xref: /titanic_51/usr/src/cmd/sgs/libld/common/update.c (revision b8201470142151ac3303d2d0b875fc282299de45)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  *	Copyright (c) 1988 AT&T
24  *	  All Rights Reserved
25  *
26  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
27  * Use is subject to license terms.
28  */
29 
30 /*
31  * Update the new output file image, perform virtual address, offset and
32  * displacement calculations on the program headers and sections headers,
33  * and generate any new output section information.
34  */
35 
36 #define	ELF_TARGET_AMD64
37 
38 #include	<stdio.h>
39 #include	<string.h>
40 #include	<unistd.h>
41 #include	<debug.h>
42 #include	"msg.h"
43 #include	"_libld.h"
44 
45 /*
46  * Comparison routine used by qsort() for sorting of the global symbol list
47  * based off of the hashbuckets the symbol will eventually be deposited in.
48  */
49 static int
50 sym_hash_compare(Sym_s_list * s1, Sym_s_list * s2)
51 {
52 	return (s1->sl_hval - s2->sl_hval);
53 }
54 
55 /*
56  * Comparison routine used by qsort() for sorting of dyn[sym|tls]sort section
57  * indices based on the address of the symbols they reference. The
58  * use of the global dynsort_compare_syms variable is needed because
59  * we need to examine the symbols the indices reference. It is safe, because
60  * the linker is single threaded.
61  */
62 Sym *dynsort_compare_syms;
63 
64 static int
65 dynsort_compare(const void *idx1, const void *idx2)
66 {
67 	Sym *s1 = dynsort_compare_syms + *((const Word *) idx1);
68 	Sym *s2 = dynsort_compare_syms + *((const Word *) idx2);
69 
70 	/*
71 	 * Note: the logical computation for this is
72 	 *	(st_value1 - st_value2)
73 	 * However, that is only correct if the address type is smaller
74 	 * than a pointer. Writing it this way makes it immune to the
75 	 * class (32 or 64-bit) of the linker.
76 	 */
77 	return ((s1->st_value < s2->st_value) ? -1 :
78 	    (s1->st_value > s2->st_value));
79 }
80 
81 /*
82  * Scan the sorted symbols, and issue warnings if there are any duplicate
83  * values in the list. We only do this if -zverbose is set, or we are
84  * running with LD_DEBUG defined
85  *
86  * entry:
87  *	ofl - Output file descriptor
88  *	ldynsym - Pointer to start of .SUNW_ldynsym section that the
89  *		sort section indexes reference.
90  *	symsort - Pointer to start of .SUNW_dynsymsort or .SUNW_dyntlssort
91  *		section.
92  *	n - # of indices in symsort array
93  *	secname - Name of the symsort section.
94  *
95  * exit:
96  *	If the symsort section contains indexes to more than one
97  *	symbol with the same address value, a warning is issued.
98  */
99 static void
100 dynsort_dupwarn(Ofl_desc *ofl, Sym *ldynsym, const char *str,
101     Word *symsort, Word n, const char *secname)
102 {
103 	int zverbose = (ofl->ofl_flags & FLG_OF_VERBOSE) != 0;
104 	Word ndx, cmp_ndx;
105 	Addr addr, cmp_addr;
106 
107 	/* Nothing to do if -zverbose or LD_DEBUG are not active */
108 	if (!(zverbose || DBG_ENABLED))
109 		return;
110 
111 	cmp_ndx = 0;
112 	cmp_addr = ldynsym[symsort[cmp_ndx]].st_value;
113 	for (ndx = 1; ndx < n; ndx++) {
114 		addr = ldynsym[symsort[ndx]].st_value;
115 		if (cmp_addr == addr) {
116 			if (zverbose)
117 				eprintf(ofl->ofl_lml, ERR_WARNING,
118 				    MSG_INTL(MSG_SYM_DUPSORTADDR), secname,
119 				    str + ldynsym[symsort[cmp_ndx]].st_name,
120 				    str + ldynsym[symsort[ndx]].st_name,
121 				    EC_ADDR(addr));
122 			DBG_CALL(Dbg_syms_dup_sort_addr(ofl->ofl_lml, secname,
123 			    str + ldynsym[symsort[cmp_ndx]].st_name,
124 			    str + ldynsym[symsort[ndx]].st_name,
125 			    EC_ADDR(addr)));
126 		} else {	/* Not a dup. Move reference up */
127 			cmp_ndx = ndx;
128 			cmp_addr = addr;
129 		}
130 	}
131 }
132 
133 
134 /*
135  * Build and update any output symbol tables.  Here we work on all the symbol
136  * tables at once to reduce the duplication of symbol and string manipulation.
137  * Symbols and their associated strings are copied from the read-only input
138  * file images to the output image and their values and index's updated in the
139  * output image.
140  */
141 static Addr
142 update_osym(Ofl_desc *ofl)
143 {
144 	/*
145 	 * There are several places in this function where we wish
146 	 * to insert a symbol index to the combined .SUNW_ldynsym/.dynsym
147 	 * symbol table into one of the two sort sections (.SUNW_dynsymsort
148 	 * or .SUNW_dyntlssort), if that symbol has the right attributes.
149 	 * This macro is used to generate the necessary code from a single
150 	 * specification.
151 	 *
152 	 * entry:
153 	 *	_sdp, _sym, _type - As per DYNSORT_COUNT. See _libld.h
154 	 *	_sym_ndx - Index that _sym will have in the combined
155 	 *		.SUNW_ldynsym/.dynsym symbol table.
156 	 */
157 #define	ADD_TO_DYNSORT(_sdp, _sym, _type, _sym_ndx) \
158 	{ \
159 		Word *_dynsort_arr, *_dynsort_ndx; \
160 		\
161 		if (dynsymsort_symtype[_type]) { \
162 			_dynsort_arr = dynsymsort; \
163 			_dynsort_ndx = &dynsymsort_ndx; \
164 		} else if (_type == STT_TLS) { \
165 			_dynsort_arr = dyntlssort; \
166 			_dynsort_ndx = &dyntlssort_ndx; \
167 		} else { \
168 			_dynsort_arr = NULL; \
169 		} \
170 		if ((_dynsort_arr != NULL) && DYNSORT_TEST_ATTR(_sdp, _sym)) \
171 			_dynsort_arr[(*_dynsort_ndx)++] = _sym_ndx; \
172 	}
173 
174 
175 	Sym_desc	*sdp;
176 	Sym_avlnode	*sav;
177 	Sg_desc		*sgp, *tsgp = NULL, *dsgp = NULL, *esgp = NULL;
178 	Os_desc		*osp, *iosp = NULL, *fosp = NULL;
179 	Is_desc		*isc;
180 	Ifl_desc	*ifl;
181 	Word		bssndx, etext_ndx, edata_ndx = 0, end_ndx, start_ndx;
182 	Word		end_abs = 0, etext_abs = 0, edata_abs;
183 	Word		tlsbssndx = 0, parexpnndx;
184 #if	defined(_ELF64)
185 	Word		lbssndx = 0;
186 	Addr		lbssaddr = 0;
187 #endif
188 	Addr		bssaddr, etext = 0, edata = 0, end = 0, start = 0;
189 	Addr		tlsbssaddr = 0;
190 	Addr 		parexpnbase, parexpnaddr;
191 	int		start_set = 0;
192 	Sym		_sym = {0}, *sym, *symtab = NULL;
193 	Sym		*dynsym = NULL, *ldynsym = NULL;
194 	Word		symtab_ndx = 0;	/* index into .symtab */
195 	Word		symtab_gbl_bndx;	/* .symtab ndx 1st global */
196 	Word		ldynsym_ndx = 0;	/* index into .SUNW_ldynsym */
197 	Word		dynsym_ndx = 0;		/* index into .dynsym */
198 	Word		scopesym_ndx = 0; /* index into scoped symbols */
199 	Word		scopesym_bndx = 0;	/* .symtab ndx 1st scoped sym */
200 	Word		ldynscopesym_ndx = 0; /* index to ldynsym scoped syms */
201 	Word		*dynsymsort = NULL; /* SUNW_dynsymsort index vector */
202 	Word		*dyntlssort = NULL; /* SUNW_dyntlssort index vector */
203 	Word		dynsymsort_ndx;		/* index dynsymsort array */
204 	Word		dyntlssort_ndx;		/* index dyntlssort array */
205 	Word		*symndx;	/* Symbol index (for relocation use) */
206 	Word		*symshndx = NULL;	/* .symtab_shndx table */
207 	Word		*dynshndx = NULL;	/* .dynsym_shndx table */
208 	Word		*ldynshndx = NULL;	/* .SUNW_ldynsym_shndx table */
209 	Word		ldynsym_cnt = NULL; /* # of items in .SUNW_ldynsym */
210 	Str_tbl		*shstrtab;
211 	Str_tbl		*strtab;
212 	Str_tbl		*dynstr;
213 	Word		*hashtab;	/* hash table pointer */
214 	Word		*hashbkt;	/* hash table bucket pointer */
215 	Word		*hashchain;	/* hash table chain pointer */
216 	Word		hashval;	/* value of hash function */
217 	Wk_desc		*wkp;
218 	Alist		*weak = NULL;
219 	ofl_flag_t	flags = ofl->ofl_flags;
220 	Word		dtflags_1 = ofl->ofl_dtflags_1;
221 	Versym		*versym;
222 	Gottable	*gottable;	/* used for display got debugging */
223 					/*	information */
224 	Syminfo		*syminfo;
225 	Sym_s_list	*sorted_syms;	/* table to hold sorted symbols */
226 	Word		ssndx;		/* global index into sorted_syms */
227 	Word		scndx;		/* scoped index into sorted_syms */
228 	size_t		stoff;		/* string offset */
229 	Aliste		idx1;
230 
231 	/*
232 	 * Initialize pointers to the symbol table entries and the symbol
233 	 * table strings.  Skip the first symbol entry and the first string
234 	 * table byte.  Note that if we are not generating any output symbol
235 	 * tables we must still generate and update an internal copies so
236 	 * that the relocation phase has the correct information.
237 	 */
238 	if (!(flags & FLG_OF_STRIP) || (flags & FLG_OF_RELOBJ) ||
239 	    ((flags & FLG_OF_STATIC) && ofl->ofl_osversym)) {
240 		symtab = (Sym *)ofl->ofl_ossymtab->os_outdata->d_buf;
241 		symtab[symtab_ndx++] = _sym;
242 		if (ofl->ofl_ossymshndx)
243 			symshndx =
244 			    (Word *)ofl->ofl_ossymshndx->os_outdata->d_buf;
245 	}
246 	if (OFL_ALLOW_DYNSYM(ofl)) {
247 		dynsym = (Sym *)ofl->ofl_osdynsym->os_outdata->d_buf;
248 		dynsym[dynsym_ndx++] = _sym;
249 		/*
250 		 * If we are also constructing a .SUNW_ldynsym section
251 		 * to contain local function symbols, then set it up too.
252 		 */
253 		if (ofl->ofl_osldynsym) {
254 			ldynsym = (Sym *)ofl->ofl_osldynsym->os_outdata->d_buf;
255 			ldynsym[ldynsym_ndx++] = _sym;
256 			ldynsym_cnt = 1 + ofl->ofl_dynlocscnt +
257 			    ofl->ofl_dynscopecnt;
258 
259 			/*
260 			 * If there is a SUNW_ldynsym, then there may also
261 			 * be a .SUNW_dynsymsort and/or .SUNW_dyntlssort
262 			 * sections, used to collect indices of function
263 			 * and data symbols sorted by address order.
264 			 */
265 			if (ofl->ofl_osdynsymsort) {	/* .SUNW_dynsymsort */
266 				dynsymsort = (Word *)
267 				    ofl->ofl_osdynsymsort->os_outdata->d_buf;
268 				dynsymsort_ndx = 0;
269 			}
270 			if (ofl->ofl_osdyntlssort) {	/* .SUNW_dyntlssort */
271 				dyntlssort = (Word *)
272 				    ofl->ofl_osdyntlssort->os_outdata->d_buf;
273 				dyntlssort_ndx = 0;
274 			}
275 		}
276 
277 		/*
278 		 * Initialize the hash table.
279 		 */
280 		hashtab = (Word *)(ofl->ofl_oshash->os_outdata->d_buf);
281 		hashbkt = &hashtab[2];
282 		hashchain = &hashtab[2 + ofl->ofl_hashbkts];
283 		hashtab[0] = ofl->ofl_hashbkts;
284 		hashtab[1] = ofl->ofl_dynshdrcnt + ofl->ofl_globcnt +
285 		    ofl->ofl_lregsymcnt + 1;
286 		if (ofl->ofl_osdynshndx)
287 			dynshndx =
288 			    (Word *)ofl->ofl_osdynshndx->os_outdata->d_buf;
289 		if (ofl->ofl_osldynshndx)
290 			ldynshndx =
291 			    (Word *)ofl->ofl_osldynshndx->os_outdata->d_buf;
292 	}
293 
294 	/*
295 	 * symndx is the symbol index to be used for relocation processing.  It
296 	 * points to the relevant symtab's (.dynsym or .symtab) symbol ndx.
297 	 */
298 	if (dynsym)
299 		symndx = &dynsym_ndx;
300 	else
301 		symndx = &symtab_ndx;
302 
303 	/*
304 	 * If we have version definitions initialize the version symbol index
305 	 * table.  There is one entry for each symbol which contains the symbols
306 	 * version index.
307 	 */
308 	if (!(flags & FLG_OF_NOVERSEC) &&
309 	    (flags & (FLG_OF_VERNEED | FLG_OF_VERDEF))) {
310 		versym = (Versym *)ofl->ofl_osversym->os_outdata->d_buf;
311 		versym[0] = 0;
312 	} else
313 		versym = 0;
314 
315 	/*
316 	 * If syminfo section exists be prepared to fill it in.
317 	 */
318 	if (ofl->ofl_ossyminfo) {
319 		syminfo = ofl->ofl_ossyminfo->os_outdata->d_buf;
320 		syminfo[0].si_flags = SYMINFO_CURRENT;
321 	} else
322 		syminfo = 0;
323 
324 	/*
325 	 * Setup our string tables.
326 	 */
327 	shstrtab = ofl->ofl_shdrsttab;
328 	strtab = ofl->ofl_strtab;
329 	dynstr = ofl->ofl_dynstrtab;
330 
331 	DBG_CALL(Dbg_syms_sec_title(ofl->ofl_lml));
332 
333 	/*
334 	 * Put output file name to the first .symtab and .SUNW_ldynsym symbol.
335 	 */
336 	if (symtab) {
337 		(void) st_setstring(strtab, ofl->ofl_name, &stoff);
338 		sym = &symtab[symtab_ndx++];
339 		/* LINTED */
340 		sym->st_name = stoff;
341 		sym->st_value = 0;
342 		sym->st_size = 0;
343 		sym->st_info = ELF_ST_INFO(STB_LOCAL, STT_FILE);
344 		sym->st_other = 0;
345 		sym->st_shndx = SHN_ABS;
346 
347 		if (versym && !dynsym)
348 			versym[1] = 0;
349 	}
350 	if (ldynsym) {
351 		(void) st_setstring(dynstr, ofl->ofl_name, &stoff);
352 		sym = &ldynsym[ldynsym_ndx];
353 		/* LINTED */
354 		sym->st_name = stoff;
355 		sym->st_value = 0;
356 		sym->st_size = 0;
357 		sym->st_info = ELF_ST_INFO(STB_LOCAL, STT_FILE);
358 		sym->st_other = 0;
359 		sym->st_shndx = SHN_ABS;
360 
361 		/* Scoped symbols get filled in global loop below */
362 		ldynscopesym_ndx = ldynsym_ndx + 1;
363 		ldynsym_ndx += ofl->ofl_dynscopecnt;
364 	}
365 
366 	/*
367 	 * If we are to display GOT summary information, then allocate
368 	 * the buffer to 'cache' the GOT symbols into now.
369 	 */
370 	if (DBG_ENABLED) {
371 		if ((ofl->ofl_gottable = gottable =
372 		    libld_calloc(ofl->ofl_gotcnt, sizeof (Gottable))) == NULL)
373 		return ((Addr)S_ERROR);
374 	}
375 
376 	/*
377 	 * Traverse the program headers.  Determine the last executable segment
378 	 * and the last data segment so that we can update etext and edata. If
379 	 * we have empty segments (reservations) record them for setting _end.
380 	 */
381 	for (APLIST_TRAVERSE(ofl->ofl_segs, idx1, sgp)) {
382 		Phdr	*phd = &(sgp->sg_phdr);
383 		Os_desc	*osp;
384 		Aliste	idx2;
385 
386 		if (phd->p_type == PT_LOAD) {
387 			if (sgp->sg_osdescs != NULL) {
388 				Word	_flags = phd->p_flags & (PF_W | PF_R);
389 
390 				if (_flags == PF_R)
391 					tsgp = sgp;
392 				else if (_flags == (PF_W | PF_R))
393 					dsgp = sgp;
394 			} else if (sgp->sg_flags & FLG_SG_EMPTY)
395 				esgp = sgp;
396 		}
397 
398 		/*
399 		 * Generate a section symbol for each output section.
400 		 */
401 		for (APLIST_TRAVERSE(sgp->sg_osdescs, idx2, osp)) {
402 			Word	sectndx;
403 
404 			sym = &_sym;
405 			sym->st_value = osp->os_shdr->sh_addr;
406 			sym->st_info = ELF_ST_INFO(STB_LOCAL, STT_SECTION);
407 			/* LINTED */
408 			sectndx = elf_ndxscn(osp->os_scn);
409 
410 			if (symtab) {
411 				if (sectndx >= SHN_LORESERVE) {
412 					symshndx[symtab_ndx] = sectndx;
413 					sym->st_shndx = SHN_XINDEX;
414 				} else {
415 					/* LINTED */
416 					sym->st_shndx = (Half)sectndx;
417 				}
418 				symtab[symtab_ndx++] = *sym;
419 			}
420 
421 			if (dynsym && (osp->os_flags & FLG_OS_OUTREL))
422 				dynsym[dynsym_ndx++] = *sym;
423 
424 			if ((dynsym == NULL) ||
425 			    (osp->os_flags & FLG_OS_OUTREL)) {
426 				if (versym)
427 					versym[*symndx - 1] = 0;
428 				osp->os_identndx = *symndx - 1;
429 				DBG_CALL(Dbg_syms_sec_entry(ofl->ofl_lml,
430 				    osp->os_identndx, sgp, osp));
431 			}
432 
433 			/*
434 			 * Generate the .shstrtab for this section.
435 			 */
436 			(void) st_setstring(shstrtab, osp->os_name, &stoff);
437 			osp->os_shdr->sh_name = (Word)stoff;
438 
439 			/*
440 			 * Find the section index for our special symbols.
441 			 */
442 			if (sgp == tsgp) {
443 				/* LINTED */
444 				etext_ndx = elf_ndxscn(osp->os_scn);
445 			} else if (dsgp == sgp) {
446 				if (osp->os_shdr->sh_type != SHT_NOBITS) {
447 					/* LINTED */
448 					edata_ndx = elf_ndxscn(osp->os_scn);
449 				}
450 			}
451 
452 			if (start_set == 0) {
453 				start = sgp->sg_phdr.p_vaddr;
454 				/* LINTED */
455 				start_ndx = elf_ndxscn(osp->os_scn);
456 				start_set++;
457 			}
458 
459 			/*
460 			 * While we're here, determine whether a .init or .fini
461 			 * section exist.
462 			 */
463 			if ((iosp == NULL) && (strcmp(osp->os_name,
464 			    MSG_ORIG(MSG_SCN_INIT)) == 0))
465 				iosp = osp;
466 			if ((fosp == NULL) && (strcmp(osp->os_name,
467 			    MSG_ORIG(MSG_SCN_FINI)) == 0))
468 				fosp = osp;
469 		}
470 	}
471 
472 	/*
473 	 * Add local register symbols to the .dynsym.  These are required as
474 	 * DT_REGISTER .dynamic entries must have a symbol to reference.
475 	 */
476 	if (ofl->ofl_regsyms && dynsym) {
477 		int	ndx;
478 
479 		for (ndx = 0; ndx < ofl->ofl_regsymsno; ndx++) {
480 			Sym_desc	*rsdp;
481 
482 			if ((rsdp = ofl->ofl_regsyms[ndx]) == NULL)
483 				continue;
484 
485 			if (((rsdp->sd_flags1 & FLG_SY1_HIDDEN) == 0) &&
486 			    (ELF_ST_BIND(rsdp->sd_sym->st_info) != STB_LOCAL))
487 				continue;
488 
489 			dynsym[dynsym_ndx] = *(rsdp->sd_sym);
490 			rsdp->sd_symndx = *symndx;
491 
492 			if (dynsym[dynsym_ndx].st_name) {
493 				(void) st_setstring(dynstr, rsdp->sd_name,
494 				    &stoff);
495 				dynsym[dynsym_ndx].st_name = stoff;
496 			}
497 			dynsym_ndx++;
498 		}
499 	}
500 
501 	/*
502 	 * Having traversed all the output segments, warn the user if the
503 	 * traditional text or data segments don't exist.  Otherwise from these
504 	 * segments establish the values for `etext', `edata', `end', `END',
505 	 * and `START'.
