[llvm] r174663 - "Clean up" line section symbol emission by emitting the section
Eric Christopher
echristo at gmail.com
Thu Feb 7 13:19:50 PST 2013
Author: echristo
Date: Thu Feb 7 15:19:50 2013
New Revision: 174663
URL: http://llvm.org/viewvc/llvm-project?rev=174663&view=rev
Log:
"Clean up" line section symbol emission by emitting the section
syms before constructing the compile units so we're not emitting
section references to sections not there already.
Modified:
llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=174663&r1=174662&r2=174663&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Thu Feb 7 15:19:50 2013
@@ -165,7 +165,7 @@ DwarfDebug::DwarfDebug(AsmPrinter *A, Mo
DwarfInfoSectionSym = DwarfAbbrevSectionSym = 0;
DwarfStrSectionSym = TextSectionSym = 0;
- DwarfDebugRangeSectionSym = DwarfDebugLocSectionSym = 0;
+ DwarfDebugRangeSectionSym = DwarfDebugLocSectionSym = DwarfLineSectionSym = 0;
DwarfAbbrevDWOSectionSym = DwarfStrDWOSectionSym = 0;
FunctionBeginSym = FunctionEndSym = 0;
@@ -677,7 +677,7 @@ CompileUnit *DwarfDebug::constructCompil
NewCU->addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4, 0);
else
NewCU->addDelta(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4,
- LineTableStartSym, Asm->GetTempSymbol("section_line"));
+ LineTableStartSym, DwarfLineSectionSym);
if (!CompilationDir.empty())
NewCU->addString(Die, dwarf::DW_AT_comp_dir, CompilationDir);
@@ -782,6 +782,9 @@ bool DwarfDebug::collectLegacyDebugInfo(
}
if (!HasDebugInfo) return false;
+ // Emit initial sections so we can refer to them later.
+ emitSectionLabels();
+
// Create all the compile unit DIEs.
for (DebugInfoFinder::iterator I = DbgFinder.compile_unit_begin(),
E = DbgFinder.compile_unit_end(); I != E; ++I)
@@ -819,6 +822,9 @@ void DwarfDebug::beginModule() {
// module using debug info finder to collect debug info.
NamedMDNode *CU_Nodes = M->getNamedMetadata("llvm.dbg.cu");
if (CU_Nodes) {
+ // Emit initial sections so we can reference labels later.
+ emitSectionLabels();
+
for (unsigned i = 0, e = CU_Nodes->getNumOperands(); i != e; ++i) {
DICompileUnit CUNode(CU_Nodes->getOperand(i));
CompileUnit *CU = constructCompileUnit(CUNode);
@@ -951,9 +957,6 @@ void DwarfDebug::endModule() {
// Finalize the debug info for the module.
finalizeModuleInfo();
- // Emit initial sections.
- emitSectionLabels();
-
if (!useSplitDwarf()) {
// Emit all the DIEs into a debug info section.
emitDebugInfo();
@@ -1775,7 +1778,8 @@ void DwarfDebug::emitSectionLabels() {
if (const MCSection *MacroInfo = TLOF.getDwarfMacroInfoSection())
emitSectionSym(Asm, MacroInfo);
- emitSectionSym(Asm, TLOF.getDwarfLineSection(), "section_line");
+ DwarfLineSectionSym =
+ emitSectionSym(Asm, TLOF.getDwarfLineSection(), "section_line");
emitSectionSym(Asm, TLOF.getDwarfLocSection());
emitSectionSym(Asm, TLOF.getDwarfPubTypesSection());
DwarfStrSectionSym =
@@ -2489,7 +2493,7 @@ CompileUnit *DwarfDebug::constructSkelet
// compile unit in debug_line section.
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
NewCU->addLabel(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_sec_offset,
- Asm->GetTempSymbol("section_line"));
+ DwarfLineSectionSym);
else
NewCU->addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_sec_offset, 0);
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h?rev=174663&r1=174662&r2=174663&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h Thu Feb 7 15:19:50 2013
@@ -386,7 +386,7 @@ class DwarfDebug {
// section offsets and are created by EmitSectionLabels.
MCSymbol *DwarfInfoSectionSym, *DwarfAbbrevSectionSym;
MCSymbol *DwarfStrSectionSym, *TextSectionSym, *DwarfDebugRangeSectionSym;
- MCSymbol *DwarfDebugLocSectionSym;
+ MCSymbol *DwarfDebugLocSectionSym, *DwarfLineSectionSym;
MCSymbol *FunctionBeginSym, *FunctionEndSym;
MCSymbol *DwarfAbbrevDWOSectionSym, *DwarfStrDWOSectionSym;
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