v8/test/cctest/test-alloc.cc
bmeurer@chromium.org 2fdadd7794 Drop OS::IsOutsideAllocatedSpace() and move the tracking to the MemoryAllocator.
Instead of globally tracking allocated space limits, which was
not implemented properly anyway (i.e. lack of synchronization
on the reading side), track it per MemoryAllocator (that is
per heap/isolate).

In particular, avoid to call IsBadWritePtr() on Windows, it is
obsolete and Microsoft strongly discourages its usage.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23903008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-05 08:17:57 +00:00

229 lines
8.2 KiB
C++

// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "v8.h"
#include "accessors.h"
#include "cctest.h"
using namespace v8::internal;
static MaybeObject* AllocateAfterFailures() {
static int attempts = 0;
if (++attempts < 3) return Failure::RetryAfterGC();
Heap* heap = Isolate::Current()->heap();
// New space.
SimulateFullSpace(heap->new_space());
CHECK(!heap->AllocateByteArray(100)->IsFailure());
CHECK(!heap->AllocateFixedArray(100, NOT_TENURED)->IsFailure());
// Make sure we can allocate through optimized allocation functions
// for specific kinds.
CHECK(!heap->AllocateFixedArray(100)->IsFailure());
CHECK(!heap->AllocateHeapNumber(0.42)->IsFailure());
CHECK(!heap->AllocateArgumentsObject(Smi::FromInt(87), 10)->IsFailure());
Object* object = heap->AllocateJSObject(
*Isolate::Current()->object_function())->ToObjectChecked();
CHECK(!heap->CopyJSObject(JSObject::cast(object))->IsFailure());
// Old data space.
SimulateFullSpace(heap->old_data_space());
CHECK(!heap->AllocateRawOneByteString(100, TENURED)->IsFailure());
// Old pointer space.
SimulateFullSpace(heap->old_pointer_space());
CHECK(!heap->AllocateFixedArray(10000, TENURED)->IsFailure());
// Large object space.
static const int kLargeObjectSpaceFillerLength = 300000;
static const int kLargeObjectSpaceFillerSize = FixedArray::SizeFor(
kLargeObjectSpaceFillerLength);
ASSERT(kLargeObjectSpaceFillerSize > heap->old_pointer_space()->AreaSize());
while (heap->OldGenerationSpaceAvailable() > kLargeObjectSpaceFillerSize) {
CHECK(!heap->AllocateFixedArray(kLargeObjectSpaceFillerLength, TENURED)->
IsFailure());
}
CHECK(!heap->AllocateFixedArray(kLargeObjectSpaceFillerLength, TENURED)->
IsFailure());
// Map space.
SimulateFullSpace(heap->map_space());
int instance_size = JSObject::kHeaderSize;
CHECK(!heap->AllocateMap(JS_OBJECT_TYPE, instance_size)->IsFailure());
// Test that we can allocate in old pointer space and code space.
SimulateFullSpace(heap->code_space());
CHECK(!heap->AllocateFixedArray(100, TENURED)->IsFailure());
CHECK(!heap->CopyCode(Isolate::Current()->builtins()->builtin(
Builtins::kIllegal))->IsFailure());
// Return success.
return Smi::FromInt(42);
}
static Handle<Object> Test() {
CALL_HEAP_FUNCTION(ISOLATE, AllocateAfterFailures(), Object);
}
TEST(StressHandles) {
v8::HandleScope scope(v8::Isolate::GetCurrent());
v8::Handle<v8::Context> env = v8::Context::New(v8::Isolate::GetCurrent());
env->Enter();
Handle<Object> o = Test();
CHECK(o->IsSmi() && Smi::cast(*o)->value() == 42);
env->Exit();
}
static MaybeObject* TestAccessorGet(Isolate* isolate, Object* object, void*) {
return AllocateAfterFailures();
}
const AccessorDescriptor kDescriptor = {
TestAccessorGet,
0,
0
};
TEST(StressJS) {
Isolate* isolate = Isolate::Current();
Factory* factory = isolate->factory();
v8::HandleScope scope(v8::Isolate::GetCurrent());
