llvm-6502/lib/MC/MCELFObjectTargetWriter.cpp
Rafael Espindola e97d937576 Pass a MCSymbol to needsRelocateWithSymbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238589 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-29 18:26:09 +00:00

52 lines
1.8 KiB
C++

//===-- MCELFObjectTargetWriter.cpp - ELF Target Writer Subclass ----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/STLExtras.h"
#include "llvm/MC/MCELFObjectWriter.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCValue.h"
using namespace llvm;
MCELFObjectTargetWriter::MCELFObjectTargetWriter(bool Is64Bit_,
uint8_t OSABI_,
uint16_t EMachine_,
bool HasRelocationAddend_,
bool IsN64_)
: OSABI(OSABI_), EMachine(EMachine_),
HasRelocationAddend(HasRelocationAddend_), Is64Bit(Is64Bit_),
IsN64(IsN64_){
}
bool MCELFObjectTargetWriter::needsRelocateWithSymbol(const MCSymbol &Sym,
unsigned Type) const {
return false;
}
// ELF doesn't require relocations to be in any order. We sort by the Offset,
// just to match gnu as for easier comparison. The use type is an arbitrary way
// of making the sort deterministic.
static int cmpRel(const ELFRelocationEntry *AP, const ELFRelocationEntry *BP) {
const ELFRelocationEntry &A = *AP;
const ELFRelocationEntry &B = *BP;
if (A.Offset != B.Offset)
return B.Offset - A.Offset;
if (B.Type != A.Type)
return A.Type - B.Type;
//llvm_unreachable("ELFRelocs might be unstable!");
return 0;
}
void
MCELFObjectTargetWriter::sortRelocs(const MCAssembler &Asm,
std::vector<ELFRelocationEntry> &Relocs) {
array_pod_sort(Relocs.begin(), Relocs.end(), cmpRel);
}