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deps: cherry-pick c3bb73f from upstream V8
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Original commit message:

    [tracing] implement TRACE_EVENT_ADD_WITH_TIMESTAMP

    Bug:
    Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
    Change-Id: Icb3cf7b7f96704e1eaa4c5fbf773b94b70cddc85
    Reviewed-on: https://chromium-review.googlesource.com/861302
    Reviewed-by: Fadi Meawad <fmeawad@chromium.org>
    Reviewed-by: Yang Guo <yangguo@chromium.org>
    Commit-Queue: Ali Ijaz Sheikh <ofrobots@google.com>
    Cr-Commit-Position: refs/heads/master@{#50549}

Refs: v8/v8@c3bb73f
Refs: #17349
PR-URL: #18196
Refs: #18360
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
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ofrobots committed Jan 25, 2018
1 parent a1c5ddd commit b064403
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Showing 6 changed files with 168 additions and 10 deletions.
2 changes: 1 addition & 1 deletion common.gypi
Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@

# Reset this number to 0 on major V8 upgrades.
# Increment by one for each non-official patch applied to deps/v8.
'v8_embedder_string': '-node.2',
'v8_embedder_string': '-node.3',

# Enable disassembler for `--print-code` v8 options
'v8_enable_disassembler': 1,
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7 changes: 7 additions & 0 deletions deps/v8/include/libplatform/v8-tracing.h
Original file line number Diff line number Diff line change
Expand Up @@ -247,6 +247,13 @@ class V8_PLATFORM_EXPORT TracingController
const uint64_t* arg_values,
std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
unsigned int flags) override;
uint64_t AddTraceEventWithTimestamp(
char phase, const uint8_t* category_enabled_flag, const char* name,
const char* scope, uint64_t id, uint64_t bind_id, int32_t num_args,
const char** arg_names, const uint8_t* arg_types,
const uint64_t* arg_values,
std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
unsigned int flags, int64_t timestamp) override;
void UpdateTraceEventDuration(const uint8_t* category_enabled_flag,
const char* name, uint64_t handle) override;
void AddTraceStateObserver(
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15 changes: 12 additions & 3 deletions deps/v8/include/v8-platform.h
Original file line number Diff line number Diff line change
Expand Up @@ -119,11 +119,11 @@ class TracingController {
}

/**
* Adds a trace event to the platform tracing system. This function call is
* Adds a trace event to the platform tracing system. These function calls are
* usually the result of a TRACE_* macro from trace_event_common.h when
* tracing and the category of the particular trace are enabled. It is not
* advisable to call this function on its own; it is really only meant to be
* used by the trace macros. The returned handle can be used by
* advisable to call these functions on their own; they are really only meant
* to be used by the trace macros. The returned handle can be used by
* UpdateTraceEventDuration to update the duration of COMPLETE events.
*/
virtual uint64_t AddTraceEvent(
Expand All @@ -135,6 +135,15 @@ class TracingController {
unsigned int flags) {
return 0;
}
virtual uint64_t AddTraceEventWithTimestamp(
char phase, const uint8_t* category_enabled_flag, const char* name,
const char* scope, uint64_t id, uint64_t bind_id, int32_t num_args,
const char** arg_names, const uint8_t* arg_types,
const uint64_t* arg_values,
std::unique_ptr<ConvertableToTraceFormat>* arg_convertables,
unsigned int flags, int64_t timestamp) {
return 0;
}

/**
* Sets the duration field of a COMPLETE trace event. It must be called with
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18 changes: 18 additions & 0 deletions deps/v8/src/libplatform/tracing/tracing-controller.cc
Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,24 @@ uint64_t TracingController::AddTraceEvent(
return handle;
}

uint64_t TracingController::AddTraceEventWithTimestamp(
char phase, const uint8_t* category_enabled_flag, const char* name,
const char* scope, uint64_t id, uint64_t bind_id, int num_args,
const char** arg_names, const uint8_t* arg_types,
const uint64_t* arg_values,
std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
unsigned int flags, int64_t timestamp) {
uint64_t handle;
TraceObject* trace_object = trace_buffer_->AddTraceEvent(&handle);
if (trace_object) {
trace_object->Initialize(phase, category_enabled_flag, name, scope, id,
bind_id, num_args, arg_names, arg_types,
arg_values, arg_convertables, flags, timestamp,
CurrentCpuTimestampMicroseconds());
}
return handle;
}

void TracingController::UpdateTraceEventDuration(
const uint8_t* category_enabled_flag, const char* name, uint64_t handle) {
TraceObject* trace_object = trace_buffer_->GetEventByHandle(handle);
Expand Down
93 changes: 91 additions & 2 deletions deps/v8/src/tracing/trace-event.h
Original file line number Diff line number Diff line change
Expand Up @@ -96,6 +96,23 @@ enum CategoryGroupEnabledFlags {
// unsigned int flags)
#define TRACE_EVENT_API_ADD_TRACE_EVENT v8::internal::tracing::AddTraceEventImpl

