summaryrefslogtreecommitdiffstats
path: root/lib/MC/MCStreamer.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/MC/MCStreamer.cpp')
-rw-r--r--lib/MC/MCStreamer.cpp109
1 files changed, 80 insertions, 29 deletions
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 3afa22b..43e62ff 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -16,7 +16,6 @@
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
#include <cstdlib>
using namespace llvm;
@@ -94,17 +93,18 @@ void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size,
/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the
/// client having to pass in a MCExpr for constant integers.
-void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace) {
- SmallString<32> Tmp;
+void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace,
+ unsigned Padding) {
+ SmallString<128> Tmp;
raw_svector_ostream OSE(Tmp);
- MCObjectWriter::EncodeULEB128(Value, OSE);
+ MCObjectWriter::EncodeULEB128(Value, OSE, Padding);
EmitBytes(OSE.str(), AddrSpace);
}
/// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the
/// client having to pass in a MCExpr for constant integers.
void MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) {
- SmallString<32> Tmp;
+ SmallString<128> Tmp;
raw_svector_ostream OSE(Tmp);
MCObjectWriter::EncodeSLEB128(Value, OSE);
EmitBytes(OSE.str(), AddrSpace);
@@ -128,6 +128,10 @@ void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
AddrSpace);
}
+void MCStreamer::EmitGPRel64Value(const MCExpr *Value) {
+ report_fatal_error("unsupported directive in streamer");
+}
+
void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
report_fatal_error("unsupported directive in streamer");
}
@@ -142,8 +146,9 @@ void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
}
bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
+ StringRef Directory,
StringRef Filename) {
- return getContext().GetDwarfFile(Filename, FileNo) == 0;
+ return getContext().GetDwarfFile(Directory, Filename, FileNo) == 0;
}
void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
@@ -186,9 +191,8 @@ void MCStreamer::EmitDataRegion() {
if (!MAI.getSupportsDataRegions()) return;
// Generate a unique symbol name.
- MCSymbol *NewSym = Context.GetOrCreateSymbol(
- Twine(MAI.getDataBeginLabelName()) +
- utostr(UniqueDataBeginSuffix++));
+ MCSymbol *NewSym = Context.GetOrCreateSymbol(MAI.getDataBeginLabelName() +
+ Twine(UniqueDataBeginSuffix++));
EmitLabel(NewSym);
RegionIndicator = Data;
@@ -202,9 +206,8 @@ void MCStreamer::EmitCodeRegion() {
if (!MAI.getSupportsDataRegions()) return;
// Generate a unique symbol name.
- MCSymbol *NewSym = Context.GetOrCreateSymbol(
- Twine(MAI.getCodeBeginLabelName()) +
- utostr(UniqueCodeBeginSuffix++));
+ MCSymbol *NewSym = Context.GetOrCreateSymbol(MAI.getCodeBeginLabelName() +
+ Twine(UniqueCodeBeginSuffix++));
EmitLabel(NewSym);
RegionIndicator = Code;
@@ -218,9 +221,9 @@ void MCStreamer::EmitJumpTable8Region() {
if (!MAI.getSupportsDataRegions()) return;
// Generate a unique symbol name.
- MCSymbol *NewSym = Context.GetOrCreateSymbol(
- Twine(MAI.getJumpTable8BeginLabelName()) +
- utostr(UniqueDataBeginSuffix++));
+ MCSymbol *NewSym =
+ Context.GetOrCreateSymbol(MAI.getJumpTable8BeginLabelName() +
+ Twine(UniqueDataBeginSuffix++));
EmitLabel(NewSym);
RegionIndicator = JumpTable8;
@@ -234,9 +237,9 @@ void MCStreamer::EmitJumpTable16Region() {
if (!MAI.getSupportsDataRegions()) return;
// Generate a unique symbol name.
- MCSymbol *NewSym = Context.GetOrCreateSymbol(
- Twine(MAI.getJumpTable16BeginLabelName()) +
- utostr(UniqueDataBeginSuffix++));
+ MCSymbol *NewSym =
+ Context.GetOrCreateSymbol(MAI.getJumpTable16BeginLabelName() +
+ Twine(UniqueDataBeginSuffix++));
EmitLabel(NewSym);
RegionIndicator = JumpTable16;
@@ -251,9 +254,9 @@ void MCStreamer::EmitJumpTable32Region() {
if (!MAI.getSupportsDataRegions()) return;
// Generate a unique symbol name.
