| /* Macros to enable writing native and generic ELF access code. |
| Copyright (C) 2003 Red Hat, Inc. |
| Written by Ulrich Drepper <drepper@redhat.com>, 2003. |
| |
| This program is Open Source software; you can redistribute it and/or |
| modify it under the terms of the Open Software License version 1.0 as |
| published by the Open Source Initiative. |
| |
| You should have received a copy of the Open Software License along |
| with this program; if not, you may obtain a copy of the Open Software |
| License version 1.0 from http://www.opensource.org/licenses/osl.php or |
| by writing the Open Source Initiative c/o Lawrence Rosen, Esq., |
| 3001 King Ranch Road, Ukiah, CA 95482. */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #include <libebl.h> |
| |
| |
| /* By default the linker is handling all architectures. But it can |
| be configured to be a native-only linker. */ |
| #if NATIVE_ELF == 32 |
| /* 32-bit only. */ |
| # define XElf_Ehdr Elf32_Ehdr |
| # define XElf_Shdr Elf32_Shdr |
| # define XElf_Off Elf32_Off |
| # define XElf_Addr Elf32_Addr |
| # define XElf_Half Elf32_Half |
| # define XElf_Word Elf32_Word |
| # define XElf_Xword Elf32_Word |
| # define XElf_Sxword Elf32_Sword |
| # define XElf_Versym Elf32_Versym |
| # define XElf_Sym Elf32_Sym |
| # define XElf_Rel Elf32_Rel |
| # define XElf_Rela Elf32_Rela |
| |
| # define XElf_Ehdr_vardef(name) Elf32_Ehdr *name |
| # define xelf_getehdr(elf, name) name = elf32_getehdr (elf) |
| # define xelf_getehdr_copy(elf, name, copy) \ |
| (copy) = *(name = elf32_getehdr (elf)) |
| # define xelf_newehdr(elf, klass) elf32_newehdr (elf) |
| # define xelf_update_ehdr(elf, ehdr) \ |
| /* nothing */ ((void) (elf), (void) (ehdr), 1) |
| |
| # define xelf_getclass(elf) ELFCLASS32 |
| |
| # define XElf_Phdr_vardef(name) Elf32_Phdr *name |
| # define xelf_newphdr(elf, n) elf32_newphdr (elf, n) |
| # define xelf_getphdr(elf, idx, name) name = elf32_getphdr (elf) + idx |
| # define xelf_getphdr_ptr(elf, idx, name) name = elf32_getphdr (elf) + idx |
| # define xelf_update_phdr(elf, idx, phdr) \ |
| /* nothing */ ((void) (elf), (void) (idx), (void) (phdr), 1) |
| |
| # define XElf_Shdr_vardef(name) Elf32_Shdr *name |
| # define xelf_getshdr(scn, name) name = elf32_getshdr (scn) |
| # define xelf_getshdr_copy(scn, name, copy) \ |
| (copy) = *(name = elf32_getshdr (scn)) |
| # define xelf_update_shdr(scn, shdr) \ |
| /* nothing */ ((void) (scn), (void) (shdr), 1) |
| |
| # define XElf_Sym_vardef(name) Elf32_Sym *name |
| # define xelf_getsym(data, idx, name) \ |
| name = &((Elf32_Sym *) (data)->d_buf)[idx] |
| # define xelf_getsym_ptr(data, idx, name) \ |
| name = &((Elf32_Sym *) (data)->d_buf)[idx] |
| # define xelf_getsymshndx(data, ndxdata, idx, name1, name2) \ |
| (name1 = &((Elf32_Sym *) ((data)->d_buf))[idx]); \ |
