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gerrit-public.fairphone.software / platform / external / elfutils / b08d5a8fb42f4586d756068065186b5af7e48dad / . / src / xelf.h
blob: ab36e00253d08829a13b563a18ec4e6d81827508 [file] [log] [blame]
Ulrich Drepperb08d5a82005-07-26 05:00:05 +0000[diff] [blame^]1/* Macros to enable writing native and generic ELF access code.
2 Copyright (C) 2003 Red Hat, Inc.
3 Written by Ulrich Drepper <drepper@redhat.com>, 2003.
4
5 This program is Open Source software; you can redistribute it and/or
6 modify it under the terms of the Open Software License version 1.0 as
7 published by the Open Source Initiative.
8
9 You should have received a copy of the Open Software License along
10 with this program; if not, you may obtain a copy of the Open Software
11 License version 1.0 from http://www.opensource.org/licenses/osl.php or
12 by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
13 3001 King Ranch Road, Ukiah, CA 95482. */
14
15#ifdef HAVE_CONFIG_H
16# include <config.h>
17#endif
18
19#include <libebl.h>
20
21
22/* By default the linker is handling all architectures. But it can
23 be configured to be a native-only linker. */
24#if NATIVE_ELF == 32
25/* 32-bit only. */
26# define XElf_Ehdr Elf32_Ehdr
27# define XElf_Shdr Elf32_Shdr
28# define XElf_Off Elf32_Off
29# define XElf_Addr Elf32_Addr
30# define XElf_Half Elf32_Half
31# define XElf_Word Elf32_Word
32# define XElf_Xword Elf32_Word
33# define XElf_Sxword Elf32_Sword
34# define XElf_Versym Elf32_Versym
35# define XElf_Sym Elf32_Sym
36# define XElf_Rel Elf32_Rel
37# define XElf_Rela Elf32_Rela
38
39# define XElf_Ehdr_vardef(name) Elf32_Ehdr *name
40# define xelf_getehdr(elf, name) name = elf32_getehdr (elf)
41# define xelf_getehdr_copy(elf, name, copy) \
42 (copy) = *(name = elf32_getehdr (elf))
43# define xelf_newehdr(elf, klass) elf32_newehdr (elf)
44# define xelf_update_ehdr(elf, ehdr) \
45 /* nothing */ ((void) (elf), (void) (ehdr), 1)
46
47# define xelf_getclass(elf) ELFCLASS32
48
49# define XElf_Phdr_vardef(name) Elf32_Phdr *name
50# define xelf_newphdr(elf, n) elf32_newphdr (elf, n)
51# define xelf_getphdr(elf, idx, name) name = elf32_getphdr (elf) + idx
52# define xelf_getphdr_ptr(elf, idx, name) name = elf32_getphdr (elf) + idx
53# define xelf_update_phdr(elf, idx, phdr) \
54 /* nothing */ ((void) (elf), (void) (idx), (void) (phdr), 1)
55
56# define XElf_Shdr_vardef(name) Elf32_Shdr *name
57# define xelf_getshdr(scn, name) name = elf32_getshdr (scn)
58# define xelf_getshdr_copy(scn, name, copy) \
59 (copy) = *(name = elf32_getshdr (scn))
60# define xelf_update_shdr(scn, shdr) \
61 /* nothing */ ((void) (scn), (void) (shdr), 1)
62
63# define XElf_Sym_vardef(name) Elf32_Sym *name
64# define xelf_getsym(data, idx, name) \
65 name = &((Elf32_Sym *) (data)->d_buf)[idx]