506 	 */
507 	if (!(flags & FLG_OF_RELOBJ)) {
508 		Sg_desc	*sgp;
509 
510 		if (tsgp)
511 			etext = tsgp->sg_phdr.p_vaddr + tsgp->sg_phdr.p_filesz;
512 		else {
513 			etext = (Addr)0;
514 			etext_ndx = SHN_ABS;
515 			etext_abs = 1;
516 			if (flags & FLG_OF_VERBOSE)
517 				eprintf(ofl->ofl_lml, ERR_WARNING,
518 				    MSG_INTL(MSG_UPD_NOREADSEG));
519 		}
520 		if (dsgp) {
521 			edata = dsgp->sg_phdr.p_vaddr + dsgp->sg_phdr.p_filesz;
522 		} else {
523 			edata = (Addr)0;
524 			edata_ndx = SHN_ABS;
525 			edata_abs = 1;
526 			if (flags & FLG_OF_VERBOSE)
527 				eprintf(ofl->ofl_lml, ERR_WARNING,
528 				    MSG_INTL(MSG_UPD_NORDWRSEG));
529 		}
530 
531 		if (dsgp == NULL) {
532 			if (tsgp)
533 				sgp = tsgp;
534 			else
535 				sgp = 0;
536 		} else if (tsgp == NULL)
537 			sgp = dsgp;
538 		else if (dsgp->sg_phdr.p_vaddr > tsgp->sg_phdr.p_vaddr)
539 			sgp = dsgp;
540 		else if (dsgp->sg_phdr.p_vaddr < tsgp->sg_phdr.p_vaddr)
541 			sgp = tsgp;
542 		else {
543 			/*
544 			 * One of the segments must be of zero size.
545 			 */
546 			if (tsgp->sg_phdr.p_memsz)
547 				sgp = tsgp;
548 			else
549 				sgp = dsgp;
550 		}
551 
552 		if (esgp && (esgp->sg_phdr.p_vaddr > sgp->sg_phdr.p_vaddr))
553 			sgp = esgp;
554 
555 		if (sgp) {
556 			end = sgp->sg_phdr.p_vaddr + sgp->sg_phdr.p_memsz;
557 
558 			/*
559 			 * If the last loadable segment is a read-only segment,
560 			 * then the application which uses the symbol _end to
561 			 * find the beginning of writable heap area may cause
562 			 * segmentation violation. We adjust the value of the
563 			 * _end to skip to the next page boundary.
564 			 *
565 			 * 6401812 System interface which returs beginning
566 			 *	   heap would be nice.
567 			 * When the above RFE is implemented, the changes below
568 			 * could be changed in a better way.
569 			 */
570 			if ((sgp->sg_phdr.p_flags & PF_W) == 0)
571 				end = (Addr)S_ROUND(end, sysconf(_SC_PAGESIZE));
572 
573 			/*
574 			 * If we're dealing with a memory reservation there are
575 			 * no sections to establish an index for _end, so assign
576 			 * it as an absolute.
577 			 */
578 			if (sgp->sg_osdescs != NULL) {
579 				/*
580 				 * Determine the last section for this segment.
581 				 */
582 				Os_desc	*osp = sgp->sg_osdescs->apl_data
583 				    [sgp->sg_osdescs->apl_nitems - 1];
584 
585 				/* LINTED */
586 				end_ndx = elf_ndxscn(osp->os_scn);
587 			} else {
588 				end_ndx = SHN_ABS;
589 				end_abs = 1;
590 			}
591 		} else {
592 			end = (Addr) 0;
593 			end_ndx = SHN_ABS;
594 			end_abs = 1;
595 			eprintf(ofl->ofl_lml, ERR_WARNING,
596 			    MSG_INTL(MSG_UPD_NOSEG));
597 		}
598 	}
599 
600 	DBG_CALL(Dbg_syms_up_title(ofl->ofl_lml));
601 
602 	/*
603 	 * Initialize the scoped symbol table entry point.  This is for all
604 	 * the global symbols that have been scoped to locals and will be
605 	 * filled in during global symbol processing so that we don't have
606 	 * to traverse the globals symbol hash array more than once.
607 	 */
608 	if (symtab) {
609 		scopesym_bndx = symtab_ndx;
610 		scopesym_ndx = scopesym_bndx;
611 		symtab_ndx += ofl->ofl_scopecnt;
612 	}
613 
614 	/*
615 	 * If expanding partially expanded symbols under '-z nopartial',
616 	 * prepare to do that.
617 	 */
618 	if (ofl->ofl_isparexpn) {
619 		osp = ofl->ofl_isparexpn->is_osdesc;
620 		parexpnbase = parexpnaddr = (Addr)(osp->os_shdr->sh_addr +
621 		    ofl->ofl_isparexpn->is_indata->d_off);
622 		/* LINTED */
623 		parexpnndx = elf_ndxscn(osp->os_scn);
624 		ofl->ofl_parexpnndx = osp->os_identndx;
625 	}
626 
627 	/*
628 	 * If we are generating a .symtab collect all the local symbols,
629 	 * assigning a new virtual address or displacement (value).
630 	 */
631 	for (APLIST_TRAVERSE(ofl->ofl_objs, idx1, ifl)) {
632 		Xword	lndx, local;
633 
634 		/*
635 		 * Check that we have local symbols to process.  If the user
636 		 * has indicated scoping then scan the global symbols also
637 		 * looking for entries from this file to reduce to locals.
638 		 */
639 		if ((local = ifl->ifl_locscnt) == 0)
640 			continue;
641 
642 		for (lndx = 1; lndx < local; lndx++) {
643 			Gotndx		*gnp;
644 			uchar_t		type;
645 			Word		*_symshndx;
646 			int		enter_in_symtab, enter_in_ldynsym;
647 			int		update_done;
648 
649 			sdp = ifl->ifl_oldndx[lndx];
650 			sym = sdp->sd_sym;
651 
652 			/*
653 			 * Assign a got offset if necessary.
654 			 */
655 			if ((ld_targ.t_mr.mr_assign_got != NULL) &&
656 			    (*ld_targ.t_mr.mr_assign_got)(ofl, sdp) == S_ERROR)
657 				return ((Addr)S_ERROR);
658 
659 			if (DBG_ENABLED) {
660 				Aliste	idx2;
661 
662 				for (ALIST_TRAVERSE(sdp->sd_GOTndxs,
663 				    idx2, gnp)) {
664 					gottable->gt_sym = sdp;
665 					gottable->gt_gndx.gn_gotndx =
666 					    gnp->gn_gotndx;
667 					gottable->gt_gndx.gn_addend =
668 					    gnp->gn_addend;
669 					gottable++;
670 				}
671 			}
672 
673 			if ((type = ELF_ST_TYPE(sym->st_info)) == STT_SECTION)
674 				continue;
675 
676 			/*
677 			 * Ignore any symbols that have been marked as invalid
678 			 * during input processing.  Providing these aren't used
679 			 * for relocation they'll just be dropped from the
680 			 * output image.
681 			 */
682 			if (sdp->sd_flags & FLG_SY_INVALID)
683 				continue;
684 
685 			/*
686 			 * If the section that this symbol was associated
687 			 * with has been discarded - then we discard
688 			 * the local symbol along with it.
689 			 */
690 			if (sdp->sd_flags & FLG_SY_ISDISC)
691 				continue;
692 
693 			/*
694 			 * If this symbol is from a different file
695 			 * than the input descriptor we are processing,
696 			 * treat it as if it has FLG_SY_ISDISC set.
697 			 * This happens when sloppy_comdat_reloc()
698 			 * replaces a symbol to a discarded comdat section
699 			 * with an equivalent symbol from a different
700 			 * file. We only want to enter such a symbol
701 			 * once --- as part of the file that actually
702 			 * supplies it.
703 			 */
704 			if (ifl != sdp->sd_file)
705 				continue;
706 
707 
708 			/*
709 			 * Generate an output symbol to represent this input
710 			 * symbol.  Even if the symbol table is to be stripped
711 			 * we still need to update any local symbols that are
712 			 * used during relocation.
713 			 */
714 			enter_in_symtab = symtab &&
715 			    (!(ofl->ofl_flags & FLG_OF_REDLSYM) ||
716 			    sdp->sd_move);
717 			enter_in_ldynsym = ldynsym && sdp->sd_name &&
718 			    ldynsym_symtype[type] &&
719 			    !(ofl->ofl_flags & FLG_OF_REDLSYM);
720 			_symshndx = NULL;
721 
722 			if (enter_in_symtab) {
723 				if (!dynsym)
724 					sdp->sd_symndx = *symndx;
725 				symtab[symtab_ndx] = *sym;
726 				/*
727 				 * Provided this isn't an unnamed register
728 				 * symbol, update its name.
729 				 */
730 				if (((sdp->sd_flags & FLG_SY_REGSYM) == 0) ||
731 				    symtab[symtab_ndx].st_name) {
732 					(void) st_setstring(strtab,
733 					    sdp->sd_name, &stoff);
734 					symtab[symtab_ndx].st_name = stoff;
735 				}
736 				sdp->sd_flags &= ~FLG_SY_CLEAN;
737 				if (symshndx)
738 					_symshndx = &symshndx[symtab_ndx];
739 				sdp->sd_sym = sym = &symtab[symtab_ndx++];
740 
741 				if ((sdp->sd_flags & FLG_SY_SPECSEC) &&
742 				    (sym->st_shndx == SHN_ABS) &&
743 				    !enter_in_ldynsym)
744 					continue;
745 			} else if (enter_in_ldynsym) {
746 				/*
747 				 * Not using symtab, but we do have ldynsym
748 				 * available.
749 				 */
750 				ldynsym[ldynsym_ndx] = *sym;
751 				(void) st_setstring(dynstr, sdp->sd_name,
752 				    &stoff);
753 				ldynsym[ldynsym_ndx].st_name = stoff;
754 
755 				sdp->sd_flags &= ~FLG_SY_CLEAN;
756 				if (ldynshndx)
757 					_symshndx = &ldynshndx[ldynsym_ndx];
758 				sdp->sd_sym = sym = &ldynsym[ldynsym_ndx];
759 				/* Add it to sort section if it qualifies */
760 				ADD_TO_DYNSORT(sdp, sym, type, ldynsym_ndx);
761 				ldynsym_ndx++;
762 			} else {	/* Not using symtab or ldynsym */
763 				/*
764 				 * If this symbol requires modifying to provide
765 				 * for a relocation or move table update, make
766 				 * a copy of it.
767 				 */
768 				if (!(sdp->sd_flags & FLG_SY_UPREQD) &&
769 				    !(sdp->sd_move))
770 					continue;
771 				if ((sdp->sd_flags & FLG_SY_SPECSEC) &&
772 				    (sym->st_shndx == SHN_ABS))
773 					continue;
774 
775 				if (ld_sym_copy(sdp) == S_ERROR)
776 					return ((Addr)S_ERROR);
777 				sym = sdp->sd_sym;
778 			}
779 
780 			/*
781 			 * Update the symbols contents if necessary.
782 			 */
783 			update_done = 0;
784 			if (type == STT_FILE) {
785 				sdp->sd_shndx = sym->st_shndx = SHN_ABS;
786 				sdp->sd_flags |= FLG_SY_SPECSEC;
787 				update_done = 1;
788 			}
789 
790 			/*
791 			 * If we are expanding the locally bound partially
792 			 * initialized symbols, then update the address here.
793 			 */
794 			if (ofl->ofl_isparexpn &&
795 			    (sdp->sd_flags & FLG_SY_PAREXPN) && !update_done) {
796 				sym->st_shndx = parexpnndx;
797 				sdp->sd_isc = ofl->ofl_isparexpn;
798 				sym->st_value = parexpnaddr;
799 				parexpnaddr += sym->st_size;
800 				if ((flags & FLG_OF_RELOBJ) == 0)
801 					sym->st_value -= parexpnbase;
802 			}
803 
804 			/*
805 			 * If this isn't an UNDEF symbol (ie. an input section
806 			 * is associated), update the symbols value and index.
807 			 */
808 			if (((isc = sdp->sd_isc) != 0) && !update_done) {
809 				Word	sectndx;
810 
811 				osp = isc->is_osdesc;
812 				/* LINTED */
813 				sym->st_value +=
814 				    (Off)_elf_getxoff(isc->is_indata);
815 				if (!(flags & FLG_OF_RELOBJ)) {
816 					sym->st_value += osp->os_shdr->sh_addr;
817 					/*
818 					 * TLS symbols are relative to
819 					 * the TLS segment.
820 					 */
821 					if ((type == STT_TLS) &&
822 					    (ofl->ofl_tlsphdr)) {
823 						sym->st_value -=
824 						    ofl->ofl_tlsphdr->p_vaddr;
825 					}
826 				}
827 				/* LINTED */
828 				if ((sdp->sd_shndx = sectndx =
829 				    elf_ndxscn(osp->os_scn)) >= SHN_LORESERVE) {
830 					if (_symshndx) {
831 						*_symshndx = sectndx;
832 					}
833 					sym->st_shndx = SHN_XINDEX;
834 				} else {
835 					/* LINTED */
836 					sym->st_shndx = sectndx;
837 				}
838 			}
839 
840 			/*
841 			 * If entering the symbol in both the symtab and the
842 			 * ldynsym, then the one in symtab needs to be
843 			 * copied to ldynsym. If it is only in the ldynsym,
844 			 * then the code above already set it up and we have
845 			 * nothing more to do here.
846 			 */
847 			if (enter_in_symtab && enter_in_ldynsym) {
848 				ldynsym[ldynsym_ndx] = *sym;
849 				(void) st_setstring(dynstr, sdp->sd_name,
850 				    &stoff);
851 				ldynsym[ldynsym_ndx].st_name = stoff;
852 
853 				if (_symshndx && ldynshndx)
854 					ldynshndx[ldynsym_ndx] = *_symshndx;
855 
856 				/* Add it to sort section if it qualifies */
857 				ADD_TO_DYNSORT(sdp, sym, type, ldynsym_ndx);
858 
859 				ldynsym_ndx++;
860 			}
861 		}
862 	}
863 	symtab_gbl_bndx = symtab_ndx;	/* .symtab index of 1st global entry */
864 
865 	/*
866 	 * Two special symbols are `_init' and `_fini'.  If these are supplied
867 	 * by crti.o then they are used to represent the total concatenation of
868 	 * the `.init' and `.fini' sections.
869 	 *
870 	 * First, determine whether any .init or .fini sections exist.  If these
871 	 * sections exist when a dynamic object is being built, but no `_init'
872 	 * or `_fini' symbols are found, then the user is probably building this
873 	 * object directly from ld(1) rather than using a compiler driver that
874 	 * provides the symbols via crt's.
875 	 *
876 	 * If the .init or .fini section exist, and their associated symbols,
877 	 * determine the size of the sections and updated the symbols value
878 	 * accordingly.
879 	 */
880 	if (((sdp = ld_sym_find(MSG_ORIG(MSG_SYM_INIT_U), SYM_NOHASH, 0,
881 	    ofl)) != NULL) && (sdp->sd_ref == REF_REL_NEED) && sdp->sd_isc &&
882 	    (sdp->sd_isc->is_osdesc == iosp)) {
883 		if (ld_sym_copy(sdp) == S_ERROR)
884 			return ((Addr)S_ERROR);
885 		sdp->sd_sym->st_size = sdp->sd_isc->is_osdesc->os_shdr->sh_size;
886 
887 	} else if (iosp && !(flags & FLG_OF_RELOBJ)) {
888 		eprintf(ofl->ofl_lml, ERR_WARNING, MSG_INTL(MSG_SYM_NOCRT),
889 		    MSG_ORIG(MSG_SYM_INIT_U), MSG_ORIG(MSG_SCN_INIT));
890 	}
891 
892 	if (((sdp = ld_sym_find(MSG_ORIG(MSG_SYM_FINI_U), SYM_NOHASH, 0,
893 	    ofl)) != NULL) && (sdp->sd_ref == REF_REL_NEED) && sdp->sd_isc &&
894 	    (sdp->sd_isc->is_osdesc == fosp)) {
895 		if (ld_sym_copy(sdp) == S_ERROR)
896 			return ((Addr)S_ERROR);
897 		sdp->sd_sym->st_size = sdp->sd_isc->is_osdesc->os_shdr->sh_size;
898 
899 	} else if (fosp && !(flags & FLG_OF_RELOBJ)) {
900 		eprintf(ofl->ofl_lml, ERR_WARNING, MSG_INTL(MSG_SYM_NOCRT),
901 		    MSG_ORIG(MSG_SYM_FINI_U), MSG_ORIG(MSG_SCN_FINI));
902 	}
903 
904 	/*
905 	 * Assign .bss information for use with updating COMMON symbols.
906 	 */
907 	if (ofl->ofl_isbss) {
908 		isc = ofl->ofl_isbss;
909 		osp = isc->is_osdesc;
910 
911 		bssaddr = osp->os_shdr->sh_addr +
912 		    (Off)_elf_getxoff(isc->is_indata);
913 		/* LINTED */
914 		bssndx = elf_ndxscn(osp->os_scn);
915 	}
916 
917 #if	defined(_ELF64)
918 	/*
919 	 * For amd64 target, assign .lbss information for use
920 	 * with updating LCOMMON symbols.
921 	 */
922 	if ((ld_targ.t_m.m_mach == EM_AMD64) && ofl->ofl_islbss) {
923 		osp = ofl->ofl_islbss->is_osdesc;
924 
925 		lbssaddr = osp->os_shdr->sh_addr +
926 		    (Off)_elf_getxoff(ofl->ofl_islbss->is_indata);
927 		/* LINTED */
928 		lbssndx = elf_ndxscn(osp->os_scn);
929 	}
930 #endif
931 
932 	/*
933 	 * Assign .tlsbss information for use with updating COMMON symbols.
934 	 */
935 	if (ofl->ofl_istlsbss) {
936 		osp = ofl->ofl_istlsbss->is_osdesc;
937 		tlsbssaddr = osp->os_shdr->sh_addr +
938 		    (Off)_elf_getxoff(ofl->ofl_istlsbss->is_indata);
939 		/* LINTED */
940 		tlsbssndx = elf_ndxscn(osp->os_scn);
941 	}
942 
943 	if ((sorted_syms = libld_calloc(ofl->ofl_globcnt +
944 	    ofl->ofl_elimcnt + ofl->ofl_scopecnt,
945 	    sizeof (*sorted_syms))) == NULL)
946 		return ((Addr)S_ERROR);
947 
948 	scndx = 0;
949 	ssndx = ofl->ofl_scopecnt + ofl->ofl_elimcnt;
950 
951 	/*
952 	 * Traverse the internal symbol table updating information and
953 	 * allocating common.
954 	 */
955 	for (sav = avl_first(&ofl->ofl_symavl); sav;
956 	    sav = AVL_NEXT(&ofl->ofl_symavl, sav)) {
957 		Sym	*symptr;
958 		int	local;
959 		int	restore;
960 
961 		sdp = sav->sav_symdesc;
962 
963 		/*
964 		 * Ignore any symbols that have been marked as invalid during
965 		 * input processing.  Providing these aren't used for
966 		 * relocation, they will be dropped from the output image.
967 		 */
968 		if (sdp->sd_flags & FLG_SY_INVALID) {
969 			DBG_CALL(Dbg_syms_old(ofl, sdp));
970 			DBG_CALL(Dbg_syms_ignore(ofl, sdp));
971 			continue;
972 		}
973 
974 		/*
975 		 * Only needed symbols are copied to the output symbol table.
976 		 */
977 		if (sdp->sd_ref == REF_DYN_SEEN)
978 			continue;
979 
980 		if ((sdp->sd_flags1 & FLG_SY1_HIDDEN) &&
981 		    (flags & FLG_OF_PROCRED))
982 			local = 1;
983 		else
984 			local = 0;
985 
986 		if (local || (ofl->ofl_hashbkts == 0)) {
987 			sorted_syms[scndx++].sl_sdp = sdp;
988 		} else {
989 			sorted_syms[ssndx].sl_hval = sdp->sd_aux->sa_hash %
990 			    ofl->ofl_hashbkts;
991 			sorted_syms[ssndx].sl_sdp = sdp;
992 			ssndx++;
993 		}
994 
995 		/*
996 		 * Note - expand the COMMON symbols here because an address
997 		 * must be assigned to them in the same order that space was
998 		 * calculated in sym_validate().  If this ordering isn't
999 		 * followed differing alignment requirements can throw us all
1000 		 * out of whack.
1001 		 *
1002 		 * The expanded .bss global symbol is handled here as well.
1003 		 *
1004 		 * The actual adding entries into the symbol table still occurs
1005 		 * below in hashbucket order.
