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| 1 | +//===-- PlatformTest.cpp --------------------------------------------------===// |
| 2 | +// |
| 3 | +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | +// See https://llvm.org/LICENSE.txt for license information. |
| 5 | +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | +// |
| 7 | +//===----------------------------------------------------------------------===// |
| 8 | + |
| 9 | +#include "gtest/gtest.h" |
| 10 | + |
| 11 | +#include "Plugins/Platform/POSIX/PlatformPOSIX.h" |
| 12 | +#include "TestingSupport/SubsystemRAII.h" |
| 13 | +#include "lldb/Core/PluginManager.h" |
| 14 | +#include "lldb/Host/FileSystem.h" |
| 15 | +#include "lldb/Host/HostInfo.h" |
| 16 | +#include "lldb/Target/Platform.h" |
| 17 | + |
| 18 | +using namespace lldb; |
| 19 | +using namespace lldb_private; |
| 20 | + |
| 21 | +class TestPlatform : public PlatformPOSIX { |
| 22 | +public: |
| 23 | + TestPlatform() : PlatformPOSIX(false) {} |
| 24 | + using Platform::Clear; |
| 25 | +}; |
| 26 | + |
| 27 | +class PlatformArm : public TestPlatform { |
| 28 | +public: |
| 29 | + PlatformArm() = default; |
| 30 | + |
| 31 | + std::vector<ArchSpec> |
| 32 | + GetSupportedArchitectures(const ArchSpec &process_host_arch) override { |
| 33 | + return {ArchSpec("arm64-apple-ps4")}; |
| 34 | + } |
| 35 | + |
| 36 | + llvm::StringRef GetPluginName() override { return "arm"; } |
| 37 | + llvm::StringRef GetDescription() override { return "arm"; } |
| 38 | +}; |
| 39 | + |
| 40 | +class PlatformIntel : public TestPlatform { |
| 41 | +public: |
| 42 | + PlatformIntel() = default; |
| 43 | + |
| 44 | + std::vector<ArchSpec> |
| 45 | + GetSupportedArchitectures(const ArchSpec &process_host_arch) override { |
| 46 | + return {ArchSpec("x86_64-apple-ps4")}; |
| 47 | + } |
| 48 | + |
| 49 | + llvm::StringRef GetPluginName() override { return "intel"; } |
| 50 | + llvm::StringRef GetDescription() override { return "intel"; } |
| 51 | +}; |
| 52 | + |
| 53 | +class PlatformThumb : public TestPlatform { |
| 54 | +public: |
| 55 | + static void Initialize() { |
| 56 | + PluginManager::RegisterPlugin("thumb", "thumb", |
| 57 | + PlatformThumb::CreateInstance); |
| 58 | + } |
| 59 | + static void Terminate() { |
| 60 | + PluginManager::UnregisterPlugin(PlatformThumb::CreateInstance); |
| 61 | + } |
| 62 | + |
| 63 | + static PlatformSP CreateInstance(bool force, const ArchSpec *arch) { |
| 64 | + return std::make_shared<PlatformThumb>(); |
| 65 | + } |
| 66 | + |
| 67 | + std::vector<ArchSpec> |
| 68 | + GetSupportedArchitectures(const ArchSpec &process_host_arch) override { |
| 69 | + return {ArchSpec("thumbv7-apple-ps4"), ArchSpec("thumbv7f-apple-ps4")}; |
| 70 | + } |
| 71 | + |
| 72 | + llvm::StringRef GetPluginName() override { return "thumb"; } |
| 73 | + llvm::StringRef GetDescription() override { return "thumb"; } |
| 74 | +}; |
| 75 | + |
| 76 | +class PlatformTest : public ::testing::Test { |
| 77 | + SubsystemRAII<FileSystem, HostInfo> subsystems; |
| 78 | + void SetUp() override { TestPlatform::Clear(); } |
| 79 | +}; |
| 80 | + |
| 81 | +TEST_F(PlatformTest, GetPlatformForArchitecturesHost) { |
| 82 | + const PlatformSP host_platform_sp = std::make_shared<PlatformArm>(); |
| 83 | + Platform::SetHostPlatform(host_platform_sp); |
| 84 | + ASSERT_EQ(Platform::GetHostPlatform(), host_platform_sp); |
| 85 | + |
| 86 | + const std::vector<ArchSpec> archs = { ArchSpec( "arm64-apple-ps4"), |
| 87 | + ArchSpec("arm64e-apple-ps4")}; |
| 88 | + std::vector<PlatformSP> candidates; |
| 89 | + |
| 90 | + // The host platform matches all architectures. |
