Mercurial > illumos > illumos-gate
annotate usr/src/cmd/sgs/include/sparc/machdep_sparc.h @ 9085:ff7eb0bace56
6813909 generalize eh_frame support to non-amd64 platforms
| author | Ali Bahrami <Ali.Bahrami@Sun.COM> |
|---|---|
| date | Wed, 18 Mar 2009 13:28:28 -0600 |
| parents | 0867fc633d66 |
| children | 47013accbd9c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * CDDL HEADER START | |
| 3 * | |
| 4 * The contents of this file are subject to the terms of the | |
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5 * Common Development and Distribution License (the "License"). |
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6 * You may not use this file except in compliance with the License. |
| 0 | 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 */ | |
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21 |
| 0 | 22 /* |
| 23 * Copyright (c) 1988 AT&T | |
| 24 * All Rights Reserved | |
| 25 * | |
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26 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
| 0 | 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 | |
| 6206 | 33 #ifndef _MACHDEP_SPARC_H |
| 34 #define _MACHDEP_SPARC_H | |
| 0 | 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 */ | |
| 6206 | 46 #define M_MACH_32 EM_SPARC |
| 47 #define M_MACH_64 EM_SPARCV9 | |
| 48 | |
| 0 | 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 | |
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77 /* |
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78 * Relocation type macro. |
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79 */ |
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80 #define M_RELOC Rela |
| 0 | 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 | |
| 2647 | 89 #define M_TLSSTATALIGN 0x08 |
| 0 | 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 | |
| 117 /* | |
| 118 * Plt and Got information; the first few .got and .plt entries are reserved | |
| 119 * PLT[0] jump to dynamic linker | |
| 120 * GOT[0] address of _DYNAMIC | |
| 121 */ | |
| 122 #define M_PLT_INSSIZE 4 /* single plt instruction size */ | |
| 123 #define M_GOT_XDYNAMIC 0 /* got index for _DYNAMIC */ | |
| 124 #define M_GOT_XNumber 1 /* reserved no. of got entries */ | |
| 125 | |
| 126 /* | |
| 127 * ELF32 bit PLT constants | |
| 128 */ | |
| 129 #define M32_PLT_ENTSIZE 12 /* 32bit plt entry size in bytes */ | |
| 130 | |
| 131 /* | |
| 132 * ELF64 bit PLT constants | |
| 133 */ | |
| 134 #define M64_PLT_NEARPLTS 0x8000 /* # of NEAR PLTS we can have */ | |
| 135 #define M64_PLT_ENTSIZE 32 /* plt entry size in bytes */ | |
| 136 #define M64_PLT_FENTSIZE 24 /* size of far plt is 6 instructions */ | |
| 137 /* x 4bytes */ | |
| 138 #define M64_PLT_PSIZE 8 /* size of PLTP pointer */ | |
| 139 #define M64_PLT_FBLKCNTS 160 /* # of plts in far PLT blocks */ | |
| 140 #define M64_PLT_FBLOCKSZ (M64_PLT_FBLKCNTS *\ | |
| 141 M64_PLT_ENTSIZE) /* size of far PLT block */ | |
| 142 | |
| 143 | |
| 144 #ifdef _ELF64 | |
| 145 #define M_PLT_ENTSIZE M64_PLT_ENTSIZE /* plt entry size in bytes */ | |
| 146 #define M_PLT_XNumber 4 /* reserved no. of plt entries */ | |
| 147 #define M_PLT_ALIGN 256 /* alignment of .plt section */ | |
| 148 #define M_PLT_RESERVSZ (M_PLT_XNumber * \ | |
| 149 M_PLT_ENTSIZE) /* first 4 plt's reserved */ | |
| 150 #define M_GOT_ENTSIZE 8 /* got entry size in bytes */ | |
| 151 #define M_GOT_MAXSMALL 1024 /* maximum no. of small gots */ | |
| 152 #else /* Elf32 */ | |
| 153 #define M_PLT_ENTSIZE M32_PLT_ENTSIZE /* plt entry size in bytes */ | |
| 154 #define M_PLT_XNumber 4 /* reserved no. of plt entries */ | |
| 155 #define M_PLT_ALIGN M_WORD_ALIGN /* alignment of .plt section */ | |
| 156 #define M_PLT_RESERVSZ (M_PLT_XNumber * \ | |
| 157 M_PLT_ENTSIZE) /* first 4 plt's reserved */ | |
| 158 #define M_GOT_ENTSIZE 4 /* got entry size in bytes */ | |
