- updated (performance fixes).

[packages/gdb.git] / gdb-6.6-buildid-locate-rpm.patch

Index: gdb-7.4.50.20111218/gdb/event-top.c
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/event-top.c	2011-09-21 17:21:28.000000000 +0200
+++ gdb-7.4.50.20111218/gdb/event-top.c	2011-12-19 01:18:56.087539251 +0100
@@ -36,6 +36,7 @@
 #include "observer.h"
 #include "continuations.h"
 #include "gdbcmd.h"		/* for dont_repeat() */
+#include "symfile.h"
 
 /* readline include files.  */
 #include "readline/readline.h"
@@ -176,6 +177,8 @@ rl_callback_read_char_wrapper (gdb_clien
 void
 cli_command_loop (void)
 {
+  debug_flush_missing ();
+
   display_gdb_prompt (0);
 
   /* Now it's time to start the event loop.  */
@@ -241,6 +244,8 @@ display_gdb_prompt (char *new_prompt)
   /* Reset the nesting depth used when trace-commands is set.  */
   reset_command_nest_depth ();
 
+  debug_flush_missing ();
+
   /* Each interpreter has its own rules on displaying the command
      prompt.  */
   if (!current_interp_display_prompt_p ())
Index: gdb-7.4.50.20111218/gdb/elfread.c
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/elfread.c	2011-12-19 00:54:09.000000000 +0100
+++ gdb-7.4.50.20111218/gdb/elfread.c	2011-12-19 01:16:15.248455897 +0100
@@ -47,6 +47,7 @@
 #include "gdbcore.h"
 #include "gdbcmd.h"
 #include "observer.h"
+#include "elf/external.h"
 #include <sys/stat.h>
 
 extern void _initialize_elfread (void);
@@ -1622,8 +1623,361 @@ build_id_to_filename (struct build_id *b
   return retval;
 }
 
