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-rw-r--r--src/node.cc112
1 files changed, 73 insertions, 39 deletions
diff --git a/src/node.cc b/src/node.cc
index 3147a90d3e..1302dfed16 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -38,6 +38,7 @@
#include "req-wrap.h"
#include "req-wrap-inl.h"
#include "string_bytes.h"
+#include "tracing/agent.h"
#include "util.h"
#include "uv.h"
#if NODE_USE_V8_PLATFORM
@@ -150,6 +151,8 @@ static node_module* modpending;
static node_module* modlist_builtin;
static node_module* modlist_linked;
static node_module* modlist_addon;
+static bool trace_enabled = false;
+static const char* trace_enabled_categories = nullptr;
#if defined(NODE_HAVE_I18N_SUPPORT)
// Path to ICU data (for i18n / Intl)
@@ -186,6 +189,7 @@ static uv_async_t dispatch_debug_messages_async;
static Mutex node_isolate_mutex;
static v8::Isolate* node_isolate;
+static tracing::Agent* tracing_agent;
static node::DebugOptions debug_options;
@@ -194,6 +198,7 @@ static struct {
void Initialize(int thread_pool_size) {
platform_ = v8::platform::CreateDefaultPlatform(thread_pool_size);
V8::InitializePlatform(platform_);
+ tracing::TraceEventHelper::SetCurrentPlatform(platform_);
}
void PumpMessageLoop(Isolate* isolate) {
@@ -3368,6 +3373,9 @@ void SetupProcessObject(Environment* env,
void SignalExit(int signo) {
uv_tty_reset_mode();
+ if (trace_enabled) {
+ tracing_agent->Stop();
+ }
#ifdef __FreeBSD__
// FreeBSD has a nasty bug, see RegisterSignalHandler for details
struct sigaction sa;
@@ -3463,64 +3471,70 @@ static void PrintHelp() {
" node debug script.js [arguments] \n"
"\n"
"Options:\n"
- " -v, --version print Node.js version\n"
- " -e, --eval script evaluate script\n"
- " -p, --print evaluate script and print result\n"
- " -c, --check syntax check script without executing\n"
- " -i, --interactive always enter the REPL even if stdin\n"
- " does not appear to be a terminal\n"
- " -r, --require module to preload (option can be repeated)\n"
- " --no-deprecation silence deprecation warnings\n"
- " --trace-deprecation show stack traces on deprecations\n"
- " --throw-deprecation throw an exception anytime a deprecated "
+ " -v, --version print Node.js version\n"
+ " -e, --eval script evaluate script\n"
+ " -p, --print evaluate script and print result\n"
+ " -c, --check syntax check script without executing\n"
+ " -i, --interactive always enter the REPL even if stdin\n"
+ " does not appear to be a terminal\n"
+ " -r, --require module to preload (option can be "
+ "repeated)\n"
+ " --no-deprecation silence deprecation warnings\n"
+ " --trace-deprecation show stack traces on deprecations\n"
+ " --throw-deprecation throw an exception anytime a deprecated "
"function is used\n"
- " --no-warnings silence all process warnings\n"
- " --trace-warnings show stack traces on process warnings\n"
- " --trace-sync-io show stack trace when use of sync IO\n"
- " is detected after the first tick\n"
- " --track-heap-objects track heap object allocations for heap "
+ " --no-warnings silence all process warnings\n"
+ " --trace-warnings show stack traces on process warnings\n"
+ " --trace-sync-io show stack trace when use of sync IO\n"
+ " is detected after the first tick\n"
+ " --trace-events-enabled track trace events\n"
+ " --trace-event-categories comma separated list of trace event\n"
+ " categories to record\n"
+ " --track-heap-objects track heap object allocations for heap "
"snapshots\n"
- " --prof-process process v8 profiler output generated\n"
- " using --prof\n"
- " --zero-fill-buffers automatically zero-fill all newly allocated\n"
- " Buffer and SlowBuffer instances\n"
- " --v8-options print v8 command line options\n"
- " --v8-pool-size=num set v8's thread pool size\n"
