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Added minimum Dwarf aranges. Cleaned up some section headers. Line number

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support now works in gdb.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25417 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey
2006-01-18 16:54:26 +00:00
parent 99fa0a102a
commit e719a7c40b
3 changed files with 65 additions and 25 deletions
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12
include/llvm/CodeGen/DwarfWriter.h
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@ -855,12 +855,12 @@ public:
} }
void EmitLabel(const char *Tag, unsigned Number) const; void EmitLabel(const char *Tag, unsigned Number) const;
/// EmitLabelReference - Emit a reference to a label. /// EmitReference - Emit a reference to a label.
/// ///
void EmitLabelReference(DWLabel Label) const { void EmitReference(DWLabel Label) const {
EmitLabelReference(Label.Tag, Label.Number); EmitReference(Label.Tag, Label.Number);
} }
void EmitLabelReference(const char *Tag, unsigned Number) const; void EmitReference(const char *Tag, unsigned Number) const;
/// EmitDifference - Emit the difference between two labels. Some /// EmitDifference - Emit the difference between two labels. Some
/// assemblers do not behave with absolute expressions with data directives, /// assemblers do not behave with absolute expressions with data directives,
@ -967,11 +967,11 @@ private:
/// ///
void EndModule(); void EndModule();
/// BeginFunction - Emit pre-function debug information. /// BeginFunction - Gather pre-function debug information.
/// ///
void BeginFunction(); void BeginFunction();
/// EndFunction - Emit post-function debug information. /// EndFunction - Gather and emit post-function debug information.
/// ///
void EndFunction(); void EndFunction();
}; };

54
lib/CodeGen/DwarfWriter.cpp
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@ -701,7 +701,7 @@ unsigned DIEString::SizeOf(const DwarfWriter &DW, unsigned Form) const {
/// EmitValue - Emit label value. /// EmitValue - Emit label value.
/// ///
void DIELabel::EmitValue(const DwarfWriter &DW, unsigned Form) const { void DIELabel::EmitValue(const DwarfWriter &DW, unsigned Form) const {
DW.EmitLabelReference(Value); DW.EmitReference(Value);
} }
/// SizeOf - Determine size of label value in bytes. /// SizeOf - Determine size of label value in bytes.
@ -893,9 +893,9 @@ void DwarfWriter::EmitLabel(const char *Tag, unsigned Number) const {
O << ":\n"; O << ":\n";
} }
/// EmitLabelReference - Emit a reference to a label. /// EmitReference - Emit a reference to a label.
/// ///
void DwarfWriter::EmitLabelReference(const char *Tag, unsigned Number) const { void DwarfWriter::EmitReference(const char *Tag, unsigned Number) const {
if (AddressSize == 4) if (AddressSize == 4)
O << Asm->Data32bitsDirective; O << Asm->Data32bitsDirective;
else else
@ -1113,7 +1113,7 @@ void DwarfWriter::EmitDebugInfo() const {
EmitShort(DWARF_VERSION); EOL("DWARF version number"); EmitShort(DWARF_VERSION); EOL("DWARF version number");
EmitLabelReference("abbrev", 0); EOL("Offset Into Abbrev. Section"); EmitReference("abbrev", 0); EOL("Offset Into Abbrev. Section");
EmitByte(AddressSize); EOL("Address Size (in bytes)"); EmitByte(AddressSize); EOL("Address Size (in bytes)");
@ -1252,7 +1252,7 @@ void DwarfWriter::EmitDebugLines() const {
EmitByte(0); EOL("Extended Op"); EmitByte(0); EOL("Extended Op");
EmitByte(4 + 1); EOL("Op size"); EmitByte(4 + 1); EOL("Op size");
EmitByte(DW_LNE_set_address); EOL("DW_LNE_set_address"); EmitByte(DW_LNE_set_address); EOL("DW_LNE_set_address");
EmitLabelReference("loc", i + 1); EOL("Location label"); EmitReference("loc", i + 1); EOL("Location label");
// If change of source, then switch to the new source. // If change of source, then switch to the new source.
if (Source != LineInfo->getSourceID()) { if (Source != LineInfo->getSourceID()) {
@ -1297,41 +1297,79 @@ void DwarfWriter::EmitDebugLines() const {
/// EmitDebugFrame - Emit visible names into a debug frame section. /// EmitDebugFrame - Emit visible names into a debug frame section.
