//
//===----------------------------------------------------------------------===//
+#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCSymbol.h"
MCObjectWriter::~MCObjectWriter() {
}
-/// Utility function to encode a SLEB128 value.
-void MCObjectWriter::EncodeSLEB128(int64_t Value, raw_ostream &OS) {
- bool More;
- do {
- uint8_t Byte = Value & 0x7f;
- // NOTE: this assumes that this signed shift is an arithmetic right shift.
- Value >>= 7;
- More = !((((Value == 0 ) && ((Byte & 0x40) == 0)) ||
- ((Value == -1) && ((Byte & 0x40) != 0))));
- if (More)
- Byte |= 0x80; // Mark this byte that that more bytes will follow.
- OS << char(Byte);
- } while (More);
-}
-
-/// Utility function to encode a ULEB128 value.
-void MCObjectWriter::EncodeULEB128(uint64_t Value, raw_ostream &OS) {
- do {
- uint8_t Byte = Value & 0x7f;
- Value >>= 7;
- if (Value != 0)
- Byte |= 0x80; // Mark this byte that that more bytes will follow.
- OS << char(Byte);
- } while (Value != 0);
-}
-
-bool
-MCObjectWriter::IsSymbolRefDifferenceFullyResolved(const MCAssembler &Asm,
- const MCSymbolRefExpr *A,
- const MCSymbolRefExpr *B,
- bool InSet) const {
+bool MCObjectWriter::isSymbolRefDifferenceFullyResolved(
+ const MCAssembler &Asm, const MCSymbolRefExpr *A, const MCSymbolRefExpr *B,
+ bool InSet) const {
// Modified symbol references cannot be resolved.
if (A->getKind() != MCSymbolRefExpr::VK_None ||
B->getKind() != MCSymbolRefExpr::VK_None)
if (SA.isUndefined() || SB.isUndefined())
return false;
- // On ELF and COFF A - B is absolute if A and B are in the same section.
- return &SA.getSection() == &SB.getSection();
+ if (!SA.getFragment() || !SB.getFragment())
+ return false;
+
+ return isSymbolRefDifferenceFullyResolvedImpl(Asm, SA, *SB.getFragment(),
+ InSet, false);
+}
+
+bool MCObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(
+ const MCAssembler &Asm, const MCSymbol &SymA, const MCFragment &FB,
+ bool InSet, bool IsPCRel) const {
+ const MCSection &SecA = SymA.getSection();
+ const MCSection &SecB = *FB.getParent();
+ // On ELF and COFF A - B is absolute if A and B are in the same section.
+ return &SecA == &SecB;
}
+
+bool MCObjectWriter::isWeak(const MCSymbol &) const { return false; }