+ " --prof-process process v8 profiler output generated\n"
+ " using --prof\n"
+ " --zero-fill-buffers automatically zero-fill all newly "
+ "allocated\n"
+ " Buffer and SlowBuffer instances\n"
+ " --v8-options print v8 command line options\n"
+ " --v8-pool-size=num set v8's thread pool size\n"
#if HAVE_OPENSSL
- " --tls-cipher-list=val use an alternative default TLS cipher list\n"
+ " --tls-cipher-list=val use an alternative default TLS cipher "
+ "list\n"
#if NODE_FIPS_MODE
- " --enable-fips enable FIPS crypto at startup\n"
- " --force-fips force FIPS crypto (cannot be disabled)\n"
+ " --enable-fips enable FIPS crypto at startup\n"
+ " --force-fips force FIPS crypto (cannot be disabled)\n"
#endif /* NODE_FIPS_MODE */
- " --openssl-config=path load OpenSSL configuration file from the\n"
- " specified path\n"
+ " --openssl-config=path load OpenSSL configuration file from the\n"
+ " specified path\n"
#endif /* HAVE_OPENSSL */
#if defined(NODE_HAVE_I18N_SUPPORT)
- " --icu-data-dir=dir set ICU data load path to dir\n"
- " (overrides NODE_ICU_DATA)\n"
+ " --icu-data-dir=dir set ICU data load path to dir\n"
+ " (overrides NODE_ICU_DATA)\n"
#if !defined(NODE_HAVE_SMALL_ICU)
- " note: linked-in ICU data is\n"
- " present.\n"
+ " note: linked-in ICU data is\n"
+ " present.\n"
#endif
- " --preserve-symlinks preserve symbolic links when resolving\n"
- " and caching modules.\n"
+ " --preserve-symlinks preserve symbolic links when resolving\n"
+ " and caching modules.\n"
#endif
"\n"
"Environment variables:\n"
#ifdef _WIN32
- "NODE_PATH ';'-separated list of directories\n"
+ "NODE_PATH ';'-separated list of directories\n"
#else
- "NODE_PATH ':'-separated list of directories\n"
+ "NODE_PATH ':'-separated list of directories\n"
#endif
- " prefixed to the module search path.\n"
- "NODE_DISABLE_COLORS set to 1 to disable colors in the REPL\n"
+ " prefixed to the module search path.\n"
+ "NODE_DISABLE_COLORS set to 1 to disable colors in the REPL\n"
#if defined(NODE_HAVE_I18N_SUPPORT)
- "NODE_ICU_DATA data path for ICU (Intl object) data\n"
+ "NODE_ICU_DATA data path for ICU (Intl object) data\n"
#if !defined(NODE_HAVE_SMALL_ICU)
- " (will extend linked-in data)\n"
+ " (will extend linked-in data)\n"
#endif
#endif
- "NODE_REPL_HISTORY path to the persistent REPL history file\n"
+ "NODE_REPL_HISTORY path to the persistent REPL history file\n"
"\n"
"Documentation can be found at https://nodejs.org/\n");
}
@@ -3626,6 +3640,16 @@ static void ParseArgs(int* argc,
trace_deprecation = true;
} else if (strcmp(arg, "--trace-sync-io") == 0) {
trace_sync_io = true;
+ } else if (strcmp(arg, "--trace-events-enabled") == 0) {
+ trace_enabled = true;
+ } else if (strcmp(arg, "--trace-event-categories") == 0) {
+ const char* categories = argv[index + 1];
+ if (categories == nullptr) {
+ fprintf(stderr, "%s: %s requires an argument\n", argv[0], arg);
+ exit(9);
+ }
+ args_consumed += 1;
+ trace_enabled_categories = categories;
} else if (strcmp(arg, "--track-heap-objects") == 0) {
track_heap_objects = true;
} else if (strcmp(arg, "--throw-deprecation") == 0) {
@@ -4454,10 +4478,20 @@ int Start(int argc, char** argv) {
#endif
v8_platform.Initialize(v8_thread_pool_size);
+ // Enable tracing when argv has --trace-events-enabled.
+ if (trace_enabled) {
+ fprintf(stderr, "Warning: Trace event is an experimental feature "
+ "and could change at any time.\n");
+ tracing_agent = new tracing::Agent();
+ tracing_agent->Start(v8_platform.platform_, trace_enabled_categories);
+ }
V8::Initialize();
v8_initialized = true;
const int exit_code =
Start(uv_default_loop(), argc, argv, exec_argc, exec_argv);
+ if (trace_enabled) {
+ tracing_agent->Stop();
+ }
v8_initialized = false;
V8::Dispose();
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-13 22:39:37 +0000