#include "llvm/MC/MCELFStreamer.h"
#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCAsmBackend.h"
+#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
namespace {
+class AArch64ELFStreamer;
+
+class AArch64TargetAsmStreamer : public AArch64TargetStreamer {
+ formatted_raw_ostream &OS;
+
+ void emitInst(uint32_t Inst) override;
+
+public:
+ AArch64TargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
+};
+
+AArch64TargetAsmStreamer::AArch64TargetAsmStreamer(MCStreamer &S,
+ formatted_raw_ostream &OS)
+ : AArch64TargetStreamer(S), OS(OS) {}
+
+void AArch64TargetAsmStreamer::emitInst(uint32_t Inst) {
+ OS << "\t.inst\t0x" << utohexstr(Inst) << "\n";
+}
+
+class AArch64TargetELFStreamer : public AArch64TargetStreamer {
+private:
+ AArch64ELFStreamer &getStreamer();
+
+ void emitInst(uint32_t Inst) override;
+
+public:
+ AArch64TargetELFStreamer(MCStreamer &S) : AArch64TargetStreamer(S) {}
+};
+
/// Extend the generic ELFStreamer class so that it can emit mapping symbols at
/// the appropriate points in the object files. These symbols are defined in the
/// AArch64 ELF ABI:
/// by MachO. Beware!
class AArch64ELFStreamer : public MCELFStreamer {
public:
+ friend class AArch64TargetELFStreamer;
+
AArch64ELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
MCCodeEmitter *Emitter)
: MCELFStreamer(Context, TAB, OS, Emitter), MappingSymbolCounter(0),
MCELFStreamer::EmitInstruction(Inst, STI);
}
+ void emitInst(uint32_t Inst) {
+ char Buffer[4];
+ const bool LittleEndian = getContext().getAsmInfo()->isLittleEndian();
+
+ EmitA64MappingSymbol();
+ for (unsigned II = 0; II != 4; ++II) {
+ const unsigned I = LittleEndian ? (4 - II - 1) : II;
+ Buffer[4 - II - 1] = uint8_t(Inst >> I * CHAR_BIT);
+ }
+ MCELFStreamer::EmitBytes(StringRef(Buffer, 4));
+ }
+
/// This is one of the functions used to emit data into an ELF section, so the
/// AArch64 streamer overrides it to add the appropriate mapping symbol ($d)
/// if necessary.
/// @}
};
+} // end anonymous namespace
+
+AArch64ELFStreamer &AArch64TargetELFStreamer::getStreamer() {
+ return static_cast<AArch64ELFStreamer &>(Streamer);
+}
+
+void AArch64TargetELFStreamer::emitInst(uint32_t Inst) {
+ getStreamer().emitInst(Inst);
}
namespace llvm {
+MCStreamer *
+createAArch64MCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
+ bool isVerboseAsm, bool useDwarfDirectory,
+ MCInstPrinter *InstPrint, MCCodeEmitter *CE,
+ MCAsmBackend *TAB, bool ShowInst) {
+ MCStreamer *S = llvm::createAsmStreamer(
+ Ctx, OS, isVerboseAsm, useDwarfDirectory, InstPrint, CE, TAB, ShowInst);
+ new AArch64TargetAsmStreamer(*S, OS);
+ return S;
+}
+
MCELFStreamer *createAArch64ELFStreamer(MCContext &Context, MCAsmBackend &TAB,
raw_ostream &OS, MCCodeEmitter *Emitter,
bool RelaxAll) {
AArch64ELFStreamer *S = new AArch64ELFStreamer(Context, TAB, OS, Emitter);
+ new AArch64TargetELFStreamer(*S);
if (RelaxAll)
S->getAssembler().setRelaxAll(true);
return S;