blob: eaff12afe72fe3714d0fb52fd3e4d85851af9cf3 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
//===- lib/ReaderWriter/ELF/FileCommon.h ----------------------------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_READER_WRITER_ELF_FILE_COMMON_H
#define LLD_READER_WRITER_ELF_FILE_COMMON_H
#include "lld/ReaderWriter/ELFLinkingContext.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/ELF.h"
namespace lld {
namespace elf {
template <class ELFT>
std::error_code checkCompatibility(unsigned char size, unsigned char endian);
template <typename ELFT>
std::error_code isCompatible(MemoryBufferRef mb, ELFLinkingContext &ctx) {
typedef llvm::object::Elf_Ehdr_Impl<ELFT> Elf_Ehdr;
if (uintptr_t(mb.getBufferStart()) & 1)
return make_dynamic_error_code("invalid alignment");
auto *hdr = reinterpret_cast<const Elf_Ehdr *>(mb.getBuffer().data());
if (hdr->e_machine != ctx.getMachineType())
return make_dynamic_error_code("incompatible machine type");
unsigned char size;
unsigned char endian;
std::tie(size, endian) = llvm::object::getElfArchType(mb.getBuffer());
if (std::error_code ec = checkCompatibility<ELFT>(size, endian))
return ec;
return std::error_code();
}
} // end namespace elf
} // end namespace lld
#endif
|
