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 2010 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 * 29 * Global include file for all sgs SPARC machine dependent macros, constants 30 * and declarations. 31 */ 32 33 #ifndef _MACHDEP_SPARC_H 34 #define _MACHDEP_SPARC_H 35 36 #include <link.h> 37 #include <sys/machelf.h> 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 /* 44 * Elf header information. 45 */ 46 #define M_MACH_32 EM_SPARC 47 #define M_MACH_64 EM_SPARCV9 48 49 #ifdef _ELF64 50 #define M_MACH EM_SPARCV9 51 #define M_CLASS ELFCLASS64 52 #else 53 #define M_MACH EM_SPARC 54 #define M_CLASS ELFCLASS32 55 #endif 56 #define M_MACHPLUS EM_SPARC32PLUS 57 #define M_DATA ELFDATA2MSB 58 #define M_FLAGSPLUS EF_SPARC_32PLUS 59 60 /* 61 * Page boundary Macros: truncate to previous page boundary and round to 62 * next page boundary (refer to generic macros in ../sgs.h also). 63 */ 64 #define M_PTRUNC(X) ((X) & ~(syspagsz - 1)) 65 #define M_PROUND(X) (((X) + syspagsz - 1) & ~(syspagsz - 1)) 66 67 /* 68 * Segment boundary macros: truncate to previous segment boundary and round 69 * to next page boundary. 70 */ 71 #ifndef M_SEGSIZE 72 #define M_SEGSIZE ELF_SPARC_MAXPGSZ 73 #endif 74 #define M_STRUNC(X) ((X) & ~(M_SEGSIZE - 1)) 75 #define M_SROUND(X) (((X) + M_SEGSIZE - 1) & ~(M_SEGSIZE - 1)) 76 77 /* 78 * Relocation type macro. 79 */ 80 #define M_RELOC Rela 81 82 /* 83 * TLS static segments must be rounded to the following requirements, 84 * due to libthread stack allocation. 85 */ 86 #if defined(_ELF64) 87 #define M_TLSSTATALIGN 0x10 88 #else 89 #define M_TLSSTATALIGN 0x08 90 #endif 91 92 /* 93 * Instruction encodings. 94 */ 95 #define M_SAVESP64 0x9de3bfc0 /* save %sp, -64, %sp */ 96 #define M_CALL 0x40000000 97 #define M_JMPL 0x81c06000 /* jmpl %g1 + simm13, %g0 */ 98 #define M_SETHIG0 0x01000000 /* sethi %hi(val), %g0 */ 99 #define M_SETHIG1 0x03000000 /* sethi %hi(val), %g1 */ 100 #define M_STO7G1IM 0xde206000 /* st %o7,[%g1 + %lo(val)] */ 101 #define M_SUBFPSPG1 0x8227800e /* sub %fp,%sp,%g1 */ 102 #define M_NOP 0x01000000 /* sethi 0, %o0 (nop) */ 103 #define M_BA_A 0x30800000 /* ba,a */ 104 #define M_BA_A_PT 0x30480000 /* ba,a %icc, <dst> */ 105 #define M_MOVO7TOG1 0x8210000f /* mov %o7, %g1 */ 106 #define M_MOVO7TOG5 0x8a10000f /* mov %o7, %g5 */ 107 #define M_MOVI7TOG1 0x8210001f /* mov %i7, %g1 */ 108 #define M_BA_A_XCC 0x30680000 /* ba,a %xcc */ 109 #define M_JMPL_G5G0 0x81c16000 /* jmpl %g5 + 0, %g0 */ 110 #define M_XNOR_G5G1 0x82396000 /* xnor %g5, 0, %g1 */ 111 112 113 #define M_BIND_ADJ 4 /* adjustment for end of */ 114 /* elf_rtbndr() address */ 115 116 /* transition flags for got sizing */ 117 #define M_GOT_LARGE (Sword)(-M_GOT_MAXSMALL - 1) 118 #define M_GOT_SMALL (Sword)(-M_GOT_MAXSMALL - 2) 119 #define M_GOT_MIXED (Sword)(-M_GOT_MAXSMALL - 3) 120 121 /* 122 * Other machine dependent entities 123 */ 124 #ifdef _ELF64 125 #define M_SEGM_ALIGN ELF_SPARCV9_MAXPGSZ 126 /* 127 * Put default 64-bit programs above 4 gigabytes to help insure correctness, so 128 * that any 64-bit programs that truncate pointers will fault now instead of 129 * corrupting itself and dying mysteriously. 64-bit programs can also be 130 * restricted to a 32-bit address space (SF1_SUNW_ADDR32), and these programs 131 * provide an alternative origin. 132 */ 133 #define M_SEGM_ORIGIN (Addr)0x100000000ULL /* default 1st segment origin */ 134 #define M_SEGM_AORIGIN (Addr)0x100000ULL /* alternative 1st segment */ 135 /* origin */ 136 #else 137 #define M_SEGM_ALIGN ELF_SPARC_MAXPGSZ 138 #define M_SEGM_ORIGIN (Addr)0x10000 /* default 1st segment origin */ 139 #define M_SEGM_AORIGIN M_SEGM_ORIGIN /* alternative 1st segment */ 140 /* origin */ 141 #endif 142 143 /* 144 * Make common relocation information transparent to the common code 145 */ 146 #define M_REL_DT_TYPE DT_RELA /* .dynamic entry */ 147 #define M_REL_DT_SIZE DT_RELASZ /* .dynamic entry */ 148 #define M_REL_DT_ENT DT_RELAENT /* .dynamic entry */ 149 #define M_REL_DT_COUNT DT_RELACOUNT /* .dynamic entry */ 150 #define M_REL_SHT_TYPE SHT_RELA /* section