| 159 #define M_GOT_MAXSMALL 2048 /* maximum no. of small gots */ | |
| 160 #endif /* _ELF64 */ | |
| 161 /* transition flags for got sizing */ | |
| 162 #define M_GOT_LARGE (Sword)(-M_GOT_MAXSMALL - 1) | |
| 163 #define M_GOT_SMALL (Sword)(-M_GOT_MAXSMALL - 2) | |
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164 #define M_GOT_MIXED (Sword)(-M_GOT_MAXSMALL - 3) |
| 0 | 165 |
| 166 | |
| 167 /* | |
| 168 * Other machine dependent entities | |
| 169 */ | |
| 170 #ifdef _ELF64 | |
| 171 #define M_SEGM_ALIGN ELF_SPARCV9_MAXPGSZ | |
| 172 /* | |
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173 * Put default 64-bit programs above 4 gigabytes to help insure correctness, so |
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174 * that any 64-bit programs that truncate pointers will fault now instead of |
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175 * corrupting itself and dying mysteriously. 64-bit programs can also be |
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176 * restricted to a 32-bit address space (SF1_SUNW_ADDR32), and these programs |
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177 * provide an alternative origin. |
| 0 | 178 */ |
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179 #define M_SEGM_ORIGIN (Addr)0x100000000ULL /* default 1st segment origin */ |
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180 #define M_SEGM_AORIGIN (Addr)0x100000ULL /* alternative 1st segment */ |
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181 /* origin */ |
| 0 | 182 #define M_WORD_ALIGN 8 |
| 183 #else | |
| 184 #define M_SEGM_ALIGN ELF_SPARC_MAXPGSZ | |
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185 #define M_SEGM_ORIGIN (Addr)0x10000 /* default 1st segment origin */ |
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186 #define M_SEGM_AORIGIN M_SEGM_ORIGIN /* alternative 1st segment */ |
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187 /* origin */ |
| 0 | 188 #define M_WORD_ALIGN 4 |
| 189 #endif | |
| 190 | |
| 191 /* | |
| 192 * Make common relocation information transparent to the common code | |
| 193 */ | |
| 194 #define M_REL_DT_TYPE DT_RELA /* .dynamic entry */ | |
| 195 #define M_REL_DT_SIZE DT_RELASZ /* .dynamic entry */ | |
| 196 #define M_REL_DT_ENT DT_RELAENT /* .dynamic entry */ | |
| 197 #define M_REL_DT_COUNT DT_RELACOUNT /* .dynamic entry */ | |
| 198 #define M_REL_SHT_TYPE SHT_RELA /* section header type */ | |
| 199 #define M_REL_ELF_TYPE ELF_T_RELA /* data buffer type */ | |
| 200 | |
| 201 /* | |
| 202 * Make common relocation types transparent to the common code | |
| 203 */ | |
| 204 #define M_R_NONE R_SPARC_NONE | |
| 205 #define M_R_GLOB_DAT R_SPARC_GLOB_DAT | |
| 206 #define M_R_COPY R_SPARC_COPY | |
| 207 #define M_R_RELATIVE R_SPARC_RELATIVE | |
| 208 #define M_R_JMP_SLOT R_SPARC_JMP_SLOT | |
| 209 #define M_R_REGISTER R_SPARC_REGISTER | |
| 210 #define M_R_FPTR R_SPARC_NONE | |
| 211 #define M_R_NUM R_SPARC_NUM | |
| 212 | |
| 213 #ifdef _ELF64 | |
| 214 #define M_R_ARRAYADDR R_SPARC_64 | |
| 215 #define M_R_DTPMOD R_SPARC_TLS_DTPMOD64 | |
| 216 #define M_R_DTPOFF R_SPARC_TLS_DTPOFF64 | |
| 217 #define M_R_TPOFF R_SPARC_TLS_TPOFF64 | |
| 218 #else /* _ELF32 */ | |
| 219 #define M_R_ARRAYADDR R_SPARC_32 | |
| 220 #define M_R_DTPMOD R_SPARC_TLS_DTPMOD32 | |
| 221 #define M_R_DTPOFF R_SPARC_TLS_DTPOFF32 | |
| 222 #define M_R_TPOFF R_SPARC_TLS_TPOFF32 | |
| 223 #endif /* _ELF64 */ | |
| 224 | |
| 225 | |
| 226 /* | |
| 227 * Make register symbols transparent to common code | |
| 228 */ | |
| 229 #define M_DT_REGISTER DT_SPARC_REGISTER | |
| 230 | |
| 231 /* | |
| 232 * Make plt section information transparent to the common code. | |
| 233 */ | |
| 234 #define M_PLT_SHF_FLAGS (SHF_ALLOC | SHF_WRITE | SHF_EXECINSTR) | |
| 235 | |
| 236 /* | |
