2011-05-26 Pedro Alves <pedro@codesourcery.com>

	gdb/
	* infcmd.c (finish_backward): Set a step-resume breakpoint at the
	function's entry point instead of a manually managed momentary
	breakpoint, and only ever issue one proceed call.
	* infrun.c (handle_inferior_event) <BPSTAT_WHAT_STEP_RESUME>: If
	doing a reverse-finish, switch to stepi mode, to do another step.
	(insert_step_resume_breakpoint_at_sal): Make public.
	(normal_stop): No need to save function value return registers if
	going reverse.
	* inferior.h (insert_step_resume_breakpoint_at_sal): Declare.

	gdb/testsuite/
	* gdb.reverse/finish-reverse-bkpt.exp: New test.

1 files changed, 57 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.reverse/finish-reverse-bkpt.exp b/gdb/testsuite/gdb.reverse/finish-reverse-bkpt.exp
new file mode 100644
index 0000000..09f6837
--- /dev/null
+++ b/gdb/testsuite/gdb.reverse/finish-reverse-bkpt.exp
@@ -0,0 +1,57 @@
+# Copyright 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This file is part of the GDB testsuite.
+#
+# 'reverse-finish' used to have a bug where user breakpoints set at
+# the functions entry would be ignored.  Make sure the bug doesn't
+# reappear.
+
+if ![target_info exists gdb,can_reverse] {
+    return
+}
+
+set testfile "finish-reverse-bkpt"
+set srcfile finish-reverse.c
+
+if { [prepare_for_testing $testfile.exp "$testfile" $srcfile] } {
+    return -1
+}
+
+if ![runto_main] then {
+    fail "Can't run to main"
+    return 0
+}
+
+if [target_info exists gdb,use_precord] {
+    # Activate process record/replay
+    gdb_test_no_output "record" "Turn on process record"
+}
+
+set breakloc [gdb_get_line_number "VOID FUNC" "$srcfile"]
+gdb_test "break void_func" \
+    "Breakpoint $decimal at .*/$srcfile, line $breakloc\." \
+    "set breakpoint on void_func"
+gdb_continue_to_breakpoint "void_func" ".*/$srcfile:$breakloc.*"
+
+gdb_test "break \*void_func" \
+    "Breakpoint $decimal at .*" \
+    "set breakpoint at void_func's entry"
+
+gdb_test "reverse-finish" \
+    ".*Breakpoint .*, void_func.*" \
+    "reverse-finish from void_func trips breakpoint at entry"
+
+gdb_test "frame" "#0  void_func.*" "no spurious proceed after breakpoint stop"