{"patch":"diff --git a\/scripts\/perf-counters\/Makefile b\/scripts\/perf-counters\/Makefile\nnew file mode 100644\nindex 0000000000..a52850f66d\n--- \/dev\/null\n+++ b\/scripts\/perf-counters\/Makefile\n@@ -0,0 +1,3 @@\n+build\/jsc-perf: src\/*\n+\tmkdir -p build\n+\tg++ -std=c++11 -I\/usr\/include\/webkitgtk-1.0\/ -ljavascriptcoregtk-1.0 src\/jsc-perf.cpp src\/hardware-counter.cpp src\/thread-local.cpp -o build\/jsc-perf\ndiff --git a\/scripts\/perf-counters\/src\/jsc-perf.cpp b\/scripts\/perf-counters\/src\/jsc-perf.cpp\nnew file mode 100644\nindex 0000000000..024fc438dd\n--- \/dev\/null\n+++ b\/scripts\/perf-counters\/src\/jsc-perf.cpp\n@@ -0,0 +1,204 @@\n+\/**\n+ * Copyright 2015, Facebook, Inc.\n+ * All rights reserved.\n+ *\n+ * This source code is licensed under the BSD-style license found in the\n+ * LICENSE file in the root directory of this source tree. An additional grant\n+ * of patent rights can be found in the PATENTS file in the same directory.\n+ *\/\n+\n+#include \n+#include \n+#include \n+\n+#include \n+#include \n+#include \n+\n+#include \n+\n+#include \"hardware-counter.h\"\n+\n+using HPHP::HardwareCounter;\n+\n+void add_native_hook(\n+ JSContextRef ctx,\n+ JSObjectRef obj,\n+ const char *name,\n+ JSObjectCallAsFunctionCallback hook\n+) {\n+ JSStringRef jsName = JSStringCreateWithUTF8CString(name);\n+ JSObjectSetProperty(\n+ ctx,\n+ obj,\n+ jsName,\n+ JSObjectMakeFunctionWithCallback(ctx, jsName, hook),\n+ kJSPropertyAttributeNone,\n+ NULL\n+ );\n+ JSStringRelease(jsName);\n+}\n+\n+static void fprint_value(\n+ FILE *file,\n+ JSContextRef context,\n+ JSValueRef obj\n+) {\n+ JSStringRef jsStr = JSValueToStringCopy(context, obj, NULL);\n+ size_t size = JSStringGetMaximumUTF8CStringSize(jsStr);\n+ char *str = (char *) calloc(\n+ size,\n+ 1\n+ );\n+ JSStringGetUTF8CString(\n+ jsStr,\n+ str,\n+ size\n+ );\n+ JSStringRelease(jsStr);\n+ fprintf(file, \"%s\", str);\n+ free(str);\n+}\n+\n+static JSValueRef js_print(\n+ JSContextRef context,\n+ JSObjectRef object,\n+ JSObjectRef thisObject,\n+ size_t argumentCount,\n+ const JSValueRef arguments[],\n+ JSValueRef *exception\n+) {\n+ for (int i = 0; i < argumentCount; i++) {\n+ if (i != 0) {\n+ printf(\" \");\n+ }\n+ fprint_value(stdout, context, arguments[i]);\n+ }\n+ printf(\"\\n\");\n+ return JSValueMakeUndefined(context);\n+}\n+\n+static JSValueRef js_perf_counters_init(\n+ JSContextRef context,\n+ JSObjectRef object,\n+ JSObjectRef thisObject,\n+ size_t argumentCount,\n+ const JSValueRef arguments[],\n+ JSValueRef *exception\n+) {\n+ \/\/ TODO: Allow customizing recorded events\n+ bool enable = true;\n+ std::string events = \"\";\n+ bool recordSubprocesses = false;\n+ HardwareCounter::Init(enable, events, recordSubprocesses);\n+ HardwareCounter::s_counter.getCheck();\n+\n+ return JSValueMakeUndefined(context);\n+}\n+\n+static JSValueRef js_perf_counters_get_counters(\n+ JSContextRef context,\n+ JSObjectRef object,\n+ JSObjectRef thisObject,\n+ size_t