record-btrace: extend unwinder

[deliverable/binutils-gdb.git] / gdb / utils.c

diff --git a/gdb/utils.c b/gdb/utils.c
index 198675827a2865df6406b3116732d8d9a8b3e51e..e062e89801c33533fdf3a0b3cfdb6f46be04d61b 100644 (file)
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -1,6 +1,6 @@
 /* General utility routines for GDB, the GNU debugger.
 
-   Copyright (C) 1986-2013 Free Software Foundation, Inc.
+   Copyright (C) 1986-2014 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -21,7 +21,7 @@
 #include "dyn-string.h"
 #include "gdb_assert.h"
 #include <ctype.h>
-#include "gdb_string.h"
+#include <string.h>
 #include "gdb_wait.h"
 #include "event-top.h"
 #include "exceptions.h"
@@ -3274,6 +3274,32 @@ gdb_realpath_keepfile (const char *filename)
   return result;
 }
 
+/* Return PATH in absolute form, performing tilde-expansion if necessary.
+   PATH cannot be NULL or the empty string.
+   This does not resolve symlinks however, use gdb_realpath for that.
+   Space for the result is allocated with malloc.
+   If the path is already absolute, it is strdup'd.
+   If there is a problem computing the absolute path, the path is returned
+   unchanged (still strdup'd).  */
+
+char *
+gdb_abspath (const char *path)
+{
+  gdb_assert (path != NULL && path[0] != '\0');
+
+  if (path[0] == '~')
+    return tilde_expand (path);
+
+  if (IS_ABSOLUTE_PATH (path))
+    return xstrdup (path);
+
+  /* Beware the // my son, the Emacs barfs, the botch that catch...  */
+  return concat (current_directory,
+           IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])
+                ? "" : SLASH_STRING,
+                path, (char *) NULL);
+}
+
 ULONGEST
 align_up (ULONGEST v, int n)
 {