/// ///
void DwarfWriter::EmitDebugFrame() { void DwarfWriter::EmitDebugFrame() {
// FIXME - Should be per frame
} }
/// EmitDebugPubNames - Emit visible names into a debug pubnames section. /// EmitDebugPubNames - Emit visible names into a debug pubnames section.
/// ///
void DwarfWriter::EmitDebugPubNames() { void DwarfWriter::EmitDebugPubNames() {
// Start the dwarf pubnames section.
Asm->SwitchSection(DwarfPubNamesSection, 0);
} }
/// EmitDebugPubTypes - Emit visible names into a debug pubtypes section. /// EmitDebugPubTypes - Emit visible names into a debug pubtypes section.
/// ///
void DwarfWriter::EmitDebugPubTypes() { void DwarfWriter::EmitDebugPubTypes() {
// Start the dwarf pubtypes section.
Asm->SwitchSection(DwarfPubTypesSection, 0);
} }
/// EmitDebugStr - Emit visible names into a debug str section. /// EmitDebugStr - Emit visible names into a debug str section.
/// ///
void DwarfWriter::EmitDebugStr() { void DwarfWriter::EmitDebugStr() {
// Start the dwarf str section.
Asm->SwitchSection(DwarfStrSection, 0);
} }
/// EmitDebugLoc - Emit visible names into a debug loc section. /// EmitDebugLoc - Emit visible names into a debug loc section.
/// ///
void DwarfWriter::EmitDebugLoc() { void DwarfWriter::EmitDebugLoc() {
// Start the dwarf loc section.
Asm->SwitchSection(DwarfLocSection, 0);
} }
/// EmitDebugARanges - Emit visible names into a debug aranges section. /// EmitDebugARanges - Emit visible names into a debug aranges section.
/// ///
void DwarfWriter::EmitDebugARanges() { void DwarfWriter::EmitDebugARanges() {
// Start the dwarf aranges section.
Asm->SwitchSection(DwarfARangesSection, 0);
// FIXME - Mock up
// Don't include size of length
EmitLong(0x1c); EOL("Length of Address Ranges Info");
EmitShort(DWARF_VERSION); EOL("Dwarf Version");
EmitReference("info", 0); EOL("Offset of Compilation Unit Info");
EmitByte(AddressSize); EOL("Size of Address");
EmitByte(0); EOL("Size of Segment Descriptor");
EmitShort(0); EOL("Pad (1)");
EmitShort(0); EOL("Pad (2)");
// Range 1
EmitReference("text_begin", 0); EOL("Address");
EmitDifference("text_end", 0, "text_begin", 0); EOL("Length");
EmitLong(0); EOL("EOM (1)");
EmitLong(0); EOL("EOM (2)");
} }
/// EmitDebugRanges - Emit visible names into a debug ranges section. /// EmitDebugRanges - Emit visible names into a debug ranges section.
/// ///
void DwarfWriter::EmitDebugRanges() { void DwarfWriter::EmitDebugRanges() {
// Start the dwarf ranges section.
Asm->SwitchSection(DwarfRangesSection, 0);
} }
/// EmitDebugMacInfo - Emit visible names into a debug macinfo section. /// EmitDebugMacInfo - Emit visible names into a debug macinfo section.
/// ///
void DwarfWriter::EmitDebugMacInfo() { void DwarfWriter::EmitDebugMacInfo() {
// Start the dwarf macinfo section.
Asm->SwitchSection(DwarfMacInfoSection, 0);
} }
/// ShouldEmitDwarf - Determine if Dwarf declarations should be made. /// ShouldEmitDwarf - Determine if Dwarf declarations should be made.