| name2 = (unlikely ((ndxdata) != NULL) \ |
| ? ((Elf32_Word *) ((ndxdata)->d_buf))[idx] : 0) |
| # define xelf_update_sym(data, idx, sym) \ |
| /* nothing */ ((void) (data), (void) (idx), (void) (sym), 1) |
| # define xelf_update_symshndx(data, ndxdata, idx, name1, name2, datachanged) \ |
| if (datachanged) \ |
| ((Elf32_Sym *) ((data)->d_buf))[idx] = *name1; \ |
| if (unlikely (ndxdata != NULL)) \ |
| ((Elf32_Word *) ((ndxdata)->d_buf))[idx] = name2 |
| |
| # define XElf_Versym_vardef(name) Elf32_Versym name |
| # define xelf_getversym_copy(data, idx, name) \ |
| (name = ((Elf32_Versym *) ((data)->d_buf))[idx], &name) |
| |
| # define XElf_Dyn_vardef(name) Elf32_Dyn *name |
| # define xelf_getdyn(data, idx, name) \ |
| name = &((Elf32_Dyn *) ((data)->d_buf))[idx] |
| # define xelf_getdyn_ptr(data, idx, name) \ |
| name = &((Elf32_Dyn *) ((data)->d_buf))[idx] |
| # define xelf_update_dyn(data, idx, name) \ |
| /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) |
| |
| # define XElf_Rel_vardef(name) Elf32_Rel *name |
| # define xelf_getrel(data, idx, name) \ |
| name = &((Elf32_Rel *) ((data)->d_buf))[idx] |
| # define xelf_getrel_ptr(data, idx, name) \ |
| name = &((Elf32_Rel *) ((data)->d_buf))[idx] |
| # define xelf_update_rel(data, idx, name) \ |
| /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) |
| |
| # define XElf_Rela_vardef(name) Elf32_Rela *name |
| # define xelf_getrela(data, idx, name) \ |
| name = &((Elf32_Rela *) ((data)->d_buf))[idx] |
| # define xelf_getrela_ptr(data, idx, name) \ |
| name = &((Elf32_Rela *) ((data)->d_buf))[idx] |
| # define xelf_update_rela(data, idx, name) \ |
| /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) |
| |
| # define XElf_Verdef_vardef(name) Elf32_Verdef *name |
| # define xelf_getverdef(data, offset, name) \ |
| name = ((Elf32_Verdef *) ((char *) ((data)->d_buf) + (offset))) |
| |
| # define XElf_Verdaux_vardef(name) Elf32_Verdaux *name |
| # define xelf_getverdaux(data, offset, name) \ |
| name = ((Elf32_Verdaux *) ((char *) ((data)->d_buf) + (offset))) |
| |
| # define XELF_ST_TYPE(info) ELF32_ST_TYPE (info) |
| # define XELF_ST_BIND(info) ELF32_ST_BIND (info) |
| # define XELF_ST_INFO(bind, type) ELF32_ST_INFO (bind, type) |
| # define XELF_ST_VISIBILITY(info) ELF32_ST_VISIBILITY (info) |
| |
| # define XELF_R_SYM(info) ELF32_R_SYM (info) |
| # define XELF_R_TYPE(info) ELF32_R_TYPE (info) |
| # define XELF_R_INFO(sym, type) ELF32_R_INFO (sym, type) |
| |
| # define xelf_fsize(elf, type, cnt) \ |
| (__builtin_constant_p (type) \ |
| ? ({ size_t fsize; \ |
| switch (type) \ |
| { \ |
| case ELF_T_BYTE: fsize = 1; break; \ |
| case ELF_T_ADDR: fsize = sizeof (Elf32_Addr); break; \ |
| case ELF_T_DYN: fsize = sizeof (Elf32_Dyn); break; \ |
| case ELF_T_EHDR: fsize = sizeof (Elf32_Ehdr); break; \ |
