RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-22 18:54:02 +01:00
Code Issues Projects Releases Wiki Activity

[DWARF5] Start emitting DW_AT_dwo_name when -gdwarf-5 is specified.

Browse Source
This commit is contained in:
Sourabh Singh Tomar 2019-11-29 11:26:00 +05:30
parent 36b96dd940
commit 5eb810ab72
4 changed files with 16 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -856,10 +856,13 @@ void DwarfDebug::finishUnitAttributes(const DICompileUnit *DIUnit,
// This CU is either a clang module DWO or a skeleton CU.
NewCU.addUInt(Die, dwarf::DW_AT_GNU_dwo_id, dwarf::DW_FORM_data8,
DIUnit->getDWOId());
if (!DIUnit->getSplitDebugFilename().empty())
if (!DIUnit->getSplitDebugFilename().empty()) {
// This is a prefabricated skeleton CU.
NewCU.addString(Die, dwarf::DW_AT_GNU_dwo_name,
DIUnit->getSplitDebugFilename());
dwarf::Attribute attrDWOName = getDwarfVersion() >= 5
? dwarf::DW_AT_dwo_name
: dwarf::DW_AT_GNU_dwo_name;
NewCU.addString(Die, attrDWOName, DIUnit->getSplitDebugFilename());
}
}
}
// Create new DwarfCompileUnit for the given metadata node with tag
@ -1101,10 +1104,13 @@ void DwarfDebug::finalizeModuleInfo() {
bool HasSplitUnit = SkCU && !TheCU.getUnitDie().children().empty();
if (HasSplitUnit) {
dwarf::Attribute attrDWOName = getDwarfVersion() >= 5
? dwarf::DW_AT_dwo_name
: dwarf::DW_AT_GNU_dwo_name;
finishUnitAttributes(TheCU.getCUNode(), TheCU);
TheCU.addString(TheCU.getUnitDie(), dwarf::DW_AT_GNU_dwo_name,
TheCU.addString(TheCU.getUnitDie(), attrDWOName,
Asm->TM.Options.MCOptions.SplitDwarfFile);
SkCU->addString(SkCU->getUnitDie(), dwarf::DW_AT_GNU_dwo_name,
SkCU->addString(SkCU->getUnitDie(), attrDWOName,
Asm->TM.Options.MCOptions.SplitDwarfFile);
// Emit a unique identifier for this CU.
uint64_t ID =

4
lib/DebugInfo/DWARF/DWARFUnit.cpp
View File

@ -554,7 +554,9 @@ bool DWARFUnit::parseDWO() {
DWARFDie UnitDie = getUnitDIE();
if (!UnitDie)
return false;
auto DWOFileName = dwarf::toString(UnitDie.find(DW_AT_GNU_dwo_name));
auto DWOFileName = getVersion() >= 5
? dwarf::toString(UnitDie.find(DW_AT_dwo_name))
: dwarf::toString(UnitDie.find(DW_AT_GNU_dwo_name));
if (!DWOFileName)
return false;
auto CompilationDir = dwarf::toString(UnitDie.find(DW_AT_comp_dir));

2
test/DebugInfo/X86/debug_addr.ll
View File

@ -30,7 +30,7 @@
; DWARF5-NOT: Compile Unit
; DWARF5: DW_TAG_skeleton_unit
; DWARF5-NOT: DW_TAG_{{.*}}
; DWARF5: DW_AT_GNU_dwo_name{{.*}}test.dwo
; DWARF5: DW_AT_dwo_name{{.*}}test.dwo
; DWARF5: DW_AT_addr_base{{.*}}0x00000008
; DWARF5: DW_AT_low_pc [DW_FORM_addrx] (indexed (00000000) address = 0x0000000000000000 ".text")
; DWARF5: .debug_addr contents:

2
test/DebugInfo/X86/string-offsets-table.ll
View File

@ -60,7 +60,7 @@
; SPLIT-NOT: {{DW_TAG|contents:}}
; SPLIT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008)
; SPLIT: DW_AT_comp_dir [DW_FORM_strx1] (indexed (00000000) string = "/home/test")
; SPLIT: DW_AT_GNU_dwo_name [DW_FORM_strx1] (indexed (00000001) string = "foo.dwo")
; SPLIT: DW_AT_dwo_name [DW_FORM_strx1] (indexed (00000001) string = "foo.dwo")
; Check for the split CU in .debug_info.dwo.
; SPLIT: .debug_info.dwo contents: