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//===-- ELFDump.cpp - ELF-specific dumper -----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief This file implements the ELF-specific dumper for llvm-objdump.
///
//===----------------------------------------------------------------------===//
#include "llvm-objdump.h"
#include "llvm/Object/ELFObjectFile.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
using namespace llvm::object;
template <class ELFT> void printProgramHeaders(const ELFFile<ELFT> *o) {
typedef ELFFile<ELFT> ELFO;
outs() << "Program Header:\n";
for (typename ELFO::Elf_Phdr_Iter pi = o->begin_program_headers(),
pe = o->end_program_headers();
pi != pe; ++pi) {
switch (pi->p_type) {
case ELF::PT_LOAD:
outs() << " LOAD ";
break;
case ELF::PT_GNU_STACK:
outs() << " STACK ";
break;
case ELF::PT_GNU_EH_FRAME:
outs() << "EH_FRAME ";
break;
case ELF::PT_INTERP:
outs() << " INTERP ";
break;
case ELF::PT_DYNAMIC:
outs() << " DYNAMIC ";
break;
case ELF::PT_PHDR:
outs() << " PHDR ";
break;
case ELF::PT_TLS:
outs() << " TLS ";
break;
default:
outs() << " UNKNOWN ";
}
const char *Fmt = ELFT::Is64Bits ? "0x%016" PRIx64 " " : "0x%08" PRIx64 " ";
outs() << "off "
<< format(Fmt, (uint64_t)pi->p_offset)
<< "vaddr "
<< format(Fmt, (uint64_t)pi->p_vaddr)
<< "paddr "
<< format(Fmt, (uint64_t)pi->p_paddr)
<< format("align 2**%u\n", countTrailingZeros<uint64_t>(pi->p_align))
<< " filesz "
<< format(Fmt, (uint64_t)pi->p_filesz)
<< "memsz "
<< format(Fmt, (uint64_t)pi->p_memsz)
<< "flags "
<< ((pi->p_flags & ELF::PF_R) ? "r" : "-")
<< ((pi->p_flags & ELF::PF_W) ? "w" : "-")
<< ((pi->p_flags & ELF::PF_X) ? "x" : "-")
<< "\n";
}
outs() << "\n";
}
void llvm::printELFFileHeader(const object::ObjectFile *Obj) {
// Little-endian 32-bit
if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
printProgramHeaders(ELFObj->getELFFile());
// Big-endian 32-bit
if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
printProgramHeaders(ELFObj->getELFFile());
// Little-endian 64-bit
if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
printProgramHeaders(ELFObj->getELFFile());
// Big-endian 64-bit
if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
printProgramHeaders(ELFObj->getELFFile());
}
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