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-rw-r--r--contrib/llvm/lib/MC/MCAsmStreamer.cpp106
1 files changed, 80 insertions, 26 deletions
diff --git a/contrib/llvm/lib/MC/MCAsmStreamer.cpp b/contrib/llvm/lib/MC/MCAsmStreamer.cpp
index 3fcbb05..11f0f72 100644
--- a/contrib/llvm/lib/MC/MCAsmStreamer.cpp
+++ b/contrib/llvm/lib/MC/MCAsmStreamer.cpp
@@ -29,6 +29,7 @@
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/PathV2.h"
#include <cctype>
using namespace llvm;
@@ -50,6 +51,7 @@ private:
unsigned ShowInst : 1;
unsigned UseLoc : 1;
unsigned UseCFI : 1;
+ unsigned UseDwarfDirectory : 1;
enum EHSymbolFlags { EHGlobal = 1,
EHWeakDefinition = 1 << 1,
@@ -59,17 +61,21 @@ 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,
bool isVerboseAsm, bool useLoc, bool useCFI,
+ bool useDwarfDirectory,
MCInstPrinter *printer, MCCodeEmitter *emitter,
MCAsmBackend *asmbackend,
bool showInst)
: MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
InstPrinter(printer), Emitter(emitter), AsmBackend(asmbackend),
CommentStream(CommentToEmit), IsVerboseAsm(isVerboseAsm),
- ShowInst(showInst), UseLoc(useLoc), UseCFI(useCFI) {
+ ShowInst(showInst), UseLoc(useLoc), UseCFI(useCFI),
+ UseDwarfDirectory(useDwarfDirectory) {
if (InstPrinter && IsVerboseAsm)
InstPrinter->setCommentStream(CommentStream);
}
@@ -150,6 +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);
@@ -179,6 +186,8 @@ public:
virtual void EmitSLEB128Value(const MCExpr *Value);
+ virtual void EmitGPRel64Value(const MCExpr *Value);
+
virtual void EmitGPRel32Value(const MCExpr *Value);
@@ -192,19 +201,18 @@ 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);
- virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Filename);
+ virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
+ StringRef Filename);
virtual void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
unsigned Column, unsigned Flags,
unsigned Isa, unsigned Discriminator,
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);
@@ -216,6 +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();
@@ -249,7 +258,7 @@ public:
/// indicated by the hasRawTextSupport() predicate.
virtual void EmitRawText(StringRef String);
- virtual void Finish();
+ virtual void FinishImpl();
/// @}
};
@@ -334,7 +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;
@@ -386,7 +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
@@ -398,7 +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;
@@ -465,6 +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';
@@ -652,6 +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;
@@ -733,11 +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;
}
@@ -748,13 +768,27 @@ void MCAsmStreamer::EmitFileDirective(StringRef Filename) {
EmitEOL();
}
-bool MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Filename){
+bool MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
+ StringRef Filename) {
+ if (!UseDwarfDirectory && !Directory.empty()) {
+ if (sys::path::is_absolute(Filename))
+ return EmitDwarfFileDirective(FileNo, "", Filename);
+
+ SmallString<128> FullPathName = Directory;
+ sys::path::append(FullPathName, Filename);
+ return EmitDwarfFileDirective(FileNo, "", FullPathName);
+ }
+
if (UseLoc) {
OS << "\t.file\t" << FileNo << ' ';
+ if (!Directory.empty()) {
+ PrintQuotedString(Directory, OS);
+ OS << ' ';
+ }
PrintQuotedString(Filename, OS);
EmitEOL();
}
- return this->MCStreamer::EmitDwarfFileDirective(FileNo, Filename);
+ return this->MCStreamer::EmitDwarfFileDirective(FileNo, Directory, Filename);
}
void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
@@ -816,21 +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();
@@ -965,6 +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);
@@ -1260,10 +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, LineSectionSymbol);
if (!UseCFI)
EmitFrames(false);
@@ -1271,9 +1325,9 @@ void MCAsmStreamer::Finish() {
MCStreamer *llvm::createAsmStreamer(MCContext &Context,
formatted_raw_ostream &OS,
bool isVerboseAsm, bool useLoc,
- bool useCFI, MCInstPrinter *IP,
- MCCodeEmitter *CE, MCAsmBackend *MAB,
- bool ShowInst) {
+ bool useCFI, bool useDwarfDirectory,
+ MCInstPrinter *IP, MCCodeEmitter *CE,
+ MCAsmBackend *MAB, bool ShowInst) {
return new MCAsmStreamer(Context, OS, isVerboseAsm, useLoc, useCFI,
- IP, CE, MAB, ShowInst);
+ useDwarfDirectory, IP, CE, MAB, ShowInst);
}
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