v8::Handle<v8::Context> env = v8::Context::New(v8::Isolate::GetCurrent());
env->Enter();
Handle<JSFunction> function =
factory->NewFunction(factory->function_string(), factory->null_value());
// Force the creation of an initial map and set the code to
// something empty.
factory->NewJSObject(function);
function->ReplaceCode(Isolate::Current()->builtins()->builtin(
Builtins::kEmptyFunction));
// Patch the map to have an accessor for "get".
Handle<Map> map(function->initial_map());
Handle<DescriptorArray> instance_descriptors(map->instance_descriptors());
Handle<Foreign> foreign = factory->NewForeign(&kDescriptor);
Handle<String> name =
factory->NewStringFromAscii(Vector<const char>("get", 3));
ASSERT(instance_descriptors->IsEmpty());
Handle<DescriptorArray> new_descriptors = factory->NewDescriptorArray(0, 1);
v8::internal::DescriptorArray::WhitenessWitness witness(*new_descriptors);
map->set_instance_descriptors(*new_descriptors);
CallbacksDescriptor d(*name,
*foreign,
static_cast<PropertyAttributes>(0));
map->AppendDescriptor(&d, witness);
// Add the Foo constructor the global object.
env->Global()->Set(v8::String::New("Foo"), v8::Utils::ToLocal(function));
// Call the accessor through JavaScript.
v8::Handle<v8::Value> result =
v8::Script::Compile(v8::String::New("(new Foo).get"))->Run();
CHECK_EQ(42, result->Int32Value());
env->Exit();
}
// CodeRange test.
// Tests memory management in a CodeRange by allocating and freeing blocks,
// using a pseudorandom generator to choose block sizes geometrically
// distributed between 2 * Page::kPageSize and 2^5 + 1 * Page::kPageSize.
// Ensure that the freed chunks are collected and reused by allocating (in
// total) more than the size of the CodeRange.
// This pseudorandom generator does not need to be particularly good.
// Use the lower half of the V8::Random() generator.
unsigned int Pseudorandom() {
static uint32_t lo = 2345;
lo = 18273 * (lo & 0xFFFF) + (lo >> 16); // Provably not 0.
return lo & 0xFFFF;
}
// Plain old data class. Represents a block of allocated memory.
class Block {
public:
Block(Address base_arg, int size_arg)
: base(base_arg), size(size_arg) {}
Address base;
int size;
};
TEST(CodeRange) {
const int code_range_size = 32*MB;
CcTest::InitializeVM();
CodeRange code_range(reinterpret_cast<Isolate*>(CcTest::isolate()));
code_range.SetUp(code_range_size);
int current_allocated = 0;
int total_allocated = 0;
List<Block> blocks(1000);
while (total_allocated < 5 * code_range_size) {
if (current_allocated < code_range_size / 10) {
// Allocate a block.
// Geometrically distributed sizes, greater than
// Page::kMaxNonCodeHeapObjectSize (which is greater than code page area).
// TODO(gc): instead of using 3 use some contant based on code_range_size
// kMaxHeapObjectSize.
size_t requested =
(Page::kMaxNonCodeHeapObjectSize << (Pseudorandom() % 3)) +
Pseudorandom() % 5000 + 1;
size_t allocated = 0;
Address base = code_range.AllocateRawMemory(requested,
requested,
&allocated);
CHECK(base != NULL);
blocks.Add(Block(base, static_cast<int>(allocated)));
current_allocated += static_cast<int>(allocated);
total_allocated += static_cast<int>(allocated);
} else {
// Free a block.
int index = Pseudorandom() % blocks.length();
code_range.FreeRawMemory(blocks[index].base, blocks[index].size);
current_allocated -= blocks[index].size;
if (index < blocks.length() - 1) {
blocks[index] = blocks.RemoveLast();
} else {
blocks.RemoveLast();
}
}
}
code_range.TearDown();
}