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-rw-r--r--include/llvm/MC/MCAsmInfo.h29
-rw-r--r--include/llvm/MC/MCDwarf.h7
-rw-r--r--include/llvm/MC/MCELFSymbolFlags.h3
-rw-r--r--include/llvm/MC/MCExpr.h6
-rw-r--r--include/llvm/MC/MCInstPrinter.h4
-rw-r--r--include/llvm/MC/MCParser/MCAsmLexer.h1
-rw-r--r--include/llvm/MC/MCParser/MCAsmParser.h4
-rw-r--r--include/llvm/MC/MCParser/MCAsmParserExtension.h2
-rw-r--r--include/llvm/MC/MCStreamer.h53
-rw-r--r--include/llvm/MC/MCWin64EH.h93
10 files changed, 171 insertions, 31 deletions
diff --git a/include/llvm/MC/MCAsmInfo.h b/include/llvm/MC/MCAsmInfo.h
index 873316139457..775d22bea42f 100644
--- a/include/llvm/MC/MCAsmInfo.h
+++ b/include/llvm/MC/MCAsmInfo.h
@@ -26,12 +26,12 @@ namespace llvm {
class MCSymbol;
class MCContext;
- /// MCAsmInfo - This class is intended to be used as a base class for asm
- /// properties and features specific to the target.
namespace ExceptionHandling {
- enum ExceptionsType { None, DwarfTable, DwarfCFI, SjLj, ARM };
+ enum ExceptionsType { None, DwarfCFI, SjLj, ARM, Win64 };
}
+ /// MCAsmInfo - This class is intended to be used as a base class for asm
+ /// properties and features specific to the target.
class MCAsmInfo {
protected:
//===------------------------------------------------------------------===//
@@ -269,9 +269,6 @@ namespace llvm {
/// SupportsExceptionHandling - True if target supports exception handling.
ExceptionHandling::ExceptionsType ExceptionsType; // Defaults to None
- /// RequiresFrameSection - true if the Dwarf2 output needs a frame section
- bool DwarfRequiresFrameSection; // Defaults to true.
-
/// DwarfUsesInlineInfoSection - True if DwarfDebugInlineSection is used to
/// encode inline subroutine information.
bool DwarfUsesInlineInfoSection; // Defaults to false.
@@ -279,9 +276,9 @@ namespace llvm {
/// DwarfSectionOffsetDirective - Special section offset directive.
const char* DwarfSectionOffsetDirective; // Defaults to NULL
- /// DwarfUsesAbsoluteLabelForStmtList - True if DW_AT_stmt_list needs
- /// absolute label instead of offset.
- bool DwarfUsesAbsoluteLabelForStmtList; // Defaults to true;
+ /// DwarfRequiresRelocationForSectionOffset - True if we need to produce a
+ // relocation when we want a section offset in dwarf.
+ bool DwarfRequiresRelocationForSectionOffset; // Defaults to true;
// DwarfUsesLabelOffsetDifference - True if Dwarf2 output can
// use EmitLabelOffsetDifference.
@@ -462,13 +459,9 @@ namespace llvm {
}
bool isExceptionHandlingDwarf() const {
return
- (ExceptionsType == ExceptionHandling::DwarfTable ||
- ExceptionsType == ExceptionHandling::DwarfCFI ||
- ExceptionsType == ExceptionHandling::ARM);
- }
-
- bool doesDwarfRequireFrameSection() const {
- return DwarfRequiresFrameSection;
+ (ExceptionsType == ExceptionHandling::DwarfCFI ||
+ ExceptionsType == ExceptionHandling::ARM ||
+ ExceptionsType == ExceptionHandling::Win64);
}
bool doesDwarfUsesInlineInfoSection() const {
return DwarfUsesInlineInfoSection;
@@ -476,8 +469,8 @@ namespace llvm {
const char *getDwarfSectionOffsetDirective() const {
return DwarfSectionOffsetDirective;
}
- bool doesDwarfUsesAbsoluteLabelForStmtList() const {
- return DwarfUsesAbsoluteLabelForStmtList;
+ bool doesDwarfRequireRelocationForSectionOffset() const {
+ return DwarfRequiresRelocationForSectionOffset;
}
bool doesDwarfUsesLabelOffsetForRanges() const {
return DwarfUsesLabelOffsetForRanges;
diff --git a/include/llvm/MC/MCDwarf.h b/include/llvm/MC/MCDwarf.h
index 3bbcf3eb6ed0..90c372856749 100644
--- a/include/llvm/MC/MCDwarf.h
+++ b/include/llvm/MC/MCDwarf.h
@@ -281,11 +281,10 @@ namespace llvm {
//
// This emits the frame info section.
