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 "gtest/gtest.h"
  11
  12 using namespace llvm;
  13 using namespace llvm::MachO;
  14
  15 TEST(MachOTest, UnalignedLC) {
  16   unsigned char Valid32BitMachO[] = {
  17       0xCE, 0xFA, 0xED, 0xFE, 0x07, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
  18       0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00,
  19       0x85, 0x80, 0x21, 0x01, 0x01, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00,
  20       0x5F, 0x5F, 0x50, 0x41, 0x47, 0x45, 0x5A, 0x45, 0x52, 0x4F, 0x00, 0x00,
  21       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
  22       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  23       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  24       0x01, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x5F, 0x5F, 0x4C, 0x49,
  25       0x4E, 0x4B, 0x45, 0x44, 0x49, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  26       0x00, 0x40, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00,
  27       0x8C, 0x0B, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
  28       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
  29
  30   mach_header *Header =
  31       reinterpret_cast<mach_header *>(Valid32BitMachO);
  32   if (!sys::IsLittleEndianHost)
  33     swapStruct(*Header);
  34   ASSERT_EQ(Header->magic, MH_MAGIC);
  35   unsigned char *Current = Valid32BitMachO + sizeof(mach_header);
  36   unsigned char *BufferEnd =
  37       Valid32BitMachO + sizeof(mach_header) + Header->sizeofcmds;
  38   while (Current < BufferEnd) {
  39     macho_load_command *LC =
  40         reinterpret_cast<macho_load_command *>(Current);
  41     if (!sys::IsLittleEndianHost)
  42       swapStruct(LC->load_command_data);
  43     ASSERT_EQ(LC->load_command_data.cmd, LC_SEGMENT);
  44     Current += LC->load_command_data.cmdsize;
  45   }
  46 }