F: scripts/qemu-trace-stap*
F: docs/tools/qemu-trace-stap.rst
F: docs/devel/tracing.rst
+F: tests/tracetool/
T: git https://github.com/stefanha/qemu.git tracing
Simpletrace
``qapi-schema += foo.json``
+.. _tracetool-tests:
+
+Tracetool tests
+~~~~~~~~~~~~~~~
+
+The tracetool tests validate the generated source files used for defining
+probes for various tracing backends and source formats. The test operates
+by running the tracetool program against a sample trace-events file, and
+comparing the generated output against known good reference output. The
+tests can be run with:
+
+.. code::
+
+ make check-tracetool
+
+The reference output is stored in files under tests/tracetool, and when
+the tracetool backend/format output is intentionally changed, the reference
+files need to be updated. This can be automated by setting the
+QEMU_TEST_REGENERATE=1 environment variable:
+
+.. code::
+
+ QEMU_TEST_REGENERATE=1 make check-tracetool
+
+The resulting changes must be reviewed by the author to ensure they match
+the intended results, before adding the updated reference output to the
+same commit that alters the generator code.
+
check-block
~~~~~~~~~~~
@echo " $(MAKE) check-functional-TARGET Run functional tests for a given target"
@echo " $(MAKE) check-unit Run qobject tests"
@echo " $(MAKE) check-qapi-schema Run QAPI schema tests"
+ @echo " $(MAKE) check-tracetool Run tracetool generator tests"
@echo " $(MAKE) check-block Run block tests"
ifneq ($(filter $(all-check-targets), check-softfloat),)
@echo " $(MAKE) check-tcg Run TCG tests"
subdir('qtest')
subdir('migration-stress')
subdir('functional')
+subdir('tracetool')
--- /dev/null
+/* 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)
--- /dev/null
+/* This file is autogenerated by tracetool, do not edit. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+provider qemu {
+
+probe test_blah(void * context,const char * filename);
+
+probe test_wibble(void * context,int value);
+
+};
--- /dev/null
+/* 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
+#ifndef SDT_USE_VARIADIC
+#define SDT_USE_VARIADIC 1
+#endif
+#include "trace-dtrace-testsuite.h"
+
+#undef SDT_USE_VARIADIC
+#ifndef QEMU_TEST_BLAH_ENABLED
+#define QEMU_TEST_BLAH_ENABLED() true
+#endif
+#ifndef QEMU_TEST_WIBBLE_ENABLED
+#define QEMU_TEST_WIBBLE_ENABLED() true
+#endif
+
+#define TRACE_TEST_BLAH_BACKEND_DSTATE() ( \
+ QEMU_TEST_BLAH_ENABLED() || \
+ false)
+
+static inline void _nocheck__trace_test_blah(void *context, const char *filename)
+{
+ 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() ( \
+ QEMU_TEST_WIBBLE_ENABLED() || \
+ false)
+
+static inline void _nocheck__trace_test_wibble(void *context, int value)
+{
+ 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 */
--- /dev/null
+/* This file is autogenerated by tracetool, do not edit. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+probe qemu.log.test_blah = qemu.test_blah ?
+{
+ try {
+ argfilename_str = filename ? user_string_n(filename, 512) : "<null>"
+ } catch {}
+ printf("%d@%d test_blah Blah context=%p filename=%s\n", pid(), gettimeofday_ns(), context, argfilename_str)
+}
+probe qemu.log.test_wibble = qemu.test_wibble ?
+{
+ printf("%d@%d test_wibble Wibble context=%p value=%d\n", pid(), gettimeofday_ns(), context, value)
+}
+
--- /dev/null
+/* This file is autogenerated by tracetool, do not edit. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+probe qemu.simpletrace.test_blah = qemu.test_blah ?
+{
+ try {
+ argfilename_str = filename ? user_string_n(filename, 512) : "<null>"
+ } catch {}
+ argfilename_len = strlen(argfilename_str)
+ printf("%8b%8b%8b%4b%4b%8b%4b%.*s", 1, 0, gettimeofday_ns(), 24 + 8 + 4 + argfilename_len, pid(), context, argfilename_len, argfilename_len, argfilename_str)
+}
+probe qemu.simpletrace.test_wibble = qemu.test_wibble ?
