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path: root/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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Diffstat (limited to 'lib/CodeGen/AsmPrinter/DwarfDebug.cpp')
-rw-r--r--lib/CodeGen/AsmPrinter/DwarfDebug.cpp91
1 files changed, 51 insertions, 40 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index d81e19c07a..6613aac87d 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -104,6 +104,11 @@ DwarfPubSections("generate-dwarf-pub-sections", cl::Hidden,
clEnumVal(Disable, "Disabled"), clEnumValEnd),
cl::init(Default));
+static cl::opt<unsigned>
+DwarfVersionNumber("dwarf-version", cl::Hidden,
+ cl::desc("Generate DWARF for dwarf version."),
+ cl::init(0));
+
static const char *const DWARFGroupName = "DWARF Emission";
static const char *const DbgTimerName = "DWARF Debug Writer";
@@ -212,7 +217,9 @@ DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
else
HasDwarfPubSections = DwarfPubSections == Enable;
- DwarfVersion = getDwarfVersionFromModule(MMI->getModule());
+ DwarfVersion = DwarfVersionNumber
+ ? DwarfVersionNumber
+ : getDwarfVersionFromModule(MMI->getModule());
{
NamedRegionTimer T(DbgTimerName, DWARFGroupName, TimePassesIsEnabled);
@@ -470,9 +477,9 @@ DIE *DwarfDebug::constructLexicalScopeDIE(CompileUnit *TheCU,
// .debug_range section has not been laid out yet. Emit offset in
// .debug_range as a uint, size 4, for now. emitDIE will handle
// DW_AT_ranges appropriately.
- TheCU->addUInt(ScopeDIE, dwarf::DW_AT_ranges, dwarf::DW_FORM_data4,
- DebugRangeSymbols.size() *
- Asm->getDataLayout().getPointerSize());
+ TheCU->addSectionOffset(ScopeDIE, dwarf::DW_AT_ranges,
+ DebugRangeSymbols.size() *
+ Asm->getDataLayout().getPointerSize());
for (SmallVectorImpl<InsnRange>::const_iterator RI = Ranges.begin(),
RE = Ranges.end();
RI != RE; ++RI) {
@@ -526,9 +533,9 @@ DIE *DwarfDebug::constructInlinedScopeDIE(CompileUnit *TheCU,
// .debug_range section has not been laid out yet. Emit offset in
// .debug_range as a uint, size 4, for now. emitDIE will handle
// DW_AT_ranges appropriately.
- TheCU->addUInt(ScopeDIE, dwarf::DW_AT_ranges, dwarf::DW_FORM_data4,
- DebugRangeSymbols.size() *
- Asm->getDataLayout().getPointerSize());
+ TheCU->addSectionOffset(ScopeDIE, dwarf::DW_AT_ranges,
+ DebugRangeSymbols.size() *
+ Asm->getDataLayout().getPointerSize());
for (SmallVectorImpl<InsnRange>::const_iterator RI = Ranges.begin(),
RE = Ranges.end();
RI != RE; ++RI) {
@@ -766,14 +773,15 @@ CompileUnit *DwarfDebug::constructCompileUnit(DICompileUnit DIUnit) {
// The line table entries are not always emitted in assembly, so it
// is not okay to use line_table_start here.
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_sec_offset,
- UseTheFirstCU ? Asm->GetTempSymbol("section_line")
- : LineTableStartSym);
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_stmt_list,
+ UseTheFirstCU ? Asm->GetTempSymbol("section_line")
+ : LineTableStartSym);
else if (UseTheFirstCU)
- NewCU->addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4, 0);
+ NewCU->addSectionOffset(Die, dwarf::DW_AT_stmt_list, 0);
else
- NewCU->addDelta(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4,
- LineTableStartSym, DwarfLineSectionSym);
+ NewCU->addSectionDelta(Die, dwarf::DW_AT_stmt_list,
+ LineTableStartSym, DwarfLineSectionSym);
// If we're using split dwarf the compilation dir is going to be in the
// skeleton CU and so we don't need to duplicate it here.
