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-rw-r--r--lib/MC/MCStreamer.cpp84
1 files changed, 71 insertions, 13 deletions
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index decbb96817e3..b8278cb11079 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -12,6 +12,7 @@
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/BinaryFormat/COFF.h"
+#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCCodeView.h"
@@ -21,6 +22,8 @@
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/MC/MCRegister.h"
+#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSymbol.h"
@@ -327,10 +330,56 @@ void MCStreamer::EmitCVInlineLinetableDirective(unsigned PrimaryFunctionId,
const MCSymbol *FnStartSym,
const MCSymbol *FnEndSym) {}
+/// Only call this on endian-specific types like ulittle16_t and little32_t, or
+/// structs composed of them.
+template <typename T>
+static void copyBytesForDefRange(SmallString<20> &BytePrefix,
+ codeview::SymbolKind SymKind,
+ const T &DefRangeHeader) {
+ BytePrefix.resize(2 + sizeof(T));
+ codeview::ulittle16_t SymKindLE = codeview::ulittle16_t(SymKind);
+ memcpy(&BytePrefix[0], &SymKindLE, 2);
+ memcpy(&BytePrefix[2], &DefRangeHeader, sizeof(T));
+}
+
void MCStreamer::EmitCVDefRangeDirective(
ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
StringRef FixedSizePortion) {}
+void MCStreamer::EmitCVDefRangeDirective(
+ ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
+ codeview::DefRangeRegisterRelHeader DRHdr) {
+ SmallString<20> BytePrefix;
+ copyBytesForDefRange(BytePrefix, codeview::S_DEFRANGE_REGISTER_REL, DRHdr);
+ EmitCVDefRangeDirective(Ranges, BytePrefix);
+}
+
+void MCStreamer::EmitCVDefRangeDirective(
+ ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
+ codeview::DefRangeSubfieldRegisterHeader DRHdr) {
+ SmallString<20> BytePrefix;
+ copyBytesForDefRange(BytePrefix, codeview::S_DEFRANGE_SUBFIELD_REGISTER,
+ DRHdr);
+ EmitCVDefRangeDirective(Ranges, BytePrefix);
+}
+
+void MCStreamer::EmitCVDefRangeDirective(
+ ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
+ codeview::DefRangeRegisterHeader DRHdr) {
+ SmallString<20> BytePrefix;
+ copyBytesForDefRange(BytePrefix, codeview::S_DEFRANGE_REGISTER, DRHdr);
+ EmitCVDefRangeDirective(Ranges, BytePrefix);
+}
+
+void MCStreamer::EmitCVDefRangeDirective(
+ ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
+ codeview::DefRangeFramePointerRelHeader DRHdr) {
+ SmallString<20> BytePrefix;
+ copyBytesForDefRange(BytePrefix, codeview::S_DEFRANGE_FRAMEPOINTER_REL,
+ DRHdr);
+ EmitCVDefRangeDirective(Ranges, BytePrefix);
+}
+
void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
MCSymbol *EHSymbol) {
}
@@ -631,7 +680,7 @@ void MCStreamer::EmitWinCFIStartProc(const MCSymbol *Symbol, SMLoc Loc) {
MCSymbol *StartProc = EmitCFILabel();
WinFrameInfos.emplace_back(
- llvm::make_unique<WinEH::FrameInfo>(Symbol, StartProc));
+ std::make_unique<WinEH::FrameInfo>(Symbol, StartProc));
CurrentWinFrameInfo = WinFrameInfos.back().get();
CurrentWinFrameInfo->TextSection = getCurrentSectionOnly();
}
@@ -665,7 +714,7 @@ void MCStreamer::EmitWinCFIStartChained(SMLoc Loc) {
MCSymbol *StartProc = EmitCFILabel();
- WinFrameInfos.emplace_back(llvm::make_unique<WinEH::FrameInfo>(
+ WinFrameInfos.emplace_back(std::make_unique<WinEH::FrameInfo>(
CurFrame->Function, StartProc, CurFrame));
CurrentWinFrameInfo = WinFrameInfos.back().get();
