llvm/unittests/BinaryFormat/MachOTest.cpp

   1 //===- unittest/BinaryFormat/MachOTest.cpp - MachO support tests ----------===//
   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 "llvm/BinaryFormat/MachO.h"
  10 #include "llvm/ADT/Triple.h"
  11 #include "gtest/gtest.h"
  12
  13 using namespace llvm;
  14 using namespace llvm::MachO;
  15
  16 TEST(MachOTest, UnalignedLC) {
  17   unsigned char Valid32BitMachO[] = {
  18       0xCE, 0xFA, 0xED, 0xFE, 0x07, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
  19       0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00,
  20       0x85, 0x80, 0x21, 0x01, 0x01, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00,
  21       0x5F, 0x5F, 0x50, 0x41, 0x47, 0x45, 0x5A, 0x45, 0x52, 0x4F, 0x00, 0x00,
  22       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
  23       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  24       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  25       0x01, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x5F, 0x5F, 0x4C, 0x49,
  26       0x4E, 0x4B, 0x45, 0x44, 0x49, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  27       0x00, 0x40, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00,
  28       0x8C, 0x0B, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
  29       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
  30
  31   mach_header *Header =
  32       reinterpret_cast<mach_header *>(Valid32BitMachO);
  33   if (!sys::IsLittleEndianHost)
  34     swapStruct(*Header);
  35   ASSERT_EQ(Header->magic, MH_MAGIC);
  36   unsigned char *Current = Valid32BitMachO + sizeof(mach_header);
  37   unsigned char *BufferEnd =
  38       Valid32BitMachO + sizeof(mach_header) + Header->sizeofcmds;
  39   while (Current < BufferEnd) {
  40     macho_load_command *LC =
  41         reinterpret_cast<macho_load_command *>(Current);
  42     if (!sys::IsLittleEndianHost)
  43       swapStruct(LC->load_command_data);
  44     ASSERT_EQ(LC->load_command_data.cmd, LC_SEGMENT);
  45     Current += LC->load_command_data.cmdsize;
  46   }
  47 }
  48
  49 TEST(MachOTest, CPUType) {
  50 #define CHECK_CPUTYPE(StrTriple, ExpectedCPUType)                              \
  51   ASSERT_EQ((MachO::CPUType)cantFail(MachO::getCPUType(Triple(StrTriple))),    \
  52             (ExpectedCPUType))
  53   CHECK_CPUTYPE("x86_64-apple-darwin", MachO::CPU_TYPE_X86_64);
  54   CHECK_CPUTYPE("x86_64h-apple-darwin", MachO::CPU_TYPE_X86_64);
  55   CHECK_CPUTYPE("i386-apple-darwin", MachO::CPU_TYPE_X86);
  56   CHECK_CPUTYPE("armv7-apple-darwin", MachO::CPU_TYPE_ARM);
  57   CHECK_CPUTYPE("thumbv7-apple-darwin", MachO::CPU_TYPE_ARM);
  58   CHECK_CPUTYPE("arm64-apple-darwin", MachO::CPU_TYPE_ARM64);
  59   CHECK_CPUTYPE("arm64e-apple-darwin", MachO::CPU_TYPE_ARM64);
  60   CHECK_CPUTYPE("arm64_32-apple-darwin", MachO::CPU_TYPE_ARM64_32);
  61
  62   {
  63     // Not a mach-o.
  64     Expected<uint32_t> Type = MachO::getCPUType(Triple("x86_64-linux-unknown"));
  65     ASSERT_EQ(toString(Type.takeError()),
  66               "Unsupported triple for mach-o cpu type: x86_64-linux-unknown");
  67   }
  68   {
  69     // Not a valid mach-o architecture.
