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Add debug support for X86/ELF targets (Linux). This allows llvm-gcc4

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generated object modules to be debugged with gdb. Hopefully this helps
pre-release debugging.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31299 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2006-10-30 22:32:30 +00:00
parent 6ce644392e
commit 02b8511364
9 changed files with 59 additions and 17 deletions
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20
lib/CodeGen/DwarfWriter.cpp
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@ -1921,8 +1921,8 @@ CompileUnit *Dwarf::NewCompileUnit(CompileUnitDesc *UnitDesc,
unsigned ID) {
// Construct debug information entry.
DIE *Die = new DIE(DW_TAG_compile_unit);
Die->AddDelta (DW_AT_stmt_list, DW_FORM_data4, DWLabel("line", 0),
DWLabel("section_line", 0));
Die->AddDelta (DW_AT_stmt_list, DW_FORM_data4, DWLabel("section_line", 0),
DWLabel("section_line", 0));
// Die->AddLabel (DW_AT_high_pc, DW_FORM_addr, DWLabel("text_end", 0));
// Die->AddLabel (DW_AT_low_pc, DW_FORM_addr, DWLabel("text_begin", 0));
Die->AddString(DW_AT_producer, DW_FORM_string, UnitDesc->getProducer());
@ -2175,21 +2175,20 @@ void Dwarf::EmitInitial() {
didInitial = true;
// Dwarf sections base addresses.
Asm->SwitchToDataSection(TAI->getDwarfFrameSection(), 0);
EmitLabel("section_frame", 0);
if (TAI->getDwarfRequiresFrameSection()) {
Asm->SwitchToDataSection(TAI->getDwarfFrameSection(), 0);
EmitLabel("section_frame", 0);
}
Asm->SwitchToDataSection(TAI->getDwarfInfoSection(), 0);
EmitLabel("section_info", 0);
EmitLabel("info", 0);
Asm->SwitchToDataSection(TAI->getDwarfAbbrevSection(), 0);
EmitLabel("section_abbrev", 0);
EmitLabel("abbrev", 0);
Asm->SwitchToDataSection(TAI->getDwarfARangesSection(), 0);
EmitLabel("section_aranges", 0);
Asm->SwitchToDataSection(TAI->getDwarfMacInfoSection(), 0);
EmitLabel("section_macinfo", 0);
Asm->SwitchToDataSection(TAI->getDwarfLineSection(), 0);
EmitLabel("section_line", 0);
EmitLabel("line", 0);
Asm->SwitchToDataSection(TAI->getDwarfLocSection(), 0);
EmitLabel("section_loc", 0);
Asm->SwitchToDataSection(TAI->getDwarfPubNamesSection(), 0);
@ -2198,7 +2197,6 @@ void Dwarf::EmitInitial() {
EmitLabel("section_str", 0);
Asm->SwitchToDataSection(TAI->getDwarfRangesSection(), 0);
EmitLabel("section_ranges", 0);
Asm->SwitchToTextSection(TAI->getTextSection(), 0);
EmitLabel("text_begin", 0);
Asm->SwitchToDataSection(TAI->getDataSection(), 0);
@ -2629,6 +2627,9 @@ void Dwarf::EmitDebugLines() const {
/// EmitInitialDebugFrame - Emit common frame info into a debug frame section.
///
void Dwarf::EmitInitialDebugFrame() {
if (TAI->getDwarfRequiresFrameSection())
return;
int stackGrowth =
Asm->TM.getFrameInfo()->getStackGrowthDirection() ==
TargetFrameInfo::StackGrowsUp ?
@ -2664,6 +2665,9 @@ void Dwarf::EmitInitialDebugFrame() {
/// EmitFunctionDebugFrame - Emit per function frame info into a debug frame
/// section.
void Dwarf::EmitFunctionDebugFrame() {
if (TAI->getDwarfRequiresFrameSection())
return;
// Start the dwarf frame section.
Asm->SwitchToDataSection(TAI->getDwarfFrameSection(), 0);