xref: /freebsd/contrib/elftoolchain/readelf/readelf.c (revision 63d1fd5970ec814904aa0f4580b10a0d302d08b2)
1 /*-
2  * Copyright (c) 2009-2015 Kai Wang
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/param.h>
28 #include <sys/queue.h>
29 #include <ar.h>
30 #include <assert.h>
31 #include <ctype.h>
32 #include <dwarf.h>
33 #include <err.h>
34 #include <fcntl.h>
35 #include <gelf.h>
36 #include <getopt.h>
37 #include <libdwarf.h>
38 #include <libelftc.h>
39 #include <libgen.h>
40 #include <stdarg.h>
41 #include <stdint.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <string.h>
45 #include <time.h>
46 #include <unistd.h>
47 
48 #include "_elftc.h"
49 
50 ELFTC_VCSID("$Id: readelf.c 3484 2016-08-03 13:36:49Z emaste $");
51 
52 /* Backwards compatability for older FreeBSD releases. */
53 #ifndef	STB_GNU_UNIQUE
54 #define	STB_GNU_UNIQUE 10
55 #endif
56 #ifndef	STT_SPARC_REGISTER
57 #define	STT_SPARC_REGISTER 13
58 #endif
59 
60 
61 /*
62  * readelf(1) options.
63  */
64 #define	RE_AA	0x00000001
65 #define	RE_C	0x00000002
66 #define	RE_DD	0x00000004
67 #define	RE_D	0x00000008
68 #define	RE_G	0x00000010
69 #define	RE_H	0x00000020
70 #define	RE_II	0x00000040
71 #define	RE_I	0x00000080
72 #define	RE_L	0x00000100
73 #define	RE_NN	0x00000200
74 #define	RE_N	0x00000400
75 #define	RE_P	0x00000800
76 #define	RE_R	0x00001000
77 #define	RE_SS	0x00002000
78 #define	RE_S	0x00004000
79 #define	RE_T	0x00008000
80 #define	RE_U	0x00010000
81 #define	RE_VV	0x00020000
82 #define	RE_WW	0x00040000
83 #define	RE_W	0x00080000
84 #define	RE_X	0x00100000
85 
86 /*
87  * dwarf dump options.
88  */
89 #define	DW_A	0x00000001
90 #define	DW_FF	0x00000002
91 #define	DW_F	0x00000004
92 #define	DW_I	0x00000008
93 #define	DW_LL	0x00000010
94 #define	DW_L	0x00000020
95 #define	DW_M	0x00000040
96 #define	DW_O	0x00000080
97 #define	DW_P	0x00000100
98 #define	DW_RR	0x00000200
99 #define	DW_R	0x00000400
100 #define	DW_S	0x00000800
101 
102 #define	DW_DEFAULT_OPTIONS (DW_A | DW_F | DW_I | DW_L | DW_O | DW_P | \
103 	    DW_R | DW_RR | DW_S)
104 
105 /*
106  * readelf(1) run control flags.
107  */
108 #define	DISPLAY_FILENAME	0x0001
109 
110 /*
111  * Internal data structure for sections.
112  */
113 struct section {
114 	const char	*name;		/* section name */
115 	Elf_Scn		*scn;		/* section scn */
116 	uint64_t	 off;		/* section offset */
117 	uint64_t	 sz;		/* section size */
118 	uint64_t	 entsize;	/* section entsize */
119 	uint64_t	 align;		/* section alignment */
120 	uint64_t	 type;		/* section type */
121 	uint64_t	 flags;		/* section flags */
122 	uint64_t	 addr;		/* section virtual addr */
123 	uint32_t	 link;		/* section link ndx */
124 	uint32_t	 info;		/* section info ndx */
125 };
126 
127 struct dumpop {
128 	union {
129 		size_t si;		/* section index */
130 		const char *sn;		/* section name */
131 	} u;
132 	enum {
133 		DUMP_BY_INDEX = 0,
134 		DUMP_BY_NAME
135 	} type;				/* dump type */
136 #define HEX_DUMP	0x0001
137 #define STR_DUMP	0x0002
138 	int op;				/* dump operation */
139 	STAILQ_ENTRY(dumpop) dumpop_list;
140 };
141 
142 struct symver {
143 	const char *name;
144 	int type;
145 };
146 
147 /*
148  * Structure encapsulates the global data for readelf(1).
149  */
150 struct readelf {
151 	const char	 *filename;	/* current processing file. */
152 	int		  options;	/* command line options. */
153 	int		  flags;	/* run control flags. */
154 	int		  dop;		/* dwarf dump options. */
155 	Elf		 *elf;		/* underlying ELF descriptor. */
156 	Elf		 *ar;		/* archive ELF descriptor. */
157 	Dwarf_Debug	  dbg;		/* DWARF handle. */
158 	Dwarf_Half	  cu_psize;	/* DWARF CU pointer size. */
159 	Dwarf_Half	  cu_osize;	/* DWARF CU offset size. */
160 	Dwarf_Half	  cu_ver;	/* DWARF CU version. */
161 	GElf_Ehdr	  ehdr;		/* ELF header. */
162 	int		  ec;		/* ELF class. */
163 	size_t		  shnum;	/* #sections. */
164 	struct section	 *vd_s;		/* Verdef section. */
165 	struct section	 *vn_s;		/* Verneed section. */
166 	struct section	 *vs_s;		/* Versym section. */
167 	uint16_t	 *vs;		/* Versym array. */
168 	int		  vs_sz;	/* Versym array size. */
169 	struct symver	 *ver;		/* Version array. */
170 	int		  ver_sz;	/* Size of version array. */
171 	struct section	 *sl;		/* list of sections. */
172 	STAILQ_HEAD(, dumpop) v_dumpop; /* list of dump ops. */
173 	uint64_t	(*dw_read)(Elf_Data *, uint64_t *, int);
174 	uint64_t	(*dw_decode)(uint8_t **, int);
175 };
176 
177 enum options
178 {
179 	OPTION_DEBUG_DUMP
180 };
181 
182 static struct option longopts[] = {
183 	{"all", no_argument, NULL, 'a'},
184 	{"arch-specific", no_argument, NULL, 'A'},
185 	{"archive-index", no_argument, NULL, 'c'},
186 	{"debug-dump", optional_argument, NULL, OPTION_DEBUG_DUMP},
187 	{"dynamic", no_argument, NULL, 'd'},
188 	{"file-header", no_argument, NULL, 'h'},
189 	{"full-section-name", no_argument, NULL, 'N'},
190 	{"headers", no_argument, NULL, 'e'},
191 	{"help", no_argument, 0, 'H'},
192 	{"hex-dump", required_argument, NULL, 'x'},
193 	{"histogram", no_argument, NULL, 'I'},
194 	{"notes", no_argument, NULL, 'n'},
195 	{"program-headers", no_argument, NULL, 'l'},
196 	{"relocs", no_argument, NULL, 'r'},
197 	{"sections", no_argument, NULL, 'S'},
198 	{"section-headers", no_argument, NULL, 'S'},
199 	{"section-groups", no_argument, NULL, 'g'},
200 	{"section-details", no_argument, NULL, 't'},
201 	{"segments", no_argument, NULL, 'l'},
202 	{"string-dump", required_argument, NULL, 'p'},
203 	{"symbols", no_argument, NULL, 's'},
204 	{"syms", no_argument, NULL, 's'},
205 	{"unwind", no_argument, NULL, 'u'},
206 	{"use-dynamic", no_argument, NULL, 'D'},
207 	{"version-info", no_argument, 0, 'V'},
208 	{"version", no_argument, 0, 'v'},
209 	{"wide", no_argument, 0, 'W'},
210 	{NULL, 0, NULL, 0}
211 };
212 
213 struct eflags_desc {
214 	uint64_t flag;
215 	const char *desc;
216 };
217 
218 struct mips_option {
219 	uint64_t flag;
220 	const char *desc;
221 };
222 
223 static void add_dumpop(struct readelf *re, size_t si, const char *sn, int op,
224     int t);
225 static const char *aeabi_adv_simd_arch(uint64_t simd);
226 static const char *aeabi_align_needed(uint64_t an);
227 static const char *aeabi_align_preserved(uint64_t ap);
228 static const char *aeabi_arm_isa(uint64_t ai);
229 static const char *aeabi_cpu_arch(uint64_t arch);
230 static const char *aeabi_cpu_arch_profile(uint64_t pf);
231 static const char *aeabi_div(uint64_t du);
232 static const char *aeabi_enum_size(uint64_t es);
233 static const char *aeabi_fp_16bit_format(uint64_t fp16);
234 static const char *aeabi_fp_arch(uint64_t fp);
235 static const char *aeabi_fp_denormal(uint64_t fd);
236 static const char *aeabi_fp_exceptions(uint64_t fe);
237 static const char *aeabi_fp_hpext(uint64_t fh);
238 static const char *aeabi_fp_number_model(uint64_t fn);
239 static const char *aeabi_fp_optm_goal(uint64_t fog);
240 static const char *aeabi_fp_rounding(uint64_t fr);
241 static const char *aeabi_hardfp(uint64_t hfp);
242 static const char *aeabi_mpext(uint64_t mp);
243 static const char *aeabi_optm_goal(uint64_t og);
244 static const char *aeabi_pcs_config(uint64_t pcs);
245 static const char *aeabi_pcs_got(uint64_t got);
246 static const char *aeabi_pcs_r9(uint64_t r9);
247 static const char *aeabi_pcs_ro(uint64_t ro);
248 static const char *aeabi_pcs_rw(uint64_t rw);
249 static const char *aeabi_pcs_wchar_t(uint64_t wt);
250 static const char *aeabi_t2ee(uint64_t t2ee);
251 static const char *aeabi_thumb_isa(uint64_t ti);
252 static const char *aeabi_fp_user_exceptions(uint64_t fu);
253 static const char *aeabi_unaligned_access(uint64_t ua);
254 static const char *aeabi_vfp_args(uint64_t va);
255 static const char *aeabi_virtual(uint64_t vt);
256 static const char *aeabi_wmmx_arch(uint64_t wmmx);
257 static const char *aeabi_wmmx_args(uint64_t wa);
258 static const char *elf_class(unsigned int class);
259 static const char *elf_endian(unsigned int endian);
260 static const char *elf_machine(unsigned int mach);
261 static const char *elf_osabi(unsigned int abi);
262 static const char *elf_type(unsigned int type);
263 static const char *elf_ver(unsigned int ver);
264 static const char *dt_type(unsigned int mach, unsigned int dtype);
265 static void dump_ar(struct readelf *re, int);
266 static void dump_arm_attributes(struct readelf *re, uint8_t *p, uint8_t *pe);
267 static void dump_attributes(struct readelf *re);
268 static uint8_t *dump_compatibility_tag(uint8_t *p, uint8_t *pe);
269 static void dump_dwarf(struct readelf *re);
270 static void dump_dwarf_abbrev(struct readelf *re);
271 static void dump_dwarf_aranges(struct readelf *re);
272 static void dump_dwarf_block(struct readelf *re, uint8_t *b,
273     Dwarf_Unsigned len);
274 static void dump_dwarf_die(struct readelf *re, Dwarf_Die die, int level);
275 static void dump_dwarf_frame(struct readelf *re, int alt);
276 static void dump_dwarf_frame_inst(struct readelf *re, Dwarf_Cie cie,
277     uint8_t *insts, Dwarf_Unsigned len, Dwarf_Unsigned caf, Dwarf_Signed daf,
278     Dwarf_Addr pc, Dwarf_Debug dbg);
279 static int dump_dwarf_frame_regtable(struct readelf *re, Dwarf_Fde fde,
280     Dwarf_Addr pc, Dwarf_Unsigned func_len, Dwarf_Half cie_ra);
281 static void dump_dwarf_frame_section(struct readelf *re, struct section *s,
282     int alt);
283 static void dump_dwarf_info(struct readelf *re, Dwarf_Bool is_info);
284 static void dump_dwarf_macinfo(struct readelf *re);
285 static void dump_dwarf_line(struct readelf *re);
286 static void dump_dwarf_line_decoded(struct readelf *re);
287 static void dump_dwarf_loc(struct readelf *re, Dwarf_Loc *lr);
288 static void dump_dwarf_loclist(struct readelf *re);
289 static void dump_dwarf_pubnames(struct readelf *re);
290 static void dump_dwarf_ranges(struct readelf *re);
291 static void dump_dwarf_ranges_foreach(struct readelf *re, Dwarf_Die die,
292     Dwarf_Addr base);
293 static void dump_dwarf_str(struct readelf *re);
294 static void dump_eflags(struct readelf *re, uint64_t e_flags);
295 static void dump_elf(struct readelf *re);
296 static void dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab);
297 static void dump_dynamic(struct readelf *re);
298 static void dump_liblist(struct readelf *re);
299 static void dump_mips_attributes(struct readelf *re, uint8_t *p, uint8_t *pe);
300 static void dump_mips_odk_reginfo(struct readelf *re, uint8_t *p, size_t sz);
301 static void dump_mips_options(struct readelf *re, struct section *s);
302 static void dump_mips_option_flags(const char *name, struct mips_option *opt,
303     uint64_t info);
304 static void dump_mips_reginfo(struct readelf *re, struct section *s);
305 static void dump_mips_specific_info(struct readelf *re);
306 static void dump_notes(struct readelf *re);
307 static void dump_notes_content(struct readelf *re, const char *buf, size_t sz,
308     off_t off);
309 static void dump_svr4_hash(struct section *s);
310 static void dump_svr4_hash64(struct readelf *re, struct section *s);
311 static void dump_gnu_hash(struct readelf *re, struct section *s);
312 static void dump_hash(struct readelf *re);
313 static void dump_phdr(struct readelf *re);
314 static void dump_ppc_attributes(uint8_t *p, uint8_t *pe);
315 static void dump_section_groups(struct readelf *re);
316 static void dump_symtab(struct readelf *re, int i);
317 static void dump_symtabs(struct readelf *re);
318 static uint8_t *dump_unknown_tag(uint64_t tag, uint8_t *p, uint8_t *pe);
319 static void dump_ver(struct readelf *re);
320 static void dump_verdef(struct readelf *re, int dump);
321 static void dump_verneed(struct readelf *re, int dump);
322 static void dump_versym(struct readelf *re);
323 static const char *dwarf_reg(unsigned int mach, unsigned int reg);
324 static const char *dwarf_regname(struct readelf *re, unsigned int num);
325 static struct dumpop *find_dumpop(struct readelf *re, size_t si,
326     const char *sn, int op, int t);
327 static int get_ent_count(struct section *s, int *ent_count);
328 static char *get_regoff_str(struct readelf *re, Dwarf_Half reg,
329     Dwarf_Addr off);
330 static const char *get_string(struct readelf *re, int strtab, size_t off);
331 static const char *get_symbol_name(struct readelf *re, int symtab, int i);
332 static uint64_t get_symbol_value(struct readelf *re, int symtab, int i);
333 static void load_sections(struct readelf *re);
334 static const char *mips_abi_fp(uint64_t fp);
335 static const char *note_type(const char *note_name, unsigned int et,
336     unsigned int nt);
337 static const char *note_type_freebsd(unsigned int nt);
338 static const char *note_type_freebsd_core(unsigned int nt);
339 static const char *note_type_linux_core(unsigned int nt);
340 static const char *note_type_gnu(unsigned int nt);
341 static const char *note_type_netbsd(unsigned int nt);
342 static const char *note_type_openbsd(unsigned int nt);
343 static const char *note_type_unknown(unsigned int nt);
344 static const char *note_type_xen(unsigned int nt);
345 static const char *option_kind(uint8_t kind);
346 static const char *phdr_type(unsigned int mach, unsigned int ptype);
347 static const char *ppc_abi_fp(uint64_t fp);
348 static const char *ppc_abi_vector(uint64_t vec);
349 static void readelf_usage(int status);
350 static void readelf_version(void);
351 static void search_loclist_at(struct readelf *re, Dwarf_Die die,
352     Dwarf_Unsigned lowpc);
353 static void search_ver(struct readelf *re);
354 static const char *section_type(unsigned int mach, unsigned int stype);
355 static void set_cu_context(struct readelf *re, Dwarf_Half psize,
356     Dwarf_Half osize, Dwarf_Half ver);
357 static const char *st_bind(unsigned int sbind);
358 static const char *st_shndx(unsigned int shndx);
359 static const char *st_type(unsigned int mach, unsigned int os,
360     unsigned int stype);
361 static const char *st_vis(unsigned int svis);
362 static const char *top_tag(unsigned int tag);
363 static void unload_sections(struct readelf *re);
364 static uint64_t _read_lsb(Elf_Data *d, uint64_t *offsetp,
365     int bytes_to_read);
366 static uint64_t _read_msb(Elf_Data *d, uint64_t *offsetp,
367     int bytes_to_read);
368 static uint64_t _decode_lsb(uint8_t **data, int bytes_to_read);
369 static uint64_t _decode_msb(uint8_t **data, int bytes_to_read);
370 static int64_t _decode_sleb128(uint8_t **dp, uint8_t *dpe);
371 static uint64_t _decode_uleb128(uint8_t **dp, uint8_t *dpe);
372 
373 static struct eflags_desc arm_eflags_desc[] = {
374 	{EF_ARM_RELEXEC, "relocatable executable"},
375 	{EF_ARM_HASENTRY, "has entry point"},
376 	{EF_ARM_SYMSARESORTED, "sorted symbol tables"},
377 	{EF_ARM_DYNSYMSUSESEGIDX, "dynamic symbols use segment index"},
378 	{EF_ARM_MAPSYMSFIRST, "mapping symbols precede others"},
379 	{EF_ARM_BE8, "BE8"},
380 	{EF_ARM_LE8, "LE8"},
381 	{EF_ARM_INTERWORK, "interworking enabled"},
382 	{EF_ARM_APCS_26, "uses APCS/26"},
383 	{EF_ARM_APCS_FLOAT, "uses APCS/float"},
384 	{EF_ARM_PIC, "position independent"},
385 	{EF_ARM_ALIGN8, "8 bit structure alignment"},
386 	{EF_ARM_NEW_ABI, "uses new ABI"},
387 	{EF_ARM_OLD_ABI, "uses old ABI"},
388 	{EF_ARM_SOFT_FLOAT, "software FP"},
389 	{EF_ARM_VFP_FLOAT, "VFP"},
390 	{EF_ARM_MAVERICK_FLOAT, "Maverick FP"},
391 	{0, NULL}
392 };
393 
394 static struct eflags_desc mips_eflags_desc[] = {
395 	{EF_MIPS_NOREORDER, "noreorder"},
396 	{EF_MIPS_PIC, "pic"},
397 	{EF_MIPS_CPIC, "cpic"},
398 	{EF_MIPS_UCODE, "ugen_reserved"},
399 	{EF_MIPS_ABI2, "abi2"},
400 	{EF_MIPS_OPTIONS_FIRST, "odk first"},
401 	{EF_MIPS_ARCH_ASE_MDMX, "mdmx"},
402 	{EF_MIPS_ARCH_ASE_M16, "mips16"},
403 	{0, NULL}
404 };
405 
406 static struct eflags_desc powerpc_eflags_desc[] = {
407 	{EF_PPC_EMB, "emb"},
408 	{EF_PPC_RELOCATABLE, "relocatable"},
409 	{EF_PPC_RELOCATABLE_LIB, "relocatable-lib"},
410 	{0, NULL}
411 };
412 
413 static struct eflags_desc sparc_eflags_desc[] = {
414 	{EF_SPARC_32PLUS, "v8+"},
415 	{EF_SPARC_SUN_US1, "ultrasparcI"},
416 	{EF_SPARC_HAL_R1, "halr1"},
417 	{EF_SPARC_SUN_US3, "ultrasparcIII"},
418 	{0, NULL}
419 };
420 
421 static const char *
422 elf_osabi(unsigned int abi)
423 {
424 	static char s_abi[32];
425 
426 	switch(abi) {
427 	case ELFOSABI_NONE: return "NONE";
428 	case ELFOSABI_HPUX: return "HPUX";
429 	case ELFOSABI_NETBSD: return "NetBSD";
430 	case ELFOSABI_GNU: return "GNU";
431 	case ELFOSABI_HURD: return "HURD";
432 	case ELFOSABI_86OPEN: return "86OPEN";
433 	case ELFOSABI_SOLARIS: return "Solaris";
434 	case ELFOSABI_AIX: return "AIX";
435 	case ELFOSABI_IRIX: return "IRIX";
436 	case ELFOSABI_FREEBSD: return "FreeBSD";
437 	case ELFOSABI_TRU64: return "TRU64";
438 	case ELFOSABI_MODESTO: return "MODESTO";
439 	case ELFOSABI_OPENBSD: return "OpenBSD";
440 	case ELFOSABI_OPENVMS: return "OpenVMS";
441 	case ELFOSABI_NSK: return "NSK";
442 	case ELFOSABI_CLOUDABI: return "CloudABI";
443 	case ELFOSABI_ARM_AEABI: return "ARM EABI";
444 	case ELFOSABI_ARM: return "ARM";
445 	case ELFOSABI_STANDALONE: return "StandAlone";
446 	default:
447 		snprintf(s_abi, sizeof(s_abi), "<unknown: %#x>", abi);
448 		return (s_abi);
449 	}
450 };
451 
452 static const char *
453 elf_machine(unsigned int mach)
454 {
455 	static char s_mach[32];
456 
457 	switch (mach) {
458 	case EM_NONE: return "Unknown machine";
459 	case EM_M32: return "AT&T WE32100";
460 	case EM_SPARC: return "Sun SPARC";
461 	case EM_386: return "Intel i386";
462 	case EM_68K: return "Motorola 68000";
463 	case EM_IAMCU: return "Intel MCU";
464 	case EM_88K: return "Motorola 88000";
465 	case EM_860: return "Intel i860";
466 	case EM_MIPS: return "MIPS R3000 Big-Endian only";
467 	case EM_S370: return "IBM System/370";
468 	case EM_MIPS_RS3_LE: return "MIPS R3000 Little-Endian";
469 	case EM_PARISC: return "HP PA-RISC";
470 	case EM_VPP500: return "Fujitsu VPP500";
471 	case EM_SPARC32PLUS: return "SPARC v8plus";
472 	case EM_960: return "Intel 80960";
473 	case EM_PPC: return "PowerPC 32-bit";
474 	case EM_PPC64: return "PowerPC 64-bit";
475 	case EM_S390: return "IBM System/390";
476 	case EM_V800: return "NEC V800";
477 	case EM_FR20: return "Fujitsu FR20";
478 	case EM_RH32: return "TRW RH-32";
479 	case EM_RCE: return "Motorola RCE";
480 	case EM_ARM: return "ARM";
481 	case EM_SH: return "Hitachi SH";
482 	case EM_SPARCV9: return "SPARC v9 64-bit";
483 	case EM_TRICORE: return "Siemens TriCore embedded processor";
484 	case EM_ARC: return "Argonaut RISC Core";
485 	case EM_H8_300: return "Hitachi H8/300";
486 	case EM_H8_300H: return "Hitachi H8/300H";
487 	case EM_H8S: return "Hitachi H8S";
488 	case EM_H8_500: return "Hitachi H8/500";
489 	case EM_IA_64: return "Intel IA-64 Processor";
490 	case EM_MIPS_X: return "Stanford MIPS-X";
491 	case EM_COLDFIRE: return "Motorola ColdFire";
492 	case EM_68HC12: return "Motorola M68HC12";
493 	case EM_MMA: return "Fujitsu MMA";
494 	case EM_PCP: return "Siemens PCP";
495 	case EM_NCPU: return "Sony nCPU";
496 	case EM_NDR1: return "Denso NDR1 microprocessor";
497 	case EM_STARCORE: return "Motorola Star*Core processor";
498 	case EM_ME16: return "Toyota ME16 processor";
499 	case EM_ST100: return "STMicroelectronics ST100 processor";
500 	case EM_TINYJ: return "Advanced Logic Corp. TinyJ processor";
501 	case EM_X86_64: return "Advanced Micro Devices x86-64";
502 	case EM_PDSP: return "Sony DSP Processor";
503 	case EM_FX66: return "Siemens FX66 microcontroller";
504 	case EM_ST9PLUS: return "STMicroelectronics ST9+ 8/16 microcontroller";
505 	case EM_ST7: return "STmicroelectronics ST7 8-bit microcontroller";
506 	case EM_68HC16: return "Motorola MC68HC16 microcontroller";
507 	case EM_68HC11: return "Motorola MC68HC11 microcontroller";
508 	case EM_68HC08: return "Motorola MC68HC08 microcontroller";
509 	case EM_68HC05: return "Motorola MC68HC05 microcontroller";
510 	case EM_SVX: return "Silicon Graphics SVx";
511 	case EM_ST19: return "STMicroelectronics ST19 8-bit mc";
512 	case EM_VAX: return "Digital VAX";
513 	case EM_CRIS: return "Axis Communications 32-bit embedded processor";
514 	case EM_JAVELIN: return "Infineon Tech. 32bit embedded processor";
515 	case EM_FIREPATH: return "Element 14 64-bit DSP Processor";
516 	case EM_ZSP: return "LSI Logic 16-bit DSP Processor";
517 	case EM_MMIX: return "Donald Knuth's educational 64-bit proc";
518 	case EM_HUANY: return "Harvard University MI object files";
519 	case EM_PRISM: return "SiTera Prism";
520 	case EM_AVR: return "Atmel AVR 8-bit microcontroller";
521 	case EM_FR30: return "Fujitsu FR30";
522 	case EM_D10V: return "Mitsubishi D10V";
523 	case EM_D30V: return "Mitsubishi D30V";
524 	case EM_V850: return "NEC v850";
525 	case EM_M32R: return "Mitsubishi M32R";
526 	case EM_MN10300: return "Matsushita MN10300";
527 	case EM_MN10200: return "Matsushita MN10200";
528 	case EM_PJ: return "picoJava";
529 	case EM_OPENRISC: return "OpenRISC 32-bit embedded processor";
530 	case EM_ARC_A5: return "ARC Cores Tangent-A5";
531 	case EM_XTENSA: return "Tensilica Xtensa Architecture";
532 	case EM_VIDEOCORE: return "Alphamosaic VideoCore processor";
533 	case EM_TMM_GPP: return "Thompson Multimedia General Purpose Processor";
534 	case EM_NS32K: return "National Semiconductor 32000 series";
535 	case EM_TPC: return "Tenor Network TPC processor";
536 	case EM_SNP1K: return "Trebia SNP 1000 processor";
537 	case EM_ST200: return "STMicroelectronics ST200 microcontroller";
538 	case EM_IP2K: return "Ubicom IP2xxx microcontroller family";
539 	case EM_MAX: return "MAX Processor";
540 	case EM_CR: return "National Semiconductor CompactRISC microprocessor";
541 	case EM_F2MC16: return "Fujitsu F2MC16";
542 	case EM_MSP430: return "TI embedded microcontroller msp430";
543 	case EM_BLACKFIN: return "Analog Devices Blackfin (DSP) processor";
544 	case EM_SE_C33: return "S1C33 Family of Seiko Epson processors";
545 	case EM_SEP: return "Sharp embedded microprocessor";
546 	case EM_ARCA: return "Arca RISC Microprocessor";
547 	case EM_UNICORE: return "Microprocessor series from PKU-Unity Ltd";
548 	case EM_AARCH64: return "AArch64";
549 	case EM_RISCV: return "RISC-V";
550 	default:
551 		snprintf(s_mach, sizeof(s_mach), "<unknown: %#x>", mach);
552 		return (s_mach);
553 	}
554 
555 }
556 
557 static const char *
558 elf_class(unsigned int class)
559 {
560 	static char s_class[32];
561 
562 	switch (class) {
563 	case ELFCLASSNONE: return "none";
564 	case ELFCLASS32: return "ELF32";
565 	case ELFCLASS64: return "ELF64";
566 	default:
567 		snprintf(s_class, sizeof(s_class), "<unknown: %#x>", class);
568 		return (s_class);
569 	}
570 }
571 
572 static const char *
573 elf_endian(unsigned int endian)
574 {
575 	static char s_endian[32];
576 
577 	switch (endian) {
578 	case ELFDATANONE: return "none";
579 	case ELFDATA2LSB: return "2's complement, little endian";
580 	case ELFDATA2MSB: return "2's complement, big endian";
581 	default:
582 		snprintf(s_endian, sizeof(s_endian), "<unknown: %#x>", endian);
583 		return (s_endian);
584 	}
585 }
586 
587 static const char *
588 elf_type(unsigned int type)
589 {
590 	static char s_type[32];
591 
592 	switch (type) {
593 	case ET_NONE: return "NONE (None)";
594 	case ET_REL: return "REL (Relocatable file)";
595 	case ET_EXEC: return "EXEC (Executable file)";
596 	case ET_DYN: return "DYN (Shared object file)";
597 	case ET_CORE: return "CORE (Core file)";
598 	default:
599 		if (type >= ET_LOPROC)
600 			snprintf(s_type, sizeof(s_type), "<proc: %#x>", type);
601 		else if (type >= ET_LOOS && type <= ET_HIOS)
602 			snprintf(s_type, sizeof(s_type), "<os: %#x>", type);
603 		else
604 			snprintf(s_type, sizeof(s_type), "<unknown: %#x>",
605 			    type);
606 		return (s_type);
607 	}
608 }
609 
610 static const char *
611 elf_ver(unsigned int ver)
612 {
613 	static char s_ver[32];
614 
615 	switch (ver) {
616 	case EV_CURRENT: return "(current)";
617 	case EV_NONE: return "(none)";
618 	default:
619 		snprintf(s_ver, sizeof(s_ver), "<unknown: %#x>",
620 		    ver);
621 		return (s_ver);
622 	}
623 }
624 
625 static const char *
626 phdr_type(unsigned int mach, unsigned int ptype)
627 {
628 	static char s_ptype[32];
629 
630 	if (ptype >= PT_LOPROC && ptype <= PT_HIPROC) {
631 		switch (mach) {
632 		case EM_ARM:
633 			switch (ptype) {
634 			case PT_ARM_ARCHEXT: return "ARM_ARCHEXT";
635 			case PT_ARM_EXIDX: return "ARM_EXIDX";
636 			}
637 			break;
638 		}
639 		snprintf(s_ptype, sizeof(s_ptype), "LOPROC+%#x",
640 		    ptype - PT_LOPROC);
641 		return (s_ptype);
642 	}
643 
644 	switch (ptype) {
645 	case PT_NULL: return "NULL";
646 	case PT_LOAD: return "LOAD";
647 	case PT_DYNAMIC: return "DYNAMIC";
648 	case PT_INTERP: return "INTERP";
649 	case PT_NOTE: return "NOTE";
650 	case PT_SHLIB: return "SHLIB";
651 	case PT_PHDR: return "PHDR";
652 	case PT_TLS: return "TLS";
653 	case PT_GNU_EH_FRAME: return "GNU_EH_FRAME";
654 	case PT_GNU_STACK: return "GNU_STACK";
655 	case PT_GNU_RELRO: return "GNU_RELRO";
656 	default:
657 		if (ptype >= PT_LOOS && ptype <= PT_HIOS)
658 			snprintf(s_ptype, sizeof(s_ptype), "LOOS+%#x",
659 			    ptype - PT_LOOS);
660 		else
661 			snprintf(s_ptype, sizeof(s_ptype), "<unknown: %#x>",
662 			    ptype);
663 		return (s_ptype);
664 	}
665 }
666 
667 static const char *
668 section_type(unsigned int mach, unsigned int stype)
669 {
670 	static char s_stype[32];
671 
672 	if (stype >= SHT_LOPROC && stype <= SHT_HIPROC) {
673 		switch (mach) {
674 		case EM_ARM:
675 			switch (stype) {
676 			case SHT_ARM_EXIDX: return "ARM_EXIDX";
677 			case SHT_ARM_PREEMPTMAP: return "ARM_PREEMPTMAP";
678 			case SHT_ARM_ATTRIBUTES: return "ARM_ATTRIBUTES";
679 			case SHT_ARM_DEBUGOVERLAY: return "ARM_DEBUGOVERLAY";
680 			case SHT_ARM_OVERLAYSECTION: return "ARM_OVERLAYSECTION";
681 			}
682 			break;
683 		case EM_X86_64:
684 			switch (stype) {
685 			case SHT_X86_64_UNWIND: return "X86_64_UNWIND";
686 			default:
687 				break;
688 			}
689 			break;
690 		case EM_MIPS:
691 		case EM_MIPS_RS3_LE:
692 			switch (stype) {
693 			case SHT_MIPS_LIBLIST: return "MIPS_LIBLIST";
694 			case SHT_MIPS_MSYM: return "MIPS_MSYM";
695 			case SHT_MIPS_CONFLICT: return "MIPS_CONFLICT";
696 			case SHT_MIPS_GPTAB: return "MIPS_GPTAB";
697 			case SHT_MIPS_UCODE: return "MIPS_UCODE";
698 			case SHT_MIPS_DEBUG: return "MIPS_DEBUG";
699 			case SHT_MIPS_REGINFO: return "MIPS_REGINFO";
700 			case SHT_MIPS_PACKAGE: return "MIPS_PACKAGE";
701 			case SHT_MIPS_PACKSYM: return "MIPS_PACKSYM";
702 			case SHT_MIPS_RELD: return "MIPS_RELD";
703 			case SHT_MIPS_IFACE: return "MIPS_IFACE";
704 			case SHT_MIPS_CONTENT: return "MIPS_CONTENT";
705 			case SHT_MIPS_OPTIONS: return "MIPS_OPTIONS";
706 			case SHT_MIPS_DELTASYM: return "MIPS_DELTASYM";
707 			case SHT_MIPS_DELTAINST: return "MIPS_DELTAINST";
708 			case SHT_MIPS_DELTACLASS: return "MIPS_DELTACLASS";
709 			case SHT_MIPS_DWARF: return "MIPS_DWARF";
710 			case SHT_MIPS_DELTADECL: return "MIPS_DELTADECL";
711 			case SHT_MIPS_SYMBOL_LIB: return "MIPS_SYMBOL_LIB";
712 			case SHT_MIPS_EVENTS: return "MIPS_EVENTS";
713 			case SHT_MIPS_TRANSLATE: return "MIPS_TRANSLATE";
714 			case SHT_MIPS_PIXIE: return "MIPS_PIXIE";
715 			case SHT_MIPS_XLATE: return "MIPS_XLATE";
716 			case SHT_MIPS_XLATE_DEBUG: return "MIPS_XLATE_DEBUG";
717 			case SHT_MIPS_WHIRL: return "MIPS_WHIRL";
718 			case SHT_MIPS_EH_REGION: return "MIPS_EH_REGION";
719 			case SHT_MIPS_XLATE_OLD: return "MIPS_XLATE_OLD";