+#ifdef HAVE_LIBRPM
+
+#include <rpm/rpmlib.h>
+#include <rpm/rpmts.h>
+#include <rpm/rpmdb.h>
+#include <rpm/header.h>
+#ifdef DLOPEN_LIBRPM
+#include <dlfcn.h>
+#endif
+
+/* This MISSING_RPM_HASH tracker is used to collect all the missing rpm files
+   and avoid their duplicities during a single inferior run.  */
+
+static struct htab *missing_rpm_hash;
+
+/* This MISSING_RPM_LIST tracker is used to collect and print as a single line
+   all the rpms right before the nearest GDB prompt.  It gets cleared after
+   each such print (it is questionable if we should clear it after the print).
+   */
+
+struct missing_rpm
+  {
+    struct missing_rpm *next;
+    char rpm[1];
+  };
+static struct missing_rpm *missing_rpm_list;
+static int missing_rpm_list_entries;
+
+/* Returns the count of newly added rpms.  */
+
+static int
+missing_rpm_enlist (const char *filename)
+{
+  static int rpm_init_done = 0;
+  rpmts ts;
+  rpmdbMatchIterator mi;
+  int count = 0;
+
+#ifdef DLOPEN_LIBRPM
+  /* Duplicate here the declarations to verify they match.  The same sanity
+     check is present also in `configure.ac'.  */
+  extern char * headerFormat(Header h, const char * fmt, errmsg_t * errmsg);
+  static char *(*headerFormat_p) (Header h, const char * fmt, errmsg_t *errmsg);
+  extern int rpmReadConfigFiles(const char * file, const char * target);
+  static int (*rpmReadConfigFiles_p) (const char * file, const char * target);
+  extern rpmdbMatchIterator rpmdbFreeIterator(rpmdbMatchIterator mi);
+  static rpmdbMatchIterator (*rpmdbFreeIterator_p) (rpmdbMatchIterator mi);
+  extern Header rpmdbNextIterator(rpmdbMatchIterator mi);
+  static Header (*rpmdbNextIterator_p) (rpmdbMatchIterator mi);
+  extern rpmts rpmtsCreate(void);
+  static rpmts (*rpmtsCreate_p) (void);
+  extern rpmts rpmtsFree(rpmts ts);
+  static rpmts (*rpmtsFree_p) (rpmts ts);
+  extern rpmdbMatchIterator rpmtsInitIterator(const rpmts ts, rpmTag rpmtag,
+                                              const void * keyp, size_t keylen);
+  static rpmdbMatchIterator (*rpmtsInitIterator_p) (const rpmts ts,
+						    rpmTag rpmtag,
+						    const void *keyp,
+						    size_t keylen);
+#else	/* !DLOPEN_LIBRPM */
+# define headerFormat_p headerFormat
+# define rpmReadConfigFiles_p rpmReadConfigFiles
+# define rpmdbFreeIterator_p rpmdbFreeIterator
+# define rpmdbNextIterator_p rpmdbNextIterator
+# define rpmtsCreate_p rpmtsCreate
+# define rpmtsFree_p rpmtsFree
+# define rpmtsInitIterator_p rpmtsInitIterator
+#endif	/* !DLOPEN_LIBRPM */
+
+  gdb_assert (filename != NULL);
+
+  if (strcmp (filename, BUILD_ID_MAIN_EXECUTABLE_FILENAME) == 0)
+    return 0;
+
+  if (filename[0] != '/')
+    {
+      warning (_("Ignoring non-absolute filename: <%s>"), filename);
+      return 0;
+    }
+
+  if (!rpm_init_done)
+    {
+      static int init_tried;
+
+      /* Already failed the initialization before?  */
+      if (init_tried)
+      	return 0;
+      init_tried = 1;
+
+#ifdef DLOPEN_LIBRPM
+      {
+	void *h;
+
+	h = dlopen (DLOPEN_LIBRPM, RTLD_LAZY);
+	if (!h)
+	  {
+	    warning (_("Unable to open \"%s\" (%s), "
+		      "missing debuginfos notifications will not be displayed"),
+		     DLOPEN_LIBRPM, dlerror ());
+	    return 0;
+	  }
+
+	if (!((headerFormat_p = dlsym (h, "headerFormat"))
+	      && (rpmReadConfigFiles_p = dlsym (h, "rpmReadConfigFiles"))
+	      && (rpmdbFreeIterator_p = dlsym (h, "rpmdbFreeIterator"))
+	      && (rpmdbNextIterator_p = dlsym (h, "rpmdbNextIterator"))
+	      && (rpmtsCreate_p = dlsym (h, "rpmtsCreate"))
+	      && (rpmtsFree_p = dlsym (h, "rpmtsFree"))
+	      && (rpmtsInitIterator_p = dlsym (h, "rpmtsInitIterator"))))
+	  {
+	    warning (_("Opened library \"%s\" is incompatible (%s), "
+		      "missing debuginfos notifications will not be displayed"),
+		     DLOPEN_LIBRPM, dlerror ());
+	    if (dlclose (h))
+	      warning (_("Error closing library \"%s\": %s\n"), DLOPEN_LIBRPM,
+		       dlerror ());
+	    return 0;
+	  }
+      }
+#endif	/* DLOPEN_LIBRPM */
+
+      if (rpmReadConfigFiles_p (NULL, NULL) != 0)
+	{
+	  warning (_("Error reading the rpm configuration files"));
+	  return 0;
+	}
+
+      rpm_init_done = 1;
+    }
+
+  ts = rpmtsCreate_p ();
+
+  mi = rpmtsInitIterator_p (ts, RPMTAG_BASENAMES, filename, 0);
+  if (mi != NULL)
+    {
+      for (;;)
+	{
+	  Header h;
+	  char *debuginfo, **slot, *s, *s2;
+	  errmsg_t err;
+	  size_t srcrpmlen = sizeof (".src.rpm") - 1;
+	  size_t debuginfolen = sizeof ("-debuginfo") - 1;
+	  rpmdbMatchIterator mi_debuginfo;
+
+	  h = rpmdbNextIterator_p (mi);
+	  if (h == NULL)
+	    break;
+
+	  /* Verify the debuginfo file is not already installed.  */
+
+	  debuginfo = headerFormat_p (h, "%{sourcerpm}-debuginfo.%{arch}",
+				      &err);
+	  if (!debuginfo)
+	    {
+	      warning (_("Error querying the rpm file `%s': %s"), filename,
+	               err);
+	      continue;
+	    }
+	  /* s = `.src.rpm-debuginfo.%{arch}' */
+	  s = strrchr (debuginfo, '-') - srcrpmlen;
+	  s2 = NULL;
+	  if (s > debuginfo && memcmp (s, ".src.rpm", srcrpmlen) == 0)
+	    {
+	      /* s2 = `-%{release}.src.rpm-debuginfo.%{arch}' */
+	      s2 = memrchr (debuginfo, '-', s - debuginfo);
+	    }
+	  if (s2)
+	    {
+	      /* s2 = `-%{version}-%{release}.src.rpm-debuginfo.%{arch}' */
+	      s2 = memrchr (debuginfo, '-', s2 - debuginfo);
+	    }
+	  if (!s2)
+	    {
+	      warning (_("Error querying the rpm file `%s': %s"), filename,
+	               debuginfo);
