You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
2.7 KiB
107 lines
2.7 KiB
4 months ago
|
//===-- RecordStreamer.cpp - Record asm definde and used symbols ----------===//
|
||
|
|
//
|
||
|
|
// The LLVM Compiler Infrastructure
|
||
|
|
//
|
||
|
|
// This file is distributed under the University of Illinois Open Source
|
||
|
|
// License. See LICENSE.TXT for details.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include "RecordStreamer.h"
|
||
|
|
#include "llvm/MC/MCSymbol.h"
|
||
|
|
using namespace llvm;
|
||
|
|
|
||
|
|
void RecordStreamer::markDefined(const MCSymbol &Symbol) {
|
||
|
|
State &S = Symbols[Symbol.getName()];
|
||
|
|
switch (S) {
|
||
|
|
case DefinedGlobal:
|
||
|
|
case Global:
|
||
|
|
S = DefinedGlobal;
|
||
|
|
break;
|
||
|
|
case NeverSeen:
|
||
|
|
case Defined:
|
||
|
|
case Used:
|
||
|
|
S = Defined;
|
||
|
|
break;
|
||
|
|
case GlobalWeak:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void RecordStreamer::markGlobal(const MCSymbol &Symbol,
|
||
|
|
MCSymbolAttr Attribute) {
|
||
|
|
State &S = Symbols[Symbol.getName()];
|
||
|
|
switch (S) {
|
||
|
|
case DefinedGlobal:
|
||
|
|
case Defined:
|
||
|
|
S = (Attribute == MCSA_Weak) ? GlobalWeak : DefinedGlobal;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case NeverSeen:
|
||
|
|
case Global:
|
||
|
|
case Used:
|
||
|
|
S = (Attribute == MCSA_Weak) ? GlobalWeak : Global;
|
||
|
|
break;
|
||
|
|
case GlobalWeak:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void RecordStreamer::markUsed(const MCSymbol &Symbol) {
|
||
|
|
State &S = Symbols[Symbol.getName()];
|
||
|
|
switch (S) {
|
||
|
|
case DefinedGlobal:
|
||
|
|
case Defined:
|
||
|
|
case Global:
|
||
|
|
case GlobalWeak:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case NeverSeen:
|
||
|
|
case Used:
|
||
|
|
S = Used;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void RecordStreamer::visitUsedSymbol(const MCSymbol &Sym) { markUsed(Sym); }
|
||
|
|
|
||
|
|
RecordStreamer::const_iterator RecordStreamer::begin() {
|
||
|
|
return Symbols.begin();
|
||
|
|
}
|
||
|
|
|
||
|
|
RecordStreamer::const_iterator RecordStreamer::end() { return Symbols.end(); }
|
||
|
|
|
||
|
|
RecordStreamer::RecordStreamer(MCContext &Context) : MCStreamer(Context) {}
|
||
|
|
|
||
|
|
void RecordStreamer::EmitInstruction(const MCInst &Inst,
|
||
|
|
const MCSubtargetInfo &STI) {
|
||
|
|
MCStreamer::EmitInstruction(Inst, STI);
|
||
|
|
}
|
||
|
|
|
||
|
|
void RecordStreamer::EmitLabel(MCSymbol *Symbol) {
|
||
|
|
MCStreamer::EmitLabel(Symbol);
|
||
|
|
markDefined(*Symbol);
|
||
|
|
}
|
||
|
|
|
||
|
|
void RecordStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
|
||
|
|
markDefined(*Symbol);
|
||
|
|
MCStreamer::EmitAssignment(Symbol, Value);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool RecordStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
|
||
|
|
MCSymbolAttr Attribute) {
|
||
|
|
if (Attribute == MCSA_Global || Attribute == MCSA_Weak)
|
||
|
|
markGlobal(*Symbol, Attribute);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
void RecordStreamer::EmitZerofill(MCSection *Section, MCSymbol *Symbol,
|
||
|
|
uint64_t Size, unsigned ByteAlignment) {
|
||
|
|
markDefined(*Symbol);
|
||
|
|
}
|
||
|
|
|
||
|
|
void RecordStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
|
||
|
|
unsigned ByteAlignment) {
|
||
|
|
markDefined(*Symbol);
|
||
|
|
}
|