720 			case SHT_MIPS_PDR_EXCEPTION: return "MIPS_PDR_EXCEPTION";
721 			default:
722 				break;
723 			}
724 			break;
725 		default:
726 			break;
727 		}
728 
729 		snprintf(s_stype, sizeof(s_stype), "LOPROC+%#x",
730 		    stype - SHT_LOPROC);
731 		return (s_stype);
732 	}
733 
734 	switch (stype) {
735 	case SHT_NULL: return "NULL";
736 	case SHT_PROGBITS: return "PROGBITS";
737 	case SHT_SYMTAB: return "SYMTAB";
738 	case SHT_STRTAB: return "STRTAB";
739 	case SHT_RELA: return "RELA";
740 	case SHT_HASH: return "HASH";
741 	case SHT_DYNAMIC: return "DYNAMIC";
742 	case SHT_NOTE: return "NOTE";
743 	case SHT_NOBITS: return "NOBITS";
744 	case SHT_REL: return "REL";
745 	case SHT_SHLIB: return "SHLIB";
746 	case SHT_DYNSYM: return "DYNSYM";
747 	case SHT_INIT_ARRAY: return "INIT_ARRAY";
748 	case SHT_FINI_ARRAY: return "FINI_ARRAY";
749 	case SHT_PREINIT_ARRAY: return "PREINIT_ARRAY";
750 	case SHT_GROUP: return "GROUP";
751 	case SHT_SYMTAB_SHNDX: return "SYMTAB_SHNDX";
752 	case SHT_SUNW_dof: return "SUNW_dof";
753 	case SHT_SUNW_cap: return "SUNW_cap";
754 	case SHT_GNU_HASH: return "GNU_HASH";
755 	case SHT_SUNW_ANNOTATE: return "SUNW_ANNOTATE";
756 	case SHT_SUNW_DEBUGSTR: return "SUNW_DEBUGSTR";
757 	case SHT_SUNW_DEBUG: return "SUNW_DEBUG";
758 	case SHT_SUNW_move: return "SUNW_move";
759 	case SHT_SUNW_COMDAT: return "SUNW_COMDAT";
760 	case SHT_SUNW_syminfo: return "SUNW_syminfo";
761 	case SHT_SUNW_verdef: return "SUNW_verdef";
762 	case SHT_SUNW_verneed: return "SUNW_verneed";
763 	case SHT_SUNW_versym: return "SUNW_versym";
764 	default:
765 		if (stype >= SHT_LOOS && stype <= SHT_HIOS)
766 			snprintf(s_stype, sizeof(s_stype), "LOOS+%#x",
767 			    stype - SHT_LOOS);
768 		else if (stype >= SHT_LOUSER)
769 			snprintf(s_stype, sizeof(s_stype), "LOUSER+%#x",
770 			    stype - SHT_LOUSER);
771 		else
772 			snprintf(s_stype, sizeof(s_stype), "<unknown: %#x>",
773 			    stype);
774 		return (s_stype);
775 	}
776 }
777 
778 static const char *
779 dt_type(unsigned int mach, unsigned int dtype)
780 {
781 	static char s_dtype[32];
782 
783 	if (dtype >= DT_LOPROC && dtype <= DT_HIPROC) {
784 		switch (mach) {
785 		case EM_ARM:
786 			switch (dtype) {
787 			case DT_ARM_SYMTABSZ:
788 				return "ARM_SYMTABSZ";
789 			default:
790 				break;
791 			}
792 			break;
793 		case EM_MIPS:
794 		case EM_MIPS_RS3_LE:
795 			switch (dtype) {
796 			case DT_MIPS_RLD_VERSION:
797 				return "MIPS_RLD_VERSION";
798 			case DT_MIPS_TIME_STAMP:
799 				return "MIPS_TIME_STAMP";
800 			case DT_MIPS_ICHECKSUM:
801 				return "MIPS_ICHECKSUM";
802 			case DT_MIPS_IVERSION:
803 				return "MIPS_IVERSION";
804 			case DT_MIPS_FLAGS:
805 				return "MIPS_FLAGS";
806 			case DT_MIPS_BASE_ADDRESS:
807 				return "MIPS_BASE_ADDRESS";
808 			case DT_MIPS_CONFLICT:
809 				return "MIPS_CONFLICT";
810 			case DT_MIPS_LIBLIST:
811 				return "MIPS_LIBLIST";
812 			case DT_MIPS_LOCAL_GOTNO:
813 				return "MIPS_LOCAL_GOTNO";
814 			case DT_MIPS_CONFLICTNO:
815 				return "MIPS_CONFLICTNO";
816 			case DT_MIPS_LIBLISTNO:
817 				return "MIPS_LIBLISTNO";
818 			case DT_MIPS_SYMTABNO:
819 				return "MIPS_SYMTABNO";
820 			case DT_MIPS_UNREFEXTNO:
821 				return "MIPS_UNREFEXTNO";
822 			case DT_MIPS_GOTSYM:
823 				return "MIPS_GOTSYM";
824 			case DT_MIPS_HIPAGENO:
825 				return "MIPS_HIPAGENO";
826 			case DT_MIPS_RLD_MAP:
827 				return "MIPS_RLD_MAP";
828 			case DT_MIPS_DELTA_CLASS:
829 				return "MIPS_DELTA_CLASS";
830 			case DT_MIPS_DELTA_CLASS_NO:
831 				return "MIPS_DELTA_CLASS_NO";
832 			case DT_MIPS_DELTA_INSTANCE:
833 				return "MIPS_DELTA_INSTANCE";
834 			case DT_MIPS_DELTA_INSTANCE_NO:
835 				return "MIPS_DELTA_INSTANCE_NO";
836 			case DT_MIPS_DELTA_RELOC:
837 				return "MIPS_DELTA_RELOC";
838 			case DT_MIPS_DELTA_RELOC_NO:
839 				return "MIPS_DELTA_RELOC_NO";
840 			case DT_MIPS_DELTA_SYM:
841 				return "MIPS_DELTA_SYM";
842 			case DT_MIPS_DELTA_SYM_NO:
843 				return "MIPS_DELTA_SYM_NO";
844 			case DT_MIPS_DELTA_CLASSSYM:
845 				return "MIPS_DELTA_CLASSSYM";
846 			case DT_MIPS_DELTA_CLASSSYM_NO:
847 				return "MIPS_DELTA_CLASSSYM_NO";
848 			case DT_MIPS_CXX_FLAGS:
849 				return "MIPS_CXX_FLAGS";
850 			case DT_MIPS_PIXIE_INIT:
851 				return "MIPS_PIXIE_INIT";
852 			case DT_MIPS_SYMBOL_LIB:
853 				return "MIPS_SYMBOL_LIB";
854 			case DT_MIPS_LOCALPAGE_GOTIDX:
855 				return "MIPS_LOCALPAGE_GOTIDX";
856 			case DT_MIPS_LOCAL_GOTIDX:
857 				return "MIPS_LOCAL_GOTIDX";
858 			case DT_MIPS_HIDDEN_GOTIDX:
859 				return "MIPS_HIDDEN_GOTIDX";
860 			case DT_MIPS_PROTECTED_GOTIDX:
861 				return "MIPS_PROTECTED_GOTIDX";
862 			case DT_MIPS_OPTIONS:
863 				return "MIPS_OPTIONS";
864 			case DT_MIPS_INTERFACE:
865 				return "MIPS_INTERFACE";
866 			case DT_MIPS_DYNSTR_ALIGN:
867 				return "MIPS_DYNSTR_ALIGN";
868 			case DT_MIPS_INTERFACE_SIZE:
869 				return "MIPS_INTERFACE_SIZE";
870 			case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
871 				return "MIPS_RLD_TEXT_RESOLVE_ADDR";
872 			case DT_MIPS_PERF_SUFFIX:
873 				return "MIPS_PERF_SUFFIX";
874 			case DT_MIPS_COMPACT_SIZE:
875 				return "MIPS_COMPACT_SIZE";
876 			case DT_MIPS_GP_VALUE:
877 				return "MIPS_GP_VALUE";
878 			case DT_MIPS_AUX_DYNAMIC:
879 				return "MIPS_AUX_DYNAMIC";
880 			case DT_MIPS_PLTGOT:
881 				return "MIPS_PLTGOT";
882 			case DT_MIPS_RLD_OBJ_UPDATE:
883 				return "MIPS_RLD_OBJ_UPDATE";
884 			case DT_MIPS_RWPLT:
885 				return "MIPS_RWPLT";
886 			default:
887 				break;
888 			}
889 			break;
890 		case EM_SPARC:
891 		case EM_SPARC32PLUS:
892 		case EM_SPARCV9:
893 			switch (dtype) {
894 			case DT_SPARC_REGISTER:
895 				return "DT_SPARC_REGISTER";
896 			default:
897 				break;
898 			}
899 			break;
900 		default:
901 			break;
902 		}
903 		snprintf(s_dtype, sizeof(s_dtype), "<unknown: %#x>", dtype);
904 		return (s_dtype);
905 	}
906 
907 	switch (dtype) {
908 	case DT_NULL: return "NULL";
909 	case DT_NEEDED: return "NEEDED";
910 	case DT_PLTRELSZ: return "PLTRELSZ";
911 	case DT_PLTGOT: return "PLTGOT";
912 	case DT_HASH: return "HASH";
913 	case DT_STRTAB: return "STRTAB";
914 	case DT_SYMTAB: return "SYMTAB";
915 	case DT_RELA: return "RELA";
916 	case DT_RELASZ: return "RELASZ";
917 	case DT_RELAENT: return "RELAENT";
918 	case DT_STRSZ: return "STRSZ";
919 	case DT_SYMENT: return "SYMENT";
920 	case DT_INIT: return "INIT";
921 	case DT_FINI: return "FINI";
922 	case DT_SONAME: return "SONAME";
923 	case DT_RPATH: return "RPATH";
924 	case DT_SYMBOLIC: return "SYMBOLIC";
925 	case DT_REL: return "REL";
926 	case DT_RELSZ: return "RELSZ";
927 	case DT_RELENT: return "RELENT";
928 	case DT_PLTREL: return "PLTREL";
929 	case DT_DEBUG: return "DEBUG";
930 	case DT_TEXTREL: return "TEXTREL";
931 	case DT_JMPREL: return "JMPREL";
932 	case DT_BIND_NOW: return "BIND_NOW";
933 	case DT_INIT_ARRAY: return "INIT_ARRAY";
934 	case DT_FINI_ARRAY: return "FINI_ARRAY";
935 	case DT_INIT_ARRAYSZ: return "INIT_ARRAYSZ";
936 	case DT_FINI_ARRAYSZ: return "FINI_ARRAYSZ";
937 	case DT_RUNPATH: return "RUNPATH";
938 	case DT_FLAGS: return "FLAGS";
939 	case DT_PREINIT_ARRAY: return "PREINIT_ARRAY";
940 	case DT_PREINIT_ARRAYSZ: return "PREINIT_ARRAYSZ";
941 	case DT_MAXPOSTAGS: return "MAXPOSTAGS";
942 	case DT_SUNW_AUXILIARY: return "SUNW_AUXILIARY";
943 	case DT_SUNW_RTLDINF: return "SUNW_RTLDINF";
944 	case DT_SUNW_FILTER: return "SUNW_FILTER";
945 	case DT_SUNW_CAP: return "SUNW_CAP";
946 	case DT_CHECKSUM: return "CHECKSUM";
947 	case DT_PLTPADSZ: return "PLTPADSZ";
948 	case DT_MOVEENT: return "MOVEENT";
949 	case DT_MOVESZ: return "MOVESZ";
950 	case DT_FEATURE: return "FEATURE";
951 	case DT_POSFLAG_1: return "POSFLAG_1";
952 	case DT_SYMINSZ: return "SYMINSZ";
953 	case DT_SYMINENT: return "SYMINENT";
954 	case DT_GNU_HASH: return "GNU_HASH";
955 	case DT_TLSDESC_PLT: return "DT_TLSDESC_PLT";
956 	case DT_TLSDESC_GOT: return "DT_TLSDESC_GOT";
957 	case DT_GNU_CONFLICT: return "GNU_CONFLICT";
958 	case DT_GNU_LIBLIST: return "GNU_LIBLIST";
959 	case DT_CONFIG: return "CONFIG";
960 	case DT_DEPAUDIT: return "DEPAUDIT";
961 	case DT_AUDIT: return "AUDIT";
962 	case DT_PLTPAD: return "PLTPAD";
963 	case DT_MOVETAB: return "MOVETAB";
964 	case DT_SYMINFO: return "SYMINFO";
965 	case DT_VERSYM: return "VERSYM";
966 	case DT_RELACOUNT: return "RELACOUNT";
967 	case DT_RELCOUNT: return "RELCOUNT";
968 	case DT_FLAGS_1: return "FLAGS_1";
969 	case DT_VERDEF: return "VERDEF";
970 	case DT_VERDEFNUM: return "VERDEFNUM";
971 	case DT_VERNEED: return "VERNEED";
972 	case DT_VERNEEDNUM: return "VERNEEDNUM";
973 	case DT_AUXILIARY: return "AUXILIARY";
974 	case DT_USED: return "USED";
975 	case DT_FILTER: return "FILTER";
976 	case DT_GNU_PRELINKED: return "GNU_PRELINKED";
977 	case DT_GNU_CONFLICTSZ: return "GNU_CONFLICTSZ";
978 	case DT_GNU_LIBLISTSZ: return "GNU_LIBLISTSZ";
979 	default:
980 		snprintf(s_dtype, sizeof(s_dtype), "<unknown: %#x>", dtype);
981 		return (s_dtype);
982 	}
983 }
984 
985 static const char *
986 st_bind(unsigned int sbind)
987 {
988 	static char s_sbind[32];
989 
990 	switch (sbind) {
991 	case STB_LOCAL: return "LOCAL";
992 	case STB_GLOBAL: return "GLOBAL";
993 	case STB_WEAK: return "WEAK";
994 	case STB_GNU_UNIQUE: return "UNIQUE";
995 	default:
996 		if (sbind >= STB_LOOS && sbind <= STB_HIOS)
997 			return "OS";
998 		else if (sbind >= STB_LOPROC && sbind <= STB_HIPROC)
999 			return "PROC";
1000 		else
1001 			snprintf(s_sbind, sizeof(s_sbind), "<unknown: %#x>",
1002 			    sbind);
1003 		return (s_sbind);
1004 	}
1005 }
1006 
1007 static const char *
1008 st_type(unsigned int mach, unsigned int os, unsigned int stype)
1009 {
1010 	static char s_stype[32];
1011 
1012 	switch (stype) {
1013 	case STT_NOTYPE: return "NOTYPE";
1014 	case STT_OBJECT: return "OBJECT";
1015 	case STT_FUNC: return "FUNC";
1016 	case STT_SECTION: return "SECTION";
1017 	case STT_FILE: return "FILE";
1018 	case STT_COMMON: return "COMMON";
1019 	case STT_TLS: return "TLS";
1020 	default:
1021 		if (stype >= STT_LOOS && stype <= STT_HIOS) {
1022 			if ((os == ELFOSABI_GNU || os == ELFOSABI_FREEBSD) &&
1023 			    stype == STT_GNU_IFUNC)
1024 				return "IFUNC";
1025 			snprintf(s_stype, sizeof(s_stype), "OS+%#x",
1026 			    stype - STT_LOOS);
1027 		} else if (stype >= STT_LOPROC && stype <= STT_HIPROC) {
1028 			if (mach == EM_SPARCV9 && stype == STT_SPARC_REGISTER)
1029 				return "REGISTER";
1030 			snprintf(s_stype, sizeof(s_stype), "PROC+%#x",
1031 			    stype - STT_LOPROC);
1032 		} else
1033 			snprintf(s_stype, sizeof(s_stype), "<unknown: %#x>",
1034 			    stype);
1035 		return (s_stype);
1036 	}
1037 }
1038 
1039 static const char *
1040 st_vis(unsigned int svis)
1041 {
1042 	static char s_svis[32];
1043 
1044 	switch(svis) {
1045 	case STV_DEFAULT: return "DEFAULT";
1046 	case STV_INTERNAL: return "INTERNAL";
1047 	case STV_HIDDEN: return "HIDDEN";
1048 	case STV_PROTECTED: return "PROTECTED";
1049 	default:
1050 		snprintf(s_svis, sizeof(s_svis), "<unknown: %#x>", svis);
1051 		return (s_svis);
1052 	}
1053 }
1054 
1055 static const char *
1056 st_shndx(unsigned int shndx)
1057 {
1058 	static char s_shndx[32];
1059 
1060 	switch (shndx) {
1061 	case SHN_UNDEF: return "UND";
1062 	case SHN_ABS: return "ABS";
1063 	case SHN_COMMON: return "COM";
1064 	default:
1065 		if (shndx >= SHN_LOPROC && shndx <= SHN_HIPROC)
1066 			return "PRC";
1067 		else if (shndx >= SHN_LOOS && shndx <= SHN_HIOS)
1068 			return "OS";
1069 		else
1070 			snprintf(s_shndx, sizeof(s_shndx), "%u", shndx);
1071 		return (s_shndx);
1072 	}
1073 }
1074 
1075 static struct {
1076 	const char *ln;
1077 	char sn;
1078 	int value;
1079 } section_flag[] = {
1080 	{"WRITE", 'W', SHF_WRITE},
1081 	{"ALLOC", 'A', SHF_ALLOC},
1082 	{"EXEC", 'X', SHF_EXECINSTR},
1083 	{"MERGE", 'M', SHF_MERGE},
1084 	{"STRINGS", 'S', SHF_STRINGS},
1085 	{"INFO LINK", 'I', SHF_INFO_LINK},
1086 	{"OS NONCONF", 'O', SHF_OS_NONCONFORMING},
1087 	{"GROUP", 'G', SHF_GROUP},
1088 	{"TLS", 'T', SHF_TLS},
1089 	{"COMPRESSED", 'C', SHF_COMPRESSED},
1090 	{NULL, 0, 0}
1091 };
1092 
1093 static const char *
1094 note_type(const char *name, unsigned int et, unsigned int nt)
1095 {
1096 	if ((strcmp(name, "CORE") == 0 || strcmp(name, "LINUX") == 0) &&
1097 	    et == ET_CORE)
1098 		return note_type_linux_core(nt);
1099 	else if (strcmp(name, "FreeBSD") == 0)
1100 		if (et == ET_CORE)
1101 			return note_type_freebsd_core(nt);
1102 		else
1103 			return note_type_freebsd(nt);
1104 	else if (strcmp(name, "GNU") == 0 && et != ET_CORE)
1105 		return note_type_gnu(nt);
1106 	else if (strcmp(name, "NetBSD") == 0 && et != ET_CORE)
1107 		return note_type_netbsd(nt);
1108 	else if (strcmp(name, "OpenBSD") == 0 && et != ET_CORE)
1109 		return note_type_openbsd(nt);
1110 	else if (strcmp(name, "Xen") == 0 && et != ET_CORE)
1111 		return note_type_xen(nt);
1112 	return note_type_unknown(nt);
1113 }
1114 
1115 static const char *
1116 note_type_freebsd(unsigned int nt)
1117 {
1118 	switch (nt) {
1119 	case 1: return "NT_FREEBSD_ABI_TAG";
1120 	case 2: return "NT_FREEBSD_NOINIT_TAG";
1121 	case 3: return "NT_FREEBSD_ARCH_TAG";
1122 	default: return (note_type_unknown(nt));
1123 	}
1124 }
1125 
1126 static const char *
1127 note_type_freebsd_core(unsigned int nt)
1128 {
1129 	switch (nt) {
1130 	case 1: return "NT_PRSTATUS";
1131 	case 2: return "NT_FPREGSET";
1132 	case 3: return "NT_PRPSINFO";
1133 	case 7: return "NT_THRMISC";
1134 	case 8: return "NT_PROCSTAT_PROC";
1135 	case 9: return "NT_PROCSTAT_FILES";
1136 	case 10: return "NT_PROCSTAT_VMMAP";
1137 	case 11: return "NT_PROCSTAT_GROUPS";
1138 	case 12: return "NT_PROCSTAT_UMASK";
1139 	case 13: return "NT_PROCSTAT_RLIMIT";
1140 	case 14: return "NT_PROCSTAT_OSREL";
1141 	case 15: return "NT_PROCSTAT_PSSTRINGS";
1142 	case 16: return "NT_PROCSTAT_AUXV";
1143 	case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)";
1144 	default: return (note_type_unknown(nt));
1145 	}
1146 }
1147 
1148 static const char *
1149 note_type_linux_core(unsigned int nt)
1150 {
1151 	switch (nt) {
1152 	case 1: return "NT_PRSTATUS (Process status)";
1153 	case 2: return "NT_FPREGSET (Floating point information)";
1154 	case 3: return "NT_PRPSINFO (Process information)";
1155 	case 4: return "NT_TASKSTRUCT (Task structure)";
1156 	case 6: return "NT_AUXV (Auxiliary vector)";
1157 	case 10: return "NT_PSTATUS (Linux process status)";
1158 	case 12: return "NT_FPREGS (Linux floating point regset)";
1159 	case 13: return "NT_PSINFO (Linux process information)";
1160 	case 16: return "NT_LWPSTATUS (Linux lwpstatus_t type)";
1161 	case 17: return "NT_LWPSINFO (Linux lwpinfo_t type)";
1162 	case 18: return "NT_WIN32PSTATUS (win32_pstatus structure)";
1163 	case 0x100: return "NT_PPC_VMX (ppc Altivec registers)";
1164 	case 0x102: return "NT_PPC_VSX (ppc VSX registers)";
1165 	case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)";
1166 	case 0x300: return "NT_S390_HIGH_GPRS (s390 upper register halves)";
1167 	case 0x301: return "NT_S390_TIMER (s390 timer register)";
1168 	case 0x302: return "NT_S390_TODCMP (s390 TOD comparator register)";
1169 	case 0x303: return "NT_S390_TODPREG (s390 TOD programmable register)";
1170 	case 0x304: return "NT_S390_CTRS (s390 control registers)";
1171 	case 0x305: return "NT_S390_PREFIX (s390 prefix register)";
1172 	case 0x400: return "NT_ARM_VFP (arm VFP registers)";
1173 	case 0x46494c45UL: return "NT_FILE (mapped files)";
1174 	case 0x46E62B7FUL: return "NT_PRXFPREG (Linux user_xfpregs structure)";
1175 	case 0x53494749UL: return "NT_SIGINFO (siginfo_t data)";
1176 	default: return (note_type_unknown(nt));
1177 	}
1178 }
1179 
1180 static const char *
1181 note_type_gnu(unsigned int nt)
1182 {
1183 	switch (nt) {
1184 	case 1: return "NT_GNU_ABI_TAG";
1185 	case 2: return "NT_GNU_HWCAP (Hardware capabilities)";
1186 	case 3: return "NT_GNU_BUILD_ID (Build id set by ld(1))";
1187 	case 4: return "NT_GNU_GOLD_VERSION (GNU gold version)";
1188 	default: return (note_type_unknown(nt));
1189 	}
1190 }
1191 
1192 static const char *
1193 note_type_netbsd(unsigned int nt)
1194 {
1195 	switch (nt) {
1196 	case 1: return "NT_NETBSD_IDENT";
1197 	default: return (note_type_unknown(nt));
1198 	}
1199 }
1200 
1201 static const char *
1202 note_type_openbsd(unsigned int nt)
1203 {
1204 	switch (nt) {
1205 	case 1: return "NT_OPENBSD_IDENT";
1206 	default: return (note_type_unknown(nt));
1207 	}
1208 }
1209 
1210 static const char *
1211 note_type_unknown(unsigned int nt)
1212 {
1213 	static char s_nt[32];
1214 
1215 	snprintf(s_nt, sizeof(s_nt),
1216 	    nt >= 0x100 ? "<unknown: 0x%x>" : "<unknown: %u>", nt);
1217 	return (s_nt);
1218 }
1219 
1220 static const char *
1221 note_type_xen(unsigned int nt)
1222 {
1223 	switch (nt) {
1224 	case 0: return "XEN_ELFNOTE_INFO";
1225 	case 1: return "XEN_ELFNOTE_ENTRY";
1226 	case 2: return "XEN_ELFNOTE_HYPERCALL_PAGE";
1227 	case 3: return "XEN_ELFNOTE_VIRT_BASE";
1228 	case 4: return "XEN_ELFNOTE_PADDR_OFFSET";
1229 	case 5: return "XEN_ELFNOTE_XEN_VERSION";
1230 	case 6: return "XEN_ELFNOTE_GUEST_OS";
1231 	case 7: return "XEN_ELFNOTE_GUEST_VERSION";
1232 	case 8: return "XEN_ELFNOTE_LOADER";
1233 	case 9: return "XEN_ELFNOTE_PAE_MODE";
1234 	case 10: return "XEN_ELFNOTE_FEATURES";
1235 	case 11: return "XEN_ELFNOTE_BSD_SYMTAB";
1236 	case 12: return "XEN_ELFNOTE_HV_START_LOW";
1237 	case 13: return "XEN_ELFNOTE_L1_MFN_VALID";
1238 	case 14: return "XEN_ELFNOTE_SUSPEND_CANCEL";
1239 	case 15: return "XEN_ELFNOTE_INIT_P2M";
1240 	case 16: return "XEN_ELFNOTE_MOD_START_PFN";
1241 	case 17: return "XEN_ELFNOTE_SUPPORTED_FEATURES";
1242 	default: return (note_type_unknown(nt));
1243 	}
1244 }
1245 
1246 static struct {
1247 	const char *name;
1248 	int value;
1249 } l_flag[] = {
1250 	{"EXACT_MATCH", LL_EXACT_MATCH},
1251 	{"IGNORE_INT_VER", LL_IGNORE_INT_VER},
1252 	{"REQUIRE_MINOR", LL_REQUIRE_MINOR},
1253 	{"EXPORTS", LL_EXPORTS},
1254 	{"DELAY_LOAD", LL_DELAY_LOAD},
1255 	{"DELTA", LL_DELTA},
1256 	{NULL, 0}
1257 };
1258 
1259 static struct mips_option mips_exceptions_option[] = {
1260 	{OEX_PAGE0, "PAGE0"},
1261 	{OEX_SMM, "SMM"},
1262 	{OEX_PRECISEFP, "PRECISEFP"},
1263 	{OEX_DISMISS, "DISMISS"},
1264 	{0, NULL}
1265 };
1266 
1267 static struct mips_option mips_pad_option[] = {
1268 	{OPAD_PREFIX, "PREFIX"},
1269 	{OPAD_POSTFIX, "POSTFIX"},
1270 	{OPAD_SYMBOL, "SYMBOL"},
1271 	{0, NULL}
1272 };
1273 
1274 static struct mips_option mips_hwpatch_option[] = {
1275 	{OHW_R4KEOP, "R4KEOP"},
1276 	{OHW_R8KPFETCH, "R8KPFETCH"},
1277 	{OHW_R5KEOP, "R5KEOP"},
1278 	{OHW_R5KCVTL, "R5KCVTL"},
1279 	{0, NULL}
1280 };
1281 
1282 static struct mips_option mips_hwa_option[] = {
1283 	{OHWA0_R4KEOP_CHECKED, "R4KEOP_CHECKED"},
1284 	{OHWA0_R4KEOP_CLEAN, "R4KEOP_CLEAN"},
1285 	{0, NULL}
1286 };
1287 
1288 static struct mips_option mips_hwo_option[] = {
1289 	{OHWO0_FIXADE, "FIXADE"},
1290 	{0, NULL}
1291 };
1292 
1293 static const char *
1294 option_kind(uint8_t kind)
1295 {
1296 	static char s_kind[32];
1297 
1298 	switch (kind) {
1299 	case ODK_NULL: return "NULL";
1300 	case ODK_REGINFO: return "REGINFO";
1301 	case ODK_EXCEPTIONS: return "EXCEPTIONS";
1302 	case ODK_PAD: return "PAD";
1303 	case ODK_HWPATCH: return "HWPATCH";
1304 	case ODK_FILL: return "FILL";
1305 	case ODK_TAGS: return "TAGS";
1306 	case ODK_HWAND: return "HWAND";
1307 	case ODK_HWOR: return "HWOR";
1308 	case ODK_GP_GROUP: return "GP_GROUP";
1309 	case ODK_IDENT: return "IDENT";
1310 	default:
1311 		snprintf(s_kind, sizeof(s_kind), "<unknown: %u>", kind);
1312 		return (s_kind);
1313 	}
1314 }
1315 
1316 static const char *
1317 top_tag(unsigned int tag)
1318 {
1319 	static char s_top_tag[32];
1320 
1321 	switch (tag) {
1322 	case 1: return "File Attributes";
1323 	case 2: return "Section Attributes";
1324 	case 3: return "Symbol Attributes";
1325 	default:
1326 		snprintf(s_top_tag, sizeof(s_top_tag), "Unknown tag: %u", tag);
1327 		return (s_top_tag);
1328 	}
1329 }
1330 
1331 static const char *
1332 aeabi_cpu_arch(uint64_t arch)
1333 {
1334 	static char s_cpu_arch[32];
1335 
1336 	switch (arch) {
1337 	case 0: return "Pre-V4";
1338 	case 1: return "ARM v4";
1339 	case 2: return "ARM v4T";
1340 	case 3: return "ARM v5T";
1341 	case 4: return "ARM v5TE";
1342 	case 5: return "ARM v5TEJ";
1343 	case 6: return "ARM v6";
1344 	case 7: return "ARM v6KZ";
1345 	case 8: return "ARM v6T2";
1346 	case 9: return "ARM v6K";
1347 	case 10: return "ARM v7";
1348 	case 11: return "ARM v6-M";
1349 	case 12: return "ARM v6S-M";
1350 	case 13: return "ARM v7E-M";
1351 	default:
1352 		snprintf(s_cpu_arch, sizeof(s_cpu_arch),
1353 		    "Unknown (%ju)", (uintmax_t) arch);
1354 		return (s_cpu_arch);
1355 	}
1356 }
1357 
1358 static const char *
1359 aeabi_cpu_arch_profile(uint64_t pf)
1360 {
1361 	static char s_arch_profile[32];
1362 
1363 	switch (pf) {
1364 	case 0:
1365 		return "Not applicable";
1366 	case 0x41:		/* 'A' */
1367 		return "Application Profile";
1368 	case 0x52:		/* 'R' */
1369 		return "Real-Time Profile";
1370 	case 0x4D:		/* 'M' */
1371 		return "Microcontroller Profile";
1372 	case 0x53:		/* 'S' */
1373 		return "Application or Real-Time Profile";
1374 	default:
1375 		snprintf(s_arch_profile, sizeof(s_arch_profile),
1376 		    "Unknown (%ju)\n", (uintmax_t) pf);
1377 		return (s_arch_profile);
1378 	}
1379 }
1380 
1381 static const char *
1382 aeabi_arm_isa(uint64_t ai)
1383 {
1384 	static char s_ai[32];
1385 
1386 	switch (ai) {
1387 	case 0: return "No";
1388 	case 1: return "Yes";
1389 	default:
1390 		snprintf(s_ai, sizeof(s_ai), "Unknown (%ju)\n",
1391 		    (uintmax_t) ai);
1392 		return (s_ai);
1393 	}
1394 }
1395 
1396 static const char *
1397 aeabi_thumb_isa(uint64_t ti)
1398 {
1399 	static char s_ti[32];
1400 
1401 	switch (ti) {
1402 	case 0: return "No";
1403 	case 1: return "16-bit Thumb";
1404 	case 2: return "32-bit Thumb";
1405 	default:
1406 		snprintf(s_ti, sizeof(s_ti), "Unknown (%ju)\n",
1407 		    (uintmax_t) ti);
1408 		return (s_ti);
1409 	}
1410 }
1411 
1412 static const char *
1413 aeabi_fp_arch(uint64_t fp)
1414 {
1415 	static char s_fp_arch[32];
1416 
1417 	switch (fp) {
1418 	case 0: return "No";
1419 	case 1: return "VFPv1";
1420 	case 2: return "VFPv2";
1421 	case 3: return "VFPv3";
1422 	case 4: return "VFPv3-D16";
1423 	case 5: return "VFPv4";
1424 	case 6: return "VFPv4-D16";
1425 	default:
1426 		snprintf(s_fp_arch, sizeof(s_fp_arch), "Unknown (%ju)",
1427 		    (uintmax_t) fp);
1428 		return (s_fp_arch);
1429 	}
1430 }
1431 
1432 static const char *
1433 aeabi_wmmx_arch(uint64_t wmmx)
1434 {
1435 	static char s_wmmx[32];
1436 
1437 	switch (wmmx) {
1438 	case 0: return "No";
1439 	case 1: return "WMMXv1";
1440 	case 2: return "WMMXv2";
1441 	default:
1442 		snprintf(s_wmmx, sizeof(s_wmmx), "Unknown (%ju)",
1443 		    (uintmax_t) wmmx);
1444 		return (s_wmmx);
1445 	}
1446 }
1447 
1448 static const char *
1449 aeabi_adv_simd_arch(uint64_t simd)
1450 {
1451 	static char s_simd[32];
1452 
1453 	switch (simd) {
1454 	case 0: return "No";
1455 	case 1: return "NEONv1";
1456 	case 2: return "NEONv2";
1457 	default:
1458 		snprintf(s_simd, sizeof(s_simd), "Unknown (%ju)",
1459 		    (uintmax_t) simd);
1460 		return (s_simd);
1461 	}
1462 }
1463 
1464 static const char *
1465 aeabi_pcs_config(uint64_t pcs)
1466 {
1467 	static char s_pcs[32];
1468 
1469 	switch (pcs) {
1470 	case 0: return "None";
1471 	case 1: return "Bare platform";
1472 	case 2: return "Linux";
1473 	case 3: return "Linux DSO";
1474 	case 4: return "Palm OS 2004";
1475 	case 5: return "Palm OS (future)";
1476 	case 6: return "Symbian OS 2004";
1477 	case 7: return "Symbian OS (future)";
1478 	default:
1479 		snprintf(s_pcs, sizeof(s_pcs), "Unknown (%ju)",
1480 		    (uintmax_t) pcs);
1481 		return (s_pcs);
1482 	}
1483 }
1484 
1485 static const char *
1486 aeabi_pcs_r9(uint64_t r9)
1487 {
1488 	static char s_r9[32];
1489 
1490 	switch (r9) {
1491 	case 0: return "V6";
1492 	case 1: return "SB";
1493 	case 2: return "TLS pointer";
1494 	case 3: return "Unused";
1495 	default:
1496 		snprintf(s_r9, sizeof(s_r9), "Unknown (%ju)", (uintmax_t) r9);
1497 		return (s_r9);
1498 	}
1499 }
1500 
1501 static const char *
1502 aeabi_pcs_rw(uint64_t rw)
1503 {
1504 	static char s_rw[32];
1505 
1506 	switch (rw) {
1507 	case 0: return "Absolute";
1508 	case 1: return "PC-relative";
1509 	case 2: return "SB-relative";
1510 	case 3: return "None";
1511 	default:
1512 		snprintf(s_rw, sizeof(s_rw), "Unknown (%ju)", (uintmax_t) rw);
1513 		return (s_rw);
1514 	}
1515 }
1516 
1517 static const char *
1518 aeabi_pcs_ro(uint64_t ro)
1519 {
1520 	static char s_ro[32];
1521 
1522 	switch (ro) {
1523 	case 0: return "Absolute";
1524 	case 1: return "PC-relative";
1525 	case 2: return "None";
1526 	default:
1527 		snprintf(s_ro, sizeof(s_ro), "Unknown (%ju)", (uintmax_t) ro);
1528 		return (s_ro);
1529 	}
1530 }
1531 
1532 static const char *
1533 aeabi_pcs_got(uint64_t got)
1534 {
1535 	static char s_got[32];
1536 
1537 	switch (got) {
1538 	case 0: return "None";
1539 	case 1: return "direct";
1540 	case 2: return "indirect via GOT";
1541 	default:
1542 		snprintf(s_got, sizeof(s_got), "Unknown (%ju)",
1543 		    (uintmax_t) got);
1544 		return (s_got);
1545 	}
1546 }
1547 
1548 static const char *
1549 aeabi_pcs_wchar_t(uint64_t wt)
1550 {
1551 	static char s_wt[32];
1552 
1553 	switch (wt) {
1554 	case 0: return "None";
1555 	case 2: return "wchar_t size 2";
1556 	case 4: return "wchar_t size 4";
1557 	default:
1558 		snprintf(s_wt, sizeof(s_wt), "Unknown (%ju)", (uintmax_t) wt);
1559 		return (s_wt);
1560 	}
1561 }
1562 
1563 static const char *
1564 aeabi_enum_size(uint64_t es)
1565 {
1566 	static char s_es[32];
1567 
1568 	switch (es) {
1569 	case 0: return "None";
1570 	case 1: return "smallest";
1571 	case 2: return "32-bit";
1572 	case 3: return "visible 32-bit";
1573 	default:
1574 		snprintf(s_es, sizeof(s_es), "Unknown (%ju)", (uintmax_t) es);
1575 		return (s_es);
1576 	}
1577 }
1578 
1579 static const char *
1580 aeabi_align_needed(uint64_t an)
1581 {
1582 	static char s_align_n[64];
1583 
1584 	switch (an) {
1585 	case 0: return "No";
1586 	case 1: return "8-byte align";
1587 	case 2: return "4-byte align";
1588 	case 3: return "Reserved";
1589 	default:
1590 		if (an >= 4 && an <= 12)
1591 			snprintf(s_align_n, sizeof(s_align_n), "8-byte align"
1592 			    " and up to 2^%ju-byte extended align",
1593 			    (uintmax_t) an);
1594 		else
1595 			snprintf(s_align_n, sizeof(s_align_n), "Unknown (%ju)",
1596 			    (uintmax_t) an);
1597 		return (s_align_n);
1598 	}
1599 }
1600 
1601 static const char *
1602 aeabi_align_preserved(uint64_t ap)
1603 {
1604 	static char s_align_p[128];
1605 
1606 	switch (ap) {
1607 	case 0: return "No";
1608 	case 1: return "8-byte align";
1609 	case 2: return "8-byte align and SP % 8 == 0";
1610 	case 3: return "Reserved";
1611 	default:
1612 		if (ap >= 4 && ap <= 12)
1613 			snprintf(s_align_p, sizeof(s_align_p), "8-byte align"
1614 			    " and SP %% 8 == 0 and up to 2^%ju-byte extended"
1615 			    " align", (uintmax_t) ap);
1616 		else
1617 			snprintf(s_align_p, sizeof(s_align_p), "Unknown (%ju)",
1618 			    (uintmax_t) ap);
1619 		return (s_align_p);
1620 	}
1621 }
1622 
1623 static const char *
1624 aeabi_fp_rounding(uint64_t fr)
1625 {
1626 	static char s_fp_r[32];
1627 
1628 	switch (fr) {
