forked from OSchip/llvm-project
89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
//===-- ELFDump.cpp - ELF-specific dumper -----------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief This file implements the ELF-specific dumper for llvm-objdump.
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///
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//===----------------------------------------------------------------------===//
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#include "llvm-objdump.h"
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#include "llvm/Object/ELF.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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using namespace llvm::object;
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template<class ELFT>
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void printProgramHeaders(
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const ELFObjectFile<ELFT> *o) {
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typedef ELFObjectFile<ELFT> ELFO;
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outs() << "Program Header:\n";
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for (typename ELFO::Elf_Phdr_Iter pi = o->begin_program_headers(),
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pe = o->end_program_headers();
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pi != pe; ++pi) {
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switch (pi->p_type) {
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case ELF::PT_LOAD:
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outs() << " LOAD ";
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break;
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case ELF::PT_GNU_STACK:
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outs() << " STACK ";
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break;
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case ELF::PT_GNU_EH_FRAME:
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outs() << "EH_FRAME ";
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break;
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default:
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outs() << " UNKNOWN ";
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}
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const char *Fmt = ELFT::Is64Bits ? "0x%016" PRIx64 " " : "0x%08" PRIx64 " ";
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outs() << "off "
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<< format(Fmt, (uint64_t)pi->p_offset)
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<< "vaddr "
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<< format(Fmt, (uint64_t)pi->p_vaddr)
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<< "paddr "
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<< format(Fmt, (uint64_t)pi->p_paddr)
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<< format("align 2**%u\n", CountTrailingZeros_64(pi->p_align))
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<< " filesz "
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<< format(Fmt, (uint64_t)pi->p_filesz)
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<< "memsz "
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<< format(Fmt, (uint64_t)pi->p_memsz)
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<< "flags "
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<< ((pi->p_flags & ELF::PF_R) ? "r" : "-")
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<< ((pi->p_flags & ELF::PF_W) ? "w" : "-")
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<< ((pi->p_flags & ELF::PF_X) ? "x" : "-")
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<< "\n";
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}
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outs() << "\n";
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}
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void llvm::printELFFileHeader(const object::ObjectFile *Obj) {
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// Little-endian 32-bit
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if (const ELFObjectFile<ELFType<support::little, 4, false> > *ELFObj =
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dyn_cast<ELFObjectFile<ELFType<support::little, 4, false> > >(Obj))
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printProgramHeaders(ELFObj);
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// Big-endian 32-bit
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if (const ELFObjectFile<ELFType<support::big, 4, false> > *ELFObj =
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dyn_cast<ELFObjectFile<ELFType<support::big, 4, false> > >(Obj))
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printProgramHeaders(ELFObj);
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// Little-endian 64-bit
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if (const ELFObjectFile<ELFType<support::little, 8, true> > *ELFObj =
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dyn_cast<ELFObjectFile<ELFType<support::little, 8, true> > >(Obj))
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printProgramHeaders(ELFObj);
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// Big-endian 64-bit
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if (const ELFObjectFile<ELFType<support::big, 8, true> > *ELFObj =
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dyn_cast<ELFObjectFile<ELFType<support::big, 8, true> > >(Obj))
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printProgramHeaders(ELFObj);
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}
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