| case ELF_T_HALF: fsize = sizeof (Elf32_Half); break; \ |
| case ELF_T_OFF: fsize = sizeof (Elf32_Off); break; \ |
| case ELF_T_PHDR: fsize = sizeof (Elf32_Phdr); break; \ |
| case ELF_T_RELA: fsize = sizeof (Elf32_Rela); break; \ |
| case ELF_T_REL: fsize = sizeof (Elf32_Rel); break; \ |
| case ELF_T_SHDR: fsize = sizeof (Elf32_Shdr); break; \ |
| case ELF_T_SWORD: fsize = sizeof (Elf32_Sword); break; \ |
| case ELF_T_SYM: fsize = sizeof (Elf32_Sym); break; \ |
| case ELF_T_WORD: fsize = sizeof (Elf32_Word); break; \ |
| case ELF_T_XWORD: fsize = sizeof (Elf32_Xword); break; \ |
| case ELF_T_SXWORD: fsize = sizeof (Elf32_Sxword); break; \ |
| case ELF_T_VDEF: fsize = sizeof (Elf32_Verdef); break; \ |
| case ELF_T_VDAUX: fsize = sizeof (Elf32_Verdaux); break; \ |
| case ELF_T_VNEED: fsize = sizeof (Elf32_Verneed); break; \ |
| case ELF_T_VNAUX: fsize = sizeof (Elf32_Vernaux); break; \ |
| case ELF_T_NHDR: fsize = sizeof (Elf32_Nhdr); break; \ |
| case ELF_T_SYMINFO: fsize = sizeof (Elf32_Syminfo); break; \ |
| case ELF_T_MOVE: fsize = sizeof (Elf32_Move); break; \ |
| default: fsize = 0; break; \ |
| } \ |
| fsize * (cnt); }) \ |
| : gelf_fsize (elf, type, cnt, EV_CURRENT)) |
| #elif NATIVE_ELF == 64 |
| /* 64-bit only. */ |
| # define XElf_Ehdr Elf64_Ehdr |
| # define XElf_Shdr Elf64_Shdr |
| # define XElf_Addr Elf64_Addr |
| # define XElf_Half Elf64_Half |
| # define XElf_Off Elf64_Off |
| # define XElf_Word Elf64_Word |
| # define XElf_Xword Elf64_Xword |
| # define XElf_Sxword Elf64_Sxword |
| # define XElf_Versym Elf64_Versym |
| # define XElf_Sym Elf64_Sym |
| # define XElf_Rel Elf64_Rel |
| # define XElf_Rela Elf64_Rela |
| |
| # define XElf_Ehdr_vardef(name) Elf64_Ehdr *name |
| # define xelf_getehdr(elf, name) name = elf64_getehdr (elf) |
| # define xelf_getehdr_copy(elf, name, copy) \ |
| (copy) = *(name = elf64_getehdr (elf)) |
| # define xelf_newehdr(elf, klass) elf64_newehdr (elf) |
| # define xelf_update_ehdr(elf, ehdr) \ |
| /* nothing */ ((void) (elf), (void) (ehdr), 1) |
| |
| # define xelf_getclass(elf) ELFCLASS32 |
| |
| # define XElf_Phdr_vardef(name) Elf64_Phdr *name |
| # define xelf_newphdr(elf, n) elf64_newphdr (elf, n) |
| # define xelf_getphdr(elf, idx, name) name = elf64_getphdr (elf) + idx |
| # define xelf_getphdr_ptr(elf, idx, name) name = elf64_getphdr (elf) + idx |
| # define xelf_update_phdr(elf, idx, phdr) \ |
| /* nothing */ ((void) (elf), (void) (idx), (void) (phdr), 1) |
| |
| # define XElf_Shdr_vardef(name) Elf64_Shdr *name |
| # define xelf_getshdr(scn, name) name = elf64_getshdr (scn) |
| # define xelf_getshdr_copy(scn, name, copy) \ |
| (copy) = *(name = elf64_getshdr (scn)) |
| # define xelf_update_shdr(scn, shdr) \ |
| /* nothing */ ((void) (scn), (void) (shdr), 1) |
| |
| # define XElf_Sym_vardef(name) Elf64_Sym *name |
| # define xelf_getsym(data, idx, name) \ |