1629 	case 0: return "Unused";
1630 	case 1: return "Needed";
1631 	default:
1632 		snprintf(s_fp_r, sizeof(s_fp_r), "Unknown (%ju)",
1633 		    (uintmax_t) fr);
1634 		return (s_fp_r);
1635 	}
1636 }
1637 
1638 static const char *
1639 aeabi_fp_denormal(uint64_t fd)
1640 {
1641 	static char s_fp_d[32];
1642 
1643 	switch (fd) {
1644 	case 0: return "Unused";
1645 	case 1: return "Needed";
1646 	case 2: return "Sign Only";
1647 	default:
1648 		snprintf(s_fp_d, sizeof(s_fp_d), "Unknown (%ju)",
1649 		    (uintmax_t) fd);
1650 		return (s_fp_d);
1651 	}
1652 }
1653 
1654 static const char *
1655 aeabi_fp_exceptions(uint64_t fe)
1656 {
1657 	static char s_fp_e[32];
1658 
1659 	switch (fe) {
1660 	case 0: return "Unused";
1661 	case 1: return "Needed";
1662 	default:
1663 		snprintf(s_fp_e, sizeof(s_fp_e), "Unknown (%ju)",
1664 		    (uintmax_t) fe);
1665 		return (s_fp_e);
1666 	}
1667 }
1668 
1669 static const char *
1670 aeabi_fp_user_exceptions(uint64_t fu)
1671 {
1672 	static char s_fp_u[32];
1673 
1674 	switch (fu) {
1675 	case 0: return "Unused";
1676 	case 1: return "Needed";
1677 	default:
1678 		snprintf(s_fp_u, sizeof(s_fp_u), "Unknown (%ju)",
1679 		    (uintmax_t) fu);
1680 		return (s_fp_u);
1681 	}
1682 }
1683 
1684 static const char *
1685 aeabi_fp_number_model(uint64_t fn)
1686 {
1687 	static char s_fp_n[32];
1688 
1689 	switch (fn) {
1690 	case 0: return "Unused";
1691 	case 1: return "IEEE 754 normal";
1692 	case 2: return "RTABI";
1693 	case 3: return "IEEE 754";
1694 	default:
1695 		snprintf(s_fp_n, sizeof(s_fp_n), "Unknown (%ju)",
1696 		    (uintmax_t) fn);
1697 		return (s_fp_n);
1698 	}
1699 }
1700 
1701 static const char *
1702 aeabi_fp_16bit_format(uint64_t fp16)
1703 {
1704 	static char s_fp_16[64];
1705 
1706 	switch (fp16) {
1707 	case 0: return "None";
1708 	case 1: return "IEEE 754";
1709 	case 2: return "VFPv3/Advanced SIMD (alternative format)";
1710 	default:
1711 		snprintf(s_fp_16, sizeof(s_fp_16), "Unknown (%ju)",
1712 		    (uintmax_t) fp16);
1713 		return (s_fp_16);
1714 	}
1715 }
1716 
1717 static const char *
1718 aeabi_mpext(uint64_t mp)
1719 {
1720 	static char s_mp[32];
1721 
1722 	switch (mp) {
1723 	case 0: return "Not allowed";
1724 	case 1: return "Allowed";
1725 	default:
1726 		snprintf(s_mp, sizeof(s_mp), "Unknown (%ju)",
1727 		    (uintmax_t) mp);
1728 		return (s_mp);
1729 	}
1730 }
1731 
1732 static const char *
1733 aeabi_div(uint64_t du)
1734 {
1735 	static char s_du[32];
1736 
1737 	switch (du) {
1738 	case 0: return "Yes (V7-R/V7-M)";
1739 	case 1: return "No";
1740 	case 2: return "Yes (V7-A)";
1741 	default:
1742 		snprintf(s_du, sizeof(s_du), "Unknown (%ju)",
1743 		    (uintmax_t) du);
1744 		return (s_du);
1745 	}
1746 }
1747 
1748 static const char *
1749 aeabi_t2ee(uint64_t t2ee)
1750 {
1751 	static char s_t2ee[32];
1752 
1753 	switch (t2ee) {
1754 	case 0: return "Not allowed";
1755 	case 1: return "Allowed";
1756 	default:
1757 		snprintf(s_t2ee, sizeof(s_t2ee), "Unknown(%ju)",
1758 		    (uintmax_t) t2ee);
1759 		return (s_t2ee);
1760 	}
1761 
1762 }
1763 
1764 static const char *
1765 aeabi_hardfp(uint64_t hfp)
1766 {
1767 	static char s_hfp[32];
1768 
1769 	switch (hfp) {
1770 	case 0: return "Tag_FP_arch";
1771 	case 1: return "only SP";
1772 	case 2: return "only DP";
1773 	case 3: return "both SP and DP";
1774 	default:
1775 		snprintf(s_hfp, sizeof(s_hfp), "Unknown (%ju)",
1776 		    (uintmax_t) hfp);
1777 		return (s_hfp);
1778 	}
1779 }
1780 
1781 static const char *
1782 aeabi_vfp_args(uint64_t va)
1783 {
1784 	static char s_va[32];
1785 
1786 	switch (va) {
1787 	case 0: return "AAPCS (base variant)";
1788 	case 1: return "AAPCS (VFP variant)";
1789 	case 2: return "toolchain-specific";
1790 	default:
1791 		snprintf(s_va, sizeof(s_va), "Unknown (%ju)", (uintmax_t) va);
1792 		return (s_va);
1793 	}
1794 }
1795 
1796 static const char *
1797 aeabi_wmmx_args(uint64_t wa)
1798 {
1799 	static char s_wa[32];
1800 
1801 	switch (wa) {
1802 	case 0: return "AAPCS (base variant)";
1803 	case 1: return "Intel WMMX";
1804 	case 2: return "toolchain-specific";
1805 	default:
1806 		snprintf(s_wa, sizeof(s_wa), "Unknown(%ju)", (uintmax_t) wa);
1807 		return (s_wa);
1808 	}
1809 }
1810 
1811 static const char *
1812 aeabi_unaligned_access(uint64_t ua)
1813 {
1814 	static char s_ua[32];
1815 
1816 	switch (ua) {
1817 	case 0: return "Not allowed";
1818 	case 1: return "Allowed";
1819 	default:
1820 		snprintf(s_ua, sizeof(s_ua), "Unknown(%ju)", (uintmax_t) ua);
1821 		return (s_ua);
1822 	}
1823 }
1824 
1825 static const char *
1826 aeabi_fp_hpext(uint64_t fh)
1827 {
1828 	static char s_fh[32];
1829 
1830 	switch (fh) {
1831 	case 0: return "Not allowed";
1832 	case 1: return "Allowed";
1833 	default:
1834 		snprintf(s_fh, sizeof(s_fh), "Unknown(%ju)", (uintmax_t) fh);
1835 		return (s_fh);
1836 	}
1837 }
1838 
1839 static const char *
1840 aeabi_optm_goal(uint64_t og)
1841 {
1842 	static char s_og[32];
1843 
1844 	switch (og) {
1845 	case 0: return "None";
1846 	case 1: return "Speed";
1847 	case 2: return "Speed aggressive";
1848 	case 3: return "Space";
1849 	case 4: return "Space aggressive";
1850 	case 5: return "Debugging";
1851 	case 6: return "Best Debugging";
1852 	default:
1853 		snprintf(s_og, sizeof(s_og), "Unknown(%ju)", (uintmax_t) og);
1854 		return (s_og);
1855 	}
1856 }
1857 
1858 static const char *
1859 aeabi_fp_optm_goal(uint64_t fog)
1860 {
1861 	static char s_fog[32];
1862 
1863 	switch (fog) {
1864 	case 0: return "None";
1865 	case 1: return "Speed";
1866 	case 2: return "Speed aggressive";
1867 	case 3: return "Space";
1868 	case 4: return "Space aggressive";
1869 	case 5: return "Accurary";
1870 	case 6: return "Best Accurary";
1871 	default:
1872 		snprintf(s_fog, sizeof(s_fog), "Unknown(%ju)",
1873 		    (uintmax_t) fog);
1874 		return (s_fog);
1875 	}
1876 }
1877 
1878 static const char *
1879 aeabi_virtual(uint64_t vt)
1880 {
1881 	static char s_virtual[64];
1882 
1883 	switch (vt) {
1884 	case 0: return "No";
1885 	case 1: return "TrustZone";
1886 	case 2: return "Virtualization extension";
1887 	case 3: return "TrustZone and virtualization extension";
1888 	default:
1889 		snprintf(s_virtual, sizeof(s_virtual), "Unknown(%ju)",
1890 		    (uintmax_t) vt);
1891 		return (s_virtual);
1892 	}
1893 }
1894 
1895 static struct {
1896 	uint64_t tag;
1897 	const char *s_tag;
1898 	const char *(*get_desc)(uint64_t val);
1899 } aeabi_tags[] = {
1900 	{4, "Tag_CPU_raw_name", NULL},
1901 	{5, "Tag_CPU_name", NULL},
1902 	{6, "Tag_CPU_arch", aeabi_cpu_arch},
1903 	{7, "Tag_CPU_arch_profile", aeabi_cpu_arch_profile},
1904 	{8, "Tag_ARM_ISA_use", aeabi_arm_isa},
1905 	{9, "Tag_THUMB_ISA_use", aeabi_thumb_isa},
1906 	{10, "Tag_FP_arch", aeabi_fp_arch},
1907 	{11, "Tag_WMMX_arch", aeabi_wmmx_arch},
1908 	{12, "Tag_Advanced_SIMD_arch", aeabi_adv_simd_arch},
1909 	{13, "Tag_PCS_config", aeabi_pcs_config},
1910 	{14, "Tag_ABI_PCS_R9_use", aeabi_pcs_r9},
1911 	{15, "Tag_ABI_PCS_RW_data", aeabi_pcs_rw},
1912 	{16, "Tag_ABI_PCS_RO_data", aeabi_pcs_ro},
1913 	{17, "Tag_ABI_PCS_GOT_use", aeabi_pcs_got},
1914 	{18, "Tag_ABI_PCS_wchar_t", aeabi_pcs_wchar_t},
1915 	{19, "Tag_ABI_FP_rounding", aeabi_fp_rounding},
1916 	{20, "Tag_ABI_FP_denormal", aeabi_fp_denormal},
1917 	{21, "Tag_ABI_FP_exceptions", aeabi_fp_exceptions},
1918 	{22, "Tag_ABI_FP_user_exceptions", aeabi_fp_user_exceptions},
1919 	{23, "Tag_ABI_FP_number_model", aeabi_fp_number_model},
1920 	{24, "Tag_ABI_align_needed", aeabi_align_needed},
1921 	{25, "Tag_ABI_align_preserved", aeabi_align_preserved},
1922 	{26, "Tag_ABI_enum_size", aeabi_enum_size},
1923 	{27, "Tag_ABI_HardFP_use", aeabi_hardfp},
1924 	{28, "Tag_ABI_VFP_args", aeabi_vfp_args},
1925 	{29, "Tag_ABI_WMMX_args", aeabi_wmmx_args},
1926 	{30, "Tag_ABI_optimization_goals", aeabi_optm_goal},
1927 	{31, "Tag_ABI_FP_optimization_goals", aeabi_fp_optm_goal},
1928 	{32, "Tag_compatibility", NULL},
1929 	{34, "Tag_CPU_unaligned_access", aeabi_unaligned_access},
1930 	{36, "Tag_FP_HP_extension", aeabi_fp_hpext},
1931 	{38, "Tag_ABI_FP_16bit_format", aeabi_fp_16bit_format},
1932 	{42, "Tag_MPextension_use", aeabi_mpext},
1933 	{44, "Tag_DIV_use", aeabi_div},
1934 	{64, "Tag_nodefaults", NULL},
1935 	{65, "Tag_also_compatible_with", NULL},
1936 	{66, "Tag_T2EE_use", aeabi_t2ee},
1937 	{67, "Tag_conformance", NULL},
1938 	{68, "Tag_Virtualization_use", aeabi_virtual},
1939 	{70, "Tag_MPextension_use", aeabi_mpext},
1940 };
1941 
1942 static const char *
1943 mips_abi_fp(uint64_t fp)
1944 {
1945 	static char s_mips_abi_fp[64];
1946 
1947 	switch (fp) {
1948 	case 0: return "N/A";
1949 	case 1: return "Hard float (double precision)";
1950 	case 2: return "Hard float (single precision)";
1951 	case 3: return "Soft float";
1952 	case 4: return "64-bit float (-mips32r2 -mfp64)";
1953 	default:
1954 		snprintf(s_mips_abi_fp, sizeof(s_mips_abi_fp), "Unknown(%ju)",
1955 		    (uintmax_t) fp);
1956 		return (s_mips_abi_fp);
1957 	}
1958 }
1959 
1960 static const char *
1961 ppc_abi_fp(uint64_t fp)
1962 {
1963 	static char s_ppc_abi_fp[64];
1964 
1965 	switch (fp) {
1966 	case 0: return "N/A";
1967 	case 1: return "Hard float (double precision)";
1968 	case 2: return "Soft float";
1969 	case 3: return "Hard float (single precision)";
1970 	default:
1971 		snprintf(s_ppc_abi_fp, sizeof(s_ppc_abi_fp), "Unknown(%ju)",
1972 		    (uintmax_t) fp);
1973 		return (s_ppc_abi_fp);
1974 	}
1975 }
1976 
1977 static const char *
1978 ppc_abi_vector(uint64_t vec)
1979 {
1980 	static char s_vec[64];
1981 
1982 	switch (vec) {
1983 	case 0: return "N/A";
1984 	case 1: return "Generic purpose registers";
1985 	case 2: return "AltiVec registers";
1986 	case 3: return "SPE registers";
1987 	default:
1988 		snprintf(s_vec, sizeof(s_vec), "Unknown(%ju)", (uintmax_t) vec);
1989 		return (s_vec);
1990 	}
1991 }
1992 
1993 static const char *
1994 dwarf_reg(unsigned int mach, unsigned int reg)
1995 {
1996 
1997 	switch (mach) {
1998 	case EM_386:
1999 	case EM_IAMCU:
2000 		switch (reg) {
2001 		case 0: return "eax";
2002 		case 1: return "ecx";
2003 		case 2: return "edx";
2004 		case 3: return "ebx";
2005 		case 4: return "esp";
2006 		case 5: return "ebp";
2007 		case 6: return "esi";
2008 		case 7: return "edi";
2009 		case 8: return "eip";
2010 		case 9: return "eflags";
2011 		case 11: return "st0";
2012 		case 12: return "st1";
2013 		case 13: return "st2";
2014 		case 14: return "st3";
2015 		case 15: return "st4";
2016 		case 16: return "st5";
2017 		case 17: return "st6";
2018 		case 18: return "st7";
2019 		case 21: return "xmm0";
2020 		case 22: return "xmm1";
2021 		case 23: return "xmm2";
2022 		case 24: return "xmm3";
2023 		case 25: return "xmm4";
2024 		case 26: return "xmm5";
2025 		case 27: return "xmm6";
2026 		case 28: return "xmm7";
2027 		case 29: return "mm0";
2028 		case 30: return "mm1";
2029 		case 31: return "mm2";
2030 		case 32: return "mm3";
2031 		case 33: return "mm4";
2032 		case 34: return "mm5";
2033 		case 35: return "mm6";
2034 		case 36: return "mm7";
2035 		case 37: return "fcw";
2036 		case 38: return "fsw";
2037 		case 39: return "mxcsr";
2038 		case 40: return "es";
2039 		case 41: return "cs";
2040 		case 42: return "ss";
2041 		case 43: return "ds";
2042 		case 44: return "fs";
2043 		case 45: return "gs";
2044 		case 48: return "tr";
2045 		case 49: return "ldtr";
2046 		default: return (NULL);
2047 		}
2048 	case EM_X86_64:
2049 		switch (reg) {
2050 		case 0: return "rax";
2051 		case 1: return "rdx";
2052 		case 2: return "rcx";
2053 		case 3: return "rbx";
2054 		case 4: return "rsi";
2055 		case 5: return "rdi";
2056 		case 6: return "rbp";
2057 		case 7: return "rsp";
2058 		case 16: return "rip";
2059 		case 17: return "xmm0";
2060 		case 18: return "xmm1";
2061 		case 19: return "xmm2";
2062 		case 20: return "xmm3";
2063 		case 21: return "xmm4";
2064 		case 22: return "xmm5";
2065 		case 23: return "xmm6";
2066 		case 24: return "xmm7";
2067 		case 25: return "xmm8";
2068 		case 26: return "xmm9";
2069 		case 27: return "xmm10";
2070 		case 28: return "xmm11";
2071 		case 29: return "xmm12";
2072 		case 30: return "xmm13";
2073 		case 31: return "xmm14";
2074 		case 32: return "xmm15";
2075 		case 33: return "st0";
2076 		case 34: return "st1";
2077 		case 35: return "st2";
2078 		case 36: return "st3";
2079 		case 37: return "st4";
2080 		case 38: return "st5";
2081 		case 39: return "st6";
2082 		case 40: return "st7";
2083 		case 41: return "mm0";
2084 		case 42: return "mm1";
2085 		case 43: return "mm2";
2086 		case 44: return "mm3";
2087 		case 45: return "mm4";
2088 		case 46: return "mm5";
2089 		case 47: return "mm6";
2090 		case 48: return "mm7";
2091 		case 49: return "rflags";
2092 		case 50: return "es";
2093 		case 51: return "cs";
2094 		case 52: return "ss";
2095 		case 53: return "ds";
2096 		case 54: return "fs";
2097 		case 55: return "gs";
2098 		case 58: return "fs.base";
2099 		case 59: return "gs.base";
2100 		case 62: return "tr";
2101 		case 63: return "ldtr";
2102 		case 64: return "mxcsr";
2103 		case 65: return "fcw";
2104 		case 66: return "fsw";
2105 		default: return (NULL);
2106 		}
2107 	default:
2108 		return (NULL);
2109 	}
2110 }
2111 
2112 static void
2113 dump_ehdr(struct readelf *re)
2114 {
2115 	size_t		 phnum, shnum, shstrndx;
2116 	int		 i;
2117 
2118 	printf("ELF Header:\n");
2119 
2120 	/* e_ident[]. */
2121 	printf("  Magic:   ");
2122 	for (i = 0; i < EI_NIDENT; i++)
2123 		printf("%.2x ", re->ehdr.e_ident[i]);
2124 	putchar('\n');
2125 
2126 	/* EI_CLASS. */
2127 	printf("%-37s%s\n", "  Class:", elf_class(re->ehdr.e_ident[EI_CLASS]));
2128 
2129 	/* EI_DATA. */
2130 	printf("%-37s%s\n", "  Data:", elf_endian(re->ehdr.e_ident[EI_DATA]));
2131 
2132 	/* EI_VERSION. */
2133 	printf("%-37s%d %s\n", "  Version:", re->ehdr.e_ident[EI_VERSION],
2134 	    elf_ver(re->ehdr.e_ident[EI_VERSION]));
2135 
2136 	/* EI_OSABI. */
2137 	printf("%-37s%s\n", "  OS/ABI:", elf_osabi(re->ehdr.e_ident[EI_OSABI]));
2138 
2139 	/* EI_ABIVERSION. */
2140 	printf("%-37s%d\n", "  ABI Version:", re->ehdr.e_ident[EI_ABIVERSION]);
2141 
2142 	/* e_type. */
2143 	printf("%-37s%s\n", "  Type:", elf_type(re->ehdr.e_type));
2144 
2145 	/* e_machine. */
2146 	printf("%-37s%s\n", "  Machine:", elf_machine(re->ehdr.e_machine));
2147 
2148 	/* e_version. */
2149 	printf("%-37s%#x\n", "  Version:", re->ehdr.e_version);
2150 
2151 	/* e_entry. */
2152 	printf("%-37s%#jx\n", "  Entry point address:",
2153 	    (uintmax_t)re->ehdr.e_entry);
2154 
2155 	/* e_phoff. */
2156 	printf("%-37s%ju (bytes into file)\n", "  Start of program headers:",
2157 	    (uintmax_t)re->ehdr.e_phoff);
2158 
2159 	/* e_shoff. */
2160 	printf("%-37s%ju (bytes into file)\n", "  Start of section headers:",
2161 	    (uintmax_t)re->ehdr.e_shoff);
2162 
2163 	/* e_flags. */
2164 	printf("%-37s%#x", "  Flags:", re->ehdr.e_flags);
2165 	dump_eflags(re, re->ehdr.e_flags);
2166 	putchar('\n');
2167 
2168 	/* e_ehsize. */
2169 	printf("%-37s%u (bytes)\n", "  Size of this header:",
2170 	    re->ehdr.e_ehsize);
2171 
2172 	/* e_phentsize. */
2173 	printf("%-37s%u (bytes)\n", "  Size of program headers:",
2174 	    re->ehdr.e_phentsize);
2175 
2176 	/* e_phnum. */
2177 	printf("%-37s%u", "  Number of program headers:", re->ehdr.e_phnum);
2178 	if (re->ehdr.e_phnum == PN_XNUM) {
2179 		/* Extended program header numbering is in use. */
2180 		if (elf_getphnum(re->elf, &phnum))
2181 			printf(" (%zu)", phnum);
2182 	}
2183 	putchar('\n');
2184 
2185 	/* e_shentsize. */
2186 	printf("%-37s%u (bytes)\n", "  Size of section headers:",
2187 	    re->ehdr.e_shentsize);
2188 
2189 	/* e_shnum. */
2190 	printf("%-37s%u", "  Number of section headers:", re->ehdr.e_shnum);
2191 	if (re->ehdr.e_shnum == SHN_UNDEF) {
2192 		/* Extended section numbering is in use. */
2193 		if (elf_getshnum(re->elf, &shnum))
2194 			printf(" (%ju)", (uintmax_t)shnum);
2195 	}
2196 	putchar('\n');
2197 
2198 	/* e_shstrndx. */
2199 	printf("%-37s%u", "  Section header string table index:",
2200 	    re->ehdr.e_shstrndx);
2201 	if (re->ehdr.e_shstrndx == SHN_XINDEX) {
2202 		/* Extended section numbering is in use. */
2203 		if (elf_getshstrndx(re->elf, &shstrndx))
2204 			printf(" (%ju)", (uintmax_t)shstrndx);
2205 	}
2206 	putchar('\n');
2207 }
2208 
2209 static void
2210 dump_eflags(struct readelf *re, uint64_t e_flags)
2211 {
2212 	struct eflags_desc *edesc;
2213 	int arm_eabi;
2214 
2215 	edesc = NULL;
2216 	switch (re->ehdr.e_machine) {
2217 	case EM_ARM:
2218 		arm_eabi = (e_flags & EF_ARM_EABIMASK) >> 24;
2219 		if (arm_eabi == 0)
2220 			printf(", GNU EABI");
2221 		else if (arm_eabi <= 5)
2222 			printf(", Version%d EABI", arm_eabi);
2223 		edesc = arm_eflags_desc;
2224 		break;
2225 	case EM_MIPS:
2226 	case EM_MIPS_RS3_LE:
2227 		switch ((e_flags & EF_MIPS_ARCH) >> 28) {
2228 		case 0:	printf(", mips1"); break;
2229 		case 1: printf(", mips2"); break;
2230 		case 2: printf(", mips3"); break;
2231 		case 3: printf(", mips4"); break;
2232 		case 4: printf(", mips5"); break;
2233 		case 5: printf(", mips32"); break;
2234 		case 6: printf(", mips64"); break;
2235 		case 7: printf(", mips32r2"); break;
2236 		case 8: printf(", mips64r2"); break;
2237 		default: break;
2238 		}
2239 		switch ((e_flags & 0x00FF0000) >> 16) {
2240 		case 0x81: printf(", 3900"); break;
2241 		case 0x82: printf(", 4010"); break;
2242 		case 0x83: printf(", 4100"); break;
2243 		case 0x85: printf(", 4650"); break;
2244 		case 0x87: printf(", 4120"); break;
2245 		case 0x88: printf(", 4111"); break;
2246 		case 0x8a: printf(", sb1"); break;
2247 		case 0x8b: printf(", octeon"); break;
2248 		case 0x8c: printf(", xlr"); break;
2249 		case 0x91: printf(", 5400"); break;
2250 		case 0x98: printf(", 5500"); break;
2251 		case 0x99: printf(", 9000"); break;
2252 		case 0xa0: printf(", loongson-2e"); break;
2253 		case 0xa1: printf(", loongson-2f"); break;
2254 		default: break;
2255 		}
2256 		switch ((e_flags & 0x0000F000) >> 12) {
2257 		case 1: printf(", o32"); break;
2258 		case 2: printf(", o64"); break;
2259 		case 3: printf(", eabi32"); break;
2260 		case 4: printf(", eabi64"); break;
2261 		default: break;
2262 		}
2263 		edesc = mips_eflags_desc;
2264 		break;
2265 	case EM_PPC:
2266 	case EM_PPC64:
2267 		edesc = powerpc_eflags_desc;
2268 		break;
2269 	case EM_SPARC:
2270 	case EM_SPARC32PLUS:
2271 	case EM_SPARCV9:
2272 		switch ((e_flags & EF_SPARCV9_MM)) {
2273 		case EF_SPARCV9_TSO: printf(", tso"); break;
2274 		case EF_SPARCV9_PSO: printf(", pso"); break;
2275 		case EF_SPARCV9_MM: printf(", rmo"); break;
2276 		default: break;
2277 		}
2278 		edesc = sparc_eflags_desc;
2279 		break;
2280 	default:
2281 		break;
2282 	}
2283 
2284 	if (edesc != NULL) {
2285 		while (edesc->desc != NULL) {
2286 			if (e_flags & edesc->flag)
2287 				printf(", %s", edesc->desc);
2288 			edesc++;
2289 		}
2290 	}
2291 }
2292 
2293 static void
2294 dump_phdr(struct readelf *re)
2295 {
2296 	const char	*rawfile;
2297 	GElf_Phdr	 phdr;
2298 	size_t		 phnum, size;
2299 	int		 i, j;
2300 
2301 #define	PH_HDR	"Type", "Offset", "VirtAddr", "PhysAddr", "FileSiz",	\
2302 		"MemSiz", "Flg", "Align"
2303 #define	PH_CT	phdr_type(re->ehdr.e_machine, phdr.p_type),		\
2304 		(uintmax_t)phdr.p_offset, (uintmax_t)phdr.p_vaddr,	\
2305 		(uintmax_t)phdr.p_paddr, (uintmax_t)phdr.p_filesz,	\
2306 		(uintmax_t)phdr.p_memsz,				\
2307 		phdr.p_flags & PF_R ? 'R' : ' ',			\
2308 		phdr.p_flags & PF_W ? 'W' : ' ',			\
2309 		phdr.p_flags & PF_X ? 'E' : ' ',			\
2310 		(uintmax_t)phdr.p_align
2311 
2312 	if (elf_getphnum(re->elf, &phnum) == 0) {
2313 		warnx("elf_getphnum failed: %s", elf_errmsg(-1));
2314 		return;
2315 	}
2316 	if (phnum == 0) {
2317 		printf("\nThere are no program headers in this file.\n");
2318 		return;
2319 	}
2320 
2321 	printf("\nElf file type is %s", elf_type(re->ehdr.e_type));
2322 	printf("\nEntry point 0x%jx\n", (uintmax_t)re->ehdr.e_entry);
2323 	printf("There are %ju program headers, starting at offset %ju\n",
2324 	    (uintmax_t)phnum, (uintmax_t)re->ehdr.e_phoff);
2325 
2326 	/* Dump program headers. */
2327 	printf("\nProgram Headers:\n");
2328 	if (re->ec == ELFCLASS32)
2329 		printf("  %-15s%-9s%-11s%-11s%-8s%-8s%-4s%s\n", PH_HDR);
2330 	else if (re->options & RE_WW)
2331 		printf("  %-15s%-9s%-19s%-19s%-9s%-9s%-4s%s\n", PH_HDR);
2332 	else
2333 		printf("  %-15s%-19s%-19s%s\n                 %-19s%-20s"
2334 		    "%-7s%s\n", PH_HDR);
2335 	for (i = 0; (size_t) i < phnum; i++) {
2336 		if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
2337 			warnx("gelf_getphdr failed: %s", elf_errmsg(-1));
2338 			continue;
2339 		}
2340 		/* TODO: Add arch-specific segment type dump. */
2341 		if (re->ec == ELFCLASS32)
2342 			printf("  %-14.14s 0x%6.6jx 0x%8.8jx 0x%8.8jx "
2343 			    "0x%5.5jx 0x%5.5jx %c%c%c %#jx\n", PH_CT);
2344 		else if (re->options & RE_WW)
2345 			printf("  %-14.14s 0x%6.6jx 0x%16.16jx 0x%16.16jx "
2346 			    "0x%6.6jx 0x%6.6jx %c%c%c %#jx\n", PH_CT);
2347 		else
2348 			printf("  %-14.14s 0x%16.16jx 0x%16.16jx 0x%16.16jx\n"
2349 			    "                 0x%16.16jx 0x%16.16jx  %c%c%c"
2350 			    "    %#jx\n", PH_CT);
2351 		if (phdr.p_type == PT_INTERP) {
2352 			if ((rawfile = elf_rawfile(re->elf, &size)) == NULL) {
2353 				warnx("elf_rawfile failed: %s", elf_errmsg(-1));
2354 				continue;
2355 			}
2356 			if (phdr.p_offset >= size) {
2357 				warnx("invalid program header offset");
2358 				continue;
2359 			}
2360 			printf("      [Requesting program interpreter: %s]\n",
2361 				rawfile + phdr.p_offset);
2362 		}
2363 	}
2364 
2365 	/* Dump section to segment mapping. */
2366 	if (re->shnum == 0)
2367 		return;
2368 	printf("\n Section to Segment mapping:\n");
2369 	printf("  Segment Sections...\n");
2370 	for (i = 0; (size_t)i < phnum; i++) {
2371 		if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
2372 			warnx("gelf_getphdr failed: %s", elf_errmsg(-1));
2373 			continue;
2374 		}
2375 		printf("   %2.2d     ", i);
2376 		/* skip NULL section. */
2377 		for (j = 1; (size_t)j < re->shnum; j++)
2378 			if (re->sl[j].addr >= phdr.p_vaddr &&
2379 			    re->sl[j].addr + re->sl[j].sz <=
2380 			    phdr.p_vaddr + phdr.p_memsz)
2381 				printf("%s ", re->sl[j].name);
2382 		printf("\n");
2383 	}
2384 #undef	PH_HDR
2385 #undef	PH_CT
2386 }
2387 
2388 static char *
2389 section_flags(struct readelf *re, struct section *s)
2390 {
2391 #define BUF_SZ 256
2392 	static char	buf[BUF_SZ];
2393 	int		i, p, nb;
2394 
2395 	p = 0;
2396 	nb = re->ec == ELFCLASS32 ? 8 : 16;
2397 	if (re->options & RE_T) {
2398 		snprintf(buf, BUF_SZ, "[%*.*jx]: ", nb, nb,
2399 		    (uintmax_t)s->flags);
2400 		p += nb + 4;
2401 	}
2402 	for (i = 0; section_flag[i].ln != NULL; i++) {
2403 		if ((s->flags & section_flag[i].value) == 0)
2404 			continue;
2405 		if (re->options & RE_T) {
2406 			snprintf(&buf[p], BUF_SZ - p, "%s, ",
2407 			    section_flag[i].ln);
2408 			p += strlen(section_flag[i].ln) + 2;
2409 		} else
2410 			buf[p++] = section_flag[i].sn;
2411 	}
2412 	if (re->options & RE_T && p > nb + 4)
2413 		p -= 2;
2414 	buf[p] = '\0';
2415 
2416 	return (buf);
2417 }
2418 
2419 static void
2420 dump_shdr(struct readelf *re)
2421 {
2422 	struct section	*s;
2423 	int		 i;
2424 
2425 #define	S_HDR	"[Nr] Name", "Type", "Addr", "Off", "Size", "ES",	\
2426 		"Flg", "Lk", "Inf", "Al"
2427 #define	S_HDRL	"[Nr] Name", "Type", "Address", "Offset", "Size",	\
2428 		"EntSize", "Flags", "Link", "Info", "Align"
2429 #define	ST_HDR	"[Nr] Name", "Type", "Addr", "Off", "Size", "ES",	\
2430 		"Lk", "Inf", "Al", "Flags"
2431 #define	ST_HDRL	"[Nr] Name", "Type", "Address", "Offset", "Link",	\
2432 		"Size", "EntSize", "Info", "Align", "Flags"
2433 #define	S_CT	i, s->name, section_type(re->ehdr.e_machine, s->type),	\
2434 		(uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\
2435 		(uintmax_t)s->entsize, section_flags(re, s),		\
2436 		s->link, s->info, (uintmax_t)s->align
2437 #define	ST_CT	i, s->name, section_type(re->ehdr.e_machine, s->type),  \
2438 		(uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\
2439 		(uintmax_t)s->entsize, s->link, s->info,		\
2440 		(uintmax_t)s->align, section_flags(re, s)
2441 #define	ST_CTL	i, s->name, section_type(re->ehdr.e_machine, s->type),  \
2442 		(uintmax_t)s->addr, (uintmax_t)s->off, s->link,		\
2443 		(uintmax_t)s->sz, (uintmax_t)s->entsize, s->info,	\
2444 		(uintmax_t)s->align, section_flags(re, s)
2445 
2446 	if (re->shnum == 0) {
2447 		printf("\nThere are no sections in this file.\n");
2448 		return;
2449 	}
2450 	printf("There are %ju section headers, starting at offset 0x%jx:\n",
2451 	    (uintmax_t)re->shnum, (uintmax_t)re->ehdr.e_shoff);
2452 	printf("\nSection Headers:\n");
2453 	if (re->ec == ELFCLASS32) {
2454 		if (re->options & RE_T)
2455 			printf("  %s\n       %-16s%-9s%-7s%-7s%-5s%-3s%-4s%s\n"
2456 			    "%12s\n", ST_HDR);
2457 		else
2458 			printf("  %-23s%-16s%-9s%-7s%-7s%-3s%-4s%-3s%-4s%s\n",
2459 			    S_HDR);
2460 	} else if (re->options & RE_WW) {
2461 		if (re->options & RE_T)
2462 			printf("  %s\n       %-16s%-17s%-7s%-7s%-5s%-3s%-4s%s\n"
2463 			    "%12s\n", ST_HDR);
2464 		else
2465 			printf("  %-23s%-16s%-17s%-7s%-7s%-3s%-4s%-3s%-4s%s\n",
2466 			    S_HDR);
2467 	} else {
2468 		if (re->options & RE_T)
2469 			printf("  %s\n       %-18s%-17s%-18s%s\n       %-18s"
2470 			    "%-17s%-18s%s\n%12s\n", ST_HDRL);
2471 		else
2472 			printf("  %-23s%-17s%-18s%s\n       %-18s%-17s%-7s%"
2473 			    "-6s%-6s%s\n", S_HDRL);
2474 	}
2475 	for (i = 0; (size_t)i < re->shnum; i++) {
2476 		s = &re->sl[i];
2477 		if (re->ec == ELFCLASS32) {
2478 			if (re->options & RE_T)
2479 				printf("  [%2d] %s\n       %-15.15s %8.8jx"
2480 				    " %6.6jx %6.6jx %2.2jx  %2u %3u %2ju\n"
2481 				    "       %s\n", ST_CT);
2482 			else
2483 				printf("  [%2d] %-17.17s %-15.15s %8.8jx"
2484 				    " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n",
2485 				    S_CT);
2486 		} else if (re->options & RE_WW) {
2487 			if (re->options & RE_T)
2488 				printf("  [%2d] %s\n       %-15.15s %16.16jx"
2489 				    " %6.6jx %6.6jx %2.2jx  %2u %3u %2ju\n"
2490 				    "       %s\n", ST_CT);
2491 			else
2492 				printf("  [%2d] %-17.17s %-15.15s %16.16jx"
2493 				    " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n",
2494 				    S_CT);
2495 		} else {
2496 			if (re->options & RE_T)
2497 				printf("  [%2d] %s\n       %-15.15s  %16.16jx"
2498 				    "  %16.16jx  %u\n       %16.16jx %16.16jx"
2499 				    "  %-16u  %ju\n       %s\n", ST_CTL);
2500 			else
2501 				printf("  [%2d] %-17.17s %-15.15s  %16.16jx"
2502 				    "  %8.8jx\n       %16.16jx  %16.16jx "
2503 				    "%3s      %2u   %3u     %ju\n", S_CT);
2504 		}
2505 	}
2506 	if ((re->options & RE_T) == 0)
2507 		printf("Key to Flags:\n  W (write), A (alloc),"
2508 		    " X (execute), M (merge), S (strings)\n"
2509 		    "  I (info), L (link order), G (group), x (unknown)\n"
2510 		    "  O (extra OS processing required)"
2511 		    " o (OS specific), p (processor specific)\n");
2512 
2513 #undef	S_HDR
2514 #undef	S_HDRL
2515 #undef	ST_HDR
2516 #undef	ST_HDRL
2517 #undef	S_CT
2518 #undef	ST_CT
2519 #undef	ST_CTL
2520 }
2521 
2522 /*
2523  * Return number of entries in the given section. We'd prefer ent_count be a
2524  * size_t *, but libelf APIs already use int for section indices.
