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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/jsapi-tests/testProfileStrings.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jsapi-tests/testProfileStrings.cpp')
-rw-r--r--js/src/jsapi-tests/testProfileStrings.cpp225
1 files changed, 225 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testProfileStrings.cpp b/js/src/jsapi-tests/testProfileStrings.cpp
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+++ b/js/src/jsapi-tests/testProfileStrings.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ *
+ * Tests the stack-based instrumentation profiler on a JSRuntime
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/Atomics.h"
+
+#include "js/CallAndConstruct.h"
+#include "js/ContextOptions.h"
+#include "js/GlobalObject.h"
+#include "js/PropertySpec.h"
+#include "jsapi-tests/tests.h"
+#include "vm/JSContext.h"
+
+static ProfilingStack profilingStack;
+static uint32_t peakStackPointer = 0;
+
+static void reset(JSContext* cx) {
+ profilingStack.stackPointer = 0;
+ cx->runtime()->geckoProfiler().stringsReset();
+ cx->runtime()->geckoProfiler().enableSlowAssertions(true);
+ js::EnableContextProfilingStack(cx, true);
+}
+
+static const JSClass ptestClass = {"Prof", 0};
+
+static bool test_fn(JSContext* cx, unsigned argc, JS::Value* vp) {
+ peakStackPointer = profilingStack.stackPointer;
+ return true;
+}
+
+static bool test_fn2(JSContext* cx, unsigned argc, JS::Value* vp) {
+ JS::RootedValue r(cx);
+ JS::RootedObject global(cx, JS::CurrentGlobalOrNull(cx));
+ return JS_CallFunctionName(cx, global, "d", JS::HandleValueArray::empty(),
+ &r);
+}
+
+static bool enable(JSContext* cx, unsigned argc, JS::Value* vp) {
+ js::EnableContextProfilingStack(cx, true);
+ return true;
+}
+
+static bool disable(JSContext* cx, unsigned argc, JS::Value* vp) {
+ js::EnableContextProfilingStack(cx, false);
+ return true;
+}
+
+static bool Prof(JSContext* cx, unsigned argc, JS::Value* vp) {
+ JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
+ JSObject* obj = JS_NewObjectForConstructor(cx, &ptestClass, args);
+ if (!obj) {
+ return false;
+ }
+ args.rval().setObject(*obj);
+ return true;
+}
+
+static const JSFunctionSpec ptestFunctions[] = {
+ JS_FN("test_fn", test_fn, 0, 0), JS_FN("test_fn2", test_fn2, 0, 0),
+ JS_FN("enable", enable, 0, 0), JS_FN("disable", disable, 0, 0), JS_FS_END};
+
+static JSObject* initialize(JSContext* cx) {
+ js::SetContextProfilingStack(cx, &profilingStack);
+ JS::RootedObject global(cx, JS::CurrentGlobalOrNull(cx));
+ return JS_InitClass(cx, global, nullptr, nullptr, "Prof", Prof, 0, nullptr,
+ ptestFunctions, nullptr, nullptr);
+}
+
+BEGIN_TEST(testProfileStrings_isCalledWithInterpreter) {
+ CHECK(initialize(cx));
+
+ EXEC("function g() { var p = new Prof(); p.test_fn(); }");
+ EXEC("function f() { g(); }");
+ EXEC("function e() { f(); }");
+ EXEC("function d() { e(); }");
+ EXEC("function c() { d(); }");
+ EXEC("function b() { c(); }");
+ EXEC("function a() { b(); }");
+ EXEC("function check() { var p = new Prof(); p.test_fn(); a(); }");
+ EXEC("function check2() { var p = new Prof(); p.test_fn2(); }");
+
+ reset(cx);
+ {
+ JS::RootedValue rval(cx);
+ /* Make sure the stack resets and we have an entry for each stack */
+ CHECK(JS_CallFunctionName(cx, global, "check",
+ JS::HandleValueArray::empty(), &rval));
+ CHECK(profilingStack.stackPointer == 0);
+ CHECK(peakStackPointer >= 8);
+ CHECK(cx->runtime()->geckoProfiler().stringsCount() == 8);
+ /* Make sure the stack resets and we added no new entries */
+ peakStackPointer = 0;
+ CHECK(JS_CallFunctionName(cx, global, "check",
+ JS::HandleValueArray::empty(), &rval));
+ CHECK(profilingStack.stackPointer == 0);
+ CHECK(peakStackPointer >= 8);
+ CHECK(cx->runtime()->geckoProfiler().stringsCount() == 8);
+ }
+ reset(cx);
+ {
+ JS::RootedValue rval(cx);
