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| author | 2020-08-03 15:06:44 +0000 | |
|---|---|---|
| committer | 2020-08-03 15:06:44 +0000 | |
| commit | b64793999546ed8adebaeebd9d8345d18db8927d (patch) | |
| tree | 4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/tools/llvm-objdump/ELFDump.cpp | |
| parent | Add support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff) | |
| download | wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip | |
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/tools/llvm-objdump/ELFDump.cpp')
| -rw-r--r-- | gnu/llvm/tools/llvm-objdump/ELFDump.cpp | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/gnu/llvm/tools/llvm-objdump/ELFDump.cpp b/gnu/llvm/tools/llvm-objdump/ELFDump.cpp deleted file mode 100644 index b17a15a0d8f..00000000000 --- a/gnu/llvm/tools/llvm-objdump/ELFDump.cpp +++ /dev/null @@ -1,180 +0,0 @@ -//===-- 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 -/// 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> -Expected<StringRef> getDynamicStrTab(const ELFFile<ELFT> *Elf) { - typedef ELFFile<ELFT> ELFO; - - auto DynamicEntriesOrError = Elf->dynamicEntries(); - if (!DynamicEntriesOrError) - return DynamicEntriesOrError.takeError(); - - for (const typename ELFO::Elf_Dyn &Dyn : *DynamicEntriesOrError) { - if (Dyn.d_tag == ELF::DT_STRTAB) { - auto MappedAddrOrError = Elf->toMappedAddr(Dyn.getPtr()); - if (!MappedAddrOrError) - consumeError(MappedAddrOrError.takeError()); - return StringRef(reinterpret_cast<const char *>(*MappedAddrOrError)); - } - } - - // If the dynamic segment is not present, we fall back on the sections. - auto SectionsOrError = Elf->sections(); - if (!SectionsOrError) - return SectionsOrError.takeError(); - - for (const typename ELFO::Elf_Shdr &Sec : *SectionsOrError) { - if (Sec.sh_type == ELF::SHT_DYNSYM) - return Elf->getStringTableForSymtab(Sec); - } - - return createError("dynamic string table not found"); -} - -template <class ELFT> -void printDynamicSection(const ELFFile<ELFT> *Elf, StringRef Filename) { - auto ProgramHeaderOrError = Elf->program_headers(); - if (!ProgramHeaderOrError) - report_error(Filename, ProgramHeaderOrError.takeError()); - - auto DynamicEntriesOrError = Elf->dynamicEntries(); - if (!DynamicEntriesOrError) - report_error(Filename, DynamicEntriesOrError.takeError()); - - outs() << "Dynamic Section:\n"; - for (const auto &Dyn : *DynamicEntriesOrError) { - if (Dyn.d_tag == ELF::DT_NULL) - continue; - - StringRef Str = StringRef(Elf->getDynamicTagAsString(Dyn.d_tag)); - - if (Str.empty()) { - std::string HexStr = utohexstr(static_cast<uint64_t>(Dyn.d_tag), true); - outs() << format(" 0x%-19s", HexStr.c_str()); - } else { - // We use "-21" in order to match GNU objdump's output. - outs() << format(" %-21s", Str.data()); - } - - const char *Fmt = - ELFT::Is64Bits ? "0x%016" PRIx64 "\n" : "0x%08" PRIx64 "\n"; - if (Dyn.d_tag == ELF::DT_NEEDED) { - Expected<StringRef> StrTabOrErr = getDynamicStrTab(Elf); - if (StrTabOrErr) { - const char *Data = StrTabOrErr.get().data(); - outs() << (Data + Dyn.d_un.d_val) << "\n"; - continue; - } - warn(errorToErrorCode(StrTabOrErr.takeError()).message()); - consumeError(StrTabOrErr.takeError()); - } - outs() << format(Fmt, (uint64_t)Dyn.d_un.d_val); - } -} - -template <class ELFT> void printProgramHeaders(const ELFFile<ELFT> *o) { - typedef ELFFile<ELFT> ELFO; - outs() << "Program Header:\n"; - auto ProgramHeaderOrError = o->program_headers(); - if (!ProgramHeaderOrError) - report_fatal_error( - errorToErrorCode(ProgramHeaderOrError.takeError()).message()); - for (const typename ELFO::Elf_Phdr &Phdr : *ProgramHeaderOrError) { - switch (Phdr.p_type) { - case ELF::PT_DYNAMIC: - outs() << " DYNAMIC "; - break; - case ELF::PT_GNU_EH_FRAME: - outs() << "EH_FRAME "; - break; - case ELF::PT_GNU_RELRO: - outs() << " RELRO "; - break; - case ELF::PT_GNU_STACK: - outs() << " STACK "; - break; - case ELF::PT_INTERP: - outs() << " INTERP "; - break; - case ELF::PT_LOAD: - outs() << " LOAD "; - break; - case ELF::PT_NOTE: - outs() << " NOTE "; - break; - case ELF::PT_OPENBSD_BOOTDATA: - outs() << " OPENBSD_BOOTDATA "; - break; - case ELF::PT_OPENBSD_RANDOMIZE: - outs() << " OPENBSD_RANDOMIZE "; - break; - case ELF::PT_OPENBSD_WXNEEDED: - outs() << " OPENBSD_WXNEEDED "; - 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)Phdr.p_offset) << "vaddr " - << format(Fmt, (uint64_t)Phdr.p_vaddr) << "paddr " - << format(Fmt, (uint64_t)Phdr.p_paddr) - << format("align 2**%u\n", - countTrailingZeros<uint64_t>(Phdr.p_align)) - << " filesz " << format(Fmt, (uint64_t)Phdr.p_filesz) - << "memsz " << format(Fmt, (uint64_t)Phdr.p_memsz) << "flags " - << ((Phdr.p_flags & ELF::PF_R) ? "r" : "-") - << ((Phdr.p_flags & ELF::PF_W) ? "w" : "-") - << ((Phdr.p_flags & ELF::PF_X) ? "x" : "-") << "\n"; - } - outs() << "\n"; -} - -void llvm::printELFFileHeader(const object::ObjectFile *Obj) { - if (const auto *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) - printProgramHeaders(ELFObj->getELFFile()); - else if (const auto *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) - printProgramHeaders(ELFObj->getELFFile()); - else if (const auto *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) - printProgramHeaders(ELFObj->getELFFile()); - else if (const auto *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) - printProgramHeaders(ELFObj->getELFFile()); -} - -void llvm::printELFDynamicSection(const object::ObjectFile *Obj) { - if (const auto *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) - printDynamicSection(ELFObj->getELFFile(), Obj->getFileName()); - else if (const auto *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) - printDynamicSection(ELFObj->getELFFile(), Obj->getFileName()); - else if (const auto *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) - printDynamicSection(ELFObj->getELFFile(), Obj->getFileName()); - else if (const auto *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) - printDynamicSection(ELFObj->getELFFile(), Obj->getFileName()); -} |
