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0b859bfff5
This simplifies some code which had StringRefs to begin with, and makes other code more complicated which had const char* to begin with. In the end, I think this makes for a more idiomatic and platform agnostic API. Not all platforms launch process with null terminated c-string arrays for the environment pointer and argv, but the api was designed that way because it allowed easy pass-through for posix-based platforms. There's a little additional overhead now since on posix based platforms we'll be takign StringRefs which were constructed from null terminated strings and then copying them to null terminate them again, but from a readability and usability standpoint of the API user, I think this API signature is strictly better. llvm-svn: 334518
222 lines
8.0 KiB
C++
222 lines
8.0 KiB
C++
//========- unittests/Support/Host.cpp - Host.cpp tests --------------========//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/Host.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Program.h"
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#include "gtest/gtest.h"
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#define ASSERT_NO_ERROR(x) \
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if (std::error_code ASSERT_NO_ERROR_ec = x) { \
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SmallString<128> MessageStorage; \
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raw_svector_ostream Message(MessageStorage); \
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Message << #x ": did not return errc::success.\n" \
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<< "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
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<< "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
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GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
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} else { \
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}
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using namespace llvm;
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class HostTest : public testing::Test {
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Triple Host;
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protected:
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bool isSupportedArchAndOS() {
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// Initially this is only testing detection of the number of
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// physical cores, which is currently only supported/tested for
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// x86_64 Linux and Darwin.
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return (Host.getArch() == Triple::x86_64 &&
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(Host.isOSDarwin() || Host.getOS() == Triple::Linux));
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}
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HostTest() : Host(Triple::normalize(sys::getProcessTriple())) {}
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};
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TEST_F(HostTest, NumPhysicalCores) {
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int Num = sys::getHostNumPhysicalCores();
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if (isSupportedArchAndOS())
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ASSERT_GT(Num, 0);
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else
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ASSERT_EQ(Num, -1);
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}
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TEST(getLinuxHostCPUName, ARM) {
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StringRef CortexA9ProcCpuinfo = R"(
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processor : 0
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model name : ARMv7 Processor rev 10 (v7l)
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BogoMIPS : 1393.66
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Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpd32
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CPU implementer : 0x41
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CPU architecture: 7
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CPU variant : 0x2
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CPU part : 0xc09
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CPU revision : 10
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processor : 1
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model name : ARMv7 Processor rev 10 (v7l)
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BogoMIPS : 1393.66
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Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpd32
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CPU implementer : 0x41
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CPU architecture: 7
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CPU variant : 0x2
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CPU part : 0xc09
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CPU revision : 10
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Hardware : Generic OMAP4 (Flattened Device Tree)
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Revision : 0000
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Serial : 0000000000000000
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)";
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EXPECT_EQ(sys::detail::getHostCPUNameForARM(CortexA9ProcCpuinfo),
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"cortex-a9");
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
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"CPU part : 0xc0f"),
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"cortex-a15");
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// Verify that both CPU implementer and CPU part are checked:
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x40\n"
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"CPU part : 0xc0f"),
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"generic");
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
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"CPU part : 0x06f"),
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"krait");
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}
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TEST(getLinuxHostCPUName, AArch64) {
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
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"CPU part : 0xd03"),
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"cortex-a53");
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// Verify that both CPU implementer and CPU part are checked:
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x40\n"
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"CPU part : 0xd03"),
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"generic");
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
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"CPU part : 0x201"),
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"kryo");
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
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"CPU part : 0x800"),
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"cortex-a73");
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
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"CPU part : 0x801"),
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"cortex-a73");
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
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"CPU part : 0xc00"),
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"falkor");
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EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
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"CPU part : 0xc01"),
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"saphira");
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// MSM8992/4 weirdness
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StringRef MSM8992ProcCpuInfo = R"(
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Processor : AArch64 Processor rev 3 (aarch64)
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processor : 0
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processor : 1
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processor : 2
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processor : 3
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processor : 4
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processor : 5
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Features : fp asimd evtstrm aes pmull sha1 sha2 crc32
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CPU implementer : 0x41
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CPU architecture: 8
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CPU variant : 0x0
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CPU part : 0xd03
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CPU revision : 3
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Hardware : Qualcomm Technologies, Inc MSM8992
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)";
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EXPECT_EQ(sys::detail::getHostCPUNameForARM(MSM8992ProcCpuInfo),
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"cortex-a53");
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// Exynos big.LITTLE weirdness
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const std::string ExynosProcCpuInfo = R"(
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processor : 0
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Features : fp asimd evtstrm aes pmull sha1 sha2 crc32
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CPU implementer : 0x41
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CPU architecture: 8
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CPU variant : 0x0
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CPU part : 0xd03
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processor : 1
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Features : fp asimd evtstrm aes pmull sha1 sha2 crc32
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CPU implementer : 0x53
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CPU architecture: 8
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)";
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// Verify default for Exynos.