+	      xfree (debuginfo);
+	      continue;
+	    }
+	  /* s = `.src.rpm-debuginfo.%{arch}' */
+	  /* s2 = `-%{version}-%{release}.src.rpm-debuginfo.%{arch}' */
+	  memmove (s2 + debuginfolen, s2, s - s2);
+	  memcpy (s2, "-debuginfo", debuginfolen);
+	  /* s = `XXXX.%{arch}' */
+	  /* strlen ("XXXX") == srcrpmlen + debuginfolen */
+	  /* s2 = `-debuginfo-%{version}-%{release}XX.%{arch}' */
+	  /* strlen ("XX") == srcrpmlen */
+	  memmove (s + debuginfolen, s + srcrpmlen + debuginfolen,
+		   strlen (s + srcrpmlen + debuginfolen) + 1);
+	  /* s = `-debuginfo-%{version}-%{release}.%{arch}' */
+
+	  /* RPMDBI_PACKAGES requires keylen == sizeof (int).  */
+	  /* RPMDBI_LABEL is an interface for NVR-based dbiFindByLabel().  */
+	  mi_debuginfo = rpmtsInitIterator_p (ts, RPMDBI_LABEL, debuginfo, 0);
+	  xfree (debuginfo);
+	  if (mi_debuginfo)
+	    {
+	      rpmdbFreeIterator_p (mi_debuginfo);
+	      count = 0;
+	      break;
+	    }
+
+	  /* The allocated memory gets utilized below for MISSING_RPM_HASH.  */
+	  debuginfo = headerFormat_p (h,
+				      "%{name}-%{version}-%{release}.%{arch}",
+				      &err);
+	  if (!debuginfo)
+	    {
+	      warning (_("Error querying the rpm file `%s': %s"), filename,
+	               err);
+	      continue;
+	    }
+
+	  /* Base package name for `debuginfo-install'.  We do not use the
+	     `yum' command directly as the line
+		 yum --disablerepo='*' --enablerepo='*-debug*' \
+		     install NAME-debuginfo.ARCH
+	     would be more complicated than just:
+		 debuginfo-install NAME-VERSION-RELEASE.ARCH
+	     Do not supply the rpm base name (derived from .src.rpm name) as
+	     debuginfo-install is unable to install the debuginfo package if
+	     the base name PKG binary rpm is not installed while for example
+	     PKG-libs would be installed (RH Bug 467901).
+	     FUTURE: After multiple debuginfo versions simultaneously installed
+	     get supported the support for the VERSION-RELEASE tags handling
+	     may need an update.  */
+
+	  if (missing_rpm_hash == NULL)
+	    {
+	      /* DEL_F is passed NULL as MISSING_RPM_LIST's HTAB_DELETE
+		 should not deallocate the entries.  */
+
+	      missing_rpm_hash = htab_create_alloc (64, htab_hash_string,
+			       (int (*) (const void *, const void *)) streq,
+						    NULL, xcalloc, xfree);
+	    }
+	  slot = (char **) htab_find_slot (missing_rpm_hash, debuginfo, INSERT);
+	  /* XCALLOC never returns NULL.  */
+	  gdb_assert (slot != NULL);
+	  if (*slot == NULL)
+	    {
+	      struct missing_rpm *missing_rpm;
+
+	      *slot = debuginfo;
+
+	      missing_rpm = xmalloc (sizeof (*missing_rpm) + strlen (debuginfo));
+	      strcpy (missing_rpm->rpm, debuginfo);
+	      missing_rpm->next = missing_rpm_list;
+	      missing_rpm_list = missing_rpm;
+	      missing_rpm_list_entries++;
+	    }
+	  else
+	    xfree (debuginfo);
+	  count++;
+	}
+
+      rpmdbFreeIterator_p (mi);
+    }
+
+  rpmtsFree_p (ts);
+
+  return count;
+}
+
+static int
+missing_rpm_list_compar (const char *const *ap, const char *const *bp)
+{
+  return strcoll (*ap, *bp);
+}
+
+/* It returns a NULL-terminated array of strings needing to be FREEd.  It may
+   also return only NULL.  */
+
+static void
+missing_rpm_list_print (void)
+{
+  char **array, **array_iter;
+  struct missing_rpm *list_iter;
+  struct cleanup *cleanups;
+
+  if (missing_rpm_list_entries == 0)
+    return;
+
+  array = xmalloc (sizeof (*array) * missing_rpm_list_entries);
+  cleanups = make_cleanup (xfree, array);
+
+  array_iter = array;
+  for (list_iter = missing_rpm_list; list_iter != NULL;
+       list_iter = list_iter->next)
+    {
+      *array_iter++ = list_iter->rpm;
+    }
+  gdb_assert (array_iter == array + missing_rpm_list_entries);
+
+  qsort (array, missing_rpm_list_entries, sizeof (*array),
+	 (int (*) (const void *, const void *)) missing_rpm_list_compar);
+
+  printf_unfiltered (_("Missing separate debuginfos, use: %s"),
+		     "debuginfo-install");
+  for (array_iter = array; array_iter < array + missing_rpm_list_entries;
+       array_iter++)
+    {
+      putchar_unfiltered (' ');
+      puts_unfiltered (*array_iter);
+    }
+  putchar_unfiltered ('\n');
+
+  while (missing_rpm_list != NULL)
+    {
+      list_iter = missing_rpm_list;
+      missing_rpm_list = list_iter->next;
+      xfree (list_iter);
+    }
+  missing_rpm_list_entries = 0;
+
+  do_cleanups (cleanups);
+}
+
+static void
+missing_rpm_change (void)
+{
+  debug_flush_missing ();
+
+  gdb_assert (missing_rpm_list == NULL);
+  if (missing_rpm_hash != NULL)
+    {
+      htab_delete (missing_rpm_hash);
+      missing_rpm_hash = NULL;
+    }
+}
+
+enum missing_exec
+  {
+    /* Init state.  EXEC_BFD also still could be NULL.  */
+    MISSING_EXEC_NOT_TRIED,
+    /* We saw a non-NULL EXEC_BFD but RPM has no info about it.  */
+    MISSING_EXEC_NOT_FOUND,
+    /* We found EXEC_BFD by RPM and we either have its symbols (either embedded
+       or separate) or the main executable's RPM is now contained in
+       MISSING_RPM_HASH.  */
+    MISSING_EXEC_ENLISTED
+  };
+static enum missing_exec missing_exec = MISSING_EXEC_NOT_TRIED;
+
+#endif	/* HAVE_LIBRPM */
+
+void
+debug_flush_missing (void)
+{
+#ifdef HAVE_LIBRPM
+  missing_rpm_list_print ();
+#endif
+}
+
 /* This MISSING_FILEPAIR_HASH tracker is used only for the duplicite messages
-     Try to install the hash file ...
+     yum --disablerepo='*' --enablerepo='*-debug*' install ...
    avoidance.  */
 