1006 		 */
1007 		symptr = sdp->sd_sym;
1008 		restore = 0;
1009 		if ((sdp->sd_flags & FLG_SY_PAREXPN) ||
1010 		    ((sdp->sd_flags & FLG_SY_SPECSEC) &&
1011 		    (sdp->sd_shndx = symptr->st_shndx) == SHN_COMMON)) {
1012 
1013 			/*
1014 			 * An expanded symbol goes to a special .data section
1015 			 * prepared for that purpose (ofl->ofl_isparexpn).
1016 			 * Assign COMMON allocations to .bss.
1017 			 * Otherwise leave it as is.
1018 			 */
1019 			if (sdp->sd_flags & FLG_SY_PAREXPN) {
1020 				restore = 1;
1021 				sdp->sd_shndx = parexpnndx;
1022 				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1023 				symptr->st_value = (Xword) S_ROUND(
1024 				    parexpnaddr, symptr->st_value);
1025 				parexpnaddr = symptr->st_value +
1026 				    symptr->st_size;
1027 				sdp->sd_isc = ofl->ofl_isparexpn;
1028 				sdp->sd_flags |= FLG_SY_COMMEXP;
1029 
1030 			} else if (ELF_ST_TYPE(symptr->st_info) != STT_TLS &&
1031 			    (local || !(flags & FLG_OF_RELOBJ))) {
1032 				restore = 1;
1033 				sdp->sd_shndx = bssndx;
1034 				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1035 				symptr->st_value = (Xword)S_ROUND(bssaddr,
1036 				    symptr->st_value);
1037 				bssaddr = symptr->st_value + symptr->st_size;
1038 				sdp->sd_isc = ofl->ofl_isbss;
1039 				sdp->sd_flags |= FLG_SY_COMMEXP;
1040 
1041 			} else if (ELF_ST_TYPE(symptr->st_info) == STT_TLS &&
1042 			    (local || !(flags & FLG_OF_RELOBJ))) {
1043 				restore = 1;
1044 				sdp->sd_shndx = tlsbssndx;
1045 				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1046 				symptr->st_value = (Xword)S_ROUND(tlsbssaddr,
1047 				    symptr->st_value);
1048 				tlsbssaddr = symptr->st_value + symptr->st_size;
1049 				sdp->sd_isc = ofl->ofl_istlsbss;
1050 				sdp->sd_flags |= FLG_SY_COMMEXP;
1051 				/*
1052 				 * TLS symbols are relative to the TLS segment.
1053 				 */
1054 				symptr->st_value -= ofl->ofl_tlsphdr->p_vaddr;
1055 			}
1056 #if	defined(_ELF64)
1057 		} else if ((ld_targ.t_m.m_mach == EM_AMD64) &&
1058 		    (sdp->sd_flags & FLG_SY_SPECSEC) &&
1059 		    ((sdp->sd_shndx = symptr->st_shndx) ==
1060 		    SHN_X86_64_LCOMMON) &&
1061 		    ((local || !(flags & FLG_OF_RELOBJ)))) {
1062 			restore = 1;
1063 			sdp->sd_shndx = lbssndx;
1064 			sdp->sd_flags &= ~FLG_SY_SPECSEC;
1065 			symptr->st_value = (Xword)S_ROUND(lbssaddr,
1066 			    symptr->st_value);
1067 			lbssaddr = symptr->st_value + symptr->st_size;
1068 			sdp->sd_isc = ofl->ofl_islbss;
1069 			sdp->sd_flags |= FLG_SY_COMMEXP;
1070 #endif
1071 		}
1072 
1073 		if (restore != 0) {
1074 			uchar_t		type, bind;
1075 
1076 			/*
1077 			 * Make sure this COMMON symbol is returned to the same
1078 			 * binding as was defined in the original relocatable
1079 			 * object reference.
1080 			 */
1081 			type = ELF_ST_TYPE(symptr->st_info);
1082 			if (sdp->sd_flags & FLG_SY_GLOBREF)
1083 				bind = STB_GLOBAL;
1084 			else
1085 				bind = STB_WEAK;
1086 
1087 			symptr->st_info = ELF_ST_INFO(bind, type);
1088 		}
1089 	}
1090 
1091 	if (ofl->ofl_hashbkts) {
1092 		qsort(sorted_syms + ofl->ofl_scopecnt + ofl->ofl_elimcnt,
1093 		    ofl->ofl_globcnt, sizeof (Sym_s_list),
1094 		    (int (*)(const void *, const void *))sym_hash_compare);
1095 	}
1096 
1097 	for (ssndx = 0; ssndx < (ofl->ofl_elimcnt + ofl->ofl_scopecnt +
1098 	    ofl->ofl_globcnt); ssndx++) {
1099 		const char	*name;
1100 		Sym		*sym;
1101 		Sym_aux		*sap;
1102 		Half		spec;
1103 		int		local = 0, dynlocal = 0, enter_in_symtab;
1104 		Gotndx		*gnp;
1105 		Word		sectndx;
1106 
1107 		sdp = sorted_syms[ssndx].sl_sdp;
1108 		sectndx = 0;
1109 
1110 		if (symtab)
1111 			enter_in_symtab = 1;
1112 		else
1113 			enter_in_symtab = 0;
1114 
1115 		/*
1116 		 * Assign a got offset if necessary.
1117 		 */
1118 		if ((ld_targ.t_mr.mr_assign_got != NULL) &&
1119 		    (*ld_targ.t_mr.mr_assign_got)(ofl, sdp) == S_ERROR)
1120 			return ((Addr)S_ERROR);
1121 
1122 		if (DBG_ENABLED) {
1123 			Aliste	idx2;
1124 
1125 			for (ALIST_TRAVERSE(sdp->sd_GOTndxs, idx2, gnp)) {
1126 				gottable->gt_sym = sdp;
1127 				gottable->gt_gndx.gn_gotndx = gnp->gn_gotndx;
1128 				gottable->gt_gndx.gn_addend = gnp->gn_addend;
1129 				gottable++;
1130 			}
1131 
1132 			if (sdp->sd_aux && sdp->sd_aux->sa_PLTGOTndx) {
1133 				gottable->gt_sym = sdp;
1134 				gottable->gt_gndx.gn_gotndx =
1135 				    sdp->sd_aux->sa_PLTGOTndx;
1136 				gottable++;
1137 			}
1138 		}
1139 
1140 
1141 		/*
1142 		 * If this symbol has been marked as being reduced to local
1143 		 * scope then it will have to be placed in the scoped portion
1144 		 * of the .symtab.  Retain the appropriate index for use in
1145 		 * version symbol indexing and relocation.
1146 		 */
1147 		if ((sdp->sd_flags1 & FLG_SY1_HIDDEN) &&
1148 		    (flags & FLG_OF_PROCRED)) {
1149 			local = 1;
1150 			if (!(sdp->sd_flags1 & FLG_SY1_ELIM) && !dynsym)
1151 				sdp->sd_symndx = scopesym_ndx;
1152 			else
1153 				sdp->sd_symndx = 0;
1154 
1155 			if (sdp->sd_flags1 & FLG_SY1_ELIM) {
1156 				enter_in_symtab = 0;
1157 			} else if (ldynsym && sdp->sd_sym->st_name &&
1158 			    ldynsym_symtype[
1159 			    ELF_ST_TYPE(sdp->sd_sym->st_info)]) {
1160 				dynlocal = 1;
1161 			}
1162 		} else {
1163 			sdp->sd_symndx = *symndx;
1164 		}
1165 
1166 		/*
1167 		 * Copy basic symbol and string information.
1168 		 */
1169 		name = sdp->sd_name;
1170 		sap = sdp->sd_aux;
1171 
1172 		/*
1173 		 * If we require to record version symbol indexes, update the
1174 		 * associated version symbol information for all defined
1175 		 * symbols.  If a version definition is required any zero value
1176 		 * symbol indexes would have been flagged as undefined symbol
1177 		 * errors, however if we're just scoping these need to fall into
1178 		 * the base of global symbols.
1179 		 */
1180 		if (sdp->sd_symndx && versym) {
1181 			Half	vndx = 0;
1182 
1183 			if (sdp->sd_flags & FLG_SY_MVTOCOMM) {
1184 				vndx = VER_NDX_GLOBAL;
1185 			} else if (sdp->sd_ref == REF_REL_NEED) {
1186 				Half	symflags1 = sdp->sd_flags1;
1187 
1188 				vndx = sap->sa_overndx;
1189 				if ((vndx == 0) &&
1190 				    (sdp->sd_sym->st_shndx != SHN_UNDEF)) {
1191 					if (symflags1 & FLG_SY1_HIDDEN)
1192 						vndx = VER_NDX_LOCAL;
1193 					else
1194 						vndx = VER_NDX_GLOBAL;
1195 				}
1196 			} else if ((sdp->sd_ref == REF_DYN_NEED) &&
1197 			    (sap->sa_dverndx > 0) &&
1198 			    (sap->sa_dverndx <= sdp->sd_file->ifl_vercnt) &&
1199 			    (sdp->sd_file->ifl_verndx != NULL)) {
1200 				/* Use index of verneed record */
1201 				vndx = sdp->sd_file->ifl_verndx
1202 				    [sap->sa_dverndx].vi_overndx;
1203 			}
1204 			versym[sdp->sd_symndx] = vndx;
1205 		}
1206 
1207 		/*
1208 		 * If we are creating the .syminfo section then set per symbol
1209 		 * flags here.
1210 		 */
1211 		if (sdp->sd_symndx && syminfo &&
1212 		    !(sdp->sd_flags & FLG_SY_NOTAVAIL)) {
1213 			int	ndx = sdp->sd_symndx;
1214 			APlist 	**alpp = &(ofl->ofl_syminfsyms);
1215 
1216 			if (sdp->sd_flags & FLG_SY_MVTOCOMM)
1217 				/*
1218 				 * Identify a copy relocation symbol.
1219 				 */
1220 				syminfo[ndx].si_flags |= SYMINFO_FLG_COPY;
1221 
1222 			if (sdp->sd_ref == REF_DYN_NEED) {
1223 				/*
1224 				 * A reference is bound to a needed dependency.
1225 				 * Save this symbol descriptor, as its boundto
1226 				 * element will need updating after the .dynamic
1227 				 * section has been created.  Flag whether this
1228 				 * reference is lazy loadable, and if a direct
1229 				 * binding is to be established.
1230 				 */
1231 				if (aplist_append(alpp, sdp,
1232 				    AL_CNT_OFL_SYMINFOSYMS) == NULL)
1233 					return (0);
1234 
1235 				syminfo[ndx].si_flags |= SYMINFO_FLG_DIRECT;
1236 				if (sdp->sd_flags & FLG_SY_LAZYLD)
1237 					syminfo[ndx].si_flags |=
1238 					    SYMINFO_FLG_LAZYLOAD;
1239 
1240 				/*
1241 				 * Enable direct symbol bindings if:
1242 				 *
1243 				 *  -	Symbol was identified with the DIRECT
1244 				 *	keyword in a mapfile.
1245 				 *
1246 				 *  -	Symbol reference has been bound to a
1247 				 * 	dependency which was specified as
1248 				 *	requiring direct bindings with -zdirect.
1249 				 *
1250 				 *  -	All symbol references are required to
1251 				 *	use direct bindings via -Bdirect.
1252 				 */
1253 				if (sdp->sd_flags1 & FLG_SY1_DIR)
1254 					syminfo[ndx].si_flags |=
1255 					    SYMINFO_FLG_DIRECTBIND;
1256 
1257 			} else if ((sdp->sd_flags & FLG_SY_EXTERN) &&
1258 			    (sdp->sd_sym->st_shndx == SHN_UNDEF)) {
1259 				/*
1260 				 * If this symbol has been explicitly defined
1261 				 * as external, and remains unresolved, mark
1262 				 * it as external.
1263 				 */
1264 				syminfo[ndx].si_boundto = SYMINFO_BT_EXTERN;
1265 
1266 			} else if ((sdp->sd_flags & FLG_SY_PARENT) &&
1267 			    (sdp->sd_sym->st_shndx == SHN_UNDEF)) {
1268 				/*
1269 				 * If this symbol has been explicitly defined
1270 				 * to be a reference to a parent object,
1271 				 * indicate whether a direct binding should be
1272 				 * established.
1273 				 */
1274 				syminfo[ndx].si_flags |= SYMINFO_FLG_DIRECT;
1275 				syminfo[ndx].si_boundto = SYMINFO_BT_PARENT;
1276 				if (sdp->sd_flags1 & FLG_SY1_DIR)
1277 					syminfo[ndx].si_flags |=
1278 					    SYMINFO_FLG_DIRECTBIND;
1279 
1280 			} else if (sdp->sd_flags & FLG_SY_STDFLTR) {
1281 				/*
1282 				 * A filter definition.  Although this symbol
1283 				 * can only be a stub, it might be necessary to
1284 				 * prevent external direct bindings.
1285 				 */
1286 				syminfo[ndx].si_flags |= SYMINFO_FLG_FILTER;
1287 				if (sdp->sd_flags1 & FLG_SY1_NDIR)
1288 					syminfo[ndx].si_flags |=
1289 					    SYMINFO_FLG_NOEXTDIRECT;
1290 
1291 			} else if (sdp->sd_flags & FLG_SY_AUXFLTR) {
1292 				/*
1293 				 * An auxiliary filter definition.  By nature,
1294 				 * this definition is direct, in that should the
1295 				 * filtee lookup fail, we'll fall back to this
1296 				 * object.  It may still be necesssary to
1297 				 * prevent external direct bindings.
1298 				 */
1299 				syminfo[ndx].si_flags |= SYMINFO_FLG_AUXILIARY;
1300 				if (sdp->sd_flags1 & FLG_SY1_NDIR)
1301 					syminfo[ndx].si_flags |=
1302 					    SYMINFO_FLG_NOEXTDIRECT;
1303 
1304 			} else if ((sdp->sd_ref == REF_REL_NEED) &&
1305 			    (sdp->sd_sym->st_shndx != SHN_UNDEF)) {
1306 
1307 				/*
1308 				 * This definition exists within the object
1309 				 * being created.  Flag whether it is necessary
1310 				 * to prevent external direct bindings.
1311 				 */
1312 				if (sdp->sd_flags1 & FLG_SY1_NDIR) {
1313 					syminfo[ndx].si_boundto =
1314 					    SYMINFO_BT_NONE;
1315 					syminfo[ndx].si_flags |=
1316 					    SYMINFO_FLG_NOEXTDIRECT;
1317 				}
1318 
1319 				/*
1320 				 * Indicate that this symbol is acting as an
1321 				 * individual interposer.
1322 				 */
1323 				if (sdp->sd_flags & FLG_SY_INTPOSE) {
1324 					syminfo[ndx].si_flags |=
1325 					    SYMINFO_FLG_INTERPOSE;
1326 				}
1327 
1328 				/*
1329 				 * If external bindings are allowed, or this is
1330 				 * a translator symbol, indicate the binding,
1331 				 * and a direct binding if necessary.
1332 				 */
1333 				if (((sdp->sd_flags1 & FLG_SY1_NDIR) == 0) ||
1334 				    ((dtflags_1 & DF_1_TRANS) && sdp->sd_aux &&
1335 				    sdp->sd_aux->sa_bindto)) {
1336 
1337 					syminfo[ndx].si_flags |=
1338 					    SYMINFO_FLG_DIRECT;
1339 
1340 					if (sdp->sd_flags1 & FLG_SY1_DIR)
1341 						syminfo[ndx].si_flags |=
1342 						    SYMINFO_FLG_DIRECTBIND;
1343 
1344 					/*
1345 					 * If this is a translator, the symbols
1346 					 * boundto element will indicate the
1347 					 * dependency to which it should resolve
1348 					 * rather than itself.  Save this info
1349 					 * for updating after the .dynamic
1350 					 * section has been created.
1351 					 */
1352 					if ((dtflags_1 & DF_1_TRANS) &&
1353 					    sdp->sd_aux &&
1354 					    sdp->sd_aux->sa_bindto) {
1355 						if (aplist_append(alpp, sdp,
1356 						    AL_CNT_OFL_SYMINFOSYMS) ==
1357 						    NULL)
1358 							return (0);
1359 					} else {
1360 						syminfo[ndx].si_boundto =
1361 						    SYMINFO_BT_SELF;
1362 					}
1363 				}
1364 			}
1365 		}
1366 
1367 		/*
1368 		 * Note that the `sym' value is reset to be one of the new
1369 		 * symbol table entries.  This symbol will be updated further
1370 		 * depending on the type of the symbol.  Process the .symtab
1371 		 * first, followed by the .dynsym, thus the `sym' value will
1372 		 * remain as the .dynsym value when the .dynsym is present.
1373 		 * This ensures that any versioning symbols st_name value will
1374 		 * be appropriate for the string table used by version
1375 		 * entries.
1376 		 */
1377 		if (enter_in_symtab) {
1378 			Word	_symndx;
1379 
1380 			if (local)
1381 				_symndx = scopesym_ndx;
1382 			else
1383 				_symndx = symtab_ndx;
1384 
1385 			symtab[_symndx] = *sdp->sd_sym;
1386 			sdp->sd_sym = sym = &symtab[_symndx];
1387 			(void) st_setstring(strtab, name, &stoff);
1388 			sym->st_name = stoff;
1389 		}
1390 		if (dynlocal) {
1391 			ldynsym[ldynscopesym_ndx] = *sdp->sd_sym;
1392 			sdp->sd_sym = sym = &ldynsym[ldynscopesym_ndx];
1393 			(void) st_setstring(dynstr, name, &stoff);
1394 			ldynsym[ldynscopesym_ndx].st_name = stoff;
1395 			/* Add it to sort section if it qualifies */
1396 			ADD_TO_DYNSORT(sdp, sym, ELF_ST_TYPE(sym->st_info),
1397 			    ldynscopesym_ndx);
1398 		}
1399 
1400 		if (dynsym && !local) {
1401 			dynsym[dynsym_ndx] = *sdp->sd_sym;
1402 
1403 			/*
1404 			 * Provided this isn't an unnamed register symbol,
1405 			 * update the symbols name and hash value.
1406 			 */
1407 			if (((sdp->sd_flags & FLG_SY_REGSYM) == 0) ||
1408 			    dynsym[dynsym_ndx].st_name) {
1409 				(void) st_setstring(dynstr, name, &stoff);
1410 				dynsym[dynsym_ndx].st_name = stoff;
1411 
1412 				if (stoff) {
1413 					Word _hashndx;
1414 
1415 					hashval =
1416 					    sap->sa_hash % ofl->ofl_hashbkts;
1417 
1418 					/* LINTED */
1419 					if (_hashndx = hashbkt[hashval]) {
1420 						while (hashchain[_hashndx]) {
1421 							_hashndx =
1422 							    hashchain[_hashndx];
1423 						}
1424 						hashchain[_hashndx] =
1425 						    sdp->sd_symndx;
1426 					} else {
1427 						hashbkt[hashval] =
1428 						    sdp->sd_symndx;
1429 					}
1430 				}
1431 			}
1432 			sdp->sd_sym = sym = &dynsym[dynsym_ndx];
1433 
1434 			/*
1435 			 * Add it to sort section if it qualifies.
1436 			 * The indexes in that section are relative to the
1437 			 * the adjacent SUNW_ldynsym/dymsym pair, so we
1438 			 * add the number of items in SUNW_ldynsym to the
1439 			 * dynsym index.
1440 			 */
1441 			ADD_TO_DYNSORT(sdp, sym, ELF_ST_TYPE(sym->st_info),
1442 			    ldynsym_cnt + dynsym_ndx);
1443 		}
1444 		if (!enter_in_symtab && (!dynsym || (local && !dynlocal))) {
1445 			if (!(sdp->sd_flags & FLG_SY_UPREQD))
1446 				continue;
1447 			sym = sdp->sd_sym;
1448 		} else
1449 			sdp->sd_flags &= ~FLG_SY_CLEAN;
1450 
1451 
1452 		/*
1453 		 * If we have a weak data symbol for which we need the real
1454 		 * symbol also, save this processing until later.
1455 		 *
1456 		 * The exception to this is if the weak/strong have PLT's
1457 		 * assigned to them.  In that case we don't do the post-weak
1458 		 * processing because the PLT's must be maintained so that we
1459 		 * can do 'interpositioning' on both of the symbols.
1460 		 */
1461 		if ((sap->sa_linkndx) &&
1462 		    (ELF_ST_BIND(sym->st_info) == STB_WEAK) &&
1463 		    (!sap->sa_PLTndx)) {
1464 			Sym_desc	*_sdp;
1465 
1466 			_sdp = sdp->sd_file->ifl_oldndx[sap->sa_linkndx];
1467 
1468 			if (_sdp->sd_ref != REF_DYN_SEEN) {
1469 				Wk_desc	wk;
1470 
1471 				if (enter_in_symtab) {
1472 					if (local) {
1473 						wk.wk_symtab =
1474 						    &symtab[scopesym_ndx];
1475 						scopesym_ndx++;
1476 					} else {
1477 						wk.wk_symtab =
1478 						    &symtab[symtab_ndx];
1479 						symtab_ndx++;
1480 					}
1481 				}
1482 				if (dynsym) {
1483 					if (!local) {
1484 						wk.wk_dynsym =
1485 						    &dynsym[dynsym_ndx];
1486 						dynsym_ndx++;
1487 					} else if (dynlocal) {
1488 						wk.wk_dynsym =
1489 						    &ldynsym[ldynscopesym_ndx];
1490 						ldynscopesym_ndx++;
1491 					}
1492 				}
1493 				wk.wk_weak = sdp;
1494 				wk.wk_alias = _sdp;
1495 
1496 				if (alist_append(&weak, &wk,
1497 				    sizeof (Wk_desc), AL_CNT_WEAK) == NULL)
1498 					return ((Addr)S_ERROR);
1499 
1500 				continue;
1501 			}
1502 		}
1503 
1504 		DBG_CALL(Dbg_syms_old(ofl, sdp));
1505 
1506 		spec = NULL;
1507 		/*
1508 		 * assign new symbol value.
