1 files changed, 109 insertions, 0 deletions
diff --git a/src/tests/low_high_pc.c b/src/tests/low_high_pc.c
new file mode 100644
index 00000000..d0f43023
--- /dev/null
+++ b/src/tests/low_high_pc.c
@@ -0,0 +1,109 @@
+/* Test program for dwarf_lowpc and dwarf_highpc
+   Copyright (C) 2012 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 ELFUTILS_HEADER(dwfl)
+#include <dwarf.h>
+#include <argp.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <locale.h>
+#include <stdlib.h>
+#include <error.h>
+#include <string.h>
+#include <fnmatch.h>
+
+struct args
+{
+  Dwfl *dwfl;
+  Dwarf_Die *cu;
+  Dwarf_Addr dwbias;
+  char **argv;
+  const char *file;
+};
+
+static struct args *args;
+
+static void
+fail(Dwarf_Off off, const char *name, const char *msg)
+{
+  printf("%s: [%" PRIx64 "] '%s' %s\n", args->file, off, name, msg);
+  exit(-1);
+}
+
+static int
+handle_die (Dwarf_Die *die, void *arg)
+{
+  args = arg;
+  Dwarf_Off off = dwarf_dieoffset (die);
+
+  const char *name = dwarf_diename (die);
+  if (name == NULL)
+    fail (off, "<no name>", "die without a name");
+
+  Dwarf_Addr lowpc = 0;
+  Dwarf_Addr highpc = 0;
+  if (dwarf_lowpc (die, &lowpc) != 0 && dwarf_hasattr (die, DW_AT_low_pc))
+    fail (off, name, "has DW_AT_low_pc but dwarf_lowpc fails");
+  if (dwarf_highpc (die, &highpc) != 0 && dwarf_hasattr (die, DW_AT_high_pc))
+    fail (off, name, "has DW_AT_high_pc but dwarf_highpc fails");
+
+  /* GCC < 4.7 had a bug where no code CUs got a highpc == lowpc.
+     Allow that, because it is not the main purpose of this test.  */
+  if (dwarf_hasattr (die, DW_AT_low_pc)
+      && dwarf_hasattr (die, DW_AT_high_pc)
+      && highpc <= lowpc
+      && ! (dwarf_tag (die) == DW_TAG_compile_unit && highpc == lowpc))
+    {
+      printf("lowpc: %" PRIx64 ", highpc: %" PRIx64 "lx\n", lowpc, highpc);
+      fail (off, name, "highpc <= lowpc");
+    }
+
+  return 0;
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  int remaining;
+
+  /* Set locale.  */
+  (void) setlocale (LC_ALL, "");
+
+  struct args a = { .dwfl = NULL, .cu = NULL };
+
+  (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &remaining,
+		     &a.dwfl);
+  assert (a.dwfl != NULL);
+  a.argv = &argv[remaining];
+
+  int result = 0;
+
+  while ((a.cu = dwfl_nextcu (a.dwfl, a.cu, &a.dwbias)) != NULL)
+    {
+      a.file = dwarf_diename (a.cu);
+      handle_die (a.cu, &a);
+      dwarf_getfuncs (a.cu, &handle_die, &a, 0);
+    }
+
+  dwfl_end (a.dwfl);
+
+  return result;
+}