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authorMarkus Metzger <markus.t.metzger@intel.com>2013-05-06 16:04:46 +0200
committerMarkus Metzger <markus.t.metzger@intel.com>2014-01-16 13:14:12 +0100
commit52834460bc1e8813c8cedd876dac7156b34fa60f (patch)
tree9ed83f5c20d5e1704354f07ae709bb5b94a5650c /gdb/testsuite/gdb.btrace/tailcall.exp
parent118e6252ca1cabce6d4480a4f24c53e5456a2cfa (diff)
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record-btrace: add (reverse-)stepping support
Provide to_resume and to_wait target methods for the btrace record target to allow reverse stepping and replay support. Replay is limited in the sense that only stepping and source correlation are supported. We do not record data and thus can not show variables. Non-stop mode is not working. Do not allow record-btrace in non-stop mode. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * btrace.h (btrace_thread_flag): New. (struct btrace_thread_info) <flags>: New. * record-btrace.c (record_btrace_resume_thread) (record_btrace_find_thread_to_move, btrace_step_no_history) (btrace_step_stopped, record_btrace_start_replaying) (record_btrace_step_thread, record_btrace_decr_pc_after_break) (record_btrace_find_resume_thread): New. (record_btrace_resume, record_btrace_wait): Extend. (record_btrace_can_execute_reverse): New. (record_btrace_open): Fail in non-stop mode. (record_btrace_set_replay): Split into this, ... (record_btrace_stop_replaying): ... this, ... (record_btrace_clear_histories): ... and this. (init_record_btrace_ops): Init to_can_execute_reverse. * NEWS: Announce it. testsuite/ * gdb.btrace/delta.exp: Check reverse stepi. * gdb.btrace/tailcall.exp: Update. Add stepping tests. * gdb.btrace/finish.exp: New. * gdb.btrace/next.exp: New. * gdb.btrace/nexti.exp: New. * gdb.btrace/record_goto.c: Add comments. * gdb.btrace/step.exp: New. * gdb.btrace/stepi.exp: New. * gdb.btrace/multi-thread-step.c: New. * gdb.btrace/multi-thread-step.exp: New. * gdb.btrace/rn-dl-bind.c: New. * gdb.btrace/rn-dl-bind.exp: New. * gdb.btrace/data.c: New. * gdb.btrace/data.exp: New. * gdb.btrace/Makefile.in (EXECUTABLES): Add new. doc/ * gdb.texinfo: Document limited reverse/replay support for target record-btrace.
Diffstat (limited to 'gdb/testsuite/gdb.btrace/tailcall.exp')
-rw-r--r--gdb/testsuite/gdb.btrace/tailcall.exp13
1 files changed, 13 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.btrace/tailcall.exp b/gdb/testsuite/gdb.btrace/tailcall.exp
index 23988f2..ce1f053 100644
--- a/gdb/testsuite/gdb.btrace/tailcall.exp
+++ b/gdb/testsuite/gdb.btrace/tailcall.exp
@@ -77,3 +77,16 @@ gdb_test "backtrace" [join [list \
# walk the backtrace
gdb_test "up" "#1\[^\r\n\]*foo \\(\\) at x86-tailcall.c:29\r\n.*" "up to foo"
gdb_test "up" "#2\[^\r\n\]*main \\(\\) at x86-tailcall.c:37\r\n.*" "up to main"
+gdb_test "down" "#1\[^\r\n\]*foo \\(\\) at x86-tailcall.c:29\r\n.*" "down to foo"
+
+# test stepping into and out of tailcalls.
+gdb_test "finish" "\[^\r\n\]*main \\(\\) at x86-tailcall.c:37\r\n.*"
+gdb_test "reverse-step" "\[^\r\n\]*bar \\(\\) at x86-tailcall.c:24\r\n.*"
+gdb_test "reverse-finish" "\[^\r\n\]*foo \\(\\) at x86-tailcall.c:29\r\n.*"
+gdb_test "reverse-step" "\[^\r\n\]*main \\(\\) at x86-tailcall.c:37\r\n.*"
+gdb_test "next" "\[^\r\n\]*main \\(\\) at x86-tailcall.c:39\r\n.*"
+gdb_test "reverse-next" "\[^\r\n\]*main \\(\\) at x86-tailcall.c:37\r\n.*"
+gdb_test "step" "\[^\r\n\]*foo \\(\\) at x86-tailcall.c:29\r\n.*"
+gdb_test "finish" "\[^\r\n\]*main \\(\\) at x86-tailcall.c:37\r\n.*"
+gdb_test "reverse-step" "\[^\r\n\]*bar \\(\\) at x86-tailcall.c:24\r\n.*"
+gdb_test "finish" "\[^\r\n\]*main \\(\\) at x86-tailcall.c:37\r\n.*"