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