* configure.ac (DEBUGDIR_RELOCATABLE): Define for debugdir inside

	exec_prefix.
	(TARGET_SYSTEM_ROOT_RELOCATABLE): Allow for exec_prefix being
	'${prefix}'.
	* configure, config.in: Regenerate.
	* defs.h (debug_file_directory): Declare.
	* main.c (captured_main): Canonicalize gdb_sysroot.  Assume
	TARGET_SYSTEM_ROOT is defined.  Initialize debug_file_directory and
	relocate it if DEBUGDIR_RELOCATABLE.
	* symfile.c (debug_file_directory): Make non-static.
	(find_separate_debug_file): Look for debug info for SYSROOT/PATH
	in DEBUGDIR/PATH if DEBUGDIR is inside SYSROOT.
	(_initialize_symfile): Don't initialize debug_file_directory here.

1 files changed, 47 insertions, 6 deletions

diff --git a/gdb/main.c b/gdb/main.c
index 7e25d77..7cc14ad 100644
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -221,19 +221,60 @@ captured_main (void *data)
       if (res == 0)
 	{
 	  xfree (gdb_sysroot);
-	  gdb_sysroot = TARGET_SYSTEM_ROOT;
+	  gdb_sysroot = xstrdup (TARGET_SYSTEM_ROOT);
 	}
     }
   else
-    gdb_sysroot = TARGET_SYSTEM_ROOT;
+    gdb_sysroot = xstrdup (TARGET_SYSTEM_ROOT);
 #else
-#if defined (TARGET_SYSTEM_ROOT)
-  gdb_sysroot = TARGET_SYSTEM_ROOT;
-#else
-  gdb_sysroot = "";
+  gdb_sysroot = xstrdup (TARGET_SYSTEM_ROOT);
 #endif
+
+  /* Canonicalize the sysroot path.  */
+  if (*gdb_sysroot)
+    {
+      char *canon_sysroot = lrealpath (gdb_sysroot);
+      if (canon_sysroot)
+	{
+	  xfree (gdb_sysroot);
+	  gdb_sysroot = canon_sysroot;
+	}
+    }
+
+#ifdef DEBUGDIR_RELOCATABLE
+  debug_file_directory = make_relative_prefix (argv[0], BINDIR, DEBUGDIR);
+  if (debug_file_directory)
+    {
+      struct stat s;
+      int res = 0;
+
+      if (stat (debug_file_directory, &s) == 0)
+	if (S_ISDIR (s.st_mode))
+	  res = 1;
+
+      if (res == 0)
+	{
+	  xfree (debug_file_directory);
+	  debug_file_directory = xstrdup (DEBUGDIR);
+	}
+    }
+  else
+    debug_file_directory = xstrdup (DEBUGDIR);
+#else
+  debug_file_directory = xstrdup (DEBUGDIR);
 #endif
 
+  /* Canonicalize the debugfile path.  */
+  if (*debug_file_directory)
+    {
+      char *canon_debug = lrealpath (debug_file_directory);
+      if (canon_debug)
+	{
+	  xfree (debug_file_directory);
+	  debug_file_directory = canon_debug;
+	}
+    }
+
   /* There will always be an interpreter.  Either the one passed into
      this captured main, or one specified by the user at start up, or
      the console.  Initialize the interpreter to the one requested by