cosmopolitan/libc/elf/getelfsymboltable.c

37 lines
2.4 KiB
C
Raw Normal View History

2020-06-15 14:18:57 +00:00
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi
Copyright 2020 Justine Alexandra Roberts Tunney
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include "libc/elf/def.h"
#include "libc/elf/elf.h"
Elf64_Sym *GetElfSymbolTable(const Elf64_Ehdr *elf, size_t mapsize,
2020-06-15 14:18:57 +00:00
Elf64_Xword *out_count) {
Elf64_Half i;
Elf64_Shdr *shdr;
for (i = elf->e_shnum; i > 0; --i) {
shdr = getelfsectionheaderaddress(elf, mapsize, i - 1);
if (shdr->sh_type == SHT_SYMTAB) {
if (shdr->sh_entsize != sizeof(Elf64_Sym)) continue;
if (out_count) *out_count = shdr->sh_size / shdr->sh_entsize;
return getelfsectionaddress(elf, mapsize, shdr);
}
}
return NULL;
}