[binutils-gdb] [gdb/testsuite] Fix test-case gdb.threads/attach-stopped.exp on manjaro linux

[Tom de Vries <vries@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a26b7d06eb20bf8c83c9204a398c3444b5c28ddb

commit a26b7d06eb20bf8c83c9204a398c3444b5c28ddb
Author: Tom de Vries <tdevries@suse.de>
Date:   Thu Mar 28 08:26:31 2024 +0100

    [gdb/testsuite] Fix test-case gdb.threads/attach-stopped.exp on manjaro linux
    
    When running test-case gdb.threads/attach-stopped.exp on aarch64-linux, using
    the manjaro linux distro, I get:
    ...
     (gdb) thread apply all bt^M
     ^M
     Thread 2 (Thread 0xffff8d8af120 (LWP 278116) "attach-stopped"):^M
     #0  0x0000ffff8d964864 in clock_nanosleep () from /usr/lib/libc.so.6^M
     #1  0x0000ffff8d969cac in nanosleep () from /usr/lib/libc.so.6^M
     #2  0x0000ffff8d969b68 in sleep () from /usr/lib/libc.so.6^M
     #3  0x0000aaaade370828 in func (arg=0x0) at attach-stopped.c:29^M
     #4  0x0000ffff8d930aec in ?? () from /usr/lib/libc.so.6^M
     #5  0x0000ffff8d99a5dc in ?? () from /usr/lib/libc.so.6^M
     ^M
     Thread 1 (Thread 0xffff8db62020 (LWP 278111) "attach-stopped"):^M
     #0  0x0000ffff8d92d2d8 in ?? () from /usr/lib/libc.so.6^M
     #1  0x0000ffff8d9324b8 in ?? () from /usr/lib/libc.so.6^M
     #2  0x0000aaaade37086c in main () at attach-stopped.c:45^M
     (gdb) FAIL: gdb.threads/attach-stopped.exp: threaded: attach2 to stopped bt
    ...
    
    The problem is that the test-case expects to see start_thread:
    ...
            gdb_test "thread apply all bt" ".*sleep.*start_thread.*" \
                "$threadtype: attach2 to stopped bt"
    ...
    but lack of symbols makes that impossible.
    
    Fix this by allowing " in ?? () from " as well.
    
    Tested on aarch64-linux.
    
    PR testsuite/31451
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31451

Diff:
---
 gdb/testsuite/gdb.threads/attach-stopped.exp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gdb/testsuite/gdb.threads/attach-stopped.exp b/gdb/testsuite/gdb.threads/attach-stopped.exp
index 4be0e220b17..78e194c992f 100644
--- a/gdb/testsuite/gdb.threads/attach-stopped.exp
+++ b/gdb/testsuite/gdb.threads/attach-stopped.exp
@@ -54,10 +54,12 @@ proc corefunc { threadtype } {
     }
 
     # ".*sleep.*clone.*" would fail on s390x as bt stops at START_THREAD there.
+    set test "$threadtype: attach2 to stopped bt"
     if {[string equal $threadtype threaded]} {
-	gdb_test "thread apply all bt" ".*sleep.*start_thread.*" "$threadtype: attach2 to stopped bt"
+	gdb_test "thread apply all bt" \
+	    ".*sleep.*(start_thread| in \\?\\? \\(\\) from ).*" $test
     } else {
-	gdb_test "bt" ".*sleep.*main.*" "$threadtype: attach2 to stopped bt"
+	gdb_test "bt" ".*sleep.*main.*" $test
     }
 
     gdb_exit