1509 		 */
1510 		sectndx = sdp->sd_shndx;
1511 		if (sectndx == SHN_UNDEF) {
1512 			if (((sdp->sd_flags & FLG_SY_REGSYM) == 0) &&
1513 			    (sym->st_value != 0)) {
1514 				eprintf(ofl->ofl_lml, ERR_WARNING,
1515 				    MSG_INTL(MSG_SYM_NOTNULL),
1516 				    demangle(name), sdp->sd_file->ifl_name);
1517 			}
1518 
1519 			/*
1520 			 * Undefined weak global, if we are generating a static
1521 			 * executable, output as an absolute zero.  Otherwise
1522 			 * leave it as is, ld.so.1 will skip symbols of this
1523 			 * type (this technique allows applications and
1524 			 * libraries to test for the existence of a symbol as an
1525 			 * indication of the presence or absence of certain
1526 			 * functionality).
1527 			 */
1528 			if (((flags & (FLG_OF_STATIC | FLG_OF_EXEC)) ==
1529 			    (FLG_OF_STATIC | FLG_OF_EXEC)) &&
1530 			    (ELF_ST_BIND(sym->st_info) == STB_WEAK)) {
1531 				sdp->sd_flags |= FLG_SY_SPECSEC;
1532 				sdp->sd_shndx = sectndx = SHN_ABS;
1533 			}
1534 		} else if ((sdp->sd_flags & FLG_SY_SPECSEC) &&
1535 		    (sectndx == SHN_COMMON)) {
1536 			/* COMMONs have already been processed */
1537 			/* EMPTY */
1538 			;
1539 		} else {
1540 			if ((sdp->sd_flags & FLG_SY_SPECSEC) &&
1541 			    (sectndx == SHN_ABS))
1542 				spec = sdp->sd_aux->sa_symspec;
1543 
1544 			/* LINTED */
1545 			if (sdp->sd_flags & FLG_SY_COMMEXP) {
1546 				/*
1547 				 * This is (or was) a COMMON symbol which was
1548 				 * processed above - no processing
1549 				 * required here.
1550 				 */
1551 				;
1552 			} else if (sdp->sd_ref == REF_DYN_NEED) {
1553 				uchar_t	type, bind;
1554 
1555 				sectndx = SHN_UNDEF;
1556 				sym->st_value = 0;
1557 				sym->st_size = 0;
1558 
1559 				/*
1560 				 * Make sure this undefined symbol is returned
1561 				 * to the same binding as was defined in the
1562 				 * original relocatable object reference.
1563 				 */
1564 				type = ELF_ST_TYPE(sym-> st_info);
1565 				if (sdp->sd_flags & FLG_SY_GLOBREF)
1566 					bind = STB_GLOBAL;
1567 				else
1568 					bind = STB_WEAK;
1569 
1570 				sym->st_info = ELF_ST_INFO(bind, type);
1571 
1572 			} else if (((sdp->sd_flags & FLG_SY_SPECSEC) == 0) &&
1573 			    (sdp->sd_ref == REF_REL_NEED)) {
1574 				osp = sdp->sd_isc->is_osdesc;
1575 				/* LINTED */
1576 				sectndx = elf_ndxscn(osp->os_scn);
1577 
1578 				/*
1579 				 * In an executable, the new symbol value is the
1580 				 * old value (offset into defining section) plus
1581 				 * virtual address of defining section.  In a
1582 				 * relocatable, the new value is the old value
1583 				 * plus the displacement of the section within
1584 				 * the file.
1585 				 */
1586 				/* LINTED */
1587 				sym->st_value +=
1588 				    (Off)_elf_getxoff(sdp->sd_isc->is_indata);
1589 
1590 				if (!(flags & FLG_OF_RELOBJ)) {
1591 					sym->st_value += osp->os_shdr->sh_addr;
1592 					/*
1593 					 * TLS symbols are relative to
1594 					 * the TLS segment.
1595 					 */
1596 					if ((ELF_ST_TYPE(sym->st_info) ==
1597 					    STT_TLS) && (ofl->ofl_tlsphdr))
1598 						sym->st_value -=
1599 						    ofl->ofl_tlsphdr->p_vaddr;
1600 				}
1601 			}
1602 		}
1603 
1604 		if (spec) {
1605 			switch (spec) {
1606 			case SDAUX_ID_ETEXT:
1607 				sym->st_value = etext;
1608 				sectndx = etext_ndx;
1609 				if (etext_abs)
1610 					sdp->sd_flags |= FLG_SY_SPECSEC;
1611 				else
1612 					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1613 				break;
1614 			case SDAUX_ID_EDATA:
1615 				sym->st_value = edata;
1616 				sectndx = edata_ndx;
1617 				if (edata_abs)
1618 					sdp->sd_flags |= FLG_SY_SPECSEC;
1619 				else
1620 					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1621 				break;
1622 			case SDAUX_ID_END:
1623 				sym->st_value = end;
1624 				sectndx = end_ndx;
1625 				if (end_abs)
1626 					sdp->sd_flags |= FLG_SY_SPECSEC;
1627 				else
1628 					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1629 				break;
1630 			case SDAUX_ID_START:
1631 				sym->st_value = start;
1632 				sectndx = start_ndx;
1633 				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1634 				break;
1635 			case SDAUX_ID_DYN:
1636 				if (flags & FLG_OF_DYNAMIC) {
1637 					sym->st_value = ofl->
1638 					    ofl_osdynamic->os_shdr->sh_addr;
1639 					/* LINTED */
1640 					sectndx = elf_ndxscn(
1641 					    ofl->ofl_osdynamic->os_scn);
1642 					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1643 				}
1644 				break;
1645 			case SDAUX_ID_PLT:
1646 				if (ofl->ofl_osplt) {
1647 					sym->st_value = ofl->
1648 					    ofl_osplt->os_shdr->sh_addr;
1649 					/* LINTED */
1650 					sectndx = elf_ndxscn(
1651 					    ofl->ofl_osplt->os_scn);
1652 					sdp->sd_flags &= ~FLG_SY_SPECSEC;
1653 				}
1654 				break;
1655 			case SDAUX_ID_GOT:
1656 				/*
1657 				 * Symbol bias for negative growing tables is
1658 				 * stored in symbol's value during
1659 				 * allocate_got().
1660 				 */
1661 				sym->st_value += ofl->
1662 				    ofl_osgot->os_shdr->sh_addr;
1663 				/* LINTED */
1664 				sectndx = elf_ndxscn(ofl->
1665 				    ofl_osgot->os_scn);
1666 				sdp->sd_flags &= ~FLG_SY_SPECSEC;
1667 				break;
1668 			default:
1669 				/* NOTHING */
1670 				;
1671 			}
1672 		}
1673 
1674 		/*
1675 		 * If a plt index has been assigned to an undefined function,
1676 		 * update the symbols value to the appropriate .plt address.
1677 		 */
1678 		if ((flags & FLG_OF_DYNAMIC) && (flags & FLG_OF_EXEC) &&
1679 		    (sdp->sd_file) &&
1680 		    (sdp->sd_file->ifl_ehdr->e_type == ET_DYN) &&
1681 		    (ELF_ST_TYPE(sym->st_info) == STT_FUNC) &&
1682 		    !(flags & FLG_OF_BFLAG)) {
1683 			if (sap->sa_PLTndx)
1684 				sym->st_value =
1685 				    (*ld_targ.t_mr.mr_calc_plt_addr)(sdp, ofl);
1686 		}
1687 
1688 		/*
1689 		 * Finish updating the symbols.
1690 		 */
1691 
1692 		/*
1693 		 * Sym Update: if scoped local - set local binding
1694 		 */
1695 		if (local)
1696 			sym->st_info = ELF_ST_INFO(STB_LOCAL,
1697 			    ELF_ST_TYPE(sym->st_info));
1698 
1699 		/*
1700 		 * Sym Updated: If both the .symtab and .dynsym
1701 		 * are present then we've actually updated the information in
1702 		 * the .dynsym, therefore copy this same information to the
1703 		 * .symtab entry.
1704 		 */
1705 		sdp->sd_shndx = sectndx;
1706 		if (enter_in_symtab && dynsym && (!local || dynlocal)) {
1707 			Word _symndx = dynlocal ? scopesym_ndx : symtab_ndx;
1708 
1709 			symtab[_symndx].st_value = sym->st_value;
1710 			symtab[_symndx].st_size = sym->st_size;
1711 			symtab[_symndx].st_info = sym->st_info;
1712 			symtab[_symndx].st_other = sym->st_other;
1713 		}
1714 
1715 		if (enter_in_symtab) {
1716 			Word	_symndx;
1717 
1718 			if (local)
1719 				_symndx = scopesym_ndx++;
1720 			else
1721 				_symndx = symtab_ndx++;
1722 			if (((sdp->sd_flags & FLG_SY_SPECSEC) == 0) &&
1723 			    (sectndx >= SHN_LORESERVE)) {
1724 				assert(symshndx != NULL);
1725 				symshndx[_symndx] = sectndx;
1726 				symtab[_symndx].st_shndx = SHN_XINDEX;
1727 			} else {
1728 				/* LINTED */
1729 				symtab[_symndx].st_shndx = (Half)sectndx;
1730 			}
1731 		}
1732 
1733 		if (dynsym && (!local || dynlocal)) {
1734 			/*
1735 			 * dynsym and ldynsym are distinct tables, so
1736 			 * we use indirection to access the right one
1737 			 * and the related extended section index array.
1738 			 */
1739 			Word	_symndx;
1740 			Sym	*_dynsym;
1741 			Word	*_dynshndx;
1742 
1743 			if (!local) {
1744 				_symndx = dynsym_ndx++;
1745 				_dynsym = dynsym;
1746 				_dynshndx = dynshndx;
1747 			} else {
1748 				_symndx = ldynscopesym_ndx++;
1749 				_dynsym = ldynsym;
1750 				_dynshndx = ldynshndx;
1751 			}
1752 			if (((sdp->sd_flags & FLG_SY_SPECSEC) == 0) &&
1753 			    (sectndx >= SHN_LORESERVE)) {
1754 				assert(_dynshndx != NULL);
1755 				_dynshndx[_symndx] = sectndx;
1756 				_dynsym[_symndx].st_shndx = SHN_XINDEX;
1757 			} else {
1758 				/* LINTED */
1759 				_dynsym[_symndx].st_shndx = (Half)sectndx;
1760 			}
1761 		}
1762 
1763 		DBG_CALL(Dbg_syms_new(ofl, sym, sdp));
1764 	}
1765 
1766 	/*
1767 	 * Now that all the symbols have been processed update any weak symbols
1768 	 * information (ie. copy all information except `st_name').  As both
1769 	 * symbols will be represented in the output, return the weak symbol to
1770 	 * its correct type.
1771 	 */
1772 	for (ALIST_TRAVERSE(weak, idx1, wkp)) {
1773 		Sym_desc	*sdp, *_sdp;
1774 		Sym		*sym, *_sym, *__sym;
1775 		uchar_t		bind;
1776 
1777 		sdp = wkp->wk_weak;
1778 		_sdp = wkp->wk_alias;
1779 		_sym = _sdp->sd_sym;
1780 
1781 		sdp->sd_flags |= FLG_SY_WEAKDEF;
1782 
1783 		/*
1784 		 * If the symbol definition has been scoped then assign it to
1785 		 * be local, otherwise if it's from a shared object then we need
1786 		 * to maintain the binding of the original reference.
1787 		 */
1788 		if (sdp->sd_flags1 & FLG_SY1_HIDDEN) {
1789 			if (flags & FLG_OF_PROCRED)
1790 				bind = STB_LOCAL;
1791 			else
1792 				bind = STB_WEAK;
1793 		} else if ((sdp->sd_ref == REF_DYN_NEED) &&
1794 		    (sdp->sd_flags & FLG_SY_GLOBREF))
1795 			bind = STB_GLOBAL;
1796 		else
1797 			bind = STB_WEAK;
1798 
1799 		DBG_CALL(Dbg_syms_old(ofl, sdp));
1800 		if ((sym = wkp->wk_symtab) != 0) {
1801 			sym = wkp->wk_symtab;
1802 			sym->st_value = _sym->st_value;
1803 			sym->st_size = _sym->st_size;
1804 			sym->st_other = _sym->st_other;
1805 			sym->st_shndx = _sym->st_shndx;
1806 			sym->st_info = ELF_ST_INFO(bind,
1807 			    ELF_ST_TYPE(sym->st_info));
1808 			__sym = sym;
1809 		}
1810 		if ((sym = wkp->wk_dynsym) != 0) {
1811 			sym = wkp->wk_dynsym;
1812 			sym->st_value = _sym->st_value;
1813 			sym->st_size = _sym->st_size;
1814 			sym->st_other = _sym->st_other;
1815 			sym->st_shndx = _sym->st_shndx;
1816 			sym->st_info = ELF_ST_INFO(bind,
1817 			    ELF_ST_TYPE(sym->st_info));
1818 			__sym = sym;
1819 		}
1820 		DBG_CALL(Dbg_syms_new(ofl, __sym, sdp));
1821 	}
1822 
1823 	/*
1824 	 * Now display GOT debugging information if required.
1825 	 */
1826 	DBG_CALL(Dbg_got_display(ofl, 0, 0,
1827 	    ld_targ.t_m.m_got_xnumber, ld_targ.t_m.m_got_entsize));
1828 
1829 	/*
1830 	 * Update the section headers information. sh_info is
1831 	 * supposed to contain the offset at which the first
1832 	 * global symbol resides in the symbol table, while
1833 	 * sh_link contains the section index of the associated
1834 	 * string table.
1835 	 */
1836 	if (symtab) {
1837 		Shdr	*shdr = ofl->ofl_ossymtab->os_shdr;
1838 
1839 		shdr->sh_info = symtab_gbl_bndx;
1840 		/* LINTED */
1841 		shdr->sh_link = (Word)elf_ndxscn(ofl->ofl_osstrtab->os_scn);
1842 		if (symshndx) {
1843 			shdr = ofl->ofl_ossymshndx->os_shdr;
1844 			shdr->sh_link =
1845 			    (Word)elf_ndxscn(ofl->ofl_ossymtab->os_scn);
1846 		}
1847 
1848 		/*
1849 		 * Ensure that the expected number of symbols
1850 		 * were entered into the right spots:
1851 		 *	- Scoped symbols in the right range
1852 		 *	- Globals start at the right spot
1853 		 *		(correct number of locals entered)
1854 		 *	- The table is exactly filled
1855 		 *		(correct number of globals entered)
1856 		 */
1857 		assert((scopesym_bndx + ofl->ofl_scopecnt) == scopesym_ndx);
1858 		assert(shdr->sh_info == (ofl->ofl_shdrcnt +
1859 		    ofl->ofl_locscnt + ofl->ofl_scopecnt + 2));
1860 		assert((shdr->sh_info + ofl->ofl_globcnt) == symtab_ndx);
1861 	}
1862 	if (dynsym) {
1863 		Shdr	*shdr = ofl->ofl_osdynsym->os_shdr;
1864 
1865 		shdr->sh_info = 1 + ofl->ofl_dynshdrcnt + ofl->ofl_lregsymcnt;
1866 		/* LINTED */
1867 		shdr->sh_link = (Word)elf_ndxscn(ofl->ofl_osdynstr->os_scn);
1868 
1869 		ofl->ofl_oshash->os_shdr->sh_link =
1870 		    /* LINTED */
1871 		    (Word)elf_ndxscn(ofl->ofl_osdynsym->os_scn);
1872 		if (dynshndx) {
1873 			shdr = ofl->ofl_osdynshndx->os_shdr;
1874 			shdr->sh_link =
1875 			    (Word)elf_ndxscn(ofl->ofl_osdynsym->os_scn);
1876 		}
1877 	}
1878 	if (ldynsym) {
1879 		Shdr	*shdr = ofl->ofl_osldynsym->os_shdr;
1880 
1881 		/* ldynsym has no globals, so give index one past the end */
1882 		shdr->sh_info = ldynsym_ndx;
1883 
1884 		/*
1885 		 * The ldynsym and dynsym must be adjacent. The
1886 		 * idea is that rtld should be able to start with
1887 		 * the ldynsym and march straight through the end
1888 		 * of dynsym, seeing them as a single symbol table,
1889 		 * despite the fact that they are in distinct sections.
1890 		 * Ensure that this happened correctly.
1891 		 *
1892 		 * Note that I use ldynsym_ndx here instead of the
1893 		 * computation I used to set the section size
1894 		 * (found in ldynsym_cnt). The two will agree, unless
1895 		 * we somehow miscounted symbols or failed to insert them
1896 		 * all. Using ldynsym_ndx here catches that error in
1897 		 * addition to checking for adjacency.
1898 		 */
1899 		assert(dynsym == (ldynsym + ldynsym_ndx));
1900 
1901 
1902 		/* LINTED */
1903 		shdr->sh_link = (Word)elf_ndxscn(ofl->ofl_osdynstr->os_scn);
1904 
1905 		if (ldynshndx) {
1906 			shdr = ofl->ofl_osldynshndx->os_shdr;
1907 			shdr->sh_link =
1908 			    (Word)elf_ndxscn(ofl->ofl_osldynsym->os_scn);
1909 		}
1910 
1911 		/*
1912 		 * The presence of .SUNW_ldynsym means that there may be
1913 		 * associated sort sections, one for regular symbols
1914 		 * and the other for TLS. Each sort section needs the
1915 		 * following done:
1916 		 *	- Section header link references .SUNW_ldynsym
1917 		 *	- Should have received the expected # of items
1918 		 *	- Sorted by increasing address
1919 		 */
1920 		if (ofl->ofl_osdynsymsort) {	/* .SUNW_dynsymsort */
1921 			ofl->ofl_osdynsymsort->os_shdr->sh_link =
1922 			    (Word)elf_ndxscn(ofl->ofl_osldynsym->os_scn);
1923 			assert(ofl->ofl_dynsymsortcnt == dynsymsort_ndx);
1924 
1925 			if (dynsymsort_ndx > 1) {
1926 				dynsort_compare_syms = ldynsym;
1927 				qsort(dynsymsort, dynsymsort_ndx,
1928 				    sizeof (*dynsymsort), dynsort_compare);
1929 				dynsort_dupwarn(ofl, ldynsym,
1930 				    st_getstrbuf(dynstr),
1931 				    dynsymsort, dynsymsort_ndx,
1932 				    MSG_ORIG(MSG_SCN_DYNSYMSORT));
1933 			}
1934 		}
1935 		if (ofl->ofl_osdyntlssort) {	/* .SUNW_dyntlssort */
1936 			ofl->ofl_osdyntlssort->os_shdr->sh_link =
1937 			    (Word)elf_ndxscn(ofl->ofl_osldynsym->os_scn);
1938 			assert(ofl->ofl_dyntlssortcnt == dyntlssort_ndx);
1939 
1940 			if (dyntlssort_ndx > 1) {
1941 				dynsort_compare_syms = ldynsym;
1942 				qsort(dyntlssort, dyntlssort_ndx,
1943 				    sizeof (*dyntlssort), dynsort_compare);
1944 				dynsort_dupwarn(ofl, ldynsym,
1945 				    st_getstrbuf(dynstr),
1946 				    dyntlssort, dyntlssort_ndx,
1947 				    MSG_ORIG(MSG_SCN_DYNTLSSORT));
1948 			}
1949 		}
1950 	}
1951 
1952 	/*
1953 	 * Used by ld.so.1 only.
1954 	 */
1955 	return (etext);
1956 
1957 #undef ADD_TO_DYNSORT
1958 }
1959 
1960 /*
1961  * Build the dynamic section.
1962  *
1963  * This routine must be maintained in parallel with make_dynamic()
1964  * in sections.c
1965  */
1966 static int
1967 update_odynamic(Ofl_desc *ofl)
1968 {
1969 	Aliste		idx;
1970 	Ifl_desc	*ifl;
1971 	Sym_desc	*sdp;
1972 	Shdr		*shdr;
1973 	Dyn		*_dyn = (Dyn *)ofl->ofl_osdynamic->os_outdata->d_buf;
1974 	Dyn		*dyn;
1975 	Str_tbl		*dynstr;
1976 	size_t		stoff;
1977 	ofl_flag_t	flags = ofl->ofl_flags;
1978 	int		not_relobj = !(flags & FLG_OF_RELOBJ);
1979 	Word		cnt;
1980 
1981 	/*
1982 	 * A relocatable object with a dynamic section is possible, though
1983 	 * rare. One use for this feature is to produce drivers
1984 	 * for the kernel, loaded by krtld.