| name = &((Elf64_Sym *) (data)->d_buf)[idx] |
| # define xelf_getsym_ptr(data, idx, name) \ |
| name = &((Elf64_Sym *) (data)->d_buf)[idx] |
| # define xelf_getsymshndx(data, ndxdata, idx, name1, name2) \ |
| (name1 = &((Elf64_Sym *) ((data)->d_buf))[idx]); \ |
| name2 = (unlikely ((ndxdata) != NULL) \ |
| ? ((Elf32_Word *) ((ndxdata)->d_buf))[idx] : 0) |
| # define xelf_update_sym(data, idx, sym) \ |
| /* nothing */ ((void) (data), (void) (idx), (void) (sym), 1) |
| # define xelf_update_symshndx(data, ndxdata, idx, name1, name2, datachanged) \ |
| if (datachanged) \ |
| ((Elf64_Sym *) ((data)->d_buf))[idx] = *name1; \ |
| if (ndxdata != NULL) \ |
| (((Elf32_Word *) ((ndxdata)->d_buf))[idx] = name2) |
| |
| # define XElf_Versym_vardef(name) Elf64_Versym name |
| # define xelf_getversym_copy(data, idx, name) \ |
| (name = ((Elf64_Versym *) ((data)->d_buf))[idx], (&name)) |
| |
| # define XElf_Dyn_vardef(name) Elf64_Dyn *name |
| # define xelf_getdyn(data, idx, name) \ |
| name = &((Elf64_Dyn *) ((data)->d_buf))[idx] |
| # define xelf_getdyn_ptr(data, idx, name) \ |
| name = &((Elf64_Dyn *) ((data)->d_buf))[idx] |
| # define xelf_update_dyn(data, idx, name) \ |
| /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) |
| |
| # define XElf_Rel_vardef(name) Elf64_Rel *name |
| # define xelf_getrel(data, idx, name) \ |
| name = &((Elf64_Rel *) ((data)->d_buf))[idx] |
| # define xelf_getrel_ptr(data, idx, name) \ |
| name = &((Elf64_Rel *) ((data)->d_buf))[idx] |
| # define xelf_update_rel(data, idx, name) \ |
| /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) |
| |
| # define XElf_Rela_vardef(name) Elf64_Rela *name |
| # define xelf_getrela(data, idx, name) \ |
| name = &((Elf64_Rela *) ((data)->d_buf))[idx] |
| # define xelf_getrela_ptr(data, idx, name) \ |
| name = &((Elf64_Rela *) ((data)->d_buf))[idx] |
| # define xelf_update_rela(data, idx, name) \ |
| /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) |
| |
| # define XElf_Verdef_vardef(name) Elf64_Verdef *name |
| # define xelf_getverdef(data, offset, name) \ |
| name = ((Elf64_Verdef *) ((char *) ((data)->d_buf) + (offset))) |
| |
| # define XElf_Verdaux_vardef(name) Elf64_Verdaux *name |
| # define xelf_getverdaux(data, offset, name) \ |
| name = ((Elf64_Verdaux *) ((char *) ((data)->d_buf) + (offset))) |
| |
| # define XELF_ST_TYPE(info) ELF64_ST_TYPE (info) |
| # define XELF_ST_BIND(info) ELF64_ST_BIND (info) |
| # define XELF_ST_INFO(bind, type) ELF64_ST_INFO (bind, type) |
| # define XELF_ST_VISIBILITY(info) ELF64_ST_VISIBILITY (info) |
| |
| # define XELF_R_SYM(info) ELF64_R_SYM (info) |
| # define XELF_R_TYPE(info) ELF64_R_TYPE (info) |
| # define XELF_R_INFO(sym, type) ELF64_R_INFO (sym, type) |
| |
| # define xelf_fsize(elf, type, cnt) \ |
| (__builtin_constant_p (type) \ |
| ? ({ size_t fsize; \ |