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EXPECT_EQ(sys::detail::getHostCPUNameForARM(ExynosProcCpuInfo +
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"CPU variant : 0xc\n"
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"CPU part : 0xafe"),
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"exynos-m1");
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// Verify Exynos M1.
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EXPECT_EQ(sys::detail::getHostCPUNameForARM(ExynosProcCpuInfo +
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"CPU variant : 0x1\n"
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"CPU part : 0x001"),
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"exynos-m1");
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// Verify Exynos M2.
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EXPECT_EQ(sys::detail::getHostCPUNameForARM(ExynosProcCpuInfo +
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"CPU variant : 0x4\n"
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"CPU part : 0x001"),
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"exynos-m2");
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}
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#if defined(__APPLE__)
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TEST_F(HostTest, getMacOSHostVersion) {
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using namespace llvm::sys;
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llvm::Triple HostTriple(getProcessTriple());
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if (!HostTriple.isMacOSX())
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return;
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SmallString<128> TestDirectory;
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ASSERT_NO_ERROR(fs::createUniqueDirectory("host_test", TestDirectory));
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SmallString<128> OutputFile(TestDirectory);
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path::append(OutputFile, "out");
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const char *SwVersPath = "/usr/bin/sw_vers";
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StringRef argv[] = {SwVersPath, "-productVersion"};
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StringRef OutputPath = OutputFile.str();
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const Optional<StringRef> Redirects[] = {/*STDIN=*/None,
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/*STDOUT=*/OutputPath,
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/*STDERR=*/None};
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int RetCode = ExecuteAndWait(SwVersPath, argv, /*env=*/llvm::None, Redirects);
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ASSERT_EQ(0, RetCode);
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int FD = 0;
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ASSERT_NO_ERROR(fs::openFileForRead(OutputPath, FD));
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off_t Size = ::lseek(FD, 0, SEEK_END);
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ASSERT_NE(-1, Size);
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::lseek(FD, 0, SEEK_SET);
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std::unique_ptr<char[]> Buffer = llvm::make_unique<char[]>(Size);
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ASSERT_EQ(::read(FD, Buffer.get(), Size), Size);
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::close(FD);
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// Ensure that the two versions match.
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StringRef SystemVersion(Buffer.get(), Size);
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unsigned SystemMajor, SystemMinor, SystemMicro;
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ASSERT_EQ(llvm::Triple((Twine("x86_64-apple-macos") + SystemVersion))
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.getMacOSXVersion(SystemMajor, SystemMinor, SystemMicro),
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true);
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unsigned HostMajor, HostMinor, HostMicro;
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ASSERT_EQ(HostTriple.getMacOSXVersion(HostMajor, HostMinor, HostMicro), true);
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// Don't compare the 'Micro' version, as it's always '0' for the 'Darwin'
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// triples.
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ASSERT_EQ(std::tie(SystemMajor, SystemMinor), std::tie(HostMajor, HostMinor));
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ASSERT_NO_ERROR(fs::remove(OutputPath));
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ASSERT_NO_ERROR(fs::remove(TestDirectory.str()));
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}
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#endif
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