 struct missing_filepair
@@ -1677,11 +2031,17 @@ missing_filepair_change (void)
       /* All their memory came just from missing_filepair_OBSTACK.  */
       missing_filepair_hash = NULL;
     }
+#ifdef HAVE_LIBRPM
+  missing_exec = MISSING_EXEC_NOT_TRIED;
+#endif
 }
 
 static void
 debug_print_executable_changed (void)
 {
+#ifdef HAVE_LIBRPM
+  missing_rpm_change ();
+#endif
   missing_filepair_change ();
 }
 
@@ -1748,14 +2108,35 @@ debug_print_missing (const char *binary,
 
   *slot = missing_filepair;
 
-  /* We do not collect and flush these messages as each such message
-     already requires its own separate lines.  */
+#ifdef HAVE_LIBRPM
+  if (missing_exec == MISSING_EXEC_NOT_TRIED)
+    {
+      char *exec_filename;
 
-  fprintf_unfiltered (gdb_stdlog,
-		      _("Missing separate debuginfo for %s\n"), binary);
-  if (debug != NULL)
-    fprintf_unfiltered (gdb_stdlog, _("Try to install the hash file %s\n"),
-			debug);
+      exec_filename = get_exec_file (0);
+      if (exec_filename != NULL)
+	{
+	  if (missing_rpm_enlist (exec_filename) == 0)
+	    missing_exec = MISSING_EXEC_NOT_FOUND;
+	  else
+	    missing_exec = MISSING_EXEC_ENLISTED;
+	}
+    }
+  if (missing_exec != MISSING_EXEC_ENLISTED)
+    if ((binary[0] == 0 || missing_rpm_enlist (binary) == 0)
+	&& (debug == NULL || missing_rpm_enlist (debug) == 0))
+#endif	/* HAVE_LIBRPM */
+      {
+	/* We do not collect and flush these messages as each such message
+	   already requires its own separate lines.  */
+
+	fprintf_unfiltered (gdb_stdlog,
+			    _("Missing separate debuginfo for %s\n"), binary);
+        if (debug != NULL)
+	  fprintf_unfiltered (gdb_stdlog, _("Try: %s %s\n"),
+			      "yum --disablerepo='*' --enablerepo='*-debug*'"
+			      " install", debug);
+      }
 }
 
 static char *
Index: gdb-7.4.50.20111218/gdb/symfile.h
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/symfile.h	2011-12-19 00:54:09.000000000 +0100
+++ gdb-7.4.50.20111218/gdb/symfile.h	2011-12-19 01:16:15.249455893 +0100
@@ -568,6 +568,8 @@ extern struct build_id *build_id_addr_ge
 extern char *build_id_to_filename (struct build_id *build_id,
 				   char **link_return, int add_debug_suffix);
 extern void debug_print_missing (const char *binary, const char *debug);
+extern void debug_flush_missing (void);
+#define BUILD_ID_MAIN_EXECUTABLE_FILENAME _("the main executable file")
 