1985 	 *
1986 	 * Only a limited subset of DT_ entries apply to relocatable
1987 	 * objects:
1988 	 *
1989 	 *	DT_NEEDED
1990 	 *	DT_RUNPATH/DT_RPATH
1991 	 *	DT_FLAGS
1992 	 *	DT_FLAGS1
1993 	 *	DT_SUNW_STRPAD
1994 	 *	DT_LDMACH
1995 	 */
1996 	dynstr = ofl->ofl_dynstrtab;
1997 	ofl->ofl_osdynamic->os_shdr->sh_link =
1998 	    /* LINTED */
1999 	    (Word)elf_ndxscn(ofl->ofl_osdynstr->os_scn);
2000 
2001 	dyn = _dyn;
2002 
2003 	for (APLIST_TRAVERSE(ofl->ofl_sos, idx, ifl)) {
2004 		if ((ifl->ifl_flags &
2005 		    (FLG_IF_IGNORE | FLG_IF_DEPREQD)) == FLG_IF_IGNORE)
2006 			continue;
2007 
2008 		/*
2009 		 * Create and set up the DT_POSFLAG_1 entry here if required.
2010 		 */
2011 		if ((ifl->ifl_flags & (FLG_IF_LAZYLD|FLG_IF_GRPPRM)) &&
2012 		    (ifl->ifl_flags & (FLG_IF_NEEDED)) && not_relobj) {
2013 			dyn->d_tag = DT_POSFLAG_1;
2014 			if (ifl->ifl_flags & FLG_IF_LAZYLD)
2015 				dyn->d_un.d_val = DF_P1_LAZYLOAD;
2016 			if (ifl->ifl_flags & FLG_IF_GRPPRM)
2017 				dyn->d_un.d_val |= DF_P1_GROUPPERM;
2018 			dyn++;
2019 		}
2020 
2021 		if (ifl->ifl_flags & (FLG_IF_NEEDED | FLG_IF_NEEDSTR))
2022 			dyn->d_tag = DT_NEEDED;
2023 		else
2024 			continue;
2025 
2026 		(void) st_setstring(dynstr, ifl->ifl_soname, &stoff);
2027 		dyn->d_un.d_val = stoff;
2028 		/* LINTED */
2029 		ifl->ifl_neededndx = (Half)(((uintptr_t)dyn - (uintptr_t)_dyn) /
2030 		    sizeof (Dyn));
2031 		dyn++;
2032 	}
2033 
2034 	if (not_relobj) {
2035 		if (ofl->ofl_dtsfltrs != NULL) {
2036 			Dfltr_desc	*dftp;
2037 
2038 			for (ALIST_TRAVERSE(ofl->ofl_dtsfltrs, idx, dftp)) {
2039 				if (dftp->dft_flag == FLG_SY_AUXFLTR)
2040 					dyn->d_tag = DT_SUNW_AUXILIARY;
2041 				else
2042 					dyn->d_tag = DT_SUNW_FILTER;
2043 
2044 				(void) st_setstring(dynstr, dftp->dft_str,
2045 				    &stoff);
2046 				dyn->d_un.d_val = stoff;
2047 				dftp->dft_ndx = (Half)(((uintptr_t)dyn -
2048 				    (uintptr_t)_dyn) / sizeof (Dyn));
2049 				dyn++;
2050 			}
2051 		}
2052 		if (((sdp = ld_sym_find(MSG_ORIG(MSG_SYM_INIT_U),
2053 		    SYM_NOHASH, 0, ofl)) != NULL) &&
2054 		    (sdp->sd_ref == REF_REL_NEED) &&
2055 		    (sdp->sd_sym->st_shndx != SHN_UNDEF)) {
2056 			dyn->d_tag = DT_INIT;
2057 			dyn->d_un.d_ptr = sdp->sd_sym->st_value;
2058 			dyn++;
2059 		}
2060 		if (((sdp = ld_sym_find(MSG_ORIG(MSG_SYM_FINI_U),
2061 		    SYM_NOHASH, 0, ofl)) != NULL) &&
2062 		    (sdp->sd_ref == REF_REL_NEED) &&
2063 		    (sdp->sd_sym->st_shndx != SHN_UNDEF)) {
2064 			dyn->d_tag = DT_FINI;
2065 			dyn->d_un.d_ptr = sdp->sd_sym->st_value;
2066 			dyn++;
2067 		}
2068 		if (ofl->ofl_soname) {
2069 			dyn->d_tag = DT_SONAME;
2070 			(void) st_setstring(dynstr, ofl->ofl_soname, &stoff);
2071 			dyn->d_un.d_val = stoff;
2072 			dyn++;
2073 		}
2074 		if (ofl->ofl_filtees) {
2075 			if (flags & FLG_OF_AUX) {
2076 				dyn->d_tag = DT_AUXILIARY;
2077 			} else {
2078 				dyn->d_tag = DT_FILTER;
2079 			}
2080 			(void) st_setstring(dynstr, ofl->ofl_filtees, &stoff);
2081 			dyn->d_un.d_val = stoff;
2082 			dyn++;
2083 		}
2084 	}
2085 
2086 	if (ofl->ofl_rpath) {
2087 		(void) st_setstring(dynstr, ofl->ofl_rpath, &stoff);
2088 		dyn->d_tag = DT_RUNPATH;
2089 		dyn->d_un.d_val = stoff;
2090 		dyn++;
2091 		dyn->d_tag = DT_RPATH;
2092 		dyn->d_un.d_val = stoff;
2093 		dyn++;
2094 	}
2095 
2096 	if (not_relobj) {
2097 		Aliste	idx;
2098 
2099 		if (ofl->ofl_config) {
2100 			dyn->d_tag = DT_CONFIG;
2101 			(void) st_setstring(dynstr, ofl->ofl_config, &stoff);
2102 			dyn->d_un.d_val = stoff;
2103 			dyn++;
2104 		}
2105 		if (ofl->ofl_depaudit) {
2106 			dyn->d_tag = DT_DEPAUDIT;
2107 			(void) st_setstring(dynstr, ofl->ofl_depaudit, &stoff);
2108 			dyn->d_un.d_val = stoff;
2109 			dyn++;
2110 		}
2111 		if (ofl->ofl_audit) {
2112 			dyn->d_tag = DT_AUDIT;
2113 			(void) st_setstring(dynstr, ofl->ofl_audit, &stoff);
2114 			dyn->d_un.d_val = stoff;
2115 			dyn++;
2116 		}
2117 
2118 		dyn->d_tag = DT_HASH;
2119 		dyn->d_un.d_ptr = ofl->ofl_oshash->os_shdr->sh_addr;
2120 		dyn++;
2121 
2122 		shdr = ofl->ofl_osdynstr->os_shdr;
2123 		dyn->d_tag = DT_STRTAB;
2124 		dyn->d_un.d_ptr = shdr->sh_addr;
2125 		dyn++;
2126 
2127 		dyn->d_tag = DT_STRSZ;
2128 		dyn->d_un.d_ptr = shdr->sh_size;
2129 		dyn++;
2130 
2131 		shdr = ofl->ofl_osdynsym->os_shdr;
2132 		dyn->d_tag = DT_SYMTAB;
2133 		dyn->d_un.d_ptr = shdr->sh_addr;
2134 		dyn++;
2135 
2136 		dyn->d_tag = DT_SYMENT;
2137 		dyn->d_un.d_ptr = shdr->sh_entsize;
2138 		dyn++;
2139 
2140 		if (ofl->ofl_osldynsym) {
2141 			/*
2142 			 * We have arranged for the .SUNW_ldynsym data to be
2143 			 * immediately in front of the .dynsym data.
2144 			 * This means that you could start at the top
2145 			 * of .SUNW_ldynsym and see the data for both tables
2146 			 * without a break. This is the view we want to
2147 			 * provide for DT_SUNW_SYMTAB, which is why we
2148 			 * add the lengths together.
2149 			 */
2150 			Shdr *lshdr = ofl->ofl_osldynsym->os_shdr;
2151 			dyn->d_tag = DT_SUNW_SYMTAB;
2152 			dyn->d_un.d_ptr = lshdr->sh_addr;
2153 			dyn++;
2154 
2155 			dyn->d_tag = DT_SUNW_SYMSZ;
2156 			dyn->d_un.d_val = lshdr->sh_size + shdr->sh_size;
2157 			dyn++;
2158 		}
2159 
2160 		if (ofl->ofl_osdynsymsort || ofl->ofl_osdyntlssort) {
2161 			dyn->d_tag = DT_SUNW_SORTENT;
2162 			dyn->d_un.d_val = sizeof (Word);
2163 			dyn++;
2164 		}
2165 
2166 		if (ofl->ofl_osdynsymsort) {
2167 			dyn->d_tag = DT_SUNW_SYMSORT;
2168 			dyn->d_un.d_ptr =
2169 			    ofl->ofl_osdynsymsort->os_shdr->sh_addr;
2170 			dyn++;
2171 
2172 			dyn->d_tag = DT_SUNW_SYMSORTSZ;
2173 			dyn->d_un.d_val =
2174 			    ofl->ofl_osdynsymsort->os_shdr->sh_size;
2175 			dyn++;
2176 		}
2177 
2178 		if (ofl->ofl_osdyntlssort) {
2179 			dyn->d_tag = DT_SUNW_TLSSORT;
2180 			dyn->d_un.d_ptr =
2181 			    ofl->ofl_osdyntlssort->os_shdr->sh_addr;
2182 			dyn++;
2183 
2184 			dyn->d_tag = DT_SUNW_TLSSORTSZ;
2185 			dyn->d_un.d_val =
2186 			    ofl->ofl_osdyntlssort->os_shdr->sh_size;
2187 			dyn++;
2188 		}
2189 
2190 		/*
2191 		 * Reserve the DT_CHECKSUM entry.  Its value will be filled in
2192 		 * after the complete image is built.
2193 		 */
2194 		dyn->d_tag = DT_CHECKSUM;
2195 		ofl->ofl_checksum = &dyn->d_un.d_val;
2196 		dyn++;
2197 
2198 		/*
2199 		 * Versioning sections: DT_VERDEF and DT_VERNEED.
2200 		 *
2201 		 * The Solaris ld does not produce DT_VERSYM, but the GNU ld
2202 		 * does, in order to support their style of versioning, which
2203 		 * differs from ours:
2204 		 *
2205 		 *	- The top bit of the 16-bit Versym index is
2206 		 *		not part of the version, but is interpreted
2207 		 *		as a "hidden bit".
2208 		 *
2209 		 *	- External (SHN_UNDEF) symbols can have non-zero
2210 		 *		Versym values, which specify versions in
2211 		 *		referenced objects, via the Verneed section.
2212 		 *
2213 		 *	- The vna_other field of the Vernaux structures
2214 		 *		found in the Verneed section are not zero as
2215 		 *		with Solaris, but instead contain the version
2216 		 *		index to be used by Versym indices to reference
2217 		 *		the given external version.
2218 		 *
2219 		 * The Solaris ld, rtld, and elfdump programs all interpret the
2220 		 * presence of DT_VERSYM as meaning that GNU versioning rules
2221 		 * apply to the given file. If DT_VERSYM is not present,
2222 		 * then Solaris versioning rules apply. If we should ever need
2223 		 * to change our ld so that it does issue DT_VERSYM, then
2224 		 * this rule for detecting GNU versioning will no longer work.
2225 		 * In that case, we will have to invent a way to explicitly
2226 		 * specify the style of versioning in use, perhaps via a
2227 		 * new dynamic entry named something like DT_SUNW_VERSIONSTYLE,
2228 		 * where the d_un.d_val value specifies which style is to be
2229 		 * used.
2230 		 */
2231 		if ((flags & (FLG_OF_VERDEF | FLG_OF_NOVERSEC)) ==
2232 		    FLG_OF_VERDEF) {
2233 			shdr = ofl->ofl_osverdef->os_shdr;
2234 			dyn->d_tag = DT_VERDEF;
2235 			dyn->d_un.d_ptr = shdr->sh_addr;
2236 			dyn++;
2237 			dyn->d_tag = DT_VERDEFNUM;
2238 			dyn->d_un.d_ptr = shdr->sh_info;
2239 			dyn++;
2240 		}
2241 		if ((flags & (FLG_OF_VERNEED | FLG_OF_NOVERSEC)) ==
2242 		    FLG_OF_VERNEED) {
2243 			shdr = ofl->ofl_osverneed->os_shdr;
2244 			dyn->d_tag = DT_VERNEED;
2245 			dyn->d_un.d_ptr = shdr->sh_addr;
2246 			dyn++;
2247 			dyn->d_tag = DT_VERNEEDNUM;
2248 			dyn->d_un.d_ptr = shdr->sh_info;
2249 			dyn++;
2250 		}
2251 
2252 		if ((flags & FLG_OF_COMREL) && ofl->ofl_relocrelcnt) {
2253 			dyn->d_tag = ld_targ.t_m.m_rel_dt_count;
2254 			dyn->d_un.d_val = ofl->ofl_relocrelcnt;
2255 			dyn++;
2256 		}
2257 		if (flags & FLG_OF_TEXTREL) {
2258 			/*
2259 			 * Only the presence of this entry is used in this
2260 			 * implementation, not the value stored.
2261 			 */
2262 			dyn->d_tag = DT_TEXTREL;
2263 			dyn->d_un.d_val = 0;
2264 			dyn++;
2265 		}
2266 
2267 		if (ofl->ofl_osfiniarray) {
2268 			shdr = ofl->ofl_osfiniarray->os_shdr;
2269 
2270 			dyn->d_tag = DT_FINI_ARRAY;
2271 			dyn->d_un.d_ptr = shdr->sh_addr;
2272 			dyn++;
2273 
2274 			dyn->d_tag = DT_FINI_ARRAYSZ;
2275 			dyn->d_un.d_val = shdr->sh_size;
2276 			dyn++;
2277 		}
2278 
2279 		if (ofl->ofl_osinitarray) {
2280 			shdr = ofl->ofl_osinitarray->os_shdr;
2281 
2282 			dyn->d_tag = DT_INIT_ARRAY;
2283 			dyn->d_un.d_ptr = shdr->sh_addr;
2284 			dyn++;
2285 
2286 			dyn->d_tag = DT_INIT_ARRAYSZ;
2287 			dyn->d_un.d_val = shdr->sh_size;
2288 			dyn++;
2289 		}
2290 
2291 		if (ofl->ofl_ospreinitarray) {
2292 			shdr = ofl->ofl_ospreinitarray->os_shdr;
2293 
2294 			dyn->d_tag = DT_PREINIT_ARRAY;
2295 			dyn->d_un.d_ptr = shdr->sh_addr;
2296 			dyn++;
2297 
2298 			dyn->d_tag = DT_PREINIT_ARRAYSZ;
2299 			dyn->d_un.d_val = shdr->sh_size;
2300 			dyn++;
2301 		}
2302 
2303 		if (ofl->ofl_pltcnt) {
2304 			shdr =  ofl->ofl_osplt->os_relosdesc->os_shdr;
2305 
2306 			dyn->d_tag = DT_PLTRELSZ;
2307 			dyn->d_un.d_ptr = shdr->sh_size;
2308 			dyn++;
2309 			dyn->d_tag = DT_PLTREL;
2310 			dyn->d_un.d_ptr = ld_targ.t_m.m_rel_dt_type;
2311 			dyn++;
2312 			dyn->d_tag = DT_JMPREL;
2313 			dyn->d_un.d_ptr = shdr->sh_addr;
2314 			dyn++;
2315 		}
2316 		if (ofl->ofl_pltpad) {
2317 			shdr =  ofl->ofl_osplt->os_shdr;
2318 
2319 			dyn->d_tag = DT_PLTPAD;
2320 			if (ofl->ofl_pltcnt) {
2321 				dyn->d_un.d_ptr = shdr->sh_addr +
2322 				    ld_targ.t_m.m_plt_reservsz +
2323 				    ofl->ofl_pltcnt * ld_targ.t_m.m_plt_entsize;
2324 			} else
2325 				dyn->d_un.d_ptr = shdr->sh_addr;
2326 			dyn++;
2327 			dyn->d_tag = DT_PLTPADSZ;
2328 			dyn->d_un.d_val = ofl->ofl_pltpad *
2329 			    ld_targ.t_m.m_plt_entsize;
2330 			dyn++;
2331 		}
2332 		if (ofl->ofl_relocsz) {
2333 			dyn->d_tag = ld_targ.t_m.m_rel_dt_type;
2334 			dyn->d_un.d_ptr = ofl->ofl_osrelhead->os_shdr->sh_addr;
2335 			dyn++;
2336 			dyn->d_tag = ld_targ.t_m.m_rel_dt_size;
2337 			dyn->d_un.d_ptr = ofl->ofl_relocsz;
2338 			dyn++;
2339 			dyn->d_tag = ld_targ.t_m.m_rel_dt_ent;
2340 			if (ofl->ofl_osrelhead->os_shdr->sh_type == SHT_REL)
2341 				dyn->d_un.d_ptr = sizeof (Rel);
2342 			else
2343 				dyn->d_un.d_ptr = sizeof (Rela);
2344 			dyn++;
2345 		}
2346 		if (ofl->ofl_ossyminfo) {
2347 			shdr = ofl->ofl_ossyminfo->os_shdr;
2348 			dyn->d_tag = DT_SYMINFO;
2349 			dyn->d_un.d_ptr = shdr->sh_addr;
2350 			dyn++;
2351 			dyn->d_tag = DT_SYMINSZ;
2352 			dyn->d_un.d_val = shdr->sh_size;
2353 			dyn++;
2354 			dyn->d_tag = DT_SYMINENT;
2355 			dyn->d_un.d_val = sizeof (Syminfo);
2356 			dyn++;
2357 		}
2358 		if (ofl->ofl_osmove) {
2359 			Os_desc	*osp;
2360 
2361 			dyn->d_tag = DT_MOVEENT;
2362 			osp = ofl->ofl_osmove;
2363 			dyn->d_un.d_val = osp->os_shdr->sh_entsize;
2364 			dyn++;
2365 			dyn->d_tag = DT_MOVESZ;
2366 			dyn->d_un.d_val = osp->os_shdr->sh_size;
2367 			dyn++;
2368 			dyn->d_tag = DT_MOVETAB;
2369 			dyn->d_un.d_val = osp->os_shdr->sh_addr;
2370 			dyn++;
2371 		}
2372 		if (ofl->ofl_regsymcnt) {
2373 			int	ndx;
2374 
2375 			for (ndx = 0; ndx < ofl->ofl_regsymsno; ndx++) {
2376 				if ((sdp = ofl->ofl_regsyms[ndx]) == NULL)
2377 					continue;
2378 
2379 				dyn->d_tag = ld_targ.t_m.m_dt_register;
2380 				dyn->d_un.d_val = sdp->sd_symndx;
2381 				dyn++;
2382 			}
2383 		}
2384 
2385 		for (APLIST_TRAVERSE(ofl->ofl_rtldinfo, idx, sdp)) {
2386 			dyn->d_tag = DT_SUNW_RTLDINF;
2387 			dyn->d_un.d_ptr = sdp->sd_sym->st_value;
2388 			dyn++;
2389 		}
2390 
2391 		if (ofl->ofl_osdynamic->os_sgdesc &&
2392 		    (ofl->ofl_osdynamic->os_sgdesc->sg_phdr.p_flags & PF_W)) {
2393 			if (ofl->ofl_osinterp) {
2394 				dyn->d_tag = DT_DEBUG;
2395 				dyn->d_un.d_ptr = 0;
2396 				dyn++;
2397 			}
2398 
2399 			dyn->d_tag = DT_FEATURE_1;
2400 			if (ofl->ofl_osmove)
2401 				dyn->d_un.d_val = 0;
2402 			else
2403 				dyn->d_un.d_val = DTF_1_PARINIT;
2404 			dyn++;
2405 		}
2406 
2407 		if (ofl->ofl_oscap) {
2408 			dyn->d_tag = DT_SUNW_CAP;
2409 			dyn->d_un.d_val = ofl->ofl_oscap->os_shdr->sh_addr;
2410 			dyn++;
2411 		}
2412 
2413 		if (flags & FLG_OF_SYMBOLIC) {
2414 			dyn->d_tag = DT_SYMBOLIC;
2415 			dyn->d_un.d_val = 0;
2416 			dyn++;
2417 		}
2418 	}
2419 
2420 	dyn->d_tag = DT_FLAGS;
2421 	dyn->d_un.d_val = ofl->ofl_dtflags;
2422 	dyn++;
2423 
2424 	/*
2425 	 * If -Bdirect was specified, but some NODIRECT symbols were specified
2426 	 * via a mapfile, or -znodirect was used on the command line, then
2427 	 * clear the DF_1_DIRECT flag.  The resultant object will use per-symbol
2428 	 * direct bindings rather than be enabled for global direct bindings.