66# define xelf_getsym_ptr(data, idx, name) \
67 name = &((Elf32_Sym *) (data)->d_buf)[idx]
68# define xelf_getsymshndx(data, ndxdata, idx, name1, name2) \
69 (name1 = &((Elf32_Sym *) ((data)->d_buf))[idx]); \
70 name2 = (unlikely ((ndxdata) != NULL) \
71 ? ((Elf32_Word *) ((ndxdata)->d_buf))[idx] : 0)
72# define xelf_update_sym(data, idx, sym) \
73 /* nothing */ ((void) (data), (void) (idx), (void) (sym), 1)
74# define xelf_update_symshndx(data, ndxdata, idx, name1, name2, datachanged) \
75 if (datachanged) \
76 ((Elf32_Sym *) ((data)->d_buf))[idx] = *name1; \
77 if (unlikely (ndxdata != NULL)) \
78 ((Elf32_Word *) ((ndxdata)->d_buf))[idx] = name2
79
80# define XElf_Versym_vardef(name) Elf32_Versym name
81# define xelf_getversym_copy(data, idx, name) \
82 (name = ((Elf32_Versym *) ((data)->d_buf))[idx], &name)
83
84# define XElf_Dyn_vardef(name) Elf32_Dyn *name
85# define xelf_getdyn(data, idx, name) \
86 name = &((Elf32_Dyn *) ((data)->d_buf))[idx]
87# define xelf_getdyn_ptr(data, idx, name) \
88 name = &((Elf32_Dyn *) ((data)->d_buf))[idx]
89# define xelf_update_dyn(data, idx, name) \
90 /* nothing */ ((void) (data), (void) (idx), (void) (name), 1)
91
92# define XElf_Rel_vardef(name) Elf32_Rel *name
93# define xelf_getrel(data, idx, name) \
94 name = &((Elf32_Rel *) ((data)->d_buf))[idx]
95# define xelf_getrel_ptr(data, idx, name) \
96 name = &((Elf32_Rel *) ((data)->d_buf))[idx]
97# define xelf_update_rel(data, idx, name) \
98 /* nothing */ ((void) (data), (void) (idx), (void) (name), 1)
99
100# define XElf_Rela_vardef(name) Elf32_Rela *name
101# define xelf_getrela(data, idx, name) \
102 name = &((Elf32_Rela *) ((data)->d_buf))[idx]
103# define xelf_getrela_ptr(data, idx, name) \
104 name = &((Elf32_Rela *) ((data)->d_buf))[idx]
105# define xelf_update_rela(data, idx, name) \
106 /* nothing */ ((void) (data), (void) (idx), (void) (name), 1)
107
108# define XElf_Verdef_vardef(name) Elf32_Verdef *name
109# define xelf_getverdef(data, offset, name) \
110 name = ((Elf32_Verdef *) ((char *) ((data)->d_buf) + (offset)))
111
112# define XElf_Verdaux_vardef(name) Elf32_Verdaux *name
113# define xelf_getverdaux(data, offset, name) \
114 name = ((Elf32_Verdaux *) ((char *) ((data)->d_buf) + (offset)))
115
116# define XELF_ST_TYPE(info) ELF32_ST_TYPE (info)
117# define XELF_ST_BIND(info) ELF32_ST_BIND (info)
118# define XELF_ST_INFO(bind, type) ELF32_ST_INFO (bind, type)
119# define XELF_ST_VISIBILITY(info) ELF32_ST_VISIBILITY (info)
120
121# define XELF_R_SYM(info) ELF32_R_SYM (info)
122# define XELF_R_TYPE(info) ELF32_R_TYPE (info)
123# define XELF_R_INFO(sym, type) ELF32_R_INFO (sym, type)
124
125# define xelf_fsize(elf, type, cnt) \
126 (__builtin_constant_p (type) \
127 ? ({ size_t fsize; \
128 switch (type) \
129 { \
130 case ELF_T_BYTE: fsize = 1; break; \
131 case ELF_T_ADDR: fsize = sizeof (Elf32_Addr); break; \
