[PATCH 3/3] Match output in async mode.

[Yao Qi <yao at codesourcery dot com>]

This patch is to match the program's output when in async mode.  It is
hard to match output in a unique way to handle both sync mode and
async mode, so I have to handle them separately.

The reason I choose send_gdb/gdb_expect, instead of gdb_test_multiple,
is gdb_test_multiple matches ""\r\n$gdb_prompt $", and return false.
However, "(gdb) " may appear in somewhere in the output, and trigger
fail for test.

With this patch, I run py-finish-breakpoint.exp 40 times in both
sync mode and async mode, no fail show up.

gdb/testsuite:

2012-05-25  Yao Qi  <yao@codesourcery.com>

	Fix PR 14135.
	* gdb.python/py-finish-breakpoint.exp: Match output in async
	mode.
---
 gdb/testsuite/gdb.python/py-finish-breakpoint.exp |   69 ++++++++++++++++++--
 1 files changed, 62 insertions(+), 7 deletions(-)

diff --git a/gdb/testsuite/gdb.python/py-finish-breakpoint.exp b/gdb/testsuite/gdb.python/py-finish-breakpoint.exp
index c601e85..4ab15e7 100644
--- a/gdb/testsuite/gdb.python/py-finish-breakpoint.exp
+++ b/gdb/testsuite/gdb.python/py-finish-breakpoint.exp
@@ -65,6 +65,22 @@ if ![runto_main] then {
 }
 
 gdb_test_no_output "set confirm off" "disable confirmation"
+
+set async "unknown"
+global gdb_prompt
+send_gdb "show target-async\n"
+gdb_expect {
+    -re ".*Controlling the inferior in asynchronous mode is on.*$gdb_prompt $" {
+	set async 1
+    }
+    -re ".*$gdb_prompt $" {
+	set async 0
+    }
+    timeout {
+	set async 0
+    }
+}
+
 gdb_test "source $python_file" "Python script imported.*" \
          "import python scripts"
 gdb_breakpoint "increase_1"
@@ -169,9 +185,22 @@ gdb_test "break ${cond_line} if test_1(i,8)" "Breakpoint .* at .*" \
          "set a conditional BP"
 gdb_test "python TestBreakpoint()" "TestBreakpoint init" \
          "set FinishBP in a breakpoint condition"
-gdb_test "continue" \
-         "\"FinishBreakpoint\" cannot be set on a dummy frame.*" \
-         "don't allow FinishBreakpoint on dummy frames"
+
+set test "don't allow FinishBreakpoint on dummy frames"
+
+if {$async} {
+    send_gdb "continue\n"
+    gdb_expect {
+	-re "\"FinishBreakpoint\" cannot be set on a dummy frame\\..* Condition Break\.  " {
+	    pass $test
+	}
+    }
+} else {
+    gdb_test "continue" \
+	"\"FinishBreakpoint\" cannot be set on a dummy frame.*" \
+	$test
+}
+
 gdb_test "print i" "8" "check stopped location"
 
 #
@@ -194,12 +223,38 @@ gdb_test "break ${cond_line} if test(i,8)" \
          "Breakpoint .* at .*" "set conditional BP"
 gdb_test "python TestBreakpoint()" "TestBreakpoint init" "set BP in condition"
 
-gdb_test "continue" \
-         "test don't stop: 1.*test don't stop: 2.*test stop.*Error in testing breakpoint condition.*The program being debugged stopped while in a function called from GDB.*" \
-         "stop in condition function"
+set test "stop in condition function"
+
+if {$async} {
+
+    send_gdb "continue\n"
+    gdb_expect {
+	-re "continue.*Continuing\\..*test don't stop: 1.*test don't stop: 2.*test stop.*Error in testing breakpoint condition.*The program being debugged stopped while in a function called from GDB.*Breakpoint " {
+	    pass $test
+	}
+
+	timeout { fail "$test (timeout)" }
+    }
+} else {
+    gdb_test "continue" \
+	"test don't stop: 1.*test don't stop: 2.*test stop.*Error in testing breakpoint condition.*The program being debugged stopped while in a function called from GDB.*" \
+	$test
+}
 
 gdb_test "continue" "Continuing.*" "finish condition evaluation"
-gdb_test "continue" "Breakpoint.*" "stop at conditional breakpoint"
+
+set test "stop at conditional breakpoint"
+if {$async} {
+    send_gdb "continue\n"
+    gdb_expect {
+	-re "continue.*Breakpoint.* Condition Break\\.  " {
+	    pass $test
+	}
+    }
+} else {
+    gdb_test "continue" "Breakpoint.*" $test
+}
+
 gdb_test "print i" "8" "check stopped location"
 
 #
-- 
1.7.0.4