103 lines
3.0 KiB
C
103 lines
3.0 KiB
C
/* Test program for dwfl_report_offline_memory.
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Copyright (C) 2022 Google LLC
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This file is part of elfutils.
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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 <assert.h>
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#include <fcntl.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdio_ext.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include ELFUTILS_HEADER(dwfl)
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#include "system.h"
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static const Dwfl_Callbacks offline_callbacks =
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{
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.find_debuginfo = INTUSE(dwfl_standard_find_debuginfo),
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.section_address = INTUSE(dwfl_offline_section_address),
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};
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static int
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count_modules (Dwfl_Module *mod __attribute__ ((unused)),
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void **userdata __attribute__ ((unused)),
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const char *name __attribute__ ((unused)),
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Dwarf_Addr base __attribute__ ((unused)), void *arg)
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{
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unsigned long long *counter = arg;
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++(*counter);
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return DWARF_CB_OK;
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}
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int
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main (int argc, char **argv)
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{
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/* We use no threads here which can interfere with handling a stream. */
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(void) __fsetlocking (stdout, FSETLOCKING_BYCALLER);
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/* Set locale. */
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(void) setlocale (LC_ALL, "");
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if (argc != 3)
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error (-1, 0,
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"usage: dwfl_report_offline_memory [filename] "
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"[expected number of modules]");
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const char *fname = argv[1];
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int fd = open (fname, O_RDONLY);
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if (fd < 0)
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error (-1, 0, "can't open file %s: %s", fname, strerror (errno));
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off_t size = lseek (fd, 0, SEEK_END);
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if (size < 0)
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error (-1, 0, "can't lseek file %s: %s", fname, strerror (errno));
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lseek (fd, 0, SEEK_SET);
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char *data = malloc (size);
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if (data == NULL)
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error (-1, 0, "can't malloc: %s", strerror (errno));
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ssize_t bytes_read = read (fd, data, size);
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assert (bytes_read == size);
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close (fd);
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Dwfl *dwfl = dwfl_begin (&offline_callbacks);
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assert (dwfl != NULL);
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Dwfl_Module *mod =
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dwfl_report_offline_memory (dwfl, argv[1], argv[1], data, size);
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assert (mod != NULL);
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dwfl_report_end (dwfl, NULL, NULL);
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unsigned long long number_of_modules = 0;
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ptrdiff_t offset =
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dwfl_getmodules (dwfl, &count_modules, &number_of_modules, 0);
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if (offset < 0)
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error (1, 0, "dwfl_getmodules: %s", dwfl_errmsg (-1));
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assert (offset == 0);
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char *endptr;
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unsigned long long expected_number_of_modules =
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strtoull (argv[2], &endptr, 0);
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assert (endptr && !*endptr);
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assert (number_of_modules == expected_number_of_modules);
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dwfl_end (dwfl);
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free (data);
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return 0;
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}
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