//
//===----------------------------------------------------------------------===//
+#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 HasRelocationAddend_,
+ bool IsN64_)
: OSABI(OSABI_), EMachine(EMachine_),
- HasRelocationAddend(HasRelocationAddend_), Is64Bit(Is64Bit_) {
-}
-
-/// Default e_flags = 0
-unsigned MCELFObjectTargetWriter::getEFlags() const {
- return 0;
+ HasRelocationAddend(HasRelocationAddend_), Is64Bit(Is64Bit_),
+ IsN64(IsN64_){
}
const MCSymbol *MCELFObjectTargetWriter::ExplicitRelSym(const MCAssembler &Asm,
return NULL;
}
-
-void MCELFObjectTargetWriter::adjustFixupOffset(const MCFixup &Fixup,
- uint64_t &RelocOffset) {
+const MCSymbol *MCELFObjectTargetWriter::undefinedExplicitRelSym(const MCValue &Target,
+ const MCFixup &Fixup,
+ bool IsPCRel) const {
+ const MCSymbol &Symbol = Target.getSymA()->getSymbol();
+ return &Symbol.AliasedSymbol();
}
-unsigned MCELFObjectTargetWriter::GetRelocType(const MCValue &Target,
- const MCFixup &Fixup,
- bool IsPCRel,
- bool IsRelocWithSymbol,
- int64_t Addend) const {
- return 0;
+// ELF doesn't require relocations to be in any order. We sort by the r_offset,
+// just to match gnu as for easier comparison. The use type and index 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.r_offset != B.r_offset)
+ return B.r_offset - A.r_offset;
+ if (B.Type != A.Type)
+ return A.Type - B.Type;
+ if (B.Index != A.Index)
+ return B.Index - A.Index;
+ llvm_unreachable("ELFRelocs might be unstable!");
}
-MCELFObjectTargetWriter::~MCELFObjectTargetWriter() {
+void
+MCELFObjectTargetWriter::sortRelocs(const MCAssembler &Asm,
+ std::vector<ELFRelocationEntry> &Relocs) {
+ array_pod_sort(Relocs.begin(), Relocs.end(), cmpRel);
}