From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../gtest/DoesntCrossCompartmentBoundaries.cpp | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp (limited to 'devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp') diff --git a/devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp b/devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp new file mode 100644 index 0000000000..6b506aabff --- /dev/null +++ b/devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp @@ -0,0 +1,61 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */ +/* 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/. */ + +// Test that heap snapshots walk the compartment boundaries correctly. + +#include "DevTools.h" + +DEF_TEST(DoesntCrossCompartmentBoundaries, { + // Create a new global to get a new compartment. + JS::RealmOptions options; + // dummy + options.behaviors().setReduceTimerPrecisionCallerType( + JS::RTPCallerTypeToken{0}); + JS::Rooted newGlobal( + cx, JS_NewGlobalObject(cx, getGlobalClass(), nullptr, + JS::FireOnNewGlobalHook, options)); + ASSERT_TRUE(newGlobal); + JS::Compartment* newCompartment = nullptr; + { + JSAutoRealm ar(cx, newGlobal); + ASSERT_TRUE(JS::InitRealmStandardClasses(cx)); + newCompartment = js::GetContextCompartment(cx); + } + ASSERT_TRUE(newCompartment); + ASSERT_NE(newCompartment, compartment); + + // Our set of target compartments is only the pre-existing compartment and + // does not include the new compartment. + JS::CompartmentSet targetCompartments; + ASSERT_TRUE(targetCompartments.put(compartment)); + + FakeNode nodeA; + FakeNode nodeB; + FakeNode nodeC; + + nodeA.compartment = compartment; + nodeB.compartment = nullptr; + nodeC.compartment = newCompartment; + + AddEdge(nodeA, nodeB); + AddEdge(nodeB, nodeC); + + ::testing::NiceMock writer; + + // Should serialize nodeA, because it is in our target compartments. + ExpectWriteNode(writer, nodeA); + + // Should serialize nodeB, because it doesn't belong to a compartment and is + // therefore assumed to be shared. + ExpectWriteNode(writer, nodeB); + + // But we shouldn't ever serialize nodeC. + + JS::AutoCheckCannotGC noGC(cx); + + ASSERT_TRUE(WriteHeapGraph(cx, JS::ubi::Node(&nodeA), writer, + /* wantNames = */ false, &targetCompartments, + noGC)); +}); -- cgit v1.2.3