tests/tcg: Add late gdbstub attach test

Add a small test to prevent regressions.
Make sure that host_interrupt_signal is not visible to the guest.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20250117001542.8290-9-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250207153112.3939799-18-alex.bennee@linaro.org>

1 files changed, 13 insertions, 2 deletions

diff --git a/tests/guest-debug/run-test.py b/tests/guest-debug/run-test.py
index 5a091db8be..75e9c92e03 100755
--- a/tests/guest-debug/run-test.py
+++ b/tests/guest-debug/run-test.py
@@ -36,6 +36,8 @@ def get_args():
     parser.add_argument("--gdb-args", help="Additional gdb arguments")
     parser.add_argument("--output", help="A file to redirect output to")
     parser.add_argument("--stderr", help="A file to redirect stderr to")
+    parser.add_argument("--no-suspend", action="store_true",
+                        help="Ask the binary to not wait for GDB connection")
 
     return parser.parse_args()
 
@@ -73,10 +75,19 @@ if __name__ == '__main__':
 
     # Launch QEMU with binary
     if "system" in args.qemu:
+        if args.no_suspend:
+            suspend = ''
+        else:
+            suspend = ' -S'
         cmd = f'{args.qemu} {args.qargs} {args.binary}' \
-            f' -S -gdb unix:path={socket_name},server=on'
+            f'{suspend} -gdb unix:path={socket_name},server=on'
     else:
-        cmd = f'{args.qemu} {args.qargs} -g {socket_name} {args.binary}'
+        if args.no_suspend:
+            suspend = ',suspend=n'
+        else:
+            suspend = ''
+        cmd = f'{args.qemu} {args.qargs} -g {socket_name}{suspend}' \
+            f' {args.binary}'
 
     log(output, "QEMU CMD: %s" % (cmd))
     inferior = subprocess.Popen(shlex.split(cmd))