// Add a trace event to the platform tracing system.
// uint64_t TRACE_EVENT_API_ADD_TRACE_EVENT_WITH_TIMESTAMP(
// char phase,
// const uint8_t* category_group_enabled,
// const char* name,
// const char* scope,
// uint64_t id,
// uint64_t bind_id,
// int num_args,
// const char** arg_names,
// const uint8_t* arg_types,
// const uint64_t* arg_values,
// unsigned int flags,
// int64_t timestamp)
#define TRACE_EVENT_API_ADD_TRACE_EVENT_WITH_TIMESTAMP \
v8::internal::tracing::AddTraceEventWithTimestampImpl

// Set the duration field of a COMPLETE trace event.
// void TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(
// const uint8_t* category_group_enabled,
Expand Down Expand Up @@ -212,10 +229,18 @@ enum CategoryGroupEnabledFlags {
} \
} while (0)

// Adds a trace event with a given timestamp. Not Implemented.
// Adds a trace event with a given timestamp.
#define INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(phase, category_group, name, \
timestamp, flags, ...) \
UNIMPLEMENTED()
do { \
INTERNAL_TRACE_EVENT_GET_CATEGORY_INFO(category_group); \
if (INTERNAL_TRACE_EVENT_CATEGORY_GROUP_ENABLED_FOR_RECORDING_MODE()) { \
v8::internal::tracing::AddTraceEventWithTimestamp( \
phase, INTERNAL_TRACE_EVENT_UID(category_group_enabled), name, \
v8::internal::tracing::kGlobalScope, v8::internal::tracing::kNoId, \
v8::internal::tracing::kNoId, flags, timestamp, ##__VA_ARGS__); \
} \
} while (0)

// Adds a trace event with a given id and timestamp. Not Implemented.
#define INTERNAL_TRACE_EVENT_ADD_WITH_ID_AND_TIMESTAMP( \
Expand Down Expand Up @@ -431,6 +456,28 @@ static V8_INLINE uint64_t AddTraceEventImpl(
arg_values, arg_convertables, flags);
}

static V8_INLINE uint64_t AddTraceEventWithTimestampImpl(
char phase, const uint8_t* category_group_enabled, const char* name,
const char* scope, uint64_t id, uint64_t bind_id, int32_t num_args,
const char** arg_names, const uint8_t* arg_types,
const uint64_t* arg_values, unsigned int flags, int64_t timestamp) {
std::unique_ptr<ConvertableToTraceFormat> arg_convertables[2];
if (num_args > 0 && arg_types[0] == TRACE_VALUE_TYPE_CONVERTABLE) {
arg_convertables[0].reset(reinterpret_cast<ConvertableToTraceFormat*>(
static_cast<intptr_t>(arg_values[0])));
}
if (num_args > 1 && arg_types[1] == TRACE_VALUE_TYPE_CONVERTABLE) {
arg_convertables[1].reset(reinterpret_cast<ConvertableToTraceFormat*>(
static_cast<intptr_t>(arg_values[1])));
}
DCHECK_LE(num_args, 2);
v8::TracingController* controller =
v8::internal::tracing::TraceEventHelper::GetTracingController();
return controller->AddTraceEventWithTimestamp(
phase, category_group_enabled, name, scope, id, bind_id, num_args,
arg_names, arg_types, arg_values, arg_convertables, flags, timestamp);
}

// Define SetTraceValue for each allowed type. It stores the type and
// value in the return arguments. This allows this API to avoid declaring any
// structures so that it is portable to third_party libraries.
Expand Down Expand Up @@ -533,6 +580,48 @@ static V8_INLINE uint64_t AddTraceEvent(
arg_names, arg_types, arg_values, flags);
}

static V8_INLINE uint64_t AddTraceEventWithTimestamp(
char phase, const uint8_t* category_group_enabled, const char* name,
const char* scope, uint64_t id, uint64_t bind_id, unsigned int flags,
int64_t timestamp) {
return TRACE_EVENT_API_ADD_TRACE_EVENT_WITH_TIMESTAMP(
phase, category_group_enabled, name, scope, id, bind_id, kZeroNumArgs,
nullptr, nullptr, nullptr, flags, timestamp);
}

