mirror of
https://github.com/chromium/crashpad.git
synced 2025-01-04 12:45:26 +08:00
63ccbd0e4c
This was missed in Crashpad 8c35d92ae403. It syncs with Chromium 16289b3ef759. Change-Id: I7e92e71fc940e25e751e7487d100b5684bdbf667 Reviewed-on: https://chromium-review.googlesource.com/535577 Commit-Queue: Mark Mentovai <mark@chromium.org> Reviewed-by: Scott Graham <scottmg@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
|
||
//
|
||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
// you may not use this file except in compliance with the License.
|
||
// You may obtain a copy of the License at
|
||
//
|
||
// http://www.apache.org/licenses/LICENSE-2.0
|
||
//
|
||
// Unless required by applicable law or agreed to in writing, software
|
||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
// See the License for the specific language governing permissions and
|
||
// limitations under the License.
|
||
|
||
#include "util/stdlib/aligned_allocator.h"
|
||
|
||
#include <stdint.h>
|
||
|
||
#include "base/compiler_specific.h"
|
||
#include "gtest/gtest.h"
|
||
|
||
#if defined(OS_WIN)
|
||
#include <crtdbg.h>
|
||
#endif
|
||
|
||
namespace crashpad {
|
||
namespace test {
|
||
namespace {
|
||
|
||
bool IsAligned(void* pointer, size_t alignment) {
|
||
uintptr_t address = reinterpret_cast<uintptr_t>(pointer);
|
||
return (address & (alignment - 1)) == 0;
|
||
}
|
||
|
||
TEST(AlignedAllocator, AlignedVector) {
|
||
// Test a structure with natural alignment.
|
||
struct NaturalAlignedStruct {
|
||
int i;
|
||
};
|
||
|
||
AlignedVector<NaturalAlignedStruct> natural_aligned_vector;
|
||
natural_aligned_vector.push_back(NaturalAlignedStruct());
|
||
EXPECT_TRUE(
|
||
IsAligned(&natural_aligned_vector[0], alignof(NaturalAlignedStruct)));
|
||
|
||
natural_aligned_vector.resize(3);
|
||
EXPECT_TRUE(
|
||
IsAligned(&natural_aligned_vector[0], alignof(NaturalAlignedStruct)));
|
||
EXPECT_TRUE(
|
||
IsAligned(&natural_aligned_vector[1], alignof(NaturalAlignedStruct)));
|
||
EXPECT_TRUE(
|
||
IsAligned(&natural_aligned_vector[2], alignof(NaturalAlignedStruct)));
|
||
|
||
// Test a structure that declares its own alignment.
|
||
struct alignas(32) AlignedStruct {
|
||
int i;
|
||
};
|
||
ASSERT_EQ(alignof(AlignedStruct), 32u);
|
||
|
||
AlignedVector<AlignedStruct> aligned_vector;
|
||
aligned_vector.push_back(AlignedStruct());
|
||
EXPECT_TRUE(IsAligned(&aligned_vector[0], alignof(AlignedStruct)));
|
||
|
||
aligned_vector.resize(3);
|
||
EXPECT_TRUE(IsAligned(&aligned_vector[0], alignof(AlignedStruct)));
|
||
EXPECT_TRUE(IsAligned(&aligned_vector[1], alignof(AlignedStruct)));
|
||
EXPECT_TRUE(IsAligned(&aligned_vector[2], alignof(AlignedStruct)));
|
||
|
||
// Try a custom alignment. Since the structure itself doesn’t specify an
|
||
// alignment constraint, only the base address will be aligned to the
|
||
// requested boundary.
|
||
AlignedVector<NaturalAlignedStruct, 64> custom_aligned_vector;
|
||
custom_aligned_vector.push_back(NaturalAlignedStruct());
|
||
EXPECT_TRUE(IsAligned(&custom_aligned_vector[0], 64));
|
||
|
||
// Try a structure with a pretty big alignment request.
|
||
struct alignas(1024) BigAlignedStruct {
|
||
int i;
|
||
};
|
||
ASSERT_EQ(alignof(BigAlignedStruct), 1024u);
|
||
|
||
AlignedVector<BigAlignedStruct> big_aligned_vector;
|
||
big_aligned_vector.push_back(BigAlignedStruct());
|
||
EXPECT_TRUE(IsAligned(&big_aligned_vector[0], alignof(BigAlignedStruct)));
|
||
|
||
big_aligned_vector.resize(3);
|
||
EXPECT_TRUE(IsAligned(&big_aligned_vector[0], alignof(BigAlignedStruct)));
|
||
EXPECT_TRUE(IsAligned(&big_aligned_vector[1], alignof(BigAlignedStruct)));
|
||
EXPECT_TRUE(IsAligned(&big_aligned_vector[2], alignof(BigAlignedStruct)));
|
||
}
|
||
|
||
void BadAlignmentTest() {
|
||
#if defined(OS_WIN)
|
||
// Suppress the assertion MessageBox() normally displayed by the CRT in debug
|
||
// mode.
|
||
int previous = _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG);
|
||
|
||
// In release mode, _CrtSetReportMode() is #defined to ((int)0), so |previous|
|
||
// would appear unused.
|
||
ALLOW_UNUSED_LOCAL(previous);
|
||
#endif
|
||
|
||
// Alignment constraints must be powers of 2. 7 is not valid.
|
||
AlignedVector<int, 7> bad_aligned_vector;
|
||
bad_aligned_vector.push_back(0);
|
||
|
||
#if defined(OS_WIN)
|
||
_CrtSetReportMode(_CRT_ASSERT, previous);
|
||
#endif
|
||
}
|
||
|
||
TEST(AlignedAllocatorDeathTest, BadAlignment) {
|
||
ASSERT_DEATH(BadAlignmentTest(), "");
|
||
}
|
||
|
||
} // namespace
|
||
} // namespace test
|
||
} // namespace crashpad
|