@@ -784,22 +792,22 @@ CompileUnit *DwarfDebug::constructCompileUnit(DICompileUnit DIUnit) {
// emit it here if we don't have a skeleton CU for split dwarf.
if (GenerateGnuPubSections) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(
- Die, dwarf::DW_AT_GNU_pubnames, dwarf::DW_FORM_sec_offset,
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_GNU_pubnames,
Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()));
else
- NewCU->addDelta(
- Die, dwarf::DW_AT_GNU_pubnames, dwarf::DW_FORM_data4,
+ NewCU->addSectionDelta(
+ Die, dwarf::DW_AT_GNU_pubnames,
Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()),
DwarfGnuPubNamesSectionSym);
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(
- Die, dwarf::DW_AT_GNU_pubtypes, dwarf::DW_FORM_sec_offset,
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_GNU_pubtypes,
Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()));
else
- NewCU->addDelta(
- Die, dwarf::DW_AT_GNU_pubtypes, dwarf::DW_FORM_data4,
+ NewCU->addSectionDelta(
+ Die, dwarf::DW_AT_GNU_pubtypes,
Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()),
DwarfGnuPubTypesSectionSym);
}
@@ -2957,11 +2965,10 @@ CompileUnit *DwarfDebug::constructSkeletonCU(const CompileUnit *CU) {
// Relocate to the beginning of the addr_base section, else 0 for the
// beginning of the one for this compile unit.
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_addr_base, dwarf::DW_FORM_sec_offset,
- DwarfAddrSectionSym);
+ NewCU->addSectionLabel(Die, dwarf::DW_AT_GNU_addr_base,
+ DwarfAddrSectionSym);
else
- NewCU->addUInt(Die, dwarf::DW_AT_GNU_addr_base, dwarf::DW_FORM_sec_offset,
- 0);
+ NewCU->addSectionOffset(Die, dwarf::DW_AT_GNU_addr_base, 0);
// 2.17.1 requires that we use DW_AT_low_pc for a single entry point
// into an entity. We're using 0, or a NULL label for this.
@@ -2971,10 +2978,10 @@ CompileUnit *DwarfDebug::constructSkeletonCU(const CompileUnit *CU) {
// compile unit in debug_line section.
// FIXME: Should handle multiple compile units.
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_sec_offset,
- DwarfLineSectionSym);
+ NewCU->addSectionLabel(Die, dwarf::DW_AT_stmt_list,
+ DwarfLineSectionSym);
else
- NewCU->addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_sec_offset, 0);
+ NewCU->addSectionOffset(Die, dwarf::DW_AT_stmt_list, 0);
if (!CompilationDir.empty())
NewCU->addLocalString(Die, dwarf::DW_AT_comp_dir, CompilationDir);
@@ -2982,27 +2989,31 @@ CompileUnit *DwarfDebug::constructSkeletonCU(const CompileUnit *CU) {
// Flags to let the linker know we have emitted new style pubnames.
if (GenerateGnuPubSections) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_pubnames, dwarf::DW_FORM_sec_offset,
- Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()));
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_GNU_pubnames,
+ Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()));
else
- NewCU->addDelta(Die, dwarf::DW_AT_GNU_pubnames, dwarf::DW_FORM_data4,
- Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()),
- DwarfGnuPubNamesSectionSym);
+ NewCU->addSectionDelta(
+ Die, dwarf::DW_AT_GNU_pubnames,
+ Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()),
+ DwarfGnuPubNamesSectionSym);
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_pubtypes, dwarf::DW_FORM_sec_offset,
- Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()));
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_GNU_pubtypes,
+ Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()));
else
- NewCU->addDelta(Die, dwarf::DW_AT_GNU_pubtypes, dwarf::DW_FORM_data4,
- Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()),
- DwarfGnuPubTypesSectionSym);
+ NewCU->addSectionDelta(
+ Die, dwarf::DW_AT_GNU_pubtypes,
+ Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()),
+ DwarfGnuPubTypesSectionSym);
}
// Flag if we've emitted any ranges and their location for the compile unit.
if (DebugRangeSymbols.size()) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_ranges_base,
- dwarf::DW_FORM_sec_offset, DwarfDebugRangeSectionSym);
+ NewCU->addSectionLabel(Die, dwarf::DW_AT_GNU_ranges_base,
+ DwarfDebugRangeSectionSym);
else
NewCU->addUInt(Die, dwarf::DW_AT_GNU_ranges_base, dwarf::DW_FORM_data4,
0);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-12 17:16:09 +0000