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This commit is contained in:
Rui Ueyama 2020-11-03 20:42:50 +09:00
parent 13e3ab4eba
commit f93c204dfa
4 changed files with 41 additions and 49 deletions
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30
common.h Normal file
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@ -0,0 +1,30 @@
#pragma once
#define SECTOR_SIZE 512
#define PAGE_SIZE 4096
typedef uint8_t u8;
typedef uint16_t u16;
typedef uint32_t u32;
typedef uint64_t u64;
typedef int8_t i8;
typedef int16_t i16;
typedef int32_t i32;
typedef int64_t i64;
using llvm::ArrayRef;
using llvm::ErrorOr;
using llvm::Error;
using llvm::Expected;
using llvm::MemoryBufferRef;
using llvm::SmallVector;
using llvm::StringRef;
using llvm::Twine;
using llvm::object::ELF64LE;
using llvm::object::ELFFile;
class Symbol;
class InputSection;
class ObjectFile;
class OutputSection;

14
main.cc
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@ -84,15 +84,21 @@ static std::vector<MemoryBufferRef> get_archive_members(MemoryBufferRef mb) {
}
static void read_file(std::vector<ObjectFile *> &files, StringRef path) {
MemoryBufferRef mb = readFile(path);
auto mb_or_err = MemoryBuffer::getFile(path, -1, false);
if (auto ec = mb_or_err.getError())
error("cannot open " + path + ": " + ec.message());
switch (identify_magic(mb.getBuffer())) {
std::unique_ptr<MemoryBuffer> &mb = *mb_or_err;
MemoryBufferRef mbref = mb->getMemBufferRef();
mb.release();
switch (identify_magic(mbref.getBuffer())) {
case file_magic::archive:
for (MemoryBufferRef member : get_archive_members(mb))
for (MemoryBufferRef member : get_archive_members(mbref))
files.push_back(new ObjectFile(member, path));
break;
case file_magic::elf_relocatable:
files.push_back(new ObjectFile(mb, ""));
files.push_back(new ObjectFile(mbref, ""));
break;
default:
error(path + ": unknown file type");

35
mold.h
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@ -43,34 +43,7 @@
#include <valarray>
#include <xmmintrin.h>
#define SECTOR_SIZE 512
#define PAGE_SIZE 4096
typedef uint8_t u8;
typedef uint16_t u16;
typedef uint32_t u32;
typedef uint64_t u64;
typedef int8_t i8;
typedef int16_t i16;
typedef int32_t i32;
typedef int64_t i64;
using llvm::ArrayRef;
using llvm::ErrorOr;
using llvm::Error;
using llvm::Expected;
using llvm::MemoryBufferRef;
using llvm::SmallVector;
using llvm::StringRef;
using llvm::Twine;
using llvm::object::ELF64LE;
using llvm::object::ELFFile;
class Symbol;
class InputSection;
class ObjectFile;
class OutputSection;
#include "common.h"
struct Config {
StringRef output;
@ -592,12 +565,6 @@ private:
void print_map(ArrayRef<ObjectFile *> files, ArrayRef<OutputChunk *> output_sections);
//
// main.cc
//
MemoryBufferRef readFile(StringRef path);
//
// Other
//

11
object_file.cc
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@ -7,17 +7,6 @@ ObjectFile::ObjectFile(MemoryBufferRef mb, StringRef archive_name)
: mb(mb), name(mb.getBufferIdentifier()), archive_name(archive_name),
obj(check(ELFFile<ELF64LE>::create(mb.getBuffer()))) {}
MemoryBufferRef readFile(StringRef path) {
auto mbOrErr = MemoryBuffer::getFile(path, -1, false);
if (auto ec = mbOrErr.getError())
error("cannot open " + path + ": " + ec.message());
std::unique_ptr<MemoryBuffer> &mb = *mbOrErr;
MemoryBufferRef mbref = mb->getMemBufferRef();
mb.release();
return mbref;
}
static const ELF64LE::Shdr
*findSection(ArrayRef<ELF64LE::Shdr> sections, u32 type) {
for (const ELF64LE::Shdr &sec : sections)