2525  */
2526 static int
2527 get_ent_count(struct section *s, int *ent_count)
2528 {
2529 	if (s->entsize == 0) {
2530 		warnx("section %s has entry size 0", s->name);
2531 		return (0);
2532 	} else if (s->sz / s->entsize > INT_MAX) {
2533 		warnx("section %s has invalid section count", s->name);
2534 		return (0);
2535 	}
2536 	*ent_count = (int)(s->sz / s->entsize);
2537 	return (1);
2538 }
2539 
2540 static void
2541 dump_dynamic(struct readelf *re)
2542 {
2543 	GElf_Dyn	 dyn;
2544 	Elf_Data	*d;
2545 	struct section	*s;
2546 	int		 elferr, i, is_dynamic, j, jmax, nentries;
2547 
2548 	is_dynamic = 0;
2549 
2550 	for (i = 0; (size_t)i < re->shnum; i++) {
2551 		s = &re->sl[i];
2552 		if (s->type != SHT_DYNAMIC)
2553 			continue;
2554 		(void) elf_errno();
2555 		if ((d = elf_getdata(s->scn, NULL)) == NULL) {
2556 			elferr = elf_errno();
2557 			if (elferr != 0)
2558 				warnx("elf_getdata failed: %s", elf_errmsg(-1));
2559 			continue;
2560 		}
2561 		if (d->d_size <= 0)
2562 			continue;
2563 
2564 		is_dynamic = 1;
2565 
2566 		/* Determine the actual number of table entries. */
2567 		nentries = 0;
2568 		if (!get_ent_count(s, &jmax))
2569 			continue;
2570 		for (j = 0; j < jmax; j++) {
2571 			if (gelf_getdyn(d, j, &dyn) != &dyn) {
2572 				warnx("gelf_getdyn failed: %s",
2573 				    elf_errmsg(-1));
2574 				continue;
2575 			}
2576 			nentries ++;
2577 			if (dyn.d_tag == DT_NULL)
2578 				break;
2579                 }
2580 
2581 		printf("\nDynamic section at offset 0x%jx", (uintmax_t)s->off);
2582 		printf(" contains %u entries:\n", nentries);
2583 
2584 		if (re->ec == ELFCLASS32)
2585 			printf("%5s%12s%28s\n", "Tag", "Type", "Name/Value");
2586 		else
2587 			printf("%5s%20s%28s\n", "Tag", "Type", "Name/Value");
2588 
2589 		for (j = 0; j < nentries; j++) {
2590 			if (gelf_getdyn(d, j, &dyn) != &dyn)
2591 				continue;
2592 			/* Dump dynamic entry type. */
2593 			if (re->ec == ELFCLASS32)
2594 				printf(" 0x%8.8jx", (uintmax_t)dyn.d_tag);
2595 			else
2596 				printf(" 0x%16.16jx", (uintmax_t)dyn.d_tag);
2597 			printf(" %-20s", dt_type(re->ehdr.e_machine,
2598 			    dyn.d_tag));
2599 			/* Dump dynamic entry value. */
2600 			dump_dyn_val(re, &dyn, s->link);
2601 		}
2602 	}
2603 
2604 	if (!is_dynamic)
2605 		printf("\nThere is no dynamic section in this file.\n");
2606 }
2607 
2608 static char *
2609 timestamp(time_t ti)
2610 {
2611 	static char ts[32];
2612 	struct tm *t;
2613 
2614 	t = gmtime(&ti);
2615 	snprintf(ts, sizeof(ts), "%04d-%02d-%02dT%02d:%02d:%02d",
2616 	    t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour,
2617 	    t->tm_min, t->tm_sec);
2618 
2619 	return (ts);
2620 }
2621 
2622 static const char *
2623 dyn_str(struct readelf *re, uint32_t stab, uint64_t d_val)
2624 {
2625 	const char *name;
2626 
2627 	if (stab == SHN_UNDEF)
2628 		name = "ERROR";
2629 	else if ((name = elf_strptr(re->elf, stab, d_val)) == NULL) {
2630 		(void) elf_errno(); /* clear error */
2631 		name = "ERROR";
2632 	}
2633 
2634 	return (name);
2635 }
2636 
2637 static void
2638 dump_arch_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab)
2639 {
2640 	const char *name;
2641 
2642 	switch (re->ehdr.e_machine) {
2643 	case EM_MIPS:
2644 	case EM_MIPS_RS3_LE:
2645 		switch (dyn->d_tag) {
2646 		case DT_MIPS_RLD_VERSION:
2647 		case DT_MIPS_LOCAL_GOTNO:
2648 		case DT_MIPS_CONFLICTNO:
2649 		case DT_MIPS_LIBLISTNO:
2650 		case DT_MIPS_SYMTABNO:
2651 		case DT_MIPS_UNREFEXTNO:
2652 		case DT_MIPS_GOTSYM:
2653 		case DT_MIPS_HIPAGENO:
2654 		case DT_MIPS_DELTA_CLASS_NO:
2655 		case DT_MIPS_DELTA_INSTANCE_NO:
2656 		case DT_MIPS_DELTA_RELOC_NO:
2657 		case DT_MIPS_DELTA_SYM_NO:
2658 		case DT_MIPS_DELTA_CLASSSYM_NO:
2659 		case DT_MIPS_LOCALPAGE_GOTIDX:
2660 		case DT_MIPS_LOCAL_GOTIDX:
2661 		case DT_MIPS_HIDDEN_GOTIDX:
2662 		case DT_MIPS_PROTECTED_GOTIDX:
2663 			printf(" %ju\n", (uintmax_t) dyn->d_un.d_val);
2664 			break;
2665 		case DT_MIPS_ICHECKSUM:
2666 		case DT_MIPS_FLAGS:
2667 		case DT_MIPS_BASE_ADDRESS:
2668 		case DT_MIPS_CONFLICT:
2669 		case DT_MIPS_LIBLIST:
2670 		case DT_MIPS_RLD_MAP:
2671 		case DT_MIPS_DELTA_CLASS:
2672 		case DT_MIPS_DELTA_INSTANCE:
2673 		case DT_MIPS_DELTA_RELOC:
2674 		case DT_MIPS_DELTA_SYM:
2675 		case DT_MIPS_DELTA_CLASSSYM:
2676 		case DT_MIPS_CXX_FLAGS:
2677 		case DT_MIPS_PIXIE_INIT:
2678 		case DT_MIPS_SYMBOL_LIB:
2679 		case DT_MIPS_OPTIONS:
2680 		case DT_MIPS_INTERFACE:
2681 		case DT_MIPS_DYNSTR_ALIGN:
2682 		case DT_MIPS_INTERFACE_SIZE:
2683 		case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
2684 		case DT_MIPS_COMPACT_SIZE:
2685 		case DT_MIPS_GP_VALUE:
2686 		case DT_MIPS_AUX_DYNAMIC:
2687 		case DT_MIPS_PLTGOT:
2688 		case DT_MIPS_RLD_OBJ_UPDATE:
2689 		case DT_MIPS_RWPLT:
2690 			printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val);
2691 			break;
2692 		case DT_MIPS_IVERSION:
2693 		case DT_MIPS_PERF_SUFFIX:
2694 		case DT_AUXILIARY:
2695 		case DT_FILTER:
2696 			name = dyn_str(re, stab, dyn->d_un.d_val);
2697 			printf(" %s\n", name);
2698 			break;
2699 		case DT_MIPS_TIME_STAMP:
2700 			printf(" %s\n", timestamp(dyn->d_un.d_val));
2701 			break;
2702 		}
2703 		break;
2704 	default:
2705 		printf("\n");
2706 		break;
2707 	}
2708 }
2709 
2710 static void
2711 dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab)
2712 {
2713 	const char *name;
2714 
2715 	if (dyn->d_tag >= DT_LOPROC && dyn->d_tag <= DT_HIPROC) {
2716 		dump_arch_dyn_val(re, dyn, stab);
2717 		return;
2718 	}
2719 
2720 	/* These entry values are index into the string table. */
2721 	name = NULL;
2722 	if (dyn->d_tag == DT_NEEDED || dyn->d_tag == DT_SONAME ||
2723 	    dyn->d_tag == DT_RPATH || dyn->d_tag == DT_RUNPATH)
2724 		name = dyn_str(re, stab, dyn->d_un.d_val);
2725 
2726 	switch(dyn->d_tag) {
2727 	case DT_NULL:
2728 	case DT_PLTGOT:
2729 	case DT_HASH:
2730 	case DT_STRTAB:
2731 	case DT_SYMTAB:
2732 	case DT_RELA:
2733 	case DT_INIT:
2734 	case DT_SYMBOLIC:
2735 	case DT_REL:
2736 	case DT_DEBUG:
2737 	case DT_TEXTREL:
2738 	case DT_JMPREL:
2739 	case DT_FINI:
2740 	case DT_VERDEF:
2741 	case DT_VERNEED:
2742 	case DT_VERSYM:
2743 	case DT_GNU_HASH:
2744 	case DT_GNU_LIBLIST:
2745 	case DT_GNU_CONFLICT:
2746 		printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val);
2747 		break;
2748 	case DT_PLTRELSZ:
2749 	case DT_RELASZ:
2750 	case DT_RELAENT:
2751 	case DT_STRSZ:
2752 	case DT_SYMENT:
2753 	case DT_RELSZ:
2754 	case DT_RELENT:
2755 	case DT_INIT_ARRAYSZ:
2756 	case DT_FINI_ARRAYSZ:
2757 	case DT_GNU_CONFLICTSZ:
2758 	case DT_GNU_LIBLISTSZ:
2759 		printf(" %ju (bytes)\n", (uintmax_t) dyn->d_un.d_val);
2760 		break;
2761  	case DT_RELACOUNT:
2762 	case DT_RELCOUNT:
2763 	case DT_VERDEFNUM:
2764 	case DT_VERNEEDNUM:
2765 		printf(" %ju\n", (uintmax_t) dyn->d_un.d_val);
2766 		break;
2767 	case DT_NEEDED:
2768 		printf(" Shared library: [%s]\n", name);
2769 		break;
2770 	case DT_SONAME:
2771 		printf(" Library soname: [%s]\n", name);
2772 		break;
2773 	case DT_RPATH:
2774 		printf(" Library rpath: [%s]\n", name);
2775 		break;
2776 	case DT_RUNPATH:
2777 		printf(" Library runpath: [%s]\n", name);
2778 		break;
2779 	case DT_PLTREL:
2780 		printf(" %s\n", dt_type(re->ehdr.e_machine, dyn->d_un.d_val));
2781 		break;
2782 	case DT_GNU_PRELINKED:
2783 		printf(" %s\n", timestamp(dyn->d_un.d_val));
2784 		break;
2785 	default:
2786 		printf("\n");
2787 	}
2788 }
2789 
2790 static void
2791 dump_rel(struct readelf *re, struct section *s, Elf_Data *d)
2792 {
2793 	GElf_Rel r;
2794 	const char *symname;
2795 	uint64_t symval;
2796 	int i, len;
2797 	uint32_t type;
2798 	uint8_t type2, type3;
2799 
2800 	if (s->link >= re->shnum)
2801 		return;
2802 
2803 #define	REL_HDR "r_offset", "r_info", "r_type", "st_value", "st_name"
2804 #define	REL_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,	    \
2805 		elftc_reloc_type_str(re->ehdr.e_machine,	    \
2806 		ELF32_R_TYPE(r.r_info)), (uintmax_t)symval, symname
2807 #define	REL_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,	    \
2808 		elftc_reloc_type_str(re->ehdr.e_machine, type),	    \
2809 		(uintmax_t)symval, symname
2810 
2811 	printf("\nRelocation section (%s):\n", s->name);
2812 	if (re->ec == ELFCLASS32)
2813 		printf("%-8s %-8s %-19s %-8s %s\n", REL_HDR);
2814 	else {
2815 		if (re->options & RE_WW)
2816 			printf("%-16s %-16s %-24s %-16s %s\n", REL_HDR);
2817 		else
2818 			printf("%-12s %-12s %-19s %-16s %s\n", REL_HDR);
2819 	}
2820 	assert(d->d_size == s->sz);
2821 	if (!get_ent_count(s, &len))
2822 		return;
2823 	for (i = 0; i < len; i++) {
2824 		if (gelf_getrel(d, i, &r) != &r) {
2825 			warnx("gelf_getrel failed: %s", elf_errmsg(-1));
2826 			continue;
2827 		}
2828 		symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info));
2829 		symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info));
2830 		if (re->ec == ELFCLASS32) {
2831 			r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info),
2832 			    ELF64_R_TYPE(r.r_info));
2833 			printf("%8.8jx %8.8jx %-19.19s %8.8jx %s\n", REL_CT32);
2834 		} else {
2835 			type = ELF64_R_TYPE(r.r_info);
2836 			if (re->ehdr.e_machine == EM_MIPS) {
2837 				type2 = (type >> 8) & 0xFF;
2838 				type3 = (type >> 16) & 0xFF;
2839 				type = type & 0xFF;
2840 			} else {
2841 				type2 = type3 = 0;
2842 			}
2843 			if (re->options & RE_WW)
2844 				printf("%16.16jx %16.16jx %-24.24s"
2845 				    " %16.16jx %s\n", REL_CT64);
2846 			else
2847 				printf("%12.12jx %12.12jx %-19.19s"
2848 				    " %16.16jx %s\n", REL_CT64);
2849 			if (re->ehdr.e_machine == EM_MIPS) {
2850 				if (re->options & RE_WW) {
2851 					printf("%32s: %s\n", "Type2",
2852 					    elftc_reloc_type_str(EM_MIPS,
2853 					    type2));
2854 					printf("%32s: %s\n", "Type3",
2855 					    elftc_reloc_type_str(EM_MIPS,
2856 					    type3));
2857 				} else {
2858 					printf("%24s: %s\n", "Type2",
2859 					    elftc_reloc_type_str(EM_MIPS,
2860 					    type2));
2861 					printf("%24s: %s\n", "Type3",
2862 					    elftc_reloc_type_str(EM_MIPS,
2863 					    type3));
2864 				}
2865 			}
2866 		}
2867 	}
2868 
2869 #undef	REL_HDR
2870 #undef	REL_CT
2871 }
2872 
2873 static void
2874 dump_rela(struct readelf *re, struct section *s, Elf_Data *d)
2875 {
2876 	GElf_Rela r;
2877 	const char *symname;
2878 	uint64_t symval;
2879 	int i, len;
2880 	uint32_t type;
2881 	uint8_t type2, type3;
2882 
2883 	if (s->link >= re->shnum)
2884 		return;
2885 
2886 #define	RELA_HDR "r_offset", "r_info", "r_type", "st_value", \
2887 		"st_name + r_addend"
2888 #define	RELA_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,	    \
2889 		elftc_reloc_type_str(re->ehdr.e_machine,	    \
2890 		ELF32_R_TYPE(r.r_info)), (uintmax_t)symval, symname
2891 #define	RELA_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,	    \
2892 		elftc_reloc_type_str(re->ehdr.e_machine, type),	    \
2893 		(uintmax_t)symval, symname
2894 
2895 	printf("\nRelocation section with addend (%s):\n", s->name);
2896 	if (re->ec == ELFCLASS32)
2897 		printf("%-8s %-8s %-19s %-8s %s\n", RELA_HDR);
2898 	else {
2899 		if (re->options & RE_WW)
2900 			printf("%-16s %-16s %-24s %-16s %s\n", RELA_HDR);
2901 		else
2902 			printf("%-12s %-12s %-19s %-16s %s\n", RELA_HDR);
2903 	}
2904 	assert(d->d_size == s->sz);
2905 	if (!get_ent_count(s, &len))
2906 		return;
2907 	for (i = 0; i < len; i++) {
2908 		if (gelf_getrela(d, i, &r) != &r) {
2909 			warnx("gelf_getrel failed: %s", elf_errmsg(-1));
2910 			continue;
2911 		}
2912 		symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info));
2913 		symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info));
2914 		if (re->ec == ELFCLASS32) {
2915 			r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info),
2916 			    ELF64_R_TYPE(r.r_info));
2917 			printf("%8.8jx %8.8jx %-19.19s %8.8jx %s", RELA_CT32);
2918 			printf(" + %x\n", (uint32_t) r.r_addend);
2919 		} else {
2920 			type = ELF64_R_TYPE(r.r_info);
2921 			if (re->ehdr.e_machine == EM_MIPS) {
2922 				type2 = (type >> 8) & 0xFF;
2923 				type3 = (type >> 16) & 0xFF;
2924 				type = type & 0xFF;
2925 			} else {
2926 				type2 = type3 = 0;
2927 			}
2928 			if (re->options & RE_WW)
2929 				printf("%16.16jx %16.16jx %-24.24s"
2930 				    " %16.16jx %s", RELA_CT64);
2931 			else
2932 				printf("%12.12jx %12.12jx %-19.19s"
2933 				    " %16.16jx %s", RELA_CT64);
2934 			printf(" + %jx\n", (uintmax_t) r.r_addend);
2935 			if (re->ehdr.e_machine == EM_MIPS) {
2936 				if (re->options & RE_WW) {
2937 					printf("%32s: %s\n", "Type2",
2938 					    elftc_reloc_type_str(EM_MIPS,
2939 					    type2));
2940 					printf("%32s: %s\n", "Type3",
2941 					    elftc_reloc_type_str(EM_MIPS,
2942 					    type3));
2943 				} else {
2944 					printf("%24s: %s\n", "Type2",
2945 					    elftc_reloc_type_str(EM_MIPS,
2946 					    type2));
2947 					printf("%24s: %s\n", "Type3",
2948 					    elftc_reloc_type_str(EM_MIPS,
2949 					    type3));
2950 				}
2951 			}
2952 		}
2953 	}
2954 
2955 #undef	RELA_HDR
2956 #undef	RELA_CT
2957 }
2958 
2959 static void
2960 dump_reloc(struct readelf *re)
2961 {
2962 	struct section *s;
2963 	Elf_Data *d;
2964 	int i, elferr;
2965 
2966 	for (i = 0; (size_t)i < re->shnum; i++) {
2967 		s = &re->sl[i];
2968 		if (s->type == SHT_REL || s->type == SHT_RELA) {
2969 			(void) elf_errno();
2970 			if ((d = elf_getdata(s->scn, NULL)) == NULL) {
2971 				elferr = elf_errno();
2972 				if (elferr != 0)
2973 					warnx("elf_getdata failed: %s",
2974 					    elf_errmsg(elferr));
2975 				continue;
2976 			}
2977 			if (s->type == SHT_REL)
2978 				dump_rel(re, s, d);
2979 			else
2980 				dump_rela(re, s, d);
2981 		}
2982 	}
2983 }
2984 
2985 static void
2986 dump_symtab(struct readelf *re, int i)
2987 {
2988 	struct section *s;
2989 	Elf_Data *d;
2990 	GElf_Sym sym;
2991 	const char *name;
2992 	uint32_t stab;
2993 	int elferr, j, len;
2994 	uint16_t vs;
2995 
2996 	s = &re->sl[i];
2997 	if (s->link >= re->shnum)
2998 		return;
2999 	stab = s->link;
3000 	(void) elf_errno();
3001 	if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3002 		elferr = elf_errno();
3003 		if (elferr != 0)
3004 			warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3005 		return;
3006 	}
3007 	if (d->d_size <= 0)
3008 		return;
3009 	if (!get_ent_count(s, &len))
3010 		return;
3011 	printf("Symbol table (%s)", s->name);
3012 	printf(" contains %d entries:\n", len);
3013 	printf("%7s%9s%14s%5s%8s%6s%9s%5s\n", "Num:", "Value", "Size", "Type",
3014 	    "Bind", "Vis", "Ndx", "Name");
3015 
3016 	for (j = 0; j < len; j++) {
3017 		if (gelf_getsym(d, j, &sym) != &sym) {
3018 			warnx("gelf_getsym failed: %s", elf_errmsg(-1));
3019 			continue;
3020 		}
3021 		printf("%6d:", j);
3022 		printf(" %16.16jx", (uintmax_t) sym.st_value);
3023 		printf(" %5ju", (uintmax_t) sym.st_size);
3024 		printf(" %-7s", st_type(re->ehdr.e_machine,
3025 		    re->ehdr.e_ident[EI_OSABI], GELF_ST_TYPE(sym.st_info)));
3026 		printf(" %-6s", st_bind(GELF_ST_BIND(sym.st_info)));
3027 		printf(" %-8s", st_vis(GELF_ST_VISIBILITY(sym.st_other)));
3028 		printf(" %3s", st_shndx(sym.st_shndx));
3029 		if ((name = elf_strptr(re->elf, stab, sym.st_name)) != NULL)
3030 			printf(" %s", name);
3031 		/* Append symbol version string for SHT_DYNSYM symbol table. */
3032 		if (s->type == SHT_DYNSYM && re->ver != NULL &&
3033 		    re->vs != NULL && re->vs[j] > 1) {
3034 			vs = re->vs[j] & VERSYM_VERSION;
3035 			if (vs >= re->ver_sz || re->ver[vs].name == NULL) {
3036 				warnx("invalid versym version index %u", vs);
3037 				break;
3038 			}
3039 			if (re->vs[j] & VERSYM_HIDDEN || re->ver[vs].type == 0)
3040 				printf("@%s (%d)", re->ver[vs].name, vs);
3041 			else
3042 				printf("@@%s (%d)", re->ver[vs].name, vs);
3043 		}
3044 		putchar('\n');
3045 	}
3046 
3047 }
3048 
3049 static void
3050 dump_symtabs(struct readelf *re)
3051 {
3052 	GElf_Dyn dyn;
3053 	Elf_Data *d;
3054 	struct section *s;
3055 	uint64_t dyn_off;
3056 	int elferr, i, len;
3057 
3058 	/*
3059 	 * If -D is specified, only dump the symbol table specified by
3060 	 * the DT_SYMTAB entry in the .dynamic section.
3061 	 */
3062 	dyn_off = 0;
3063 	if (re->options & RE_DD) {
3064 		s = NULL;
3065 		for (i = 0; (size_t)i < re->shnum; i++)
3066 			if (re->sl[i].type == SHT_DYNAMIC) {
3067 				s = &re->sl[i];
3068 				break;
3069 			}
3070 		if (s == NULL)
3071 			return;
3072 		(void) elf_errno();
3073 		if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3074 			elferr = elf_errno();
3075 			if (elferr != 0)
3076 				warnx("elf_getdata failed: %s", elf_errmsg(-1));
3077 			return;
3078 		}
3079 		if (d->d_size <= 0)
3080 			return;
3081 		if (!get_ent_count(s, &len))
3082 			return;
3083 
3084 		for (i = 0; i < len; i++) {
3085 			if (gelf_getdyn(d, i, &dyn) != &dyn) {
3086 				warnx("gelf_getdyn failed: %s", elf_errmsg(-1));
3087 				continue;
3088 			}
3089 			if (dyn.d_tag == DT_SYMTAB) {
3090 				dyn_off = dyn.d_un.d_val;
3091 				break;
3092 			}
3093 		}
3094 	}
3095 
3096 	/* Find and dump symbol tables. */
3097 	for (i = 0; (size_t)i < re->shnum; i++) {
3098 		s = &re->sl[i];
3099 		if (s->type == SHT_SYMTAB || s->type == SHT_DYNSYM) {
3100 			if (re->options & RE_DD) {
3101 				if (dyn_off == s->addr) {
3102 					dump_symtab(re, i);
3103 					break;
3104 				}
3105 			} else
3106 				dump_symtab(re, i);
3107 		}
3108 	}
3109 }
3110 
3111 static void
3112 dump_svr4_hash(struct section *s)
3113 {
3114 	Elf_Data	*d;
3115 	uint32_t	*buf;
3116 	uint32_t	 nbucket, nchain;
3117 	uint32_t	*bucket, *chain;
3118 	uint32_t	*bl, *c, maxl, total;
3119 	int		 elferr, i, j;
3120 
3121 	/* Read and parse the content of .hash section. */
3122 	(void) elf_errno();
3123 	if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3124 		elferr = elf_errno();
3125 		if (elferr != 0)
3126 			warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3127 		return;
3128 	}
3129 	if (d->d_size < 2 * sizeof(uint32_t)) {
3130 		warnx(".hash section too small");
3131 		return;
3132 	}
3133 	buf = d->d_buf;
3134 	nbucket = buf[0];
3135 	nchain = buf[1];
3136 	if (nbucket <= 0 || nchain <= 0) {
3137 		warnx("Malformed .hash section");
3138 		return;
3139 	}
3140 	if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) {
3141 		warnx("Malformed .hash section");
3142 		return;
3143 	}
3144 	bucket = &buf[2];
3145 	chain = &buf[2 + nbucket];
3146 
3147 	maxl = 0;
3148 	if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3149 		errx(EXIT_FAILURE, "calloc failed");
3150 	for (i = 0; (uint32_t)i < nbucket; i++)
3151 		for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j])
3152 			if (++bl[i] > maxl)
3153 				maxl = bl[i];
3154 	if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3155 		errx(EXIT_FAILURE, "calloc failed");
3156 	for (i = 0; (uint32_t)i < nbucket; i++)
3157 		c[bl[i]]++;
3158 	printf("\nHistogram for bucket list length (total of %u buckets):\n",
3159 	    nbucket);
3160 	printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3161 	total = 0;
3162 	for (i = 0; (uint32_t)i <= maxl; i++) {
3163 		total += c[i] * i;
3164 		printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i],
3165 		    c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3166 	}
3167 	free(c);
3168 	free(bl);
3169 }
3170 
3171 static void
3172 dump_svr4_hash64(struct readelf *re, struct section *s)
3173 {
3174 	Elf_Data	*d, dst;
3175 	uint64_t	*buf;
3176 	uint64_t	 nbucket, nchain;
3177 	uint64_t	*bucket, *chain;
3178 	uint64_t	*bl, *c, maxl, total;
3179 	int		 elferr, i, j;
3180 
3181 	/*
3182 	 * ALPHA uses 64-bit hash entries. Since libelf assumes that
3183 	 * .hash section contains only 32-bit entry, an explicit
3184 	 * gelf_xlatetom is needed here.
3185 	 */
3186 	(void) elf_errno();
3187 	if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
3188 		elferr = elf_errno();
3189 		if (elferr != 0)
3190 			warnx("elf_rawdata failed: %s",
3191 			    elf_errmsg(elferr));
3192 		return;
3193 	}
3194 	d->d_type = ELF_T_XWORD;
3195 	memcpy(&dst, d, sizeof(Elf_Data));
3196 	if (gelf_xlatetom(re->elf, &dst, d,
3197 		re->ehdr.e_ident[EI_DATA]) != &dst) {
3198 		warnx("gelf_xlatetom failed: %s", elf_errmsg(-1));
3199 		return;
3200 	}
3201 	if (dst.d_size < 2 * sizeof(uint64_t)) {
3202 		warnx(".hash section too small");
3203 		return;
3204 	}
3205 	buf = dst.d_buf;
3206 	nbucket = buf[0];
3207 	nchain = buf[1];
3208 	if (nbucket <= 0 || nchain <= 0) {
3209 		warnx("Malformed .hash section");
3210 		return;
3211 	}
3212 	if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) {
3213 		warnx("Malformed .hash section");
3214 		return;
3215 	}
3216 	bucket = &buf[2];
3217 	chain = &buf[2 + nbucket];
3218 
3219 	maxl = 0;
3220 	if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3221 		errx(EXIT_FAILURE, "calloc failed");
3222 	for (i = 0; (uint32_t)i < nbucket; i++)
3223 		for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j])
3224 			if (++bl[i] > maxl)
3225 				maxl = bl[i];
3226 	if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3227 		errx(EXIT_FAILURE, "calloc failed");
3228 	for (i = 0; (uint64_t)i < nbucket; i++)
3229 		c[bl[i]]++;
3230 	printf("Histogram for bucket list length (total of %ju buckets):\n",
3231 	    (uintmax_t)nbucket);
3232 	printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3233 	total = 0;
3234 	for (i = 0; (uint64_t)i <= maxl; i++) {
3235 		total += c[i] * i;
3236 		printf("%7u\t%-10ju\t(%5.1f%%)\t%5.1f%%\n", i, (uintmax_t)c[i],
3237 		    c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3238 	}
3239 	free(c);
3240 	free(bl);
3241 }
3242 
3243 static void
3244 dump_gnu_hash(struct readelf *re, struct section *s)
3245 {
3246 	struct section	*ds;
3247 	Elf_Data	*d;
3248 	uint32_t	*buf;
3249 	uint32_t	*bucket, *chain;
3250 	uint32_t	 nbucket, nchain, symndx, maskwords;
3251 	uint32_t	*bl, *c, maxl, total;
3252 	int		 elferr, dynsymcount, i, j;
3253 
3254 	(void) elf_errno();
3255 	if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3256 		elferr = elf_errno();
3257 		if (elferr != 0)
3258 			warnx("elf_getdata failed: %s",
3259 			    elf_errmsg(elferr));
3260 		return;
3261 	}
3262 	if (d->d_size < 4 * sizeof(uint32_t)) {
3263 		warnx(".gnu.hash section too small");
3264 		return;
3265 	}
3266 	buf = d->d_buf;
3267 	nbucket = buf[0];
3268 	symndx = buf[1];
3269 	maskwords = buf[2];
3270 	buf += 4;
3271 	if (s->link >= re->shnum)
3272 		return;
3273 	ds = &re->sl[s->link];
3274 	if (!get_ent_count(ds, &dynsymcount))
3275 		return;
3276 	if (symndx >= (uint32_t)dynsymcount) {
3277 		warnx("Malformed .gnu.hash section (symndx out of range)");
3278 		return;
3279 	}
3280 	nchain = dynsymcount - symndx;
3281 	if (d->d_size != 4 * sizeof(uint32_t) + maskwords *
3282 	    (re->ec == ELFCLASS32 ? sizeof(uint32_t) : sizeof(uint64_t)) +
3283 	    (nbucket + nchain) * sizeof(uint32_t)) {
3284 		warnx("Malformed .gnu.hash section");
3285 		return;
3286 	}
3287 	bucket = buf + (re->ec == ELFCLASS32 ? maskwords : maskwords * 2);
3288 	chain = bucket + nbucket;
3289 
3290 	maxl = 0;
3291 	if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3292 		errx(EXIT_FAILURE, "calloc failed");
3293 	for (i = 0; (uint32_t)i < nbucket; i++)
3294 		for (j = bucket[i]; j > 0 && (uint32_t)j - symndx < nchain;
3295 		     j++) {
3296 			if (++bl[i] > maxl)
3297 				maxl = bl[i];
3298 			if (chain[j - symndx] & 1)
3299 				break;
3300 		}
3301 	if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3302 		errx(EXIT_FAILURE, "calloc failed");
3303 	for (i = 0; (uint32_t)i < nbucket; i++)
3304 		c[bl[i]]++;
3305 	printf("Histogram for bucket list length (total of %u buckets):\n",
3306 	    nbucket);
3307 	printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3308 	total = 0;
3309 	for (i = 0; (uint32_t)i <= maxl; i++) {
3310 		total += c[i] * i;
3311 		printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i],
3312 		    c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3313 	}
3314 	free(c);
3315 	free(bl);
3316 }
3317 
3318 static void
3319 dump_hash(struct readelf *re)
3320 {
3321 	struct section	*s;
3322 	int		 i;
3323 
3324 	for (i = 0; (size_t) i < re->shnum; i++) {
3325 		s = &re->sl[i];
3326 		if (s->type == SHT_HASH || s->type == SHT_GNU_HASH) {
3327 			if (s->type == SHT_GNU_HASH)
3328 				dump_gnu_hash(re, s);
3329 			else if (re->ehdr.e_machine == EM_ALPHA &&
3330 			    s->entsize == 8)
3331 				dump_svr4_hash64(re, s);
3332 			else
3333 				dump_svr4_hash(s);
3334 		}
3335 	}
3336 }
3337 
3338 static void
3339 dump_notes(struct readelf *re)
3340 {
3341 	struct section *s;
3342 	const char *rawfile;
3343 	GElf_Phdr phdr;
3344 	Elf_Data *d;
3345 	size_t filesize, phnum;
3346 	int i, elferr;
3347 
3348 	if (re->ehdr.e_type == ET_CORE) {
3349 		/*
3350 		 * Search program headers in the core file for
3351 		 * PT_NOTE entry.
3352 		 */
3353 		if (elf_getphnum(re->elf, &phnum) == 0) {
3354 			warnx("elf_getphnum failed: %s", elf_errmsg(-1));
3355 			return;
3356 		}
3357 		if (phnum == 0)
3358 			return;
3359 		if ((rawfile = elf_rawfile(re->elf, &filesize)) == NULL) {
3360 			warnx("elf_rawfile failed: %s", elf_errmsg(-1));
3361 			return;
3362 		}
3363 		for (i = 0; (size_t) i < phnum; i++) {
3364 			if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
3365 				warnx("gelf_getphdr failed: %s",
3366 				    elf_errmsg(-1));
3367 				continue;
3368 			}
3369 			if (phdr.p_type == PT_NOTE) {
3370 				if (phdr.p_offset >= filesize ||
3371 				    phdr.p_filesz > filesize - phdr.p_offset) {
3372 					warnx("invalid PHDR offset");
3373 					continue;
3374 				}
3375 				dump_notes_content(re, rawfile + phdr.p_offset,
3376 				    phdr.p_filesz, phdr.p_offset);
3377 			}
3378 		}
3379 
3380 	} else {
3381 		/*
3382 		 * For objects other than core files, Search for
3383 		 * SHT_NOTE sections.
3384 		 */
3385 		for (i = 0; (size_t) i < re->shnum; i++) {
3386 			s = &re->sl[i];
3387 			if (s->type == SHT_NOTE) {
3388 				(void) elf_errno();
3389 				if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3390 					elferr = elf_errno();
3391 					if (elferr != 0)
3392 						warnx("elf_getdata failed: %s",
3393 						    elf_errmsg(elferr));
3394 					continue;
3395 				}
3396 				dump_notes_content(re, d->d_buf, d->d_size,
3397 				    s->off);
3398 			}
3399 		}
3400 	}
3401 }
3402 
3403 static void
3404 dump_notes_content(struct readelf *re, const char *buf, size_t sz, off_t off)
3405 {
3406 	Elf_Note *note;
3407 	const char *end, *name;
3408 
3409 	printf("\nNotes at offset %#010jx with length %#010jx:\n",
3410 	    (uintmax_t) off, (uintmax_t) sz);
3411 	printf("  %-13s %-15s %s\n", "Owner", "Data size", "Description");
3412 	end = buf + sz;
3413 	while (buf < end) {
3414 		if (buf + sizeof(*note) > end) {
3415 			warnx("invalid note header");
3416 			return;
3417 		}
3418 		note = (Elf_Note *)(uintptr_t) buf;
3419 		name = (char *)(uintptr_t)(note + 1);
3420 		/*
3421 		 * The name field is required to be nul-terminated, and
3422 		 * n_namesz includes the terminating nul in observed
3423 		 * implementations (contrary to the ELF-64 spec). A special
3424 		 * case is needed for cores generated by some older Linux
3425 		 * versions, which write a note named "CORE" without a nul
3426 		 * terminator and n_namesz = 4.
3427 		 */
3428 		if (note->n_namesz == 0)
3429 			name = "";
3430 		else if (note->n_namesz == 4 && strncmp(name, "CORE", 4) == 0)
3431 			name = "CORE";
3432 		else if (strnlen(name, note->n_namesz) >= note->n_namesz)
3433 			name = "<invalid>";
3434 		printf("  %-13s %#010jx", name, (uintmax_t) note->n_descsz);
3435 		printf("      %s\n", note_type(name, re->ehdr.e_type,
3436 		    note->n_type));
3437 		buf += sizeof(Elf_Note) + roundup2(note->n_namesz, 4) +
3438 		    roundup2(note->n_descsz, 4);
3439 	}
3440 }
3441 
3442 /*
3443  * Symbol versioning sections are the same for 32bit and 64bit
3444  * ELF objects.