//
- static void Emit(MCStreamer &streamer, bool usingCFI);
- static void EmitDarwin(MCStreamer &streamer, bool usingCFI);
+ static void Emit(MCStreamer &streamer, bool usingCFI,
+ bool isEH);
static void EmitAdvanceLoc(MCStreamer &Streamer, uint64_t AddrDelta);
- static void EncodeAdvanceLoc(uint64_t AddrDelta, raw_ostream &OS,
- const TargetAsmInfo &AsmInfo);
+ static void EncodeAdvanceLoc(uint64_t AddrDelta, raw_ostream &OS);
};
} // end namespace llvm
diff --git a/include/llvm/MC/MCELFSymbolFlags.h b/include/llvm/MC/MCELFSymbolFlags.h
index d798fb077272..2225ea07868f 100644
--- a/include/llvm/MC/MCELFSymbolFlags.h
+++ b/include/llvm/MC/MCELFSymbolFlags.h
@@ -49,7 +49,8 @@ namespace llvm {
ELF_STV_Hidden = (ELF::STV_HIDDEN << ELF_STV_Shift),
ELF_STV_Protected = (ELF::STV_PROTECTED << ELF_STV_Shift),
- ELF_Other_Weakref = (1 << ELF_Other_Shift)
+ ELF_Other_Weakref = (1 << ELF_Other_Shift),
+ ELF_Other_ThumbFunc = (2 << ELF_Other_Shift)
};
} // end namespace llvm
diff --git a/include/llvm/MC/MCExpr.h b/include/llvm/MC/MCExpr.h
index 521fde6982b5..0f285999ad62 100644
--- a/include/llvm/MC/MCExpr.h
+++ b/include/llvm/MC/MCExpr.h
@@ -171,8 +171,10 @@ public:
VK_ARM_GOTTPOFF,
VK_PPC_TOC,
- VK_PPC_HA16, // ha16(symbol)
- VK_PPC_LO16 // lo16(symbol)
+ VK_PPC_DARWIN_HA16, // ha16(symbol)
+ VK_PPC_DARWIN_LO16, // lo16(symbol)
+ VK_PPC_GAS_HA16, // symbol@ha
+ VK_PPC_GAS_LO16 // symbol@l
};
private:
diff --git a/include/llvm/MC/MCInstPrinter.h b/include/llvm/MC/MCInstPrinter.h
index 066955867c59..39002dabca14 100644
--- a/include/llvm/MC/MCInstPrinter.h
+++ b/include/llvm/MC/MCInstPrinter.h
@@ -45,8 +45,8 @@ public:
/// "MOV32ri") or empty if we can't resolve it.
virtual StringRef getOpcodeName(unsigned Opcode) const;
- /// getRegName - Return the assembler register name.
- virtual StringRef getRegName(unsigned RegNo) const;
+ /// printRegName - Print the assembler register name.
+ virtual void printRegName(raw_ostream &OS, unsigned RegNo) const;
unsigned getAvailableFeatures() const { return AvailableFeatures; }
void setAvailableFeatures(unsigned Value) { AvailableFeatures = Value; }
diff --git a/include/llvm/MC/MCParser/MCAsmLexer.h b/include/llvm/MC/MCParser/MCAsmLexer.h
index 606725a98515..47c580f85b8c 100644
--- a/include/llvm/MC/MCParser/MCAsmLexer.h
+++ b/include/llvm/MC/MCParser/MCAsmLexer.h
@@ -44,6 +44,7 @@ public:
Colon,
Plus, Minus, Tilde,
Slash, // '/'
+ BackSlash, // '\'
LParen, RParen, LBrac, RBrac, LCurly, RCurly,
Star, Dot, Comma, Dollar, Equal, EqualEqual,
diff --git a/include/llvm/MC/MCParser/MCAsmParser.h b/include/llvm/MC/MCParser/MCAsmParser.h
index 54979d977db7..73766930dfe1 100644
--- a/include/llvm/MC/MCParser/MCAsmParser.h
+++ b/include/llvm/MC/MCParser/MCAsmParser.h
@@ -71,7 +71,9 @@ public:
/// Warning - Emit a warning at the location \arg L, with the message \arg
/// Msg.
- virtual void Warning(SMLoc L, const Twine &Msg) = 0;
+ ///
+ /// \return The return value is true, if warnings are fatal.
