Mercurial > illumos > illumos-gate
annotate usr/src/cmd/sgs/include/sparc/machdep_sparc.h @ 6206:6b0ed502a8e7
PSARC 2008/179 cross link-editor
6671255 link-editor should support cross linking
author | ab196087 |
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date | Tue, 18 Mar 2008 09:17:00 -0700 |
parents | usr/src/cmd/sgs/include/sparc/machdep.h@fa5ab16f3606 |
children | 60e027e61b69 |
rev | line source |
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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 * | |
6206 | 26 * Copyright 2008 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 #pragma ident "%Z%%M% %I% %E% SMI" | |
37 | |
38 #include <link.h> | |
39 #include <sys/machelf.h> | |
40 | |
41 #ifdef __cplusplus | |
42 extern "C" { | |
43 #endif | |
44 | |
45 /* | |
46 * Elf header information. | |
47 */ | |
6206 | 48 #define M_MACH_32 EM_SPARC |
49 #define M_MACH_64 EM_SPARCV9 | |
50 | |
0 | 51 #ifdef _ELF64 |
52 #define M_MACH EM_SPARCV9 | |
53 #define M_CLASS ELFCLASS64 | |
54 #else | |
55 #define M_MACH EM_SPARC | |
56 #define M_CLASS ELFCLASS32 | |
57 #endif | |
58 #define M_MACHPLUS EM_SPARC32PLUS | |
59 #define M_DATA ELFDATA2MSB | |
60 #define M_FLAGSPLUS EF_SPARC_32PLUS | |
61 | |
62 /* | |
63 * Page boundary Macros: truncate to previous page boundary and round to | |
64 * next page boundary (refer to generic macros in ../sgs.h also). | |
65 */ | |
66 #define M_PTRUNC(X) ((X) & ~(syspagsz - 1)) | |
67 #define M_PROUND(X) (((X) + syspagsz - 1) & ~(syspagsz - 1)) | |
68 | |
69 /* | |
70 * Segment boundary macros: truncate to previous segment boundary and round | |
71 * to next page boundary. | |
72 */ | |
73 #ifndef M_SEGSIZE | |
74 #define M_SEGSIZE ELF_SPARC_MAXPGSZ | |
75 #endif | |
76 #define M_STRUNC(X) ((X) & ~(M_SEGSIZE - 1)) | |
77 #define M_SROUND(X) (((X) + M_SEGSIZE - 1) & ~(M_SEGSIZE - 1)) | |
78 | |
79 | |
80 /* | |
81 * TLS static segments must be rounded to the following requirements, | |
82 * due to libthread stack allocation. | |
83 */ | |
84 #if defined(_ELF64) | |
85 #define M_TLSSTATALIGN 0x10 | |
86 #else | |
2647 | 87 #define M_TLSSTATALIGN 0x08 |
0 | 88 #endif |
89 | |
90 | |
91 /* | |
92 * Instruction encodings. | |
93 */ | |
94 #define M_SAVESP64 0x9de3bfc0 /* save %sp, -64, %sp */ | |
95 #define M_CALL 0x40000000 | |
96 #define M_JMPL 0x81c06000 /* jmpl %g1 + simm13, %g0 */ | |
97 #define M_SETHIG0 0x01000000 /* sethi %hi(val), %g0 */ | |
98 #define M_SETHIG1 0x03000000 /* sethi %hi(val), %g1 */ | |
99 #define M_STO7G1IM 0xde206000 /* st %o7,[%g1 + %lo(val)] */ | |
100 #define M_SUBFPSPG1 0x8227800e /* sub %fp,%sp,%g1 */ | |
101 #define M_NOP 0x01000000 /* sethi 0, %o0 (nop) */ | |
102 #define M_BA_A 0x30800000 /* ba,a */ | |
103 #define M_BA_A_PT 0x30480000 /* ba,a %icc, <dst> */ | |
104 #define M_MOVO7TOG1 0x8210000f /* mov %o7, %g1 */ | |
105 #define M_MOVO7TOG5 0x8a10000f /* mov %o7, %g5 */ | |
106 #define M_MOVI7TOG1 0x8210001f /* mov %i7, %g1 */ | |
107 #define M_BA_A_XCC 0x30680000 /* ba,a %xcc */ | |
108 #define M_JMPL_G5G0 0x81c16000 /* jmpl %g5 + 0, %g0 */ | |
109 #define M_XNOR_G5G1 0x82396000 /* xnor %g5, 0, %g1 */ | |
110 | |
111 | |
112 #define M_BIND_ADJ 4 /* adjustment for end of */ | |
113 /* elf_rtbndr() address */ | |
114 | |
115 | |
116 /* | |
117 * Plt and Got information; the first few .got and .plt entries are reserved | |
118 * PLT[0] jump to dynamic linker | |
119 * GOT[0] address of _DYNAMIC | |
120 */ | |
121 #define M_PLT_INSSIZE 4 /* single plt instruction size */ | |
122 #define M_GOT_XDYNAMIC 0 /* got index for _DYNAMIC */ | |
123 #define M_GOT_XNumber 1 /* reserved no. of got entries */ | |
124 | |
125 /* | |
126 * ELF32 bit PLT constants | |
127 */ | |