 /* From dwarf2read.c */
 
Index: gdb-7.4.50.20111218/gdb/testsuite/lib/gdb.exp
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/testsuite/lib/gdb.exp	2011-12-19 00:54:09.000000000 +0100
+++ gdb-7.4.50.20111218/gdb/testsuite/lib/gdb.exp	2011-12-19 01:16:15.250455889 +0100
@@ -1387,7 +1387,7 @@ proc default_gdb_start { } {
 	    warning "Couldn't set the width to 0."
 	}
     }
-    # Turn off the missing warnings as the testsuite does not expect it.
+    # Turn off the missing RPMs warnings as the testsuite does not expect it.
     send_gdb "set build-id-verbose 0\n"
     gdb_expect 10 {
 	-re "$gdb_prompt $" {
Index: gdb-7.4.50.20111218/gdb/testsuite/lib/mi-support.exp
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/testsuite/lib/mi-support.exp	2011-12-19 00:54:49.000000000 +0100
+++ gdb-7.4.50.20111218/gdb/testsuite/lib/mi-support.exp	2011-12-19 01:20:34.921163977 +0100
@@ -212,7 +212,7 @@ proc default_mi_gdb_start { args } {
 	    warning "Couldn't set the width to 0."
 	}
     }
-    # Turn off the missing warnings as the testsuite does not expect it.
+    # Turn off the missing RPMs warnings as the testsuite does not expect it.
     send_gdb "190-gdb-set build-id-verbose 0\n"
     gdb_expect 10 {
 	-re ".*190-gdb-set build-id-verbose 0\r\n190\\\^done\r\n$mi_gdb_prompt$" {
Index: gdb-7.4.50.20111218/gdb/tui/tui-interp.c
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/tui/tui-interp.c	2011-09-12 23:24:51.000000000 +0200
+++ gdb-7.4.50.20111218/gdb/tui/tui-interp.c	2011-12-19 01:16:15.252455883 +0100
@@ -31,6 +31,7 @@
 #include "tui/tui.h"
 #include "tui/tui-io.h"
 #include "exceptions.h"
+#include "symfile.h"
 
 /* Set to 1 when the TUI mode must be activated when we first start
    gdb.  */
Index: gdb-7.4.50.20111218/gdb/aclocal.m4
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/aclocal.m4	2011-02-15 22:05:53.000000000 +0100
+++ gdb-7.4.50.20111218/gdb/aclocal.m4	2011-12-19 01:16:15.252455883 +0100
@@ -19,6 +19,162 @@ You have another version of autoconf.  I
 If you have problems, you may need to regenerate the build system entirely.
 To do so, use the procedure documented by the package, typically `autoreconf'.])])
 
+# pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
+# 
+# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+#
+# This program 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 2 of the License, or
+# (at your option) any later version.
+#
+# This program 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# PKG_PROG_PKG_CONFIG([MIN-VERSION])
+# ----------------------------------
+AC_DEFUN([PKG_PROG_PKG_CONFIG],
+[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
+m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
+AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=m4_default([$1], [0.9.0])
+	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		AC_MSG_RESULT([yes])
+	else
+		AC_MSG_RESULT([no])
+		PKG_CONFIG=""
+	fi
+		
+fi[]dnl
+])# PKG_PROG_PKG_CONFIG
+
+# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+#
+# Check to see whether a particular set of modules exists.  Similar
+# to PKG_CHECK_MODULES(), but does not set variables or print errors.
+#
+#
+# Similar to PKG_CHECK_MODULES, make sure that the first instance of
+# this or PKG_CHECK_MODULES is called, or make sure to call
+# PKG_CHECK_EXISTS manually
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_EXISTS],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+if test -n "$PKG_CONFIG" && \
+    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
+  m4_ifval([$2], [$2], [:])
+m4_ifvaln([$3], [else
+  $3])dnl
+fi])
+
+
+# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
+# ---------------------------------------------
+m4_define([_PKG_CONFIG],
+[if test -n "$$1"; then
+    pkg_cv_[]$1="$$1"
+ elif test -n "$PKG_CONFIG"; then
+    PKG_CHECK_EXISTS([$3],
+                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
+		     [pkg_failed=yes])
+ else
+    pkg_failed=untried
+fi[]dnl
+])# _PKG_CONFIG
+
+# _PKG_SHORT_ERRORS_SUPPORTED
+# -----------------------------
+AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi[]dnl
+])# _PKG_SHORT_ERRORS_SUPPORTED
+
+
+# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+# [ACTION-IF-NOT-FOUND])
+#
+#
+# Note that if there is a possibility the first call to
+# PKG_CHECK_MODULES might not happen, you should be sure to include an
+# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
+#
+#
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_MODULES],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
+AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
+
+pkg_failed=no
+AC_MSG_CHECKING([for $1])
+
+_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
+_PKG_CONFIG([$1][_LIBS], [libs], [$2])
+
+m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
+and $1[]_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.])
+
+if test $pkg_failed = yes; then
+        _PKG_SHORT_ERRORS_SUPPORTED
+        if test $_pkg_short_errors_supported = yes; then
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1`
+        else 
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+
+	ifelse([$4], , [AC_MSG_ERROR(dnl
+[Package requirements ($2) were not met:
+
+$$1_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+_PKG_TEXT
+])],
+		[AC_MSG_RESULT([no])
+                $4])
+elif test $pkg_failed = untried; then
+	ifelse([$4], , [AC_MSG_FAILURE(dnl
+[The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+_PKG_TEXT
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
+		[$4])
+else
+	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+        AC_MSG_RESULT([yes])
+	ifelse([$3], , :, [$3])
+fi[]dnl
+])# PKG_CHECK_MODULES
+
 # Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
Index: gdb-7.4.50.20111218/gdb/config.in
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/config.in	2011-11-20 09:59:56.000000000 +0100
+++ gdb-7.4.50.20111218/gdb/config.in	2011-12-19 01:16:15.253455879 +0100
@@ -46,6 +46,9 @@
 /* Define to BFD's default target vector. */
 #undef DEFAULT_BFD_VEC
 
