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1. Support standard dwarf format (was bootstrapping in Apple format.)

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2. Add vector support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28807 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey 2006-06-15 20:51:43 +00:00
parent d5a932b92a
commit f8a01a9661
7 changed files with 52 additions and 20 deletions
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7
docs/SourceLevelDebugging.html
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@ -575,6 +575,7 @@ NULL derived type.</p>
uint, ;; Size in bits
uint, ;; Alignment in bits
uint, ;; Offset in bits
bool, ;; Is vector flag
{ }* ;; Reference to array of member descriptors
}
</pre>
@ -590,6 +591,8 @@ are possible tag values;</p>
DW_TAG_union_type = 23
</pre>
<p>The vector flag indicates that an array type is a native packed vector.</p>
<p>The members of array types (tag = <tt>DW_TAG_array_type</tt>) are <a
href="#format_subrange">subrange descriptors</a>, each representing the range of
subscripts at that level of indexing.</p>
@ -1600,7 +1603,8 @@ struct Color {
uint 96,
uint 32,
uint 0,
{ }* null,
{ }* null,
bool false,
{ }* cast ([3 x { }*]* %llvm.dbg.array to { }*) }, section "llvm.metadata"
%str2 = internal constant [6 x sbyte] c"Color\00", section "llvm.metadata"
@ -1693,6 +1697,7 @@ enum Trees {
uint 32,
uint 0,
{ }* null,
bool false,
{ }* cast ([3 x { }*]* %llvm.dbg.array to { }*) }, section "llvm.metadata"
%str1 = internal constant [6 x sbyte] c"Trees\00", section "llvm.metadata"

5
include/llvm/CodeGen/MachineDebugInfo.h
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@ -57,7 +57,7 @@ class StructType;
// Debug info constants.
enum {
LLVMDebugVersion = 3 // Current version of debug information.
LLVMDebugVersion = 4 // Current version of debug information.
};
//===----------------------------------------------------------------------===//
@ -400,13 +400,16 @@ public:
/// array/struct types (eg., arrays, struct, union, enums.)
class CompositeTypeDesc : public DerivedTypeDesc {
private:
bool IsVector; // packed/vector array
std::vector<DebugInfoDesc *> Elements;// Information used to compose type.
public:
CompositeTypeDesc(unsigned T);
// Accessors
bool isVector() const { return IsVector; }
std::vector<DebugInfoDesc *> &getElements() { return Elements; }
void setIsVector() { IsVector = true; }
// Implement isa/cast/dyncast.
static bool classof(const CompositeTypeDesc *) { return true; }

13
include/llvm/Support/Dwarf.h
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@ -37,10 +37,10 @@ enum llvm_dwarf_constants {
DW_TAG_arg_variable = 0x101, // Tag for argument variables.
DW_TAG_return_variable = 0x102, // Tag for return variables.
DW_TAG_user_base = 0x1000, // Recommended base for user tags.
DW_TAG_user_base = 0x1000, // Recommended base for user tags.
DW_CIE_VERSION = 1, // Common frame information version.
DW_CIE_ID = 0xffffffff // Common frame information mark.
DW_CIE_VERSION = 1, // Common frame information version.
DW_CIE_ID = 0xffffffff // Common frame information mark.
};
enum dwarf_constants {
@ -198,6 +198,13 @@ enum dwarf_constants {
DW_AT_elemental = 0x66,
DW_AT_pure = 0x67,
DW_AT_recursive = 0x68,
DW_AT_sf_names = 0x2101,
DW_AT_src_info = 0x2102,
DW_AT_mac_info = 0x2103,
DW_AT_src_coords = 0x2104,
DW_AT_body_begin = 0x2105,
DW_AT_body_end = 0x2106,
DW_AT_GNU_vector = 0x2107,
DW_AT_lo_user = 0x2000,
DW_AT_hi_user = 0x3fff,