2429 	 */
2430 	if (ofl->ofl_flags1 & FLG_OF1_NDIRECT) {
2431 		ofl->ofl_dtflags_1 &= ~DF_1_DIRECT;
2432 		ofl->ofl_dtflags_1 |= DF_1_NODIRECT;
2433 	}
2434 
2435 	dyn->d_tag = DT_FLAGS_1;
2436 	dyn->d_un.d_val = ofl->ofl_dtflags_1;
2437 	dyn++;
2438 
2439 	dyn->d_tag = DT_SUNW_STRPAD;
2440 	dyn->d_un.d_val = DYNSTR_EXTRA_PAD;
2441 	dyn++;
2442 
2443 	dyn->d_tag = DT_SUNW_LDMACH;
2444 	dyn->d_un.d_val = ld_sunw_ldmach();
2445 	dyn++;
2446 
2447 	(*ld_targ.t_mr.mr_mach_update_odynamic)(ofl, &dyn);
2448 
2449 	for (cnt = 1 + DYNAMIC_EXTRA_ELTS; cnt--; dyn++) {
2450 		dyn->d_tag = DT_NULL;
2451 		dyn->d_un.d_val = 0;
2452 	}
2453 
2454 	/*
2455 	 * Ensure that we wrote the right number of entries. If not,
2456 	 * we either miscounted in make_dynamic(), or we did something wrong
2457 	 * in this function.
2458 	 */
2459 	assert((ofl->ofl_osdynamic->os_shdr->sh_size /
2460 	    ofl->ofl_osdynamic->os_shdr->sh_entsize) ==
2461 	    ((uintptr_t)dyn - (uintptr_t)_dyn) / sizeof (*dyn));
2462 
2463 	return (1);
2464 }
2465 
2466 /*
2467  * Build the version definition section
2468  */
2469 static int
2470 update_overdef(Ofl_desc *ofl)
2471 {
2472 	Aliste		idx1;
2473 	Ver_desc	*vdp, *_vdp;
2474 	Verdef		*vdf, *_vdf;
2475 	int		num = 0;
2476 	Os_desc		*strosp;
2477 
2478 	/*
2479 	 * Traverse the version descriptors and update the version structures
2480 	 * to point to the dynstr name in preparation for building the version
2481 	 * section structure.
2482 	 */
2483 	for (APLIST_TRAVERSE(ofl->ofl_verdesc, idx1, vdp)) {
2484 		Sym_desc	*sdp;
2485 
2486 		if (vdp->vd_flags & VER_FLG_BASE) {
2487 			const char	*name = vdp->vd_name;
2488 			size_t		stoff;
2489 
2490 			/*
2491 			 * Create a new string table entry to represent the base
2492 			 * version name (there is no corresponding symbol for
2493 			 * this).
2494 			 */
2495 			if (!(ofl->ofl_flags & FLG_OF_DYNAMIC)) {
2496 				(void) st_setstring(ofl->ofl_strtab,
2497 				    name, &stoff);
2498 				/* LINTED */
2499 				vdp->vd_name = (const char *)stoff;
2500 			} else {
2501 				(void) st_setstring(ofl->ofl_dynstrtab,
2502 				    name, &stoff);
2503 				/* LINTED */
2504 				vdp->vd_name = (const char *)stoff;
2505 			}
2506 		} else {
2507 			sdp = ld_sym_find(vdp->vd_name, vdp->vd_hash, 0, ofl);
2508 			/* LINTED */
2509 			vdp->vd_name = (const char *)
2510 			    (uintptr_t)sdp->sd_sym->st_name;
2511 		}
2512 	}
2513 
2514 	_vdf = vdf = (Verdef *)ofl->ofl_osverdef->os_outdata->d_buf;
2515 
2516 	/*
2517 	 * Traverse the version descriptors and update the version section to
2518 	 * reflect each version and its associated dependencies.
2519 	 */
2520 	for (APLIST_TRAVERSE(ofl->ofl_verdesc, idx1, vdp)) {
2521 		Aliste		idx2;
2522 		Half		cnt = 1;
2523 		Verdaux		*vdap, *_vdap;
2524 
2525 		_vdap = vdap = (Verdaux *)(vdf + 1);
2526 
2527 		vdf->vd_version = VER_DEF_CURRENT;
2528 		vdf->vd_flags	= vdp->vd_flags & MSK_VER_USER;
2529 		vdf->vd_ndx	= vdp->vd_ndx;
2530 		vdf->vd_hash	= vdp->vd_hash;
2531 
2532 		/* LINTED */
2533 		vdap->vda_name = (uintptr_t)vdp->vd_name;
2534 		vdap++;
2535 		/* LINTED */
2536 		_vdap->vda_next = (Word)((uintptr_t)vdap - (uintptr_t)_vdap);
2537 
2538 		/*
2539 		 * Traverse this versions dependency list generating the
2540 		 * appropriate version dependency entries.
2541 		 */
2542 		for (APLIST_TRAVERSE(vdp->vd_deps, idx2, _vdp)) {
2543 			/* LINTED */
2544 			vdap->vda_name = (uintptr_t)_vdp->vd_name;
2545 			_vdap = vdap;
2546 			vdap++, cnt++;
2547 			/* LINTED */
2548 			_vdap->vda_next = (Word)((uintptr_t)vdap -
2549 			    (uintptr_t)_vdap);
2550 		}
2551 		_vdap->vda_next = 0;
2552 
2553 		/*
2554 		 * Record the versions auxiliary array offset and the associated
2555 		 * dependency count.
2556 		 */
2557 		/* LINTED */
2558 		vdf->vd_aux = (Word)((uintptr_t)(vdf + 1) - (uintptr_t)vdf);
2559 		vdf->vd_cnt = cnt;
2560 
2561 		/*
2562 		 * Record the next versions offset and update the version
2563 		 * pointer.  Remember the previous version offset as the very
2564 		 * last structures next pointer should be null.
2565 		 */
2566 		_vdf = vdf;
2567 		vdf = (Verdef *)vdap, num++;
2568 		/* LINTED */
2569 		_vdf->vd_next = (Word)((uintptr_t)vdf - (uintptr_t)_vdf);
2570 	}
2571 	_vdf->vd_next = 0;
2572 
2573 	/*
2574 	 * Record the string table association with the version definition
2575 	 * section, and the symbol table associated with the version symbol
2576 	 * table (the actual contents of the version symbol table are filled
2577 	 * in during symbol update).
2578 	 */
2579 	if ((ofl->ofl_flags & FLG_OF_RELOBJ) ||
2580 	    (ofl->ofl_flags & FLG_OF_STATIC)) {
2581 		strosp = ofl->ofl_osstrtab;
2582 	} else {
2583 		strosp = ofl->ofl_osdynstr;
2584 	}
2585 	/* LINTED */
2586 	ofl->ofl_osverdef->os_shdr->sh_link = (Word)elf_ndxscn(strosp->os_scn);
2587 
2588 	/*
2589 	 * The version definition sections `info' field is used to indicate the
2590 	 * number of entries in this section.
2591 	 */
2592 	ofl->ofl_osverdef->os_shdr->sh_info = num;
2593 
2594 	return (1);
2595 }
2596 
2597 /*
2598  * Finish the version symbol index section
2599  */
2600 static int
2601 update_oversym(Ofl_desc *ofl)
2602 {
2603 	Os_desc		*symosp;
2604 
2605 	/*
2606 	 * Record the string table association with the version definition
2607 	 * section, and the symbol table associated with the version symbol
2608 	 * table (the actual contents of the version symbol table are filled
2609 	 * in during symbol update).
2610 	 */
2611 	if ((ofl->ofl_flags & FLG_OF_RELOBJ) ||
2612 	    (ofl->ofl_flags & FLG_OF_STATIC)) {
2613 		symosp = ofl->ofl_ossymtab;
2614 	} else {
2615 		symosp = ofl->ofl_osdynsym;
2616 	}
2617 
2618 	/* LINTED */
2619 	ofl->ofl_osversym->os_shdr->sh_link = (Word)elf_ndxscn(symosp->os_scn);
2620 
2621 	return (1);
2622 }
2623 
2624 /*
2625  * Build the version needed section
2626  */
2627 static int
2628 update_overneed(Ofl_desc *ofl)
2629 {
2630 	Aliste		idx1;
2631 	Ifl_desc	*ifl;
2632 	Verneed		*vnd, *_vnd;
2633 	Str_tbl		*dynstr;
2634 	Word		num = 0;
2635 	int		has_specver;
2636 
2637 	dynstr = ofl->ofl_dynstrtab;
2638 	_vnd = vnd = (Verneed *)ofl->ofl_osverneed->os_outdata->d_buf;
2639 
2640 	/*
2641 	 * Traverse the shared object list looking for dependencies that have
2642 	 * versions defined within them.
2643 	 */
2644 	for (APLIST_TRAVERSE(ofl->ofl_sos, idx1, ifl)) {
2645 		Half		_cnt;
2646 		Word		cnt = 0;
2647 		Vernaux		*_vnap, *vnap;
2648 		Sdf_desc	*sdf = ifl->ifl_sdfdesc;
2649 		size_t		stoff;
2650 
2651 		if (!(ifl->ifl_flags & FLG_IF_VERNEED))
2652 			continue;
2653 
2654 		vnd->vn_version = VER_NEED_CURRENT;
2655 
2656 		(void) st_setstring(dynstr, ifl->ifl_soname, &stoff);
2657 		vnd->vn_file = stoff;
2658 
2659 		_vnap = vnap = (Vernaux *)(vnd + 1);
2660 
2661 		has_specver = sdf && (sdf->sdf_flags & FLG_SDF_SPECVER);
2662 		if (has_specver) {
2663 			Sdv_desc	*sdv;
2664 			Aliste		idx2;
2665 
2666 			/*
2667 			 * If version needed definitions were specified in
2668 			 * a mapfile ($SPECVERS=*) then record those
2669 			 * definitions.
2670 			 */
2671 			for (ALIST_TRAVERSE(sdf->sdf_verneed, idx2, sdv)) {
2672 				/*
2673 				 * If this $SPECVERS item corresponds
2674 				 * to a real version, then skip it here
2675 				 * in favor of the real one below.
2676 				 */
2677 				if (sdv->sdv_flags & FLG_SDV_MATCHED)
2678 					continue;
2679 
2680 				(void) st_setstring(dynstr, sdv->sdv_name,
2681 				    &stoff);
2682 				vnap->vna_name = stoff;
2683 				/* LINTED */
2684 				vnap->vna_hash = (Word)elf_hash(sdv->sdv_name);
2685 				vnap->vna_flags = 0;
2686 				vnap->vna_other = 0;
2687 				_vnap = vnap;
2688 				vnap++;
2689 				cnt++;
2690 				/* LINTED */
2691 				_vnap->vna_next = (Word)((uintptr_t)vnap -
2692 				    (uintptr_t)_vnap);
2693 			}
2694 		}
2695 
2696 		/*
2697 		 * Traverse the version index list recording
2698 		 * each version as a needed dependency.
2699 		 */
2700 		for (_cnt = 0; _cnt <= ifl->ifl_vercnt; _cnt++) {
2701 			Ver_index	*vip = &ifl->ifl_verndx[_cnt];
2702 
2703 			if (vip->vi_flags & FLG_VER_REFER) {
2704 				(void) st_setstring(dynstr, vip->vi_name,
2705 				    &stoff);
2706 				vnap->vna_name = stoff;
2707 
2708 				if (vip->vi_desc) {
2709 					vnap->vna_hash = vip->vi_desc->vd_hash;
2710 					vnap->vna_flags =
2711 					    vip->vi_desc->vd_flags;
2712 				} else {
2713 					vnap->vna_hash = 0;
2714 					vnap->vna_flags = 0;
2715 				}
2716 				vnap->vna_other = vip->vi_overndx;
2717 
2718 				/*
2719 				 * If version A inherits version B, then
2720 				 * B is implicit in A. It suffices for ld.so.1
2721 				 * to verify A at runtime and skip B. The
2722 				 * version normalization process sets the INFO
2723 				 * flag for the versions we want ld.so.1 to
2724 				 * skip. By default, we progagate these flags
2725 				 * to the output object as computed.
2726 				 *
2727 				 * The presence of $SPECVERS items alters
2728 				 * matters. If $SPECVERS are present in the
2729 				 * mapfile, then any version that corresponds
2730 				 * to the $SPECVERS must be validated, and
2731 				 * all others must be skipped. This is true
2732 				 * even if it causes ld.so.1 to incorrectly
2733 				 * validate the object ---- it is an override
2734 				 * mechanism.
2735 				 */
2736 				if ((!has_specver &&
2737 				    (vip->vi_flags & VER_FLG_INFO)) ||
2738 				    (has_specver &&
2739 				    !(vip->vi_flags & FLG_VER_SPECVER)))
2740 					vnap->vna_flags |= VER_FLG_INFO;
2741 
2742 				_vnap = vnap;
2743 				vnap++, cnt++;
2744 				_vnap->vna_next =
2745 				    /* LINTED */
2746 				    (Word)((uintptr_t)vnap - (uintptr_t)_vnap);
2747 			}
2748 		}
2749 
2750 		_vnap->vna_next = 0;
2751 
2752 		/*
2753 		 * Record the versions auxiliary array offset and
2754 		 * the associated dependency count.
2755 		 */
2756 		/* LINTED */
2757 		vnd->vn_aux = (Word)((uintptr_t)(vnd + 1) - (uintptr_t)vnd);
2758 		/* LINTED */
2759 		vnd->vn_cnt = (Half)cnt;
2760 
2761 		/*
2762 		 * Record the next versions offset and update the version
2763 		 * pointer.  Remember the previous version offset as the very
2764 		 * last structures next pointer should be null.
2765 		 */
2766 		_vnd = vnd;
2767 		vnd = (Verneed *)vnap, num++;
2768 		/* LINTED */
2769 		_vnd->vn_next = (Word)((uintptr_t)vnd - (uintptr_t)_vnd);
2770 	}
2771 	_vnd->vn_next = 0;
2772 
2773 	/*
2774 	 * Record association on string table section and use the
2775 	 * `info' field to indicate the number of entries in this
2776 	 * section.
2777 	 */
2778 	ofl->ofl_osverneed->os_shdr->sh_link =
2779 	    /* LINTED */
2780 	    (Word)elf_ndxscn(ofl->ofl_osdynstr->os_scn);
2781 	ofl->ofl_osverneed->os_shdr->sh_info = num;
2782 
2783 	return (1);
2784 }
2785 
2786 
2787 /*
2788  * Update syminfo section.
2789  */
2790 static uintptr_t
2791 update_osyminfo(Ofl_desc *ofl)
2792 {
2793 	Os_desc		*symosp, *infosp = ofl->ofl_ossyminfo;
2794 	Syminfo		*sip = infosp->os_outdata->d_buf;
2795 	Shdr		*shdr = infosp->os_shdr;
2796 	char		*strtab;
2797 	Aliste		idx;
2798 	Sym_desc	*sdp;
2799 	Sfltr_desc	*sftp;
2800 
2801 	if (ofl->ofl_flags & FLG_OF_RELOBJ) {
2802 		symosp = ofl->ofl_ossymtab;
2803 		strtab = ofl->ofl_osstrtab->os_outdata->d_buf;
2804 	} else {
2805 		symosp = ofl->ofl_osdynsym;
2806 		strtab = ofl->ofl_osdynstr->os_outdata->d_buf;
2807 	}
2808 
2809 	/* LINTED */
2810 	infosp->os_shdr->sh_link = (Word)elf_ndxscn(symosp->os_scn);
2811 	if (ofl->ofl_osdynamic)
2812 		infosp->os_shdr->sh_info =
2813 		    /* LINTED */
2814 		    (Word)elf_ndxscn(ofl->ofl_osdynamic->os_scn);
2815 
2816 	/*
2817 	 * Update any references with the index into the dynamic table.
2818 	 */
2819 	for (APLIST_TRAVERSE(ofl->ofl_syminfsyms, idx, sdp)) {
2820 		Ifl_desc	*ifl;
2821 
2822 		if (sdp->sd_aux && sdp->sd_aux->sa_bindto)
2823 			ifl = sdp->sd_aux->sa_bindto;
2824 		else
2825 			ifl = sdp->sd_file;
2826 		sip[sdp->sd_symndx].si_boundto = ifl->ifl_neededndx;
2827 	}
2828 
2829 	/*
2830 	 * Update any filtee references with the index into the dynamic table.
2831 	 */
2832 	for (ALIST_TRAVERSE(ofl->ofl_symfltrs, idx, sftp)) {
2833 		Dfltr_desc	*dftp;
2834 
2835 		dftp = alist_item(ofl->ofl_dtsfltrs, sftp->sft_idx);
2836 		sip[sftp->sft_sdp->sd_symndx].si_boundto = dftp->dft_ndx;
2837 	}
2838 
2839 	/*
2840 	 * Display debugging information about section.
2841 	 */
2842 	DBG_CALL(Dbg_syminfo_title(ofl->ofl_lml));
2843 	if (DBG_ENABLED) {
2844 		Word	_cnt, cnt = shdr->sh_size / shdr->sh_entsize;
2845 		Sym	*symtab = symosp->os_outdata->d_buf;
2846 		Dyn	*dyn;
2847 
2848 		if (ofl->ofl_osdynamic)
2849 			dyn = ofl->ofl_osdynamic->os_outdata->d_buf;
2850 		else
2851 			dyn = NULL;
2852 
2853 		for (_cnt = 1; _cnt < cnt; _cnt++) {
2854 			if (sip[_cnt].si_flags || sip[_cnt].si_boundto)
2855 				/* LINTED */
2856 				DBG_CALL(Dbg_syminfo_entry(ofl->ofl_lml, _cnt,
2857 				    &sip[_cnt], &symtab[_cnt], strtab, dyn));
2858 		}
2859 	}
2860 	return (1);
2861 }
2862 
2863 /*
2864  * Build the output elf header.
2865  */
2866 static uintptr_t
2867 update_oehdr(Ofl_desc * ofl)
2868 {
2869 	Ehdr	*ehdr = ofl->ofl_nehdr;
2870 
2871 	/*
2872 	 * If an entry point symbol has already been established (refer
2873 	 * sym_validate()) simply update the elf header entry point with the
2874 	 * symbols value.  If no entry point is defined it will have been filled
2875 	 * with the start address of the first section within the text segment
2876 	 * (refer update_outfile()).
2877 	 */
2878 	if (ofl->ofl_entry)
2879 		ehdr->e_entry =
2880 		    ((Sym_desc *)(ofl->ofl_entry))->sd_sym->st_value;
2881 
2882 	/*
2883 	 * Note. it may be necessary to update the `e_flags' field in the
2884 	 * machine dependent section.
2885 	 */
2886 	ehdr->e_ident[EI_DATA] = ld_targ.t_m.m_data;
2887 	ehdr->e_machine = ofl->ofl_dehdr->e_machine;
2888 	ehdr->e_flags = ofl->ofl_dehdr->e_flags;
2889 	ehdr->e_version = ofl->ofl_dehdr->e_version;
2890 
2891 	if (ehdr->e_machine != ld_targ.t_m.m_mach) {
2892 		if (ehdr->e_machine != ld_targ.t_m.m_machplus)
2893 			return (S_ERROR);
2894 		if ((ehdr->e_flags & ld_targ.t_m.m_flagsplus) == 0)
2895 			return (S_ERROR);
2896 	}
2897 
2898 	if (ofl->ofl_flags & FLG_OF_SHAROBJ)
2899 		ehdr->e_type = ET_DYN;
2900 	else if (ofl->ofl_flags & FLG_OF_RELOBJ)
2901 		ehdr->e_type = ET_REL;
2902 	else
2903 		ehdr->e_type = ET_EXEC;
2904 
2905 	return (1);
2906 }
2907 
2908 /*
2909  * Perform move table expansion.
2910  */
2911 static void
2912 expand_move(Ofl_desc *ofl, Sym_desc *sdp, Move *mvp)
2913 {
2914 	Os_desc		*osp;
2915 	uchar_t		*taddr, *taddr0;
2916 	Sxword		offset;
2917 	Half		cnt;
2918 	uint_t		stride;
2919 
2920 	osp = ofl->ofl_isparexpn->is_osdesc;
2921 	offset = sdp->sd_sym->st_value - osp->os_shdr->sh_addr;
2922 
2923 	taddr0 = taddr = osp->os_outdata->d_buf;
2924 	taddr += offset;
2925 	taddr = taddr + mvp->m_poffset;
2926 
2927 	for (cnt = 0; cnt < mvp->m_repeat; cnt++) {
2928 		/* LINTED */
2929 		DBG_CALL(Dbg_move_expand(ofl->ofl_lml, mvp,
2930 		    (Addr)(taddr - taddr0)));
2931 		stride = (uint_t)mvp->m_stride + 1;
2932 
2933 		/*
2934 		 * Update the target address based upon the move entry size.
2935 		 * This size was validated in ld_process_move().