128 #define M32_PLT_ENTSIZE 12 /* 32bit plt entry size in bytes */ | |
129 | |
130 /* | |
131 * ELF64 bit PLT constants | |
132 */ | |
133 #define M64_PLT_NEARPLTS 0x8000 /* # of NEAR PLTS we can have */ | |
134 #define M64_PLT_ENTSIZE 32 /* plt entry size in bytes */ | |
135 #define M64_PLT_FENTSIZE 24 /* size of far plt is 6 instructions */ | |
136 /* x 4bytes */ | |
137 #define M64_PLT_PSIZE 8 /* size of PLTP pointer */ | |
138 #define M64_PLT_FBLKCNTS 160 /* # of plts in far PLT blocks */ | |
139 #define M64_PLT_FBLOCKSZ (M64_PLT_FBLKCNTS *\ | |
140 M64_PLT_ENTSIZE) /* size of far PLT block */ | |
141 | |
142 | |
143 #ifdef _ELF64 | |
144 #define M_PLT_ENTSIZE M64_PLT_ENTSIZE /* plt entry size in bytes */ | |
145 #define M_PLT_XNumber 4 /* reserved no. of plt entries */ | |
146 #define M_PLT_ALIGN 256 /* alignment of .plt section */ | |
147 #define M_PLT_RESERVSZ (M_PLT_XNumber * \ | |
148 M_PLT_ENTSIZE) /* first 4 plt's reserved */ | |
149 #define M_GOT_ENTSIZE 8 /* got entry size in bytes */ | |
150 #define M_GOT_MAXSMALL 1024 /* maximum no. of small gots */ | |
151 #else /* Elf32 */ | |
152 #define M_PLT_ENTSIZE M32_PLT_ENTSIZE /* plt entry size in bytes */ | |
153 #define M_PLT_XNumber 4 /* reserved no. of plt entries */ | |
154 #define M_PLT_ALIGN M_WORD_ALIGN /* alignment of .plt section */ | |
155 #define M_PLT_RESERVSZ (M_PLT_XNumber * \ | |
156 M_PLT_ENTSIZE) /* first 4 plt's reserved */ | |
157 #define M_GOT_ENTSIZE 4 /* got entry size in bytes */ | |
158 #define M_GOT_MAXSMALL 2048 /* maximum no. of small gots */ | |
159 #endif /* _ELF64 */ | |
160 /* transition flags for got sizing */ | |
161 #define M_GOT_LARGE (Sword)(-M_GOT_MAXSMALL - 1) | |
162 #define M_GOT_SMALL (Sword)(-M_GOT_MAXSMALL - 2) | |
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163 #define M_GOT_MIXED (Sword)(-M_GOT_MAXSMALL - 3) |
0 | 164 |
165 | |
166 /* | |
167 * Other machine dependent entities | |
168 */ | |
169 #ifdef _ELF64 | |
170 #define M_SEGM_ALIGN ELF_SPARCV9_MAXPGSZ | |
171 /* | |
172 * Put 64-bit programs above 4 gigabytes to help insure correctness, | |
173 * so any 64-bit programs that truncate pointers will fault now instead of | |
174 * corrupting itself and dying mysteriously. | |
175 */ | |
176 #define M_SEGM_ORIGIN (Addr)0x100000000ULL /* default first segment offset */ | |
177 #define M_WORD_ALIGN 8 | |
178 #else | |
179 #define M_SEGM_ALIGN ELF_SPARC_MAXPGSZ | |
180 #define M_SEGM_ORIGIN (Addr)0x10000 /* default first segment offset */ | |
181 #define M_WORD_ALIGN 4 | |
182 #endif | |
183 | |
184 /* | |
185 * Make common relocation information transparent to the common code | |
186 */ | |
187 #define M_REL_DT_TYPE DT_RELA /* .dynamic entry */ | |
188 #define M_REL_DT_SIZE DT_RELASZ /* .dynamic entry */ | |
189 #define M_REL_DT_ENT DT_RELAENT /* .dynamic entry */ | |
190 #define M_REL_DT_COUNT DT_RELACOUNT /* .dynamic entry */ | |
191 #define M_REL_SHT_TYPE SHT_RELA /* section header type */ | |
192 #define M_REL_ELF_TYPE ELF_T_RELA /* data buffer type */ | |
193 | |
194 /* | |
195 * Make common relocation types transparent to the common code | |
196 */ | |
197 #define M_R_NONE R_SPARC_NONE | |
198 #define M_R_GLOB_DAT R_SPARC_GLOB_DAT | |
199 #define M_R_COPY R_SPARC_COPY | |
200 #define M_R_RELATIVE R_SPARC_RELATIVE | |
201 #define M_R_JMP_SLOT R_SPARC_JMP_SLOT | |
202 #define M_R_REGISTER R_SPARC_REGISTER | |
203 #define M_R_FPTR R_SPARC_NONE | |
204 #define M_R_NUM R_SPARC_NUM | |
205 | |
206 #ifdef _ELF64 | |
207 #define M_R_ARRAYADDR R_SPARC_64 | |
208 #define M_R_DTPMOD R_SPARC_TLS_DTPMOD64 | |
209 #define M_R_DTPOFF R_SPARC_TLS_DTPOFF64 | |
210 #define M_R_TPOFF R_SPARC_TLS_TPOFF64 | |
211 #else /* _ELF32 */ | |
212 #define M_R_ARRAYADDR R_SPARC_32 | |
