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62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
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/* Get static program's program headers. IA-64 version.
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Copyright (C) 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but 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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <assert.h>
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#include <errno.h>
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#include <link.h>
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#include <stddef.h>
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extern unsigned long ip_segrel;
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asm (".section .rodata; ip_segrel: data8 @segrel(ip#); .previous");
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int
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dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
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size_t size, void *data), void *data)
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{
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char *ip;
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ElfW(Ehdr) *ehdr;
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struct dl_phdr_info info;
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int ret;
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asm ("ip: mov %0 = ip" : "=r" (ip));
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ehdr = (ElfW(Ehdr) *) (ip - ip_segrel);
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assert (ehdr->e_ident[0] == 0x7f
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&& ehdr->e_ident[1] == 'E'
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&& ehdr->e_ident[2] == 'L'
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&& ehdr->e_ident[3] == 'F'
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&& ehdr->e_ident[EI_CLASS] == ELFCLASS64
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&& ehdr->e_ident[EI_DATA] == ELFDATA2LSB
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&& ehdr->e_machine == EM_IA_64
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&& ehdr->e_type == ET_EXEC);
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info.dlpi_addr = 0;
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info.dlpi_name = NULL;
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info.dlpi_phdr = (ElfW(Phdr) *) ((char *) ehdr + ehdr->e_phoff);
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info.dlpi_phnum = ehdr->e_phnum;
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ret = callback (&info, sizeof (struct dl_phdr_info), data);
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if (ret)
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return ret;
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return __dl_iterate_phdr (callback, data);
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}
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