diff options
Diffstat (limited to 'llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp b/llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp index 7db700472cb..698487980c3 100644 --- a/llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp +++ b/llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp @@ -565,11 +565,18 @@ void ARMAsmBackend::processFixupValue(const MCAssembler &Asm, Value |= 1; } } + // For Thumb1 BL instruction, it is possible to be a long jump between + // the basic blocks of the same function. Thus, we would like to resolve + // the offset when the destination has the same MCFragment. + if (A && (unsigned)Fixup.getKind() == ARM::fixup_arm_thumb_bl) { + const MCSymbol &Sym = A->getSymbol().AliasedSymbol(); + MCSymbolData &SymData = Asm.getSymbolData(Sym); + IsResolved = (SymData.getFragment() == DF); + } // We must always generate a relocation for BL/BLX instructions if we have // a symbol to reference, as the linker relies on knowing the destination // symbol's thumb-ness to get interworking right. if (A && ((unsigned)Fixup.getKind() == ARM::fixup_arm_thumb_blx || - (unsigned)Fixup.getKind() == ARM::fixup_arm_thumb_bl || (unsigned)Fixup.getKind() == ARM::fixup_arm_blx || (unsigned)Fixup.getKind() == ARM::fixup_arm_uncondbl || (unsigned)Fixup.getKind() == ARM::fixup_arm_condbl)) |