+ CHECK(JS_CallFunctionName(cx, global, "check2",
+ JS::HandleValueArray::empty(), &rval));
+ CHECK(cx->runtime()->geckoProfiler().stringsCount() == 5);
+ CHECK(peakStackPointer >= 6);
+ CHECK(profilingStack.stackPointer == 0);
+ }
+ return true;
+}
+END_TEST(testProfileStrings_isCalledWithInterpreter)
+
+BEGIN_TEST(testProfileStrings_isCalledWithJIT) {
+ CHECK(initialize(cx));
+
+ EXEC("function g() { var p = new Prof(); p.test_fn(); }");
+ EXEC("function f() { g(); }");
+ EXEC("function e() { f(); }");
+ EXEC("function d() { e(); }");
+ EXEC("function c() { d(); }");
+ EXEC("function b() { c(); }");
+ EXEC("function a() { b(); }");
+ EXEC("function check() { var p = new Prof(); p.test_fn(); a(); }");
+ EXEC("function check2() { var p = new Prof(); p.test_fn2(); }");
+
+ reset(cx);
+ {
+ JS::RootedValue rval(cx);
+ /* Make sure the stack resets and we have an entry for each stack */
+ CHECK(JS_CallFunctionName(cx, global, "check",
+ JS::HandleValueArray::empty(), &rval));
+ CHECK(profilingStack.stackPointer == 0);
+ CHECK(peakStackPointer >= 8);
+
+ /* Make sure the stack resets and we added no new entries */
+ uint32_t cnt = cx->runtime()->geckoProfiler().stringsCount();
+ peakStackPointer = 0;
+ CHECK(JS_CallFunctionName(cx, global, "check",
+ JS::HandleValueArray::empty(), &rval));
+ CHECK(profilingStack.stackPointer == 0);
+ CHECK(cx->runtime()->geckoProfiler().stringsCount() == cnt);
+ CHECK(peakStackPointer >= 8);
+ }
+
+ return true;
+}
+END_TEST(testProfileStrings_isCalledWithJIT)
+
+BEGIN_TEST(testProfileStrings_isCalledWhenError) {
+ CHECK(initialize(cx));
+
+ EXEC("function check2() { throw 'a'; }");
+
+ reset(cx);
+ {
+ JS::RootedValue rval(cx);
+ /* Make sure the stack resets and we have an entry for each stack */
+ bool ok = JS_CallFunctionName(cx, global, "check2",
+ JS::HandleValueArray::empty(), &rval);
+ CHECK(!ok);
+ CHECK(profilingStack.stackPointer == 0);
+ CHECK(cx->runtime()->geckoProfiler().stringsCount() == 1);
+
+ JS_ClearPendingException(cx);
+ }
+
+ return true;
+}
+END_TEST(testProfileStrings_isCalledWhenError)
+
+BEGIN_TEST(testProfileStrings_worksWhenEnabledOnTheFly) {
+ CHECK(initialize(cx));
+
+ EXEC("function b(p) { p.test_fn(); }");
+ EXEC("function a() { var p = new Prof(); p.enable(); b(p); }");
+ reset(cx);
+ js::EnableContextProfilingStack(cx, false);
+ {
+ /* enable it in the middle of JS and make sure things check out */
+ JS::RootedValue rval(cx);
+ JS_CallFunctionName(cx, global, "a", JS::HandleValueArray::empty(), &rval);
+ CHECK(profilingStack.stackPointer == 0);
+ CHECK(peakStackPointer >= 1);
+ CHECK(cx->runtime()->geckoProfiler().stringsCount() == 1);
+ }
+
+ EXEC("function d(p) { p.disable(); }");
+ EXEC("function c() { var p = new Prof(); d(p); }");
+ reset(cx);
+ {
+ /* now disable in the middle of js */
+ JS::RootedValue rval(cx);
+ JS_CallFunctionName(cx, global, "c", JS::HandleValueArray::empty(), &rval);
+ CHECK(profilingStack.stackPointer == 0);
+ }
+
+ EXEC("function e() { var p = new Prof(); d(p); p.enable(); b(p); }");
+ reset(cx);
+ {
+ /* now disable in the middle of js, but re-enable before final exit */
+ JS::RootedValue rval(cx);
+ JS_CallFunctionName(cx, global, "e", JS::HandleValueArray::empty(), &rval);
+ CHECK(profilingStack.stackPointer == 0);
+ CHECK(peakStackPointer >= 3);
+ }
+
+ EXEC("function h() { }");
+ EXEC("function g(p) { p.disable(); for (var i = 0; i < 100; i++) i++; }");
+ EXEC("function f() { g(new Prof()); }");
+ reset(cx);
+ cx->runtime()->geckoProfiler().enableSlowAssertions(false);
+ {
+ JS::RootedValue rval(cx);
+ /* disable, and make sure that if we try to re-enter the JIT the pop
+ * will still happen */
+ JS_CallFunctionName(cx, global, "f", JS::HandleValueArray::empty(), &rval);
+ CHECK(profilingStack.stackPointer == 0);
+ }
+ return true;
+}
+END_TEST(testProfileStrings_worksWhenEnabledOnTheFly)