On 8/6/25 12:24, Daniel P. Berrangé wrote:
+#line 48 "../../../../../../../../dev/stdout"
These line directives depend on the name of the QEMU build directory...
+ args += [events,
+ "/dev/stdout"]
... because you're using an absolute path here.
Maybe you can use a temporary directory, in which you copy the source
file as well?
Paolo
+ actual = check_output(args)
+
+ if os.getenv("QEMU_TEST_REGENERATE", False):
+ print(f"# regenerate {filename}")
+ with open(filename, "wb") as fh:
+ fh.write(actual)
+
+ with open(filename, "rb") as fh:
+ expect = fh.read()
+
+ assert(expect == actual)
+
+def test_tracetool(tracetool, events, backend):
+ fail = False
+ scenarios = len(get_formats(backend))
+
+ print(f"1..{scenarios}")
+
+ num = 1
+ for fmt in get_formats(backend):
+ status = "not ok"
+ hint = ""
+ try:
+ test_tracetool_one(tracetool, events, backend, fmt)
+ status = "ok"
+ except Exception as e:
+ print(f"# {e}")
+ fail = True
+ hint = " (set QEMU_TEST_REGENERATE=1 to recreate reference " + \
+ "output if tracetool generator was intentionally changed)"
+ finally:
+ print(f"{status} {num} - {backend}.{fmt}{hint}")
+
+ return fail
+
+
+if __name__ == '__main__':
+ if len(sys.argv) != 4:
+ argv0 = sys.argv[0]
+ print("syntax: {argv0} TRACE-TOOL TRACE-EVENTS BACKEND",
file=sys.stderr)
+ sys.exit(1)
+
+ fail = test_tracetool(sys.argv[1], sys.argv[2], sys.argv[3])
+ if fail:
+ sys.exit(1)
+ sys.exit(0)
diff --git a/tests/tracetool/ust.c b/tests/tracetool/ust.c
new file mode 100644
index 0000000000..9f862fa14d
--- /dev/null
+++ b/tests/tracetool/ust.c
@@ -0,0 +1,32 @@
+/* This file is autogenerated by tracetool, do not edit. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "qemu/osdep.h"
+#include "qemu/module.h"
+#include "trace-testsuite.h"
+
+uint16_t _TRACE_TEST_BLAH_DSTATE;
+uint16_t _TRACE_TEST_WIBBLE_DSTATE;
+TraceEvent _TRACE_TEST_BLAH_EVENT = {
+ .id = 0,
+ .name = "test_blah",
+ .sstate = TRACE_TEST_BLAH_ENABLED,
+ .dstate = &_TRACE_TEST_BLAH_DSTATE
+};
+TraceEvent _TRACE_TEST_WIBBLE_EVENT = {
+ .id = 0,
+ .name = "test_wibble",
+ .sstate = TRACE_TEST_WIBBLE_ENABLED,
+ .dstate = &_TRACE_TEST_WIBBLE_DSTATE
+};
+TraceEvent *testsuite_trace_events[] = {
+ &_TRACE_TEST_BLAH_EVENT,
+ &_TRACE_TEST_WIBBLE_EVENT,
+ NULL,
+};
+
+static void trace_testsuite_register_events(void)
+{
+ trace_event_register_group(testsuite_trace_events);
+}
+trace_init(trace_testsuite_register_events)
diff --git a/tests/tracetool/ust.h b/tests/tracetool/ust.h
new file mode 100644
index 0000000000..1184ddd870
--- /dev/null
+++ b/tests/tracetool/ust.h
@@ -0,0 +1,55 @@
+/* This file is autogenerated by tracetool, do not edit. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef TRACE_TESTSUITE_GENERATED_TRACERS_H
+#define TRACE_TESTSUITE_GENERATED_TRACERS_H
+
+#include "trace/control.h"
+
+extern TraceEvent _TRACE_TEST_BLAH_EVENT;
+extern TraceEvent _TRACE_TEST_WIBBLE_EVENT;
+extern uint16_t _TRACE_TEST_BLAH_DSTATE;
+extern uint16_t _TRACE_TEST_WIBBLE_DSTATE;
+#define TRACE_TEST_BLAH_ENABLED 1
+#define TRACE_TEST_WIBBLE_ENABLED 1
+#include <lttng/tracepoint.h>
+#include "trace-ust-testsuite.h"