  70     Expected<uint32_t> Type = MachO::getCPUType(Triple("mips-apple-darwin"));
  71     ASSERT_EQ(toString(Type.takeError()),
  72               "Unsupported triple for mach-o cpu type: mips-apple-darwin");
  73   }
  74 #undef CHECK_CPUTYPE
  75 }
  76
  77 TEST(MachOTest, CPUSubType) {
  78 #define CHECK_CPUSUBTYPE(StrTriple, ExpectedCPUSubType)                        \
  79   ASSERT_EQ(cantFail(MachO::getCPUSubType(Triple(StrTriple))),                 \
  80             ((uint32_t)ExpectedCPUSubType))
  81   CHECK_CPUSUBTYPE("x86_64-apple-darwin", MachO::CPU_SUBTYPE_X86_64_ALL);
  82   CHECK_CPUSUBTYPE("x86_64h-apple-darwin", MachO::CPU_SUBTYPE_X86_64_H);
  83   CHECK_CPUSUBTYPE("i386-apple-darwin", MachO::CPU_SUBTYPE_I386_ALL);
  84   CHECK_CPUSUBTYPE("arm-apple-darwin", MachO::CPU_SUBTYPE_ARM_V7); // Default
  85   CHECK_CPUSUBTYPE("armv4t-apple-darwin", MachO::CPU_SUBTYPE_ARM_V4T);
  86   CHECK_CPUSUBTYPE("armv5t-apple-darwin", MachO::CPU_SUBTYPE_ARM_V5);
  87   CHECK_CPUSUBTYPE("armv5te-apple-darwin", MachO::CPU_SUBTYPE_ARM_V5);
  88   CHECK_CPUSUBTYPE("armv5tej-apple-darwin", MachO::CPU_SUBTYPE_ARM_V5);
  89   CHECK_CPUSUBTYPE("armv6-apple-darwin", MachO::CPU_SUBTYPE_ARM_V6);
  90   CHECK_CPUSUBTYPE("armv6k-apple-darwin", MachO::CPU_SUBTYPE_ARM_V6);
  91   CHECK_CPUSUBTYPE("armv7a-apple-darwin", MachO::CPU_SUBTYPE_ARM_V7);
  92   CHECK_CPUSUBTYPE("armv7s-apple-darwin", MachO::CPU_SUBTYPE_ARM_V7S);
  93   CHECK_CPUSUBTYPE("armv7k-apple-darwin", MachO::CPU_SUBTYPE_ARM_V7K);
  94   CHECK_CPUSUBTYPE("armv6m-apple-darwin", MachO::CPU_SUBTYPE_ARM_V6M);
  95   CHECK_CPUSUBTYPE("armv7m-apple-darwin", MachO::CPU_SUBTYPE_ARM_V7M);
  96   CHECK_CPUSUBTYPE("armv7em-apple-darwin", MachO::CPU_SUBTYPE_ARM_V7EM);
  97   CHECK_CPUSUBTYPE("thumbv7-apple-darwin", MachO::CPU_SUBTYPE_ARM_V7);
  98   CHECK_CPUSUBTYPE("thumbv6-apple-darwin", MachO::CPU_SUBTYPE_ARM_V6);
  99   CHECK_CPUSUBTYPE("arm64-apple-darwin", MachO::CPU_SUBTYPE_ARM64_ALL);
 100   CHECK_CPUSUBTYPE("arm64e-apple-darwin", MachO::CPU_SUBTYPE_ARM64E);
 101   CHECK_CPUSUBTYPE("arm64_32-apple-darwin", MachO::CPU_SUBTYPE_ARM64_32_V8);
 102
 103   {
 104     // Not a mach-o.
 105     Expected<uint32_t> Type =
 106         MachO::getCPUSubType(Triple("x86_64-linux-unknown"));
 107     ASSERT_EQ(
 108         toString(Type.takeError()),
 109         "Unsupported triple for mach-o cpu subtype: x86_64-linux-unknown");
 110   }
 111   {
 112     // Not a valid mach-o architecture.
 113     Expected<uint32_t> Type = MachO::getCPUSubType(Triple("mips-apple-darwin"));
 114     ASSERT_EQ(toString(Type.takeError()),
 115               "Unsupported triple for mach-o cpu subtype: mips-apple-darwin");
 116   }
 117 #undef CHECK_CPUSUBTYPE
 118 }