2936 		 */
2937 		/* LINTED */
2938 		switch (ELF_M_SIZE(mvp->m_info)) {
2939 		case 1:
2940 			/* LINTED */
2941 			*taddr = (uchar_t)mvp->m_value;
2942 			taddr += stride;
2943 			break;
2944 		case 2:
2945 			/* LINTED */
2946 			*((Half *)taddr) = (Half)mvp->m_value;
2947 			taddr += 2 * stride;
2948 			break;
2949 		case 4:
2950 			/* LINTED */
2951 			*((Word *)taddr) = (Word)mvp->m_value;
2952 			taddr += 4 * stride;
2953 			break;
2954 		case 8:
2955 			/* LINTED */
2956 			*((u_longlong_t *)taddr) = mvp->m_value;
2957 			taddr += 8 * stride;
2958 			break;
2959 		}
2960 	}
2961 }
2962 
2963 /*
2964  * Update Move sections.
2965  */
2966 static void
2967 update_move(Ofl_desc *ofl)
2968 {
2969 	Word		ndx = 0;
2970 	ofl_flag_t	flags = ofl->ofl_flags;
2971 	Move		*omvp;
2972 	Aliste		idx1;
2973 	Sym_desc	*sdp;
2974 
2975 	/*
2976 	 * Determine the index of the symbol table that will be referenced by
2977 	 * the Move section.
2978 	 */
2979 	if (OFL_ALLOW_DYNSYM(ofl))
2980 		/* LINTED */
2981 		ndx = (Word) elf_ndxscn(ofl->ofl_osdynsym->os_scn);
2982 	else if (!(flags & FLG_OF_STRIP) || (flags & FLG_OF_RELOBJ))
2983 		/* LINTED */
2984 		ndx = (Word) elf_ndxscn(ofl->ofl_ossymtab->os_scn);
2985 
2986 	/*
2987 	 * Update sh_link of the Move section, and point to the new Move data.
2988 	 */
2989 	if (ofl->ofl_osmove) {
2990 		ofl->ofl_osmove->os_shdr->sh_link = ndx;
2991 		omvp = (Move *)ofl->ofl_osmove->os_outdata->d_buf;
2992 	}
2993 
2994 	/*
2995 	 * Update symbol entry index
2996 	 */
2997 	for (APLIST_TRAVERSE(ofl->ofl_parsyms, idx1, sdp)) {
2998 		Aliste		idx2;
2999 		Mv_desc		*mdp;
3000 
3001 		/*
3002 		 * Expand move table
3003 		 */
3004 		if (sdp->sd_flags & FLG_SY_PAREXPN) {
3005 			const char	*str;
3006 
3007 			if (flags & FLG_OF_STATIC)
3008 				str = MSG_INTL(MSG_PSYM_EXPREASON1);
3009 			else if (ofl->ofl_flags1 & FLG_OF1_NOPARTI)
3010 				str = MSG_INTL(MSG_PSYM_EXPREASON2);
3011 			else
3012 				str = MSG_INTL(MSG_PSYM_EXPREASON3);
3013 
3014 			DBG_CALL(Dbg_move_parexpn(ofl->ofl_lml,
3015 			    sdp->sd_name, str));
3016 
3017 			for (ALIST_TRAVERSE(sdp->sd_move, idx2, mdp)) {
3018 				DBG_CALL(Dbg_move_entry1(ofl->ofl_lml, 0,
3019 				    mdp->md_move, sdp));
3020 				expand_move(ofl, sdp, mdp->md_move);
3021 			}
3022 			continue;
3023 		}
3024 
3025 		/*
3026 		 * Process move table
3027 		 */
3028 		DBG_CALL(Dbg_move_outmove(ofl->ofl_lml, sdp->sd_name));
3029 
3030 		for (ALIST_TRAVERSE(sdp->sd_move, idx2, mdp)) {
3031 			Move	*imvp;
3032 			int	idx = 1;
3033 			Sym	*sym;
3034 
3035 			imvp = mdp->md_move;
3036 			sym = sdp->sd_sym;
3037 
3038 			DBG_CALL(Dbg_move_entry1(ofl->ofl_lml, 1, imvp, sdp));
3039 
3040 			*omvp = *imvp;
3041 			if ((flags & FLG_OF_RELOBJ) == 0) {
3042 				if (ELF_ST_BIND(sym->st_info) == STB_LOCAL) {
3043 					Os_desc	*osp = sdp->sd_isc->is_osdesc;
3044 					Word	ndx = osp->os_identndx;
3045 
3046 					omvp->m_info =
3047 					    /* LINTED */
3048 					    ELF_M_INFO(ndx, imvp->m_info);
3049 
3050 					if (ELF_ST_TYPE(sym->st_info) !=
3051 					    STT_SECTION) {
3052 						omvp->m_poffset =
3053 						    sym->st_value -
3054 						    osp->os_shdr->sh_addr +
3055 						    imvp->m_poffset;
3056 					}
3057 				} else {
3058 					omvp->m_info =
3059 					    /* LINTED */
3060 					    ELF_M_INFO(sdp->sd_symndx,
3061 					    imvp->m_info);
3062 				}
3063 			} else {
3064 				Boolean 	isredloc = FALSE;
3065 
3066 				if ((ELF_ST_BIND(sym->st_info) == STB_LOCAL) &&
3067 				    (ofl->ofl_flags & FLG_OF_REDLSYM))
3068 					isredloc = TRUE;
3069 
3070 				if (isredloc && !(sdp->sd_move)) {
3071 					Os_desc	*osp = sdp->sd_isc->is_osdesc;
3072 					Word	ndx = osp->os_identndx;
3073 
3074 					omvp->m_info =
3075 					    /* LINTED */
3076 					    ELF_M_INFO(ndx, imvp->m_info);
3077 
3078 					omvp->m_poffset += sym->st_value;
3079 				} else {
3080 					if (isredloc)
3081 						DBG_CALL(Dbg_syms_reduce(ofl,
3082 						    DBG_SYM_REDUCE_RETAIN,
3083 						    sdp, idx,
3084 						    ofl->ofl_osmove->os_name));
3085 
3086 					omvp->m_info =
3087 					    /* LINTED */
3088 					    ELF_M_INFO(sdp->sd_symndx,
3089 					    imvp->m_info);
3090 				}
3091 			}
3092 
3093 			DBG_CALL(Dbg_move_entry1(ofl->ofl_lml, 0, omvp, sdp));
3094 			omvp++;
3095 			idx++;
3096 		}
3097 	}
3098 }
3099 
3100 /*
3101  * Scan through the SHT_GROUP output sections.  Update their sh_link/sh_info
3102  * fields as well as the section contents.
3103  */
3104 static uintptr_t
3105 update_ogroup(Ofl_desc *ofl)
3106 {
3107 	Aliste		idx;
3108 	Os_desc		*osp;
3109 	uintptr_t	error = 0;
3110 
3111 	for (APLIST_TRAVERSE(ofl->ofl_osgroups, idx, osp)) {
3112 		Is_desc		*isp;
3113 		Ifl_desc	*ifl;
3114 		Shdr		*shdr = osp->os_shdr;
3115 		Sym_desc	*sdp;
3116 		Xword		i, grpcnt;
3117 		Word		*gdata;
3118 
3119 		/*
3120 		 * Since input GROUP sections always create unique
3121 		 * output GROUP sections - we know there is only one
3122 		 * item on the list.
3123 		 */
3124 		isp = (Is_desc *)osp->os_isdescs->apl_data[0];
3125 
3126 		ifl = isp->is_file;
3127 		sdp = ifl->ifl_oldndx[isp->is_shdr->sh_info];
3128 		shdr->sh_link = (Word)elf_ndxscn(ofl->ofl_ossymtab->os_scn);
3129 		shdr->sh_info = sdp->sd_symndx;
3130 
3131 		/*
3132 		 * Scan through the group data section and update
3133 		 * all of the links to new values.
3134 		 */
3135 		grpcnt = shdr->sh_size / shdr->sh_entsize;
3136 		gdata = (Word *)osp->os_outdata->d_buf;
3137 
3138 		for (i = 1; i < grpcnt; i++) {
3139 			Os_desc	*_osp;
3140 			Is_desc	*_isp = ifl->ifl_isdesc[gdata[i]];
3141 
3142 			/*
3143 			 * If the referenced section didn't make it to the
3144 			 * output file - just zero out the entry.
3145 			 */
3146 			if ((_osp = _isp->is_osdesc) == NULL)
3147 				gdata[i] = 0;
3148 			else
3149 				gdata[i] = (Word)elf_ndxscn(_osp->os_scn);
3150 		}
3151 	}
3152 	return (error);
3153 }
3154 
3155 static void
3156 update_ostrtab(Os_desc *osp, Str_tbl *stp, uint_t extra)
3157 {
3158 	Elf_Data	*data;
3159 
3160 	if (osp == NULL)
3161 		return;
3162 
3163 	data = osp->os_outdata;
3164 	assert(data->d_size == (st_getstrtab_sz(stp) + extra));
3165 	(void) st_setstrbuf(stp, data->d_buf, data->d_size - extra);
3166 	/* If leaving an extra hole at the end, zero it */
3167 	if (extra > 0)
3168 		(void) memset((char *)data->d_buf + data->d_size - extra,
3169 		    0x0, extra);
3170 }
3171 
3172 /*
3173  * Translate the shdr->sh_{link, info} from its input section value to that
3174  * of the corresponding shdr->sh_{link, info} output section value.
3175  */
3176 static Word
3177 translate_link(Ofl_desc *ofl, Os_desc *osp, Word link, const char *msg)
3178 {
3179 	Is_desc		*isp;
3180 	Ifl_desc	*ifl;
3181 
3182 	/*
3183 	 * Don't translate the special section numbers.
3184 	 */
3185 	if (link >= SHN_LORESERVE)
3186 		return (link);
3187 
3188 	/*
3189 	 * Does this output section translate back to an input file.  If not
3190 	 * then there is no translation to do.  In this case we will assume that
3191 	 * if sh_link has a value, it's the right value.
3192 	 */
3193 	isp = (Is_desc *)osp->os_isdescs->apl_data[0];
3194 	if ((ifl = isp->is_file) == NULL)
3195 		return (link);
3196 
3197 	/*
3198 	 * Sanity check to make sure that the sh_{link, info} value
3199 	 * is within range for the input file.
3200 	 */
3201 	if (link >= ifl->ifl_shnum) {
3202 		eprintf(ofl->ofl_lml, ERR_WARNING, msg, ifl->ifl_name,
3203 		    isp->is_name, EC_XWORD(link));
3204 		return (link);
3205 	}
3206 
3207 	/*
3208 	 * Follow the link to the input section.
3209 	 */
3210 	if ((isp = ifl->ifl_isdesc[link]) == NULL)
3211 		return (0);
3212 	if ((osp = isp->is_osdesc) == NULL)
3213 		return (0);
3214 
3215 	/* LINTED */
3216 	return ((Word)elf_ndxscn(osp->os_scn));
3217 }
3218 
3219 /*
3220  * Having created all of the necessary sections, segments, and associated
3221  * headers, fill in the program headers and update any other data in the
3222  * output image.  Some general rules:
3223  *
3224  *  -	If an interpreter is required always generate a PT_PHDR entry as
3225  *	well.  It is this entry that triggers the kernel into passing the
3226  *	interpreter an aux vector instead of just a file descriptor.
3227  *
3228  *  -	When generating an image that will be interpreted (ie. a dynamic
3229  *	executable, a shared object, or a static executable that has been
3230  *	provided with an interpreter - weird, but possible), make the initial
3231  *	loadable segment include both the ehdr and phdr[].  Both of these
3232  *	tables are used by the interpreter therefore it seems more intuitive
3233  *	to explicitly defined them as part of the mapped image rather than
3234  *	relying on page rounding by the interpreter to allow their access.
3235  *
3236  *  -	When generating a static image that does not require an interpreter
3237  *	have the first loadable segment indicate the address of the first
3238  *	.section as the start address (things like /kernel/unix and ufsboot
3239  *	expect this behavior).
3240  */
3241 uintptr_t
3242 ld_update_outfile(Ofl_desc *ofl)
3243 {
3244 	Addr		size, etext, vaddr;
3245 	Sg_desc		*sgp;
3246 	Sg_desc		*dtracesgp = NULL, *capsgp = NULL, *intpsgp = NULL;
3247 	Os_desc		*osp;
3248 	int		phdrndx = 0, segndx = -1, secndx, intppndx, intpsndx;
3249 	int		dtracepndx, dtracesndx, cappndx, capsndx;
3250 	Ehdr		*ehdr = ofl->ofl_nehdr;
3251 	Shdr		*hshdr;
3252 	Phdr		*_phdr = NULL;
3253 	Word		phdrsz = (ehdr->e_phnum * ehdr->e_phentsize), shscnndx;
3254 	ofl_flag_t	flags = ofl->ofl_flags;
3255 	Word		ehdrsz = ehdr->e_ehsize;
3256 	Boolean		nobits;
3257 	Off		offset;
3258 	Aliste		idx1;
3259 
3260 	/*
3261 	 * Initialize the starting address for the first segment.  Executables
3262 	 * have different starting addresses depending upon the target ABI,
3263 	 * where as shared objects have a starting address of 0.  If this is
3264 	 * a 64-bit executable that is being constructed to run in a restricted
3265 	 * address space, use an alternative origin that will provide more free
3266 	 * address space for the the eventual process.
3267 	 */
3268 	if (ofl->ofl_flags & FLG_OF_EXEC) {
3269 #if	defined(_ELF64)
3270 		if (ofl->ofl_sfcap_1 & SF1_SUNW_ADDR32)
3271 			vaddr = ld_targ.t_m.m_segm_aorigin;
3272 		else
3273 #endif
3274 			vaddr = ld_targ.t_m.m_segm_origin;
3275 	} else
3276 		vaddr = 0;
3277 
3278 	/*
3279 	 * Loop through the segment descriptors and pick out what we need.
3280 	 */
3281 	DBG_CALL(Dbg_seg_title(ofl->ofl_lml));
3282 	for (APLIST_TRAVERSE(ofl->ofl_segs, idx1, sgp)) {
3283 		Phdr	*phdr = &(sgp->sg_phdr);
3284 		Xword 	p_align;
3285 		Aliste	idx2;
3286 
3287 		segndx++;
3288 
3289 		/*
3290 		 * If an interpreter is required generate a PT_INTERP and
3291 		 * PT_PHDR program header entry.  The PT_PHDR entry describes
3292 		 * the program header table itself.  This information will be
3293 		 * passed via the aux vector to the interpreter (ld.so.1).
3294 		 * The program header array is actually part of the first
3295 		 * loadable segment (and the PT_PHDR entry is the first entry),
3296 		 * therefore its virtual address isn't known until the first
3297 		 * loadable segment is processed.
3298 		 */
3299 		if (phdr->p_type == PT_PHDR) {
3300 			if (ofl->ofl_osinterp) {
3301 				phdr->p_offset = ehdr->e_phoff;
3302 				phdr->p_filesz = phdr->p_memsz = phdrsz;
3303 
3304 				DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
3305 				ofl->ofl_phdr[phdrndx++] = *phdr;
3306 			}
3307 			continue;
3308 		}
3309 		if (phdr->p_type == PT_INTERP) {
3310 			if (ofl->ofl_osinterp) {
3311 				intpsgp = sgp;
3312 				intpsndx = segndx;
3313 				intppndx = phdrndx++;
3314 			}
3315 			continue;
3316 		}
3317 
3318 		/*
3319 		 * If we are creating a PT_SUNWDTRACE segment, remember where
3320 		 * the program header is.  The header values are assigned after
3321 		 * update_osym() has completed and the symbol table addresses
3322 		 * have been udpated.
3323 		 */
3324 		if (phdr->p_type == PT_SUNWDTRACE) {
3325 			if ((ofl->ofl_dtracesym) &&
3326 			    ((flags & FLG_OF_RELOBJ) == 0)) {
3327 				dtracesgp = sgp;
3328 				dtracesndx = segndx;
3329 				dtracepndx = phdrndx++;
3330 			}
3331 			continue;
3332 		}
3333 
3334 		/*
3335 		 * If a hardware/software capabilities section is required,
3336 		 * generate the PT_SUNWCAP header.  Note, as this comes before
3337 		 * the first loadable segment, we don't yet know its real
3338 		 * virtual address.  This is updated later.
3339 		 */
3340 		if (phdr->p_type == PT_SUNWCAP) {
3341 			if (ofl->ofl_oscap) {
3342 				capsgp = sgp;
3343 				capsndx = segndx;
3344 				cappndx = phdrndx++;
3345 			}
3346 			continue;
3347 		}
3348 
3349 		/*
3350 		 * As the dynamic program header occurs after the loadable
3351 		 * headers in the segment descriptor table, all the address
3352 		 * information for the .dynamic output section will have been
3353 		 * figured out by now.
3354 		 */
3355 		if (phdr->p_type == PT_DYNAMIC) {
3356 			if (OFL_ALLOW_DYNSYM(ofl)) {
3357 				Shdr	*shdr = ofl->ofl_osdynamic->os_shdr;
3358 
3359 				phdr->p_vaddr = shdr->sh_addr;
3360 				phdr->p_offset = shdr->sh_offset;
3361 				phdr->p_filesz = shdr->sh_size;
3362 				phdr->p_flags = ld_targ.t_m.m_dataseg_perm;
3363 
3364 				DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
3365 				ofl->ofl_phdr[phdrndx++] = *phdr;
3366 			}
3367 			continue;
3368 		}
3369 
3370 		/*
3371 		 * As the unwind (.eh_frame_hdr) program header occurs after
3372 		 * the loadable headers in the segment descriptor table, all
3373 		 * the address information for the .eh_frame output section
3374 		 * will have been figured out by now.
3375 		 */
3376 		if (phdr->p_type == PT_SUNW_UNWIND) {
3377 			Shdr	    *shdr;
3378 
3379 			if (ofl->ofl_unwindhdr == NULL)
3380 				continue;
3381 
3382 			shdr = ofl->ofl_unwindhdr->os_shdr;
3383 
3384 			phdr->p_flags = PF_R;
3385 			phdr->p_vaddr = shdr->sh_addr;
3386 			phdr->p_memsz = shdr->sh_size;
3387 			phdr->p_filesz = shdr->sh_size;
3388 			phdr->p_offset = shdr->sh_offset;
3389 			phdr->p_align = shdr->sh_addralign;
3390 			phdr->p_paddr = 0;
3391 			ofl->ofl_phdr[phdrndx++] = *phdr;
3392 			continue;
3393 		}
3394 
3395 		/*
3396 		 * As the TLS program header occurs after the loadable
3397 		 * headers in the segment descriptor table, all the address
3398 		 * information for the .tls output section will have been
3399 		 * figured out by now.
3400 		 */
3401 		if (phdr->p_type == PT_TLS) {
3402 			Os_desc		*tlsosp;
3403 			Shdr		*firstshdr = NULL, *lastfileshdr = NULL;
3404 			Shdr		*lastshdr;
3405 			Aliste		idx;
3406 
3407 			if (ofl->ofl_ostlsseg == NULL)
3408 				continue;
3409 
3410 			/*
3411 			 * Scan through the sections that have contributed TLS.
3412 			 * Remember the first and last so as to determine the
3413 			 * TLS memory size requirement.  Remember the last
3414 			 * non-nobits section to determine the TLS data
3415 			 * contribution, which determines the TLS file size.
3416 			 */
3417 			for (APLIST_TRAVERSE(ofl->ofl_ostlsseg, idx, tlsosp)) {
3418 				Shdr	*tlsshdr = tlsosp->os_shdr;
3419 
3420 				if (firstshdr == NULL)
3421 					firstshdr = tlsshdr;
3422 				if (tlsshdr->sh_type != SHT_NOBITS)
3423 					lastfileshdr = tlsshdr;
3424 				lastshdr = tlsshdr;
3425 			}
3426 
3427 			phdr->p_flags = PF_R | PF_W;
3428 			phdr->p_vaddr = firstshdr->sh_addr;
3429 			phdr->p_offset = firstshdr->sh_offset;
3430 			phdr->p_align = firstshdr->sh_addralign;
3431 
3432 			if (lastfileshdr)
3433 				phdr->p_filesz = lastfileshdr->sh_offset +
3434 				    lastfileshdr->sh_size - phdr->p_offset;
3435 			else
3436 				phdr->p_filesz = 0;
3437 
3438 			phdr->p_memsz = lastshdr->sh_offset +
3439 			    lastshdr->sh_size - phdr->p_offset;
3440 
3441 			DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
3442 			ofl->ofl_phdr[phdrndx] = *phdr;
3443 			ofl->ofl_tlsphdr = &ofl->ofl_phdr[phdrndx++];
3444 			continue;
3445 		}
3446 
3447 		/*
3448 		 * If this is an empty segment declaration, it will occur after
3449 		 * all other loadable segments.  As empty segments can be
3450 		 * defind with fixed addresses, make sure that no loadable
3451 		 * segments overlap.  This might occur as the object evolves
3452 		 * and the loadable segments grow, thus encroaching upon an
3453 		 * existing segment reservation.
