X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FMC%2FMCELFObjectTargetWriter.cpp;h=bc0ba85a8ff62c10673968484f4115fd54ad4626;hb=6ad37ecd02c9ad8a75adc5d2e0139e86d135f676;hp=a84ba7314842cc439506bbde00c6acc32ba961d1;hpb=ceb09f38845a26f0f806946a611b42c6932d6504;p=oota-llvm.git

diff --git a/lib/MC/MCELFObjectTargetWriter.cpp b/lib/MC/MCELFObjectTargetWriter.cpp
index a84ba731484..bc0ba85a8ff 100644
--- a/lib/MC/MCELFObjectTargetWriter.cpp
+++ b/lib/MC/MCELFObjectTargetWriter.cpp
@@ -7,35 +7,45 @@
 //
 //===----------------------------------------------------------------------===//
 
+#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_) {
+    HasRelocationAddend(HasRelocationAddend_), Is64Bit(Is64Bit_),
+    IsN64(IsN64_){
 }
 
-/// Default e_flags = 0
-unsigned MCELFObjectTargetWriter::getEFlags() const {
-  return 0;
+bool MCELFObjectTargetWriter::needsRelocateWithSymbol(const MCSymbol &Sym,
+                                                      unsigned Type) const {
+  return false;
 }
 
-const MCSymbol *MCELFObjectTargetWriter::ExplicitRelSym(const MCAssembler &Asm,
-                                                        const MCValue &Target,
-                                                        const MCFragment &F,
-                                                        const MCFixup &Fixup,
-                                                        bool IsPCRel) const {
-  return NULL;
+// 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::adjustFixupOffset(const MCFixup &Fixup,
-                                                uint64_t &RelocOffset) {
-}
-
-MCELFObjectTargetWriter::~MCELFObjectTargetWriter() {
+void
+MCELFObjectTargetWriter::sortRelocs(const MCAssembler &Asm,
+                                    std::vector<ELFRelocationEntry> &Relocs) {
+  array_pod_sort(Relocs.begin(), Relocs.end(), cmpRel);
 }