132 case ELF_T_DYN: fsize = sizeof (Elf32_Dyn); break; \
133 case ELF_T_EHDR: fsize = sizeof (Elf32_Ehdr); break; \
134 case ELF_T_HALF: fsize = sizeof (Elf32_Half); break; \
135 case ELF_T_OFF: fsize = sizeof (Elf32_Off); break; \
136 case ELF_T_PHDR: fsize = sizeof (Elf32_Phdr); break; \
137 case ELF_T_RELA: fsize = sizeof (Elf32_Rela); break; \
138 case ELF_T_REL: fsize = sizeof (Elf32_Rel); break; \
139 case ELF_T_SHDR: fsize = sizeof (Elf32_Shdr); break; \
140 case ELF_T_SWORD: fsize = sizeof (Elf32_Sword); break; \
141 case ELF_T_SYM: fsize = sizeof (Elf32_Sym); break; \
142 case ELF_T_WORD: fsize = sizeof (Elf32_Word); break; \
143 case ELF_T_XWORD: fsize = sizeof (Elf32_Xword); break; \
144 case ELF_T_SXWORD: fsize = sizeof (Elf32_Sxword); break; \
145 case ELF_T_VDEF: fsize = sizeof (Elf32_Verdef); break; \
146 case ELF_T_VDAUX: fsize = sizeof (Elf32_Verdaux); break; \
147 case ELF_T_VNEED: fsize = sizeof (Elf32_Verneed); break; \
148 case ELF_T_VNAUX: fsize = sizeof (Elf32_Vernaux); break; \
149 case ELF_T_NHDR: fsize = sizeof (Elf32_Nhdr); break; \
150 case ELF_T_SYMINFO: fsize = sizeof (Elf32_Syminfo); break; \
151 case ELF_T_MOVE: fsize = sizeof (Elf32_Move); break; \
152 default: fsize = 0; break; \
153 } \
154 fsize * (cnt); }) \
155 : gelf_fsize (elf, type, cnt, EV_CURRENT))
156#elif NATIVE_ELF == 64
157/* 64-bit only. */
158# define XElf_Ehdr Elf64_Ehdr
159# define XElf_Shdr Elf64_Shdr
160# define XElf_Addr Elf64_Addr
161# define XElf_Half Elf64_Half
162# define XElf_Off Elf64_Off
163# define XElf_Word Elf64_Word
164# define XElf_Xword Elf64_Xword
165# define XElf_Sxword Elf64_Sxword
166# define XElf_Versym Elf64_Versym
167# define XElf_Sym Elf64_Sym
168# define XElf_Rel Elf64_Rel
169# define XElf_Rela Elf64_Rela
170
171# define XElf_Ehdr_vardef(name) Elf64_Ehdr *name
172# define xelf_getehdr(elf, name) name = elf64_getehdr (elf)
173# define xelf_getehdr_copy(elf, name, copy) \
174 (copy) = *(name = elf64_getehdr (elf))
175# define xelf_newehdr(elf, klass) elf64_newehdr (elf)
176# define xelf_update_ehdr(elf, ehdr) \
177 /* nothing */ ((void) (elf), (void) (ehdr), 1)
178
179# define xelf_getclass(elf) ELFCLASS32
180
181# define XElf_Phdr_vardef(name) Elf64_Phdr *name
182# define xelf_newphdr(elf, n) elf64_newphdr (elf, n)
183# define xelf_getphdr(elf, idx, name) name = elf64_getphdr (elf) + idx
184# define xelf_getphdr_ptr(elf, idx, name) name = elf64_getphdr (elf) + idx
185# define xelf_update_phdr(elf, idx, phdr) \
186 /* nothing */ ((void) (elf), (void) (idx), (void) (phdr), 1)
187
188# define XElf_Shdr_vardef(name) Elf64_Shdr *name
189# define xelf_getshdr(scn, name) name = elf64_getshdr (scn)
190# define xelf_getshdr_copy(scn, name, copy) \
191 (copy) = *(name = elf64_getshdr (scn))
192# define xelf_update_shdr(scn, shdr) \
193 /* nothing */ ((void) (scn), (void) (shdr), 1)
