mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-12 15:05:06 +00:00
4cbb2db3ab
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240703 91177308-0d34-0410-b5e6-96231b3b80d8
400 lines
12 KiB
C++
400 lines
12 KiB
C++
//===- llvm-readobj.cpp - Dump contents of an Object File -----------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This is a tool similar to readelf, except it works on multiple object file
|
|
// formats. The main purpose of this tool is to provide detailed output suitable
|
|
// for FileCheck.
|
|
//
|
|
// Flags should be similar to readelf where supported, but the output format
|
|
// does not need to be identical. The point is to not make users learn yet
|
|
// another set of flags.
|
|
//
|
|
// Output should be specialized for each format where appropriate.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm-readobj.h"
|
|
#include "Error.h"
|
|
#include "ObjDumper.h"
|
|
#include "StreamWriter.h"
|
|
#include "llvm/Object/Archive.h"
|
|
#include "llvm/Object/ELFObjectFile.h"
|
|
#include "llvm/Object/MachOUniversal.h"
|
|
#include "llvm/Object/ObjectFile.h"
|
|
#include "llvm/Support/Casting.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Support/FileSystem.h"
|
|
#include "llvm/Support/ManagedStatic.h"
|
|
#include "llvm/Support/PrettyStackTrace.h"
|
|
#include "llvm/Support/Signals.h"
|
|
#include "llvm/Support/TargetRegistry.h"
|
|
#include "llvm/Support/TargetSelect.h"
|
|
#include <string>
|
|
#include <system_error>
|
|
|
|
using namespace llvm;
|
|
using namespace llvm::object;
|
|
|
|
namespace opts {
|
|
cl::list<std::string> InputFilenames(cl::Positional,
|
|
cl::desc("<input object files>"),
|
|
cl::ZeroOrMore);
|
|
|
|
// -file-headers, -h
|
|
cl::opt<bool> FileHeaders("file-headers",
|
|
cl::desc("Display file headers "));
|
|
cl::alias FileHeadersShort("h",
|
|
cl::desc("Alias for --file-headers"),
|
|
cl::aliasopt(FileHeaders));
|
|
|
|
// -sections, -s
|
|
cl::opt<bool> Sections("sections",
|
|
cl::desc("Display all sections."));
|
|
cl::alias SectionsShort("s",
|
|
cl::desc("Alias for --sections"),
|
|
cl::aliasopt(Sections));
|
|
|
|
// -section-relocations, -sr
|
|
cl::opt<bool> SectionRelocations("section-relocations",
|
|
cl::desc("Display relocations for each section shown."));
|
|
cl::alias SectionRelocationsShort("sr",
|
|
cl::desc("Alias for --section-relocations"),
|
|
cl::aliasopt(SectionRelocations));
|
|
|
|
// -section-symbols, -st
|
|
cl::opt<bool> SectionSymbols("section-symbols",
|
|
cl::desc("Display symbols for each section shown."));
|
|
cl::alias SectionSymbolsShort("st",
|
|
cl::desc("Alias for --section-symbols"),
|
|
cl::aliasopt(SectionSymbols));
|
|
|
|
// -section-data, -sd
|
|
cl::opt<bool> SectionData("section-data",
|
|
cl::desc("Display section data for each section shown."));
|
|
cl::alias SectionDataShort("sd",
|
|
cl::desc("Alias for --section-data"),
|
|
cl::aliasopt(SectionData));
|
|
|
|
// -relocations, -r
|
|
cl::opt<bool> Relocations("relocations",
|
|
cl::desc("Display the relocation entries in the file"));
|
|
cl::alias RelocationsShort("r",
|
|
cl::desc("Alias for --relocations"),
|
|
cl::aliasopt(Relocations));
|
|
|
|
// -dyn-relocations
|
|
cl::opt<bool> DynRelocs("dyn-relocations",
|
|
cl::desc("Display the dynamic relocation entries in the file"));
|
|
|
|
// -symbols, -t
|
|
cl::opt<bool> Symbols("symbols",
|
|
cl::desc("Display the symbol table"));
|
|
cl::alias SymbolsShort("t",
|
|
cl::desc("Alias for --symbols"),
|
|
cl::aliasopt(Symbols));
|
|
|
|
// -dyn-symbols, -dt
|
|
cl::opt<bool> DynamicSymbols("dyn-symbols",
|
|
cl::desc("Display the dynamic symbol table"));
