MCObjectStreamer::MCObjectStreamer(StreamerKind Kind, MCContext &Context,
MCAsmBackend &TAB, raw_ostream &OS,
MCCodeEmitter *Emitter_)
: MCStreamer(Kind, Context),
Assembler(new MCAssembler(Context, TAB, *Emitter_,
*TAB.createObjectWriter(OS), OS)),
CurSectionData(0) {}
MCObjectStreamer::MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB,
raw_pwrite_stream &OS,
MCCodeEmitter *Emitter_)
: MCStreamer(Context),
Assembler(new MCAssembler(Context, TAB, *Emitter_,
*TAB.createObjectWriter(OS))),
EmitEHFrame(true), EmitDebugFrame(false) {}
unsigned ARMWinCOFFObjectWriter::getRelocType(MCContext &Ctx,
const MCValue &Target,
const MCFixup &Fixup,
bool IsCrossSection,
const MCAsmBackend &MAB) const {
assert(getMachine() == COFF::IMAGE_FILE_MACHINE_ARMNT &&
"AArch64 support not yet implemented");
MCSymbolRefExpr::VariantKind Modifier =
Target.isAbsolute() ? MCSymbolRefExpr::VK_None : Target.getSymA()->getKind();
switch (static_cast<unsigned>(Fixup.getKind())) {
default: {
const MCFixupKindInfo &Info = MAB.getFixupKindInfo(Fixup.getKind());
report_fatal_error(Twine("unsupported relocation type: ") + Info.Name);
}
case FK_Data_4:
switch (Modifier) {
case MCSymbolRefExpr::VK_COFF_IMGREL32:
return COFF::IMAGE_REL_ARM_ADDR32NB;
case MCSymbolRefExpr::VK_SECREL:
return COFF::IMAGE_REL_ARM_SECREL;
default:
return COFF::IMAGE_REL_ARM_ADDR32;
}
case FK_SecRel_2:
return COFF::IMAGE_REL_ARM_SECTION;
case FK_SecRel_4:
return COFF::IMAGE_REL_ARM_SECREL;
case ARM::fixup_t2_condbranch:
return COFF::IMAGE_REL_ARM_BRANCH20T;
case ARM::fixup_t2_uncondbranch:
case ARM::fixup_arm_thumb_bl:
return COFF::IMAGE_REL_ARM_BRANCH24T;
case ARM::fixup_arm_thumb_blx:
return COFF::IMAGE_REL_ARM_BLX23T;
case ARM::fixup_t2_movw_lo16:
case ARM::fixup_t2_movt_hi16:
return COFF::IMAGE_REL_ARM_MOV32T;
}
}