+/* librpm version specific library name to dlopen. */
+#undef DLOPEN_LIBRPM
+
 /* Define to 1 if translation of program messages to the user's native
    language is requested. */
 #undef ENABLE_NLS
@@ -233,6 +236,9 @@
 /* Define if Python 2.7 is being used. */
 #undef HAVE_LIBPYTHON2_7
 
+/* Define if librpm library is being used. */
+#undef HAVE_LIBRPM
+
 /* Define if libunwind library is being used. */
 #undef HAVE_LIBUNWIND
 
Index: gdb-7.4.50.20111218/gdb/configure
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/configure	2011-11-20 09:59:56.000000000 +0100
+++ gdb-7.4.50.20111218/gdb/configure	2011-12-19 01:16:15.256455867 +0100
@@ -684,6 +684,9 @@ REPORT_BUGS_TO
 PKGVERSION
 TARGET_OBS
 subdirs
+RPM_LIBS
+RPM_CFLAGS
+PKG_CONFIG
 GDB_DATADIR
 DEBUGDIR
 am__fastdepCC_FALSE
@@ -952,6 +955,7 @@ enable_dependency_tracking
 with_separate_debug_dir
 with_gdb_datadir
 with_relocated_sources
+with_rpm
 enable_targets
 enable_64_bit_bfd
 enable_gdbcli
@@ -995,6 +999,9 @@ LDFLAGS
 LIBS
 CPPFLAGS
 CPP
+PKG_CONFIG
+RPM_CFLAGS
+RPM_LIBS
 YACC
 YFLAGS
 XMKMF'
@@ -1658,6 +1665,8 @@ Optional Packages:
                           [DATADIR/gdb]
   --with-relocated-sources=PATH
                           automatically relocate this path for source files
+  --with-rpm              query rpm database for missing debuginfos (yes/no,
+                          def. auto=librpm.so)
   --with-libunwind        use libunwind frame unwinding support
   --with-curses           use the curses library instead of the termcap
                           library
@@ -1696,6 +1705,9 @@ Some influential environment variables:
   CPPFLAGS    C/C++/Objective C preprocessor flags, e.g. -I<include dir> if
               you have headers in a nonstandard directory <include dir>
   CPP         C preprocessor
+  PKG_CONFIG  path to pkg-config utility
+  RPM_CFLAGS  C compiler flags for RPM, overriding pkg-config
+  RPM_LIBS    linker flags for RPM, overriding pkg-config
   YACC        The `Yet Another C Compiler' implementation to use. Defaults to
               the first program found out of: `bison -y', `byacc', `yacc'.
   YFLAGS      The list of arguments that will be passed by default to $YACC.
@@ -7968,6 +7980,486 @@ _ACEOF
 fi
 
