qtest_qmp provides a convenient way to automatically serialize into the
client JSON protocol and to send the command to the QMP socket.
Since qtest has a strong dependency to the QMP monitor, a minimal number
of function has been added to mcd-test.c for interoperability with MCD's
protocol.
Signed-off-by: Mario Fleischmann <mario.fleischm...@lauterbach.com>
---
MAINTAINERS | 1 +
tests/qtest/mcd-test.c | 82 +++++++++++++++++++++++++++++++++++++++++
tests/qtest/mcd-util.h | 21 +++++++++++
tests/qtest/meson.build | 5 +++
4 files changed, 109 insertions(+)
create mode 100644 tests/qtest/mcd-test.c
create mode 100644 tests/qtest/mcd-util.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 159a38f..cb4f9ab 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3127,6 +3127,7 @@ F: mcd/*
F: docs/interop/mcd.rst
F: qapi/mcd.json
F: include/exec/mcdstub.h
+X: tests/qtest/mcd-*
Memory API
M: Paolo Bonzini <pbonz...@redhat.com>
diff --git a/tests/qtest/mcd-test.c b/tests/qtest/mcd-test.c
new file mode 100644
index 0000000..b9ee3f4
--- /dev/null
+++ b/tests/qtest/mcd-test.c
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * mcdtest - Test suite for the Multi-Core Debug (MCD) API implementation
+ *
+ * Copyright (c) 2025 Lauterbach GmbH
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+
+#ifndef _WIN32
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <sys/un.h>
+#endif /* _WIN32 */
+#ifdef __linux__
+#include <sys/prctl.h>
+#endif /* __linux__ */
+#ifdef __FreeBSD__
+#include <sys/procctl.h>
+#endif /* __FreeBSD__ */
+
+#include "libqtest.h"
+#include "mcd-util.h"
+
+#define QEMU_EXTRA_ARGS ""
+
+static bool verbose;
+
+static QTestStateMCD mcdtest_init(const char *extra_args)
+{
+ QTestStateMCD qts_mcd;
+ int sock;
+
+ g_autofree gchar *sock_path = g_strdup_printf("%s/qtest-%d.mcd",
+ g_get_tmp_dir(), getpid());
+
+ /* remove possible orphan from earlier test run */
+ unlink(sock_path);
+ sock = qtest_socket_server(sock_path);
+
+ g_autoptr(GString) args = g_string_new(extra_args);
+ g_string_append_printf(args, " -chardev socket,path=%s,id=mcdsock "
+ "-mcd chardev:mcdsock",
+ sock_path);
+
+ qts_mcd.qts = qtest_init_without_qmp_handshake(args->str);
+ g_assert(qts_mcd.qts);
+
+ qts_mcd.mcd_fd = accept(sock, NULL, NULL);
+ unlink(sock_path);
+ g_assert(qts_mcd.mcd_fd >= 0);
+
+ return qts_mcd;
+}
+
+static void mcdtest_quit(QTestStateMCD *qts)
+{
+ qtest_quit(qts->qts);
+ close(qts->mcd_fd);
+
+ qts->qts = NULL;
+ qts->mcd_fd = -1;
+}
+
+static void test_initialize_mcdtest(void)
+{
+ QTestStateMCD qts = mcdtest_init(QEMU_EXTRA_ARGS);
+ mcdtest_quit(&qts);
+}
+
+int main(int argc, char *argv[])
+{
+ char *v_env = getenv("V");
+ verbose = v_env && atoi(v_env) >= 1;
+ g_test_init(&argc, &argv, NULL);
+
+ qtest_add_func("mcd/initialize-mcdtest", test_initialize_mcdtest);
+ return g_test_run();
+}
diff --git a/tests/qtest/mcd-util.h b/tests/qtest/mcd-util.h
new file mode 100644
index 0000000..18ff8bd
--- /dev/null
+++ b/tests/qtest/mcd-util.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * mcdutil - Utility functions for the MCD API test suite
+ *
+ * Copyright (c) 2025 Lauterbach GmbH
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef TEST_MCD_UTILS_H
+#define TEST_MCD_UTILS_H
+
+#include "libqtest.h"
+
+typedef struct {
+ QTestState *qts;
+ int mcd_fd;
+} QTestStateMCD;
+
+#endif /* TEST_MCD_UTILS_H */
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 3136d15..3dc9508 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -397,6 +397,11 @@ if dbus_display
qtests += {'dbus-display-test': [dbus_display1, gio]}
endif
+if get_option('mcd').enabled()
+ qtests += { 'mcd-test': files('mcd-test.c') }
+ qtests_generic += [ 'mcd-test' ]
+endif
+
qtest_executables = {}
foreach dir : target_dirs
if not dir.endswith('-softmmu')
--
2.34.1
