Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/tests/buildid.c b/tests/buildid.c
new file mode 100644
index 0000000..87c1877
--- /dev/null
+++ b/tests/buildid.c
@@ -0,0 +1,81 @@
+/* Test program for dwelf_elf_gnu_build_id, print build ID.
+ Copyright (C) 2014 Red Hat, Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+#include <assert.h>
+#include <inttypes.h>
+#include <err.h>
+#include <errno.h>
+#include ELFUTILS_HEADER(elf)
+#include ELFUTILS_HEADER(dwelf)
+#include <stdio.h>
+#include <error.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+int
+main (int argc, char *argv[])
+{
+ if (argc < 2)
+ error (EXIT_FAILURE, 0, "No input file given");
+
+ elf_version (EV_CURRENT);
+
+ for (int i = 1; i < argc; i++)
+ {
+ const char *file = argv[i];
+ int fd = open (file, O_RDONLY);
+ if (fd < 0)
+ error (EXIT_FAILURE, errno, "couldn't open file '%s'", file);
+
+ Elf *elf = elf_begin (fd, ELF_C_READ, NULL);
+ if (elf == NULL)
+ {
+ printf("%s: elf_begin failed: %s\n", file, elf_errmsg (-1));
+ close (fd);
+ continue;
+ }
+
+ const void *build_id;
+ ssize_t len = dwelf_elf_gnu_build_id (elf, &build_id);
+ switch (len)
+ {
+ case 0:
+ printf ("%s: <no NT_GNU_BUILD_ID note>\n", file);
+ break;
+ case -1:
+ errx (1, "dwelf_elf_gnu_build_id (%s): %s",
+ file, elf_errmsg (-1));
+ default:
+ printf ("%s: build ID: ", file);
+ const unsigned char *p = build_id;
+ const unsigned char *end = p + len;
+ while (p < end)
+ printf("%02x", (unsigned)*p++);
+ putchar('\n');
+ }
+
+ elf_end (elf);
+ close (fd);
+ }
+
+ return 0;
+}