194
195# define XElf_Sym_vardef(name) Elf64_Sym *name
196# define xelf_getsym(data, idx, name) \
197 name = &((Elf64_Sym *) (data)->d_buf)[idx]
198# define xelf_getsym_ptr(data, idx, name) \
199 name = &((Elf64_Sym *) (data)->d_buf)[idx]
200# define xelf_getsymshndx(data, ndxdata, idx, name1, name2) \
201 (name1 = &((Elf64_Sym *) ((data)->d_buf))[idx]); \
202 name2 = (unlikely ((ndxdata) != NULL) \
203 ? ((Elf32_Word *) ((ndxdata)->d_buf))[idx] : 0)
204# define xelf_update_sym(data, idx, sym) \
205 /* nothing */ ((void) (data), (void) (idx), (void) (sym), 1)
206# define xelf_update_symshndx(data, ndxdata, idx, name1, name2, datachanged) \
207 if (datachanged) \
208 ((Elf64_Sym *) ((data)->d_buf))[idx] = *name1; \
209 if (ndxdata != NULL) \
210 (((Elf32_Word *) ((ndxdata)->d_buf))[idx] = name2)
211
212# define XElf_Versym_vardef(name) Elf64_Versym name
213# define xelf_getversym_copy(data, idx, name) \
214 (name = ((Elf64_Versym *) ((data)->d_buf))[idx], (&name))
215
216# define XElf_Dyn_vardef(name) Elf64_Dyn *name
217# define xelf_getdyn(data, idx, name) \
218 name = &((Elf64_Dyn *) ((data)->d_buf))[idx]
219# define xelf_getdyn_ptr(data, idx, name) \
220 name = &((Elf64_Dyn *) ((data)->d_buf))[idx]
221# define xelf_update_dyn(data, idx, name) \
222 /* nothing */ ((void) (data), (void) (idx), (void) (name), 1)
223
224# define XElf_Rel_vardef(name) Elf64_Rel *name
225# define xelf_getrel(data, idx, name) \
226 name = &((Elf64_Rel *) ((data)->d_buf))[idx]
227# define xelf_getrel_ptr(data, idx, name) \
228 name = &((Elf64_Rel *) ((data)->d_buf))[idx]
229# define xelf_update_rel(data, idx, name) \
230 /* nothing */ ((void) (data), (void) (idx), (void) (name), 1)
231
232# define XElf_Rela_vardef(name) Elf64_Rela *name
233# define xelf_getrela(data, idx, name) \
234 name = &((Elf64_Rela *) ((data)->d_buf))[idx]
235# define xelf_getrela_ptr(data, idx, name) \
236 name = &((Elf64_Rela *) ((data)->d_buf))[idx]
237# define xelf_update_rela(data, idx, name) \
238 /* nothing */ ((void) (data), (void) (idx), (void) (name), 1)
239
240# define XElf_Verdef_vardef(name) Elf64_Verdef *name
241# define xelf_getverdef(data, offset, name) \
242 name = ((Elf64_Verdef *) ((char *) ((data)->d_buf) + (offset)))
243
244# define XElf_Verdaux_vardef(name) Elf64_Verdaux *name
245# define xelf_getverdaux(data, offset, name) \
246 name = ((Elf64_Verdaux *) ((char *) ((data)->d_buf) + (offset)))
247
248# define XELF_ST_TYPE(info) ELF64_ST_TYPE (info)
249# define XELF_ST_BIND(info) ELF64_ST_BIND (info)
250# define XELF_ST_INFO(bind, type) ELF64_ST_INFO (bind, type)
251# define XELF_ST_VISIBILITY(info) ELF64_ST_VISIBILITY (info)
252
253# define XELF_R_SYM(info) ELF64_R_SYM (info)
254# define XELF_R_TYPE(info) ELF64_R_TYPE (info)
255# define XELF_R_INFO(sym, type) ELF64_R_INFO (sym, type)
256
