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 --- js/src/fuzz-tests/testExample.cpp | 61 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 js/src/fuzz-tests/testExample.cpp (limited to 'js/src/fuzz-tests/testExample.cpp') diff --git a/js/src/fuzz-tests/testExample.cpp b/js/src/fuzz-tests/testExample.cpp new file mode 100644 index 0000000000..91ee827d3d --- /dev/null +++ b/js/src/fuzz-tests/testExample.cpp @@ -0,0 +1,61 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * vim: set ts=8 sts=2 et sw=2 tw=80: + */ +/* 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/ScopeExit.h" + +#include "jsapi.h" + +#include "fuzz-tests/tests.h" +#include "vm/Interpreter.h" + +#include "vm/JSContext-inl.h" + +using namespace JS; +using namespace js; + +extern JS::PersistentRootedObject gGlobal; +extern JSContext* gCx; + +static int testExampleInit(int* argc, char*** argv) { + /* This function is called once at startup. You can use it to e.g. read + environment variables to initialize additional options you might need. + Note that `gCx` and `gGlobal` are pre-initialized by the harness. + */ + return 0; +} + +static int testExampleFuzz(const uint8_t* buf, size_t size) { + /* If your code directly or indirectly allocates GC memory, then it makes + sense to attempt and collect that after every iteration. This should detect + GC issues as soon as possible (right after your iteration), rather than + later when your code happens to trigger GC coincidentially. You can of + course disable this code + if it is not required in your use case, which will speed up fuzzing. */ + auto gcGuard = mozilla::MakeScopeExit([&] { + JS::PrepareForFullGC(gCx); + JS::NonIncrementalGC(gCx, JS::GCOptions::Normal, JS::GCReason::API); + }); + + /* Add code here that processes the given buffer. + While doing so, you need to follow these rules: + + 1. Do not modify or free the buffer. Make a copy if necessary. + 2. This function must always return 0. + 3. Do not crash or abort unless the condition constitutes a bug. + 4. You may use the `gGlobal` and `gCx` variables, they are pre-initialized. + 5. Try to keep the effects of this function contained, such that future + calls to this function are not affected. Otherwise you end up with + non-reproducible testcases and coverage measurements will be incorrect. + */ + + return 0; +} + +MOZ_FUZZING_INTERFACE_RAW(testExampleInit, /* init function */ + testExampleFuzz, /* fuzzing function */ + Example /* module name */ +); -- cgit v1.2.3