[PATCH PR gdb/15715] 'set history filename' to by immediately converted to absolute path.

["Bilal, Muhammad" <Muhammad_Bilal at mentor dot com>]

Hi,

Please find attached updated patch with new PR in gdb bugzilla.
A workaround for this patch has been discussed here, 
http://sourceware.org/ml/gdb-patches/2013-05/msg00852.html





gdb/ChangeLog 
2013-07-13  Muhammad Bilal  <mbilal@codesorcery.com>

    PR gdb/15715
    * top.c (set_history_filename): New function.
    Converted history filename path to its absolute path.

gdb/testsuite/ChangeLog
2013-07-13  Muhammad Bilal  <mbilal@codesourcery.com>

    PR gdb/15715
    * gdb.base/setshow.exp: Test 'set history filename' command
    to check its absolute path.



Thanks,

-Bilal







Index: gdb/top.c
===================================================================
RCS file: /cvs/src/src/gdb/top.c,v
retrieving revision 1.238
diff -u -p -r1.238 top.c
--- gdb/top.c	6 Jul 2013 07:34:48 -0000	1.238
+++ gdb/top.c	12 Jul 2013 10:43:04 -0000
@@ -48,6 +48,7 @@
 #include "interps.h"
 #include "observer.h"
 #include "maint.h"
+#include "filenames.h"
 
 /* readline include files.  */
 #include "readline/readline.h"
@@ -1698,6 +1699,17 @@ set_gdb_datadir (char *args, int from_tt
 }
 
 static void
+set_history_filename (char *args, int from_tty, struct cmd_list_element *c)
+{
+  /*We include the current directory so that if the user changes    
+    directories the file written will be the same as the one 
+    that was read.  */
+  if (!IS_ABSOLUTE_PATH (history_filename))
+    history_filename = reconcat (history_filename ,current_directory, "/", history_filename,
+				 (char *) NULL);
+}
+
+static void
 init_main (void)
 {
   /* Initialize the prompt to a simple "(gdb) " prompt or to whatever
@@ -1773,7 +1785,7 @@ variable \"HISTSIZE\", or to 256 if this
 Set the filename in which to record the command history"), _("\
 Show the filename in which to record the command history"), _("\
 (the list of previous commands of which a record is kept)."),
-			    NULL,
+			    set_history_filename,
 			    show_history_filename,
 			    &sethistlist, &showhistlist);
Index: gdb/testsuite/gdb.base/setshow.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/setshow.exp,v
retrieving revision 1.33
diff -u -p -r1.33 setshow.exp
--- gdb/testsuite/gdb.base/setshow.exp	27 Jun 2013 18:58:28 -0000	1.33
+++ gdb/testsuite/gdb.base/setshow.exp	12 Jul 2013 10:44:36 -0000
@@ -165,11 +165,36 @@ gdb_test_no_output "set height unlimited
 gdb_test_no_output "set history expansion on" "set history expansion on" 
 #test show history expansion on
 gdb_test "show history expansion on" "History expansion on command input is on.*" "show history expansion" 
+#get home directory path
+set HOME ""
+gdb_test_multiple "show environment HOME" "show home directory" {
+    -re "\nHOME = (.*).\n.*" {
+        set HOME $expect_out(1,string)
+        pass "show home directory"
+    }
+}
+#test set history filename ~/foobar.baz
+gdb_test_no_output "set history filename ~/foobar.baz" \
+    "set history filename ~/foobar.baz"
+#test show history filename ~/foobar.baz
+gdb_test "show history filename" \
+    "The filename in which to record the command history is \"$HOME/foobar.baz\"..*" \
+    "show history filename $HOME/foobar.baz"
+#get current working directory
+set PWD ""
+gdb_test_multiple "pwd" "show working directory" {
+    -re "\nWorking directory (.*)..\n.*" {
+        set PWD $expect_out(1,string)
+        pass "show working directory"
+    }
+}
 #test set history filename foobar.baz
 gdb_test_no_output "set history filename foobar.baz" \
-    "set history filename foobar.baz" 
+    "set history filename foobar.baz"
 #test show history filename foobar.baz
-gdb_test "show history filename" "The filename in which to record the command history is \"foobar.baz\"..*"  "show history filename (foobar.baz)" 
+gdb_test "show history filename" \
+    "The filename in which to record the command history is \"$PWD/foobar.baz\"..*" \
+    "show history filename $PWD\foobar.baz"
 #test set history save on
 gdb_test_no_output "set history save on" "set history save on" 
 #test show history save on