//===----------------------------------------------------------------------===//
#include "llvm/MC/MCContext.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCDwarf.h"
+#include "llvm/MC/MCLabel.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
-#include "llvm/MC/MCSectionMachO.h"
-#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionCOFF.h"
+#include "llvm/MC/MCSectionELF.h"
+#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCLabel.h"
-#include "llvm/MC/MCDwarf.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/Twine.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Signals.h"
+#include "llvm/Support/SourceMgr.h"
using namespace llvm;
typedef StringMap<const MCSectionMachO*> MachOUniqueMapTy;
typedef StringMap<const MCSectionCOFF*> COFFUniqueMapTy;
-MCContext::MCContext(const MCAsmInfo &mai, const MCRegisterInfo &mri,
- const MCObjectFileInfo *mofi, const SourceMgr *mgr) :
+MCContext::MCContext(const MCAsmInfo *mai, const MCRegisterInfo *mri,
+ const MCObjectFileInfo *mofi, const SourceMgr *mgr,
+ bool DoAutoReset) :
SrcMgr(mgr), MAI(mai), MRI(mri), MOFI(mofi),
Allocator(), Symbols(Allocator), UsedNames(Allocator),
NextUniqueID(0),
- CurrentDwarfLoc(0,0,0,DWARF2_FLAG_IS_STMT,0,0),
- AllowTemporaryLabels(true) {
+ CurrentDwarfLoc(0,0,0,DWARF2_FLAG_IS_STMT,0,0),
+ DwarfLocSeen(false), GenDwarfForAssembly(false), GenDwarfFileNumber(0),
+ AllowTemporaryLabels(true), DwarfCompileUnitID(0), AutoReset(DoAutoReset) {
+
+ error_code EC = llvm::sys::fs::current_path(CompilationDir);
+ assert(!EC && "Could not determine the current directory");
+ (void)EC;
+
MachOUniquingMap = 0;
ELFUniquingMap = 0;
COFFUniquingMap = 0;
SecureLog = 0;
SecureLogUsed = false;
- DwarfLocSeen = false;
- GenDwarfForAssembly = false;
- GenDwarfFileNumber = 0;
+ if (SrcMgr && SrcMgr->getNumBuffers() > 0)
+ MainFileName = SrcMgr->getMemoryBuffer(0)->getBufferIdentifier();
+ else
+ MainFileName = "";
}
MCContext::~MCContext() {
+
+ if (AutoReset)
+ reset();
+
// NOTE: The symbols are all allocated out of a bump pointer allocator,
// we don't need to free them here.
+
+ // If the stream for the .secure_log_unique directive was created free it.
+ delete (raw_ostream*)SecureLog;
+}
+
+//===----------------------------------------------------------------------===//
+// Module Lifetime Management
+//===----------------------------------------------------------------------===//
+
+void MCContext::reset() {
+ UsedNames.clear();
+ Symbols.clear();
+ Allocator.Reset();
+ Instances.clear();
+ MCDwarfFilesCUMap.clear();
+ MCDwarfDirsCUMap.clear();
+ MCGenDwarfLabelEntries.clear();
+ DwarfDebugFlags = StringRef();
+ MCLineSections.clear();
+ MCLineSectionOrder.clear();
+ DwarfCompileUnitID = 0;
+ MCLineTableSymbols.clear();
+ CurrentDwarfLoc = MCDwarfLoc(0,0,0,DWARF2_FLAG_IS_STMT,0,0);
// If we have the MachO uniquing map, free it.
delete (MachOUniqueMapTy*)MachOUniquingMap;
delete (ELFUniqueMapTy*)ELFUniquingMap;
delete (COFFUniqueMapTy*)COFFUniquingMap;
+ MachOUniquingMap = 0;
+ ELFUniquingMap = 0;
+ COFFUniquingMap = 0;
- // If the stream for the .secure_log_unique directive was created free it.
- delete (raw_ostream*)SecureLog;
+ NextUniqueID = 0;
+ AllowTemporaryLabels = true;
+ DwarfLocSeen = false;
+ GenDwarfForAssembly = false;
+ GenDwarfFileNumber = 0;
}
//===----------------------------------------------------------------------===//
// Determine whether this is an assembler temporary or normal label, if used.