3454 		 *
3455 		 * Segments are only created for dynamic objects, thus this
3456 		 * checking can be skipped when building a relocatable object.
3457 		 */
3458 		if (!(flags & FLG_OF_RELOBJ) &&
3459 		    (sgp->sg_flags & FLG_SG_EMPTY)) {
3460 			int	i;
3461 			Addr	v_e;
3462 
3463 			vaddr = phdr->p_vaddr;
3464 			phdr->p_memsz = sgp->sg_length;
3465 			DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
3466 			ofl->ofl_phdr[phdrndx++] = *phdr;
3467 
3468 			if (phdr->p_type != PT_LOAD)
3469 				continue;
3470 
3471 			v_e = vaddr + phdr->p_memsz;
3472 
3473 			/*
3474 			 * Check overlaps
3475 			 */
3476 			for (i = 0; i < phdrndx - 1; i++) {
3477 				Addr 	p_s = (ofl->ofl_phdr[i]).p_vaddr;
3478 				Addr 	p_e;
3479 
3480 				if ((ofl->ofl_phdr[i]).p_type != PT_LOAD)
3481 					continue;
3482 
3483 				p_e = p_s + (ofl->ofl_phdr[i]).p_memsz;
3484 				if (((p_s <= vaddr) && (p_e > vaddr)) ||
3485 				    ((vaddr <= p_s) && (v_e > p_s)))
3486 					eprintf(ofl->ofl_lml, ERR_WARNING,
3487 					    MSG_INTL(MSG_UPD_SEGOVERLAP),
3488 					    ofl->ofl_name, EC_ADDR(p_e),
3489 					    sgp->sg_name, EC_ADDR(vaddr));
3490 			}
3491 			continue;
3492 		}
3493 
3494 		/*
3495 		 * Having processed any of the special program headers any
3496 		 * remaining headers will be built to express individual
3497 		 * segments.  Segments are only built if they have output
3498 		 * section descriptors associated with them (ie. some form of
3499 		 * input section has been matched to this segment).
3500 		 */
3501 		if (sgp->sg_osdescs == NULL)
3502 			continue;
3503 
3504 		/*
3505 		 * Determine the segments offset and size from the section
3506 		 * information provided from elf_update().
3507 		 * Allow for multiple NOBITS sections.
3508 		 */
3509 		osp = sgp->sg_osdescs->apl_data[0];
3510 		hshdr = osp->os_shdr;
3511 
3512 		phdr->p_filesz = 0;
3513 		phdr->p_memsz = 0;
3514 		phdr->p_offset = offset = hshdr->sh_offset;
3515 
3516 		nobits = ((hshdr->sh_type == SHT_NOBITS) &&
3517 		    ((sgp->sg_flags & FLG_SG_PHREQ) == 0));
3518 
3519 		for (APLIST_TRAVERSE(sgp->sg_osdescs, idx2, osp)) {
3520 			Shdr	*shdr = osp->os_shdr;
3521 
3522 			p_align = 0;
3523 			if (shdr->sh_addralign > p_align)
3524 				p_align = shdr->sh_addralign;
3525 
3526 			offset = (Off)S_ROUND(offset, shdr->sh_addralign);
3527 			offset += shdr->sh_size;
3528 
3529 			if (shdr->sh_type != SHT_NOBITS) {
3530 				if (nobits) {
3531 					eprintf(ofl->ofl_lml, ERR_FATAL,
3532 					    MSG_INTL(MSG_UPD_NOBITS));
3533 					return (S_ERROR);
3534 				}
3535 				phdr->p_filesz = offset - phdr->p_offset;
3536 			} else if ((sgp->sg_flags & FLG_SG_PHREQ) == 0)
3537 				nobits = TRUE;
3538 		}
3539 		phdr->p_memsz = offset - hshdr->sh_offset;
3540 
3541 		/*
3542 		 * If this is the first loadable segment of a dynamic object,
3543 		 * or an interpreter has been specified (a static object built
3544 		 * with an interpreter will still be given a PT_HDR entry), then
3545 		 * compensate for the elf header and program header array.  Both
3546 		 * of these are actually part of the loadable segment as they
3547 		 * may be inspected by the interpreter.  Adjust the segments
3548 		 * size and offset accordingly.
3549 		 */
3550 		if ((_phdr == NULL) && (phdr->p_type == PT_LOAD) &&
3551 		    ((ofl->ofl_osinterp) || (flags & FLG_OF_DYNAMIC)) &&
3552 		    (!(ofl->ofl_dtflags_1 & DF_1_NOHDR))) {
3553 			size = (Addr)S_ROUND((phdrsz + ehdrsz),
3554 			    hshdr->sh_addralign);
3555 			phdr->p_offset -= size;
3556 			phdr->p_filesz += size;
3557 			phdr->p_memsz += size;
3558 		}
3559 
3560 		/*
3561 		 * If a segment size symbol is required (specified via a
3562 		 * mapfile) update its value.
3563 		 */
3564 		if (sgp->sg_sizesym != NULL)
3565 			sgp->sg_sizesym->sd_sym->st_value = phdr->p_memsz;
3566 
3567 		/*
3568 		 * If no file content has been assigned to this segment (it
3569 		 * only contains no-bits sections), then reset the offset for
3570 		 * consistency.
3571 		 */
3572 		if (phdr->p_filesz == 0)
3573 			phdr->p_offset = 0;
3574 
3575 		/*
3576 		 * If a virtual address has been specified for this segment
3577 		 * (presumably from a mapfile) use it and make sure the
3578 		 * previous segment does not run into this segment.
3579 		 */
3580 		if (phdr->p_type == PT_LOAD) {
3581 			if ((sgp->sg_flags & FLG_SG_VADDR)) {
3582 				if (_phdr && (vaddr > phdr->p_vaddr) &&
3583 				    (phdr->p_type == PT_LOAD))
3584 					eprintf(ofl->ofl_lml, ERR_WARNING,
3585 					    MSG_INTL(MSG_UPD_SEGOVERLAP),
3586 					    ofl->ofl_name, EC_ADDR(vaddr),
3587 					    sgp->sg_name,
3588 					    EC_ADDR(phdr->p_vaddr));
3589 				vaddr = phdr->p_vaddr;
3590 				phdr->p_align = 0;
3591 			} else {
3592 				vaddr = phdr->p_vaddr =
3593 				    (Addr)S_ROUND(vaddr, phdr->p_align);
3594 			}
3595 		}
3596 
3597 		/*
3598 		 * Adjust the address offset and p_align if needed.
3599 		 */
3600 		if (((sgp->sg_flags & FLG_SG_VADDR) == 0) &&
3601 		    ((ofl->ofl_dtflags_1 & DF_1_NOHDR) == 0)) {
3602 			if (phdr->p_align != 0)
3603 				vaddr += phdr->p_offset % phdr->p_align;
3604 			else
3605 				vaddr += phdr->p_offset;
3606 			phdr->p_vaddr = vaddr;
3607 		}
3608 
3609 		/*
3610 		 * If an interpreter is required set the virtual address of the
3611 		 * PT_PHDR program header now that we know the virtual address
3612 		 * of the loadable segment that contains it.  Update the
3613 		 * PT_SUNWCAP header similarly.
3614 		 */
3615 		if ((_phdr == NULL) && (phdr->p_type == PT_LOAD)) {
3616 			_phdr = phdr;
3617 
3618 			if ((ofl->ofl_dtflags_1 & DF_1_NOHDR) == 0) {
3619 				if (ofl->ofl_osinterp)
3620 					ofl->ofl_phdr[0].p_vaddr =
3621 					    vaddr + ehdrsz;
3622 
3623 				/*
3624 				 * Finally, if we're creating a dynamic object
3625 				 * (or a static object in which an interpreter
3626 				 * is specified) update the vaddr to reflect
3627 				 * the address of the first section within this
3628 				 * segment.
3629 				 */
3630 				if ((ofl->ofl_osinterp) ||
3631 				    (flags & FLG_OF_DYNAMIC))
3632 					vaddr += size;
3633 			} else {
3634 				/*
3635 				 * If the DF_1_NOHDR flag was set, and an
3636 				 * interpreter is being generated, the PT_PHDR
3637 				 * will not be part of any loadable segment.
3638 				 */
3639 				if (ofl->ofl_osinterp) {
3640 					ofl->ofl_phdr[0].p_vaddr = 0;
3641 					ofl->ofl_phdr[0].p_memsz = 0;
3642 					ofl->ofl_phdr[0].p_flags = 0;
3643 				}
3644 			}
3645 		}
3646 
3647 		/*
3648 		 * Ensure the ELF entry point defaults to zero.  Typically, this
3649 		 * value is overridden in update_oehdr() to one of the standard
3650 		 * entry points.  Historically, this default was set to the
3651 		 * address of first executable section, but this has since been
3652 		 * found to be more confusing than it is helpful.
3653 		 */
3654 		ehdr->e_entry = 0;
3655 
3656 		DBG_CALL(Dbg_seg_entry(ofl, segndx, sgp));
3657 
3658 		/*
3659 		 * Traverse the output section descriptors for this segment so
3660 		 * that we can update the section headers addresses.  We've
3661 		 * calculated the virtual address of the initial section within
3662 		 * this segment, so each successive section can be calculated
3663 		 * based on their offsets from each other.
3664 		 */
3665 		secndx = 0;
3666 		hshdr = 0;
3667 		for (APLIST_TRAVERSE(sgp->sg_osdescs, idx2, osp)) {
3668 			Shdr	*shdr = osp->os_shdr;
3669 
3670 			if (shdr->sh_link)
3671 				shdr->sh_link = translate_link(ofl, osp,
3672 				    shdr->sh_link, MSG_INTL(MSG_FIL_INVSHLINK));
3673 
3674 			if (shdr->sh_info && (shdr->sh_flags & SHF_INFO_LINK))
3675 				shdr->sh_info = translate_link(ofl, osp,
3676 				    shdr->sh_info, MSG_INTL(MSG_FIL_INVSHINFO));
3677 
3678 			if (!(flags & FLG_OF_RELOBJ) &&
3679 			    (phdr->p_type == PT_LOAD)) {
3680 				if (hshdr)
3681 					vaddr += (shdr->sh_offset -
3682 					    hshdr->sh_offset);
3683 
3684 				shdr->sh_addr = vaddr;
3685 				hshdr = shdr;
3686 			}
3687 
3688 			DBG_CALL(Dbg_seg_os(ofl, osp, secndx));
3689 			secndx++;
3690 		}
3691 
3692 		/*
3693 		 * Establish the virtual address of the end of the last section
3694 		 * in this segment so that the next segments offset can be
3695 		 * calculated from this.
3696 		 */
3697 		if (hshdr)
3698 			vaddr += hshdr->sh_size;
3699 
3700 		/*
3701 		 * Output sections for this segment complete.  Adjust the
3702 		 * virtual offset for the last sections size, and make sure we
3703 		 * haven't exceeded any maximum segment length specification.
3704 		 */
3705 		if ((sgp->sg_length != 0) && (sgp->sg_length < phdr->p_memsz)) {
3706 			eprintf(ofl->ofl_lml, ERR_FATAL,
3707 			    MSG_INTL(MSG_UPD_LARGSIZE), ofl->ofl_name,
3708 			    sgp->sg_name, EC_XWORD(phdr->p_memsz),
3709 			    EC_XWORD(sgp->sg_length));
3710 			return (S_ERROR);
3711 		}
3712 
3713 		if (phdr->p_type == PT_NOTE) {
3714 			phdr->p_vaddr = 0;
3715 			phdr->p_paddr = 0;
3716 			phdr->p_align = 0;
3717 			phdr->p_memsz = 0;
3718 		}
3719 
3720 		if ((phdr->p_type != PT_NULL) && !(flags & FLG_OF_RELOBJ))
3721 			ofl->ofl_phdr[phdrndx++] = *phdr;
3722 	}
3723 
3724 	/*
3725 	 * Update any new output sections.  When building the initial output
3726 	 * image, a number of sections were created but left uninitialized (eg.
3727 	 * .dynsym, .dynstr, .symtab, .symtab, etc.).  Here we update these
3728 	 * sections with the appropriate data.  Other sections may still be
3729 	 * modified via reloc_process().
3730 	 *
3731 	 * Copy the interpreter name into the .interp section.
3732 	 */
3733 	if (ofl->ofl_interp)
3734 		(void) strcpy((char *)ofl->ofl_osinterp->os_outdata->d_buf,
3735 		    ofl->ofl_interp);
3736 
3737 	/*
3738 	 * Update the .shstrtab, .strtab and .dynstr sections.
3739 	 */
3740 	update_ostrtab(ofl->ofl_osshstrtab, ofl->ofl_shdrsttab, 0);
3741 	update_ostrtab(ofl->ofl_osstrtab, ofl->ofl_strtab, 0);
3742 	update_ostrtab(ofl->ofl_osdynstr, ofl->ofl_dynstrtab, DYNSTR_EXTRA_PAD);
3743 
3744 	/*
3745 	 * Build any output symbol tables, the symbols information is copied
3746 	 * and updated into the new output image.
3747 	 */
3748 	if ((etext = update_osym(ofl)) == (Addr)S_ERROR)
3749 		return (S_ERROR);
3750 
3751 	/*
3752 	 * If we have an PT_INTERP phdr, update it now from the associated
3753 	 * section information.
3754 	 */
3755 	if (intpsgp) {
3756 		Phdr	*phdr = &(intpsgp->sg_phdr);
3757 		Shdr	*shdr = ofl->ofl_osinterp->os_shdr;
3758 
3759 		phdr->p_vaddr = shdr->sh_addr;
3760 		phdr->p_offset = shdr->sh_offset;
3761 		phdr->p_memsz = phdr->p_filesz = shdr->sh_size;
3762 		phdr->p_flags = PF_R;
3763 
3764 		DBG_CALL(Dbg_seg_entry(ofl, intpsndx, intpsgp));
3765 		ofl->ofl_phdr[intppndx] = *phdr;
3766 	}
3767 
3768 	/*
3769 	 * If we have a PT_SUNWDTRACE phdr, update it now with the address of
3770 	 * the symbol.  It's only now been updated via update_sym().
3771 	 */
3772 	if (dtracesgp && ofl->ofl_dtracesym) {
3773 		Phdr		*aphdr, *phdr = &(dtracesgp->sg_phdr);
3774 		Sym_desc	*sdp = ofl->ofl_dtracesym;
3775 
3776 		phdr->p_vaddr = sdp->sd_sym->st_value;
3777 		phdr->p_memsz = sdp->sd_sym->st_size;
3778 
3779 		/*
3780 		 * Take permisions of the segment the symbol is associated with.
3781 		 */
3782 		aphdr = &sdp->sd_isc->is_osdesc->os_sgdesc->sg_phdr;
3783 		assert(aphdr);
3784 		phdr->p_flags = aphdr->p_flags;
3785 
3786 		DBG_CALL(Dbg_seg_entry(ofl, dtracesndx, dtracesgp));
3787 		ofl->ofl_phdr[dtracepndx] = *phdr;
3788 	}
3789 
3790 	/*
3791 	 * If we have a PT_SUNWCAP phdr, update it now from the associated
3792 	 * section information.
3793 	 */
3794 	if (capsgp && ofl->ofl_oscap) {
3795 		Phdr	*phdr = &(capsgp->sg_phdr);
3796 		Shdr	*shdr = ofl->ofl_oscap->os_shdr;
3797 
3798 		phdr->p_vaddr = shdr->sh_addr;
3799 		phdr->p_offset = shdr->sh_offset;
3800 		phdr->p_memsz = phdr->p_filesz = shdr->sh_size;
3801 		phdr->p_flags = PF_R;
3802 
3803 		DBG_CALL(Dbg_seg_entry(ofl, capsndx, capsgp));
3804 		ofl->ofl_phdr[cappndx] = *phdr;
3805 	}
3806 
3807 	/*
3808 	 * Update the GROUP sections.
3809 	 */
3810 	if (update_ogroup(ofl) == S_ERROR)
3811 		return (S_ERROR);
3812 
3813 	/*
3814 	 * Update Move Table.
3815 	 */
3816 	if (ofl->ofl_osmove || ofl->ofl_isparexpn)
3817 		update_move(ofl);
3818 
3819 	/*
3820 	 * Build any output headers, version information, dynamic structure and
3821 	 * syminfo structure.
3822 	 */
3823 	if (update_oehdr(ofl) == S_ERROR)
3824 		return (S_ERROR);
3825 	if (!(flags & FLG_OF_NOVERSEC)) {
3826 		if ((flags & FLG_OF_VERDEF) &&
3827 		    (update_overdef(ofl) == S_ERROR))
3828 			return (S_ERROR);
3829 		if ((flags & FLG_OF_VERNEED) &&
3830 		    (update_overneed(ofl) == S_ERROR))
3831 			return (S_ERROR);
3832 		if ((flags & (FLG_OF_VERNEED | FLG_OF_VERDEF)) &&
3833 		    (update_oversym(ofl) == S_ERROR))
3834 			return (S_ERROR);
3835 	}
3836 	if (flags & FLG_OF_DYNAMIC) {
3837 		if (update_odynamic(ofl) == S_ERROR)
3838 			return (S_ERROR);
3839 		if (ofl->ofl_ossyminfo)
3840 			if (update_osyminfo(ofl) == S_ERROR)
3841 				return (S_ERROR);
3842 	}
3843 
3844 	/*
3845 	 * Sanity test: First and last data byte of a string table
3846 	 * must be NULL.
3847 	 */
3848 	assert((ofl->ofl_osshstrtab == NULL) ||
3849 	    (*((char *)ofl->ofl_osshstrtab->os_outdata->d_buf) == '\0'));
3850 	assert((ofl->ofl_osshstrtab == NULL) ||
3851 	    (*(((char *)ofl->ofl_osshstrtab->os_outdata->d_buf) +
3852 	    ofl->ofl_osshstrtab->os_outdata->d_size - 1) == '\0'));
3853 
3854 	assert((ofl->ofl_osstrtab == NULL) ||
3855 	    (*((char *)ofl->ofl_osstrtab->os_outdata->d_buf) == '\0'));
3856 	assert((ofl->ofl_osstrtab == NULL) ||
3857 	    (*(((char *)ofl->ofl_osstrtab->os_outdata->d_buf) +
3858 	    ofl->ofl_osstrtab->os_outdata->d_size - 1) == '\0'));
3859 
3860 	assert((ofl->ofl_osdynstr == NULL) ||
3861 	    (*((char *)ofl->ofl_osdynstr->os_outdata->d_buf) == '\0'));
3862 	assert((ofl->ofl_osdynstr == NULL) ||
3863 	    (*(((char *)ofl->ofl_osdynstr->os_outdata->d_buf) +
3864 	    ofl->ofl_osdynstr->os_outdata->d_size - DYNSTR_EXTRA_PAD - 1) ==
3865 	    '\0'));
3866 
3867 	/*
3868 	 * Emit Strtab diagnostics.
3869 	 */
3870 	DBG_CALL(Dbg_sec_strtab(ofl->ofl_lml, ofl->ofl_osshstrtab,
3871 	    ofl->ofl_shdrsttab));
3872 	DBG_CALL(Dbg_sec_strtab(ofl->ofl_lml, ofl->ofl_osstrtab,
3873 	    ofl->ofl_strtab));
3874 	DBG_CALL(Dbg_sec_strtab(ofl->ofl_lml, ofl->ofl_osdynstr,
3875 	    ofl->ofl_dynstrtab));
3876 
3877 	/*
3878 	 * Initialize the section headers string table index within the elf
3879 	 * header.
3880 	 */
3881 	/* LINTED */
3882 	if ((shscnndx = elf_ndxscn(ofl->ofl_osshstrtab->os_scn)) <
3883 	    SHN_LORESERVE) {
3884 		ofl->ofl_nehdr->e_shstrndx =
3885 		    /* LINTED */
3886 		    (Half)shscnndx;
3887 	} else {
3888 		/*
3889 		 * If the STRTAB section index doesn't fit into
3890 		 * e_shstrndx, then we store it in 'shdr[0].st_link'.
3891 		 */
3892 		Elf_Scn	*scn;
3893 		Shdr	*shdr0;
3894 
3895 		if ((scn = elf_getscn(ofl->ofl_elf, 0)) == NULL) {
3896 			eprintf(ofl->ofl_lml, ERR_ELF,
3897 			    MSG_INTL(MSG_ELF_GETSCN), ofl->ofl_name);
3898 			return (S_ERROR);
3899 		}
3900 		if ((shdr0 = elf_getshdr(scn)) == NULL) {
3901 			eprintf(ofl->ofl_lml, ERR_ELF,
3902 			    MSG_INTL(MSG_ELF_GETSHDR), ofl->ofl_name);
3903 			return (S_ERROR);
3904 		}
3905 		ofl->ofl_nehdr->e_shstrndx = SHN_XINDEX;
3906 		shdr0->sh_link = shscnndx;
3907 	}
3908 
3909 	return ((uintptr_t)etext);
3910 }
3911