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78 lines
1.8 KiB
78 lines
1.8 KiB
/* Copyright (C) 2011 Red Hat, Inc. |
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This file is part of elfutils. |
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Written by Marek Polacek <mpolacek@redhat.com>, 2011. |
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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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#ifdef HAVE_CONFIG_H |
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# include <config.h> |
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#endif |
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#include ELFUTILS_HEADER(dwfl) |
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#include <assert.h> |
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#include <dwarf.h> |
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#include <fcntl.h> |
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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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Dwarf_Off offset = 0; |
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size_t len; |
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int fd = open (argv[cnt], O_RDONLY); |
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if (fd == -1) |
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{ |
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printf ("cannot open '%s': %m\n", argv[cnt]); |
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return 1; |
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} |
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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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return 1; |
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} |
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/* Try to use NULL Dwarf object. */ |
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const char *str = dwarf_getstring (NULL, offset, &len); |
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assert (str == NULL); |
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/* Use insane offset. */ |
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str = dwarf_getstring (dbg, ~0UL, &len); |
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assert (str == NULL); |
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/* Now do some real work. */ |
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for (int i = 0; i < 100; ++i) |
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{ |
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str = dwarf_getstring (dbg, offset, &len); |
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puts (str); |
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/* Advance. */ |
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offset += len + 1; |
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} |
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dwarf_end (dbg); |
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close (fd); |
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} |
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return 0; |
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}
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