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132 lines
3.5 KiB
C
132 lines
3.5 KiB
C
/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2005 Red Hat, Inc.
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This file is part of elfutils.
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Written by Ulrich Drepper <drepper@redhat.com>, 1998.
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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 the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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
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GNU General Public License for more details.
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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, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include ELFUTILS_HEADER(dw)
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#include <stdio.h>
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#include <unistd.h>
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int
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main (int argc, char *argv[])
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{
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int cnt;
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for (cnt = 1; cnt < argc; ++cnt)
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{
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int fd = open (argv[cnt], O_RDONLY);
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Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
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if (dbg == NULL)
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{
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printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1));
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close (fd);
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continue;
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}
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Dwarf_Off cuoff = 0;
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Dwarf_Off old_cuoff = 0;
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size_t hsize;
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while (dwarf_nextcu (dbg, cuoff, &cuoff, &hsize, NULL, NULL, NULL) == 0)
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{
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/* Get the DIE for the CU. */
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Dwarf_Die die;
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if (dwarf_offdie (dbg, old_cuoff + hsize, &die) == NULL)
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/* Something went wrong. */
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break;
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Dwarf_Off offset = 0;
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while (1)
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{
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size_t length;
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Dwarf_Abbrev *abbrev = dwarf_getabbrev (&die, offset, &length);
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if (abbrev == NULL || abbrev == DWARF_END_ABBREV)
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/* End of the list. */
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break;
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unsigned tag = dwarf_getabbrevtag (abbrev);
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if (tag == 0)
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{
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printf ("dwarf_getabbrevtag at offset %llu returned error: %s\n",
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(unsigned long long int) offset,
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dwarf_errmsg (-1));
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break;
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}
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unsigned code = dwarf_getabbrevcode (abbrev);
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if (code == 0)
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{
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printf ("dwarf_getabbrevcode at offset %llu returned error: %s\n",
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(unsigned long long int) offset,
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dwarf_errmsg (-1));
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break;
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}
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int children = dwarf_abbrevhaschildren (abbrev);
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if (children < 0)
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{
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printf ("dwarf_abbrevhaschildren at offset %llu returned error: %s\n",
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(unsigned long long int) offset,
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dwarf_errmsg (-1));
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break;
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}
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printf ("abbrev[%llu]: code = %u, tag = %u, children = %d\n",
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(unsigned long long int) offset, code, tag, children);
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size_t attrcnt;
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if (dwarf_getattrcnt (abbrev, &attrcnt) != 0)
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{
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printf ("dwarf_getattrcnt at offset %llu returned error: %s\n",
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(unsigned long long int) offset,
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dwarf_errmsg (-1));
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break;
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}
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unsigned int attr_num;
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unsigned int attr_form;
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Dwarf_Off aboffset;
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size_t j;
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for (j = 0; j < attrcnt; ++j)
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if (dwarf_getabbrevattr (abbrev, j, &attr_num, &attr_form,
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&aboffset))
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printf ("dwarf_getabbrevattr for abbrev[%llu] and index %zu failed\n",
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(unsigned long long int) offset, j);
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else
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printf ("abbrev[%llu]: attr[%zu]: code = %u, form = %u, offset = %" PRIu64 "\n",
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(unsigned long long int) offset, j, attr_num,
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attr_form, (uint64_t) aboffset);
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offset += length;
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}
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old_cuoff = cuoff;
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}
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if (dwarf_end (dbg) != 0)
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printf ("dwarf_end failed for %s: %s\n", argv[cnt],
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dwarf_errmsg (-1));
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close (fd);
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}
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return 0;
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}
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