[ReactNative] Add JavaScriptCore legacy profiler

JSCLegacyProfiler/JSCLegacyProfiler.h

@@ -0,0 +1,25 @@
+// Copyright 2004-present Facebook. All Rights Reserved.
+
+#pragma once
+
+#import "JSContextRef.h"
+
+extern "C" {
+
+JSValueRef nativeProfilerStart(
+    JSContextRef ctx,
+    JSObjectRef function,
+    JSObjectRef thisObject,
+    size_t argumentCount,
+    const JSValueRef arguments[],
+    JSValueRef *exception);
+
+JSValueRef nativeProfilerEnd(
+    JSContextRef ctx,
+    JSObjectRef function,
+    JSObjectRef thisObject,
+    size_t argumentCount,
+    const JSValueRef arguments[],
+    JSValueRef *exception);
+
+}

JSCLegacyProfiler/JSCLegacyProfiler.mm

@@ -0,0 +1,161 @@
+//#include "config.h"
+
+#include "JSCLegacyProfiler.h"
+
+#include "APICast.h"
+#include "LegacyProfiler.h"
+#include "OpaqueJSString.h"
+#include "JSProfilerPrivate.h"
+#include "JSStringRef.h"
+
+#include <yajl/yajl_gen.h>
+
+#define GEN_AND_CHECK(expr) \
+  do { \
+    yajl_gen_status GEN_AND_CHECK_status = (expr); \
+    if (GEN_AND_CHECK_status != yajl_gen_status_ok) { \
+      return GEN_AND_CHECK_status; \
+    } \
+  } while (false)
+
+static inline yajl_gen_status yajl_gen_cstring(yajl_gen gen, const char *str) {
+  return yajl_gen_string(gen, (const unsigned char*)str, strlen(str));
+}
+
+static yajl_gen_status append_children_array_json(yajl_gen gen, const JSC::ProfileNode *node);
+static yajl_gen_status append_node_json(yajl_gen gen, const JSC::ProfileNode *node);
+
+static yajl_gen_status append_root_json(yajl_gen gen, const JSC::Profile *profile) {
+  GEN_AND_CHECK(yajl_gen_map_open(gen));
+  GEN_AND_CHECK(yajl_gen_cstring(gen, "rootNodes"));
+  GEN_AND_CHECK(append_children_array_json(gen, profile->head()));
+  GEN_AND_CHECK(yajl_gen_map_close(gen));
+
+  return yajl_gen_status_ok;
+}
+
+static yajl_gen_status append_children_array_json(yajl_gen gen, const JSC::ProfileNode *node) {
+  GEN_AND_CHECK(yajl_gen_array_open(gen));
+  for (RefPtr<JSC::ProfileNode> child : node->children()) {
+    GEN_AND_CHECK(append_node_json(gen, child.get()));
+  }
+  GEN_AND_CHECK(yajl_gen_array_close(gen));
+
+  return yajl_gen_status_ok;
+}
+
+static yajl_gen_status append_node_json(yajl_gen gen, const JSC::ProfileNode *node) {
+  GEN_AND_CHECK(yajl_gen_map_open(gen));
+  GEN_AND_CHECK(yajl_gen_cstring(gen, "id"));
+  GEN_AND_CHECK(yajl_gen_integer(gen, node->id()));
+
+  if (!node->functionName().isEmpty()) {
+    GEN_AND_CHECK(yajl_gen_cstring(gen, "functionName"));
+    GEN_AND_CHECK(yajl_gen_cstring(gen, node->functionName().utf8().data()));
+  }
+
+  if (!node->url().isEmpty()) {
+    GEN_AND_CHECK(yajl_gen_cstring(gen, "url"));
+    GEN_AND_CHECK(yajl_gen_cstring(gen, node->url().utf8().data()));
+    GEN_AND_CHECK(yajl_gen_cstring(gen, "lineNumber"));
+    GEN_AND_CHECK(yajl_gen_integer(gen, node->lineNumber()));
+    GEN_AND_CHECK(yajl_gen_cstring(gen, "columnNumber"));
+    GEN_AND_CHECK(yajl_gen_integer(gen, node->columnNumber()));
