//===----------------------------------------------------------------------===//
#include "DwarfException.h"
-#include "llvm/Module.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/MC/MachineLocation.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/Mangler.h"
+#include "llvm/IR/Module.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/Target/Mangler.h"
-#include "llvm/Target/TargetData.h"
+#include "llvm/MC/MachineLocation.h"
+#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/Support/Dwarf.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/Twine.h"
using namespace llvm;
DwarfCFIException::DwarfCFIException(AsmPrinter *A)
- : DwarfException(A),
- shouldEmitPersonality(false), shouldEmitLSDA(false), shouldEmitMoves(false),
- moveTypeModule(AsmPrinter::CFI_M_None) {}
+ : EHStreamer(A), shouldEmitPersonality(false), shouldEmitLSDA(false),
+ shouldEmitMoves(false), moveTypeModule(AsmPrinter::CFI_M_None) {}
DwarfCFIException::~DwarfCFIException() {}
-/// EndModule - Emit all exception information that should come after the
+/// endModule - Emit all exception information that should come after the
/// content.
-void DwarfCFIException::EndModule() {
+void DwarfCFIException::endModule() {
if (moveTypeModule == AsmPrinter::CFI_M_Debug)
Asm->OutStreamer.EmitCFISections(false, true);
- if (!Asm->MAI->isExceptionHandlingDwarf())
+ // SjLj uses this pass and it doesn't need this info.
+ if (!Asm->MAI->usesCFIForEH())
return;
const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
unsigned PerEncoding = TLOF.getPersonalityEncoding();
- if ((PerEncoding & 0x70) != dwarf::DW_EH_PE_pcrel)
+ if ((PerEncoding & 0x80) != dwarf::DW_EH_PE_indirect)
return;
// Emit references to all used personality functions
- bool AtLeastOne = false;
const std::vector<const Function*> &Personalities = MMI->getPersonalities();
for (size_t i = 0, e = Personalities.size(); i != e; ++i) {
if (!Personalities[i])
continue;
- MCSymbol *Sym = Asm->Mang->getSymbol(Personalities[i]);
+ MCSymbol *Sym = Asm->getSymbol(Personalities[i]);
TLOF.emitPersonalityValue(Asm->OutStreamer, Asm->TM, Sym);
- AtLeastOne = true;
- }
-
- if (AtLeastOne && !TLOF.isFunctionEHFrameSymbolPrivate()) {
- // This is a temporary hack to keep sections in the same order they
- // were before. This lets us produce bit identical outputs while
- // transitioning to CFI.
- Asm->OutStreamer.SwitchSection(
- const_cast<TargetLoweringObjectFile&>(TLOF).getEHFrameSection());
}
}
-/// BeginFunction - Gather pre-function exception information. Assumes it's
+/// beginFunction - Gather pre-function exception information. Assumes it's
/// being emitted immediately after the function entry point.
-void DwarfCFIException::BeginFunction(const MachineFunction *MF) {
+void DwarfCFIException::beginFunction(const MachineFunction *MF) {
shouldEmitMoves = shouldEmitPersonality = shouldEmitLSDA = false;
// If any landing pads survive, we need an EH table.
const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
unsigned PerEncoding = TLOF.getPersonalityEncoding();
- const Function *Per = MMI->getPersonalities()[MMI->getPersonalityIndex()];
+ const Function *Per = MMI->getPersonality();
shouldEmitPersonality = hasLandingPads &&
PerEncoding != dwarf::DW_EH_PE_omit && Per;
if (!shouldEmitPersonality && !shouldEmitMoves)
return;
- Asm->OutStreamer.EmitCFIStartProc();
+ Asm->OutStreamer.EmitCFIStartProc(/*IsSimple=*/false);
// Indicate personality routine, if any.
if (!shouldEmitPersonality)
return;
- const MCSymbol *Sym = TLOF.getCFIPersonalitySymbol(Per, Asm->Mang, MMI);
+ const MCSymbol *Sym =
+ TLOF.getCFIPersonalitySymbol(Per, *Asm->Mang, Asm->TM, MMI);
Asm->OutStreamer.EmitCFIPersonality(Sym, PerEncoding);
- Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_begin",
- Asm->getFunctionNumber()));
+ MCSymbol *EHBegin =
+ Asm->GetTempSymbol("eh_func_begin", Asm->getFunctionNumber());
+ if (Asm->MAI->useAssignmentForEHBegin()) {
+ MCContext &Ctx = Asm->OutContext;
+ MCSymbol *CurPos = Ctx.CreateTempSymbol();
+ Asm->OutStreamer.EmitLabel(CurPos);
+ Asm->OutStreamer.EmitAssignment(EHBegin,
+ MCSymbolRefExpr::Create(CurPos, Ctx));
+ } else {
+ Asm->OutStreamer.EmitLabel(EHBegin);
+ }
// Provide LSDA information.
if (!shouldEmitLSDA)
LSDAEncoding);
}
-/// EndFunction - Gather and emit post-function exception information.
+/// endFunction - Gather and emit post-function exception information.
///
-void DwarfCFIException::EndFunction() {
+void DwarfCFIException::endFunction(const MachineFunction *) {
if (!shouldEmitPersonality && !shouldEmitMoves)
return;
Asm->OutStreamer.EmitCFIEndProc();
+ if (!shouldEmitPersonality)
+ return;
+
Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_end",
Asm->getFunctionNumber()));
// Map all labels and get rid of any dead landing pads.
MMI->TidyLandingPads();
- if (shouldEmitPersonality)
- EmitExceptionTable();
+ emitExceptionTable();
}