|
|
cl::alias DynamicSymbolsShort("dt",
|
|
cl::desc("Alias for --dyn-symbols"),
|
|
cl::aliasopt(DynamicSymbols));
|
|
|
|
// -unwind, -u
|
|
cl::opt<bool> UnwindInfo("unwind",
|
|
cl::desc("Display unwind information"));
|
|
cl::alias UnwindInfoShort("u",
|
|
cl::desc("Alias for --unwind"),
|
|
cl::aliasopt(UnwindInfo));
|
|
|
|
// -dynamic-table
|
|
cl::opt<bool> DynamicTable("dynamic-table",
|
|
cl::desc("Display the ELF .dynamic section table"));
|
|
|
|
// -needed-libs
|
|
cl::opt<bool> NeededLibraries("needed-libs",
|
|
cl::desc("Display the needed libraries"));
|
|
|
|
// -program-headers
|
|
cl::opt<bool> ProgramHeaders("program-headers",
|
|
cl::desc("Display ELF program headers"));
|
|
|
|
// -expand-relocs
|
|
cl::opt<bool> ExpandRelocs("expand-relocs",
|
|
cl::desc("Expand each shown relocation to multiple lines"));
|
|
|
|
// -codeview
|
|
cl::opt<bool> CodeView("codeview",
|
|
cl::desc("Display CodeView debug information"));
|
|
|
|
// -codeview-subsection-bytes
|
|
cl::opt<bool> CodeViewSubsectionBytes(
|
|
"codeview-subsection-bytes",
|
|
cl::desc("Dump raw contents of codeview debug sections and records"));
|
|
|
|
// -arm-attributes, -a
|
|
cl::opt<bool> ARMAttributes("arm-attributes",
|
|
cl::desc("Display the ARM attributes section"));
|
|
cl::alias ARMAttributesShort("-a", cl::desc("Alias for --arm-attributes"),
|
|
cl::aliasopt(ARMAttributes));
|
|
|
|
// -mips-plt-got
|
|
cl::opt<bool>
|
|
MipsPLTGOT("mips-plt-got",
|
|
cl::desc("Display the MIPS GOT and PLT GOT sections"));
|
|
|
|
// -mips-abi-flags
|
|
cl::opt<bool> MipsABIFlags("mips-abi-flags",
|
|
cl::desc("Display the MIPS.abiflags section"));
|
|
|
|
// -mips-reginfo
|
|
cl::opt<bool> MipsReginfo("mips-reginfo",
|
|
cl::desc("Display the MIPS .reginfo section"));
|
|
|
|
// -coff-imports
|
|
cl::opt<bool>
|
|
COFFImports("coff-imports", cl::desc("Display the PE/COFF import table"));
|
|
|
|
// -coff-exports
|
|
cl::opt<bool>
|
|
COFFExports("coff-exports", cl::desc("Display the PE/COFF export table"));
|
|
|
|
// -coff-directives
|
|
cl::opt<bool>
|
|
COFFDirectives("coff-directives",
|
|
cl::desc("Display the PE/COFF .drectve section"));
|
|
|
|
// -coff-basereloc
|
|
cl::opt<bool>
|
|
COFFBaseRelocs("coff-basereloc",
|
|
cl::desc("Display the PE/COFF .reloc section"));
|
|
} // namespace opts
|
|
|
|
static int ReturnValue = EXIT_SUCCESS;
|
|
|
|
namespace llvm {
|
|
|
|
bool error(std::error_code EC) {
|
|
if (!EC)
|
|
return false;
|
|
|
|
ReturnValue = EXIT_FAILURE;
|
|
outs() << "\nError reading file: " << EC.message() << ".\n";
|
|
outs().flush();
|
|
return true;
|
|
}
|
|
|
|
bool relocAddressLess(RelocationRef a, RelocationRef b) {
|
|
uint64_t a_addr, b_addr;
|
|
if (error(a.getOffset(a_addr))) exit(ReturnValue);
|
|
if (error(b.getOffset(b_addr))) exit(ReturnValue);
|
|
return a_addr < b_addr;
|
|
}
|
|
|
|
} // namespace llvm
|
|
|
|
static void reportError(StringRef Input, std::error_code EC) {
|
|
if (Input == "-")
|
|
Input = "<stdin>";
|
|
|
|
errs() << Input << ": " << EC.message() << "\n";
|
|
errs().flush();
|
|
ReturnValue = EXIT_FAILURE;
|
|
}
|
|
|
|
static void reportError(StringRef Input, StringRef Message) {
|
|
if (Input == "-")
|
|
Input = "<stdin>";
|
|
|
|
errs() << Input << ": " << Message << "\n";
|
|
ReturnValue = EXIT_FAILURE;
|
|
}
|
|
|
|
static bool isMipsArch(unsigned Arch) {
|
|
switch (Arch) {
|
|
case llvm::Triple::mips:
|
|
case llvm::Triple::mipsel:
|
|
case llvm::Triple::mips64:
|
|
case llvm::Triple::mips64el:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/// @brief Creates an format-specific object file dumper.
