| Michael J. Spencer | b2c064c | 2013-01-06 03:56:49 +0000 | [diff] [blame] | 1 | //===-- ELFDump.cpp - ELF-specific dumper -----------------------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | /// |
| 10 | /// \file |
| 11 | /// \brief This file implements the ELF-specific dumper for llvm-objdump. |
| 12 | /// |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
| 15 | #include "llvm-objdump.h" |
| 16 | |
| 17 | #include "llvm/Object/ELF.h" |
| 18 | #include "llvm/Support/Format.h" |
| 19 | #include "llvm/Support/MathExtras.h" |
| 20 | #include "llvm/Support/raw_ostream.h" |
| 21 | |
| 22 | using namespace llvm; |
| 23 | using namespace llvm::object; |
| 24 | |
| 25 | template<endianness target_endianness, std::size_t max_alignment, bool is64Bits> |
| 26 | void printProgramHeaders( |
| 27 | const ELFObjectFile<target_endianness, max_alignment, is64Bits> *o) { |
| 28 | typedef ELFObjectFile<target_endianness, max_alignment, is64Bits> ELFO; |
| 29 | outs() << "Program Header:\n"; |
| 30 | for (typename ELFO::Elf_Phdr_Iter pi = o->begin_program_headers(), |
| 31 | pe = o->end_program_headers(); |
| 32 | pi != pe; ++pi) { |
| 33 | switch (pi->p_type) { |
| 34 | case ELF::PT_LOAD: |
| 35 | outs() << " LOAD "; |
| 36 | break; |
| 37 | case ELF::PT_GNU_STACK: |
| 38 | outs() << " STACK "; |
| 39 | break; |
| 40 | case ELF::PT_GNU_EH_FRAME: |
| 41 | outs() << "EH_FRAME "; |
| 42 | break; |
| 43 | default: |
| 44 | outs() << " UNKNOWN "; |
| 45 | } |
| 46 | |
| 47 | outs() << "off " |
| 48 | << format(is64Bits ? "0x%016x " : "0x%08x ", pi->p_offset) |
| 49 | << "vaddr " |
| 50 | << format(is64Bits ? "0x%016x " : "0x%08x ", pi->p_vaddr) |
| 51 | << "paddr " |
| 52 | << format(is64Bits ? "0x%016x " : "0x%08x ", pi->p_paddr) |
| 53 | << format("align 2**%d\n", CountTrailingZeros_32(pi->p_align)) |
| 54 | << " filesz " |
| 55 | << format(is64Bits ? "0x%016x " : "0x%08x ", pi->p_filesz) |
| 56 | << "memsz " |
| 57 | << format(is64Bits ? "0x%016x " : "0x%08x ", pi->p_memsz) |
| 58 | << "flags " |
| 59 | << ((pi->p_flags & ELF::PF_R) ? "r" : "-") |
| 60 | << ((pi->p_flags & ELF::PF_W) ? "w" : "-") |
| 61 | << ((pi->p_flags & ELF::PF_X) ? "x" : "-") |
| 62 | << "\n"; |
| 63 | } |
| 64 | outs() << "\n"; |
| 65 | } |
| 66 | |
| 67 | void llvm::printELFFileHeader(const object::ObjectFile *Obj) { |
| 68 | // Little-endian 32-bit |
| 69 | if (const ELFObjectFile<support::little, 4, false> *ELFObj = |
| 70 | dyn_cast<ELFObjectFile<support::little, 4, false> >(Obj)) |
| 71 | printProgramHeaders(ELFObj); |
| 72 | |
| 73 | // Big-endian 32-bit |
| 74 | if (const ELFObjectFile<support::big, 4, false> *ELFObj = |
| 75 | dyn_cast<ELFObjectFile<support::big, 4, false> >(Obj)) |
| 76 | printProgramHeaders(ELFObj); |
| 77 | |
| 78 | // Little-endian 64-bit |
| 79 | if (const ELFObjectFile<support::little, 8, true> *ELFObj = |
| 80 | dyn_cast<ELFObjectFile<support::little, 8, true> >(Obj)) |
| 81 | printProgramHeaders(ELFObj); |
| 82 | |
| 83 | // Big-endian 64-bit |
| 84 | if (const ELFObjectFile<support::big, 8, true> *ELFObj = |
| 85 | dyn_cast<ELFObjectFile<support::big, 8, true> >(Obj)) |
| 86 | printProgramHeaders(ELFObj); |
| 87 | } |