213 #define M_R_DTPMOD R_SPARC_TLS_DTPMOD32 | |
214 #define M_R_DTPOFF R_SPARC_TLS_DTPOFF32 | |
215 #define M_R_TPOFF R_SPARC_TLS_TPOFF32 | |
216 #endif /* _ELF64 */ | |
217 | |
218 | |
219 /* | |
220 * Make register symbols transparent to common code | |
221 */ | |
222 #define M_DT_REGISTER DT_SPARC_REGISTER | |
223 | |
224 /* | |
225 * PLTRESERVE is not relevant on sparc | |
226 */ | |
227 #define M_DT_PLTRESERVE 0xffffffff | |
228 | |
229 | |
230 /* | |
231 * Make plt section information transparent to the common code. | |
232 */ | |
233 #define M_PLT_SHF_FLAGS (SHF_ALLOC | SHF_WRITE | SHF_EXECINSTR) | |
234 | |
235 /* | |
236 * Make data segment information transparent to the common code. | |
237 */ | |
238 #define M_DATASEG_PERM (PF_R | PF_W | PF_X) | |
239 | |
240 /* | |
241 * Define a set of identifies for special sections. These allow the sections | |
242 * to be ordered within the output file image. These values should be | |
243 * maintained consistently, where appropriate, in each platform specific header | |
244 * file. | |
245 * | |
246 * o null identifies that this section does not need to be added to the | |
247 * output image (ie. shared object sections or sections we're going to | |
248 * recreate (sym tables, string tables, relocations, etc.)). | |
249 * | |
250 * o any user defined section will be first in the associated segment. | |
251 * | |
252 * o interp and capabilities sections are next, as these are accessed | |
253 * immediately the first page of the image is mapped. | |
254 * | |
255 * o the syminfo, hash, dynsym, dynstr and rel's are grouped together as | |
256 * these will all be accessed first by ld.so.1 to perform relocations. | |
257 * | |
258 * o the got, dynamic, and plt are grouped together as these may also be | |
259 * accessed first by ld.so.1 to perform relocations, fill in DT_DEBUG | |
260 * (executables only), and .plt[0]. | |
261 * | |
262 * o unknown sections (stabs, comments etc.) go at the end. | |
263 * | |
264 * Note that .tlsbss/.bss are given the largest identifiers. This insures that | |
265 * if any unknown sections become associated to the same segment as the .bss, | |
266 * the .bss sections are always the last section in the segment. | |
267 */ | |
268 #define M_ID_NULL 0x00 | |
269 #define M_ID_USER 0x01 | |
270 | |
271 #define M_ID_INTERP 0x02 /* SHF_ALLOC */ | |
272 #define M_ID_CAP 0x03 | |
273 #define M_ID_SYMINFO 0x04 | |
274 #define M_ID_HASH 0x05 | |
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275 #define M_ID_LDYNSYM 0x06 /* always right before DYNSYM */ |
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276 #define M_ID_DYNSYM 0x07 |
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277 #define M_ID_DYNSTR 0x08 |
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278 #define M_ID_VERSION 0x09 |
3492 | 279 #define M_ID_DYNSORT 0x0a |
280 #define M_ID_REL 0x0b | |
281 #define M_ID_TEXT 0x0c /* SHF_ALLOC + SHF_EXECINSTR */ | |
282 #define M_ID_DATA 0x0d | |
0 | 283 |
284 /* M_ID_USER 0x01 dual entry - listed above */ | |
285 #define M_ID_GOTDATA 0x02 /* SHF_ALLOC + SHF_WRITE */ | |
286 #define M_ID_GOT 0x03 | |
287 #define M_ID_PLT 0x04 | |
288 #define M_ID_DYNAMIC 0x05 | |
289 #define M_ID_ARRAY 0x06 | |
290 | |
291 #define M_ID_UNKNOWN 0xfc /* just before TLS */ | |
292 | |
293 #define M_ID_TLS 0xfd /* just before bss */ | |
294 #define M_ID_TLSBSS 0xfe | |
295 #define M_ID_BSS 0xff | |
296 | |
297 #define M_ID_SYMTAB_NDX 0x02 /* ! SHF_ALLOC */ | |
298 #define M_ID_SYMTAB 0x03 | |
299 #define M_ID_STRTAB 0x04 | |
300 #define M_ID_DYNSYM_NDX 0x05 | |
301 #define M_ID_NOTE 0x06 | |
302 | |
6206 | 303 |
0 | 304 #ifdef __cplusplus |
305 } | |
306 #endif | |
307 | |
6206 | 308 #endif /* _MACHDEP_SPARC_H */ |