+  }
+
+  GEN_AND_CHECK(yajl_gen_cstring(gen, "calls"));
+  GEN_AND_CHECK(yajl_gen_array_open(gen));
+  for (const JSC::ProfileNode::Call &call : node->calls()) {
+    GEN_AND_CHECK(yajl_gen_map_open(gen));
+    GEN_AND_CHECK(yajl_gen_cstring(gen, "startTime"));
+    GEN_AND_CHECK(yajl_gen_double(gen, call.startTime()));
+    GEN_AND_CHECK(yajl_gen_cstring(gen, "totalTime"));
+    GEN_AND_CHECK(yajl_gen_double(gen, call.totalTime()));
+    GEN_AND_CHECK(yajl_gen_map_close(gen));
+  }
+  GEN_AND_CHECK(yajl_gen_array_close(gen));
+
+  if (!node->children().isEmpty()) {
+    GEN_AND_CHECK(yajl_gen_cstring(gen, "children"));
+    GEN_AND_CHECK(append_children_array_json(gen, node));
+  }
+
+  GEN_AND_CHECK(yajl_gen_map_close(gen));
+
+  return yajl_gen_status_ok;
+}
+
+static char *render_error_code(yajl_gen_status status) {
+  char err[1024];
+  snprintf(err, sizeof(err), "{\"error\": %d}", (int)status);
+  return strdup(err);
+}
+
+static char *convert_to_json(const JSC::Profile *profile) {
+  yajl_gen_status status;
+  yajl_gen gen = yajl_gen_alloc(NULL);
+
+  status = append_root_json(gen, profile);
+  if (status != yajl_gen_status_ok) {
+    yajl_gen_free(gen);
+    return render_error_code(status);
+  }
+
+  const unsigned char *buf;
+  size_t buf_size;
+  status = yajl_gen_get_buf(gen, &buf, &buf_size);
+  if (status != yajl_gen_status_ok) {
+    yajl_gen_free(gen);
+    return render_error_code(status);
+  }
+
+  char *json_copy = strdup((const char*)buf);
+  yajl_gen_free(gen);
+  return json_copy;
+}
+
+static char *JSEndProfilingAndRender(JSContextRef ctx, JSStringRef title)
+{
+    JSC::ExecState *exec = toJS(ctx);
+    JSC::LegacyProfiler *profiler = JSC::LegacyProfiler::profiler();
+    RefPtr<JSC::Profile> rawProfile = profiler->stopProfiling(exec, title->string());
+    return convert_to_json(rawProfile.get());
+}
+
+JSValueRef nativeProfilerStart(
+    JSContextRef ctx,
+    JSObjectRef function,
+    JSObjectRef thisObject,
+    size_t argumentCount,
+    const JSValueRef arguments[],
+    JSValueRef *exception) {
+  if (argumentCount < 1) {
+    // Could raise an exception here.
+    return JSValueMakeUndefined(ctx);
+  }
+
+  JSStringRef title = JSValueToStringCopy(ctx, arguments[0], NULL);
+  JSStartProfiling(ctx, title);
+  JSStringRelease(title);
+  return JSValueMakeUndefined(ctx);
+}
+
+JSValueRef nativeProfilerEnd(
+    JSContextRef ctx,
+    JSObjectRef function,
+    JSObjectRef thisObject,
+    size_t argumentCount,
+    const JSValueRef arguments[],
+    JSValueRef *exception) {
+  if (argumentCount < 1) {
+    // Could raise an exception here.
+    return JSValueMakeUndefined(ctx);
+  }
+
+  JSStringRef title = JSValueToStringCopy(ctx, arguments[0], NULL);
+  char *rendered = JSEndProfilingAndRender(ctx, title);
+  JSStringRelease(title);
+  JSStringRef profile = JSStringCreateWithUTF8CString(rendered);
+  free(rendered);
+  return JSValueMakeString(ctx, profile);
+}