| switch (type) \ |
| { \ |
| case ELF_T_BYTE: fsize = 1; break; \ |
| case ELF_T_ADDR: fsize = sizeof (Elf64_Addr); break; \ |
| case ELF_T_DYN: fsize = sizeof (Elf64_Dyn); break; \ |
| case ELF_T_EHDR: fsize = sizeof (Elf64_Ehdr); break; \ |
| case ELF_T_HALF: fsize = sizeof (Elf64_Half); break; \ |
| case ELF_T_OFF: fsize = sizeof (Elf64_Off); break; \ |
| case ELF_T_PHDR: fsize = sizeof (Elf64_Phdr); break; \ |
| case ELF_T_RELA: fsize = sizeof (Elf64_Rela); break; \ |
| case ELF_T_REL: fsize = sizeof (Elf64_Rel); break; \ |
| case ELF_T_SHDR: fsize = sizeof (Elf64_Shdr); break; \ |
| case ELF_T_SWORD: fsize = sizeof (Elf64_Sword); break; \ |
| case ELF_T_SYM: fsize = sizeof (Elf64_Sym); break; \ |
| case ELF_T_WORD: fsize = sizeof (Elf64_Word); break; \ |
| case ELF_T_XWORD: fsize = sizeof (Elf64_Xword); break; \ |
| case ELF_T_SXWORD: fsize = sizeof (Elf64_Sxword); break; \ |
| case ELF_T_VDEF: fsize = sizeof (Elf64_Verdef); break; \ |
| case ELF_T_VDAUX: fsize = sizeof (Elf64_Verdaux); break; \ |
| case ELF_T_VNEED: fsize = sizeof (Elf64_Verneed); break; \ |
| case ELF_T_VNAUX: fsize = sizeof (Elf64_Vernaux); break; \ |
| case ELF_T_NHDR: fsize = sizeof (Elf64_Nhdr); break; \ |
| case ELF_T_SYMINFO: fsize = sizeof (Elf64_Syminfo); break; \ |
| case ELF_T_MOVE: fsize = sizeof (Elf64_Move); break; \ |
| default: fsize = 0; break; \ |
| } \ |
| fsize * (cnt); }) \ |
| : gelf_fsize (elf, type, cnt, EV_CURRENT)) |
| #else |
| # include <gelf.h> |
| |
| /* Generic linker. */ |
| # define XElf_Ehdr GElf_Ehdr |
| # define XElf_Shdr GElf_Shdr |
| # define XElf_Addr GElf_Addr |
| # define XElf_Half GElf_Half |
| # define XElf_Off GElf_Off |
| # define XElf_Word GElf_Word |
| # define XElf_Xword GElf_Xword |
| # define XElf_Sxword GElf_Sxword |
| # define XElf_Versym GElf_Versym |
| # define XElf_Sym GElf_Sym |
| # define XElf_Rel GElf_Rel |
| # define XElf_Rela GElf_Rela |
| |
| # define XElf_Ehdr_vardef(name) GElf_Ehdr name##_mem; GElf_Ehdr *name |
| # define xelf_getehdr(elf, name) name = gelf_getehdr (elf, &name##_mem) |
| # define xelf_getehdr_copy(elf, name, copy) \ |
| name = gelf_getehdr (elf, &(copy)) |
| # define xelf_newehdr(elf, klass) gelf_newehdr (elf, klass) |
| # define xelf_update_ehdr(elf, ehdr) gelf_update_ehdr (elf, ehdr) |
| |
| # define xelf_getclass(elf) gelf_getclass (elf) |
| |
| # define XElf_Phdr_vardef(name) GElf_Phdr name##_mem; GElf_Phdr *name |
| # define xelf_newphdr(elf, n) gelf_newphdr (elf, n) |
| # define xelf_getphdr(elf, idx, name) \ |
| name = gelf_getphdr (elf, idx, &name##_mem) |
| # define xelf_getphdr_ptr(elf, idx, name) \ |
| name = &name##_mem |
| # define xelf_update_phdr(elf, idx, phdr) \ |
| gelf_update_phdr (elf, idx, phdr) |
| |
| # define XElf_Shdr_vardef(name) GElf_Shdr name##_mem; GElf_Shdr *name |