3445  */
3446 #define Elf_Verdef	Elf32_Verdef
3447 #define	Elf_Verdaux	Elf32_Verdaux
3448 #define	Elf_Verneed	Elf32_Verneed
3449 #define	Elf_Vernaux	Elf32_Vernaux
3450 
3451 #define	SAVE_VERSION_NAME(x, n, t)					\
3452 	do {								\
3453 		while (x >= re->ver_sz) {				\
3454 			nv = realloc(re->ver,				\
3455 			    sizeof(*re->ver) * re->ver_sz * 2);		\
3456 			if (nv == NULL) {				\
3457 				warn("realloc failed");			\
3458 				free(re->ver);				\
3459 				return;					\
3460 			}						\
3461 			re->ver = nv;					\
3462 			for (i = re->ver_sz; i < re->ver_sz * 2; i++) {	\
3463 				re->ver[i].name = NULL;			\
3464 				re->ver[i].type = 0;			\
3465 			}						\
3466 			re->ver_sz *= 2;				\
3467 		}							\
3468 		if (x > 1) {						\
3469 			re->ver[x].name = n;				\
3470 			re->ver[x].type = t;				\
3471 		}							\
3472 	} while (0)
3473 
3474 
3475 static void
3476 dump_verdef(struct readelf *re, int dump)
3477 {
3478 	struct section *s;
3479 	struct symver *nv;
3480 	Elf_Data *d;
3481 	Elf_Verdef *vd;
3482 	Elf_Verdaux *vda;
3483 	uint8_t *buf, *end, *buf2;
3484 	const char *name;
3485 	int elferr, i, j;
3486 
3487 	if ((s = re->vd_s) == NULL)
3488 		return;
3489 	if (s->link >= re->shnum)
3490 		return;
3491 
3492 	if (re->ver == NULL) {
3493 		re->ver_sz = 16;
3494 		if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) ==
3495 		    NULL) {
3496 			warn("calloc failed");
3497 			return;
3498 		}
3499 		re->ver[0].name = "*local*";
3500 		re->ver[1].name = "*global*";
3501 	}
3502 
3503 	if (dump)
3504 		printf("\nVersion definition section (%s):\n", s->name);
3505 	(void) elf_errno();
3506 	if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3507 		elferr = elf_errno();
3508 		if (elferr != 0)
3509 			warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3510 		return;
3511 	}
3512 	if (d->d_size == 0)
3513 		return;
3514 
3515 	buf = d->d_buf;
3516 	end = buf + d->d_size;
3517 	while (buf + sizeof(Elf_Verdef) <= end) {
3518 		vd = (Elf_Verdef *) (uintptr_t) buf;
3519 		if (dump) {
3520 			printf("  0x%4.4lx", (unsigned long)
3521 			    (buf - (uint8_t *)d->d_buf));
3522 			printf(" vd_version: %u vd_flags: %d"
3523 			    " vd_ndx: %u vd_cnt: %u", vd->vd_version,
3524 			    vd->vd_flags, vd->vd_ndx, vd->vd_cnt);
3525 		}
3526 		buf2 = buf + vd->vd_aux;
3527 		j = 0;
3528 		while (buf2 + sizeof(Elf_Verdaux) <= end && j < vd->vd_cnt) {
3529 			vda = (Elf_Verdaux *) (uintptr_t) buf2;
3530 			name = get_string(re, s->link, vda->vda_name);
3531 			if (j == 0) {
3532 				if (dump)
3533 					printf(" vda_name: %s\n", name);
3534 				SAVE_VERSION_NAME((int)vd->vd_ndx, name, 1);
3535 			} else if (dump)
3536 				printf("  0x%4.4lx parent: %s\n",
3537 				    (unsigned long) (buf2 -
3538 				    (uint8_t *)d->d_buf), name);
3539 			if (vda->vda_next == 0)
3540 				break;
3541 			buf2 += vda->vda_next;
3542 			j++;
3543 		}
3544 		if (vd->vd_next == 0)
3545 			break;
3546 		buf += vd->vd_next;
3547 	}
3548 }
3549 
3550 static void
3551 dump_verneed(struct readelf *re, int dump)
3552 {
3553 	struct section *s;
3554 	struct symver *nv;
3555 	Elf_Data *d;
3556 	Elf_Verneed *vn;
3557 	Elf_Vernaux *vna;
3558 	uint8_t *buf, *end, *buf2;
3559 	const char *name;
3560 	int elferr, i, j;
3561 
3562 	if ((s = re->vn_s) == NULL)
3563 		return;
3564 	if (s->link >= re->shnum)
3565 		return;
3566 
3567 	if (re->ver == NULL) {
3568 		re->ver_sz = 16;
3569 		if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) ==
3570 		    NULL) {
3571 			warn("calloc failed");
3572 			return;
3573 		}
3574 		re->ver[0].name = "*local*";
3575 		re->ver[1].name = "*global*";
3576 	}
3577 
3578 	if (dump)
3579 		printf("\nVersion needed section (%s):\n", s->name);
3580 	(void) elf_errno();
3581 	if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3582 		elferr = elf_errno();
3583 		if (elferr != 0)
3584 			warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3585 		return;
3586 	}
3587 	if (d->d_size == 0)
3588 		return;
3589 
3590 	buf = d->d_buf;
3591 	end = buf + d->d_size;
3592 	while (buf + sizeof(Elf_Verneed) <= end) {
3593 		vn = (Elf_Verneed *) (uintptr_t) buf;
3594 		if (dump) {
3595 			printf("  0x%4.4lx", (unsigned long)
3596 			    (buf - (uint8_t *)d->d_buf));
3597 			printf(" vn_version: %u vn_file: %s vn_cnt: %u\n",
3598 			    vn->vn_version,
3599 			    get_string(re, s->link, vn->vn_file),
3600 			    vn->vn_cnt);
3601 		}
3602 		buf2 = buf + vn->vn_aux;
3603 		j = 0;
3604 		while (buf2 + sizeof(Elf_Vernaux) <= end && j < vn->vn_cnt) {
3605 			vna = (Elf32_Vernaux *) (uintptr_t) buf2;
3606 			if (dump)
3607 				printf("  0x%4.4lx", (unsigned long)
3608 				    (buf2 - (uint8_t *)d->d_buf));
3609 			name = get_string(re, s->link, vna->vna_name);
3610 			if (dump)
3611 				printf("   vna_name: %s vna_flags: %u"
3612 				    " vna_other: %u\n", name,
3613 				    vna->vna_flags, vna->vna_other);
3614 			SAVE_VERSION_NAME((int)vna->vna_other, name, 0);
3615 			if (vna->vna_next == 0)
3616 				break;
3617 			buf2 += vna->vna_next;
3618 			j++;
3619 		}
3620 		if (vn->vn_next == 0)
3621 			break;
3622 		buf += vn->vn_next;
3623 	}
3624 }
3625 
3626 static void
3627 dump_versym(struct readelf *re)
3628 {
3629 	int i;
3630 	uint16_t vs;
3631 
3632 	if (re->vs_s == NULL || re->ver == NULL || re->vs == NULL)
3633 		return;
3634 	printf("\nVersion symbol section (%s):\n", re->vs_s->name);
3635 	for (i = 0; i < re->vs_sz; i++) {
3636 		if ((i & 3) == 0) {
3637 			if (i > 0)
3638 				putchar('\n');
3639 			printf("  %03x:", i);
3640 		}
3641 		vs = re->vs[i] & VERSYM_VERSION;
3642 		if (vs >= re->ver_sz || re->ver[vs].name == NULL) {
3643 			warnx("invalid versym version index %u", re->vs[i]);
3644 			break;
3645 		}
3646 		if (re->vs[i] & VERSYM_HIDDEN)
3647 			printf(" %3xh %-12s ", vs,
3648 			    re->ver[re->vs[i] & VERSYM_VERSION].name);
3649 		else
3650 			printf(" %3x %-12s ", vs, re->ver[re->vs[i]].name);
3651 	}
3652 	putchar('\n');
3653 }
3654 
3655 static void
3656 dump_ver(struct readelf *re)
3657 {
3658 
3659 	if (re->vs_s && re->ver && re->vs)
3660 		dump_versym(re);
3661 	if (re->vd_s)
3662 		dump_verdef(re, 1);
3663 	if (re->vn_s)
3664 		dump_verneed(re, 1);
3665 }
3666 
3667 static void
3668 search_ver(struct readelf *re)
3669 {
3670 	struct section *s;
3671 	Elf_Data *d;
3672 	int elferr, i;
3673 
3674 	for (i = 0; (size_t) i < re->shnum; i++) {
3675 		s = &re->sl[i];
3676 		if (s->type == SHT_SUNW_versym)
3677 			re->vs_s = s;
3678 		if (s->type == SHT_SUNW_verneed)
3679 			re->vn_s = s;
3680 		if (s->type == SHT_SUNW_verdef)
3681 			re->vd_s = s;
3682 	}
3683 	if (re->vd_s)
3684 		dump_verdef(re, 0);
3685 	if (re->vn_s)
3686 		dump_verneed(re, 0);
3687 	if (re->vs_s && re->ver != NULL) {
3688 		(void) elf_errno();
3689 		if ((d = elf_getdata(re->vs_s->scn, NULL)) == NULL) {
3690 			elferr = elf_errno();
3691 			if (elferr != 0)
3692 				warnx("elf_getdata failed: %s",
3693 				    elf_errmsg(elferr));
3694 			return;
3695 		}
3696 		if (d->d_size == 0)
3697 			return;
3698 		re->vs = d->d_buf;
3699 		re->vs_sz = d->d_size / sizeof(Elf32_Half);
3700 	}
3701 }
3702 
3703 #undef	Elf_Verdef
3704 #undef	Elf_Verdaux
3705 #undef	Elf_Verneed
3706 #undef	Elf_Vernaux
3707 #undef	SAVE_VERSION_NAME
3708 
3709 /*
3710  * Elf32_Lib and Elf64_Lib are identical.
3711  */
3712 #define	Elf_Lib		Elf32_Lib
3713 
3714 static void
3715 dump_liblist(struct readelf *re)
3716 {
3717 	struct section *s;
3718 	struct tm *t;
3719 	time_t ti;
3720 	char tbuf[20];
3721 	Elf_Data *d;
3722 	Elf_Lib *lib;
3723 	int i, j, k, elferr, first, len;
3724 
3725 	for (i = 0; (size_t) i < re->shnum; i++) {
3726 		s = &re->sl[i];
3727 		if (s->type != SHT_GNU_LIBLIST)
3728 			continue;
3729 		if (s->link >= re->shnum)
3730 			continue;
3731 		(void) elf_errno();
3732 		if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3733 			elferr = elf_errno();
3734 			if (elferr != 0)
3735 				warnx("elf_getdata failed: %s",
3736 				    elf_errmsg(elferr));
3737 			continue;
3738 		}
3739 		if (d->d_size <= 0)
3740 			continue;
3741 		lib = d->d_buf;
3742 		if (!get_ent_count(s, &len))
3743 			continue;
3744 		printf("\nLibrary list section '%s' ", s->name);
3745 		printf("contains %d entries:\n", len);
3746 		printf("%12s%24s%18s%10s%6s\n", "Library", "Time Stamp",
3747 		    "Checksum", "Version", "Flags");
3748 		for (j = 0; (uint64_t) j < s->sz / s->entsize; j++) {
3749 			printf("%3d: ", j);
3750 			printf("%-20.20s ",
3751 			    get_string(re, s->link, lib->l_name));
3752 			ti = lib->l_time_stamp;
3753 			t = gmtime(&ti);
3754 			snprintf(tbuf, sizeof(tbuf), "%04d-%02d-%02dT%02d:%02d"
3755 			    ":%2d", t->tm_year + 1900, t->tm_mon + 1,
3756 			    t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
3757 			printf("%-19.19s ", tbuf);
3758 			printf("0x%08x ", lib->l_checksum);
3759 			printf("%-7d %#x", lib->l_version, lib->l_flags);
3760 			if (lib->l_flags != 0) {
3761 				first = 1;
3762 				putchar('(');
3763 				for (k = 0; l_flag[k].name != NULL; k++) {
3764 					if ((l_flag[k].value & lib->l_flags) ==
3765 					    0)
3766 						continue;
3767 					if (!first)
3768 						putchar(',');
3769 					else
3770 						first = 0;
3771 					printf("%s", l_flag[k].name);
3772 				}
3773 				putchar(')');
3774 			}
3775 			putchar('\n');
3776 			lib++;
3777 		}
3778 	}
3779 }
3780 
3781 #undef Elf_Lib
3782 
3783 static void
3784 dump_section_groups(struct readelf *re)
3785 {
3786 	struct section *s;
3787 	const char *symname;
3788 	Elf_Data *d;
3789 	uint32_t *w;
3790 	int i, j, elferr;
3791 	size_t n;
3792 
3793 	for (i = 0; (size_t) i < re->shnum; i++) {
3794 		s = &re->sl[i];
3795 		if (s->type != SHT_GROUP)
3796 			continue;
3797 		if (s->link >= re->shnum)
3798 			continue;
3799 		(void) elf_errno();
3800 		if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3801 			elferr = elf_errno();
3802 			if (elferr != 0)
3803 				warnx("elf_getdata failed: %s",
3804 				    elf_errmsg(elferr));
3805 			continue;
3806 		}
3807 		if (d->d_size <= 0)
3808 			continue;
3809 
3810 		w = d->d_buf;
3811 
3812 		/* We only support COMDAT section. */
3813 #ifndef GRP_COMDAT
3814 #define	GRP_COMDAT 0x1
3815 #endif
3816 		if ((*w++ & GRP_COMDAT) == 0)
3817 			return;
3818 
3819 		if (s->entsize == 0)
3820 			s->entsize = 4;
3821 
3822 		symname = get_symbol_name(re, s->link, s->info);
3823 		n = s->sz / s->entsize;
3824 		if (n-- < 1)
3825 			return;
3826 
3827 		printf("\nCOMDAT group section [%5d] `%s' [%s] contains %ju"
3828 		    " sections:\n", i, s->name, symname, (uintmax_t)n);
3829 		printf("   %-10.10s %s\n", "[Index]", "Name");
3830 		for (j = 0; (size_t) j < n; j++, w++) {
3831 			if (*w >= re->shnum) {
3832 				warnx("invalid section index: %u", *w);
3833 				continue;
3834 			}
3835 			printf("   [%5u]   %s\n", *w, re->sl[*w].name);
3836 		}
3837 	}
3838 }
3839 
3840 static uint8_t *
3841 dump_unknown_tag(uint64_t tag, uint8_t *p, uint8_t *pe)
3842 {
3843 	uint64_t val;
3844 
3845 	/*
3846 	 * According to ARM EABI: For tags > 32, even numbered tags have
3847 	 * a ULEB128 param and odd numbered ones have NUL-terminated
3848 	 * string param. This rule probably also applies for tags <= 32
3849 	 * if the object arch is not ARM.
3850 	 */
3851 
3852 	printf("  Tag_unknown_%ju: ", (uintmax_t) tag);
3853 
3854 	if (tag & 1) {
3855 		printf("%s\n", (char *) p);
3856 		p += strlen((char *) p) + 1;
3857 	} else {
3858 		val = _decode_uleb128(&p, pe);
3859 		printf("%ju\n", (uintmax_t) val);
3860 	}
3861 
3862 	return (p);
3863 }
3864 
3865 static uint8_t *
3866 dump_compatibility_tag(uint8_t *p, uint8_t *pe)
3867 {
3868 	uint64_t val;
3869 
3870 	val = _decode_uleb128(&p, pe);
3871 	printf("flag = %ju, vendor = %s\n", (uintmax_t) val, p);
3872 	p += strlen((char *) p) + 1;
3873 
3874 	return (p);
3875 }
3876 
3877 static void
3878 dump_arm_attributes(struct readelf *re, uint8_t *p, uint8_t *pe)
3879 {
3880 	uint64_t tag, val;
3881 	size_t i;
3882 	int found, desc;
3883 
3884 	(void) re;
3885 
3886 	while (p < pe) {
3887 		tag = _decode_uleb128(&p, pe);
3888 		found = desc = 0;
3889 		for (i = 0; i < sizeof(aeabi_tags) / sizeof(aeabi_tags[0]);
3890 		     i++) {
3891 			if (tag == aeabi_tags[i].tag) {
3892 				found = 1;
3893 				printf("  %s: ", aeabi_tags[i].s_tag);
3894 				if (aeabi_tags[i].get_desc) {
3895 					desc = 1;
3896 					val = _decode_uleb128(&p, pe);
3897 					printf("%s\n",
3898 					    aeabi_tags[i].get_desc(val));
3899 				}
3900 				break;
3901 			}
3902 			if (tag < aeabi_tags[i].tag)
3903 				break;
3904 		}
3905 		if (!found) {
3906 			p = dump_unknown_tag(tag, p, pe);
3907 			continue;
3908 		}
3909 		if (desc)
3910 			continue;
3911 
3912 		switch (tag) {
3913 		case 4:		/* Tag_CPU_raw_name */
3914 		case 5:		/* Tag_CPU_name */
3915 		case 67:	/* Tag_conformance */
3916 			printf("%s\n", (char *) p);
3917 			p += strlen((char *) p) + 1;
3918 			break;
3919 		case 32:	/* Tag_compatibility */
3920 			p = dump_compatibility_tag(p, pe);
3921 			break;
3922 		case 64:	/* Tag_nodefaults */
3923 			/* ignored, written as 0. */
3924 			(void) _decode_uleb128(&p, pe);
3925 			printf("True\n");
3926 			break;
3927 		case 65:	/* Tag_also_compatible_with */
3928 			val = _decode_uleb128(&p, pe);
3929 			/* Must be Tag_CPU_arch */
3930 			if (val != 6) {
3931 				printf("unknown\n");
3932 				break;
3933 			}
3934 			val = _decode_uleb128(&p, pe);
3935 			printf("%s\n", aeabi_cpu_arch(val));
3936 			/* Skip NUL terminator. */
3937 			p++;
3938 			break;
3939 		default:
3940 			putchar('\n');
3941 			break;
3942 		}
3943 	}
3944 }
3945 
3946 #ifndef	Tag_GNU_MIPS_ABI_FP
3947 #define	Tag_GNU_MIPS_ABI_FP	4
3948 #endif
3949 
3950 static void
3951 dump_mips_attributes(struct readelf *re, uint8_t *p, uint8_t *pe)
3952 {
3953 	uint64_t tag, val;
3954 
3955 	(void) re;
3956 
3957 	while (p < pe) {
3958 		tag = _decode_uleb128(&p, pe);
3959 		switch (tag) {
3960 		case Tag_GNU_MIPS_ABI_FP:
3961 			val = _decode_uleb128(&p, pe);
3962 			printf("  Tag_GNU_MIPS_ABI_FP: %s\n", mips_abi_fp(val));
3963 			break;
3964 		case 32:	/* Tag_compatibility */
3965 			p = dump_compatibility_tag(p, pe);
3966 			break;
3967 		default:
3968 			p = dump_unknown_tag(tag, p, pe);
3969 			break;
3970 		}
3971 	}
3972 }
3973 
3974 #ifndef Tag_GNU_Power_ABI_FP
3975 #define	Tag_GNU_Power_ABI_FP	4
3976 #endif
3977 
3978 #ifndef Tag_GNU_Power_ABI_Vector
3979 #define	Tag_GNU_Power_ABI_Vector	8
3980 #endif
3981 
3982 static void
3983 dump_ppc_attributes(uint8_t *p, uint8_t *pe)
3984 {
3985 	uint64_t tag, val;
3986 
3987 	while (p < pe) {
3988 		tag = _decode_uleb128(&p, pe);
3989 		switch (tag) {
3990 		case Tag_GNU_Power_ABI_FP:
3991 			val = _decode_uleb128(&p, pe);
3992 			printf("  Tag_GNU_Power_ABI_FP: %s\n", ppc_abi_fp(val));
3993 			break;
3994 		case Tag_GNU_Power_ABI_Vector:
3995 			val = _decode_uleb128(&p, pe);
3996 			printf("  Tag_GNU_Power_ABI_Vector: %s\n",
3997 			    ppc_abi_vector(val));
3998 			break;
3999 		case 32:	/* Tag_compatibility */
4000 			p = dump_compatibility_tag(p, pe);
4001 			break;
4002 		default:
4003 			p = dump_unknown_tag(tag, p, pe);
4004 			break;
4005 		}
4006 	}
4007 }
4008 
4009 static void
4010 dump_attributes(struct readelf *re)
4011 {
4012 	struct section *s;
4013 	Elf_Data *d;
4014 	uint8_t *p, *pe, *sp;
4015 	size_t len, seclen, nlen, sublen;
4016 	uint64_t val;
4017 	int tag, i, elferr;
4018 
4019 	for (i = 0; (size_t) i < re->shnum; i++) {
4020 		s = &re->sl[i];
4021 		if (s->type != SHT_GNU_ATTRIBUTES &&
4022 		    (re->ehdr.e_machine != EM_ARM || s->type != SHT_LOPROC + 3))
4023 			continue;
4024 		(void) elf_errno();
4025 		if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4026 			elferr = elf_errno();
4027 			if (elferr != 0)
4028 				warnx("elf_rawdata failed: %s",
4029 				    elf_errmsg(elferr));
4030 			continue;
4031 		}
4032 		if (d->d_size <= 0)
4033 			continue;
4034 		p = d->d_buf;
4035 		pe = p + d->d_size;
4036 		if (*p != 'A') {
4037 			printf("Unknown Attribute Section Format: %c\n",
4038 			    (char) *p);
4039 			continue;
4040 		}
4041 		len = d->d_size - 1;
4042 		p++;
4043 		while (len > 0) {
4044 			if (len < 4) {
4045 				warnx("truncated attribute section length");
4046 				return;
4047 			}
4048 			seclen = re->dw_decode(&p, 4);
4049 			if (seclen > len) {
4050 				warnx("invalid attribute section length");
4051 				return;
4052 			}
4053 			len -= seclen;
4054 			nlen = strlen((char *) p) + 1;
4055 			if (nlen + 4 > seclen) {
4056 				warnx("invalid attribute section name");
4057 				return;
4058 			}
4059 			printf("Attribute Section: %s\n", (char *) p);
4060 			p += nlen;
4061 			seclen -= nlen + 4;
4062 			while (seclen > 0) {
4063 				sp = p;
4064 				tag = *p++;
4065 				sublen = re->dw_decode(&p, 4);
4066 				if (sublen > seclen) {
4067 					warnx("invalid attribute sub-section"
4068 					    " length");
4069 					return;
4070 				}
4071 				seclen -= sublen;
4072 				printf("%s", top_tag(tag));
4073 				if (tag == 2 || tag == 3) {
4074 					putchar(':');
4075 					for (;;) {
4076 						val = _decode_uleb128(&p, pe);
4077 						if (val == 0)
4078 							break;
4079 						printf(" %ju", (uintmax_t) val);
4080 					}
4081 				}
4082 				putchar('\n');
4083 				if (re->ehdr.e_machine == EM_ARM &&
4084 				    s->type == SHT_LOPROC + 3)
4085 					dump_arm_attributes(re, p, sp + sublen);
4086 				else if (re->ehdr.e_machine == EM_MIPS ||
4087 				    re->ehdr.e_machine == EM_MIPS_RS3_LE)
4088 					dump_mips_attributes(re, p,
4089 					    sp + sublen);
4090 				else if (re->ehdr.e_machine == EM_PPC)
4091 					dump_ppc_attributes(p, sp + sublen);
4092 				p = sp + sublen;
4093 			}
4094 		}
4095 	}
4096 }
4097 
4098 static void
4099 dump_mips_specific_info(struct readelf *re)
4100 {
4101 	struct section *s;
4102 	int i, options_found;
4103 
4104 	options_found = 0;
4105 	s = NULL;
4106 	for (i = 0; (size_t) i < re->shnum; i++) {
4107 		s = &re->sl[i];
4108 		if (s->name != NULL && (!strcmp(s->name, ".MIPS.options") ||
4109 		    (s->type == SHT_MIPS_OPTIONS))) {
4110 			dump_mips_options(re, s);
4111 			options_found = 1;
4112 		}
4113 	}
4114 
4115 	/*
4116 	 * According to SGI mips64 spec, .reginfo should be ignored if
4117 	 * .MIPS.options section is present.
4118 	 */
4119 	if (!options_found) {
4120 		for (i = 0; (size_t) i < re->shnum; i++) {
4121 			s = &re->sl[i];
4122 			if (s->name != NULL && (!strcmp(s->name, ".reginfo") ||
4123 			    (s->type == SHT_MIPS_REGINFO)))
4124 				dump_mips_reginfo(re, s);
4125 		}
4126 	}
4127 }
4128 
4129 static void
4130 dump_mips_reginfo(struct readelf *re, struct section *s)
4131 {
4132 	Elf_Data *d;
4133 	int elferr, len;
4134 
4135 	(void) elf_errno();
4136 	if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4137 		elferr = elf_errno();
4138 		if (elferr != 0)
4139 			warnx("elf_rawdata failed: %s",
4140 			    elf_errmsg(elferr));
4141 		return;
4142 	}
4143 	if (d->d_size <= 0)
4144 		return;
4145 	if (!get_ent_count(s, &len))
4146 		return;
4147 
4148 	printf("\nSection '%s' contains %d entries:\n", s->name, len);
4149 	dump_mips_odk_reginfo(re, d->d_buf, d->d_size);
4150 }
4151 
4152 static void
4153 dump_mips_options(struct readelf *re, struct section *s)
4154 {
4155 	Elf_Data *d;
4156 	uint32_t info;
4157 	uint16_t sndx;
4158 	uint8_t *p, *pe;
4159 	uint8_t kind, size;
4160 	int elferr;
4161 
4162 	(void) elf_errno();
4163 	if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4164 		elferr = elf_errno();
4165 		if (elferr != 0)
4166 			warnx("elf_rawdata failed: %s",
4167 			    elf_errmsg(elferr));
4168 		return;
4169 	}
4170 	if (d->d_size == 0)
4171 		return;
4172 
4173 	printf("\nSection %s contains:\n", s->name);
4174 	p = d->d_buf;
4175 	pe = p + d->d_size;
4176 	while (p < pe) {
4177 		if (pe - p < 8) {
4178 			warnx("Truncated MIPS option header");
4179 			return;
4180 		}
4181 		kind = re->dw_decode(&p, 1);
4182 		size = re->dw_decode(&p, 1);
4183 		sndx = re->dw_decode(&p, 2);
4184 		info = re->dw_decode(&p, 4);
4185 		if (size < 8 || size - 8 > pe - p) {
4186 			warnx("Malformed MIPS option header");
4187 			return;
4188 		}
4189 		size -= 8;
4190 		switch (kind) {
4191 		case ODK_REGINFO:
4192 			dump_mips_odk_reginfo(re, p, size);
4193 			break;
4194 		case ODK_EXCEPTIONS:
4195 			printf(" EXCEPTIONS FPU_MIN: %#x\n",
4196 			    info & OEX_FPU_MIN);
4197 			printf("%11.11s FPU_MAX: %#x\n", "",
4198 			    info & OEX_FPU_MAX);
4199 			dump_mips_option_flags("", mips_exceptions_option,
4200 			    info);
4201 			break;
4202 		case ODK_PAD:
4203 			printf(" %-10.10s section: %ju\n", "OPAD",
4204 			    (uintmax_t) sndx);
4205 			dump_mips_option_flags("", mips_pad_option, info);
4206 			break;
4207 		case ODK_HWPATCH:
4208 			dump_mips_option_flags("HWPATCH", mips_hwpatch_option,
4209 			    info);
4210 			break;
4211 		case ODK_HWAND:
4212 			dump_mips_option_flags("HWAND", mips_hwa_option, info);
4213 			break;
4214 		case ODK_HWOR:
4215 			dump_mips_option_flags("HWOR", mips_hwo_option, info);
4216 			break;
4217 		case ODK_FILL:
4218 			printf(" %-10.10s %#jx\n", "FILL", (uintmax_t) info);
4219 			break;
4220 		case ODK_TAGS:
4221 			printf(" %-10.10s\n", "TAGS");
4222 			break;
4223 		case ODK_GP_GROUP:
4224 			printf(" %-10.10s GP group number: %#x\n", "GP_GROUP",
4225 			    info & 0xFFFF);
4226 			if (info & 0x10000)
4227 				printf(" %-10.10s GP group is "
4228 				    "self-contained\n", "");
4229 			break;
4230 		case ODK_IDENT:
4231 			printf(" %-10.10s default GP group number: %#x\n",
4232 			    "IDENT", info & 0xFFFF);
4233 			if (info & 0x10000)
4234 				printf(" %-10.10s default GP group is "
4235 				    "self-contained\n", "");
4236 			break;
4237 		case ODK_PAGESIZE:
4238 			printf(" %-10.10s\n", "PAGESIZE");
4239 			break;
4240 		default:
4241 			break;
4242 		}
4243 		p += size;
4244 	}
4245 }
4246 
4247 static void
4248 dump_mips_option_flags(const char *name, struct mips_option *opt, uint64_t info)
4249 {
4250 	int first;
4251 
4252 	first = 1;
4253 	for (; opt->desc != NULL; opt++) {
4254 		if (info & opt->flag) {
4255 			printf(" %-10.10s %s\n", first ? name : "",
4256 			    opt->desc);
4257 			first = 0;
4258 		}
4259 	}
4260 }
4261 
4262 static void
4263 dump_mips_odk_reginfo(struct readelf *re, uint8_t *p, size_t sz)
4264 {
4265 	uint32_t ri_gprmask;
4266 	uint32_t ri_cprmask[4];
4267 	uint64_t ri_gp_value;
4268 	uint8_t *pe;
4269 	int i;
4270 
4271 	pe = p + sz;
4272 	while (p < pe) {
4273 		ri_gprmask = re->dw_decode(&p, 4);
4274 		/* Skip ri_pad padding field for mips64. */
4275 		if (re->ec == ELFCLASS64)
4276 			re->dw_decode(&p, 4);
4277 		for (i = 0; i < 4; i++)
4278 			ri_cprmask[i] = re->dw_decode(&p, 4);
4279 		if (re->ec == ELFCLASS32)
4280 			ri_gp_value = re->dw_decode(&p, 4);
4281 		else
4282 			ri_gp_value = re->dw_decode(&p, 8);
4283 		printf(" %s    ", option_kind(ODK_REGINFO));
4284 		printf("ri_gprmask:    0x%08jx\n", (uintmax_t) ri_gprmask);
4285 		for (i = 0; i < 4; i++)
4286 			printf("%11.11s ri_cprmask[%d]: 0x%08jx\n", "", i,
4287 			    (uintmax_t) ri_cprmask[i]);
4288 		printf("%12.12s", "");
4289 		printf("ri_gp_value:   %#jx\n", (uintmax_t) ri_gp_value);
4290 	}
4291 }
4292 
4293 static void
4294 dump_arch_specific_info(struct readelf *re)
4295 {
4296 
4297 	dump_liblist(re);
4298 	dump_attributes(re);
4299 
4300 	switch (re->ehdr.e_machine) {
4301 	case EM_MIPS:
4302 	case EM_MIPS_RS3_LE:
4303 		dump_mips_specific_info(re);
4304 	default:
4305 		break;
4306 	}
4307 }
4308 
4309 static const char *
4310 dwarf_regname(struct readelf *re, unsigned int num)
4311 {
4312 	static char rx[32];
4313 	const char *rn;
4314 
4315 	if ((rn = dwarf_reg(re->ehdr.e_machine, num)) != NULL)
4316 		return (rn);
4317 
4318 	snprintf(rx, sizeof(rx), "r%u", num);
4319 
4320 	return (rx);
4321 }
4322 
4323 static void
4324 dump_dwarf_line(struct readelf *re)
4325 {
4326 	struct section *s;
4327 	Dwarf_Die die;
4328 	Dwarf_Error de;
4329 	Dwarf_Half tag, version, pointer_size;
4330 	Dwarf_Unsigned offset, endoff, length, hdrlen, dirndx, mtime, fsize;
4331 	Dwarf_Small minlen, defstmt, lrange, opbase, oplen;
4332 	Elf_Data *d;
4333 	char *pn;
4334 	uint64_t address, file, line, column, isa, opsize, udelta;
4335 	int64_t sdelta;
4336 	uint8_t *p, *pe;
4337 	int8_t lbase;
4338 	int i, is_stmt, dwarf_size, elferr, ret;
4339 
4340 	printf("\nDump of debug contents of section .debug_line:\n");
4341 
4342 	s = NULL;
4343 	for (i = 0; (size_t) i < re->shnum; i++) {
4344 		s = &re->sl[i];
4345 		if (s->name != NULL && !strcmp(s->name, ".debug_line"))
4346 			break;
4347 	}
4348 	if ((size_t) i >= re->shnum)
4349 		return;
4350 
4351 	(void) elf_errno();
4352 	if ((d = elf_getdata(s->scn, NULL)) == NULL) {
4353 		elferr = elf_errno();
4354 		if (elferr != 0)
4355 			warnx("elf_getdata failed: %s", elf_errmsg(-1));
4356 		return;
4357 	}
4358 	if (d->d_size <= 0)
4359 		return;
4360 
4361 	while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
4362 	    NULL, &de)) ==  DW_DLV_OK) {
4363 		die = NULL;
4364 		while (dwarf_siblingof(re->dbg, die, &die, &de) == DW_DLV_OK) {
4365 			if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
4366 				warnx("dwarf_tag failed: %s",
4367 				    dwarf_errmsg(de));
4368 				return;
4369 			}
4370 			/* XXX: What about DW_TAG_partial_unit? */
4371 			if (tag == DW_TAG_compile_unit)
4372 				break;
4373 		}
4374 		if (die == NULL) {
4375 			warnx("could not find DW_TAG_compile_unit die");
4376 			return;
4377 		}
4378 		if (dwarf_attrval_unsigned(die, DW_AT_stmt_list, &offset,
4379 		    &de) != DW_DLV_OK)
4380 			continue;
4381 
4382 		length = re->dw_read(d, &offset, 4);
4383 		if (length == 0xffffffff) {
4384 			dwarf_size = 8;
4385 			length = re->dw_read(d, &offset, 8);
4386 		} else
4387 			dwarf_size = 4;
4388 
4389 		if (length > d->d_size - offset) {
4390 			warnx("invalid .dwarf_line section");
4391 			continue;
4392 		}
4393 
4394 		endoff = offset + length;
4395 		pe = (uint8_t *) d->d_buf + endoff;
4396 		version = re->dw_read(d, &offset, 2);
4397 		hdrlen = re->dw_read(d, &offset, dwarf_size);
4398 		minlen = re->dw_read(d, &offset, 1);
4399 		defstmt = re->dw_read(d, &offset, 1);
4400 		lbase = re->dw_read(d, &offset, 1);
4401 		lrange = re->dw_read(d, &offset, 1);
4402 		opbase = re->dw_read(d, &offset, 1);
4403 
4404 		printf("\n");
4405 		printf("  Length:\t\t\t%ju\n", (uintmax_t) length);
4406 		printf("  DWARF version:\t\t%u\n", version);
4407 		printf("  Prologue Length:\t\t%ju\n", (uintmax_t) hdrlen);
4408 		printf("  Minimum Instruction Length:\t%u\n", minlen);
4409 		printf("  Initial value of 'is_stmt':\t%u\n", defstmt);
4410 		printf("  Line Base:\t\t\t%d\n", lbase);
4411 		printf("  Line Range:\t\t\t%u\n", lrange);
4412 		printf("  Opcode Base:\t\t\t%u\n", opbase);
4413 		(void) dwarf_get_address_size(re->dbg, &pointer_size, &de);
4414 		printf("  (Pointer size:\t\t%u)\n", pointer_size);
4415 
4416 		printf("\n");
4417 		printf(" Opcodes:\n");
4418 		for (i = 1; i < opbase; i++) {
4419 			oplen = re->dw_read(d, &offset, 1);
4420 			printf("  Opcode %d has %u args\n", i, oplen);
4421 		}
4422 
4423 		printf("\n");
4424 		printf(" The Directory Table:\n");
4425 		p = (uint8_t *) d->d_buf + offset;
4426 		while (*p != '\0') {
4427 			printf("  %s\n", (char *) p);
4428 			p += strlen((char *) p) + 1;
4429 		}
4430 
4431 		p++;
4432 		printf("\n");
4433 		printf(" The File Name Table:\n");
4434 		printf("  Entry\tDir\tTime\tSize\tName\n");
4435 		i = 0;
4436 		while (*p != '\0') {
4437 			i++;
4438 			pn = (char *) p;
4439 			p += strlen(pn) + 1;
4440 			dirndx = _decode_uleb128(&p, pe);
4441 			mtime = _decode_uleb128(&p, pe);
4442 			fsize = _decode_uleb128(&p, pe);
4443 			printf("  %d\t%ju\t%ju\t%ju\t%s\n", i,
4444 			    (uintmax_t) dirndx, (uintmax_t) mtime,
4445 			    (uintmax_t) fsize, pn);
4446 		}
4447 
4448 #define	RESET_REGISTERS						\
4449 	do {							\
4450 		address	       = 0;				\
4451 		file	       = 1;				\
4452 		line	       = 1;				\
4453 		column	       = 0;				\
4454 		is_stmt	       = defstmt;			\
4455 	} while(0)
4456 
4457 #define	LINE(x) (lbase + (((x) - opbase) % lrange))
4458 #define	ADDRESS(x) ((((x) - opbase) / lrange) * minlen)
4459 
4460 		p++;
4461 		printf("\n");
4462 		printf(" Line Number Statements:\n");
4463 
4464 		RESET_REGISTERS;
4465 
4466 		while (p < pe) {
4467 
4468 			if (*p == 0) {
4469 				/*
4470 				 * Extended Opcodes.