bool isTemporary = false;
if (AllowTemporaryLabels)
- isTemporary = Name.startswith(MAI.getPrivateGlobalPrefix());
+ isTemporary = Name.startswith(MAI->getPrivateGlobalPrefix());
StringMapEntry<bool> *NameEntry = &UsedNames.GetOrCreateValue(Name);
if (NameEntry->getValue()) {
MCSymbol *MCContext::CreateTempSymbol() {
SmallString<128> NameSV;
raw_svector_ostream(NameSV)
- << MAI.getPrivateGlobalPrefix() << "tmp" << NextUniqueID++;
+ << MAI->getPrivateGlobalPrefix() << "tmp" << NextUniqueID++;
return CreateSymbol(NameSV);
}
}
MCSymbol *MCContext::CreateDirectionalLocalSymbol(int64_t LocalLabelVal) {
- return GetOrCreateSymbol(Twine(MAI.getPrivateGlobalPrefix()) +
+ return GetOrCreateSymbol(Twine(MAI->getPrivateGlobalPrefix()) +
Twine(LocalLabelVal) +
"\2" +
Twine(NextInstance(LocalLabelVal)));
}
MCSymbol *MCContext::GetDirectionalLocalSymbol(int64_t LocalLabelVal,
int bORf) {
- return GetOrCreateSymbol(Twine(MAI.getPrivateGlobalPrefix()) +
+ return GetOrCreateSymbol(Twine(MAI->getPrivateGlobalPrefix()) +
Twine(LocalLabelVal) +
"\2" +
Twine(GetInstance(LocalLabelVal) + bORf));
return Symbols.lookup(Name);
}
+MCSymbol *MCContext::LookupSymbol(const Twine &Name) const {
+ SmallString<128> NameSV;
+ Name.toVector(NameSV);
+ return LookupSymbol(NameSV.str());
+}
+
//===----------------------------------------------------------------------===//
// Section Management
//===----------------------------------------------------------------------===//
return Result;
}
-const MCSection *MCContext::getCOFFSection(StringRef Section,
- unsigned Characteristics,
- int Selection,
- SectionKind Kind) {
+const MCSectionCOFF *MCContext::getCOFFSection(StringRef Section,
+ unsigned Characteristics,
+ SectionKind Kind, int Selection,
+ const MCSectionCOFF *Assoc) {
if (COFFUniquingMap == 0)
COFFUniquingMap = new COFFUniqueMapTy();
COFFUniqueMapTy &Map = *(COFFUniqueMapTy*)COFFUniquingMap;
MCSectionCOFF *Result = new (*this) MCSectionCOFF(Entry.getKey(),
Characteristics,
- Selection, Kind);
+ Selection, Assoc, Kind);
Entry.setValue(Result);
return Result;
}
+const MCSectionCOFF *MCContext::getCOFFSection(StringRef Section) {
+ if (COFFUniquingMap == 0)
+ COFFUniquingMap = new COFFUniqueMapTy();
+ COFFUniqueMapTy &Map = *(COFFUniqueMapTy*)COFFUniquingMap;
+
+ return Map.lookup(Section);
+}
+
//===----------------------------------------------------------------------===//
// Dwarf Management
//===----------------------------------------------------------------------===//
/// error and zero is returned and the client reports the error, else the
/// allocated file number is returned. The file numbers may be in any order.
unsigned MCContext::GetDwarfFile(StringRef Directory, StringRef FileName,
- unsigned FileNumber) {
+ unsigned FileNumber, unsigned CUID) {
// TODO: a FileNumber of zero says to use the next available file number.
// Note: in GenericAsmParser::ParseDirectiveFile() FileNumber was checked
// to not be less than one. This needs to be change to be not less than zero.
+ SmallVectorImpl<MCDwarfFile *>& MCDwarfFiles = MCDwarfFilesCUMap[CUID];
+ SmallVectorImpl<StringRef>& MCDwarfDirs = MCDwarfDirsCUMap[CUID];
// Make space for this FileNumber in the MCDwarfFiles vector if needed.
if (FileNumber >= MCDwarfFiles.size()) {
MCDwarfFiles.resize(FileNumber + 1);
if (Directory.empty()) {
// Separate the directory part from the basename of the FileName.
- std::pair<StringRef, StringRef> Slash = FileName.rsplit('/');
- Directory = Slash.second;
- if (!Directory.empty()) {
- Directory = Slash.first;
- FileName = Slash.second;
+ StringRef tFileName = sys::path::filename(FileName);
+ if (!tFileName.empty()) {
+ Directory = sys::path::parent_path(FileName);
+ if (!Directory.empty())
+ FileName = tFileName;
}
}
/// isValidDwarfFileNumber - takes a dwarf file number and returns true if it
/// currently is assigned and false otherwise.
-bool MCContext::isValidDwarfFileNumber(unsigned FileNumber) {
+bool MCContext::isValidDwarfFileNumber(unsigned FileNumber, unsigned CUID) {
+ SmallVectorImpl<MCDwarfFile *>& MCDwarfFiles = MCDwarfFilesCUMap[CUID];
if(FileNumber == 0 || FileNumber >= MCDwarfFiles.size())
return false;
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