6b95a0e999
There are many subclasses of the Memory class and the overwhelming majority of them don't need to be exposed externally. We move all of them to internal headers except MemoryOfflineBuffer, which moves to a separate header. This dramatically reduces the exposed API surface and makes the code more modular. Also, remove the Offline code from libbacktrace. It's not used any where. Test: Unit tests pass, clean tree still builds Change-Id: I55dacdf080daba0bfe65c1ad53a4b326bb482e83
89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdint.h>
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#include <vector>
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#include <gtest/gtest.h>
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#include "MemoryFake.h"
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#include "MemoryRange.h"
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namespace unwindstack {
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class MemoryRangesTest : public ::testing::Test {
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protected:
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void SetUp() override {
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MemoryFake* memory = new MemoryFake;
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process_memory_.reset(memory);
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memory->SetMemoryBlock(1000, 5000, 0x15);
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memory->SetMemoryBlock(6000, 12000, 0x26);
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memory->SetMemoryBlock(14000, 20000, 0x37);
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memory->SetMemoryBlock(20000, 22000, 0x48);
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ranges_.reset(new MemoryRanges);
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ranges_->Insert(new MemoryRange(process_memory_, 15000, 100, 4000));
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ranges_->Insert(new MemoryRange(process_memory_, 10000, 2000, 2000));
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ranges_->Insert(new MemoryRange(process_memory_, 3000, 1000, 0));
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ranges_->Insert(new MemoryRange(process_memory_, 19000, 1000, 6000));
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ranges_->Insert(new MemoryRange(process_memory_, 20000, 1000, 7000));
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}
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std::shared_ptr<Memory> process_memory_;
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std::unique_ptr<MemoryRanges> ranges_;
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};
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TEST_F(MemoryRangesTest, read) {
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std::vector<uint8_t> dst(2000);
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size_t bytes = ranges_->Read(0, dst.data(), dst.size());
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ASSERT_EQ(1000UL, bytes);
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for (size_t i = 0; i < bytes; i++) {
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ASSERT_EQ(0x15U, dst[i]) << "Failed at byte " << i;
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}
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bytes = ranges_->Read(2000, dst.data(), dst.size());
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ASSERT_EQ(2000UL, bytes);
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for (size_t i = 0; i < bytes; i++) {
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ASSERT_EQ(0x26U, dst[i]) << "Failed at byte " << i;
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}
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bytes = ranges_->Read(4000, dst.data(), dst.size());
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ASSERT_EQ(100UL, bytes);
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for (size_t i = 0; i < bytes; i++) {
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ASSERT_EQ(0x37U, dst[i]) << "Failed at byte " << i;
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}
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}
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TEST_F(MemoryRangesTest, read_fail) {
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std::vector<uint8_t> dst(4096);
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ASSERT_EQ(0UL, ranges_->Read(1000, dst.data(), dst.size()));
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ASSERT_EQ(0UL, ranges_->Read(5000, dst.data(), dst.size()));
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ASSERT_EQ(0UL, ranges_->Read(8000, dst.data(), dst.size()));
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}
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TEST_F(MemoryRangesTest, read_across_ranges) {
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// The MemoryRanges object does not support reading across a range,
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// so this will only read in the first range.
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std::vector<uint8_t> dst(4096);
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size_t bytes = ranges_->Read(6000, dst.data(), dst.size());
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ASSERT_EQ(1000UL, bytes);
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for (size_t i = 0; i < bytes; i++) {
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ASSERT_EQ(0x37U, dst[i]) << "Failed at byte " << i;
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}
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}
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} // namespace unwindstack
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