[binutils-gdb] [gdb/testsuite] Fix timeout in gdb.threads/vfork-multi-inferior.exp

https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3Dd073260de4fc=
ce27a4107e2a0932ca8b84d53529

commit d073260de4fcce27a4107e2a0932ca8b84d53529
Author: Tom de Vries <[email protected]>
Date:   Sat Jul 25 08:29:16 2026 +0200

    [gdb/testsuite] Fix timeout in gdb.threads/vfork-multi-inferior.exp
   =20
    With test-case gdb.threads/vfork-multi-inferior.exp I get either:
    ...
    (gdb) run &
    Starting program: vfork-multi-inferior-sleep
    (gdb) PASS: $exp: method=3Dnon-stop: run inferior 2
    [Thread debugging using libthread_db enabled]
    Using host libthread_db library "/lib64/libthread_db.so.1".
    inferior 1
    [Switching to inferior 1 [<null>] (<noexec>)]
    (gdb) PASS: $exp: method=3Dnon-stop: inferior 1
    ...
    or:
    ...
    (gdb) run &
    Starting program: vfork-multi-inferior-sleep
    (gdb) PASS: $exp: method=3Dnon-stop: run inferior 2
    inferior 1^M
    [Switching to inferior 1 [<null>] (<noexec>)]^M
    (gdb) PASS: $exp: method=3Dnon-stop: inferior 1
    [Thread debugging using libthread_db enabled]^M
    Using host libthread_db library "/lib64/libthread_db.so.1".^M
    ...
   =20
    With a 16.3-based package on aarch64-linux, I ran into:
    ...
    (gdb) run &
    Starting program: vfork-multi-inferior-sleep
    (gdb) PASS: $exp: method=3Dnon-stop: run inferior 2
    inferior 1
    [Switching to inferior 1 [<null>] (<noexec>)]
    (gdb) [Thread debugging using libthread_db enabled]
    Using host libthread_db library "/lib64/libthread_db.so.1".
    FAIL: $exp: method=3Dnon-stop: inferior 1
    (timeout)
    ...
   =20
    Unfortunately I have not been able to reproduce this.
   =20
    Fix this using -no-prompt-anchor.
   =20
    See also commit 5f69c00a6e0 ("[gdb/testsuite] Fix timeout in
    gdb.base/async-shell.exp").
   =20
    Reviewed-By: Keith Seitz <[email protected]>
    Approved-By: Kevin Buettner <[email protected]>
   =20
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=3D34427

Diff:
---
 gdb/testsuite/gdb.threads/vfork-multi-inferior.exp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdb/testsuite/gdb.threads/vfork-multi-inferior.exp b/gdb/tests=
uite/gdb.threads/vfork-multi-inferior.exp
index e258ec719e9..f6c90bf0655 100644
--- a/gdb/testsuite/gdb.threads/vfork-multi-inferior.exp
+++ b/gdb/testsuite/gdb.threads/vfork-multi-inferior.exp
@@ -86,7 +86,7 @@ proc do_test {method} {
     }
=20
     # Start the first inferior.
-    gdb_test "inferior 1" "Switching to inferior 1 .*"
+    gdb_test -no-prompt-anchor "inferior 1" "Switching to inferior 1 .*"
     gdb_file_cmd ${::binfile}
     gdb_test "break should_break_here" "Breakpoint $::decimal at .*"
     gdb_test "start" "Thread 1.1 .* hit Temporary breakpoint.*" \