|
|
static std::error_code createDumper(const ObjectFile *Obj, StreamWriter &Writer,
|
|
std::unique_ptr<ObjDumper> &Result) {
|
|
if (!Obj)
|
|
return readobj_error::unsupported_file_format;
|
|
|
|
if (Obj->isCOFF())
|
|
return createCOFFDumper(Obj, Writer, Result);
|
|
if (Obj->isELF())
|
|
return createELFDumper(Obj, Writer, Result);
|
|
if (Obj->isMachO())
|
|
return createMachODumper(Obj, Writer, Result);
|
|
|
|
return readobj_error::unsupported_obj_file_format;
|
|
}
|
|
|
|
static StringRef getLoadName(const ObjectFile *Obj) {
|
|
if (auto *ELF = dyn_cast<ELF32LEObjectFile>(Obj))
|
|
return ELF->getLoadName();
|
|
if (auto *ELF = dyn_cast<ELF64LEObjectFile>(Obj))
|
|
return ELF->getLoadName();
|
|
if (auto *ELF = dyn_cast<ELF32BEObjectFile>(Obj))
|
|
return ELF->getLoadName();
|
|
if (auto *ELF = dyn_cast<ELF64BEObjectFile>(Obj))
|
|
return ELF->getLoadName();
|
|
llvm_unreachable("Not ELF");
|
|
}
|
|
|
|
/// @brief Dumps the specified object file.
|
|
static void dumpObject(const ObjectFile *Obj) {
|
|
StreamWriter Writer(outs());
|
|
std::unique_ptr<ObjDumper> Dumper;
|
|
if (std::error_code EC = createDumper(Obj, Writer, Dumper)) {
|
|
reportError(Obj->getFileName(), EC);
|
|
return;
|
|
}
|
|
|
|
outs() << '\n';
|
|
outs() << "File: " << Obj->getFileName() << "\n";
|
|
outs() << "Format: " << Obj->getFileFormatName() << "\n";
|
|
outs() << "Arch: "
|
|
<< Triple::getArchTypeName((llvm::Triple::ArchType)Obj->getArch())
|
|
<< "\n";
|
|
outs() << "AddressSize: " << (8*Obj->getBytesInAddress()) << "bit\n";
|
|
if (Obj->isELF())
|
|
outs() << "LoadName: " << getLoadName(Obj) << "\n";
|
|
|
|
if (opts::FileHeaders)
|
|
Dumper->printFileHeaders();
|
|
if (opts::Sections)
|
|
Dumper->printSections();
|
|
if (opts::Relocations)
|
|
Dumper->printRelocations();
|
|
if (opts::DynRelocs)
|
|
Dumper->printDynamicRelocations();
|
|
if (opts::Symbols)
|
|
Dumper->printSymbols();
|
|
if (opts::DynamicSymbols)
|
|
Dumper->printDynamicSymbols();
|
|
if (opts::UnwindInfo)
|
|
Dumper->printUnwindInfo();
|
|
if (opts::DynamicTable)
|
|
Dumper->printDynamicTable();
|
|
if (opts::NeededLibraries)
|
|
Dumper->printNeededLibraries();
|
|
if (opts::ProgramHeaders)
|
|
Dumper->printProgramHeaders();
|
|
if (Obj->getArch() == llvm::Triple::arm && Obj->isELF())
|
|
if (opts::ARMAttributes)
|
|
Dumper->printAttributes();
|
|
if (isMipsArch(Obj->getArch()) && Obj->isELF()) {
|
|
if (opts::MipsPLTGOT)
|
|
Dumper->printMipsPLTGOT();
|
|
if (opts::MipsABIFlags)
|
|
Dumper->printMipsABIFlags();
|
|
if (opts::MipsReginfo)
|
|
Dumper->printMipsReginfo();
|
|
}
|
|
if (opts::COFFImports)
|
|
Dumper->printCOFFImports();
|
|
if (opts::COFFExports)
|
|
Dumper->printCOFFExports();
|
|
if (opts::COFFDirectives)
|
|
Dumper->printCOFFDirectives();
|
|
if (opts::COFFBaseRelocs)
|
|
Dumper->printCOFFBaseReloc();
|
|
}
|
|
|
|
/// @brief Dumps each object file in \a Arc;
|
|
static void dumpArchive(const Archive *Arc) {
|
|
for (Archive::child_iterator ArcI = Arc->child_begin(),
|
|
ArcE = Arc->child_end();
|
|
ArcI != ArcE; ++ArcI) {
|
|
ErrorOr<std::unique_ptr<Binary>> ChildOrErr = ArcI->getAsBinary();
|
|
if (std::error_code EC = ChildOrErr.getError()) {
|
|
// Ignore non-object files.