+{
+ printf("%8b%8b%8b%4b%4b%8b%8b", 1, 1, gettimeofday_ns(), 24 + 8 + 8, pid(), context, value)
+}
+
--- /dev/null
+/* This file is autogenerated by tracetool, do not edit. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+probe qemu.test_blah = process("qemu").mark("test_blah")
+{
+ context = $arg1;
+ filename = $arg2;
+}
+probe qemu.test_wibble = process("qemu").mark("test_wibble")
+{
+ context = $arg1;
+ value = $arg2;
+}
+
--- /dev/null
+/* 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)
--- /dev/null
+/* 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 "trace/ftrace.h"
+
+
+#define TRACE_TEST_BLAH_BACKEND_DSTATE() ( \
+ trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) || \
+ false)
+
+static inline void _nocheck__trace_test_blah(void *context, const char *filename)
+{
+ {
+ char ftrace_buf[MAX_TRACE_STRLEN];
+ int unused __attribute__ ((unused));
+ int trlen;
+ if (trace_event_get_state(TRACE_TEST_BLAH)) {
+#line 4 "trace-events"
+ trlen = snprintf(ftrace_buf, MAX_TRACE_STRLEN,
+ "test_blah " "Blah context=%p filename=%s" "\n" , context, filename);
+#line 33 "ftrace.h"
+ trlen = MIN(trlen, MAX_TRACE_STRLEN - 1);
+ unused = write(trace_marker_fd, ftrace_buf, trlen);
+ }
+ }
+}
+
+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() ( \
+ trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) || \
+ false)
+
+static inline void _nocheck__trace_test_wibble(void *context, int value)
+{
+ {
+ char ftrace_buf[MAX_TRACE_STRLEN];
+ int unused __attribute__ ((unused));
+ int trlen;
+ if (trace_event_get_state(TRACE_TEST_WIBBLE)) {
+#line 5 "trace-events"
+ trlen = snprintf(ftrace_buf, MAX_TRACE_STRLEN,
+ "test_wibble " "Wibble context=%p value=%d" "\n" , context, value);
+#line 61 "ftrace.h"
+ trlen = MIN(trlen, MAX_TRACE_STRLEN - 1);
+ unused = write(trace_marker_fd, ftrace_buf, trlen);
+ }
+ }
+}
+
+static inline void trace_test_wibble(void *context, int value)
+{
+ if (true) {
+ _nocheck__trace_test_wibble(context, value);
+ }
+}
+#endif /* TRACE_TESTSUITE_GENERATED_TRACERS_H */
--- /dev/null
+/* 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)
--- /dev/null
+/* 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 "qemu/log-for-trace.h"
+
+
+#define TRACE_TEST_BLAH_BACKEND_DSTATE() ( \
+ trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) || \
+ false)
+
+static inline void _nocheck__trace_test_blah(void *context, const char *filename)
+{
+ if (trace_event_get_state(TRACE_TEST_BLAH) && qemu_loglevel_mask(LOG_TRACE)) {
+#line 4 "trace-events"
+ qemu_log("test_blah " "Blah context=%p filename=%s" "\n", context, filename);
+#line 28 "log.h"
+ }
+}
+
+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() ( \
+ trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) || \
+ false)
+
+static inline void _nocheck__trace_test_wibble(void *context, int value)
+{
+ if (trace_event_get_state(TRACE_TEST_WIBBLE) && qemu_loglevel_mask(LOG_TRACE)) {
+#line 5 "trace-events"
+ qemu_log("test_wibble " "Wibble context=%p value=%d" "\n", context, value);
+#line 48 "log.h"
+ }
+}
+
+static inline void trace_test_wibble(void *context, int value)
+{
+ if (true) {
+ _nocheck__trace_test_wibble(context, value);
+ }
+}
+#endif /* TRACE_TESTSUITE_GENERATED_TRACERS_H */
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+test_env = environment()
+test_env.set('PYTHONPATH', meson.project_source_root() / 'scripts')
+test_env.set('PYTHONIOENCODING', 'utf-8')
+
+backends = [
+ 'dtrace',
+ 'ftrace',
+ 'log',
+ 'simple',
+ 'syslog',
+ 'ust'
+]
+
+# The tracetool-test.py program has portability problems on Windows.
+if host_machine.system() != 'windows'
+ foreach backend: backends
+ test(backend,
+ python,
+ args: [meson.current_source_dir() / 'tracetool-test.py',
+ meson.project_source_root() / 'scripts' / 'tracetool.py',
+ backend,
+ meson.current_source_dir(),
+ meson.current_build_dir()],
+ suite: ['tracetool'])
+ endforeach
+endif
--- /dev/null
+/* 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)
+#include "qemu/osdep.h"
+#include "trace/control.h"
+#include "trace/simple.h"
+
+void _simple_trace_test_blah(void *context, const char *filename)
+{
+ TraceBufferRecord rec;
+ size_t argfilename_len = filename ? MIN(strlen(filename), MAX_TRACE_STRLEN) : 0;
+
+ if (trace_record_start(&rec, _TRACE_TEST_BLAH_EVENT.id, 8 + 4 + argfilename_len)) {
+ return; /* Trace Buffer Full, Event Dropped ! */
+ }
+ trace_record_write_u64(&rec, (uintptr_t)(uint64_t *)context);
+ trace_record_write_str(&rec, filename, argfilename_len);
+ trace_record_finish(&rec);
+}
+
+void _simple_trace_test_wibble(void *context, int value)
+{
+ TraceBufferRecord rec;
+
+ if (trace_record_start(&rec, _TRACE_TEST_WIBBLE_EVENT.id, 8 + 8)) {
+ return; /* Trace Buffer Full, Event Dropped ! */
+ }
+ trace_record_write_u64(&rec, (uintptr_t)(uint64_t *)context);
