2011-07-26 Pedro Alves <pedro@codesourcery.com>

	gdb/
	* breakpoint.c (works_in_software_mode_watchpoint): Also return
	true for software watchpoints.

	gdb/testsuite/
	* gdb.base/watchpoint.exp
	(test_disable_enable_software_watchpoint): New procedure.
	(top level): Run it.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a0d3606..96f527b 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2011-07-26  Pedro Alves  <pedro@codesourcery.com>
+
+       * breakpoint.c (works_in_software_mode_watchpoint): Also return
+       true for software watchpoints.
+
 2011-07-26  Joel Brobecker  <brobecker@adacore.com>
 
        GDB 7.3 released.

diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index 5afda31..00fe748 100644 (file)
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -8637,7 +8637,8 @@ resources_needed_watchpoint (const struct bp_location *bl)
 static int
 works_in_software_mode_watchpoint (const struct breakpoint *b)
 {
-  return b->type == bp_hardware_watchpoint;
+  /* Read and access watchpoints only work with hardware support.  */
+  return b->type == bp_watchpoint || b->type == bp_hardware_watchpoint;
 }
 
 static enum print_stop_action

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 1eeeeb2..8011247 100644 (file)
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2011-07-26  Pedro Alves  <pedro@codesourcery.com>
+
+       * gdb.base/watchpoint.exp
+       (test_disable_enable_software_watchpoint): New procedure.
+       (top level): Run it.
+
 2011-07-26  Ulrich Weigand  <ulrich.weigand@linaro.org>
 
        * gdb.python/py-mi.exp: Avoid '+' in filenames.  Call C version of

diff --git a/gdb/testsuite/gdb.base/watchpoint.exp b/gdb/testsuite/gdb.base/watchpoint.exp
index 1d8c5bc..331b181 100644 (file)
--- a/gdb/testsuite/gdb.base/watchpoint.exp
+++ b/gdb/testsuite/gdb.base/watchpoint.exp
@@ -630,6 +630,23 @@ proc test_constant_watchpoint {} {
     gdb_test_no_output "delete \$bpnum" "delete watchpoint `7 + count'"
 }
 
+proc test_disable_enable_software_watchpoint {} {
+    # This is regression test for a bug that caused `enable' to fail
+    # for software watchpoints.
+
+    # Watch something not memory to force a software watchpoint.
+    gdb_test {watch $pc} ".*atchpoint \[0-9\]+: .pc"
+
+    gdb_test_no_output "disable \$bpnum" "disable watchpoint `\$pc'"
+    gdb_test_no_output "enable \$bpnum" "reenable watchpoint `\$pc'"
+
+    gdb_test "info watchpoint \$bpnum" \
+       ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+.pc.*" \
+       "watchpoint `\$pc' is enabled"
+
+    gdb_test_no_output "delete \$bpnum" "delete watchpoint `\$pc'"
+}
+
 proc test_watch_location {} {
     gdb_breakpoint [gdb_get_line_number "func5 breakpoint here"]
     gdb_continue_to_breakpoint "func5 breakpoint here"
@@ -903,6 +920,8 @@ if [initialize] then {
 
     test_constant_watchpoint
 
+    test_disable_enable_software_watchpoint
+
     test_watch_location
 }