CurrentWinFrameInfo->TextSection = getCurrentSectionOnly();
@@ -763,18 +812,23 @@ MCSection *MCStreamer::getAssociatedXDataSection(const MCSection *TextSec) {
void MCStreamer::EmitSyntaxDirective() {}
-void MCStreamer::EmitWinCFIPushReg(unsigned Register, SMLoc Loc) {
+static unsigned encodeSEHRegNum(MCContext &Ctx, MCRegister Reg) {
+ return Ctx.getRegisterInfo()->getSEHRegNum(Reg);
+}
+
+void MCStreamer::EmitWinCFIPushReg(MCRegister Register, SMLoc Loc) {
WinEH::FrameInfo *CurFrame = EnsureValidWinFrameInfo(Loc);
if (!CurFrame)
return;
MCSymbol *Label = EmitCFILabel();
- WinEH::Instruction Inst = Win64EH::Instruction::PushNonVol(Label, Register);
+ WinEH::Instruction Inst = Win64EH::Instruction::PushNonVol(
+ Label, encodeSEHRegNum(Context, Register));
CurFrame->Instructions.push_back(Inst);
}
-void MCStreamer::EmitWinCFISetFrame(unsigned Register, unsigned Offset,
+void MCStreamer::EmitWinCFISetFrame(MCRegister Register, unsigned Offset,
SMLoc Loc) {
WinEH::FrameInfo *CurFrame = EnsureValidWinFrameInfo(Loc);
if (!CurFrame)
@@ -790,8 +844,8 @@ void MCStreamer::EmitWinCFISetFrame(unsigned Register, unsigned Offset,
MCSymbol *Label = EmitCFILabel();
- WinEH::Instruction Inst =
- Win64EH::Instruction::SetFPReg(Label, Register, Offset);
+ WinEH::Instruction Inst = Win64EH::Instruction::SetFPReg(
+ Label, encodeSEHRegNum(getContext(), Register), Offset);
CurFrame->LastFrameInst = CurFrame->Instructions.size();
CurFrame->Instructions.push_back(Inst);
}
@@ -813,7 +867,7 @@ void MCStreamer::EmitWinCFIAllocStack(unsigned Size, SMLoc Loc) {
CurFrame->Instructions.push_back(Inst);
}
-void MCStreamer::EmitWinCFISaveReg(unsigned Register, unsigned Offset,
+void MCStreamer::EmitWinCFISaveReg(MCRegister Register, unsigned Offset,
SMLoc Loc) {
WinEH::FrameInfo *CurFrame = EnsureValidWinFrameInfo(Loc);
if (!CurFrame)
@@ -825,12 +879,12 @@ void MCStreamer::EmitWinCFISaveReg(unsigned Register, unsigned Offset,
MCSymbol *Label = EmitCFILabel();
- WinEH::Instruction Inst =
- Win64EH::Instruction::SaveNonVol(Label, Register, Offset);
+ WinEH::Instruction Inst = Win64EH::Instruction::SaveNonVol(
+ Label, encodeSEHRegNum(Context, Register), Offset);
CurFrame->Instructions.push_back(Inst);
}
-void MCStreamer::EmitWinCFISaveXMM(unsigned Register, unsigned Offset,
+void MCStreamer::EmitWinCFISaveXMM(MCRegister Register, unsigned Offset,
SMLoc Loc) {
WinEH::FrameInfo *CurFrame = EnsureValidWinFrameInfo(Loc);
if (!CurFrame)
@@ -840,8 +894,8 @@ void MCStreamer::EmitWinCFISaveXMM(unsigned Register, unsigned Offset,
MCSymbol *Label = EmitCFILabel();
- WinEH::Instruction Inst =
- Win64EH::Instruction::SaveXMM(Label, Register, Offset);
+ WinEH::Instruction Inst = Win64EH::Instruction::SaveXMM(
+ Label, encodeSEHRegNum(Context, Register), Offset);
CurFrame->Instructions.push_back(Inst);
}
@@ -1009,6 +1063,10 @@ void MCStreamer::EmitCOFFSymbolStorageClass(int StorageClass) {
void MCStreamer::EmitCOFFSymbolType(int Type) {
llvm_unreachable("this directive only supported on COFF targets");
}
+void MCStreamer::EmitXCOFFLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlign) {
+ llvm_unreachable("this directive only supported on XCOFF targets");
+}
void MCStreamer::emitELFSize(MCSymbol *Symbol, const MCExpr *Value) {}
void MCStreamer::emitELFSymverDirective(StringRef AliasName,
const MCSymbol *Aliasee) {}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-27 00:36:39 +0000