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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/android/library_loader/library_prefetcher.h" | |
| 6 | |
| 7 #include <string> | |
| 8 #include <vector> | |
| 9 #include "base/debug/proc_maps_linux.h" | |
| 10 #include "testing/gtest/include/gtest/gtest.h" | |
| 11 | |
| 12 namespace base { | |
| 13 namespace android { | |
| 14 | |
| 15 namespace { | |
| 16 const uint8 kRead = base::debug::MappedMemoryRegion::READ; | |
| 17 const uint8 kReadPrivate = base::debug::MappedMemoryRegion::READ | | |
| 18 base::debug::MappedMemoryRegion::PRIVATE; | |
| 19 const uint8 kExecutePrivate = base::debug::MappedMemoryRegion::EXECUTE | | |
| 20 base::debug::MappedMemoryRegion::PRIVATE; | |
| 21 } // namespace | |
| 22 | |
| 23 TEST(NativeLibraryPrefetcherTest, TestIsGoodToPrefetchNoRange) { | |
| 24 const base::debug::MappedMemoryRegion regions[4] = { | |
| 25 base::debug::MappedMemoryRegion{0x4000, 0x5000, 10, kReadPrivate, ""}, | |
| 26 base::debug::MappedMemoryRegion{0x4000, 0x5000, 10, kReadPrivate, "foo"}, | |
| 27 base::debug::MappedMemoryRegion{ | |
| 28 0x4000, 0x5000, 10, kReadPrivate, "foobar.apk"}, | |
| 29 base::debug::MappedMemoryRegion{ | |
| 30 0x4000, 0x5000, 10, kReadPrivate, "libchromium.so"}}; | |
| 31 for (int i = 0; i < 4; ++i) { | |
| 32 ASSERT_FALSE(NativeLibraryPrefetcher::IsGoodToPrefetch(regions[i])); | |
| 33 } | |
| 34 } | |
| 35 | |
| 36 TEST(NativeLibraryPrefetcherTest, TestIsGoodToPrefetchUnreadableRange) { | |
| 37 const base::debug::MappedMemoryRegion region = { | |
| 38 0x4000, 0x5000, 10, kExecutePrivate, "base.apk"}; | |
| 39 ASSERT_FALSE(NativeLibraryPrefetcher::IsGoodToPrefetch(region)); | |
| 40 } | |
| 41 | |
| 42 TEST(NativeLibraryPrefetcherTest, TestIsGoodToPrefetchSkipSharedRange) { | |
| 43 const base::debug::MappedMemoryRegion region = { | |
| 44 0x4000, 0x5000, 10, kRead, "base.apk"}; | |
| 45 ASSERT_FALSE(NativeLibraryPrefetcher::IsGoodToPrefetch(region)); | |
| 46 } | |
| 47 | |
| 48 TEST(NativeLibraryPrefetcherTest, TestIsGoodToPrefetchLibchromeRange) { | |
| 49 const base::debug::MappedMemoryRegion region = { | |
| 50 0x4000, 0x5000, 10, kReadPrivate, "libchrome.so"}; | |
| 51 ASSERT_TRUE(NativeLibraryPrefetcher::IsGoodToPrefetch(region)); | |
| 52 } | |
| 53 | |
| 54 TEST(NativeLibraryPrefetcherTest, TestIsGoodToPrefetchBaseApkRange) { | |
| 55 const base::debug::MappedMemoryRegion region = { | |
| 56 0x4000, 0x5000, 10, kReadPrivate, "base.apk"}; | |
| 57 ASSERT_TRUE(NativeLibraryPrefetcher::IsGoodToPrefetch(region)); | |
| 58 } | |
| 59 | |
| 60 TEST(NativeLibraryPrefetcherTest, | |
| 61 TestFilterLibchromeRangesOnlyIfPossibleNoLibchrome) { | |
| 62 std::vector<base::debug::MappedMemoryRegion> regions; | |
| 63 regions.push_back( | |
| 64 base::debug::MappedMemoryRegion{0x1, 0x2, 0, kReadPrivate, "base.apk"}); | |
| 65 regions.push_back( | |
| 66 base::debug::MappedMemoryRegion{0x3, 0x4, 0, kReadPrivate, "base.apk"}); | |
| 67 std::vector<NativeLibraryPrefetcher::AddressRange> ranges; | |
| 68 NativeLibraryPrefetcher::FilterLibchromeRangesOnlyIfPossible(regions, | |
| 69 &ranges); | |
| 70 EXPECT_EQ(ranges.size(), 2U); | |
| 71 EXPECT_EQ(ranges[0].first, 0x1U); | |
| 72 EXPECT_EQ(ranges[0].second, 0x2U); | |
| 73 EXPECT_EQ(ranges[1].first, 0x3U); | |
| 74 EXPECT_EQ(ranges[1].second, 0x4U); | |
| 75 } | |
| 76 | |
| 77 TEST(NativeLibraryPrefetcherTest, | |
| 78 TestFilterLibchromeRangesOnlyIfPossibleHasLibchrome) { | |
| 79 std::vector<base::debug::MappedMemoryRegion> regions; | |
| 80 regions.push_back( | |
| 81 base::debug::MappedMemoryRegion{0x1, 0x2, 0, kReadPrivate, "base.apk"}); | |
| 82 regions.push_back(base::debug::MappedMemoryRegion{ | |
| 83 0x6, 0x7, 0, kReadPrivate, "libchrome.so"}); | |
| 84 regions.push_back( | |
| 85 base::debug::MappedMemoryRegion{0x3, 0x4, 0, kReadPrivate, "base.apk"}); | |
| 86 std::vector<NativeLibraryPrefetcher::AddressRange> ranges; | |
| 87 NativeLibraryPrefetcher::FilterLibchromeRangesOnlyIfPossible(regions, | |
| 88 &ranges); | |
| 89 EXPECT_EQ(ranges.size(), 1U); | |
| 90 EXPECT_EQ(ranges[0].first, 0x6U); | |
| 91 EXPECT_EQ(ranges[0].second, 0x7U); | |
| 92 } | |
| 93 | |
| 94 } // namespace android | |
| 95 } // namespace base | |
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