Fix racy output matching in gdb.base/multi-attach.exp, gdb.server/ext-{attach, restart, ext-run}.exp

This commit fixes this same problem in several places:

  (gdb) PASS: gdb.multi/multi-attach.exp: backtrace 2
  kill
  Kill the program being debugged? (y or n) y
  (gdb) FAIL: gdb.multi/multi-attach.exp: kill inferior 2 (got interactive prompt)

This is just another case of the gdb_test_multiple's internal "got
interactive prompt" pattern matching because the testcase misses
matching enough.

gdb/testsuite/ChangeLog:
2017-11-09  Pedro Alves  <palves@redhat.com>

	* gdb.multi/multi-attach.exp ("kill" test): Match the whole query
	output.
	* gdb.server/ext-attach.exp ("kill" test): Likewise.
	* gdb.server/ext-restart.exp ("kill" test): Likewise.
	* gdb.server/ext-run.exp ("kill" test): Likewise.
	* gdb.server/ext-wrapper.exp ("kill" test): Likewise.

6 files changed, 15 insertions, 6 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index c6c5260..967ef89 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,14 @@
 2017-11-09  Pedro Alves  <palves@redhat.com>
 
+	* gdb.multi/multi-attach.exp ("kill" test): Match the whole query
+	output.
+	* gdb.server/ext-attach.exp ("kill" test): Likewise.
+	* gdb.server/ext-restart.exp ("kill" test): Likewise.
+	* gdb.server/ext-run.exp ("kill" test): Likewise.
+	* gdb.server/ext-wrapper.exp ("kill" test): Likewise.
+
+2017-11-09  Pedro Alves  <palves@redhat.com>
+
 	* gdb.cp/cpcompletion.exp (test_class_complete): Tighten regex to
 	match till end of line.
 
diff --git a/gdb/testsuite/gdb.multi/multi-attach.exp b/gdb/testsuite/gdb.multi/multi-attach.exp
index 4240ff7..9397f85 100644
--- a/gdb/testsuite/gdb.multi/multi-attach.exp
+++ b/gdb/testsuite/gdb.multi/multi-attach.exp
@@ -51,9 +51,9 @@ gdb_test "attach $testpid2" \
     "attach to program 2"
 gdb_test "backtrace" ".*main.*" "backtrace 2"
 
-gdb_test "kill" "" "kill inferior 2" "Kill the program being debugged.*" "y"
+gdb_test "kill" "" "kill inferior 2" "Kill the program being debugged. .y or n. " "y"
 gdb_test "inferior 1" ".*Switching to inferior 1.*"
-gdb_test "kill" "" "kill inferior 1" "Kill the program being debugged.*" "y"
+gdb_test "kill" "" "kill inferior 1" "Kill the program being debugged. .y or n. " "y"
 
 kill_wait_spawned_process $test_spawn_id1
 kill_wait_spawned_process $test_spawn_id2
diff --git a/gdb/testsuite/gdb.server/ext-attach.exp b/gdb/testsuite/gdb.server/ext-attach.exp
index f3e992a..881c636 100644
--- a/gdb/testsuite/gdb.server/ext-attach.exp
+++ b/gdb/testsuite/gdb.server/ext-attach.exp
@@ -68,7 +68,7 @@ gdb_test "attach $testpid" \
     "attach to remote program 2"
 gdb_test "backtrace" ".*main.*" "backtrace 2"
 
-gdb_test "kill" "" "kill" "Kill the program being debugged.*" "y"
+gdb_test "kill" "" "kill" "Kill the program being debugged. .y or n. " "y"
 gdb_test_no_output "monitor exit"
 
 kill_wait_spawned_process $test_spawn_id
diff --git a/gdb/testsuite/gdb.server/ext-restart.exp b/gdb/testsuite/gdb.server/ext-restart.exp
index 44c9b1f..d28ce47 100644
--- a/gdb/testsuite/gdb.server/ext-restart.exp
+++ b/gdb/testsuite/gdb.server/ext-restart.exp
@@ -60,6 +60,6 @@ with_test_prefix "restart" {
     }
 }
 
-gdb_test "kill" "" "kill" "Kill the program being debugged.*" "y"
+gdb_test "kill" "" "kill" "Kill the program being debugged. .y or n. " "y"
 
 gdb_test_no_output "monitor exit"
diff --git a/gdb/testsuite/gdb.server/ext-run.exp b/gdb/testsuite/gdb.server/ext-run.exp
index cdb1695..d8b3e92 100644
--- a/gdb/testsuite/gdb.server/ext-run.exp
+++ b/gdb/testsuite/gdb.server/ext-run.exp
@@ -61,7 +61,7 @@ if { [istarget *-*-linux*] } {
     }
 }
 
-gdb_test "kill" "" "kill" "Kill the program being debugged.*" "y"
+gdb_test "kill" "" "kill" "Kill the program being debugged. .y or n. " "y"
 
 gdb_load $binfile
 gdb_test "monitor help" "The following monitor commands.*" \
diff --git a/gdb/testsuite/gdb.server/ext-wrapper.exp b/gdb/testsuite/gdb.server/ext-wrapper.exp
index 8b1af7b..b195ae7 100644
--- a/gdb/testsuite/gdb.server/ext-wrapper.exp
+++ b/gdb/testsuite/gdb.server/ext-wrapper.exp
@@ -65,6 +65,6 @@ with_test_prefix "restart" {
     gdb_test "print d" "\\$${decimal} = ${hex} \"1\".*"
 }
 
-gdb_test "kill" "" "kill" "Kill the program being debugged.*" "y"
+gdb_test "kill" "" "kill" "Kill the program being debugged. .y or n. " "y"
 
 gdb_test_no_output "monitor exit"