[PATCH] suppress weird gcov filename handling

[Tristan Gingold <gingold at adacore dot com>]

Hi,

currently if gcov is invoked like:

$ gcov path/to/file.gcda

it will try to open file.gcda and file.gcno instead of path/to/file. 
{gcda,gcno}.
This is slightly annoying as you can't use easily gcov with wilcard, eg:

$ gcov dir1/*.gcda dir2/*.gcda

This patch changes current gcov behaviour: full filenames are used  
instead of basenames.
(the old behaviour was not documented in the user manual).

Reg-tested on x86-64 linux.

Tristan.

2008-08-20  Tristan Gingold  <gingold@adacore.com>

	* gcov.c (create_file_names): If no object directory is specified,
	keep directories of file_name.

--- gcc/gcov.c	(revision 139223)
+++ gcc/gcov.c	(working copy)
@@ -625,7 +628,7 @@

 /* Generate the names of the graph and data files. If OBJECT_DIRECTORY
    is not specified, these are looked for in the current directory,
-   and named from the basename of the FILE_NAME sans extension. If
+   and named from the FILE_NAME sans extension. If
    OBJECT_DIRECTORY is specified and is a directory, the files are in
    that directory, but named from the basename of the FILE_NAME, sans
    extension. Otherwise OBJECT_DIRECTORY is taken to be the name of
@@ -664,8 +667,8 @@
   else
     {
       name = XNEWVEC (char, length + 1);
-      name[0] = 0;
-      base = 1;
+      strcpy (name, file_name);
+      base = 0;
     }

   if (base)