257# define xelf_fsize(elf, type, cnt) \
258 (__builtin_constant_p (type) \
259 ? ({ size_t fsize; \
260 switch (type) \
261 { \
262 case ELF_T_BYTE: fsize = 1; break; \
263 case ELF_T_ADDR: fsize = sizeof (Elf64_Addr); break; \
264 case ELF_T_DYN: fsize = sizeof (Elf64_Dyn); break; \
265 case ELF_T_EHDR: fsize = sizeof (Elf64_Ehdr); break; \
266 case ELF_T_HALF: fsize = sizeof (Elf64_Half); break; \
267 case ELF_T_OFF: fsize = sizeof (Elf64_Off); break; \
268 case ELF_T_PHDR: fsize = sizeof (Elf64_Phdr); break; \
269 case ELF_T_RELA: fsize = sizeof (Elf64_Rela); break; \
270 case ELF_T_REL: fsize = sizeof (Elf64_Rel); break; \
271 case ELF_T_SHDR: fsize = sizeof (Elf64_Shdr); break; \
272 case ELF_T_SWORD: fsize = sizeof (Elf64_Sword); break; \
273 case ELF_T_SYM: fsize = sizeof (Elf64_Sym); break; \
274 case ELF_T_WORD: fsize = sizeof (Elf64_Word); break; \
275 case ELF_T_XWORD: fsize = sizeof (Elf64_Xword); break; \
276 case ELF_T_SXWORD: fsize = sizeof (Elf64_Sxword); break; \
277 case ELF_T_VDEF: fsize = sizeof (Elf64_Verdef); break; \
278 case ELF_T_VDAUX: fsize = sizeof (Elf64_Verdaux); break; \
279 case ELF_T_VNEED: fsize = sizeof (Elf64_Verneed); break; \
280 case ELF_T_VNAUX: fsize = sizeof (Elf64_Vernaux); break; \
281 case ELF_T_NHDR: fsize = sizeof (Elf64_Nhdr); break; \
282 case ELF_T_SYMINFO: fsize = sizeof (Elf64_Syminfo); break; \
283 case ELF_T_MOVE: fsize = sizeof (Elf64_Move); break; \
284 default: fsize = 0; break; \
285 } \
286 fsize * (cnt); }) \
287 : gelf_fsize (elf, type, cnt, EV_CURRENT))
288#else
289# include <gelf.h>
290
291/* Generic linker. */
292# define XElf_Ehdr GElf_Ehdr
293# define XElf_Shdr GElf_Shdr
294# define XElf_Addr GElf_Addr
295# define XElf_Half GElf_Half
296# define XElf_Off GElf_Off
297# define XElf_Word GElf_Word
298# define XElf_Xword GElf_Xword
299# define XElf_Sxword GElf_Sxword
300# define XElf_Versym GElf_Versym
301# define XElf_Sym GElf_Sym
302# define XElf_Rel GElf_Rel
303# define XElf_Rela GElf_Rela
304
305# define XElf_Ehdr_vardef(name) GElf_Ehdr name##_mem; GElf_Ehdr *name
306# define xelf_getehdr(elf, name) name = gelf_getehdr (elf, &name##_mem)
307# define xelf_getehdr_copy(elf, name, copy) \
308 name = gelf_getehdr (elf, &(copy))
309# define xelf_newehdr(elf, klass) gelf_newehdr (elf, klass)
310# define xelf_update_ehdr(elf, ehdr) gelf_update_ehdr (elf, ehdr)
311
312# define xelf_getclass(elf) gelf_getclass (elf)
313
314# define XElf_Phdr_vardef(name) GElf_Phdr name##_mem; GElf_Phdr *name
315# define xelf_newphdr(elf, n) gelf_newphdr (elf, n)
316# define xelf_getphdr(elf, idx, name) \
317 name = gelf_getphdr (elf, idx, &name##_mem)
318# define xelf_getphdr_ptr(elf, idx, name) \
319 name = &name##_mem
320# define xelf_update_phdr(elf, idx, phdr) \
321 gelf_update_phdr (elf, idx, phdr)
322
323# define XElf_Shdr_vardef(name) GElf_Shdr name##_mem; GElf_Shdr *name