JSCLegacyProfiler/Makefile

@@ -0,0 +1,108 @@
+HEADER_PATHS := `find ./tmp/JavaScriptCore -name '*.h' | xargs -I{} dirname {} | uniq | xargs -I{} echo "-I {}"`
+CERT ?= "iPhone Developer"
+
+ios8: prepare build generate
+
+prepare: clean create download
+
+build: x86_64 arm64 armv7
+
+generate:	lipo codesign
+
+clean:
+	@rm -rf tmp/ /tmp/RCTJSCProfiler
+
+lipo:
+	lipo -create -output /tmp/RCTJSCProfiler/RCTJSCProfiler.ios8.dylib ./tmp/RCTJSCProfiler_x86_64 ./tmp/RCTJSCProfiler_arm64 ./tmp/RCTJSCProfiler_armv7
+
+codesign:
+	codesign -f -s ${CERT} /tmp/RCTJSCProfiler/RCTJSCProfiler.ios8.dylib
+
+create:
+	mkdir -p ./tmp /tmp/RCTJSCProfiler/ ./tmp/CoreFoundation ./tmp/Foundation
+	for file in ./tmp/CoreFoundation/CFUserNotification.h ./tmp/CoreFoundation/CFXMLNode.h ./tmp/CoreFoundation/CFXMLParser.h ./tmp/Foundation/Foundation.h; do echo '' > "$$file"; done
+
+download: wtf jsc webcore yajl
+
+wtf:
+	curl -o tmp/WTF.tar.gz http://www.opensource.apple.com/tarballs/WTF/WTF-7600.1.24.tar.gz
+	tar -zxvf tmp/WTF.tar.gz -C tmp
+
+jsc:
+	curl -o tmp/JSC.tar.gz http://www.opensource.apple.com/tarballs/JavaScriptCore/JavaScriptCore-7600.1.17.tar.gz
+	tar -zxvf tmp/JSC.tar.gz -C tmp
+	mv ./tmp/JavaScriptCore-7600.1.17 ./tmp/JavaScriptCore
+	python ./tmp/JavaScriptCore/generate-bytecode-files --bytecodes_h ./tmp/JavaScriptCore/Bytecodes.h ./tmp/JavaScriptCore/bytecode/BytecodeList.json
+
+webcore:
+	curl -o tmp/WebCore.tar.gz http://www.opensource.apple.com/tarballs/WebCore/WebCore-7600.1.25.tar.gz
+	tar -zxvf tmp/WebCore.tar.gz -C tmp
+
+yajl:
+	curl -o tmp/yajl.tar.gz https://codeload.github.com/lloyd/yajl/tar.gz/2.1.0
+	tar -zxvf tmp/yajl.tar.gz -C tmp
+	mkdir -p ./tmp/yajl-2.1.0/build && cd ./tmp/yajl-2.1.0/build && cmake .. && make
+	echo `find . -name '*.c'`
+	cd ./tmp/yajl-2.1.0/src && \
+		clang -arch arm64 -arch armv7 -std=c99 \
+		-I /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk/usr/include/ \
+		-I /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk/usr/include/machine \
+		-I ../build/yajl-2.1.0/include \
+		-c `find . -name '*.c'`
+	libtool -static -o ./tmp/yajl.a `find ./tmp/yajl-2.1.0/src/ -name '*.o'`
+
+x86_64:
+	clang -w -dynamiclib -o ./tmp/RCTJSCProfiler_x86_64 -std=c++11 \
+		-install_name RCTJSCProfiler.ios8.dylib \
+		-include ./tmp/JavaScriptCore/config.h \
+		-I ./tmp \
+		-I ./tmp/WebCore-7600.1.25/icu \
+		-I ./tmp/WTF-7600.1.24 \
+		-I ./tmp/yajl-2.1.0/build/yajl-2.1.0/include \
+		-DNDEBUG=1\
+		-miphoneos-version-min=8.0 \
+		-L /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib \
+		-L /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/system \
+		${HEADER_PATHS} \
+		-undefined dynamic_lookup \
+		./JSCLegacyProfiler.mm ./tmp/yajl-2.1.0/build/yajl-2.1.0/lib/libyajl_s.a
+
+arm64:
+	echo $(HEADER_PATHS)
+	clang -w -dynamiclib -o ./tmp/RCTJSCProfiler_arm64 -std=c++11 \
+		-install_name RCTJSCProfiler.ios8.dylib \
+		-arch arm64 \
+		-include ./tmp/JavaScriptCore/config.h \
+		-I ./tmp \
+		-I ./tmp/WebCore-7600.1.25/icu \
+		-I ./tmp/WTF-7600.1.24 \
+		-I ./tmp/yajl-2.1.0/build/yajl-2.1.0/include \
+		-I /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk/usr/include \
+		-I /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk/usr/include/machine \
+		-DNDEBUG=1\
+		-miphoneos-version-min=8.0 \
+		-L /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk/usr/lib \
+		-L /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk/usr/lib/system \
+		${HEADER_PATHS} \
+		-undefined dynamic_lookup \
+		./JSCLegacyProfiler.mm ./tmp/yajl.a
+
+armv7:
+	clang -w -dynamiclib -o ./tmp/RCTJSCProfiler_armv7 -std=c++11 \
+		-install_name RCTJSCProfiler.ios8.dylib \
+		-arch armv7 \
+		-include ./tmp/JavaScriptCore/config.h \
+		-I ./tmp \
+		-I ./tmp/WebCore-7600.1.25/icu \
+		-I ./tmp/WTF-7600.1.24 \
+		-I ./tmp/yajl-2.1.0/build/yajl-2.1.0/include \
+		-I /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk/usr/include \
+		-DNDEBUG=1\
+		-miphoneos-version-min=8.0 \
+		-L /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk/usr/lib \
+		-L /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk/usr/lib/system \
+		${HEADER_PATHS} \
+		-undefined dynamic_lookup \
+		./JSCLegacyProfiler.mm ./tmp/yajl.a
+
+.PHONY: ios8