+ virtual bool Warning(SMLoc L, const Twine &Msg) = 0;
/// Error - Emit an error at the location \arg L, with the message \arg
/// Msg.
diff --git a/include/llvm/MC/MCParser/MCAsmParserExtension.h b/include/llvm/MC/MCParser/MCAsmParserExtension.h
index ceb57f57e9e1..4e2aee992877 100644
--- a/include/llvm/MC/MCParser/MCAsmParserExtension.h
+++ b/include/llvm/MC/MCParser/MCAsmParserExtension.h
@@ -56,7 +56,7 @@ public:
MCAsmParser &getParser() { return *Parser; }
SourceMgr &getSourceManager() { return getParser().getSourceManager(); }
MCStreamer &getStreamer() { return getParser().getStreamer(); }
- void Warning(SMLoc L, const Twine &Msg) {
+ bool Warning(SMLoc L, const Twine &Msg) {
return getParser().Warning(L, Msg);
}
bool Error(SMLoc L, const Twine &Msg) {
diff --git a/include/llvm/MC/MCStreamer.h b/include/llvm/MC/MCStreamer.h
index b005c8bd886b..c05a9251dc74 100644
--- a/include/llvm/MC/MCStreamer.h
+++ b/include/llvm/MC/MCStreamer.h
@@ -18,6 +18,7 @@
#include "llvm/Support/DataTypes.h"
#include "llvm/MC/MCDirectives.h"
#include "llvm/MC/MCDwarf.h"
+#include "llvm/MC/MCWin64EH.h"
namespace llvm {
class MCAsmInfo;
@@ -50,10 +51,18 @@ namespace llvm {
MCStreamer(const MCStreamer&); // DO NOT IMPLEMENT
MCStreamer &operator=(const MCStreamer&); // DO NOT IMPLEMENT
+ bool EmitEHFrame;
+ bool EmitDebugFrame;
+
std::vector<MCDwarfFrameInfo> FrameInfos;
MCDwarfFrameInfo *getCurrentFrameInfo();
void EnsureValidFrame();
+ std::vector<MCWin64EHUnwindInfo *> W64UnwindInfos;
+ MCWin64EHUnwindInfo *CurrentW64UnwindInfo;
+ void setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame);
+ void EnsureValidW64UnwindInfo();
+
const MCSymbol* LastNonPrivate;
/// SectionStack - This is stack of current and previous section
@@ -67,8 +76,12 @@ namespace llvm {
const MCExpr *BuildSymbolDiff(MCContext &Context, const MCSymbol *A,
const MCSymbol *B);
- const MCExpr *ForceExpAbs(MCStreamer *Streamer, MCContext &Context,
- const MCExpr* Expr);
+ const MCExpr *ForceExpAbs(const MCExpr* Expr);
+
+ void EmitFrames(bool usingCFI);
+
+ MCWin64EHUnwindInfo *getCurrentW64UnwindInfo(){return CurrentW64UnwindInfo;}
+ void EmitW64Tables();
public:
virtual ~MCStreamer();
@@ -83,6 +96,14 @@ namespace llvm {
return FrameInfos[i];
}
+ unsigned getNumW64UnwindInfos() {
+ return W64UnwindInfos.size();
+ }
+
+ MCWin64EHUnwindInfo &getW64UnwindInfo(unsigned i) {
+ return *W64UnwindInfos[i];
+ }
+
/// @name Assembly File Formatting.
/// @{
@@ -174,6 +195,17 @@ namespace llvm {
}
}
+ /// SwitchSectionNoChange - Set the current section where code is being
+ /// emitted to @p Section. This is required to update CurSection. This
+ /// version does not call ChangeSection.
+ void SwitchSectionNoChange(const MCSection *Section) {
+ assert(Section && "Cannot switch to a null section!");
+ const MCSection *curSection = SectionStack.back().first;
+ SectionStack.back().second = curSection;
+ if (Section != curSection)
+ SectionStack.back().first = Section;
+ }
+
/// InitSections - Create the default sections and set the initial one.
virtual void InitSections() = 0;
@@ -288,6 +320,7 @@ namespace llvm {
/// if non-zero. This must be a power of 2 on some targets.
virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment = 0) = 0;
+
/// @}
/// @name Generating Data
/// @{
@@ -436,6 +469,7 @@ namespace llvm {
void EmitDwarfSetLineAddr(int64_t LineDelta, const MCSymbol *Label,
int PointerSize);
+ virtual void EmitCFISections(bool EH, bool Debug);
virtual void EmitCFIStartProc();
virtual void EmitCFIEndProc();
virtual void EmitCFIDefCfa(int64_t Register, int64_t Offset);
@@ -450,6 +484,21 @@ namespace llvm {
virtual void EmitCFIRelOffset(int64_t Register, int64_t Offset);
virtual void EmitCFIAdjustCfaOffset(int64_t Adjustment);
+ virtual void EmitWin64EHStartProc(const MCSymbol *Symbol);
+ virtual void EmitWin64EHEndProc();
+ virtual void EmitWin64EHStartChained();
+ virtual void EmitWin64EHEndChained();
+ virtual void EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
+ bool Except);
+ virtual void EmitWin64EHHandlerData();
+ virtual void EmitWin64EHPushReg(unsigned Register);
+ virtual void EmitWin64EHSetFrame(unsigned Register, unsigned Offset);
+ virtual void EmitWin64EHAllocStack(unsigned Size);
+ virtual void EmitWin64EHSaveReg(unsigned Register, unsigned Offset);
+ virtual void EmitWin64EHSaveXMM(unsigned Register, unsigned Offset);
+ virtual void EmitWin64EHPushFrame(bool Code);
+ virtual void EmitWin64EHEndProlog();
+
/// EmitInstruction - Emit the given @p Instruction into the current
/// section.