4471 				 */
4472 				p++;
4473 				opsize = _decode_uleb128(&p, pe);
4474 				printf("  Extended opcode %u: ", *p);
4475 				switch (*p) {
4476 				case DW_LNE_end_sequence:
4477 					p++;
4478 					RESET_REGISTERS;
4479 					printf("End of Sequence\n");
4480 					break;
4481 				case DW_LNE_set_address:
4482 					p++;
4483 					address = re->dw_decode(&p,
4484 					    pointer_size);
4485 					printf("set Address to %#jx\n",
4486 					    (uintmax_t) address);
4487 					break;
4488 				case DW_LNE_define_file:
4489 					p++;
4490 					pn = (char *) p;
4491 					p += strlen(pn) + 1;
4492 					dirndx = _decode_uleb128(&p, pe);
4493 					mtime = _decode_uleb128(&p, pe);
4494 					fsize = _decode_uleb128(&p, pe);
4495 					printf("define new file: %s\n", pn);
4496 					break;
4497 				default:
4498 					/* Unrecognized extened opcodes. */
4499 					p += opsize;
4500 					printf("unknown opcode\n");
4501 				}
4502 			} else if (*p > 0 && *p < opbase) {
4503 				/*
4504 				 * Standard Opcodes.
4505 				 */
4506 				switch(*p++) {
4507 				case DW_LNS_copy:
4508 					printf("  Copy\n");
4509 					break;
4510 				case DW_LNS_advance_pc:
4511 					udelta = _decode_uleb128(&p, pe) *
4512 					    minlen;
4513 					address += udelta;
4514 					printf("  Advance PC by %ju to %#jx\n",
4515 					    (uintmax_t) udelta,
4516 					    (uintmax_t) address);
4517 					break;
4518 				case DW_LNS_advance_line:
4519 					sdelta = _decode_sleb128(&p, pe);
4520 					line += sdelta;
4521 					printf("  Advance Line by %jd to %ju\n",
4522 					    (intmax_t) sdelta,
4523 					    (uintmax_t) line);
4524 					break;
4525 				case DW_LNS_set_file:
4526 					file = _decode_uleb128(&p, pe);
4527 					printf("  Set File to %ju\n",
4528 					    (uintmax_t) file);
4529 					break;
4530 				case DW_LNS_set_column:
4531 					column = _decode_uleb128(&p, pe);
4532 					printf("  Set Column to %ju\n",
4533 					    (uintmax_t) column);
4534 					break;
4535 				case DW_LNS_negate_stmt:
4536 					is_stmt = !is_stmt;
4537 					printf("  Set is_stmt to %d\n", is_stmt);
4538 					break;
4539 				case DW_LNS_set_basic_block:
4540 					printf("  Set basic block flag\n");
4541 					break;
4542 				case DW_LNS_const_add_pc:
4543 					address += ADDRESS(255);
4544 					printf("  Advance PC by constant %ju"
4545 					    " to %#jx\n",
4546 					    (uintmax_t) ADDRESS(255),
4547 					    (uintmax_t) address);
4548 					break;
4549 				case DW_LNS_fixed_advance_pc:
4550 					udelta = re->dw_decode(&p, 2);
4551 					address += udelta;
4552 					printf("  Advance PC by fixed value "
4553 					    "%ju to %#jx\n",
4554 					    (uintmax_t) udelta,
4555 					    (uintmax_t) address);
4556 					break;
4557 				case DW_LNS_set_prologue_end:
4558 					printf("  Set prologue end flag\n");
4559 					break;
4560 				case DW_LNS_set_epilogue_begin:
4561 					printf("  Set epilogue begin flag\n");
4562 					break;
4563 				case DW_LNS_set_isa:
4564 					isa = _decode_uleb128(&p, pe);
4565 					printf("  Set isa to %ju\n",
4566 					    (uintmax_t) isa);
4567 					break;
4568 				default:
4569 					/* Unrecognized extended opcodes. */
4570 					printf("  Unknown extended opcode %u\n",
4571 					    *(p - 1));
4572 					break;
4573 				}
4574 
4575 			} else {
4576 				/*
4577 				 * Special Opcodes.
4578 				 */
4579 				line += LINE(*p);
4580 				address += ADDRESS(*p);
4581 				printf("  Special opcode %u: advance Address "
4582 				    "by %ju to %#jx and Line by %jd to %ju\n",
4583 				    *p - opbase, (uintmax_t) ADDRESS(*p),
4584 				    (uintmax_t) address, (intmax_t) LINE(*p),
4585 				    (uintmax_t) line);
4586 				p++;
4587 			}
4588 
4589 
4590 		}
4591 	}
4592 	if (ret == DW_DLV_ERROR)
4593 		warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
4594 
4595 #undef	RESET_REGISTERS
4596 #undef	LINE
4597 #undef	ADDRESS
4598 }
4599 
4600 static void
4601 dump_dwarf_line_decoded(struct readelf *re)
4602 {
4603 	Dwarf_Die die;
4604 	Dwarf_Line *linebuf, ln;
4605 	Dwarf_Addr lineaddr;
4606 	Dwarf_Signed linecount, srccount;
4607 	Dwarf_Unsigned lineno, fn;
4608 	Dwarf_Error de;
4609 	const char *dir, *file;
4610 	char **srcfiles;
4611 	int i, ret;
4612 
4613 	printf("Decoded dump of debug contents of section .debug_line:\n\n");
4614 	while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
4615 	    NULL, &de)) == DW_DLV_OK) {
4616 		if (dwarf_siblingof(re->dbg, NULL, &die, &de) != DW_DLV_OK)
4617 			continue;
4618 		if (dwarf_attrval_string(die, DW_AT_name, &file, &de) !=
4619 		    DW_DLV_OK)
4620 			file = NULL;
4621 		if (dwarf_attrval_string(die, DW_AT_comp_dir, &dir, &de) !=
4622 		    DW_DLV_OK)
4623 			dir = NULL;
4624 		printf("CU: ");
4625 		if (dir && file)
4626 			printf("%s/", dir);
4627 		if (file)
4628 			printf("%s", file);
4629 		putchar('\n');
4630 		printf("%-37s %11s   %s\n", "Filename", "Line Number",
4631 		    "Starting Address");
4632 		if (dwarf_srclines(die, &linebuf, &linecount, &de) != DW_DLV_OK)
4633 			continue;
4634 		if (dwarf_srcfiles(die, &srcfiles, &srccount, &de) != DW_DLV_OK)
4635 			continue;
4636 		for (i = 0; i < linecount; i++) {
4637 			ln = linebuf[i];
4638 			if (dwarf_line_srcfileno(ln, &fn, &de) != DW_DLV_OK)
4639 				continue;
4640 			if (dwarf_lineno(ln, &lineno, &de) != DW_DLV_OK)
4641 				continue;
4642 			if (dwarf_lineaddr(ln, &lineaddr, &de) != DW_DLV_OK)
4643 				continue;
4644 			printf("%-37s %11ju %#18jx\n",
4645 			    basename(srcfiles[fn - 1]), (uintmax_t) lineno,
4646 			    (uintmax_t) lineaddr);
4647 		}
4648 		putchar('\n');
4649 	}
4650 }
4651 
4652 static void
4653 dump_dwarf_die(struct readelf *re, Dwarf_Die die, int level)
4654 {
4655 	Dwarf_Attribute *attr_list;
4656 	Dwarf_Die ret_die;
4657 	Dwarf_Off dieoff, cuoff, culen, attroff;
4658 	Dwarf_Unsigned ate, lang, v_udata, v_sig;
4659 	Dwarf_Signed attr_count, v_sdata;
4660 	Dwarf_Off v_off;
4661 	Dwarf_Addr v_addr;
4662 	Dwarf_Half tag, attr, form;
4663 	Dwarf_Block *v_block;
4664 	Dwarf_Bool v_bool, is_info;
4665 	Dwarf_Sig8 v_sig8;
4666 	Dwarf_Error de;
4667 	Dwarf_Ptr v_expr;
4668 	const char *tag_str, *attr_str, *ate_str, *lang_str;
4669 	char unk_tag[32], unk_attr[32];
4670 	char *v_str;
4671 	uint8_t *b, *p;
4672 	int i, j, abc, ret;
4673 
4674 	if (dwarf_dieoffset(die, &dieoff, &de) != DW_DLV_OK) {
4675 		warnx("dwarf_dieoffset failed: %s", dwarf_errmsg(de));
4676 		goto cont_search;
4677 	}
4678 
4679 	printf(" <%d><%jx>: ", level, (uintmax_t) dieoff);
4680 
4681 	if (dwarf_die_CU_offset_range(die, &cuoff, &culen, &de) != DW_DLV_OK) {
4682 		warnx("dwarf_die_CU_offset_range failed: %s",
4683 		      dwarf_errmsg(de));
4684 		cuoff = 0;
4685 	}
4686 
4687 	abc = dwarf_die_abbrev_code(die);
4688 	if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
4689 		warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
4690 		goto cont_search;
4691 	}
4692 	if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) {
4693 		snprintf(unk_tag, sizeof(unk_tag), "[Unknown Tag: %#x]", tag);
4694 		tag_str = unk_tag;
4695 	}
4696 
4697 	printf("Abbrev Number: %d (%s)\n", abc, tag_str);
4698 
4699 	if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
4700 	    DW_DLV_OK) {
4701 		if (ret == DW_DLV_ERROR)
4702 			warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
4703 		goto cont_search;
4704 	}
4705 
4706 	for (i = 0; i < attr_count; i++) {
4707 		if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) {
4708 			warnx("dwarf_whatform failed: %s", dwarf_errmsg(de));
4709 			continue;
4710 		}
4711 		if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
4712 			warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
4713 			continue;
4714 		}
4715 		if (dwarf_get_AT_name(attr, &attr_str) != DW_DLV_OK) {
4716 			snprintf(unk_attr, sizeof(unk_attr),
4717 			    "[Unknown AT: %#x]", attr);
4718 			attr_str = unk_attr;
4719 		}
4720 		if (dwarf_attroffset(attr_list[i], &attroff, &de) !=
4721 		    DW_DLV_OK) {
4722 			warnx("dwarf_attroffset failed: %s", dwarf_errmsg(de));
4723 			attroff = 0;
4724 		}
4725 		printf("    <%jx>   %-18s: ", (uintmax_t) attroff, attr_str);
4726 		switch (form) {
4727 		case DW_FORM_ref_addr:
4728 		case DW_FORM_sec_offset:
4729 			if (dwarf_global_formref(attr_list[i], &v_off, &de) !=
4730 			    DW_DLV_OK) {
4731 				warnx("dwarf_global_formref failed: %s",
4732 				    dwarf_errmsg(de));
4733 				continue;
4734 			}
4735 			if (form == DW_FORM_ref_addr)
4736 				printf("<0x%jx>", (uintmax_t) v_off);
4737 			else
4738 				printf("0x%jx", (uintmax_t) v_off);
4739 			break;
4740 
4741 		case DW_FORM_ref1:
4742 		case DW_FORM_ref2:
4743 		case DW_FORM_ref4:
4744 		case DW_FORM_ref8:
4745 		case DW_FORM_ref_udata:
4746 			if (dwarf_formref(attr_list[i], &v_off, &de) !=
4747 			    DW_DLV_OK) {
4748 				warnx("dwarf_formref failed: %s",
4749 				    dwarf_errmsg(de));
4750 				continue;
4751 			}
4752 			v_off += cuoff;
4753 			printf("<0x%jx>", (uintmax_t) v_off);
4754 			break;
4755 
4756 		case DW_FORM_addr:
4757 			if (dwarf_formaddr(attr_list[i], &v_addr, &de) !=
4758 			    DW_DLV_OK) {
4759 				warnx("dwarf_formaddr failed: %s",
4760 				    dwarf_errmsg(de));
4761 				continue;
4762 			}
4763 			printf("%#jx", (uintmax_t) v_addr);
4764 			break;
4765 
4766 		case DW_FORM_data1:
4767 		case DW_FORM_data2:
4768 		case DW_FORM_data4:
4769 		case DW_FORM_data8:
4770 		case DW_FORM_udata:
4771 			if (dwarf_formudata(attr_list[i], &v_udata, &de) !=
4772 			    DW_DLV_OK) {
4773 				warnx("dwarf_formudata failed: %s",
4774 				    dwarf_errmsg(de));
4775 				continue;
4776 			}
4777 			if (attr == DW_AT_high_pc)
4778 				printf("0x%jx", (uintmax_t) v_udata);
4779 			else
4780 				printf("%ju", (uintmax_t) v_udata);
4781 			break;
4782 
4783 		case DW_FORM_sdata:
4784 			if (dwarf_formsdata(attr_list[i], &v_sdata, &de) !=
4785 			    DW_DLV_OK) {
4786 				warnx("dwarf_formudata failed: %s",
4787 				    dwarf_errmsg(de));
4788 				continue;
4789 			}
4790 			printf("%jd", (intmax_t) v_sdata);
4791 			break;
4792 
4793 		case DW_FORM_flag:
4794 			if (dwarf_formflag(attr_list[i], &v_bool, &de) !=
4795 			    DW_DLV_OK) {
4796 				warnx("dwarf_formflag failed: %s",
4797 				    dwarf_errmsg(de));
4798 				continue;
4799 			}
4800 			printf("%jd", (intmax_t) v_bool);
4801 			break;
4802 
4803 		case DW_FORM_flag_present:
4804 			putchar('1');
4805 			break;
4806 
4807 		case DW_FORM_string:
4808 		case DW_FORM_strp:
4809 			if (dwarf_formstring(attr_list[i], &v_str, &de) !=
4810 			    DW_DLV_OK) {
4811 				warnx("dwarf_formstring failed: %s",
4812 				    dwarf_errmsg(de));
4813 				continue;
4814 			}
4815 			if (form == DW_FORM_string)
4816 				printf("%s", v_str);
4817 			else
4818 				printf("(indirect string) %s", v_str);
4819 			break;
4820 
4821 		case DW_FORM_block:
4822 		case DW_FORM_block1:
4823 		case DW_FORM_block2:
4824 		case DW_FORM_block4:
4825 			if (dwarf_formblock(attr_list[i], &v_block, &de) !=
4826 			    DW_DLV_OK) {
4827 				warnx("dwarf_formblock failed: %s",
4828 				    dwarf_errmsg(de));
4829 				continue;
4830 			}
4831 			printf("%ju byte block:", (uintmax_t) v_block->bl_len);
4832 			b = v_block->bl_data;
4833 			for (j = 0; (Dwarf_Unsigned) j < v_block->bl_len; j++)
4834 				printf(" %x", b[j]);
4835 			printf("\t(");
4836 			dump_dwarf_block(re, v_block->bl_data, v_block->bl_len);
4837 			putchar(')');
4838 			break;
4839 
4840 		case DW_FORM_exprloc:
4841 			if (dwarf_formexprloc(attr_list[i], &v_udata, &v_expr,
4842 			    &de) != DW_DLV_OK) {
4843 				warnx("dwarf_formexprloc failed: %s",
4844 				    dwarf_errmsg(de));
4845 				continue;
4846 			}
4847 			printf("%ju byte block:", (uintmax_t) v_udata);
4848 			b = v_expr;
4849 			for (j = 0; (Dwarf_Unsigned) j < v_udata; j++)
4850 				printf(" %x", b[j]);
4851 			printf("\t(");
4852 			dump_dwarf_block(re, v_expr, v_udata);
4853 			putchar(')');
4854 			break;
4855 
4856 		case DW_FORM_ref_sig8:
4857 			if (dwarf_formsig8(attr_list[i], &v_sig8, &de) !=
4858 			    DW_DLV_OK) {
4859 				warnx("dwarf_formsig8 failed: %s",
4860 				    dwarf_errmsg(de));
4861 				continue;
4862 			}
4863 			p = (uint8_t *)(uintptr_t) &v_sig8.signature[0];
4864 			v_sig = re->dw_decode(&p, 8);
4865 			printf("signature: 0x%jx", (uintmax_t) v_sig);
4866 		}
4867 		switch (attr) {
4868 		case DW_AT_encoding:
4869 			if (dwarf_attrval_unsigned(die, attr, &ate, &de) !=
4870 			    DW_DLV_OK)
4871 				break;
4872 			if (dwarf_get_ATE_name(ate, &ate_str) != DW_DLV_OK)
4873 				ate_str = "DW_ATE_UNKNOWN";
4874 			printf("\t(%s)", &ate_str[strlen("DW_ATE_")]);
4875 			break;
4876 
4877 		case DW_AT_language:
4878 			if (dwarf_attrval_unsigned(die, attr, &lang, &de) !=
4879 			    DW_DLV_OK)
4880 				break;
4881 			if (dwarf_get_LANG_name(lang, &lang_str) != DW_DLV_OK)
4882 				break;
4883 			printf("\t(%s)", &lang_str[strlen("DW_LANG_")]);
4884 			break;
4885 
4886 		case DW_AT_location:
4887 		case DW_AT_string_length:
4888 		case DW_AT_return_addr:
4889 		case DW_AT_data_member_location:
4890 		case DW_AT_frame_base:
4891 		case DW_AT_segment:
4892 		case DW_AT_static_link:
4893 		case DW_AT_use_location:
4894 		case DW_AT_vtable_elem_location:
4895 			switch (form) {
4896 			case DW_FORM_data4:
4897 			case DW_FORM_data8:
4898 			case DW_FORM_sec_offset:
4899 				printf("\t(location list)");
4900 				break;
4901 			default:
4902 				break;
4903 			}
4904 
4905 		default:
4906 			break;
4907 		}
4908 		putchar('\n');
4909 	}
4910 
4911 
4912 cont_search:
4913 	/* Search children. */
4914 	ret = dwarf_child(die, &ret_die, &de);
4915 	if (ret == DW_DLV_ERROR)
4916 		warnx("dwarf_child: %s", dwarf_errmsg(de));
4917 	else if (ret == DW_DLV_OK)
4918 		dump_dwarf_die(re, ret_die, level + 1);
4919 
4920 	/* Search sibling. */
4921 	is_info = dwarf_get_die_infotypes_flag(die);
4922 	ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de);
4923 	if (ret == DW_DLV_ERROR)
4924 		warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
4925 	else if (ret == DW_DLV_OK)
4926 		dump_dwarf_die(re, ret_die, level);
4927 
4928 	dwarf_dealloc(re->dbg, die, DW_DLA_DIE);
4929 }
4930 
4931 static void
4932 set_cu_context(struct readelf *re, Dwarf_Half psize, Dwarf_Half osize,
4933     Dwarf_Half ver)
4934 {
4935 
4936 	re->cu_psize = psize;
4937 	re->cu_osize = osize;
4938 	re->cu_ver = ver;
4939 }
4940 
4941 static void
4942 dump_dwarf_info(struct readelf *re, Dwarf_Bool is_info)
4943 {
4944 	struct section *s;
4945 	Dwarf_Die die;
4946 	Dwarf_Error de;
4947 	Dwarf_Half tag, version, pointer_size, off_size;
4948 	Dwarf_Off cu_offset, cu_length;
4949 	Dwarf_Off aboff;
4950 	Dwarf_Unsigned typeoff;
4951 	Dwarf_Sig8 sig8;
4952 	Dwarf_Unsigned sig;
4953 	uint8_t *p;
4954 	const char *sn;
4955 	int i, ret;
4956 
4957 	sn = is_info ? ".debug_info" : ".debug_types";
4958 
4959 	s = NULL;
4960 	for (i = 0; (size_t) i < re->shnum; i++) {
4961 		s = &re->sl[i];
4962 		if (s->name != NULL && !strcmp(s->name, sn))
4963 			break;
4964 	}
4965 	if ((size_t) i >= re->shnum)
4966 		return;
4967 
4968 	do {
4969 		printf("\nDump of debug contents of section %s:\n", sn);
4970 
4971 		while ((ret = dwarf_next_cu_header_c(re->dbg, is_info, NULL,
4972 		    &version, &aboff, &pointer_size, &off_size, NULL, &sig8,
4973 		    &typeoff, NULL, &de)) == DW_DLV_OK) {
4974 			set_cu_context(re, pointer_size, off_size, version);
4975 			die = NULL;
4976 			while (dwarf_siblingof_b(re->dbg, die, &die, is_info,
4977 			    &de) == DW_DLV_OK) {
4978 				if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
4979 					warnx("dwarf_tag failed: %s",
4980 					    dwarf_errmsg(de));
4981 					continue;
4982 				}
4983 				/* XXX: What about DW_TAG_partial_unit? */
4984 				if ((is_info && tag == DW_TAG_compile_unit) ||
4985 				    (!is_info && tag == DW_TAG_type_unit))
4986 					break;
4987 			}
4988 			if (die == NULL && is_info) {
4989 				warnx("could not find DW_TAG_compile_unit "
4990 				    "die");
4991 				continue;
4992 			} else if (die == NULL && !is_info) {
4993 				warnx("could not find DW_TAG_type_unit die");
4994 				continue;
4995 			}
4996 
4997 			if (dwarf_die_CU_offset_range(die, &cu_offset,
4998 			    &cu_length, &de) != DW_DLV_OK) {
4999 				warnx("dwarf_die_CU_offset failed: %s",
5000 				    dwarf_errmsg(de));
5001 				continue;
5002 			}
5003 
5004 			cu_length -= off_size == 4 ? 4 : 12;
5005 
5006 			sig = 0;
5007 			if (!is_info) {
5008 				p = (uint8_t *)(uintptr_t) &sig8.signature[0];
5009 				sig = re->dw_decode(&p, 8);
5010 			}
5011 
5012 			printf("\n  Type Unit @ offset 0x%jx:\n",
5013 			    (uintmax_t) cu_offset);
5014 			printf("    Length:\t\t%#jx (%d-bit)\n",
5015 			    (uintmax_t) cu_length, off_size == 4 ? 32 : 64);
5016 			printf("    Version:\t\t%u\n", version);
5017 			printf("    Abbrev Offset:\t0x%jx\n",
5018 			    (uintmax_t) aboff);
5019 			printf("    Pointer Size:\t%u\n", pointer_size);
5020 			if (!is_info) {
5021 				printf("    Signature:\t\t0x%016jx\n",
5022 				    (uintmax_t) sig);
5023 				printf("    Type Offset:\t0x%jx\n",
5024 				    (uintmax_t) typeoff);
5025 			}
5026 
5027 			dump_dwarf_die(re, die, 0);
5028 		}
5029 		if (ret == DW_DLV_ERROR)
5030 			warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
5031 		if (is_info)
5032 			break;
5033 	} while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK);
5034 }
5035 
5036 static void
5037 dump_dwarf_abbrev(struct readelf *re)
5038 {
5039 	Dwarf_Abbrev ab;
5040 	Dwarf_Off aboff, atoff;
5041 	Dwarf_Unsigned length, attr_count;
5042 	Dwarf_Signed flag, form;
5043 	Dwarf_Half tag, attr;
5044 	Dwarf_Error de;
5045 	const char *tag_str, *attr_str, *form_str;
5046 	char unk_tag[32], unk_attr[32], unk_form[32];
5047 	int i, j, ret;
5048 
5049 	printf("\nContents of section .debug_abbrev:\n\n");
5050 
5051 	while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, &aboff,
5052 	    NULL, NULL, &de)) ==  DW_DLV_OK) {
5053 		printf("  Number TAG\n");
5054 		i = 0;
5055 		while ((ret = dwarf_get_abbrev(re->dbg, aboff, &ab, &length,
5056 		    &attr_count, &de)) == DW_DLV_OK) {
5057 			if (length == 1) {
5058 				dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV);
5059 				break;
5060 			}
5061 			aboff += length;
5062 			printf("%4d", ++i);
5063 			if (dwarf_get_abbrev_tag(ab, &tag, &de) != DW_DLV_OK) {
5064 				warnx("dwarf_get_abbrev_tag failed: %s",
5065 				    dwarf_errmsg(de));
5066 				goto next_abbrev;
5067 			}
5068 			if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) {
5069 				snprintf(unk_tag, sizeof(unk_tag),
5070 				    "[Unknown Tag: %#x]", tag);
5071 				tag_str = unk_tag;
5072 			}
5073 			if (dwarf_get_abbrev_children_flag(ab, &flag, &de) !=
5074 			    DW_DLV_OK) {
5075 				warnx("dwarf_get_abbrev_children_flag failed:"
5076 				    " %s", dwarf_errmsg(de));
5077 				goto next_abbrev;
5078 			}
5079 			printf("      %s    %s\n", tag_str,
5080 			    flag ? "[has children]" : "[no children]");
5081 			for (j = 0; (Dwarf_Unsigned) j < attr_count; j++) {
5082 				if (dwarf_get_abbrev_entry(ab, (Dwarf_Signed) j,
5083 				    &attr, &form, &atoff, &de) != DW_DLV_OK) {
5084 					warnx("dwarf_get_abbrev_entry failed:"
5085 					    " %s", dwarf_errmsg(de));
5086 					continue;
5087 				}
5088 				if (dwarf_get_AT_name(attr, &attr_str) !=
5089 				    DW_DLV_OK) {
5090 					snprintf(unk_attr, sizeof(unk_attr),
5091 					    "[Unknown AT: %#x]", attr);
5092 					attr_str = unk_attr;
5093 				}
5094 				if (dwarf_get_FORM_name(form, &form_str) !=
5095 				    DW_DLV_OK) {
5096 					snprintf(unk_form, sizeof(unk_form),
5097 					    "[Unknown Form: %#x]",
5098 					    (Dwarf_Half) form);
5099 					form_str = unk_form;
5100 				}
5101 				printf("    %-18s %s\n", attr_str, form_str);
5102 			}
5103 		next_abbrev:
5104 			dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV);
5105 		}
5106 		if (ret != DW_DLV_OK)
5107 			warnx("dwarf_get_abbrev: %s", dwarf_errmsg(de));
5108 	}
5109 	if (ret == DW_DLV_ERROR)
5110 		warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
5111 }
5112 
5113 static void
5114 dump_dwarf_pubnames(struct readelf *re)
5115 {
5116 	struct section *s;
5117 	Dwarf_Off die_off;
5118 	Dwarf_Unsigned offset, length, nt_cu_offset, nt_cu_length;
5119 	Dwarf_Signed cnt;
5120 	Dwarf_Global *globs;
5121 	Dwarf_Half nt_version;
5122 	Dwarf_Error de;
5123 	Elf_Data *d;
5124 	char *glob_name;
5125 	int i, dwarf_size, elferr;
5126 
5127 	printf("\nContents of the .debug_pubnames section:\n");
5128 
5129 	s = NULL;
5130 	for (i = 0; (size_t) i < re->shnum; i++) {
5131 		s = &re->sl[i];
5132 		if (s->name != NULL && !strcmp(s->name, ".debug_pubnames"))
5133 			break;
5134 	}
5135 	if ((size_t) i >= re->shnum)
5136 		return;
5137 
5138 	(void) elf_errno();
5139 	if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5140 		elferr = elf_errno();
5141 		if (elferr != 0)
5142 			warnx("elf_getdata failed: %s", elf_errmsg(-1));
5143 		return;
5144 	}
5145 	if (d->d_size <= 0)
5146 		return;
5147 
5148 	/* Read in .debug_pubnames section table header. */
5149 	offset = 0;
5150 	length = re->dw_read(d, &offset, 4);
5151 	if (length == 0xffffffff) {
5152 		dwarf_size = 8;
5153 		length = re->dw_read(d, &offset, 8);
5154 	} else
5155 		dwarf_size = 4;
5156 
5157 	if (length > d->d_size - offset) {
5158 		warnx("invalid .dwarf_pubnames section");
5159 		return;
5160 	}
5161 
5162 	nt_version = re->dw_read(d, &offset, 2);
5163 	nt_cu_offset = re->dw_read(d, &offset, dwarf_size);
5164 	nt_cu_length = re->dw_read(d, &offset, dwarf_size);
5165 	printf("  Length:\t\t\t\t%ju\n", (uintmax_t) length);
5166 	printf("  Version:\t\t\t\t%u\n", nt_version);
5167 	printf("  Offset into .debug_info section:\t%ju\n",
5168 	    (uintmax_t) nt_cu_offset);
5169 	printf("  Size of area in .debug_info section:\t%ju\n",
5170 	    (uintmax_t) nt_cu_length);
5171 
5172 	if (dwarf_get_globals(re->dbg, &globs, &cnt, &de) != DW_DLV_OK) {
5173 		warnx("dwarf_get_globals failed: %s", dwarf_errmsg(de));
5174 		return;
5175 	}
5176 
5177 	printf("\n    Offset      Name\n");
5178 	for (i = 0; i < cnt; i++) {
5179 		if (dwarf_globname(globs[i], &glob_name, &de) != DW_DLV_OK) {
5180 			warnx("dwarf_globname failed: %s", dwarf_errmsg(de));
5181 			continue;
5182 		}
5183 		if (dwarf_global_die_offset(globs[i], &die_off, &de) !=
5184 		    DW_DLV_OK) {
5185 			warnx("dwarf_global_die_offset failed: %s",
5186 			    dwarf_errmsg(de));
5187 			continue;
5188 		}
5189 		printf("    %-11ju %s\n", (uintmax_t) die_off, glob_name);
5190 	}
5191 }
5192 
5193 static void
5194 dump_dwarf_aranges(struct readelf *re)
5195 {
5196 	struct section *s;
5197 	Dwarf_Arange *aranges;
5198 	Dwarf_Addr start;
5199 	Dwarf_Unsigned offset, length, as_cu_offset;
5200 	Dwarf_Off die_off;
5201 	Dwarf_Signed cnt;
5202 	Dwarf_Half as_version, as_addrsz, as_segsz;
5203 	Dwarf_Error de;
5204 	Elf_Data *d;
5205 	int i, dwarf_size, elferr;
5206 
5207 	printf("\nContents of section .debug_aranges:\n");
5208 
5209 	s = NULL;
5210 	for (i = 0; (size_t) i < re->shnum; i++) {
5211 		s = &re->sl[i];
5212 		if (s->name != NULL && !strcmp(s->name, ".debug_aranges"))
5213 			break;
5214 	}
5215 	if ((size_t) i >= re->shnum)
5216 		return;
5217 
5218 	(void) elf_errno();
5219 	if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5220 		elferr = elf_errno();
5221 		if (elferr != 0)
5222 			warnx("elf_getdata failed: %s", elf_errmsg(-1));
5223 		return;
5224 	}
5225 	if (d->d_size <= 0)
5226 		return;
5227 
5228 	/* Read in the .debug_aranges section table header. */
5229 	offset = 0;
5230 	length = re->dw_read(d, &offset, 4);
5231 	if (length == 0xffffffff) {
5232 		dwarf_size = 8;
5233 		length = re->dw_read(d, &offset, 8);
5234 	} else
5235 		dwarf_size = 4;
5236 
5237 	if (length > d->d_size - offset) {
5238 		warnx("invalid .dwarf_aranges section");
5239 		return;
5240 	}
5241 
5242 	as_version = re->dw_read(d, &offset, 2);
5243 	as_cu_offset = re->dw_read(d, &offset, dwarf_size);
5244 	as_addrsz = re->dw_read(d, &offset, 1);
5245 	as_segsz = re->dw_read(d, &offset, 1);
5246 
5247 	printf("  Length:\t\t\t%ju\n", (uintmax_t) length);
5248 	printf("  Version:\t\t\t%u\n", as_version);
5249 	printf("  Offset into .debug_info:\t%ju\n", (uintmax_t) as_cu_offset);
5250 	printf("  Pointer Size:\t\t\t%u\n", as_addrsz);
5251 	printf("  Segment Size:\t\t\t%u\n", as_segsz);
5252 
5253 	if (dwarf_get_aranges(re->dbg, &aranges, &cnt, &de) != DW_DLV_OK) {
5254 		warnx("dwarf_get_aranges failed: %s", dwarf_errmsg(de));
5255 		return;
5256 	}
5257 
5258 	printf("\n    Address  Length\n");
5259 	for (i = 0; i < cnt; i++) {
5260 		if (dwarf_get_arange_info(aranges[i], &start, &length,
5261 		    &die_off, &de) != DW_DLV_OK) {
5262 			warnx("dwarf_get_arange_info failed: %s",
5263 			    dwarf_errmsg(de));
5264 			continue;
5265 		}
5266 		printf("    %08jx %ju\n", (uintmax_t) start,
5267 		    (uintmax_t) length);
5268 	}
5269 }
5270 
5271 static void
5272 dump_dwarf_ranges_foreach(struct readelf *re, Dwarf_Die die, Dwarf_Addr base)
5273 {
5274 	Dwarf_Attribute *attr_list;
5275 	Dwarf_Ranges *ranges;
5276 	Dwarf_Die ret_die;
5277 	Dwarf_Error de;
5278 	Dwarf_Addr base0;
5279 	Dwarf_Half attr;
5280 	Dwarf_Signed attr_count, cnt;
5281 	Dwarf_Unsigned off, bytecnt;
5282 	int i, j, ret;
5283 
5284 	if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
5285 	    DW_DLV_OK) {
5286 		if (ret == DW_DLV_ERROR)
5287 			warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
5288 		goto cont_search;
5289 	}
5290 
5291 	for (i = 0; i < attr_count; i++) {
5292 		if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
5293 			warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
5294 			continue;
5295 		}
5296 		if (attr != DW_AT_ranges)
5297 			continue;
5298 		if (dwarf_formudata(attr_list[i], &off, &de) != DW_DLV_OK) {
5299 			warnx("dwarf_formudata failed: %s", dwarf_errmsg(de));
5300 			continue;
5301 		}
5302 		if (dwarf_get_ranges(re->dbg, (Dwarf_Off) off, &ranges, &cnt,
5303 		    &bytecnt, &de) != DW_DLV_OK)
5304 			continue;
5305 		base0 = base;
5306 		for (j = 0; j < cnt; j++) {
5307 			printf("    %08jx ", (uintmax_t) off);
5308 			if (ranges[j].dwr_type == DW_RANGES_END) {
5309 				printf("%s\n", "<End of list>");
5310 				continue;
5311 			} else if (ranges[j].dwr_type ==
5312 			    DW_RANGES_ADDRESS_SELECTION) {
5313 				base0 = ranges[j].dwr_addr2;
5314 				continue;
5315 			}
5316 			if (re->ec == ELFCLASS32)
5317 				printf("%08jx %08jx\n",
5318 				    (uintmax_t) (ranges[j].dwr_addr1 + base0),
5319 				    (uintmax_t) (ranges[j].dwr_addr2 + base0));
5320 			else
5321 				printf("%016jx %016jx\n",
5322 				    (uintmax_t) (ranges[j].dwr_addr1 + base0),
5323 				    (uintmax_t) (ranges[j].dwr_addr2 + base0));
5324 		}
5325 	}
5326 
5327 cont_search:
5328 	/* Search children. */
5329 	ret = dwarf_child(die, &ret_die, &de);
5330 	if (ret == DW_DLV_ERROR)
5331 		warnx("dwarf_child: %s", dwarf_errmsg(de));
5332 	else if (ret == DW_DLV_OK)
5333 		dump_dwarf_ranges_foreach(re, ret_die, base);
5334 
5335 	/* Search sibling. */
5336 	ret = dwarf_siblingof(re->dbg, die, &ret_die, &de);
5337 	if (ret == DW_DLV_ERROR)
5338 		warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
5339 	else if (ret == DW_DLV_OK)
5340 		dump_dwarf_ranges_foreach(re, ret_die, base);
5341 }
5342 
5343 static void
5344 dump_dwarf_ranges(struct readelf *re)
5345 {
5346 	Dwarf_Ranges *ranges;
5347 	Dwarf_Die die;
5348 	Dwarf_Signed cnt;
5349 	Dwarf_Unsigned bytecnt;
