diff options
Diffstat (limited to 'llvm/tools/llvm-objdump/MachODump.cpp')
| -rw-r--r-- | llvm/tools/llvm-objdump/MachODump.cpp | 140 |
1 files changed, 134 insertions, 6 deletions
diff --git a/llvm/tools/llvm-objdump/MachODump.cpp b/llvm/tools/llvm-objdump/MachODump.cpp index 7d2eeedd8e6..1fa7ccd41d5 100644 --- a/llvm/tools/llvm-objdump/MachODump.cpp +++ b/llvm/tools/llvm-objdump/MachODump.cpp @@ -539,13 +539,15 @@ static const char *GuessSymbolName(uint64_t value, SymbolAddressMap *AddrMap) { static void DumpCstringSection(MachOObjectFile *O, const char *sect, uint32_t sect_size, uint64_t sect_addr, - bool verbose) { + bool print_addresses) { for (uint32_t i = 0; i < sect_size; i++) { - if (O->is64Bit()) - outs() << format("0x%016" PRIx64, sect_addr + i) << " "; - else - outs() << format("0x%08" PRIx64, sect_addr + i) << " "; - for ( ; i < sect_size && sect[i] != '\0'; i++) { + if (print_addresses) { + if (O->is64Bit()) + outs() << format("0x%016" PRIx64, sect_addr + i) << " "; + else + outs() << format("0x%08" PRIx64, sect_addr + i) << " "; + } + for (; i < sect_size && sect[i] != '\0'; i++) { char p[2]; p[0] = sect[i]; p[1] = '\0'; @@ -556,6 +558,123 @@ static void DumpCstringSection(MachOObjectFile *O, const char *sect, } } +static void DumpLiteral4(uint32_t l, float f) { + outs() << format("0x%08" PRIx32, l); + if ((l & 0x7f800000) != 0x7f800000) + outs() << format(" (%.16e)\n", f); + else { + if (l == 0x7f800000) + outs() << " (+Infinity)\n"; + else if (l == 0xff800000) + outs() << " (-Infinity)\n"; + else if ((l & 0x00400000) == 0x00400000) + outs() << " (non-signaling Not-a-Number)\n"; + else + outs() << " (signaling Not-a-Number)\n"; + } +} + +static void DumpLiteral4Section(MachOObjectFile *O, const char *sect, + uint32_t sect_size, uint64_t sect_addr, + bool print_addresses) { + for (uint32_t i = 0; i < sect_size; i += sizeof(float)) { + if (print_addresses) { + if (O->is64Bit()) + outs() << format("0x%016" PRIx64, sect_addr + i) << " "; + else + outs() << format("0x%08" PRIx64, sect_addr + i) << " "; + } + float f; + memcpy(&f, sect + i, sizeof(float)); + if (O->isLittleEndian() != sys::IsLittleEndianHost) + sys::swapByteOrder(f); + uint32_t l; + memcpy(&l, sect + i, sizeof(uint32_t)); + if (O->isLittleEndian() != sys::IsLittleEndianHost) + sys::swapByteOrder(l); + DumpLiteral4(l, f); + } +} + +static void DumpLiteral8(MachOObjectFile *O, uint32_t l0, uint32_t l1, + double d) { + outs() << format("0x%08" PRIx32, l0) << " " << format("0x%08" PRIx32, l1); + uint32_t Hi, Lo; + if (O->isLittleEndian()) { + Hi = l1; + Lo = l0; + } else { + Hi = l0; + Lo = l1; + } + // Hi is the high word, so this is equivalent to if(isfinite(d)) + if ((Hi & 0x7ff00000) != 0x7ff00000) + outs() << format(" (%.16e)\n", d); + else { + if (Hi == 0x7ff00000 && Lo == 0) + outs() << " (+Infinity)\n"; + else if (Hi == 0xfff00000 && Lo == 0) + outs() << " (-Infinity)\n"; + else if ((Hi & 0x00080000) == 0x00080000) + outs() << " (non-signaling Not-a-Number)\n"; + else + outs() << " (signaling Not-a-Number)\n"; + } +} + +static void DumpLiteral8Section(MachOObjectFile *O, const char *sect, + uint32_t sect_size, uint64_t sect_addr, + bool print_addresses) { + for (uint32_t i = 0; i < sect_size; i += sizeof(double)) { + if (print_addresses) { + if (O->is64Bit()) + outs() << format("0x%016" PRIx64, sect_addr + i) << " "; + else + outs() << format("0x%08" PRIx64, sect_addr + i) << " "; + } + double d; + memcpy(&d, sect + i, sizeof(double)); + if (O->isLittleEndian() != sys::IsLittleEndianHost) + sys::swapByteOrder(d); + uint32_t l0, l1; + memcpy(&l0, sect + i, sizeof(uint32_t)); + memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); + if (O->isLittleEndian() != sys::IsLittleEndianHost) { + sys::swapByteOrder(l0); + sys::swapByteOrder(l1); + } + DumpLiteral8(O, l0, l1, d); + } +} + +static void DumpLiteral16Section(MachOObjectFile *O, const char *sect, + uint32_t sect_size, uint64_t sect_addr, + bool print_addresses) { + for (uint32_t i = 0; i < sect_size; i += 16) { + if (print_addresses) { + if (O->is64Bit()) + outs() << format("0x%016" PRIx64, sect_addr + i) << " "; + else + outs() << format("0x%08" PRIx64, sect_addr + i) << " "; + } + uint32_t l0, l1, l2, l3; + memcpy(&l0, sect + i, sizeof(uint32_t)); + memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); + memcpy(&l2, sect + i + 2 * sizeof(uint32_t), sizeof(uint32_t)); + memcpy(&l3, sect + i + 3 * sizeof(uint32_t), sizeof(uint32_t)); + if (O->isLittleEndian() != sys::IsLittleEndianHost) { + sys::swapByteOrder(l0); + sys::swapByteOrder(l1); + sys::swapByteOrder(l2); + sys::swapByteOrder(l3); + } + outs() << format("0x%08" PRIx32, l0) << " "; + outs() << format("0x%08" PRIx32, l1) << " "; + outs() << format("0x%08" PRIx32, l2) << " "; + outs() << format("0x%08" PRIx32, l3) << "\n"; + } +} + static void DumpInitTermPointerSection(MachOObjectFile *O, const char *sect, uint32_t sect_size, uint64_t sect_addr, SymbolAddressMap *AddrMap, @@ -698,6 +817,15 @@ static void DumpSectionContents(StringRef Filename, MachOObjectFile *O, case MachO::S_CSTRING_LITERALS: DumpCstringSection(O, sect, sect_size, sect_addr, verbose); break; + case MachO::S_4BYTE_LITERALS: + DumpLiteral4Section(O, sect, sect_size, sect_addr, verbose); + break; + case MachO::S_8BYTE_LITERALS: + DumpLiteral8Section(O, sect, sect_size, sect_addr, verbose); + break; + case MachO::S_16BYTE_LITERALS: + DumpLiteral16Section(O, sect, sect_size, sect_addr, verbose); + break; case MachO::S_MOD_INIT_FUNC_POINTERS: case MachO::S_MOD_TERM_FUNC_POINTERS: DumpInitTermPointerSection(O, sect, sect_size, sect_addr, &AddrMap, |
