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Make sure that debug labels are defined within the same section and after the

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entry point of a function.

llvm-svn: 27494
This commit is contained in:
Jim Laskey
2006-04-07 20:44:42 +00:00
parent 292574fbbc
commit c0d6518f27
5 changed files with 20 additions and 23 deletions
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13
llvm/lib/CodeGen/DwarfWriter.cpp
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@@ -1626,15 +1626,13 @@ void DwarfWriter::ConstructRootScope(DebugScope *RootScope) {
CompileUnitDesc *UnitDesc = static_cast<CompileUnitDesc *>(SPD->getContext());
CompileUnit *Unit = FindCompileUnit(UnitDesc);
// Generate the mangled name.
std::string MangledName = Asm->Mang->getValueName(MF->getFunction());
// Get the subprogram die.
DIE *SPDie = Unit->getDieMapSlotFor(SPD);
assert(SPDie && "Missing subprogram descriptor");
// Add the function bounds.
SPDie->AddObjectLabel(DW_AT_low_pc, DW_FORM_addr, MangledName);
SPDie->AddLabel(DW_AT_low_pc, DW_FORM_addr,
DWLabel("func_begin", SubprogramCount));
SPDie->AddLabel(DW_AT_high_pc, DW_FORM_addr,
DWLabel("func_end", SubprogramCount));
MachineLocation Location(RI->getFrameRegister(*MF));
@@ -2408,8 +2406,8 @@ void DwarfWriter::EndModule() {
EmitDebugMacInfo();
}
/// BeginFunction - Gather pre-function debug information.
///
/// BeginFunction - Gather pre-function debug information. Assumes being
/// emitted immediately after the function entry point.
void DwarfWriter::BeginFunction(MachineFunction *MF) {
this->MF = MF;
@@ -2419,8 +2417,7 @@ void DwarfWriter::BeginFunction(MachineFunction *MF) {
if (!ShouldEmitDwarf()) return;
EOL("Dwarf Begin Function");
// Define begin label for subprogram.
Asm->SwitchSection(TextSection, 0);
// Assumes in correct section after the entry point.
EmitLabel("func_begin", ++SubprogramCount);
}