| # define xelf_getshdr(scn, name) name = gelf_getshdr (scn, &name##_mem) |
| # define xelf_getshdr_copy(scn, name, copy) \ |
| name = gelf_getshdr (scn, &(copy)) |
| # define xelf_update_shdr(scn, shdr) gelf_update_shdr (scn, shdr) |
| |
| # define XElf_Sym_vardef(name) GElf_Sym name##_mem; GElf_Sym *name |
| # define xelf_getsym(data, idx, name) \ |
| name = gelf_getsym (data, idx, &name##_mem) |
| # define xelf_getsym_ptr(data, idx, name) \ |
| name = &name##_mem |
| # define xelf_getsymshndx(data, ndxdata, idx, name1, name2) \ |
| name1 = gelf_getsymshndx (data, ndxdata, idx, &name1##_mem, &(name2)) |
| # define xelf_update_sym(data, idx, sym) gelf_update_sym (data, idx, sym) |
| # define xelf_update_symshndx(data, ndxdata, idx, name1, name2, datachanged) \ |
| gelf_update_symshndx (data, ndxdata, idx, name1, name2) |
| |
| # define XElf_Versym_vardef(name) GElf_Versym name |
| # define xelf_getversym_copy(data, idx, name) \ |
| gelf_getversym (data, idx, &name) |
| |
| # define XElf_Dyn_vardef(name) GElf_Dyn name##_mem; GElf_Dyn *name |
| # define xelf_getdyn(data, idx, name) \ |
| name = gelf_getdyn (data, idx, &name##_mem) |
| # define xelf_getdyn_ptr(data, idx, name) \ |
| name = &name##_mem |
| # define xelf_update_dyn(data, idx, name) \ |
| gelf_update_dyn (data, idx, name) |
| |
| # define XElf_Rel_vardef(name) GElf_Rel name##_mem; GElf_Rel *name |
| # define xelf_getrel(data, idx, name) \ |
| name = gelf_getrel (data, idx, &name##_mem) |
| # define xelf_getrel_ptr(data, idx, name) \ |
| name = &name##_mem |
| # define xelf_update_rel(data, idx, name) \ |
| gelf_update_rel (data, idx, name) |
| |
| # define XElf_Rela_vardef(name) GElf_Rela name##_mem; GElf_Rela *name |
| # define xelf_getrela(data, idx, name) \ |
| name = gelf_getrela (data, idx, &name##_mem) |
| # define xelf_getrela_ptr(data, idx, name) \ |
| name = &name##_mem |
| # define xelf_update_rela(data, idx, name) \ |
| gelf_update_rela (data, idx, name) |
| |
| # define XElf_Verdef_vardef(name) GElf_Verdef name##_mem; GElf_Verdef *name |
| # define xelf_getverdef(data, offset, name) \ |
| name = gelf_getverdef (data, offset, &name##_mem) |
| |
| # define XElf_Verdaux_vardef(name) GElf_Verdaux name##_mem; GElf_Verdaux *name |
| # define xelf_getverdaux(data, offset, name) \ |
| name = gelf_getverdaux (data, offset, &name##_mem) |
| |
| # define XELF_ST_TYPE(info) GELF_ST_TYPE (info) |
| # define XELF_ST_BIND(info) GELF_ST_BIND (info) |
| # define XELF_ST_INFO(bind, type) GELF_ST_INFO (bind, type) |
| # define XELF_ST_VISIBILITY(info) GELF_ST_VISIBILITY (info) |
| |
| # define XELF_R_SYM(info) GELF_R_SYM (info) |
| # define XELF_R_TYPE(info) GELF_R_TYPE (info) |
| # define XELF_R_INFO(sym, type) GELF_R_INFO (sym, type) |
| |
| # define xelf_fsize(elf, type, cnt) \ |
| gelf_fsize (elf, type, cnt, EV_CURRENT) |
| #endif |