 
+# Integration with rpm library to support missing debuginfo suggestions.
+# --without-rpm: Disable any rpm support.
+# --with-rpm=libname.so: Try to dynamically open `libname.so' during runtime.
+#   Even with runtime missing `libname.so' GDB will still other run correctly.
+#   Missing `libname.so' during ./configure will abort the configuration.
+# --with-rpm=librpm.so: Like `--with-rpm=libname.so' but try to find specific
+#   minor version first such as `librpm-4.6.so' as minor version differences
+#   mean API+ABI incompatibility.  If the specific match versioned library name
+#   could not be found still open dynamically at least `librpm.so'.
+# --with-rpm: Like `--with-rpm=librpm.so' but if any of its detection fails try
+#   to find librpm for compilation-time linking by pkg-config.  GDB binary will
+#   be probably linked with the version specific library (as `librpm-4.6.so').
+#   Failure to find librpm by pkg-config will abort the configuration.
+# (default) --with-rpm=auto: Like `--with-rpm=librpm.so' but if even pkg-config
+#   cannot find librpm use to the rpmless compilation (like `--without-rpm').
+
+
+# Check whether --with-rpm was given.
+if test "${with_rpm+set}" = set; then :
+  withval=$with_rpm;
+else
+  with_rpm="auto"
+fi
+
+
+
+
+if test "x$with_rpm" != "xno"; then
+  if test "x$with_rpm" = "xyes"; then
+    LIBRPM="librpm.so"
+    RPM_REQUIRE=true
+    DLOPEN_REQUIRE=false
+  elif test "x$with_rpm" = "xauto"; then
+    LIBRPM="librpm.so"
+    RPM_REQUIRE=false
+    DLOPEN_REQUIRE=false
+  else
+    LIBRPM="$with_rpm"
+    RPM_REQUIRE=true
+    DLOPEN_REQUIRE=true
+  fi
+  LIBRPM_STRING='"'"$LIBRPM"'"'
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking specific librpm version" >&5
+$as_echo_n "checking specific librpm version... " >&6; }
+  HAVE_DLOPEN_LIBRPM=false
+  save_LIBS="$LIBS"
+  LIBS="$LIBS -ldl"
+  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error "cannot run test program while cross compiling
+See \`config.log' for more details." "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <rpm/rpmlib.h>
+#include <dlfcn.h>
+#include <errno.h>
+
+int
+main ()
+{
+
+    void *h;
+    const char *const *rpmverp;
+    FILE *f;
+
+    f = fopen ("conftest.out", "w");
+    if (!f)
+      {
+	fprintf (stderr, "Cannot write \"%s\": %s\n", "conftest.out",
+		 strerror (errno));
+	return 1;
+      }
+    h = dlopen ($LIBRPM_STRING, RTLD_LAZY);
+    if (!h)
+      {
+	fprintf (stderr, "dlopen (\"%s\"): %s\n", $LIBRPM_STRING, dlerror ());
+	return 1;
+      }
+    rpmverp = dlsym (h, "RPMVERSION");
+    if (!rpmverp)
+      {
+	fprintf (stderr, "dlsym (\"RPMVERSION\"): %s\n", dlerror ());
+	return 1;
+      }
+    fprintf (stderr, "RPMVERSION is: \"");
+    fprintf (stderr, "%s\"\n", *rpmverp);
+
+    /* Try to find the specific librpm version only for "librpm.so" as we do
+       not know how to assemble the version string otherwise.  */
+
+    if (strcmp ("librpm.so", $LIBRPM_STRING) != 0)
+      {
+	fprintf (f, "%s\n", $LIBRPM_STRING);
+	return 0;
+      }
+    else
+      {
+	char *h2_name;
+	void *h2;
+	int major, minor;
+
+	if (sscanf (*rpmverp, "%d.%d", &major, &minor) != 2)
+	  {
+	    fprintf (stderr, "Unable to parse RPMVERSION.\n");
+	    fprintf (f, "%s\n", $LIBRPM_STRING);
+	    return 0;
+	  }
+	/* Avoid the square brackets by malloc.  */
+	h2_name = malloc (64);
+	sprintf (h2_name, "librpm-%d.%d.so", major, minor);
+	h2 = dlopen (h2_name, RTLD_LAZY);
+	if (!h2)
+	  {
+	    fprintf (stderr, "dlopen (\"%s\"): %s\n", h2_name, dlerror ());
+	    fprintf (f, "%s\n", $LIBRPM_STRING);
+	    return 0;
+	  }
+	if (h2 != h)
+	  {
+	    fprintf (stderr, "dlopen of \"%s\" and \"%s\" are different.\n",
+		     $LIBRPM_STRING, h2_name);
+	    fprintf (f, "%s\n", $LIBRPM_STRING);
+	    return 0;
+	  }
+	/* Found the valid .so name with a specific version.  */
+	fprintf (f, "%s\n", h2_name);
+	return 0;
+      }
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+    DLOPEN_LIBRPM="`cat conftest.out`"
+    if test "x$DLOPEN_LIBRPM" != "x"; then
+      HAVE_DLOPEN_LIBRPM=true
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLOPEN_LIBRPM" >&5
+$as_echo "$DLOPEN_LIBRPM" >&6; }
+    fi
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+  rm -f conftest.out
+
+
+
+  if $HAVE_DLOPEN_LIBRPM; then
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking rpm library API compatibility" >&5
+$as_echo_n "checking rpm library API compatibility... " >&6; }
+    # The compilation requires -Werror to verify anything.
+    save_CFLAGS="$CFLAGS"
+    CFLAGS="$CFLAGS -Werror"
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Duplicate here the declarations to verify they match "elfread.c".  */
+#include <rpm/rpmlib.h>
+#include <rpm/rpmts.h>
+#include <rpm/rpmdb.h>
+#include <rpm/header.h>
+extern char * headerFormat(Header h, const char * fmt, errmsg_t * errmsg);
+extern int rpmReadConfigFiles(const char * file, const char * target);
+extern rpmdbMatchIterator rpmdbFreeIterator(rpmdbMatchIterator mi);
+extern Header rpmdbNextIterator(rpmdbMatchIterator mi);
+extern rpmts rpmtsCreate(void);
+extern rpmts rpmtsFree(rpmts ts);
+extern rpmdbMatchIterator rpmtsInitIterator(const rpmts ts, rpmTag rpmtag,
+					    const void * keyp, size_t keylen);
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+      LIBRPM_COMPAT=true
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+      LIBRPM_COMPAT=false
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    CFLAGS="$save_CFLAGS"
+
+    if ! $LIBRPM_COMPAT; then
+      HAVE_DLOPEN_LIBRPM=false
+    fi
+  fi
+
+  if $HAVE_DLOPEN_LIBRPM; then
+    DLOPEN_LIBRPM_STRING='"'"$DLOPEN_LIBRPM"'"'
+
+cat >>confdefs.h <<_ACEOF
+#define DLOPEN_LIBRPM $DLOPEN_LIBRPM_STRING
+_ACEOF
+
+
+$as_echo "#define HAVE_LIBRPM 1" >>confdefs.h
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    LIBS="$save_LIBS"
+    if $DLOPEN_REQUIRE; then
+      as_fn_error "Specific name $LIBRPM was requested but it could not be opened." "$LINENO" 5
+    fi
+
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKG_CONFIG=$ac_cv_path_PKG_CONFIG
+if test -n "$PKG_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+$as_echo "$PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKG_CONFIG"; then
+  ac_pt_PKG_CONFIG=$PKG_CONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $ac_pt_PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
+if test -n "$ac_pt_PKG_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
+$as_echo "$ac_pt_PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKG_CONFIG" = x; then
+    PKG_CONFIG=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKG_CONFIG=$ac_pt_PKG_CONFIG
+  fi
+else
+  PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
+fi
+
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=0.9.0
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
+$as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; }
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	else
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+		PKG_CONFIG=""
+	fi
+
+fi
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for RPM" >&5
+$as_echo_n "checking for RPM... " >&6; }
+
+if test -n "$RPM_CFLAGS"; then
+    pkg_cv_RPM_CFLAGS="$RPM_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"rpm\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "rpm") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_RPM_CFLAGS=`$PKG_CONFIG --cflags "rpm" 2>/dev/null`
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$RPM_LIBS"; then
+    pkg_cv_RPM_LIBS="$RPM_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"rpm\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "rpm") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_RPM_LIBS=`$PKG_CONFIG --libs "rpm" 2>/dev/null`
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        RPM_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "rpm" 2>&1`
+        else
+	        RPM_PKG_ERRORS=`$PKG_CONFIG --print-errors "rpm" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$RPM_PKG_ERRORS" >&5
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+                HAVE_LIBRPM=false
+elif test $pkg_failed = untried; then
+	HAVE_LIBRPM=false
+else
+	RPM_CFLAGS=$pkg_cv_RPM_CFLAGS
+	RPM_LIBS=$pkg_cv_RPM_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	HAVE_LIBRPM=true
+fi
+
+    if $HAVE_LIBRPM; then
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking rpm library API compatibility" >&5
+$as_echo_n "checking rpm library API compatibility... " >&6; }
+    # The compilation requires -Werror to verify anything.
+    save_CFLAGS="$CFLAGS"
+    CFLAGS="$CFLAGS -Werror"
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Duplicate here the declarations to verify they match "elfread.c".  */
+#include <rpm/rpmlib.h>
+#include <rpm/rpmts.h>
+#include <rpm/rpmdb.h>
+#include <rpm/header.h>
+extern char * headerFormat(Header h, const char * fmt, errmsg_t * errmsg);
+extern int rpmReadConfigFiles(const char * file, const char * target);
+extern rpmdbMatchIterator rpmdbFreeIterator(rpmdbMatchIterator mi);
+extern Header rpmdbNextIterator(rpmdbMatchIterator mi);
+extern rpmts rpmtsCreate(void);
+extern rpmts rpmtsFree(rpmts ts);
+extern rpmdbMatchIterator rpmtsInitIterator(const rpmts ts, rpmTag rpmtag,
+					    const void * keyp, size_t keylen);
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+      LIBRPM_COMPAT=true
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+      LIBRPM_COMPAT=false
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    CFLAGS="$save_CFLAGS"
+
+      if ! $LIBRPM_COMPAT; then
+	HAVE_LIBRPM=false
+	RPM_PKG_ERRORS="Found $LIBRPM API is incompatibile with this GDB"
+      fi
+    fi
+
+    if $HAVE_LIBRPM; then
+
+$as_echo "#define HAVE_LIBRPM 1" >>confdefs.h
+
+      CFLAGS="$CFLAGS $RPM_CFLAGS"
+      LIBS="$LIBS $RPM_LIBS"
+    else
+      if $RPM_REQUIRE; then
+	as_fn_error "$RPM_PKG_ERRORS" "$LINENO" 5
+      else
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $RPM_PKG_ERRORS" >&5
+$as_echo "$as_me: WARNING: $RPM_PKG_ERRORS" >&2;}
+      fi
+    fi
+  fi
+fi
+
 
