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Construct global variable DIEs using DebugInfo.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61771 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-01-05 23:11:11 +00:00
parent d1ca925093
commit c452324f60
1 changed files with 48 additions and 1 deletions
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49
lib/CodeGen/AsmPrinter/DwarfWriter.cpp
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@ -3116,7 +3116,7 @@ private:
Asm->EOL();
}
/// ConstructCompileUnitDIEs - Create a compile unit DIEs.
/// ConstructCompileUnits - Create a compile unit DIEs.
void ConstructCompileUnits() {
std::string CUName = "llvm.dbg.compile_units";
std::vector<GlobalVariable*> Result;
@ -3155,6 +3155,53 @@ private:
}
}
/// ConstructGlobalVariableDIEs - Create DIEs for each of the externally
/// visible global variables.
void ConstructGlobalVariableDIEs() {
std::string GVName = "llvm.dbg.global_variables";
std::vector<GlobalVariable*> Result;
getGlobalVariablesUsing(*M, GVName, Result);
for (std::vector<GlobalVariable *>::iterator GVI = Result.begin(),
GVE = Result.end(); GVI != GVE; ++GVI) {
DIGlobalVariable *DI_GV = new DIGlobalVariable(*GVI);
CompileUnit *DW_Unit = FindCompileUnit(DI_GV->getCompileUnit());
// Check for pre-existence.
DIE *&Slot = DW_Unit->getDieMapSlotFor(DI_GV->getGV());
if (Slot) continue;
DIE *VariableDie = new DIE(DW_TAG_variable);
AddString(VariableDie, DW_AT_name, DW_FORM_string, DI_GV->getName());
const std::string &LinkageName = DI_GV->getLinkageName();
if (!LinkageName.empty())
AddString(VariableDie, DW_AT_MIPS_linkage_name, DW_FORM_string,
LinkageName);
AddType(DW_Unit, VariableDie, DI_GV->getType());
if (!DI_GV->isLocalToUnit())
AddUInt(VariableDie, DW_AT_external, DW_FORM_flag, 1);
// Add source line info, if available.
AddSourceLine(VariableDie, DI_GV);
// Add address.
DIEBlock *Block = new DIEBlock();
AddUInt(Block, 0, DW_FORM_data1, DW_OP_addr);
AddObjectLabel(Block, 0, DW_FORM_udata,
Asm->getGlobalLinkName(DI_GV->getGV()));
AddBlock(VariableDie, DW_AT_location, 0, Block);
//Add to map.
Slot = VariableDie;
//Add to context owner.
DW_Unit->getDie()->AddChild(VariableDie);
//Expose as global. FIXME - need to check external flag.
DW_Unit->AddGlobal(DI_GV->getName(), VariableDie);
}
}
/// ConstructGlobalDIEs - Create DIEs for each of the externally visible
/// global variables.
void ConstructGlobalDIEs() {