argumentCount,\n+ const JSValueRef arguments[],\n+ JSValueRef *exception\n+) {\n+ JSObjectRef result = JSObjectMake(context, NULL, NULL);\n+ std::pair pair(context, result);\n+\n+ HardwareCounter::GetPerfEvents(\n+ [](const std::string& key, int64_t value, void* data) {\n+ std::pair& pair =\n+ *reinterpret_cast*>(data);\n+ JSContextRef context = pair.first;\n+ JSObjectRef result = pair.second;\n+\n+ JSObjectSetProperty(\n+ context,\n+ result,\n+ JSStringCreateWithUTF8CString(key.c_str()),\n+ JSValueMakeNumber(context, value),\n+ kJSPropertyAttributeNone,\n+ NULL\n+ );\n+ },\n+ &pair);\n+\n+ return result;\n+}\n+\n+int main(int argc, char **argv) {\n+ if (argc != 2) {\n+ fprintf(stderr, \"usage: jsc-runner file\\n\");\n+ exit(1);\n+ }\n+\n+ char *filename = argv[1];\n+ std::ifstream ifs(filename);\n+ if (ifs.fail()) {\n+ std::cerr << \"Error opening \\\"\" << filename << \"\\\": \" << strerror(errno) << \"\\n\";\n+ exit(1);\n+ }\n+ std::string script(\n+ (std::istreambuf_iterator(ifs)),\n+ (std::istreambuf_iterator())\n+ );\n+ JSStringRef jsScript = JSStringCreateWithUTF8CString(script.c_str());\n+ JSStringRef jsURL = JSStringCreateWithUTF8CString(argv[1]);\n+\n+ JSGlobalContextRef ctx = JSGlobalContextCreate(NULL);\n+ add_native_hook(\n+ ctx,\n+ JSContextGetGlobalObject(ctx),\n+ \"print\",\n+ js_print\n+ );\n+\n+ JSObjectRef jsPerfCounters = JSObjectMake(ctx, NULL, NULL);\n+ add_native_hook(\n+ ctx,\n+ jsPerfCounters,\n+ \"init\",\n+ js_perf_counters_init\n+ );\n+ add_native_hook(\n+ ctx,\n+ jsPerfCounters,\n+ \"getCounters\",\n+ js_perf_counters_get_counters\n+ );\n+ JSObjectSetProperty(\n+ ctx,\n+ JSContextGetGlobalObject(ctx),\n+ JSStringCreateWithUTF8CString(\"PerfCounters\"),\n+ jsPerfCounters,\n+ kJSPropertyAttributeNone,\n+ NULL\n+ );\n+\n+ JSValueRef jsError = NULL;\n+ JSValueRef result = JSEvaluateScript(\n+ ctx,\n+ jsScript,\n+ NULL,\n+ jsURL,\n+ 0,\n+ &jsError\n+ );\n+ if (!result) {\n+ fprintf(stderr, \"Exception: \");\n+ fprint_value(stderr, ctx, jsError);\n+ fprintf(stderr, \"\\n\");\n+ JSStringRef jsStackStr = JSStringCreateWithUTF8CString(\"stack\");\n+ if (JSValueIsObject(ctx, jsError)) {\n+ JSValueRef jsStack = JSObjectGetProperty(ctx, (JSObjectRef)jsError, jsStackStr, NULL);\n+ JSStringRelease(jsStackStr);\n+ fprint_value(stderr, ctx, jsStack);\n+ fprintf(stderr, \"\\n\");\n+ }\n+ exit(1);\n+ }\n+\n+ JSGlobalContextRelease(ctx);\n+}\n","files":[{"path":"scripts\/perf-counters\/Makefile","status":"A"},{"path":"scripts\/perf-counters\/src\/jsc-perf.cpp","status":"A"}],"parents":["b5d90f8c6bdc33a45c2fece7f9303bbef94fb0af","3b28c72142ec937ff222463fc33243a9c43d6633"],"body":"Add rudimentary jsc perf-counters runner","commit":{"authorName":"Ben Alpert","authoredAt":"2015-10-30T17:06:30-07:00","shortRevision":"c525732147","authorEmail":"ben@benalpert.com","subject":"Merge pull request #5023 from spicyj\/jsc-perf","revision":"c52573214798a7cc85f2dadef214752c81fa1b9d"}}

dillon1000/react

Files changed