virtual void EmitInstruction(const MCInst &Inst) = 0;
diff --git a/include/llvm/MC/MCWin64EH.h b/include/llvm/MC/MCWin64EH.h
new file mode 100644
index 000000000000..eb4665a2e994
--- /dev/null
+++ b/include/llvm/MC/MCWin64EH.h
@@ -0,0 +1,93 @@
+//===- MCWin64EH.h - Machine Code Win64 EH support --------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains declarations to support the Win64 Exception Handling
+// scheme in MC.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCWIN64EH_H
+#define LLVM_MC_MCWIN64EH_H
+
+#include "llvm/Support/Win64EH.h"
+#include <cassert>
+#include <vector>
+
+namespace llvm {
+ class StringRef;
+ class MCStreamer;
+ class MCSymbol;
+
+ class MCWin64EHInstruction {
+ public:
+ typedef Win64EH::UnwindOpcodes OpType;
+ private:
+ OpType Operation;
+ MCSymbol *Label;
+ unsigned Offset;
+ unsigned Register;
+ public:
+ MCWin64EHInstruction(OpType Op, MCSymbol *L, unsigned Reg)
+ : Operation(Op), Label(L), Offset(0), Register(Reg) {
+ assert(Op == Win64EH::UOP_PushNonVol);
+ }
+ MCWin64EHInstruction(MCSymbol *L, unsigned Size)
+ : Operation(Size>128 ? Win64EH::UOP_AllocLarge : Win64EH::UOP_AllocSmall),
+ Label(L), Offset(Size) { }
+ MCWin64EHInstruction(OpType Op, MCSymbol *L, unsigned Reg, unsigned Off)
+ : Operation(Op), Label(L), Offset(Off), Register(Reg) {
+ assert(Op == Win64EH::UOP_SetFPReg ||
+ Op == Win64EH::UOP_SaveNonVol ||
+ Op == Win64EH::UOP_SaveNonVolBig ||
+ Op == Win64EH::UOP_SaveXMM128 ||
+ Op == Win64EH::UOP_SaveXMM128Big);
+ }
+ MCWin64EHInstruction(OpType Op, MCSymbol *L, bool Code)
+ : Operation(Op), Label(L), Offset(Code ? 1 : 0) {
+ assert(Op == Win64EH::UOP_PushMachFrame);
+ }
+ OpType getOperation() const { return Operation; }
+ MCSymbol *getLabel() const { return Label; }
+ unsigned getOffset() const { return Offset; }
+ unsigned getSize() const { return Offset; }
+ unsigned getRegister() const { return Register; }
+ bool isPushCodeFrame() const { return Offset == 1; }
+ };
+
+ struct MCWin64EHUnwindInfo {
+ MCWin64EHUnwindInfo() : Begin(0), End(0), ExceptionHandler(0),
+ Function(0), PrologEnd(0), Symbol(0),
+ HandlesUnwind(false), HandlesExceptions(false),
+ LastFrameInst(-1), ChainedParent(0),
+ Instructions() {}
+ MCSymbol *Begin;
+ MCSymbol *End;
+ const MCSymbol *ExceptionHandler;
+ const MCSymbol *Function;
+ MCSymbol *PrologEnd;
+ MCSymbol *Symbol;
+ bool HandlesUnwind;
+ bool HandlesExceptions;
+ int LastFrameInst;
+ MCWin64EHUnwindInfo *ChainedParent;
+ std::vector<MCWin64EHInstruction> Instructions;
+ };
+
+ class MCWin64EHUnwindEmitter {
+ public:
+ static StringRef GetSectionSuffix(const MCSymbol *func);
+ //
+ // This emits the unwind info sections (.pdata and .xdata in PE/COFF).
+ //
+ static void Emit(MCStreamer &streamer);
+ static void EmitUnwindInfo(MCStreamer &streamer, MCWin64EHUnwindInfo *info);
+ };
+} // end namespace llvm
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-25 03:38:22 +0000