2013-07-30 Muhammad Bilal <mbilal@codesorcery.com>

        PR gdb/15715
        * top.c: Include "filenames.h".
        (set_history_filename): New function.
        (init_main): Install it as set hook of the "set history filename"
        command.
2013-07-30  Muhammad Bilal  <mbilal@codesourcery.com>

        PR gdb/15715
        * gdb.base/setshow.exp: Test that relative paths passed to
        'set history filename' are converted to absolute paths.

4 files changed, 56 insertions, 3 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 43c2783..825599d 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,11 @@
+2013-07-30  Muhammad Bilal  <mbilal@codesorcery.com>
+
+	PR gdb/15715
+	* top.c: Include "filenames.h".
+	(set_history_filename): New function.
+	(init_main): Install it as set hook of the "set history filename"
+	command.
+
 2013-07-30  Sanimir Agovic  <sanimir.agovic@intel.com>
 
 	* dwarf2read.c (dwarf2_get_ref_die_offset): Constify struct
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 4f51d8e..b90def4 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2013-07-30  Muhammad Bilal  <mbilal@codesourcery.com>
+
+	PR gdb/15715
+	* gdb.base/setshow.exp: Test that relative paths passed to
+	'set history filename' are converted to absolute paths.
+
 2013-07-26  Keith Seitz  <keiths@redhat.com>
 
 	* gdb.mi/mi-var-child-f.exp: Pass f90 to gdb_compile instead
diff --git a/gdb/testsuite/gdb.base/setshow.exp b/gdb/testsuite/gdb.base/setshow.exp
index 661431c..d9e71d3 100644
--- a/gdb/testsuite/gdb.base/setshow.exp
+++ b/gdb/testsuite/gdb.base/setshow.exp
@@ -165,11 +165,38 @@ 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 ""
+set test "show environment HOME"
+gdb_test_multiple $test $test {
+    -re "\nHOME = (.*).\n.*" {
+        set HOME $expect_out(1,string)
+        pass $test
+    }
+}
+#test set history filename ~/foobar.baz
+gdb_test_no_output "set history filename ~/foobar.baz" \
+    "set history filename ~/foobar.baz"
+#test show history filename ~/foobar.baz
+gdb_test "show history filename" \
+    "The filename in which to record the command history is \"$HOME/foobar.baz\"..*" \
+    "show history filename (~/foobar.baz)"
+#get current working directory
+set PWD ""
+set test "show working directory"
+gdb_test_multiple "pwd" $test {
+    -re "\nWorking directory (.*)..\n.*" {
+        set PWD $expect_out(1,string)
+        pass $test
+    }
+}
 #test set history filename foobar.baz
 gdb_test_no_output "set history filename foobar.baz" \
-    "set history filename foobar.baz" 
+    "set history filename foobar.baz"
 #test show history filename foobar.baz
-gdb_test "show history filename" "The filename in which to record the command history is \"foobar.baz\"..*"  "show history filename (foobar.baz)" 
+gdb_test "show history filename" \
+    "The filename in which to record the command history is \"$PWD/foobar.baz\"..*" \
+    "show history filename (current_directory/foobar.baz)"
 #test set history save on
 gdb_test_no_output "set history save on" "set history save on" 
 #test show history save on
diff --git a/gdb/top.c b/gdb/top.c
index 467e6a2..33a78da 100644
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -48,6 +48,7 @@
 #include "interps.h"
 #include "observer.h"
 #include "maint.h"
+#include "filenames.h"
 
 /* readline include files.  */
 #include "readline/readline.h"
@@ -1704,6 +1705,17 @@ set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c)
 }
 
 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
@@ -1779,7 +1791,7 @@ variable \"HISTSIZE\", or to 256 if this variable is not set."),
 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);