16
lib/CodeGen/DwarfWriter.cpp
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@ -1265,7 +1265,7 @@ DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc, CompileUnit *Unit) {
// Fundamental types like int, float, bool
Slot = Ty = new DIE(DW_TAG_base_type);
unsigned Encoding = BasicTy->getEncoding();
Ty->AddUInt (DW_AT_encoding, DW_FORM_data1, Encoding);
Ty->AddUInt(DW_AT_encoding, DW_FORM_data1, Encoding);
} else if (DerivedTypeDesc *DerivedTy = dyn_cast<DerivedTypeDesc>(TyDesc)) {
// Create specific DIE.
Slot = Ty = new DIE(DerivedTy->getTag());
@ -1287,6 +1287,12 @@ DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc, CompileUnit *Unit) {
Ty->AddDIEntry(DW_AT_type, DW_FORM_ref4,
NewType(Context, FromTy, Unit));
}
// check for vector type
if (CompTy->isVector()) {
Ty->AddUInt(DW_AT_GNU_vector, DW_FORM_flag, 1);
}
// Don't emit size attribute.
Size = 0;
@ -1419,7 +1425,8 @@ CompileUnit *DwarfWriter::NewCompileUnit(CompileUnitDesc *UnitDesc,
unsigned ID) {
// Construct debug information entry.
DIE *Die = new DIE(DW_TAG_compile_unit);
Die->AddLabel (DW_AT_stmt_list, DW_FORM_data4, DWLabel("line", 0));
Die->AddDelta (DW_AT_stmt_list, DW_FORM_data4, DWLabel("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());
@ -1842,7 +1849,7 @@ void DwarfWriter::EmitFrameMoves(const char *BaseLabel, unsigned BaseLabelID,
int stackGrowth =
Asm->TM.getFrameInfo()->getStackGrowthDirection() ==
TargetFrameInfo::StackGrowsUp ?
AddressSize : -AddressSize;
AddressSize : -AddressSize;
EmitULEB128Bytes(Src.getOffset() / stackGrowth);
EOL("Offset");
@ -1875,7 +1882,8 @@ void DwarfWriter::EmitDebugInfo() const {
EmitInt32(ContentSize); EOL("Length of Compilation Unit Info");
EmitInt16(DWARF_VERSION); EOL("DWARF version number");
EmitReference("abbrev_begin", 0); EOL("Offset Into Abbrev. Section");
EmitDifference("abbrev_begin", 0, "section_abbrev", 0);
EOL("Offset Into Abbrev. Section");
EmitInt8(AddressSize); EOL("Address Size (in bytes)");
EmitDIE(Die);

2
lib/CodeGen/MachineDebugInfo.cpp
View File

@ -817,6 +817,7 @@ void DerivedTypeDesc::dump() {
CompositeTypeDesc::CompositeTypeDesc(unsigned T)
: DerivedTypeDesc(T)
, IsVector(false)
, Elements()
{}
@ -839,6 +840,7 @@ bool CompositeTypeDesc::classof(const DebugInfoDesc *D) {
void CompositeTypeDesc::ApplyToFields(DIVisitor *Visitor) {
DerivedTypeDesc::ApplyToFields(Visitor);
Visitor->Apply(IsVector);
Visitor->Apply(Elements);
}

7
lib/Support/Dwarf.cpp
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@ -188,6 +188,13 @@ const char *AttributeString(unsigned Attribute) {
case DW_AT_elemental: return "AT_elemental";
case DW_AT_pure: return "AT_pure";
case DW_AT_recursive: return "AT_recursive";
case DW_AT_sf_names: return "AT_sf_names";
case DW_AT_src_info: return "AT_src_info";
case DW_AT_mac_info: return "AT_mac_info";
case DW_AT_src_coords: return "AT_src_coords";
case DW_AT_body_begin: return "AT_body_begin";
case DW_AT_body_end: return "AT_body_end";
case DW_AT_GNU_vector: return "AT_GNU_vector";
case DW_AT_lo_user: return "AT_lo_user";
case DW_AT_hi_user: return "AT_hi_user";
}

22
lib/Target/PowerPC/PPCAsmPrinter.cpp
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@ -246,17 +246,17 @@ namespace {
: DwarfWriter(o, ap)
{
needsSet = true;
DwarfAbbrevSection = ".section __DWARFA,__debug_abbrev";
DwarfInfoSection = ".section __DWARFA,__debug_info";
DwarfLineSection = ".section __DWARFA,__debug_line";
DwarfFrameSection = ".section __DWARFA,__debug_frame";
DwarfPubNamesSection = ".section __DWARFA,__debug_pubnames";
DwarfPubTypesSection = ".section __DWARFA,__debug_pubtypes";
DwarfStrSection = ".section __DWARFA,__debug_str";
DwarfLocSection = ".section __DWARFA,__debug_loc";
DwarfARangesSection = ".section __DWARFA,__debug_aranges";
DwarfRangesSection = ".section __DWARFA,__debug_ranges";
DwarfMacInfoSection = ".section __DWARFA,__debug_macinfo";
DwarfAbbrevSection = ".section __DWARF,__debug_abbrev";
DwarfInfoSection = ".section __DWARF,__debug_info";
DwarfLineSection = ".section __DWARF,__debug_line";
DwarfFrameSection = ".section __DWARF,__debug_frame";
DwarfPubNamesSection = ".section __DWARF,__debug_pubnames";
DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes";
DwarfStrSection = ".section __DWARF,__debug_str";
DwarfLocSection = ".section __DWARF,__debug_loc";
DwarfARangesSection = ".section __DWARF,__debug_aranges";
DwarfRangesSection = ".section __DWARF,__debug_ranges";
DwarfMacInfoSection = ".section __DWARF,__debug_macinfo";
TextSection = ".text";
DataSection = ".data";
}