| //===-------------- ELF.cpp - JIT linker function for ELF -------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // ELF jit-link function. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/ExecutionEngine/JITLink/ELF.h" |
| |
| #include "llvm/BinaryFormat/ELF.h" |
| #include "llvm/ExecutionEngine/JITLink/ELF_x86_64.h" |
| #include "llvm/Support/Endian.h" |
| #include "llvm/Support/Format.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include <cstring> |
| |
| using namespace llvm; |
| |
| #define DEBUG_TYPE "jitlink" |
| |
| namespace llvm { |
| namespace jitlink { |
| |
| void jitLink_ELF(std::unique_ptr<JITLinkContext> Ctx) { |
| |
| // We don't want to do full ELF validation here. We just verify it is elf'ish. |
| // Probably should parse into an elf header when we support more than x86 :) |
| |
| StringRef Data = Ctx->getObjectBuffer().getBuffer(); |
| if (Data.size() < llvm::ELF::EI_MAG3 + 1) { |
| Ctx->notifyFailed(make_error<JITLinkError>("Truncated ELF buffer")); |
| return; |
| } |
| |
| if (!memcmp(Data.data(), llvm::ELF::ElfMagic, strlen(llvm::ELF::ElfMagic))) { |
| if (Data.data()[llvm::ELF::EI_CLASS] == ELF::ELFCLASS64) { |
| return jitLink_ELF_x86_64(std::move(Ctx)); |
| } |
| } |
| |
| Ctx->notifyFailed(make_error<JITLinkError>("ELF magic not valid")); |
| } |
| |
| } // end namespace jitlink |
| } // end namespace llvm |