|
|
if (EC != object_error::invalid_file_type)
|
|
reportError(Arc->getFileName(), EC.message());
|
|
continue;
|
|
}
|
|
|
|
if (ObjectFile *Obj = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
|
|
dumpObject(Obj);
|
|
else
|
|
reportError(Arc->getFileName(), readobj_error::unrecognized_file_format);
|
|
}
|
|
}
|
|
|
|
/// @brief Dumps each object file in \a MachO Universal Binary;
|
|
static void dumpMachOUniversalBinary(const MachOUniversalBinary *UBinary) {
|
|
for (const MachOUniversalBinary::ObjectForArch &Obj : UBinary->objects()) {
|
|
ErrorOr<std::unique_ptr<MachOObjectFile>> ObjOrErr = Obj.getAsObjectFile();
|
|
if (ObjOrErr)
|
|
dumpObject(&*ObjOrErr.get());
|
|
else if (ErrorOr<std::unique_ptr<Archive>> AOrErr = Obj.getAsArchive())
|
|
dumpArchive(&*AOrErr.get());
|
|
else
|
|
reportError(UBinary->getFileName(), ObjOrErr.getError().message());
|
|
}
|
|
}
|
|
|
|
/// @brief Opens \a File and dumps it.
|
|
static void dumpInput(StringRef File) {
|
|
// If file isn't stdin, check that it exists.
|
|
if (File != "-" && !sys::fs::exists(File)) {
|
|
reportError(File, readobj_error::file_not_found);
|
|
return;
|
|
}
|
|
|
|
// Attempt to open the binary.
|
|
ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(File);
|
|
if (std::error_code EC = BinaryOrErr.getError()) {
|
|
reportError(File, EC);
|
|
return;
|
|
}
|
|
Binary &Binary = *BinaryOrErr.get().getBinary();
|
|
|
|
if (Archive *Arc = dyn_cast<Archive>(&Binary))
|
|
dumpArchive(Arc);
|
|
else if (MachOUniversalBinary *UBinary =
|
|
dyn_cast<MachOUniversalBinary>(&Binary))
|
|
dumpMachOUniversalBinary(UBinary);
|
|
else if (ObjectFile *Obj = dyn_cast<ObjectFile>(&Binary))
|
|
dumpObject(Obj);
|
|
else
|
|
reportError(File, readobj_error::unrecognized_file_format);
|
|
}
|
|
|
|
int main(int argc, const char *argv[]) {
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
PrettyStackTraceProgram X(argc, argv);
|
|
llvm_shutdown_obj Y;
|
|
|
|
// Register the target printer for --version.
|
|
cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
|
|
|
|
cl::ParseCommandLineOptions(argc, argv, "LLVM Object Reader\n");
|
|
|
|
// Default to stdin if no filename is specified.
|
|
if (opts::InputFilenames.size() == 0)
|
|
opts::InputFilenames.push_back("-");
|
|
|
|
std::for_each(opts::InputFilenames.begin(), opts::InputFilenames.end(),
|
|
dumpInput);
|
|
|
|
return ReturnValue;
|
|
}
|