+
+/* tracepoint_enabled() was introduced in LTTng UST 2.7 */
+#ifndef tracepoint_enabled
+#define tracepoint_enabled(a, b) true
+#endif
+
+
+#define TRACE_TEST_BLAH_BACKEND_DSTATE() ( \
+ tracepoint_enabled(qemu, test_blah) || \
+ false)
+
+static inline void _nocheck__trace_test_blah(void *context, const char
*filename)
+{
+ tracepoint(qemu, test_blah, context, filename);
+}
+
+static inline void trace_test_blah(void *context, const char *filename)
+{
+ if (true) {
+ _nocheck__trace_test_blah(context, filename);
+ }
+}
+
+#define TRACE_TEST_WIBBLE_BACKEND_DSTATE() ( \
+ tracepoint_enabled(qemu, test_wibble) || \
+ false)
+
+static inline void _nocheck__trace_test_wibble(void *context, int value)
+{
+ tracepoint(qemu, test_wibble, context, value);
+}
+
+static inline void trace_test_wibble(void *context, int value)
+{
+ if (true) {
+ _nocheck__trace_test_wibble(context, value);
+ }
+}
+#endif /* TRACE_TESTSUITE_GENERATED_TRACERS_H */
diff --git a/tests/tracetool/ust.ust-events-c b/tests/tracetool/ust.ust-events-c
new file mode 100644
index 0000000000..db23224056
--- /dev/null
+++ b/tests/tracetool/ust.ust-events-c
@@ -0,0 +1,14 @@
+/* This file is autogenerated by tracetool, do not edit. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "qemu/osdep.h"
+
+#define TRACEPOINT_DEFINE
+#define TRACEPOINT_CREATE_PROBES
+
+/* If gcc version 4.7 or older is used, LTTng ust gives a warning when
compiling with
+ -Wredundant-decls.
+ */
+#pragma GCC diagnostic ignored "-Wredundant-decls"
+
+#include "trace-ust-all.h"
diff --git a/tests/tracetool/ust.ust-events-h b/tests/tracetool/ust.ust-events-h
new file mode 100644
index 0000000000..4621a995fc
--- /dev/null
+++ b/tests/tracetool/ust.ust-events-h
@@ -0,0 +1,56 @@
+/* This file is autogenerated by tracetool, do not edit. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#undef TRACEPOINT_PROVIDER
+#define TRACEPOINT_PROVIDER qemu
+
+#undef TRACEPOINT_INCLUDE
+#define TRACEPOINT_INCLUDE "./trace-ust.h"
+
+#if !defined (TRACE_TESTSUITE_GENERATED_UST_H) || \
+ defined(TRACEPOINT_HEADER_MULTI_READ)
+#define TRACE_TESTSUITE_GENERATED_UST_H
+
+#include <lttng/tracepoint.h>
+
+/*
+ * LTTng ust 2.0 does not allow you to use TP_ARGS(void) for tracepoints
+ * requiring no arguments. We define these macros introduced in more recent *
versions of LTTng ust as a workaround
+ */
+#ifndef _TP_EXPROTO1
+#define _TP_EXPROTO1(a) void
+#endif
+#ifndef _TP_EXDATA_PROTO1
+#define _TP_EXDATA_PROTO1(a) void *__tp_data
+#endif
+#ifndef _TP_EXDATA_VAR1
+#define _TP_EXDATA_VAR1(a) __tp_data
+#endif
+#ifndef _TP_EXVAR1
+#define _TP_EXVAR1(a)
+#endif
+
+TRACEPOINT_EVENT(
+ qemu,
+ test_blah,
+ TP_ARGS(void *, context, const char *, filename),
+ TP_FIELDS(
+ ctf_integer_hex(void *, context, context)
+ ctf_string(filename, filename)
+ )
+)
+
+TRACEPOINT_EVENT(
+ qemu,
+ test_wibble,
+ TP_ARGS(void *, context, int, value),
+ TP_FIELDS(
+ ctf_integer_hex(void *, context, context)
+ ctf_integer(int, value, value)
+ )
+)
+
+#endif /* TRACE_TESTSUITE_GENERATED_UST_H */
+
+/* This part must be outside ifdef protection */
+#include <lttng/tracepoint-event.h>