+ trace_record_write_u64(&rec, (uint64_t)value);
+ trace_record_finish(&rec);
+}
+
--- /dev/null
+/* 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
+void _simple_trace_test_blah(void *context, const char *filename);
+void _simple_trace_test_wibble(void *context, int value);
+
+
+#define TRACE_TEST_BLAH_BACKEND_DSTATE() ( \
+ trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) || \
+ false)
+
+static inline void _nocheck__trace_test_blah(void *context, const char *filename)
+{
+ if (trace_event_get_state(TRACE_TEST_BLAH)) {
+ _simple_trace_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() ( \
+ trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) || \
+ false)
+
+static inline void _nocheck__trace_test_wibble(void *context, int value)
+{
+ if (trace_event_get_state(TRACE_TEST_WIBBLE)) {
+ _simple_trace_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 */
--- /dev/null
+/* 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)
--- /dev/null
+/* 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 <syslog.h>
+
+
+#define TRACE_TEST_BLAH_BACKEND_DSTATE() ( \
+ trace_event_get_state_dynamic_by_id(TRACE_TEST_BLAH) || \
+ false)
+
+static inline void _nocheck__trace_test_blah(void *context, const char *filename)
+{
+ if (trace_event_get_state(TRACE_TEST_BLAH)) {
+#line 4 "trace-events"
+ syslog(LOG_INFO, "test_blah " "Blah context=%p filename=%s" , context, filename);
+#line 28 "syslog.h"
+ }
+}
+
+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() ( \
+ trace_event_get_state_dynamic_by_id(TRACE_TEST_WIBBLE) || \
+ false)
+
+static inline void _nocheck__trace_test_wibble(void *context, int value)
+{
+ if (trace_event_get_state(TRACE_TEST_WIBBLE)) {
+#line 5 "trace-events"
+ syslog(LOG_INFO, "test_wibble " "Wibble context=%p value=%d" , context, value);
+#line 48 "syslog.h"
+ }
+}
+
+static inline void trace_test_wibble(void *context, int value)
+{
+ if (true) {
+ _nocheck__trace_test_wibble(context, value);
+ }
+}
+#endif /* TRACE_TESTSUITE_GENERATED_TRACERS_H */
--- /dev/null
+# See docs/devel/tracing.rst for syntax documentation.
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+test_blah(void *context, const char *filename) "Blah context=%p filename=%s"
+test_wibble(void *context, int value) "Wibble context=%p value=%d"
--- /dev/null
+#!/usr/bin/python3
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+import os
+from pathlib import Path
+from shutil import copyfile
+from subprocess import check_call
+import sys
+
+
+def get_formats(backend):
+ formats = [
+ "c",
+ "h",
+ ]
+ if backend == "dtrace":
+ formats += [
+ "d",
+ "log-stap",
+ "simpletrace-stap",
+ "stap",
+ ]
+ if backend == "ust":
+ formats += [
+ "ust-events-c",
+ "ust-events-h",
+ ]
+ return formats
+
+
+def test_tracetool_one(tracetool, backend, fmt, src_dir, build_dir):
+ rel_filename = backend + "." + fmt
+ actual_file = Path(build_dir, rel_filename)
+ expect_file = Path(src_dir, rel_filename)
+
+ args = [tracetool, f"--format={fmt}", f"--backends={backend}", "--group=testsuite"]
+
+ if fmt.find("stap") != -1:
+ args += ["--binary=qemu", "--probe-prefix=qemu"]
+
+ # Use relative files for both, as these filenames end
+ # up in '#line' statements in the output
+ args += ["trace-events", rel_filename]
+
+ try:
+ check_call(args, cwd=build_dir)
+ actual = actual_file.read_text()
+ finally:
+ actual_file.unlink()
+
+ if os.getenv("QEMU_TEST_REGENERATE", False):
+ print(f"# regenerate {expect_file}")
+ expect_file.write_text(actual)
+
+ expect = expect_file.read_text()
+
+ assert expect == actual
+
+
+def test_tracetool(tracetool, backend, source_dir, build_dir):
+ fail = False
+ scenarios = len(get_formats(backend))
+
+ print(f"1..{scenarios}")
+
+ src_events = Path(source_dir, "trace-events")
+ build_events = Path(build_dir, "trace-events")
+
+ try:
+ # We need a stable relative filename under build dir
+ # for the '#line' statements, so copy over the input
+ copyfile(src_events, build_events)
+
+ num = 1
+ for fmt in get_formats(backend):
+ status = "not ok"
+ hint = ""
+ try:
+ test_tracetool_one(tracetool, backend, fmt, source_dir, build_dir)
+ 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}")
+ finally:
+ build_events.unlink()
+
+ return fail
+
+
+if __name__ == "__main__":
+ if len(sys.argv) != 5:
+ argv0 = sys.argv[0]
+ print("syntax: {argv0} TRACE-TOOL BACKEND SRC-DIR BUILD-DIR", file=sys.stderr)
+ sys.exit(1)
+
+ fail = test_tracetool(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4])
+ if fail:
+ sys.exit(1)
+ sys.exit(0)
--- /dev/null
+/* 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)
--- /dev/null
+/* 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 */
--- /dev/null
+/* 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"
--- /dev/null
+/* 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>
projects / thirdparty / qemu.git / commitdiff