- MCSymbol *NewSym = Context.GetOrCreateSymbol(
- Twine(MAI.getJumpTable32BeginLabelName()) +
- utostr(UniqueDataBeginSuffix++));
+ MCSymbol *NewSym =
+ Context.GetOrCreateSymbol(MAI.getJumpTable32BeginLabelName() +
+ Twine(UniqueDataBeginSuffix++));
EmitLabel(NewSym);
RegionIndicator = JumpTable32;
@@ -277,8 +280,17 @@ void MCStreamer::EmitCFIStartProc() {
report_fatal_error("Starting a frame before finishing the previous one!");
MCDwarfFrameInfo Frame;
- Frame.Function = LastSymbol;
+ EmitCFIStartProcImpl(Frame);
+ FrameInfos.push_back(Frame);
+ RegionIndicator = Code;
+}
+
+void MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
+}
+
+void MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) {
+ Frame.Function = LastSymbol;
// If the function is externally visible, we need to create a local
// symbol to avoid relocations.
StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix();
@@ -288,16 +300,20 @@ void MCStreamer::EmitCFIStartProc() {
Frame.Begin = getContext().CreateTempSymbol();
EmitLabel(Frame.Begin);
}
-
- FrameInfos.push_back(Frame);
- RegionIndicator = Code;
}
void MCStreamer::EmitCFIEndProc() {
EnsureValidFrame();
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
- CurFrame->End = getContext().CreateTempSymbol();
- EmitLabel(CurFrame->End);
+ EmitCFIEndProcImpl(*CurFrame);
+}
+
+void MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
+}
+
+void MCStreamer::RecordProcEnd(MCDwarfFrameInfo &Frame) {
+ Frame.End = getContext().CreateTempSymbol();
+ EmitLabel(Frame.End);
}
void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
@@ -386,7 +402,7 @@ void MCStreamer::EmitCFIRememberState() {
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
MCSymbol *Label = getContext().CreateTempSymbol();
EmitLabel(Label);
- MCCFIInstruction Instruction(MCCFIInstruction::Remember, Label);
+ MCCFIInstruction Instruction(MCCFIInstruction::RememberState, Label);
CurFrame->Instructions.push_back(Instruction);
}
@@ -396,7 +412,7 @@ void MCStreamer::EmitCFIRestoreState() {
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
MCSymbol *Label = getContext().CreateTempSymbol();
EmitLabel(Label);
- MCCFIInstruction Instruction(MCCFIInstruction::Restore, Label);
+ MCCFIInstruction Instruction(MCCFIInstruction::RestoreState, Label);
CurFrame->Instructions.push_back(Instruction);
}
@@ -409,6 +425,30 @@ void MCStreamer::EmitCFISameValue(int64_t Register) {
CurFrame->Instructions.push_back(Instruction);
}
+void MCStreamer::EmitCFIRestore(int64_t Register) {
+ EnsureValidFrame();
+ MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+ MCSymbol *Label = getContext().CreateTempSymbol();
+ EmitLabel(Label);
+ MCCFIInstruction Instruction(MCCFIInstruction::Restore, Label, Register);
+ CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIEscape(StringRef Values) {
+ EnsureValidFrame();
+ MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+ MCSymbol *Label = getContext().CreateTempSymbol();
+ EmitLabel(Label);
+ MCCFIInstruction Instruction(MCCFIInstruction::Escape, Label, Values);
+ CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFISignalFrame() {
+ EnsureValidFrame();
+ MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+ CurFrame->IsSignalFrame = true;
+}
+
void MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) {
W64UnwindInfos.push_back(Frame);
CurrentW64UnwindInfo = W64UnwindInfos.back();
@@ -559,6 +599,10 @@ void MCStreamer::EmitWin64EHEndProlog() {
EmitLabel(CurFrame->PrologEnd);
}
+void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
+ llvm_unreachable("This file format doesn't support this directive");
+}
+
void MCStreamer::EmitFnStart() {
errs() << "Not implemented yet\n";
abort();
@@ -631,3 +675,10 @@ void MCStreamer::EmitW64Tables() {
MCWin64EHUnwindEmitter::Emit(*this);
}
+
+void MCStreamer::Finish() {
+ if (!FrameInfos.empty() && !FrameInfos.back().End)
+ report_fatal_error("Unfinished frame!");
+
+ FinishImpl();
+}
OpenPOWER on IntegriCloud