5350 	Dwarf_Half tag;
5351 	Dwarf_Error de;
5352 	Dwarf_Unsigned lowpc;
5353 	int ret;
5354 
5355 	if (dwarf_get_ranges(re->dbg, 0, &ranges, &cnt, &bytecnt, &de) !=
5356 	    DW_DLV_OK)
5357 		return;
5358 
5359 	printf("Contents of the .debug_ranges section:\n\n");
5360 	if (re->ec == ELFCLASS32)
5361 		printf("    %-8s %-8s %s\n", "Offset", "Begin", "End");
5362 	else
5363 		printf("    %-8s %-16s %s\n", "Offset", "Begin", "End");
5364 
5365 	while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
5366 	    NULL, &de)) == DW_DLV_OK) {
5367 		die = NULL;
5368 		if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK)
5369 			continue;
5370 		if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
5371 			warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
5372 			continue;
5373 		}
5374 		/* XXX: What about DW_TAG_partial_unit? */
5375 		lowpc = 0;
5376 		if (tag == DW_TAG_compile_unit) {
5377 			if (dwarf_attrval_unsigned(die, DW_AT_low_pc, &lowpc,
5378 			    &de) != DW_DLV_OK)
5379 				lowpc = 0;
5380 		}
5381 
5382 		dump_dwarf_ranges_foreach(re, die, (Dwarf_Addr) lowpc);
5383 	}
5384 	putchar('\n');
5385 }
5386 
5387 static void
5388 dump_dwarf_macinfo(struct readelf *re)
5389 {
5390 	Dwarf_Unsigned offset;
5391 	Dwarf_Signed cnt;
5392 	Dwarf_Macro_Details *md;
5393 	Dwarf_Error de;
5394 	const char *mi_str;
5395 	char unk_mi[32];
5396 	int i;
5397 
5398 #define	_MAX_MACINFO_ENTRY	65535
5399 
5400 	printf("\nContents of section .debug_macinfo:\n\n");
5401 
5402 	offset = 0;
5403 	while (dwarf_get_macro_details(re->dbg, offset, _MAX_MACINFO_ENTRY,
5404 	    &cnt, &md, &de) == DW_DLV_OK) {
5405 		for (i = 0; i < cnt; i++) {
5406 			offset = md[i].dmd_offset + 1;
5407 			if (md[i].dmd_type == 0)
5408 				break;
5409 			if (dwarf_get_MACINFO_name(md[i].dmd_type, &mi_str) !=
5410 			    DW_DLV_OK) {
5411 				snprintf(unk_mi, sizeof(unk_mi),
5412 				    "[Unknown MACINFO: %#x]", md[i].dmd_type);
5413 				mi_str = unk_mi;
5414 			}
5415 			printf(" %s", mi_str);
5416 			switch (md[i].dmd_type) {
5417 			case DW_MACINFO_define:
5418 			case DW_MACINFO_undef:
5419 				printf(" - lineno : %jd macro : %s\n",
5420 				    (intmax_t) md[i].dmd_lineno,
5421 				    md[i].dmd_macro);
5422 				break;
5423 			case DW_MACINFO_start_file:
5424 				printf(" - lineno : %jd filenum : %jd\n",
5425 				    (intmax_t) md[i].dmd_lineno,
5426 				    (intmax_t) md[i].dmd_fileindex);
5427 				break;
5428 			default:
5429 				putchar('\n');
5430 				break;
5431 			}
5432 		}
5433 	}
5434 
5435 #undef	_MAX_MACINFO_ENTRY
5436 }
5437 
5438 static void
5439 dump_dwarf_frame_inst(struct readelf *re, Dwarf_Cie cie, uint8_t *insts,
5440     Dwarf_Unsigned len, Dwarf_Unsigned caf, Dwarf_Signed daf, Dwarf_Addr pc,
5441     Dwarf_Debug dbg)
5442 {
5443 	Dwarf_Frame_Op *oplist;
5444 	Dwarf_Signed opcnt, delta;
5445 	Dwarf_Small op;
5446 	Dwarf_Error de;
5447 	const char *op_str;
5448 	char unk_op[32];
5449 	int i;
5450 
5451 	if (dwarf_expand_frame_instructions(cie, insts, len, &oplist,
5452 	    &opcnt, &de) != DW_DLV_OK) {
5453 		warnx("dwarf_expand_frame_instructions failed: %s",
5454 		    dwarf_errmsg(de));
5455 		return;
5456 	}
5457 
5458 	for (i = 0; i < opcnt; i++) {
5459 		if (oplist[i].fp_base_op != 0)
5460 			op = oplist[i].fp_base_op << 6;
5461 		else
5462 			op = oplist[i].fp_extended_op;
5463 		if (dwarf_get_CFA_name(op, &op_str) != DW_DLV_OK) {
5464 			snprintf(unk_op, sizeof(unk_op), "[Unknown CFA: %#x]",
5465 			    op);
5466 			op_str = unk_op;
5467 		}
5468 		printf("  %s", op_str);
5469 		switch (op) {
5470 		case DW_CFA_advance_loc:
5471 			delta = oplist[i].fp_offset * caf;
5472 			pc += delta;
5473 			printf(": %ju to %08jx", (uintmax_t) delta,
5474 			    (uintmax_t) pc);
5475 			break;
5476 		case DW_CFA_offset:
5477 		case DW_CFA_offset_extended:
5478 		case DW_CFA_offset_extended_sf:
5479 			delta = oplist[i].fp_offset * daf;
5480 			printf(": r%u (%s) at cfa%+jd", oplist[i].fp_register,
5481 			    dwarf_regname(re, oplist[i].fp_register),
5482 			    (intmax_t) delta);
5483 			break;
5484 		case DW_CFA_restore:
5485 			printf(": r%u (%s)", oplist[i].fp_register,
5486 			    dwarf_regname(re, oplist[i].fp_register));
5487 			break;
5488 		case DW_CFA_set_loc:
5489 			pc = oplist[i].fp_offset;
5490 			printf(": to %08jx", (uintmax_t) pc);
5491 			break;
5492 		case DW_CFA_advance_loc1:
5493 		case DW_CFA_advance_loc2:
5494 		case DW_CFA_advance_loc4:
5495 			pc += oplist[i].fp_offset;
5496 			printf(": %jd to %08jx", (intmax_t) oplist[i].fp_offset,
5497 			    (uintmax_t) pc);
5498 			break;
5499 		case DW_CFA_def_cfa:
5500 			printf(": r%u (%s) ofs %ju", oplist[i].fp_register,
5501 			    dwarf_regname(re, oplist[i].fp_register),
5502 			    (uintmax_t) oplist[i].fp_offset);
5503 			break;
5504 		case DW_CFA_def_cfa_sf:
5505 			printf(": r%u (%s) ofs %jd", oplist[i].fp_register,
5506 			    dwarf_regname(re, oplist[i].fp_register),
5507 			    (intmax_t) (oplist[i].fp_offset * daf));
5508 			break;
5509 		case DW_CFA_def_cfa_register:
5510 			printf(": r%u (%s)", oplist[i].fp_register,
5511 			    dwarf_regname(re, oplist[i].fp_register));
5512 			break;
5513 		case DW_CFA_def_cfa_offset:
5514 			printf(": %ju", (uintmax_t) oplist[i].fp_offset);
5515 			break;
5516 		case DW_CFA_def_cfa_offset_sf:
5517 			printf(": %jd", (intmax_t) (oplist[i].fp_offset * daf));
5518 			break;
5519 		default:
5520 			break;
5521 		}
5522 		putchar('\n');
5523 	}
5524 
5525 	dwarf_dealloc(dbg, oplist, DW_DLA_FRAME_BLOCK);
5526 }
5527 
5528 static char *
5529 get_regoff_str(struct readelf *re, Dwarf_Half reg, Dwarf_Addr off)
5530 {
5531 	static char rs[16];
5532 
5533 	if (reg == DW_FRAME_UNDEFINED_VAL || reg == DW_FRAME_REG_INITIAL_VALUE)
5534 		snprintf(rs, sizeof(rs), "%c", 'u');
5535 	else if (reg == DW_FRAME_CFA_COL)
5536 		snprintf(rs, sizeof(rs), "c%+jd", (intmax_t) off);
5537 	else
5538 		snprintf(rs, sizeof(rs), "%s%+jd", dwarf_regname(re, reg),
5539 		    (intmax_t) off);
5540 
5541 	return (rs);
5542 }
5543 
5544 static int
5545 dump_dwarf_frame_regtable(struct readelf *re, Dwarf_Fde fde, Dwarf_Addr pc,
5546     Dwarf_Unsigned func_len, Dwarf_Half cie_ra)
5547 {
5548 	Dwarf_Regtable rt;
5549 	Dwarf_Addr row_pc, end_pc, pre_pc, cur_pc;
5550 	Dwarf_Error de;
5551 	char *vec;
5552 	int i;
5553 
5554 #define BIT_SET(v, n) (v[(n)>>3] |= 1U << ((n) & 7))
5555 #define BIT_CLR(v, n) (v[(n)>>3] &= ~(1U << ((n) & 7)))
5556 #define BIT_ISSET(v, n) (v[(n)>>3] & (1U << ((n) & 7)))
5557 #define	RT(x) rt.rules[(x)]
5558 
5559 	vec = calloc((DW_REG_TABLE_SIZE + 7) / 8, 1);
5560 	if (vec == NULL)
5561 		err(EXIT_FAILURE, "calloc failed");
5562 
5563 	pre_pc = ~((Dwarf_Addr) 0);
5564 	cur_pc = pc;
5565 	end_pc = pc + func_len;
5566 	for (; cur_pc < end_pc; cur_pc++) {
5567 		if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc,
5568 		    &de) != DW_DLV_OK) {
5569 			warnx("dwarf_get_fde_info_for_all_regs failed: %s\n",
5570 			    dwarf_errmsg(de));
5571 			return (-1);
5572 		}
5573 		if (row_pc == pre_pc)
5574 			continue;
5575 		pre_pc = row_pc;
5576 		for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
5577 			if (rt.rules[i].dw_regnum != DW_FRAME_REG_INITIAL_VALUE)
5578 				BIT_SET(vec, i);
5579 		}
5580 	}
5581 
5582 	printf("   LOC   CFA      ");
5583 	for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
5584 		if (BIT_ISSET(vec, i)) {
5585 			if ((Dwarf_Half) i == cie_ra)
5586 				printf("ra   ");
5587 			else
5588 				printf("%-5s",
5589 				    dwarf_regname(re, (unsigned int) i));
5590 		}
5591 	}
5592 	putchar('\n');
5593 
5594 	pre_pc = ~((Dwarf_Addr) 0);
5595 	cur_pc = pc;
5596 	end_pc = pc + func_len;
5597 	for (; cur_pc < end_pc; cur_pc++) {
5598 		if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc,
5599 		    &de) != DW_DLV_OK) {
5600 			warnx("dwarf_get_fde_info_for_all_regs failed: %s\n",
5601 			    dwarf_errmsg(de));
5602 			return (-1);
5603 		}
5604 		if (row_pc == pre_pc)
5605 			continue;
5606 		pre_pc = row_pc;
5607 		printf("%08jx ", (uintmax_t) row_pc);
5608 		printf("%-8s ", get_regoff_str(re, RT(0).dw_regnum,
5609 		    RT(0).dw_offset));
5610 		for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
5611 			if (BIT_ISSET(vec, i)) {
5612 				printf("%-5s", get_regoff_str(re,
5613 				    RT(i).dw_regnum, RT(i).dw_offset));
5614 			}
5615 		}
5616 		putchar('\n');
5617 	}
5618 
5619 	free(vec);
5620 
5621 	return (0);
5622 
5623 #undef	BIT_SET
5624 #undef	BIT_CLR
5625 #undef	BIT_ISSET
5626 #undef	RT
5627 }
5628 
5629 static void
5630 dump_dwarf_frame_section(struct readelf *re, struct section *s, int alt)
5631 {
5632 	Dwarf_Cie *cie_list, cie, pre_cie;
5633 	Dwarf_Fde *fde_list, fde;
5634 	Dwarf_Off cie_offset, fde_offset;
5635 	Dwarf_Unsigned cie_length, fde_instlen;
5636 	Dwarf_Unsigned cie_caf, cie_daf, cie_instlen, func_len, fde_length;
5637 	Dwarf_Signed cie_count, fde_count, cie_index;
5638 	Dwarf_Addr low_pc;
5639 	Dwarf_Half cie_ra;
5640 	Dwarf_Small cie_version;
5641 	Dwarf_Ptr fde_addr, fde_inst, cie_inst;
5642 	char *cie_aug, c;
5643 	int i, eh_frame;
5644 	Dwarf_Error de;
5645 
5646 	printf("\nThe section %s contains:\n\n", s->name);
5647 
5648 	if (!strcmp(s->name, ".debug_frame")) {
5649 		eh_frame = 0;
5650 		if (dwarf_get_fde_list(re->dbg, &cie_list, &cie_count,
5651 		    &fde_list, &fde_count, &de) != DW_DLV_OK) {
5652 			warnx("dwarf_get_fde_list failed: %s",
5653 			    dwarf_errmsg(de));
5654 			return;
5655 		}
5656 	} else if (!strcmp(s->name, ".eh_frame")) {
5657 		eh_frame = 1;
5658 		if (dwarf_get_fde_list_eh(re->dbg, &cie_list, &cie_count,
5659 		    &fde_list, &fde_count, &de) != DW_DLV_OK) {
5660 			warnx("dwarf_get_fde_list_eh failed: %s",
5661 			    dwarf_errmsg(de));
5662 			return;
5663 		}
5664 	} else
5665 		return;
5666 
5667 	pre_cie = NULL;
5668 	for (i = 0; i < fde_count; i++) {
5669 		if (dwarf_get_fde_n(fde_list, i, &fde, &de) != DW_DLV_OK) {
5670 			warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de));
5671 			continue;
5672 		}
5673 		if (dwarf_get_cie_of_fde(fde, &cie, &de) != DW_DLV_OK) {
5674 			warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de));
5675 			continue;
5676 		}
5677 		if (dwarf_get_fde_range(fde, &low_pc, &func_len, &fde_addr,
5678 		    &fde_length, &cie_offset, &cie_index, &fde_offset,
5679 		    &de) != DW_DLV_OK) {
5680 			warnx("dwarf_get_fde_range failed: %s",
5681 			    dwarf_errmsg(de));
5682 			continue;
5683 		}
5684 		if (dwarf_get_fde_instr_bytes(fde, &fde_inst, &fde_instlen,
5685 		    &de) != DW_DLV_OK) {
5686 			warnx("dwarf_get_fde_instr_bytes failed: %s",
5687 			    dwarf_errmsg(de));
5688 			continue;
5689 		}
5690 		if (pre_cie == NULL || cie != pre_cie) {
5691 			pre_cie = cie;
5692 			if (dwarf_get_cie_info(cie, &cie_length, &cie_version,
5693 			    &cie_aug, &cie_caf, &cie_daf, &cie_ra,
5694 			    &cie_inst, &cie_instlen, &de) != DW_DLV_OK) {
5695 				warnx("dwarf_get_cie_info failed: %s",
5696 				    dwarf_errmsg(de));
5697 				continue;
5698 			}
5699 			printf("%08jx %08jx %8.8jx CIE",
5700 			    (uintmax_t) cie_offset,
5701 			    (uintmax_t) cie_length,
5702 			    (uintmax_t) (eh_frame ? 0 : ~0U));
5703 			if (!alt) {
5704 				putchar('\n');
5705 				printf("  Version:\t\t\t%u\n", cie_version);
5706 				printf("  Augmentation:\t\t\t\"");
5707 				while ((c = *cie_aug++) != '\0')
5708 					putchar(c);
5709 				printf("\"\n");
5710 				printf("  Code alignment factor:\t%ju\n",
5711 				    (uintmax_t) cie_caf);
5712 				printf("  Data alignment factor:\t%jd\n",
5713 				    (intmax_t) cie_daf);
5714 				printf("  Return address column:\t%ju\n",
5715 				    (uintmax_t) cie_ra);
5716 				putchar('\n');
5717 				dump_dwarf_frame_inst(re, cie, cie_inst,
5718 				    cie_instlen, cie_caf, cie_daf, 0,
5719 				    re->dbg);
5720 				putchar('\n');
5721 			} else {
5722 				printf(" \"");
5723 				while ((c = *cie_aug++) != '\0')
5724 					putchar(c);
5725 				putchar('"');
5726 				printf(" cf=%ju df=%jd ra=%ju\n",
5727 				    (uintmax_t) cie_caf,
5728 				    (uintmax_t) cie_daf,
5729 				    (uintmax_t) cie_ra);
5730 				dump_dwarf_frame_regtable(re, fde, low_pc, 1,
5731 				    cie_ra);
5732 				putchar('\n');
5733 			}
5734 		}
5735 		printf("%08jx %08jx %08jx FDE cie=%08jx pc=%08jx..%08jx\n",
5736 		    (uintmax_t) fde_offset, (uintmax_t) fde_length,
5737 		    (uintmax_t) cie_offset,
5738 		    (uintmax_t) (eh_frame ? fde_offset + 4 - cie_offset :
5739 			cie_offset),
5740 		    (uintmax_t) low_pc, (uintmax_t) (low_pc + func_len));
5741 		if (!alt)
5742 			dump_dwarf_frame_inst(re, cie, fde_inst, fde_instlen,
5743 			    cie_caf, cie_daf, low_pc, re->dbg);
5744 		else
5745 			dump_dwarf_frame_regtable(re, fde, low_pc, func_len,
5746 			    cie_ra);
5747 		putchar('\n');
5748 	}
5749 }
5750 
5751 static void
5752 dump_dwarf_frame(struct readelf *re, int alt)
5753 {
5754 	struct section *s;
5755 	int i;
5756 
5757 	(void) dwarf_set_frame_cfa_value(re->dbg, DW_FRAME_CFA_COL);
5758 
5759 	for (i = 0; (size_t) i < re->shnum; i++) {
5760 		s = &re->sl[i];
5761 		if (s->name != NULL && (!strcmp(s->name, ".debug_frame") ||
5762 		    !strcmp(s->name, ".eh_frame")))
5763 			dump_dwarf_frame_section(re, s, alt);
5764 	}
5765 }
5766 
5767 static void
5768 dump_dwarf_str(struct readelf *re)
5769 {
5770 	struct section *s;
5771 	Elf_Data *d;
5772 	unsigned char *p;
5773 	int elferr, end, i, j;
5774 
5775 	printf("\nContents of section .debug_str:\n");
5776 
5777 	s = NULL;
5778 	for (i = 0; (size_t) i < re->shnum; i++) {
5779 		s = &re->sl[i];
5780 		if (s->name != NULL && !strcmp(s->name, ".debug_str"))
5781 			break;
5782 	}
5783 	if ((size_t) i >= re->shnum)
5784 		return;
5785 
5786 	(void) elf_errno();
5787 	if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5788 		elferr = elf_errno();
5789 		if (elferr != 0)
5790 			warnx("elf_getdata failed: %s", elf_errmsg(-1));
5791 		return;
5792 	}
5793 	if (d->d_size <= 0)
5794 		return;
5795 
5796 	for (i = 0, p = d->d_buf; (size_t) i < d->d_size; i += 16) {
5797 		printf("  0x%08x", (unsigned int) i);
5798 		if ((size_t) i + 16 > d->d_size)
5799 			end = d->d_size;
5800 		else
5801 			end = i + 16;
5802 		for (j = i; j < i + 16; j++) {
5803 			if ((j - i) % 4 == 0)
5804 				putchar(' ');
5805 			if (j >= end) {
5806 				printf("  ");
5807 				continue;
5808 			}
5809 			printf("%02x", (uint8_t) p[j]);
5810 		}
5811 		putchar(' ');
5812 		for (j = i; j < end; j++) {
5813 			if (isprint(p[j]))
5814 				putchar(p[j]);
5815 			else if (p[j] == 0)
5816 				putchar('.');
5817 			else
5818 				putchar(' ');
5819 		}
5820 		putchar('\n');
5821 	}
5822 }
5823 
5824 struct loc_at {
5825 	Dwarf_Attribute la_at;
5826 	Dwarf_Unsigned la_off;
5827 	Dwarf_Unsigned la_lowpc;
5828 	Dwarf_Half la_cu_psize;
5829 	Dwarf_Half la_cu_osize;
5830 	Dwarf_Half la_cu_ver;
5831 	TAILQ_ENTRY(loc_at) la_next;
5832 };
5833 
5834 static TAILQ_HEAD(, loc_at) lalist = TAILQ_HEAD_INITIALIZER(lalist);
5835 
5836 static void
5837 search_loclist_at(struct readelf *re, Dwarf_Die die, Dwarf_Unsigned lowpc)
5838 {
5839 	Dwarf_Attribute *attr_list;
5840 	Dwarf_Die ret_die;
5841 	Dwarf_Unsigned off;
5842 	Dwarf_Off ref;
5843 	Dwarf_Signed attr_count;
5844 	Dwarf_Half attr, form;
5845 	Dwarf_Bool is_info;
5846 	Dwarf_Error de;
5847 	struct loc_at *la, *nla;
5848 	int i, ret;
5849 
5850 	is_info = dwarf_get_die_infotypes_flag(die);
5851 
5852 	if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
5853 	    DW_DLV_OK) {
5854 		if (ret == DW_DLV_ERROR)
5855 			warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
5856 		goto cont_search;
5857 	}
5858 	for (i = 0; i < attr_count; i++) {
5859 		if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
5860 			warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
5861 			continue;
5862 		}
5863 		if (attr != DW_AT_location &&
5864 		    attr != DW_AT_string_length &&
5865 		    attr != DW_AT_return_addr &&
5866 		    attr != DW_AT_data_member_location &&
5867 		    attr != DW_AT_frame_base &&
5868 		    attr != DW_AT_segment &&
5869 		    attr != DW_AT_static_link &&
5870 		    attr != DW_AT_use_location &&
5871 		    attr != DW_AT_vtable_elem_location)
5872 			continue;
5873 		if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) {
5874 			warnx("dwarf_whatform failed: %s", dwarf_errmsg(de));
5875 			continue;
5876 		}
5877 		if (form == DW_FORM_data4 || form == DW_FORM_data8) {
5878 			if (dwarf_formudata(attr_list[i], &off, &de) !=
5879 			    DW_DLV_OK) {
5880 				warnx("dwarf_formudata failed: %s",
5881 				    dwarf_errmsg(de));
5882 				continue;
5883 			}
5884 		} else if (form == DW_FORM_sec_offset) {
5885 			if (dwarf_global_formref(attr_list[i], &ref, &de) !=
5886 			    DW_DLV_OK) {
5887 				warnx("dwarf_global_formref failed: %s",
5888 				    dwarf_errmsg(de));
5889 				continue;
5890 			}
5891 			off = ref;
5892 		} else
5893 			continue;
5894 
5895 		TAILQ_FOREACH(la, &lalist, la_next) {
5896 			if (off == la->la_off)
5897 				break;
5898 			if (off < la->la_off) {
5899 				if ((nla = malloc(sizeof(*nla))) == NULL)
5900 					err(EXIT_FAILURE, "malloc failed");
5901 				nla->la_at = attr_list[i];
5902 				nla->la_off = off;
5903 				nla->la_lowpc = lowpc;
5904 				nla->la_cu_psize = re->cu_psize;
5905 				nla->la_cu_osize = re->cu_osize;
5906 				nla->la_cu_ver = re->cu_ver;
5907 				TAILQ_INSERT_BEFORE(la, nla, la_next);
5908 				break;
5909 			}
5910 		}
5911 		if (la == NULL) {
5912 			if ((nla = malloc(sizeof(*nla))) == NULL)
5913 				err(EXIT_FAILURE, "malloc failed");
5914 			nla->la_at = attr_list[i];
5915 			nla->la_off = off;
5916 			nla->la_lowpc = lowpc;
5917 			nla->la_cu_psize = re->cu_psize;
5918 			nla->la_cu_osize = re->cu_osize;
5919 			nla->la_cu_ver = re->cu_ver;
5920 			TAILQ_INSERT_TAIL(&lalist, nla, la_next);
5921 		}
5922 	}
5923 
5924 cont_search:
5925 	/* Search children. */
5926 	ret = dwarf_child(die, &ret_die, &de);
5927 	if (ret == DW_DLV_ERROR)
5928 		warnx("dwarf_child: %s", dwarf_errmsg(de));
5929 	else if (ret == DW_DLV_OK)
5930 		search_loclist_at(re, ret_die, lowpc);
5931 
5932 	/* Search sibling. */
5933 	ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de);
5934 	if (ret == DW_DLV_ERROR)
5935 		warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
5936 	else if (ret == DW_DLV_OK)
5937 		search_loclist_at(re, ret_die, lowpc);
5938 }
5939 
5940 static void
5941 dump_dwarf_loc(struct readelf *re, Dwarf_Loc *lr)
5942 {
5943 	const char *op_str;
5944 	char unk_op[32];
5945 	uint8_t *b, n;
5946 	int i;
5947 
5948 	if (dwarf_get_OP_name(lr->lr_atom, &op_str) !=
5949 	    DW_DLV_OK) {
5950 		snprintf(unk_op, sizeof(unk_op),
5951 		    "[Unknown OP: %#x]", lr->lr_atom);
5952 		op_str = unk_op;
5953 	}
5954 
5955 	printf("%s", op_str);
5956 
5957 	switch (lr->lr_atom) {
5958 	case DW_OP_reg0:
5959 	case DW_OP_reg1:
5960 	case DW_OP_reg2:
5961 	case DW_OP_reg3:
5962 	case DW_OP_reg4:
5963 	case DW_OP_reg5:
5964 	case DW_OP_reg6:
5965 	case DW_OP_reg7:
5966 	case DW_OP_reg8:
5967 	case DW_OP_reg9:
5968 	case DW_OP_reg10:
5969 	case DW_OP_reg11:
5970 	case DW_OP_reg12:
5971 	case DW_OP_reg13:
5972 	case DW_OP_reg14:
5973 	case DW_OP_reg15:
5974 	case DW_OP_reg16:
5975 	case DW_OP_reg17:
5976 	case DW_OP_reg18:
5977 	case DW_OP_reg19:
5978 	case DW_OP_reg20:
5979 	case DW_OP_reg21:
5980 	case DW_OP_reg22:
5981 	case DW_OP_reg23:
5982 	case DW_OP_reg24:
5983 	case DW_OP_reg25:
5984 	case DW_OP_reg26:
5985 	case DW_OP_reg27:
5986 	case DW_OP_reg28:
5987 	case DW_OP_reg29:
5988 	case DW_OP_reg30:
5989 	case DW_OP_reg31:
5990 		printf(" (%s)", dwarf_regname(re, lr->lr_atom - DW_OP_reg0));
5991 		break;
5992 
5993 	case DW_OP_deref:
5994 	case DW_OP_lit0:
5995 	case DW_OP_lit1:
5996 	case DW_OP_lit2:
5997 	case DW_OP_lit3:
5998 	case DW_OP_lit4:
5999 	case DW_OP_lit5:
6000 	case DW_OP_lit6:
6001 	case DW_OP_lit7:
6002 	case DW_OP_lit8:
6003 	case DW_OP_lit9:
6004 	case DW_OP_lit10:
6005 	case DW_OP_lit11:
6006 	case DW_OP_lit12:
6007 	case DW_OP_lit13:
6008 	case DW_OP_lit14:
6009 	case DW_OP_lit15:
6010 	case DW_OP_lit16:
6011 	case DW_OP_lit17:
6012 	case DW_OP_lit18:
6013 	case DW_OP_lit19:
6014 	case DW_OP_lit20:
6015 	case DW_OP_lit21:
6016 	case DW_OP_lit22:
6017 	case DW_OP_lit23:
6018 	case DW_OP_lit24:
6019 	case DW_OP_lit25:
6020 	case DW_OP_lit26:
6021 	case DW_OP_lit27:
6022 	case DW_OP_lit28:
6023 	case DW_OP_lit29:
6024 	case DW_OP_lit30:
6025 	case DW_OP_lit31:
6026 	case DW_OP_dup:
6027 	case DW_OP_drop:
6028 	case DW_OP_over:
6029 	case DW_OP_swap:
6030 	case DW_OP_rot:
6031 	case DW_OP_xderef:
6032 	case DW_OP_abs:
6033 	case DW_OP_and:
6034 	case DW_OP_div:
6035 	case DW_OP_minus:
6036 	case DW_OP_mod:
6037 	case DW_OP_mul:
6038 	case DW_OP_neg:
6039 	case DW_OP_not:
6040 	case DW_OP_or:
6041 	case DW_OP_plus:
6042 	case DW_OP_shl:
6043 	case DW_OP_shr:
6044 	case DW_OP_shra:
6045 	case DW_OP_xor:
6046 	case DW_OP_eq:
6047 	case DW_OP_ge:
6048 	case DW_OP_gt:
6049 	case DW_OP_le:
6050 	case DW_OP_lt:
6051 	case DW_OP_ne:
6052 	case DW_OP_nop:
6053 	case DW_OP_push_object_address:
6054 	case DW_OP_form_tls_address:
6055 	case DW_OP_call_frame_cfa:
6056 	case DW_OP_stack_value:
6057 	case DW_OP_GNU_push_tls_address:
6058 	case DW_OP_GNU_uninit:
6059 		break;
6060 
6061 	case DW_OP_const1u:
6062 	case DW_OP_pick:
6063 	case DW_OP_deref_size:
6064 	case DW_OP_xderef_size:
6065 	case DW_OP_const2u:
6066 	case DW_OP_bra:
6067 	case DW_OP_skip:
6068 	case DW_OP_const4u:
6069 	case DW_OP_const8u:
6070 	case DW_OP_constu:
6071 	case DW_OP_plus_uconst:
6072 	case DW_OP_regx:
6073 	case DW_OP_piece:
6074 		printf(": %ju", (uintmax_t)
6075 		    lr->lr_number);
6076 		break;
6077 
6078 	case DW_OP_const1s:
6079 	case DW_OP_const2s:
6080 	case DW_OP_const4s:
6081 	case DW_OP_const8s:
6082 	case DW_OP_consts:
6083 		printf(": %jd", (intmax_t)
6084 		    lr->lr_number);
6085 		break;
6086 
6087 	case DW_OP_breg0:
6088 	case DW_OP_breg1:
6089 	case DW_OP_breg2:
6090 	case DW_OP_breg3:
6091 	case DW_OP_breg4:
6092 	case DW_OP_breg5:
6093 	case DW_OP_breg6:
6094 	case DW_OP_breg7:
6095 	case DW_OP_breg8:
6096 	case DW_OP_breg9:
6097 	case DW_OP_breg10:
6098 	case DW_OP_breg11:
6099 	case DW_OP_breg12:
6100 	case DW_OP_breg13:
6101 	case DW_OP_breg14:
6102 	case DW_OP_breg15:
6103 	case DW_OP_breg16:
6104 	case DW_OP_breg17:
6105 	case DW_OP_breg18:
6106 	case DW_OP_breg19:
6107 	case DW_OP_breg20:
6108 	case DW_OP_breg21:
6109 	case DW_OP_breg22:
6110 	case DW_OP_breg23:
6111 	case DW_OP_breg24:
6112 	case DW_OP_breg25:
6113 	case DW_OP_breg26:
6114 	case DW_OP_breg27:
6115 	case DW_OP_breg28:
6116 	case DW_OP_breg29:
6117 	case DW_OP_breg30:
6118 	case DW_OP_breg31:
6119 		printf(" (%s): %jd",
6120 		    dwarf_regname(re, lr->lr_atom - DW_OP_breg0),
6121 		    (intmax_t) lr->lr_number);
6122 		break;
6123 
6124 	case DW_OP_fbreg:
6125 		printf(": %jd", (intmax_t)
6126 		    lr->lr_number);
6127 		break;
6128 
6129 	case DW_OP_bregx:
6130 		printf(": %ju (%s) %jd",
6131 		    (uintmax_t) lr->lr_number,
6132 		    dwarf_regname(re, (unsigned int) lr->lr_number),
6133 		    (intmax_t) lr->lr_number2);
6134 		break;
6135 
6136 	case DW_OP_addr:
6137 	case DW_OP_GNU_encoded_addr:
6138 		printf(": %#jx", (uintmax_t)
6139 		    lr->lr_number);
6140 		break;
6141 
6142 	case DW_OP_GNU_implicit_pointer:
6143 		printf(": <0x%jx> %jd", (uintmax_t) lr->lr_number,
6144 		    (intmax_t) lr->lr_number2);
6145 		break;
6146 
6147 	case DW_OP_implicit_value:
6148 		printf(": %ju byte block:", (uintmax_t) lr->lr_number);
6149 		b = (uint8_t *)(uintptr_t) lr->lr_number2;
6150 		for (i = 0; (Dwarf_Unsigned) i < lr->lr_number; i++)
6151 			printf(" %x", b[i]);
6152 		break;
6153 
6154 	case DW_OP_GNU_entry_value:
6155 		printf(": (");
6156 		dump_dwarf_block(re, (uint8_t *)(uintptr_t) lr->lr_number2,
6157 		    lr->lr_number);
6158 		putchar(')');
6159 		break;
6160 
6161 	case DW_OP_GNU_const_type:
6162 		printf(": <0x%jx> ", (uintmax_t) lr->lr_number);
6163 		b = (uint8_t *)(uintptr_t) lr->lr_number2;
6164 		n = *b;
6165 		for (i = 1; (uint8_t) i < n; i++)
6166 			printf(" %x", b[i]);
6167 		break;
6168 
6169 	case DW_OP_GNU_regval_type:
6170 		printf(": %ju (%s) <0x%jx>", (uintmax_t) lr->lr_number,
6171 		    dwarf_regname(re, (unsigned int) lr->lr_number),
6172 		    (uintmax_t) lr->lr_number2);
6173 		break;
6174 
6175 	case DW_OP_GNU_convert:
6176 	case DW_OP_GNU_deref_type:
6177 	case DW_OP_GNU_parameter_ref:
6178 	case DW_OP_GNU_reinterpret:
6179 		printf(": <0x%jx>", (uintmax_t) lr->lr_number);
6180 		break;
6181 
6182 	default:
6183 		break;
6184 	}
6185 }
6186 
6187 static void
6188 dump_dwarf_block(struct readelf *re, uint8_t *b, Dwarf_Unsigned len)
6189 {
6190 	Dwarf_Locdesc *llbuf;
6191 	Dwarf_Signed lcnt;
6192 	Dwarf_Error de;
6193 	int i;
6194 
6195 	if (dwarf_loclist_from_expr_b(re->dbg, b, len, re->cu_psize,
6196 	    re->cu_osize, re->cu_ver, &llbuf, &lcnt, &de) != DW_DLV_OK) {
6197 		warnx("dwarf_loclist_form_expr_b: %s", dwarf_errmsg(de));
6198 		return;
6199 	}
6200 
6201 	for (i = 0; (Dwarf_Half) i < llbuf->ld_cents; i++) {
6202 		dump_dwarf_loc(re, &llbuf->ld_s[i]);
6203 		if (i < llbuf->ld_cents - 1)
6204 			printf("; ");
6205 	}
6206 
6207 	dwarf_dealloc(re->dbg, llbuf->ld_s, DW_DLA_LOC_BLOCK);
6208 	dwarf_dealloc(re->dbg, llbuf, DW_DLA_LOCDESC);
6209 }
6210 
6211 static void
6212 dump_dwarf_loclist(struct readelf *re)
6213 {
6214 	Dwarf_Die die;
6215 	Dwarf_Locdesc **llbuf;
6216 	Dwarf_Unsigned lowpc;
6217 	Dwarf_Signed lcnt;
6218 	Dwarf_Half tag, version, pointer_size, off_size;
6219 	Dwarf_Error de;
6220 	struct loc_at *la;
6221 	int i, j, ret;
6222 
6223 	printf("\nContents of section .debug_loc:\n");
6224 
6225 	/* Search .debug_info section. */
6226 	while ((ret = dwarf_next_cu_header_b(re->dbg, NULL, &version, NULL,
6227 	    &pointer_size, &off_size, NULL, NULL, &de)) == DW_DLV_OK) {
6228 		set_cu_context(re, pointer_size, off_size, version);
6229 		die = NULL;
6230 		if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK)
6231 			continue;
6232 		if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
6233 			warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
6234 			continue;
6235 		}
6236 		/* XXX: What about DW_TAG_partial_unit? */
6237 		lowpc = 0;
6238 		if (tag == DW_TAG_compile_unit) {
6239 			if (dwarf_attrval_unsigned(die, DW_AT_low_pc,
6240 				&lowpc, &de) != DW_DLV_OK)
6241 				lowpc = 0;
6242 		}
6243 
6244 		/* Search attributes for reference to .debug_loc section. */
6245 		search_loclist_at(re, die, lowpc);
6246 	}
6247 	if (ret == DW_DLV_ERROR)
6248 		warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
6249 
6250 	/* Search .debug_types section. */
6251 	do {
6252 		while ((ret = dwarf_next_cu_header_c(re->dbg, 0, NULL,
6253 		    &version, NULL, &pointer_size, &off_size, NULL, NULL,
6254 		    NULL, NULL, &de)) == DW_DLV_OK) {
6255 			set_cu_context(re, pointer_size, off_size, version);
6256 			die = NULL;
6257 			if (dwarf_siblingof(re->dbg, die, &die, &de) !=
6258 			    DW_DLV_OK)
6259 				continue;
6260 			if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
6261 				warnx("dwarf_tag failed: %s",
6262 				    dwarf_errmsg(de));
6263 				continue;
6264 			}
6265 
6266 			lowpc = 0;
6267 			if (tag == DW_TAG_type_unit) {
6268 				if (dwarf_attrval_unsigned(die, DW_AT_low_pc,
6269 				    &lowpc, &de) != DW_DLV_OK)
6270 					lowpc = 0;
6271 			}
6272 
6273 			/*
6274 			 * Search attributes for reference to .debug_loc
6275 			 * section.
