Update.

1999-10-07  Ulrich Drepper  <drepper@cygnus.com>

	* debug/Makefile (install-bin): Add pcprofiledump and xtrace.
	Add rules for both programs.
	* debug/pcprofiledump.c: New file.
	* debug/xtrace.sh: New file.
	* debug/pcprofile.c: Allow creating output file.  Add magic signature
	to let reader recognize file format.

1 files changed, 187 insertions, 0 deletions

diff --git a/debug/pcprofiledump.c b/debug/pcprofiledump.c
new file mode 100644
index 0000000..2d20a88
--- /dev/null
+++ b/debug/pcprofiledump.c
@@ -0,0 +1,187 @@
+/* Dump information generating by PC profiling.
+   Copyright (C) 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This is mainly and example.  It shows how programs which want to use
+   the information should read the file.  */
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <argp.h>
+#include <byteswap.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <libintl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "../version.h"
+
+
+#ifndef _
+# define _(Str) gettext (Str)
+#endif
+
+#ifndef N_
+# define N_(Str) Str
+#endif
+
+/* Definitions of arguments for argp functions.  */
+static const struct argp_option options[] =
+{
+  { NULL, 0, NULL, 0, NULL }
+};
+
+/* Short description of program.  */
+static const char doc[] = N_("Dump information generating by PC profiling.");
+
+/* Strings for arguments in help texts.  */
+static const char args_doc[] = N_("[FILE]");
+
+/* Function to print some extra text in the help message.  */
+static char *more_help (int key, const char *text, void *input);
+
+/* Data structure to communicate with argp functions.  */
+static struct argp argp =
+{
+  options, NULL, args_doc, doc, NULL, more_help
+};
+
+
+int
+main (int argc, char *argv[])
+{
+  int fd;
+  int remaining;
+  int must_swap;
+  uint32_t word;
+
+  /* Parse and process arguments.  */
+  argp_parse (&argp, argc, argv, 0, &remaining, NULL);
+
+  if (remaining == argc)
+    fd = STDIN_FILENO;
+  else if (remaining + 1 != argc)
+    {
+      argp_help (&argp, stdout, ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR,
+		 program_invocation_short_name);
+      exit (1);
+    }
+  else
+    {
+      /* Open the given file.  */
+      fd = open (argv[remaining], O_RDONLY);
+
+      if (fd == -1)
+	error (EXIT_FAILURE, errno, _("cannot open input file"));
+    }
+
+  /* Read the first 4-byte word.  It contains the information about
+     the word size and the endianess.  */
+  if (TEMP_FAILURE_RETRY (read (fd, &word, 4)) != 4)
+    error (EXIT_FAILURE, errno, _("cannot read header"));
+
+  /* Check whether we have to swap the byte order.  */
+  must_swap = (word & 0xfffffff0) == bswap_32 (0xdeb00000);
+  if (must_swap)
+    word = bswap_32 (word);
+
+  /* We have two loops, one for 32 bit pointers, one for 64 bit pointers.  */
+  if (word == 0xdeb00004)
+    {
+      union
+      {
+	uint32_t ptrs[2];
+	char bytes[8];
+      } pair;
+
+      while (1)
+	{
+	  size_t len = sizeof (pair);
+	  size_t n;
+
+	  while (len > 0
+		 && (n = TEMP_FAILURE_RETRY (read (fd, &pair.bytes[8 - len],
+						   len))) != 0)
+	    len -= n;
+
+	  if (len != 0)
+	    /* Nothing to read.  */
+	    break;
+
+	  printf ("this = %#010" PRIx32 ", caller = %#010" PRIx32 "\n",
+		  must_swap ? bswap_32 (pair.ptrs[0]) : pair.ptrs[0],
+		  must_swap ? bswap_32 (pair.ptrs[1]) : pair.ptrs[1]);
+	}
+    }
+  else if (word == 0xdeb00008)
+    {
+      union
+      {
+	uint64_t ptrs[2];
+	char bytes[16];
+      } pair;
+
+      while (1)
+	{
+	  size_t len = sizeof (pair);
+	  size_t n;
+
+	  while (len > 0
+		 && (n = TEMP_FAILURE_RETRY (read (fd, &pair.bytes[8 - len],
+						   len))) != 0)
+	    len -= n;
+
+	  if (len != 0)
+	    /* Nothing to read.  */
+	    break;
+
+	  printf ("this = %#018" PRIx64 ", caller = %#018" PRIx64 "\n",
+		  must_swap ? bswap_64 (pair.ptrs[0]) : pair.ptrs[0],
+		  must_swap ? bswap_64 (pair.ptrs[1]) : pair.ptrs[1]);
+	}
+    }
+  else
+    /* This should not happen.  */
+    error (EXIT_FAILURE, 0, _("invalid pointer size"));
+
+  /* Clean up.  */
+  close (fd);
+
+  return 0;
+}
+
+static char *
+more_help (int key, const char *text, void *input)
+{
+  switch (key)
+    {
+    case ARGP_KEY_HELP_EXTRA:
+      /* We print some extra information.  */
+      return strdup (gettext ("\
+Report bugs using the `glibcbug' script to <bugs@gnu.org>.\n"));
+    default:
+      break;
+    }
+  return (char *) text;
+}