[gdb/testsuite] Fix gdb.threads/clone-attach-detach.exp

With test-case gdb.threads/clone-attach-detach.exp I usually get:
...
(gdb) attach <pid> &^M
Attaching to program: clone-attach-detach, process <pid>^M
[New LWP <lwp>]^M
(gdb) PASS: $exp: bg attach <n>: attach
[Thread debugging using libthread_db enabled]^M
Using host libthread_db library "/lib64/libthread_db.so.1".^M
...
but sometimes I run into:
...
(gdb) attach <pid> &^M
Attaching to program: clone-attach-detach, process <pid>^M
[New LWP <lwp>]^M
(gdb) [Thread debugging using libthread_db enabled]^M
Using host libthread_db library "/lib64/libthread_db.so.1".^M
FAIL: $exp: bg attach <n>: attach (timeout)
...

I managed to reproduce this using make target check-readmore and
READMORE_SLEEP=100.

Fix this using -no-prompt-anchor.

Tested on x86_64-linux.

Approved-By: Simon Marchi <simon.marchi@efficios.com>

diff --git a/gdb/testsuite/gdb.threads/clone-attach-detach.exp b/gdb/testsuite/gdb.threads/clone-attach-detach.exp
index 0ae42819c7f0748ec11c9e9fa01a2cc9299aa9a2..3da2c3ed9a6a2580476dd457d491658ad9ae49d3 100644 (file)
--- a/gdb/testsuite/gdb.threads/clone-attach-detach.exp
+++ b/gdb/testsuite/gdb.threads/clone-attach-detach.exp
@@ -74,7 +74,7 @@ set attempts 3
 for {set attempt 1} {$attempt <= $attempts} {incr attempt} {
     with_test_prefix "bg attach $attempt" {
 
-       gdb_test "attach $testpid &" \
+       gdb_test -no-prompt-anchor "attach $testpid &" \
            "Attaching to program.*process $testpid.*" \
            "attach"