6276 			 */
6277 			search_loclist_at(re, die, lowpc);
6278 		}
6279 		if (ret == DW_DLV_ERROR)
6280 			warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
6281 	} while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK);
6282 
6283 	if (TAILQ_EMPTY(&lalist))
6284 		return;
6285 
6286 	printf("    Offset   Begin    End      Expression\n");
6287 
6288 	TAILQ_FOREACH(la, &lalist, la_next) {
6289 		if (dwarf_loclist_n(la->la_at, &llbuf, &lcnt, &de) !=
6290 		    DW_DLV_OK) {
6291 			warnx("dwarf_loclist_n failed: %s", dwarf_errmsg(de));
6292 			continue;
6293 		}
6294 		set_cu_context(re, la->la_cu_psize, la->la_cu_osize,
6295 		    la->la_cu_ver);
6296 		for (i = 0; i < lcnt; i++) {
6297 			printf("    %8.8jx ", (uintmax_t) la->la_off);
6298 			if (llbuf[i]->ld_lopc == 0 && llbuf[i]->ld_hipc == 0) {
6299 				printf("<End of list>\n");
6300 				continue;
6301 			}
6302 
6303 			/* TODO: handle base selection entry. */
6304 
6305 			printf("%8.8jx %8.8jx ",
6306 			    (uintmax_t) (la->la_lowpc + llbuf[i]->ld_lopc),
6307 			    (uintmax_t) (la->la_lowpc + llbuf[i]->ld_hipc));
6308 
6309 			putchar('(');
6310 			for (j = 0; (Dwarf_Half) j < llbuf[i]->ld_cents; j++) {
6311 				dump_dwarf_loc(re, &llbuf[i]->ld_s[j]);
6312 				if (j < llbuf[i]->ld_cents - 1)
6313 					printf("; ");
6314 			}
6315 			putchar(')');
6316 
6317 			if (llbuf[i]->ld_lopc == llbuf[i]->ld_hipc)
6318 				printf(" (start == end)");
6319 			putchar('\n');
6320 		}
6321 		for (i = 0; i < lcnt; i++) {
6322 			dwarf_dealloc(re->dbg, llbuf[i]->ld_s,
6323 			    DW_DLA_LOC_BLOCK);
6324 			dwarf_dealloc(re->dbg, llbuf[i], DW_DLA_LOCDESC);
6325 		}
6326 		dwarf_dealloc(re->dbg, llbuf, DW_DLA_LIST);
6327 	}
6328 }
6329 
6330 /*
6331  * Retrieve a string using string table section index and the string offset.
6332  */
6333 static const char*
6334 get_string(struct readelf *re, int strtab, size_t off)
6335 {
6336 	const char *name;
6337 
6338 	if ((name = elf_strptr(re->elf, strtab, off)) == NULL)
6339 		return ("");
6340 
6341 	return (name);
6342 }
6343 
6344 /*
6345  * Retrieve the name of a symbol using the section index of the symbol
6346  * table and the index of the symbol within that table.
6347  */
6348 static const char *
6349 get_symbol_name(struct readelf *re, int symtab, int i)
6350 {
6351 	struct section	*s;
6352 	const char	*name;
6353 	GElf_Sym	 sym;
6354 	Elf_Data	*data;
6355 	int		 elferr;
6356 
6357 	s = &re->sl[symtab];
6358 	if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM)
6359 		return ("");
6360 	(void) elf_errno();
6361 	if ((data = elf_getdata(s->scn, NULL)) == NULL) {
6362 		elferr = elf_errno();
6363 		if (elferr != 0)
6364 			warnx("elf_getdata failed: %s", elf_errmsg(elferr));
6365 		return ("");
6366 	}
6367 	if (gelf_getsym(data, i, &sym) != &sym)
6368 		return ("");
6369 	/* Return section name for STT_SECTION symbol. */
6370 	if (GELF_ST_TYPE(sym.st_info) == STT_SECTION) {
6371 		if (sym.st_shndx < re->shnum &&
6372 		    re->sl[sym.st_shndx].name != NULL)
6373 			return (re->sl[sym.st_shndx].name);
6374 		return ("");
6375 	}
6376 	if (s->link >= re->shnum ||
6377 	    (name = elf_strptr(re->elf, s->link, sym.st_name)) == NULL)
6378 		return ("");
6379 
6380 	return (name);
6381 }
6382 
6383 static uint64_t
6384 get_symbol_value(struct readelf *re, int symtab, int i)
6385 {
6386 	struct section	*s;
6387 	GElf_Sym	 sym;
6388 	Elf_Data	*data;
6389 	int		 elferr;
6390 
6391 	s = &re->sl[symtab];
6392 	if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM)
6393 		return (0);
6394 	(void) elf_errno();
6395 	if ((data = elf_getdata(s->scn, NULL)) == NULL) {
6396 		elferr = elf_errno();
6397 		if (elferr != 0)
6398 			warnx("elf_getdata failed: %s", elf_errmsg(elferr));
6399 		return (0);
6400 	}
6401 	if (gelf_getsym(data, i, &sym) != &sym)
6402 		return (0);
6403 
6404 	return (sym.st_value);
6405 }
6406 
6407 static void
6408 hex_dump(struct readelf *re)
6409 {
6410 	struct section *s;
6411 	Elf_Data *d;
6412 	uint8_t *buf;
6413 	size_t sz, nbytes;
6414 	uint64_t addr;
6415 	int elferr, i, j;
6416 
6417 	for (i = 1; (size_t) i < re->shnum; i++) {
6418 		s = &re->sl[i];
6419 		if (find_dumpop(re, (size_t) i, s->name, HEX_DUMP, -1) == NULL)
6420 			continue;
6421 		(void) elf_errno();
6422 		if ((d = elf_getdata(s->scn, NULL)) == NULL &&
6423 		    (d = elf_rawdata(s->scn, NULL)) == NULL) {
6424 			elferr = elf_errno();
6425 			if (elferr != 0)
6426 				warnx("elf_getdata failed: %s",
6427 				    elf_errmsg(elferr));
6428 			continue;
6429 		}
6430 		(void) elf_errno();
6431 		if (d->d_size <= 0 || d->d_buf == NULL) {
6432 			printf("\nSection '%s' has no data to dump.\n",
6433 			    s->name);
6434 			continue;
6435 		}
6436 		buf = d->d_buf;
6437 		sz = d->d_size;
6438 		addr = s->addr;
6439 		printf("\nHex dump of section '%s':\n", s->name);
6440 		while (sz > 0) {
6441 			printf("  0x%8.8jx ", (uintmax_t)addr);
6442 			nbytes = sz > 16? 16 : sz;
6443 			for (j = 0; j < 16; j++) {
6444 				if ((size_t)j < nbytes)
6445 					printf("%2.2x", buf[j]);
6446 				else
6447 					printf("  ");
6448 				if ((j & 3) == 3)
6449 					printf(" ");
6450 			}
6451 			for (j = 0; (size_t)j < nbytes; j++) {
6452 				if (isprint(buf[j]))
6453 					printf("%c", buf[j]);
6454 				else
6455 					printf(".");
6456 			}
6457 			printf("\n");
6458 			buf += nbytes;
6459 			addr += nbytes;
6460 			sz -= nbytes;
6461 		}
6462 	}
6463 }
6464 
6465 static void
6466 str_dump(struct readelf *re)
6467 {
6468 	struct section *s;
6469 	Elf_Data *d;
6470 	unsigned char *start, *end, *buf_end;
6471 	unsigned int len;
6472 	int i, j, elferr, found;
6473 
6474 	for (i = 1; (size_t) i < re->shnum; i++) {
6475 		s = &re->sl[i];
6476 		if (find_dumpop(re, (size_t) i, s->name, STR_DUMP, -1) == NULL)
6477 			continue;
6478 		(void) elf_errno();
6479 		if ((d = elf_getdata(s->scn, NULL)) == NULL &&
6480 		    (d = elf_rawdata(s->scn, NULL)) == NULL) {
6481 			elferr = elf_errno();
6482 			if (elferr != 0)
6483 				warnx("elf_getdata failed: %s",
6484 				    elf_errmsg(elferr));
6485 			continue;
6486 		}
6487 		(void) elf_errno();
6488 		if (d->d_size <= 0 || d->d_buf == NULL) {
6489 			printf("\nSection '%s' has no data to dump.\n",
6490 			    s->name);
6491 			continue;
6492 		}
6493 		buf_end = (unsigned char *) d->d_buf + d->d_size;
6494 		start = (unsigned char *) d->d_buf;
6495 		found = 0;
6496 		printf("\nString dump of section '%s':\n", s->name);
6497 		for (;;) {
6498 			while (start < buf_end && !isprint(*start))
6499 				start++;
6500 			if (start >= buf_end)
6501 				break;
6502 			end = start + 1;
6503 			while (end < buf_end && isprint(*end))
6504 				end++;
6505 			printf("  [%6lx]  ",
6506 			    (long) (start - (unsigned char *) d->d_buf));
6507 			len = end - start;
6508 			for (j = 0; (unsigned int) j < len; j++)
6509 				putchar(start[j]);
6510 			putchar('\n');
6511 			found = 1;
6512 			if (end >= buf_end)
6513 				break;
6514 			start = end + 1;
6515 		}
6516 		if (!found)
6517 			printf("  No strings found in this section.");
6518 		putchar('\n');
6519 	}
6520 }
6521 
6522 static void
6523 load_sections(struct readelf *re)
6524 {
6525 	struct section	*s;
6526 	const char	*name;
6527 	Elf_Scn		*scn;
6528 	GElf_Shdr	 sh;
6529 	size_t		 shstrndx, ndx;
6530 	int		 elferr;
6531 
6532 	/* Allocate storage for internal section list. */
6533 	if (!elf_getshnum(re->elf, &re->shnum)) {
6534 		warnx("elf_getshnum failed: %s", elf_errmsg(-1));
6535 		return;
6536 	}
6537 	if (re->sl != NULL)
6538 		free(re->sl);
6539 	if ((re->sl = calloc(re->shnum, sizeof(*re->sl))) == NULL)
6540 		err(EXIT_FAILURE, "calloc failed");
6541 
6542 	/* Get the index of .shstrtab section. */
6543 	if (!elf_getshstrndx(re->elf, &shstrndx)) {
6544 		warnx("elf_getshstrndx failed: %s", elf_errmsg(-1));
6545 		return;
6546 	}
6547 
6548 	if ((scn = elf_getscn(re->elf, 0)) == NULL)
6549 		return;
6550 
6551 	(void) elf_errno();
6552 	do {
6553 		if (gelf_getshdr(scn, &sh) == NULL) {
6554 			warnx("gelf_getshdr failed: %s", elf_errmsg(-1));
6555 			(void) elf_errno();
6556 			continue;
6557 		}
6558 		if ((name = elf_strptr(re->elf, shstrndx, sh.sh_name)) == NULL) {
6559 			(void) elf_errno();
6560 			name = "<no-name>";
6561 		}
6562 		if ((ndx = elf_ndxscn(scn)) == SHN_UNDEF) {
6563 			if ((elferr = elf_errno()) != 0) {
6564 				warnx("elf_ndxscn failed: %s",
6565 				    elf_errmsg(elferr));
6566 				continue;
6567 			}
6568 		}
6569 		if (ndx >= re->shnum) {
6570 			warnx("section index of '%s' out of range", name);
6571 			continue;
6572 		}
6573 		if (sh.sh_link >= re->shnum)
6574 			warnx("section link %llu of '%s' out of range",
6575 			    (unsigned long long)sh.sh_link, name);
6576 		s = &re->sl[ndx];
6577 		s->name = name;
6578 		s->scn = scn;
6579 		s->off = sh.sh_offset;
6580 		s->sz = sh.sh_size;
6581 		s->entsize = sh.sh_entsize;
6582 		s->align = sh.sh_addralign;
6583 		s->type = sh.sh_type;
6584 		s->flags = sh.sh_flags;
6585 		s->addr = sh.sh_addr;
6586 		s->link = sh.sh_link;
6587 		s->info = sh.sh_info;
6588 	} while ((scn = elf_nextscn(re->elf, scn)) != NULL);
6589 	elferr = elf_errno();
6590 	if (elferr != 0)
6591 		warnx("elf_nextscn failed: %s", elf_errmsg(elferr));
6592 }
6593 
6594 static void
6595 unload_sections(struct readelf *re)
6596 {
6597 
6598 	if (re->sl != NULL) {
6599 		free(re->sl);
6600 		re->sl = NULL;
6601 	}
6602 	re->shnum = 0;
6603 	re->vd_s = NULL;
6604 	re->vn_s = NULL;
6605 	re->vs_s = NULL;
6606 	re->vs = NULL;
6607 	re->vs_sz = 0;
6608 	if (re->ver != NULL) {
6609 		free(re->ver);
6610 		re->ver = NULL;
6611 		re->ver_sz = 0;
6612 	}
6613 }
6614 
6615 static void
6616 dump_elf(struct readelf *re)
6617 {
6618 
6619 	/* Fetch ELF header. No need to continue if it fails. */
6620 	if (gelf_getehdr(re->elf, &re->ehdr) == NULL) {
6621 		warnx("gelf_getehdr failed: %s", elf_errmsg(-1));
6622 		return;
6623 	}
6624 	if ((re->ec = gelf_getclass(re->elf)) == ELFCLASSNONE) {
6625 		warnx("gelf_getclass failed: %s", elf_errmsg(-1));
6626 		return;
6627 	}
6628 	if (re->ehdr.e_ident[EI_DATA] == ELFDATA2MSB) {
6629 		re->dw_read = _read_msb;
6630 		re->dw_decode = _decode_msb;
6631 	} else {
6632 		re->dw_read = _read_lsb;
6633 		re->dw_decode = _decode_lsb;
6634 	}
6635 
6636 	if (re->options & ~RE_H)
6637 		load_sections(re);
6638 	if ((re->options & RE_VV) || (re->options & RE_S))
6639 		search_ver(re);
6640 	if (re->options & RE_H)
6641 		dump_ehdr(re);
6642 	if (re->options & RE_L)
6643 		dump_phdr(re);
6644 	if (re->options & RE_SS)
6645 		dump_shdr(re);
6646 	if (re->options & RE_G)
6647 		dump_section_groups(re);
6648 	if (re->options & RE_D)
6649 		dump_dynamic(re);
6650 	if (re->options & RE_R)
6651 		dump_reloc(re);
6652 	if (re->options & RE_S)
6653 		dump_symtabs(re);
6654 	if (re->options & RE_N)
6655 		dump_notes(re);
6656 	if (re->options & RE_II)
6657 		dump_hash(re);
6658 	if (re->options & RE_X)
6659 		hex_dump(re);
6660 	if (re->options & RE_P)
6661 		str_dump(re);
6662 	if (re->options & RE_VV)
6663 		dump_ver(re);
6664 	if (re->options & RE_AA)
6665 		dump_arch_specific_info(re);
6666 	if (re->options & RE_W)
6667 		dump_dwarf(re);
6668 	if (re->options & ~RE_H)
6669 		unload_sections(re);
6670 }
6671 
6672 static void
6673 dump_dwarf(struct readelf *re)
6674 {
6675 	int error;
6676 	Dwarf_Error de;
6677 
6678 	if (dwarf_elf_init(re->elf, DW_DLC_READ, NULL, NULL, &re->dbg, &de)) {
6679 		if ((error = dwarf_errno(de)) != DW_DLE_DEBUG_INFO_NULL)
6680 			errx(EXIT_FAILURE, "dwarf_elf_init failed: %s",
6681 			    dwarf_errmsg(de));
6682 		return;
6683 	}
6684 
6685 	if (re->dop & DW_A)
6686 		dump_dwarf_abbrev(re);
6687 	if (re->dop & DW_L)
6688 		dump_dwarf_line(re);
6689 	if (re->dop & DW_LL)
6690 		dump_dwarf_line_decoded(re);
6691 	if (re->dop & DW_I) {
6692 		dump_dwarf_info(re, 0);
6693 		dump_dwarf_info(re, 1);
6694 	}
6695 	if (re->dop & DW_P)
6696 		dump_dwarf_pubnames(re);
6697 	if (re->dop & DW_R)
6698 		dump_dwarf_aranges(re);
6699 	if (re->dop & DW_RR)
6700 		dump_dwarf_ranges(re);
6701 	if (re->dop & DW_M)
6702 		dump_dwarf_macinfo(re);
6703 	if (re->dop & DW_F)
6704 		dump_dwarf_frame(re, 0);
6705 	else if (re->dop & DW_FF)
6706 		dump_dwarf_frame(re, 1);
6707 	if (re->dop & DW_S)
6708 		dump_dwarf_str(re);
6709 	if (re->dop & DW_O)
6710 		dump_dwarf_loclist(re);
6711 
6712 	dwarf_finish(re->dbg, &de);
6713 }
6714 
6715 static void
6716 dump_ar(struct readelf *re, int fd)
6717 {
6718 	Elf_Arsym *arsym;
6719 	Elf_Arhdr *arhdr;
6720 	Elf_Cmd cmd;
6721 	Elf *e;
6722 	size_t sz;
6723 	off_t off;
6724 	int i;
6725 
6726 	re->ar = re->elf;
6727 
6728 	if (re->options & RE_C) {
6729 		if ((arsym = elf_getarsym(re->ar, &sz)) == NULL) {
6730 			warnx("elf_getarsym() failed: %s", elf_errmsg(-1));
6731 			goto process_members;
6732 		}
6733 		printf("Index of archive %s: (%ju entries)\n", re->filename,
6734 		    (uintmax_t) sz - 1);
6735 		off = 0;
6736 		for (i = 0; (size_t) i < sz; i++) {
6737 			if (arsym[i].as_name == NULL)
6738 				break;
6739 			if (arsym[i].as_off != off) {
6740 				off = arsym[i].as_off;
6741 				if (elf_rand(re->ar, off) != off) {
6742 					warnx("elf_rand() failed: %s",
6743 					    elf_errmsg(-1));
6744 					continue;
6745 				}
6746 				if ((e = elf_begin(fd, ELF_C_READ, re->ar)) ==
6747 				    NULL) {
6748 					warnx("elf_begin() failed: %s",
6749 					    elf_errmsg(-1));
6750 					continue;
6751 				}
6752 				if ((arhdr = elf_getarhdr(e)) == NULL) {
6753 					warnx("elf_getarhdr() failed: %s",
6754 					    elf_errmsg(-1));
6755 					elf_end(e);
6756 					continue;
6757 				}
6758 				printf("Binary %s(%s) contains:\n",
6759 				    re->filename, arhdr->ar_name);
6760 			}
6761 			printf("\t%s\n", arsym[i].as_name);
6762 		}
6763 		if (elf_rand(re->ar, SARMAG) != SARMAG) {
6764 			warnx("elf_rand() failed: %s", elf_errmsg(-1));
6765 			return;
6766 		}
6767 	}
6768 
6769 process_members:
6770 
6771 	if ((re->options & ~RE_C) == 0)
6772 		return;
6773 
6774 	cmd = ELF_C_READ;
6775 	while ((re->elf = elf_begin(fd, cmd, re->ar)) != NULL) {
6776 		if ((arhdr = elf_getarhdr(re->elf)) == NULL) {
6777 			warnx("elf_getarhdr() failed: %s", elf_errmsg(-1));
6778 			goto next_member;
6779 		}
6780 		if (strcmp(arhdr->ar_name, "/") == 0 ||
6781 		    strcmp(arhdr->ar_name, "//") == 0 ||
6782 		    strcmp(arhdr->ar_name, "__.SYMDEF") == 0)
6783 			goto next_member;
6784 		printf("\nFile: %s(%s)\n", re->filename, arhdr->ar_name);
6785 		dump_elf(re);
6786 
6787 	next_member:
6788 		cmd = elf_next(re->elf);
6789 		elf_end(re->elf);
6790 	}
6791 	re->elf = re->ar;
6792 }
6793 
6794 static void
6795 dump_object(struct readelf *re)
6796 {
6797 	int fd;
6798 
6799 	if ((fd = open(re->filename, O_RDONLY)) == -1) {
6800 		warn("open %s failed", re->filename);
6801 		return;
6802 	}
6803 
6804 	if ((re->flags & DISPLAY_FILENAME) != 0)
6805 		printf("\nFile: %s\n", re->filename);
6806 
6807 	if ((re->elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
6808 		warnx("elf_begin() failed: %s", elf_errmsg(-1));
6809 		return;
6810 	}
6811 
6812 	switch (elf_kind(re->elf)) {
6813 	case ELF_K_NONE:
6814 		warnx("Not an ELF file.");
6815 		return;
6816 	case ELF_K_ELF:
6817 		dump_elf(re);
6818 		break;
6819 	case ELF_K_AR:
6820 		dump_ar(re, fd);
6821 		break;
6822 	default:
6823 		warnx("Internal: libelf returned unknown elf kind.");
6824 		return;
6825 	}
6826 
6827 	elf_end(re->elf);
6828 }
6829 
6830 static void
6831 add_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t)
6832 {
6833 	struct dumpop *d;
6834 
6835 	if ((d = find_dumpop(re, si, sn, -1, t)) == NULL) {
6836 		if ((d = calloc(1, sizeof(*d))) == NULL)
6837 			err(EXIT_FAILURE, "calloc failed");
6838 		if (t == DUMP_BY_INDEX)
6839 			d->u.si = si;
6840 		else
6841 			d->u.sn = sn;
6842 		d->type = t;
6843 		d->op = op;
6844 		STAILQ_INSERT_TAIL(&re->v_dumpop, d, dumpop_list);
6845 	} else
6846 		d->op |= op;
6847 }
6848 
6849 static struct dumpop *
6850 find_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t)
6851 {
6852 	struct dumpop *d;
6853 
6854 	STAILQ_FOREACH(d, &re->v_dumpop, dumpop_list) {
6855 		if ((op == -1 || op & d->op) &&
6856 		    (t == -1 || (unsigned) t == d->type)) {
6857 			if ((d->type == DUMP_BY_INDEX && d->u.si == si) ||
6858 			    (d->type == DUMP_BY_NAME && !strcmp(d->u.sn, sn)))
6859 				return (d);
6860 		}
6861 	}
6862 
6863 	return (NULL);
6864 }
6865 
6866 static struct {
6867 	const char *ln;
6868 	char sn;
6869 	int value;
6870 } dwarf_op[] = {
6871 	{"rawline", 'l', DW_L},
6872 	{"decodedline", 'L', DW_LL},
6873 	{"info", 'i', DW_I},
6874 	{"abbrev", 'a', DW_A},
6875 	{"pubnames", 'p', DW_P},
6876 	{"aranges", 'r', DW_R},
6877 	{"ranges", 'r', DW_R},
6878 	{"Ranges", 'R', DW_RR},
6879 	{"macro", 'm', DW_M},
6880 	{"frames", 'f', DW_F},
6881 	{"frames-interp", 'F', DW_FF},
6882 	{"str", 's', DW_S},
6883 	{"loc", 'o', DW_O},
6884 	{NULL, 0, 0}
6885 };
6886 
6887 static void
6888 parse_dwarf_op_short(struct readelf *re, const char *op)
6889 {
6890 	int i;
6891 
6892 	if (op == NULL) {
6893 		re->dop |= DW_DEFAULT_OPTIONS;
6894 		return;
6895 	}
6896 
6897 	for (; *op != '\0'; op++) {
6898 		for (i = 0; dwarf_op[i].ln != NULL; i++) {
6899 			if (dwarf_op[i].sn == *op) {
6900 				re->dop |= dwarf_op[i].value;
6901 				break;
6902 			}
6903 		}
6904 	}
6905 }
6906 
6907 static void
6908 parse_dwarf_op_long(struct readelf *re, const char *op)
6909 {
6910 	char *p, *token, *bp;
6911 	int i;
6912 
6913 	if (op == NULL) {
6914 		re->dop |= DW_DEFAULT_OPTIONS;
6915 		return;
6916 	}
6917 
6918 	if ((p = strdup(op)) == NULL)
6919 		err(EXIT_FAILURE, "strdup failed");
6920 	bp = p;
6921 
6922 	while ((token = strsep(&p, ",")) != NULL) {
6923 		for (i = 0; dwarf_op[i].ln != NULL; i++) {
6924 			if (!strcmp(token, dwarf_op[i].ln)) {
6925 				re->dop |= dwarf_op[i].value;
6926 				break;
6927 			}
6928 		}
6929 	}
6930 
6931 	free(bp);
6932 }
6933 
6934 static uint64_t
6935 _read_lsb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read)
6936 {
6937 	uint64_t ret;
6938 	uint8_t *src;
6939 
6940 	src = (uint8_t *) d->d_buf + *offsetp;
6941 
6942 	ret = 0;
6943 	switch (bytes_to_read) {
6944 	case 8:
6945 		ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
6946 		ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
6947 		/* FALLTHROUGH */
6948 	case 4:
6949 		ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
6950 		/* FALLTHROUGH */
6951 	case 2:
6952 		ret |= ((uint64_t) src[1]) << 8;
6953 		/* FALLTHROUGH */
6954 	case 1:
6955 		ret |= src[0];
6956 		break;
6957 	default:
6958 		return (0);
6959 	}
6960 
6961 	*offsetp += bytes_to_read;
6962 
6963 	return (ret);
6964 }
6965 
6966 static uint64_t
6967 _read_msb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read)
6968 {
6969 	uint64_t ret;
6970 	uint8_t *src;
6971 
6972 	src = (uint8_t *) d->d_buf + *offsetp;
6973 
6974 	switch (bytes_to_read) {
6975 	case 1:
6976 		ret = src[0];
6977 		break;
6978 	case 2:
6979 		ret = src[1] | ((uint64_t) src[0]) << 8;
6980 		break;
6981 	case 4:
6982 		ret = src[3] | ((uint64_t) src[2]) << 8;
6983 		ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24;
6984 		break;
6985 	case 8:
6986 		ret = src[7] | ((uint64_t) src[6]) << 8;
6987 		ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24;
6988 		ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40;
6989 		ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56;
6990 		break;
6991 	default:
6992 		return (0);
6993 	}
6994 
6995 	*offsetp += bytes_to_read;
6996 
6997 	return (ret);
6998 }
6999 
7000 static uint64_t
7001 _decode_lsb(uint8_t **data, int bytes_to_read)
7002 {
7003 	uint64_t ret;
7004 	uint8_t *src;
7005 
7006 	src = *data;
7007 
7008 	ret = 0;
7009 	switch (bytes_to_read) {
7010 	case 8:
7011 		ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
7012 		ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
7013 		/* FALLTHROUGH */
7014 	case 4:
7015 		ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
7016 		/* FALLTHROUGH */
7017 	case 2:
7018 		ret |= ((uint64_t) src[1]) << 8;
7019 		/* FALLTHROUGH */
7020 	case 1:
7021 		ret |= src[0];
7022 		break;
7023 	default:
7024 		return (0);
7025 	}
7026 
7027 	*data += bytes_to_read;
7028 
7029 	return (ret);
7030 }
7031 
7032 static uint64_t
7033 _decode_msb(uint8_t **data, int bytes_to_read)
7034 {
7035 	uint64_t ret;
7036 	uint8_t *src;
7037 
7038 	src = *data;
7039 
7040 	ret = 0;
7041 	switch (bytes_to_read) {
7042 	case 1:
7043 		ret = src[0];
7044 		break;
7045 	case 2:
7046 		ret = src[1] | ((uint64_t) src[0]) << 8;
7047 		break;
7048 	case 4:
7049 		ret = src[3] | ((uint64_t) src[2]) << 8;
7050 		ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24;
7051 		break;
7052 	case 8:
7053 		ret = src[7] | ((uint64_t) src[6]) << 8;
7054 		ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24;
7055 		ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40;
7056 		ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56;
7057 		break;
7058 	default:
7059 		return (0);
7060 		break;
7061 	}
7062 
7063 	*data += bytes_to_read;
7064 
7065 	return (ret);
7066 }
7067 
7068 static int64_t
7069 _decode_sleb128(uint8_t **dp, uint8_t *dpe)
7070 {
7071 	int64_t ret = 0;
7072 	uint8_t b = 0;
7073 	int shift = 0;
7074 
7075 	uint8_t *src = *dp;
7076 
7077 	do {
7078 		if (src >= dpe)
7079 			break;
7080 		b = *src++;
7081 		ret |= ((b & 0x7f) << shift);
7082 		shift += 7;
7083 	} while ((b & 0x80) != 0);
7084 
7085 	if (shift < 32 && (b & 0x40) != 0)
7086 		ret |= (-1 << shift);
7087 
7088 	*dp = src;
7089 
7090 	return (ret);
7091 }
7092 
7093 static uint64_t
7094 _decode_uleb128(uint8_t **dp, uint8_t *dpe)
7095 {
7096 	uint64_t ret = 0;
7097 	uint8_t b;
7098 	int shift = 0;
7099 
7100 	uint8_t *src = *dp;
7101 
7102 	do {
7103 		if (src >= dpe)
7104 			break;
7105 		b = *src++;
7106 		ret |= ((b & 0x7f) << shift);
7107 		shift += 7;
7108 	} while ((b & 0x80) != 0);
7109 
7110 	*dp = src;
7111 
7112 	return (ret);
7113 }
7114 
7115 static void
7116 readelf_version(void)
7117 {
7118 	(void) printf("%s (%s)\n", ELFTC_GETPROGNAME(),
7119 	    elftc_version());
7120 	exit(EXIT_SUCCESS);
7121 }
7122 
7123 #define	USAGE_MESSAGE	"\
7124 Usage: %s [options] file...\n\
7125   Display information about ELF objects and ar(1) archives.\n\n\
7126   Options:\n\
7127   -a | --all               Equivalent to specifying options '-dhIlrsASV'.\n\
7128   -c | --archive-index     Print the archive symbol table for archives.\n\
7129   -d | --dynamic           Print the contents of SHT_DYNAMIC sections.\n\
7130   -e | --headers           Print all headers in the object.\n\
7131   -g | --section-groups    Print the contents of the section groups.\n\
7132   -h | --file-header       Print the file header for the object.\n\
7133   -l | --program-headers   Print the PHDR table for the object.\n\
7134   -n | --notes             Print the contents of SHT_NOTE sections.\n\
7135   -p INDEX | --string-dump=INDEX\n\
7136                            Print the contents of section at index INDEX.\n\
7137   -r | --relocs            Print relocation information.\n\
7138   -s | --syms | --symbols  Print symbol tables.\n\
7139   -t | --section-details   Print additional information about sections.\n\
7140   -v | --version           Print a version identifier and exit.\n\
7141   -w[afilmoprsFLR] | --debug-dump={abbrev,aranges,decodedline,frames,\n\
7142                                frames-interp,info,loc,macro,pubnames,\n\
7143                                ranges,Ranges,rawline,str}\n\
7144                            Display DWARF information.\n\
7145   -x INDEX | --hex-dump=INDEX\n\
7146                            Display contents of a section as hexadecimal.\n\
7147   -A | --arch-specific     (accepted, but ignored)\n\
7148   -D | --use-dynamic       Print the symbol table specified by the DT_SYMTAB\n\
7149                            entry in the \".dynamic\" section.\n\
7150   -H | --help              Print a help message.\n\
7151   -I | --histogram         Print information on bucket list lengths for \n\
7152                            hash sections.\n\
7153   -N | --full-section-name (accepted, but ignored)\n\
7154   -S | --sections | --section-headers\n\
7155                            Print information about section headers.\n\
7156   -V | --version-info      Print symbol versoning information.\n\
7157   -W | --wide              Print information without wrapping long lines.\n"
7158 
7159 
7160 static void
7161 readelf_usage(int status)
7162 {
7163 	fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME());
7164 	exit(status);
7165 }
7166 
7167 int
7168 main(int argc, char **argv)
7169 {
7170 	struct readelf	*re, re_storage;
7171 	unsigned long	 si;
7172 	int		 opt, i;
7173 	char		*ep;
7174 
7175 	re = &re_storage;
7176 	memset(re, 0, sizeof(*re));
7177 	STAILQ_INIT(&re->v_dumpop);
7178 
7179 	while ((opt = getopt_long(argc, argv, "AacDdegHhIi:lNnp:rSstuVvWw::x:",
7180 	    longopts, NULL)) != -1) {
7181 		switch(opt) {
7182 		case '?':
7183 			readelf_usage(EXIT_SUCCESS);
7184 			break;
7185 		case 'A':
7186 			re->options |= RE_AA;
7187 			break;
7188 		case 'a':
7189 			re->options |= RE_AA | RE_D | RE_G | RE_H | RE_II |
7190 			    RE_L | RE_R | RE_SS | RE_S | RE_VV;
7191 			break;
7192 		case 'c':
7193 			re->options |= RE_C;
7194 			break;
7195 		case 'D':
7196 			re->options |= RE_DD;
7197 			break;
7198 		case 'd':
7199 			re->options |= RE_D;
7200 			break;
7201 		case 'e':
7202 			re->options |= RE_H | RE_L | RE_SS;
7203 			break;
7204 		case 'g':
7205 			re->options |= RE_G;
7206 			break;
7207 		case 'H':
7208 			readelf_usage(EXIT_SUCCESS);
7209 			break;
7210 		case 'h':
7211 			re->options |= RE_H;
7212 			break;
7213 		case 'I':
7214 			re->options |= RE_II;
7215 			break;
7216 		case 'i':
7217 			/* Not implemented yet. */
7218 			break;
7219 		case 'l':
7220 			re->options |= RE_L;
7221 			break;
7222 		case 'N':
7223 			re->options |= RE_NN;
7224 			break;
7225 		case 'n':
7226 			re->options |= RE_N;
7227 			break;
7228 		case 'p':
7229 			re->options |= RE_P;
7230 			si = strtoul(optarg, &ep, 10);
7231 			if (*ep == '\0')
7232 				add_dumpop(re, (size_t) si, NULL, STR_DUMP,
7233 				    DUMP_BY_INDEX);
7234 			else
7235 				add_dumpop(re, 0, optarg, STR_DUMP,
7236 				    DUMP_BY_NAME);
7237 			break;
7238 		case 'r':
7239 			re->options |= RE_R;
7240 			break;
7241 		case 'S':
7242 			re->options |= RE_SS;
7243 			break;
7244 		case 's':
7245 			re->options |= RE_S;
7246 			break;
7247 		case 't':
7248 			re->options |= RE_T;
7249 			break;
7250 		case 'u':
7251 			re->options |= RE_U;
7252 			break;
7253 		case 'V':
7254 			re->options |= RE_VV;
7255 			break;
7256 		case 'v':
7257 			readelf_version();
7258 			break;
7259 		case 'W':
7260 			re->options |= RE_WW;
7261 			break;
7262 		case 'w':
7263 			re->options |= RE_W;
7264 			parse_dwarf_op_short(re, optarg);
7265 			break;
7266 		case 'x':
7267 			re->options |= RE_X;
7268 			si = strtoul(optarg, &ep, 10);
7269 			if (*ep == '\0')
7270 				add_dumpop(re, (size_t) si, NULL, HEX_DUMP,
7271 				    DUMP_BY_INDEX);
7272 			else
7273 				add_dumpop(re, 0, optarg, HEX_DUMP,
7274 				    DUMP_BY_NAME);
7275 			break;
7276 		case OPTION_DEBUG_DUMP:
7277 			re->options |= RE_W;
7278 			parse_dwarf_op_long(re, optarg);
7279 		}
7280 	}
7281 
7282 	argv += optind;
7283 	argc -= optind;
7284 
7285 	if (argc == 0 || re->options == 0)
7286 		readelf_usage(EXIT_FAILURE);
7287 
7288 	if (argc > 1)
7289 		re->flags |= DISPLAY_FILENAME;
7290 
7291 	if (elf_version(EV_CURRENT) == EV_NONE)
7292 		errx(EXIT_FAILURE, "ELF library initialization failed: %s",
7293 		    elf_errmsg(-1));
7294 
7295 	for (i = 0; i < argc; i++) {
7296 		re->filename = argv[i];
7297 		dump_object(re);
7298 	}
7299 
7300 	exit(EXIT_SUCCESS);
7301 }
7302