 
 subdirs="$subdirs testsuite"
Index: gdb-7.4.50.20111218/gdb/configure.ac
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/configure.ac	2011-11-20 09:59:56.000000000 +0100
+++ gdb-7.4.50.20111218/gdb/configure.ac	2011-12-19 01:16:15.257455863 +0100
@@ -140,6 +140,199 @@ AS_HELP_STRING([--with-relocated-sources
               [Relocated directory for source files. ])
 ])
 
+# Integration with rpm library to support missing debuginfo suggestions.
+# --without-rpm: Disable any rpm support.
+# --with-rpm=libname.so: Try to dynamically open `libname.so' during runtime.
+#   Even with runtime missing `libname.so' GDB will still other run correctly.
+#   Missing `libname.so' during ./configure will abort the configuration.
+# --with-rpm=librpm.so: Like `--with-rpm=libname.so' but try to find specific
+#   minor version first such as `librpm-4.6.so' as minor version differences
+#   mean API+ABI incompatibility.  If the specific match versioned library name
+#   could not be found still open dynamically at least `librpm.so'.
+# --with-rpm: Like `--with-rpm=librpm.so' but if any of its detection fails try
+#   to find librpm for compilation-time linking by pkg-config.  GDB binary will
+#   be probably linked with the version specific library (as `librpm-4.6.so').
+#   Failure to find librpm by pkg-config will abort the configuration.
+# (default) --with-rpm=auto: Like `--with-rpm=librpm.so' but if even pkg-config
+#   cannot find librpm use to the rpmless compilation (like `--without-rpm').
+
+AC_ARG_WITH([rpm],
+  [AS_HELP_STRING([--with-rpm],
+                  [query rpm database for missing debuginfos (yes/no, def. auto=librpm.so)])], [], [with_rpm="auto"])
+
+m4_pattern_allow([^AC_MSG_ERROR$])
+m4_pattern_allow([^AC_MSG_WARN$])
+if test "x$with_rpm" != "xno"; then
+  if test "x$with_rpm" = "xyes"; then
+    LIBRPM="librpm.so"
+    RPM_REQUIRE=true
+    DLOPEN_REQUIRE=false
+  elif test "x$with_rpm" = "xauto"; then
+    LIBRPM="librpm.so"
+    RPM_REQUIRE=false
+    DLOPEN_REQUIRE=false
+  else
+    LIBRPM="$with_rpm"
+    RPM_REQUIRE=true
+    DLOPEN_REQUIRE=true
+  fi
+  LIBRPM_STRING='"'"$LIBRPM"'"'
+
+  AC_MSG_CHECKING([specific librpm version])
+  HAVE_DLOPEN_LIBRPM=false
+  save_LIBS="$LIBS"
+  LIBS="$LIBS -ldl"
+  AC_RUN_IFELSE(AC_LANG_PROGRAM([[
+#include <rpm/rpmlib.h>
+#include <dlfcn.h>
+#include <errno.h>
+  ]], [[
+    void *h;
+    const char *const *rpmverp;
+    FILE *f;
+
+    f = fopen ("conftest.out", "w");
+    if (!f)
+      {
+	fprintf (stderr, "Cannot write \"%s\": %s\n", "conftest.out",
+		 strerror (errno));
+	return 1;
+      }
+    h = dlopen ($LIBRPM_STRING, RTLD_LAZY);
+    if (!h)
+      {
+	fprintf (stderr, "dlopen (\"%s\"): %s\n", $LIBRPM_STRING, dlerror ());
+	return 1;
+      }
+    rpmverp = dlsym (h, "RPMVERSION");
+    if (!rpmverp)
+      {
+	fprintf (stderr, "dlsym (\"RPMVERSION\"): %s\n", dlerror ());
+	return 1;
+      }
+    fprintf (stderr, "RPMVERSION is: \"");
+    fprintf (stderr, "%s\"\n", *rpmverp);
+
+    /* Try to find the specific librpm version only for "librpm.so" as we do
+       not know how to assemble the version string otherwise.  */
+
+    if (strcmp ("librpm.so", $LIBRPM_STRING) != 0)
+      {
+	fprintf (f, "%s\n", $LIBRPM_STRING);
+	return 0;
+      }
+    else
+      {
+	char *h2_name;
+	void *h2;
+	int major, minor;
+
+	if (sscanf (*rpmverp, "%d.%d", &major, &minor) != 2)
+	  {
+	    fprintf (stderr, "Unable to parse RPMVERSION.\n");
+	    fprintf (f, "%s\n", $LIBRPM_STRING);
+	    return 0;
+	  }
+	/* Avoid the square brackets by malloc.  */
+	h2_name = malloc (64);
+	sprintf (h2_name, "librpm-%d.%d.so", major, minor);
+	h2 = dlopen (h2_name, RTLD_LAZY);
+	if (!h2)
+	  {
+	    fprintf (stderr, "dlopen (\"%s\"): %s\n", h2_name, dlerror ());
+	    fprintf (f, "%s\n", $LIBRPM_STRING);
+	    return 0;
+	  }
+	if (h2 != h)
+	  {
+	    fprintf (stderr, "dlopen of \"%s\" and \"%s\" are different.\n",
+		     $LIBRPM_STRING, h2_name);
+	    fprintf (f, "%s\n", $LIBRPM_STRING);
+	    return 0;
+	  }
+	/* Found the valid .so name with a specific version.  */
+	fprintf (f, "%s\n", h2_name);
+	return 0;
+      }
+  ]]), [
+    DLOPEN_LIBRPM="`cat conftest.out`"
+    if test "x$DLOPEN_LIBRPM" != "x"; then
+      HAVE_DLOPEN_LIBRPM=true
+      AC_MSG_RESULT($DLOPEN_LIBRPM)
+    fi
+  ])
+  rm -f conftest.out
+
+  m4_define([CHECK_LIBRPM_COMPAT], [
+    AC_MSG_CHECKING([rpm library API compatibility])
+    # The compilation requires -Werror to verify anything.
+    save_CFLAGS="$CFLAGS"
+    CFLAGS="$CFLAGS -Werror"
+    AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[
+/* Duplicate here the declarations to verify they match "elfread.c".  */
+#include <rpm/rpmlib.h>
+#include <rpm/rpmts.h>
+#include <rpm/rpmdb.h>
+#include <rpm/header.h>
+extern char * headerFormat(Header h, const char * fmt, errmsg_t * errmsg);
+extern int rpmReadConfigFiles(const char * file, const char * target);
+extern rpmdbMatchIterator rpmdbFreeIterator(rpmdbMatchIterator mi);
+extern Header rpmdbNextIterator(rpmdbMatchIterator mi);
+extern rpmts rpmtsCreate(void);
+extern rpmts rpmtsFree(rpmts ts);
+extern rpmdbMatchIterator rpmtsInitIterator(const rpmts ts, rpmTag rpmtag,
+					    const void * keyp, size_t keylen);
+    ]]), [
+      LIBRPM_COMPAT=true
+      AC_MSG_RESULT(yes)
+    ], [
+      LIBRPM_COMPAT=false
+      AC_MSG_RESULT(no)
+    ])
+    CFLAGS="$save_CFLAGS"
+  ])
+
+  if $HAVE_DLOPEN_LIBRPM; then
+    CHECK_LIBRPM_COMPAT
+    if ! $LIBRPM_COMPAT; then
+      HAVE_DLOPEN_LIBRPM=false
+    fi
+  fi
+
+  if $HAVE_DLOPEN_LIBRPM; then
+    DLOPEN_LIBRPM_STRING='"'"$DLOPEN_LIBRPM"'"'
+    AC_DEFINE_UNQUOTED(DLOPEN_LIBRPM, $DLOPEN_LIBRPM_STRING, [librpm version specific library name to dlopen.])
+    AC_DEFINE(HAVE_LIBRPM, 1, [Define if librpm library is being used.])
+  else
+    AC_MSG_RESULT(no)
+    LIBS="$save_LIBS"
+    if $DLOPEN_REQUIRE; then
+      AC_MSG_ERROR([Specific name $LIBRPM was requested but it could not be opened.])
+    fi
+    PKG_CHECK_MODULES(RPM, rpm, [HAVE_LIBRPM=true], [HAVE_LIBRPM=false])
+
+    if $HAVE_LIBRPM; then
+      CHECK_LIBRPM_COMPAT
+      if ! $LIBRPM_COMPAT; then
+	HAVE_LIBRPM=false
+	RPM_PKG_ERRORS="Found $LIBRPM API is incompatibile with this GDB"
+      fi
+    fi
+
+    if $HAVE_LIBRPM; then
+      AC_DEFINE(HAVE_LIBRPM, 1, [Define if librpm library is being used.])
+      CFLAGS="$CFLAGS $RPM_CFLAGS"
+      LIBS="$LIBS $RPM_LIBS"
+    else
+      if $RPM_REQUIRE; then
+	AC_MSG_ERROR($RPM_PKG_ERRORS)
+      else
+	AC_MSG_WARN($RPM_PKG_ERRORS)
+      fi
+    fi
+  fi
+fi
+ 
 AC_CONFIG_SUBDIRS(testsuite)
 
 # Check whether to support alternative target configurations
Index: gdb-7.4.50.20111218/gdb/acinclude.m4
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/acinclude.m4	2010-05-27 05:40:45.000000000 +0200
+++ gdb-7.4.50.20111218/gdb/acinclude.m4	2011-12-19 01:16:15.257455863 +0100
@@ -1,3 +1,5 @@
+# serial 1
+
 dnl written by Rob Savoye <rob@cygnus.com> for Cygnus Support
 dnl major rewriting for Tcl 7.5 by Don Libes <libes@nist.gov>
 
@@ -81,8 +83,6 @@ AC_MSG_RESULT(yes)
 # Foundation, Inc., 51 Franklin Street, Fifth Floor,
 # Boston, MA 02110-1301, USA.
 
-# serial 1
-
 # @defmac AC_PROG_CC_STDC
 # @maindex PROG_CC_STDC
 # @ovindex CC
Index: gdb-7.4.50.20111218/gdb/corelow.c
===================================================================
--- gdb-7.4.50.20111218.orig/gdb/corelow.c	2011-12-19 00:54:09.000000000 +0100
+++ gdb-7.4.50.20111218/gdb/corelow.c	2011-12-19 01:16:15.258455859 +0100
@@ -321,7 +321,7 @@ build_id_locate_exec (int from_tty)
         symfile_objfile->flags |= OBJF_BUILD_ID_CORE_LOADED;
     }
   else
-    debug_print_missing (_("the main executable file"), build_id_filename);
+    debug_print_missing (BUILD_ID_MAIN_EXECUTABLE_FILENAME, build_id_filename);
 
   do_cleanups (back_to);