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Diffstat (limited to 'lib/MC/MCAsmStreamer.cpp')
-rw-r--r--lib/MC/MCAsmStreamer.cpp69
1 files changed, 50 insertions, 19 deletions
diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index c785c03..11f0f72 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -61,6 +61,8 @@ private:
bool needsSet(const MCExpr *Value);
void EmitRegisterName(int64_t Register);
+ virtual void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame);
+ virtual void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame);
public:
MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
@@ -154,6 +156,7 @@ public:
virtual void EmitCOFFSymbolStorageClass(int StorageClass);
virtual void EmitCOFFSymbolType(int Type);
virtual void EndCOFFSymbolDef();
+ virtual void EmitCOFFSecRel32(MCSymbol const *Symbol);
virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment);
@@ -183,6 +186,8 @@ public:
virtual void EmitSLEB128Value(const MCExpr *Value);
+ virtual void EmitGPRel64Value(const MCExpr *Value);
+
virtual void EmitGPRel32Value(const MCExpr *Value);
@@ -196,7 +201,7 @@ public:
virtual void EmitCodeAlignment(unsigned ByteAlignment,
unsigned MaxBytesToEmit = 0);
- virtual void EmitValueToOffset(const MCExpr *Offset,
+ virtual bool EmitValueToOffset(const MCExpr *Offset,
unsigned char Value = 0);
virtual void EmitFileDirective(StringRef Filename);
@@ -208,8 +213,6 @@ public:
StringRef FileName);
virtual void EmitCFISections(bool EH, bool Debug);
- virtual void EmitCFIStartProc();
- virtual void EmitCFIEndProc();
virtual void EmitCFIDefCfa(int64_t Register, int64_t Offset);
virtual void EmitCFIDefCfaOffset(int64_t Offset);
virtual void EmitCFIDefCfaRegister(int64_t Register);
@@ -221,6 +224,7 @@ public:
virtual void EmitCFISameValue(int64_t Register);
virtual void EmitCFIRelOffset(int64_t Register, int64_t Offset);
virtual void EmitCFIAdjustCfaOffset(int64_t Adjustment);
+ virtual void EmitCFISignalFrame();
virtual void EmitWin64EHStartProc(const MCSymbol *Symbol);
virtual void EmitWin64EHEndProc();
@@ -254,7 +258,7 @@ public:
/// indicated by the hasRawTextSupport() predicate.
virtual void EmitRawText(StringRef String);
- virtual void Finish();
+ virtual void FinishImpl();
/// @}
};
@@ -339,7 +343,6 @@ void MCAsmStreamer::EmitLabel(MCSymbol *Symbol) {
void MCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
switch (Flag) {
- default: assert(0 && "Invalid flag!");
case MCAF_SyntaxUnified: OS << "\t.syntax unified"; break;
case MCAF_SubsectionsViaSymbols: OS << ".subsections_via_symbols"; break;
case MCAF_Code16: OS << '\t'<< MAI.getCode16Directive(); break;
@@ -391,7 +394,7 @@ void MCAsmStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
MCSymbolAttr Attribute) {
switch (Attribute) {
- case MCSA_Invalid: assert(0 && "Invalid symbol attribute");
+ case MCSA_Invalid: llvm_unreachable("Invalid symbol attribute");
case MCSA_ELF_TypeFunction: /// .type _foo, STT_FUNC # aka @function
case MCSA_ELF_TypeIndFunction: /// .type _foo, STT_GNU_IFUNC
case MCSA_ELF_TypeObject: /// .type _foo, STT_OBJECT # aka @object
@@ -403,7 +406,7 @@ void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
OS << "\t.type\t" << *Symbol << ','
<< ((MAI.getCommentString()[0] != '@') ? '@' : '%');
switch (Attribute) {
- default: assert(0 && "Unknown ELF .type");
+ default: llvm_unreachable("Unknown ELF .type");
case MCSA_ELF_TypeFunction: OS << "function"; break;
case MCSA_ELF_TypeIndFunction: OS << "gnu_indirect_function"; break;
case MCSA_ELF_TypeObject: OS << "object"; break;
@@ -470,6 +473,11 @@ void MCAsmStreamer::EndCOFFSymbolDef() {
EmitEOL();
}
+void MCAsmStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
+ OS << "\t.secrel32\t" << *Symbol << '\n';
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
assert(MAI.hasDotTypeDotSizeDirective());
OS << "\t.size\t" << *Symbol << ", " << *Value << '\n';
@@ -657,6 +665,12 @@ void MCAsmStreamer::EmitSLEB128Value(const MCExpr *Value) {
EmitEOL();
}
+void MCAsmStreamer::EmitGPRel64Value(const MCExpr *Value) {
+ assert(MAI.getGPRel64Directive() != 0);
+ OS << MAI.getGPRel64Directive() << *Value;
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
assert(MAI.getGPRel32Directive() != 0);
OS << MAI.getGPRel32Directive() << *Value;
@@ -738,11 +752,12 @@ void MCAsmStreamer::EmitCodeAlignment(unsigned ByteAlignment,
1, MaxBytesToEmit);
}
-void MCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
+bool MCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
unsigned char Value) {
// FIXME: Verify that Offset is associated with the current section.
OS << ".org " << *Offset << ", " << (unsigned) Value;
EmitEOL();
+ return false;
}
@@ -835,21 +850,25 @@ void MCAsmStreamer::EmitCFISections(bool EH, bool Debug) {
EmitEOL();
}
-void MCAsmStreamer::EmitCFIStartProc() {
- MCStreamer::EmitCFIStartProc();
-
- if (!UseCFI)
+void MCAsmStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
+ if (!UseCFI) {
+ RecordProcStart(Frame);
return;
+ }
OS << "\t.cfi_startproc";
EmitEOL();
}
-void MCAsmStreamer::EmitCFIEndProc() {
- MCStreamer::EmitCFIEndProc();
-
- if (!UseCFI)
+void MCAsmStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
+ if (!UseCFI) {
+ RecordProcEnd(Frame);
return;
+ }
+
+ // Put a dummy non-null value in Frame.End to mark that this frame has been
+ // closed.
+ Frame.End = (MCSymbol *) 1;
OS << "\t.cfi_endproc";
EmitEOL();
@@ -984,6 +1003,16 @@ void MCAsmStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
EmitEOL();
}
+void MCAsmStreamer::EmitCFISignalFrame() {
+ MCStreamer::EmitCFISignalFrame();
+
+ if (!UseCFI)
+ return;
+
+ OS << "\t.cif_signal_frame";
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
MCStreamer::EmitWin64EHStartProc(Symbol);
@@ -1279,14 +1308,16 @@ void MCAsmStreamer::EmitRawText(StringRef String) {
EmitEOL();
}
-void MCAsmStreamer::Finish() {
+void MCAsmStreamer::FinishImpl() {
+ // FIXME: This header is duplicated with MCObjectStreamer
// Dump out the dwarf file & directory tables and line tables.
+ const MCSymbol *LineSectionSymbol = NULL;
if (getContext().hasDwarfFiles() && !UseLoc)
- MCDwarfFileTable::Emit(this);
+ LineSectionSymbol = MCDwarfFileTable::Emit(this);
// If we are generating dwarf for assembly source files dump out the sections.
if (getContext().getGenDwarfForAssembly())
- MCGenDwarfInfo::Emit(this);
+ MCGenDwarfInfo::Emit(this, LineSectionSymbol);
if (!UseCFI)
EmitFrames(false);
generated by cgit v1.1 at 2025-11-11 00:01:55 +0000