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87 lines
2.2 KiB
87 lines
2.2 KiB
/* Return number of sections in the ELF file. |
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Copyright (C) 2002, 2009, 2015 Red Hat, Inc. |
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This file is part of elfutils. |
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Written by Ulrich Drepper <drepper@redhat.com>, 2002. |
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This file is free software; you can redistribute it and/or modify |
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it under the terms of either |
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* the GNU Lesser General Public License as published by the Free |
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Software Foundation; either version 3 of the License, or (at |
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your option) any later version |
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or |
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* the GNU General Public License as published by the Free |
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Software Foundation; either version 2 of the License, or (at |
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your option) any later version |
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or both in parallel, as here. |
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elfutils 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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You should have received copies of the GNU General Public License and |
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the GNU Lesser General Public License along with this program. If |
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not, see <http://www.gnu.org/licenses/>. */ |
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#ifdef HAVE_CONFIG_H |
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# include <config.h> |
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#endif |
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#include <assert.h> |
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#include <gelf.h> |
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#include <stddef.h> |
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#include "libelfP.h" |
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int |
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internal_function |
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__elf_getshdrnum_rdlock (Elf *elf, size_t *dst) |
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{ |
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int result = 0; |
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int idx; |
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if (elf == NULL) |
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return -1; |
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if (unlikely (elf->kind != ELF_K_ELF)) |
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{ |
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__libelf_seterrno (ELF_E_INVALID_HANDLE); |
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return -1; |
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} |
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idx = elf->state.elf.scns_last->cnt; |
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if (idx != 0 |
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|| (elf->state.elf.scns_last |
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!= (elf->class == ELFCLASS32 |
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|| (offsetof (Elf, state.elf32.scns) |
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== offsetof (Elf, state.elf64.scns)) |
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? &elf->state.elf32.scns : &elf->state.elf64.scns))) |
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/* There is at least one section. */ |
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*dst = 1 + elf->state.elf.scns_last->data[idx - 1].index; |
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else |
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*dst = 0; |
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return result; |
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} |
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int |
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elf_getshdrnum (Elf *elf, size_t *dst) |
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{ |
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int result; |
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if (elf == NULL) |
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return -1; |
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rwlock_rdlock (elf->lock); |
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result = __elf_getshdrnum_rdlock (elf, dst); |
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rwlock_unlock (elf->lock); |
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return result; |
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} |
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/* Alias for the deprecated name. */ |
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strong_alias (elf_getshdrnum, elf_getshnum)
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