@ -1397,7 +1435,9 @@ void DwarfWriter::EndModule() {
EOL("Dwarf End Module"); EOL("Dwarf End Module");
// Standard sections final addresses. // Standard sections final addresses.
Asm->SwitchSection(TextSection, 0);
EmitLabel("text_end", 0); EmitLabel("text_end", 0);
Asm->SwitchSection(DataSection, 0);
EmitLabel("data_end", 0); EmitLabel("data_end", 0);
// Get directory and source information. // Get directory and source information.
@ -1451,14 +1491,14 @@ void DwarfWriter::EndModule() {
EmitDebugMacInfo(); EmitDebugMacInfo();
} }
/// BeginFunction - Emit pre-function debug information. /// BeginFunction - Gather pre-function debug information.
/// ///
void DwarfWriter::BeginFunction() { void DwarfWriter::BeginFunction() {
if (!ShouldEmitDwarf()) return; if (!ShouldEmitDwarf()) return;
EOL("Dwarf Begin Function"); EOL("Dwarf Begin Function");
} }
/// EndFunction - Emit post-function debug information. /// EndFunction - Gather and emit post-function debug information.
/// ///
void DwarfWriter::EndFunction() { void DwarfWriter::EndFunction() {
if (!ShouldEmitDwarf()) return; if (!ShouldEmitDwarf()) return;

24
lib/Target/PowerPC/PPCAsmPrinter.cpp
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@ -215,17 +215,18 @@ namespace {
: DwarfWriter(o, ap) : DwarfWriter(o, ap)
{ {
needsSet = true; needsSet = true;
DwarfAbbrevSection = ".section __DWARFA,__debug_abbrev,regular,debug"; DwarfAbbrevSection = ".section __DWARFA,__debug_abbrev";
DwarfInfoSection = ".section __DWARFA,__debug_info,regular,debug"; DwarfInfoSection = ".section __DWARFA,__debug_info";
DwarfLineSection = ".section __DWARFA,__debug_line,regular,debug"; DwarfLineSection = ".section __DWARFA,__debug_line";
DwarfFrameSection = ".section __DWARFA,__debug_frame,regular,debug"; DwarfFrameSection =
DwarfPubNamesSection = ".section __DWARFA,__debug_pubnames,regular,debug"; ".section __DWARFA,__debug_frame,,coalesced,no_toc+strip_static_syms";
DwarfPubTypesSection = ".section __DWARFA,__debug_pubtypes,regular,debug"; DwarfPubNamesSection = ".section __DWARFA,__debug_pubnames";
DwarfStrSection = ".section __DWARFA,__debug_str,regular,debug"; DwarfPubTypesSection = ".section __DWARFA,__debug_pubtypes";
DwarfLocSection = ".section __DWARFA,__debug_loc,regular,debug"; DwarfStrSection = ".section __DWARFA,__debug_str";
DwarfARangesSection = ".section __DWARFA,__debug_aranges,regular,debug"; DwarfLocSection = ".section __DWARFA,__debug_loc";
DwarfRangesSection = ".section __DWARFA,__debug_ranges,regular,debug"; DwarfARangesSection = ".section __DWARFA,__debug_aranges";
DwarfMacInfoSection = ".section __DWARFA,__debug_macinfo,regular,debug"; DwarfRangesSection = ".section __DWARFA,__debug_ranges";
DwarfMacInfoSection = ".section __DWARFA,__debug_macinfo";
TextSection = ".text"; TextSection = ".text";
DataSection = ".data"; DataSection = ".data";
} }
@ -233,7 +234,6 @@ namespace {
/// DarwinAsmPrinter - PowerPC assembly printer, customized for Darwin/Mac OS /// DarwinAsmPrinter - PowerPC assembly printer, customized for Darwin/Mac OS
/// X /// X
///
struct DarwinAsmPrinter : public PPCAsmPrinter { struct DarwinAsmPrinter : public PPCAsmPrinter {
DarwinDwarfWriter DW; DarwinDwarfWriter DW;