header type */ 151 #define M_REL_ELF_TYPE ELF_T_RELA /* data buffer type */ 152 153 /* 154 * Make common relocation types transparent to the common code 155 */ 156 #define M_R_NONE R_SPARC_NONE 157 #define M_R_GLOB_DAT R_SPARC_GLOB_DAT 158 #define M_R_COPY R_SPARC_COPY 159 #define M_R_RELATIVE R_SPARC_RELATIVE 160 #define M_R_JMP_SLOT R_SPARC_JMP_SLOT 161 #define M_R_REGISTER R_SPARC_REGISTER 162 #define M_R_FPTR R_SPARC_NONE 163 #define M_R_NUM R_SPARC_NUM 164 165 #ifdef _ELF64 166 #define M_R_ARRAYADDR R_SPARC_64 167 #define M_R_DTPMOD R_SPARC_TLS_DTPMOD64 168 #define M_R_DTPOFF R_SPARC_TLS_DTPOFF64 169 #define M_R_TPOFF R_SPARC_TLS_TPOFF64 170 #else /* _ELF32 */ 171 #define M_R_ARRAYADDR R_SPARC_32 172 #define M_R_DTPMOD R_SPARC_TLS_DTPMOD32 173 #define M_R_DTPOFF R_SPARC_TLS_DTPOFF32 174 #define M_R_TPOFF R_SPARC_TLS_TPOFF32 175 #endif /* _ELF64 */ 176 177 178 /* 179 * Make register symbols transparent to common code 180 */ 181 #define M_DT_REGISTER DT_SPARC_REGISTER 182 183 /* 184 * Make plt section information transparent to the common code. 185 */ 186 #define M_PLT_SHF_FLAGS (SHF_ALLOC | SHF_WRITE | SHF_EXECINSTR) 187 188 /* 189 * Make default data segment and stack flags transparent to the common code. 190 */ 191 #define M_DATASEG_PERM (PF_R | PF_W | PF_X) 192 #ifdef _ELF64 193 #define M_STACK_PERM (PF_R | PF_W) 194 #else 195 #define M_STACK_PERM (PF_R | PF_W | PF_X) 196 #endif 197 198 199 /* 200 * Define a set of identifies for special sections. These allow the sections 201 * to be ordered within the output file image. These values should be 202 * maintained consistently, where appropriate, in each platform specific header 203 * file. 204 * 205 * o null identifies that this section does not need to be added to the 206 * output image (ie. shared object sections or sections we're going to 207 * recreate (sym tables, string tables, relocations, etc.)). 208 * 209 * o any user defined section will be first in the associated segment. 210 * 211 * o interp and capabilities sections are next, as these are accessed 212 * immediately the first page of the image is mapped. 213 * 214 * o the syminfo, hash, dynsym, dynstr and rel's are grouped together as 215 * these will all be accessed first by ld.so.1 to perform relocations. 216 * 217 * o the got, dynamic, and plt are grouped together as these may also be 218 * accessed first by ld.so.1 to perform relocations, fill in DT_DEBUG 219 * (executables only), and .plt[0]. 220 * 221 * o unknown sections (stabs, comments etc.) go at the end. 222 * 223 * Note that .tlsbss/.bss are given the largest identifiers. This insures that 224 * if any unknown sections become associated to the same segment as the .bss, 225 * the .bss sections are always the last section in the segment. 226 */ 227 #define M_ID_NULL 0x00 228 #define M_ID_USER 0x01 229 230 #define M_ID_INTERP 0x02 /* SHF_ALLOC */ 231 #define M_ID_CAP 0x03 232 233 #define M_ID_UNWINDHDR 0x06 234 #define M_ID_UNWIND 0x07 235 #define M_ID_CAPINFO 0x08 236 #define M_ID_CAPCHAIN 0x09 237 #define M_ID_SYMINFO 0x0a 238 #define M_ID_HASH 0x0b 239 #define M_ID_LDYNSYM 0x0c /* always right before DYNSYM */ 240 #define M_ID_DYNSYM 0x0d 241 #define M_ID_DYNSTR 0x0e 242 #define M_ID_VERSION 0x0f 243 #define M_ID_DYNSORT 0x10 244 #define M_ID_REL 0x11 245 #define M_ID_TEXT 0x12 /* SHF_ALLOC + SHF_EXECINSTR */ 246 #define M_ID_DATA 0x20 247 248 /* M_ID_USER 0x01 dual entry - listed above */ 249 #define M_ID_GOTDATA 0x02 /* SHF_ALLOC + SHF_WRITE */ 250 #define M_ID_GOT 0x03 251 #define M_ID_PLT 0x04 252 #define M_ID_DYNAMIC 0x05 253 #define M_ID_ARRAY 0x06 254 /* M_ID_UNWIND 0x07 dual entry - listed above */ 255 256 #define M_ID_UNKNOWN 0xfc /* just before TLS */ 257 258 #define M_ID_TLS 0xfd /* just before bss */ 259 #define M_ID_TLSBSS 0xfe 260 #define M_ID_BSS 0xff 261 262 #define M_ID_SYMTAB_NDX 0x02 /* ! SHF_ALLOC */ 263 #define M_ID_SYMTAB 0x03 264 #define M_ID_STRTAB 0x04 265 #define M_ID_DYNSYM_NDX 0x05 266 #define M_ID_NOTE 0x06 267 268 269 #ifdef __cplusplus 270 } 271 #endif 272 273 #endif /* _MACHDEP_SPARC_H */ 274