mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-21 18:29:45 +00:00
d80781b98b
The ELF implementation now creates text, data and bss to match the gnu as behavior. The text streamer still has the old MachO specific behavior since the testsuite checks that it will error when a directive is given before a setting the current section for example. A nice benefit is that -n is not required anymore when producing ELF files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114027 91177308-0d34-0410-b5e6-96231b3b80d8
93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
//===- lib/MC/MCNullStreamer.cpp - Dummy Streamer Implementation ----------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/MC/MCStreamer.h"
|
|
|
|
#include "llvm/MC/MCContext.h"
|
|
#include "llvm/MC/MCInst.h"
|
|
#include "llvm/MC/MCSectionMachO.h"
|
|
#include "llvm/MC/MCSymbol.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
class MCNullStreamer : public MCStreamer {
|
|
public:
|
|
MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
|
|
|
|
/// @name MCStreamer Interface
|
|
/// @{
|
|
|
|
virtual void InitSections() {
|
|
}
|
|
|
|
virtual void SwitchSection(const MCSection *Section) {
|
|
PrevSection = CurSection;
|
|
CurSection = Section;
|
|
}
|
|
|
|
virtual void EmitLabel(MCSymbol *Symbol) {
|
|
assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
|
|
assert(CurSection && "Cannot emit before setting section!");
|
|
Symbol->setSection(*CurSection);
|
|
}
|
|
|
|
virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) {}
|
|
|
|
virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {}
|
|
|
|
virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute){}
|
|
|
|
virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
|
|
|
|
virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol) {}
|
|
virtual void EmitCOFFSymbolStorageClass(int StorageClass) {}
|
|
virtual void EmitCOFFSymbolType(int Type) {}
|
|
virtual void EndCOFFSymbolDef() {}
|
|
|
|
virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {}
|
|
virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
|
|
unsigned ByteAlignment) {}
|
|
virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {}
|
|
|
|
virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
|
|
unsigned Size = 0, unsigned ByteAlignment = 0) {}
|
|
virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
|
|
uint64_t Size, unsigned ByteAlignment) {}
|
|
virtual void EmitBytes(StringRef Data, unsigned AddrSpace) {}
|
|
|
|
virtual void EmitValue(const MCExpr *Value, unsigned Size,
|
|
unsigned AddrSpace) {}
|
|
virtual void EmitGPRel32Value(const MCExpr *Value) {}
|
|
virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
|
|
unsigned ValueSize = 1,
|
|
unsigned MaxBytesToEmit = 0) {}
|
|
|
|
virtual void EmitCodeAlignment(unsigned ByteAlignment,
|
|
unsigned MaxBytesToEmit = 0) {}
|
|
|
|
virtual void EmitValueToOffset(const MCExpr *Offset,
|
|
unsigned char Value = 0) {}
|
|
|
|
virtual void EmitFileDirective(StringRef Filename) {}
|
|
virtual void EmitDwarfFileDirective(unsigned FileNo,StringRef Filename) {}
|
|
virtual void EmitInstruction(const MCInst &Inst) {}
|
|
|
|
virtual void Finish() {}
|
|
|
|
/// @}
|
|
};
|
|
|
|
}
|
|
|
|
MCStreamer *llvm::createNullStreamer(MCContext &Context) {
|
|
return new MCNullStreamer(Context);
|
|
}
|