324# define xelf_getshdr(scn, name) name = gelf_getshdr (scn, &name##_mem)
325# define xelf_getshdr_copy(scn, name, copy) \
326 name = gelf_getshdr (scn, &(copy))
327# define xelf_update_shdr(scn, shdr) gelf_update_shdr (scn, shdr)
328
329# define XElf_Sym_vardef(name) GElf_Sym name##_mem; GElf_Sym *name
330# define xelf_getsym(data, idx, name) \
331 name = gelf_getsym (data, idx, &name##_mem)
332# define xelf_getsym_ptr(data, idx, name) \
333 name = &name##_mem
334# define xelf_getsymshndx(data, ndxdata, idx, name1, name2) \
335 name1 = gelf_getsymshndx (data, ndxdata, idx, &name1##_mem, &(name2))
336# define xelf_update_sym(data, idx, sym) gelf_update_sym (data, idx, sym)
337# define xelf_update_symshndx(data, ndxdata, idx, name1, name2, datachanged) \
338 gelf_update_symshndx (data, ndxdata, idx, name1, name2)
339
340# define XElf_Versym_vardef(name) GElf_Versym name
341# define xelf_getversym_copy(data, idx, name) \
342 gelf_getversym (data, idx, &name)
343
344# define XElf_Dyn_vardef(name) GElf_Dyn name##_mem; GElf_Dyn *name
345# define xelf_getdyn(data, idx, name) \
346 name = gelf_getdyn (data, idx, &name##_mem)
347# define xelf_getdyn_ptr(data, idx, name) \
348 name = &name##_mem
349# define xelf_update_dyn(data, idx, name) \
350 gelf_update_dyn (data, idx, name)
351
352# define XElf_Rel_vardef(name) GElf_Rel name##_mem; GElf_Rel *name
353# define xelf_getrel(data, idx, name) \
354 name = gelf_getrel (data, idx, &name##_mem)
355# define xelf_getrel_ptr(data, idx, name) \
356 name = &name##_mem
357# define xelf_update_rel(data, idx, name) \
358 gelf_update_rel (data, idx, name)
359
360# define XElf_Rela_vardef(name) GElf_Rela name##_mem; GElf_Rela *name
361# define xelf_getrela(data, idx, name) \
362 name = gelf_getrela (data, idx, &name##_mem)
363# define xelf_getrela_ptr(data, idx, name) \
364 name = &name##_mem
365# define xelf_update_rela(data, idx, name) \
366 gelf_update_rela (data, idx, name)
367
368# define XElf_Verdef_vardef(name) GElf_Verdef name##_mem; GElf_Verdef *name
369# define xelf_getverdef(data, offset, name) \
370 name = gelf_getverdef (data, offset, &name##_mem)
371
372# define XElf_Verdaux_vardef(name) GElf_Verdaux name##_mem; GElf_Verdaux *name
373# define xelf_getverdaux(data, offset, name) \
374 name = gelf_getverdaux (data, offset, &name##_mem)
375
376# define XELF_ST_TYPE(info) GELF_ST_TYPE (info)
377# define XELF_ST_BIND(info) GELF_ST_BIND (info)
378# define XELF_ST_INFO(bind, type) GELF_ST_INFO (bind, type)
379# define XELF_ST_VISIBILITY(info) GELF_ST_VISIBILITY (info)
380
381# define XELF_R_SYM(info) GELF_R_SYM (info)
382# define XELF_R_TYPE(info) GELF_R_TYPE (info)
383# define XELF_R_INFO(sym, type) GELF_R_INFO (sym, type)
384
385# define xelf_fsize(elf, type, cnt) \
386 gelf_fsize (elf, type, cnt, EV_CURRENT)
387#endif