template <class ARG1_TYPE>
static V8_INLINE uint64_t AddTraceEventWithTimestamp(
char phase, const uint8_t* category_group_enabled, const char* name,
const char* scope, uint64_t id, uint64_t bind_id, unsigned int flags,
int64_t timestamp, const char* arg1_name, ARG1_TYPE&& arg1_val) {
const int num_args = 1;
uint8_t arg_type;
uint64_t arg_value;
SetTraceValue(std::forward<ARG1_TYPE>(arg1_val), &arg_type, &arg_value);
return TRACE_EVENT_API_ADD_TRACE_EVENT_WITH_TIMESTAMP(
phase, category_group_enabled, name, scope, id, bind_id, num_args,
&arg1_name, &arg_type, &arg_value, flags, timestamp);
}

template <class ARG1_TYPE, class ARG2_TYPE>
static V8_INLINE uint64_t AddTraceEventWithTimestamp(
char phase, const uint8_t* category_group_enabled, const char* name,
const char* scope, uint64_t id, uint64_t bind_id, unsigned int flags,
int64_t timestamp, const char* arg1_name, ARG1_TYPE&& arg1_val,
const char* arg2_name, ARG2_TYPE&& arg2_val) {
const int num_args = 2;
const char* arg_names[2] = {arg1_name, arg2_name};
unsigned char arg_types[2];
uint64_t arg_values[2];
SetTraceValue(std::forward<ARG1_TYPE>(arg1_val), &arg_types[0],
&arg_values[0]);
SetTraceValue(std::forward<ARG2_TYPE>(arg2_val), &arg_types[1],
&arg_values[1]);
return TRACE_EVENT_API_ADD_TRACE_EVENT_WITH_TIMESTAMP(
phase, category_group_enabled, name, scope, id, bind_id, num_args,
arg_names, arg_types, arg_values, flags, timestamp);
}

// Used by TRACE_EVENTx macros. Do not use directly.
class ScopedTracer {
public:
Expand Down
43 changes: 39 additions & 4 deletions deps/v8/test/cctest/test-trace-event.cc
Original file line number Diff line number Diff line change
Expand Up @@ -22,14 +22,16 @@ struct MockTraceObject {
uint64_t bind_id;
int num_args;
unsigned int flags;
int64_t timestamp;
MockTraceObject(char phase, std::string name, uint64_t id, uint64_t bind_id,
int num_args, int flags)
int num_args, int flags, int64_t timestamp)
: phase(phase),
name(name),
id(id),
bind_id(bind_id),
num_args(num_args),
flags(flags) {}
flags(flags),
timestamp(timestamp) {}
};

typedef std::vector<MockTraceObject*> MockTraceObjectList;
Expand All @@ -51,8 +53,20 @@ class MockTracingController : public v8::TracingController {
const uint64_t* arg_values,
std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
unsigned int flags) override {
MockTraceObject* to = new MockTraceObject(phase, std::string(name), id,
bind_id, num_args, flags);
return AddTraceEventWithTimestamp(
phase, category_enabled_flag, name, scope, id, bind_id, num_args,
arg_names, arg_types, arg_values, arg_convertables, flags, 0);
}

uint64_t AddTraceEventWithTimestamp(
char phase, const uint8_t* category_enabled_flag, const char* name,
const char* scope, uint64_t id, uint64_t bind_id, int num_args,
const char** arg_names, const uint8_t* arg_types,
const uint64_t* arg_values,
std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
unsigned int flags, int64_t timestamp) override {
MockTraceObject* to = new MockTraceObject(
phase, std::string(name), id, bind_id, num_args, flags, timestamp);
trace_object_list_.push_back(to);
return 0;
}
Expand Down Expand Up @@ -239,3 +253,24 @@ TEST(TestEventInContext) {
CHECK_EQ("Isolate", GET_TRACE_OBJECT(2)->name);
CHECK_EQ(isolate_id, GET_TRACE_OBJECT(2)->id);
}

TEST(TestEventWithTimestamp) {
MockTracingPlatform platform;

TRACE_EVENT_INSTANT_WITH_TIMESTAMP0("v8-cat", "0arg",
TRACE_EVENT_SCOPE_GLOBAL, 1729);
TRACE_EVENT_INSTANT_WITH_TIMESTAMP1("v8-cat", "1arg",
TRACE_EVENT_SCOPE_GLOBAL, 4104, "val", 1);
TRACE_EVENT_MARK_WITH_TIMESTAMP2("v8-cat", "mark", 13832, "a", 1, "b", 2);

CHECK_EQ(3, GET_TRACE_OBJECTS_LIST->size());

CHECK_EQ(1729, GET_TRACE_OBJECT(0)->timestamp);
CHECK_EQ(0, GET_TRACE_OBJECT(0)->num_args);

CHECK_EQ(4104, GET_TRACE_OBJECT(1)->timestamp);
CHECK_EQ(1, GET_TRACE_OBJECT(1)->num_args);

CHECK_EQ(13832, GET_TRACE_OBJECT(2)->timestamp);
CHECK_EQ(2, GET_TRACE_OBJECT(2)->num_args);
}

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