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Create symbols marking the start of a section earlier.

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This lets us pass the symbol to the constructor and avoid the mutable field.

This also opens the way for outputting the symbol only when needed, instead
of outputting them at the start of the file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231859 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2015-03-10 22:00:25 +00:00
parent a1cc020e29
commit f3d745cdc9
11 changed files with 152 additions and 126 deletions
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44
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -243,12 +243,10 @@ DwarfDebug::~DwarfDebug() { }
// Switch to the specified MCSection and emit an assembler
// temporary label to it if SymbolStem is specified.
static void emitSectionSym(AsmPrinter *Asm, const MCSection *Section,
StringRef SymbolStem) {
static void emitSectionSym(AsmPrinter *Asm, const MCSection *Section) {
Asm->OutStreamer.SwitchSection(Section);
MCSymbol *TmpSym = Asm->GetTempSymbol(SymbolStem);
MCSymbol *TmpSym = Section->getBeginSymbol();
Asm->OutStreamer.EmitLabel(TmpSym);
Section->setBeginSymbol(*TmpSym);
}
static bool isObjCClass(StringRef Name) {
@ -628,7 +626,7 @@ void DwarfDebug::endModule() {
// If we aren't actually generating debug info (check beginModule -
// conditionalized on !DisableDebugInfoPrinting and the presence of the
// llvm.dbg.cu metadata node)
if (!TLOF.getDwarfInfoSection()->getBeginSymbol())
if (!TLOF.getDwarfInfoSection()->getBeginSymbol()->isInSection())
return;
// Finalize the debug info for the module.
@ -1306,24 +1304,24 @@ void DwarfDebug::emitSectionLabels() {
const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
// Dwarf sections base addresses.
emitSectionSym(Asm, TLOF.getDwarfInfoSection(), "section_info");
emitSectionSym(Asm, TLOF.getDwarfInfoSection());
if (useSplitDwarf()) {
emitSectionSym(Asm, TLOF.getDwarfInfoDWOSection(), "section_info_dwo");
emitSectionSym(Asm, TLOF.getDwarfTypesDWOSection(), "section_types_dwo");
emitSectionSym(Asm, TLOF.getDwarfInfoDWOSection());
emitSectionSym(Asm, TLOF.getDwarfTypesDWOSection());
}
emitSectionSym(Asm, TLOF.getDwarfAbbrevSection(), "section_abbrev");
emitSectionSym(Asm, TLOF.getDwarfAbbrevSection());
if (useSplitDwarf())
emitSectionSym(Asm, TLOF.getDwarfAbbrevDWOSection(), "section_abbrev_dwo");
emitSectionSym(Asm, TLOF.getDwarfAbbrevDWOSection());
emitSectionSym(Asm, TLOF.getDwarfLineSection(), "section_line");
emitSectionSym(Asm, TLOF.getDwarfStrSection(), "info_string");
emitSectionSym(Asm, TLOF.getDwarfLineSection());
emitSectionSym(Asm, TLOF.getDwarfStrSection());
if (useSplitDwarf()) {
emitSectionSym(Asm, TLOF.getDwarfStrDWOSection(), "skel_string");
emitSectionSym(Asm, TLOF.getDwarfAddrSection(), "addr_sec");
emitSectionSym(Asm, TLOF.getDwarfLocDWOSection(), "skel_loc");
emitSectionSym(Asm, TLOF.getDwarfStrDWOSection());
emitSectionSym(Asm, TLOF.getDwarfAddrSection());
emitSectionSym(Asm, TLOF.getDwarfLocDWOSection());
} else
emitSectionSym(Asm, TLOF.getDwarfLocSection(), "section_debug_loc");
emitSectionSym(Asm, TLOF.getDwarfRangesSection(), "debug_range");
emitSectionSym(Asm, TLOF.getDwarfLocSection());
emitSectionSym(Asm, TLOF.getDwarfRangesSection());
}
// Emit the debug info section.
@ -1364,9 +1362,9 @@ void DwarfDebug::emitEndOfLineMatrix(unsigned SectionEnd) {
}
void DwarfDebug::emitAccel(DwarfAccelTable &Accel, const MCSection *Section,
StringRef TableName, StringRef SymName) {
StringRef TableName) {
Accel.FinalizeTable(Asm, TableName);
emitSectionSym(Asm, Section, SymName);
emitSectionSym(Asm, Section);
// Emit the full data.
Accel.emit(Asm, Section->getBeginSymbol(), this);
@ -1375,27 +1373,27 @@ void DwarfDebug::emitAccel(DwarfAccelTable &Accel, const MCSection *Section,
// Emit visible names into a hashed accelerator table section.
void DwarfDebug::emitAccelNames() {
emitAccel(AccelNames, Asm->getObjFileLowering().getDwarfAccelNamesSection(),
"Names", "names_begin");
"Names");
}
// Emit objective C classes and categories into a hashed accelerator table
// section.
void DwarfDebug::emitAccelObjC() {
emitAccel(AccelObjC, Asm->getObjFileLowering().getDwarfAccelObjCSection(),
"ObjC", "objc_begin");
"ObjC");
}
// Emit namespace dies into a hashed accelerator table.
void DwarfDebug::emitAccelNamespaces() {
emitAccel(AccelNamespace,
Asm->getObjFileLowering().getDwarfAccelNamespaceSection(),
"namespac", "namespac_begin");
"namespac");
}
// Emit type dies into a hashed accelerator table.
void DwarfDebug::emitAccelTypes() {
emitAccel(AccelTypes, Asm->getObjFileLowering().getDwarfAccelTypesSection(),
"types", "types_begin");
"types");
}
// Public name handling.