| 91 | + PlatformSP platform_sp = |
| 92 | + Platform::GetPlatformForArchitectures(archs, {}, {}, candidates); |
| 93 | + ASSERT_TRUE(platform_sp); |
| 94 | + EXPECT_EQ(platform_sp, host_platform_sp); |
| 95 | +} |
| 96 | + |
| 97 | +TEST_F(PlatformTest, GetPlatformForArchitecturesSelected) { |
| 98 | + const PlatformSP host_platform_sp = std::make_shared<PlatformIntel>(); |
| 99 | + Platform::SetHostPlatform(host_platform_sp); |
| 100 | + ASSERT_EQ(Platform::GetHostPlatform(), host_platform_sp); |
| 101 | + |
| 102 | + const std::vector<ArchSpec> archs = { ArchSpec( "arm64-apple-ps4"), |
| 103 | + ArchSpec("arm64e-apple-ps4")}; |
| 104 | + std::vector<PlatformSP> candidates; |
| 105 | + |
| 106 | + // The host platform matches no architectures. No selected platform. |
| 107 | + PlatformSP platform_sp = |
| 108 | + Platform::GetPlatformForArchitectures(archs, {}, {}, candidates); |
| 109 | + ASSERT_FALSE(platform_sp); |
| 110 | + |
| 111 | + // The selected platform matches all architectures. |
| 112 | + const PlatformSP selected_platform_sp = std::make_shared<PlatformArm>(); |
| 113 | + platform_sp = Platform::GetPlatformForArchitectures( |
| 114 | + archs, {}, selected_platform_sp, candidates); |
| 115 | + ASSERT_TRUE(platform_sp); |
| 116 | + EXPECT_EQ(platform_sp, selected_platform_sp); |
| 117 | +} |
| 118 | + |
| 119 | +TEST_F(PlatformTest, GetPlatformForArchitecturesSelectedOverHost) { |
| 120 | + const PlatformSP host_platform_sp = std::make_shared<PlatformIntel>(); |
| 121 | + Platform::SetHostPlatform(host_platform_sp); |
| 122 | + ASSERT_EQ(Platform::GetHostPlatform(), host_platform_sp); |
| 123 | + |
| 124 | + const std::vector<ArchSpec> archs = { ArchSpec( "arm64-apple-ps4"), |
| 125 | + ArchSpec("x86_64-apple-ps4")}; |
| 126 | + std::vector<PlatformSP> candidates; |
| 127 | + |
| 128 | + // The host platform matches one architecture. No selected platform. |
| 129 | + PlatformSP platform_sp = |
| 130 | + Platform::GetPlatformForArchitectures(archs, {}, {}, candidates); |
| 131 | + ASSERT_TRUE(platform_sp); |
| 132 | + EXPECT_EQ(platform_sp, host_platform_sp); |
| 133 | + |
| 134 | + // The selected and host platform each match one architecture. |
| 135 | + // The selected platform is preferred. |
| 136 | + const PlatformSP selected_platform_sp = std::make_shared<PlatformArm>(); |
| 137 | + platform_sp = Platform::GetPlatformForArchitectures( |
| 138 | + archs, {}, selected_platform_sp, candidates); |
| 139 | + ASSERT_TRUE(platform_sp); |
| 140 | + EXPECT_EQ(platform_sp, selected_platform_sp); |
| 141 | +} |
| 142 | + |
| 143 | +TEST_F(PlatformTest, GetPlatformForArchitecturesCandidates) { |
| 144 | + PlatformThumb::Initialize(); |
| 145 | + |
| 146 | + const PlatformSP host_platform_sp = std::make_shared<PlatformIntel>(); |
| 147 | + Platform::SetHostPlatform(host_platform_sp); |
| 148 | + ASSERT_EQ(Platform::GetHostPlatform(), host_platform_sp); |
| 149 | + const PlatformSP selected_platform_sp = std::make_shared<PlatformArm>(); |
| 150 | + |
| 151 | + const std::vector<ArchSpec> archs = { ArchSpec( "thumbv7-apple-ps4"), |
| 152 | + ArchSpec("thumbv7f-apple-ps4")}; |
| 153 | + std::vector<PlatformSP> candidates; |
| 154 | + |
| 155 | + // The host platform matches one architecture. No selected platform. |
| 156 | + PlatformSP platform_sp = Platform::GetPlatformForArchitectures( |
| 157 | + archs, {}, selected_platform_sp, candidates); |
| 158 | + ASSERT_TRUE(platform_sp); |
| 159 | + EXPECT_EQ(platform_sp->GetName(), "thumb"); |
| 160 | + |
| 161 | + PlatformThumb::Terminate(); |
| 162 | +} |
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