| 237 * Make data segment information transparent to the common code. | |
| 238 */ | |
| 239 #define M_DATASEG_PERM (PF_R | PF_W | PF_X) | |
| 240 | |
| 241 /* | |
| 242 * Define a set of identifies for special sections. These allow the sections | |
| 243 * to be ordered within the output file image. These values should be | |
| 244 * maintained consistently, where appropriate, in each platform specific header | |
| 245 * file. | |
| 246 * | |
| 247 * o null identifies that this section does not need to be added to the | |
| 248 * output image (ie. shared object sections or sections we're going to | |
| 249 * recreate (sym tables, string tables, relocations, etc.)). | |
| 250 * | |
| 251 * o any user defined section will be first in the associated segment. | |
| 252 * | |
| 253 * o interp and capabilities sections are next, as these are accessed | |
| 254 * immediately the first page of the image is mapped. | |
| 255 * | |
| 256 * o the syminfo, hash, dynsym, dynstr and rel's are grouped together as | |
| 257 * these will all be accessed first by ld.so.1 to perform relocations. | |
| 258 * | |
| 259 * o the got, dynamic, and plt are grouped together as these may also be | |
| 260 * accessed first by ld.so.1 to perform relocations, fill in DT_DEBUG | |
| 261 * (executables only), and .plt[0]. | |
| 262 * | |
| 263 * o unknown sections (stabs, comments etc.) go at the end. | |
| 264 * | |
| 265 * Note that .tlsbss/.bss are given the largest identifiers. This insures that | |
| 266 * if any unknown sections become associated to the same segment as the .bss, | |
| 267 * the .bss sections are always the last section in the segment. | |
| 268 */ | |
| 269 #define M_ID_NULL 0x00 | |
| 270 #define M_ID_USER 0x01 | |
| 271 | |
| 272 #define M_ID_INTERP 0x02 /* SHF_ALLOC */ | |
| 273 #define M_ID_CAP 0x03 | |
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274 #define M_ID_UNWINDHDR 0x06 |
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275 #define M_ID_UNWIND 0x07 |
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276 |
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277 #define M_ID_SYMINFO 0x08 |
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278 #define M_ID_HASH 0x09 |
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279 #define M_ID_LDYNSYM 0x0a /* always right before DYNSYM */ |
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280 #define M_ID_DYNSYM 0x0b |
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281 #define M_ID_DYNSTR 0x0c |
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282 #define M_ID_VERSION 0x0d |
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283 #define M_ID_DYNSORT 0x0e |
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284 #define M_ID_REL 0x0f |
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285 #define M_ID_TEXT 0x10 /* SHF_ALLOC + SHF_EXECINSTR */ |
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286 #define M_ID_DATA 0x20 |
| 0 | 287 |
| 288 /* M_ID_USER 0x01 dual entry - listed above */ | |
| 289 #define M_ID_GOTDATA 0x02 /* SHF_ALLOC + SHF_WRITE */ | |
| 290 #define M_ID_GOT 0x03 | |
| 291 #define M_ID_PLT 0x04 | |
| 292 #define M_ID_DYNAMIC 0x05 | |
| 293 #define M_ID_ARRAY 0x06 | |
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294 /* M_ID_UNWIND 0x07 dual entry - listed above */ |
| 0 | 295 |
| 296 #define M_ID_UNKNOWN 0xfc /* just before TLS */ | |
| 297 | |
| 298 #define M_ID_TLS 0xfd /* just before bss */ | |
| 299 #define M_ID_TLSBSS 0xfe | |
| 300 #define M_ID_BSS 0xff | |
| 301 | |
| 302 #define M_ID_SYMTAB_NDX 0x02 /* ! SHF_ALLOC */ | |
| 303 #define M_ID_SYMTAB 0x03 | |
| 304 #define M_ID_STRTAB 0x04 | |
| 305 #define M_ID_DYNSYM_NDX 0x05 | |
| 306 #define M_ID_NOTE 0x06 | |
| 307 | |
| 6206 | 308 |
| 0 | 309 #ifdef __cplusplus |
| 310 } | |
| 311 #endif | |
| 312 | |
| 6206 | 313 #endif /* _MACHDEP_SPARC_H */ |