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Use DW_AT_high_pc and DW_AT_low_pc for the high and low pc for a

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compile unit. Make these relocations on the platforms that need
relocations and add a routine to ensure that we don't put the
addresses in an offset table for split dwarf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199990 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2014-01-24 11:40:29 +00:00
parent 45cd8c8ac1
commit a268ba84d7
6 changed files with 46 additions and 17 deletions
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33
lib/CodeGen/AsmPrinter/DwarfUnit.cpp
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@ -266,21 +266,32 @@ void DwarfUnit::addSectionOffset(DIE *Die, dwarf::Attribute Attribute,
///
void DwarfCompileUnit::addLabelAddress(DIE *Die, dwarf::Attribute Attribute,
MCSymbol *Label) {
if (!DD->useSplitDwarf())
return addLocalLabelAddress(Die, Attribute, Label);
if (Label)
DD->addArangeLabel(SymbolCU(this, Label));
if (!DD->useSplitDwarf()) {
if (Label) {
DIEValue *Value = new (DIEValueAllocator) DIELabel(Label);
Die->addValue(Attribute, dwarf::DW_FORM_addr, Value);
} else {
DIEValue *Value = new (DIEValueAllocator) DIEInteger(0);
Die->addValue(Attribute, dwarf::DW_FORM_addr, Value);
}
unsigned idx = DU->getAddrPoolIndex(Label);
DIEValue *Value = new (DIEValueAllocator) DIEInteger(idx);
Die->addValue(Attribute, dwarf::DW_FORM_GNU_addr_index, Value);
}
/// addLocalLabelAddress - Add a dwarf label attribute data and value using
/// DW_FORM_addr only.
///
void DwarfCompileUnit::addLocalLabelAddress(DIE *Die,
dwarf::Attribute Attribute,
MCSymbol *Label) {
if (Label)
DD->addArangeLabel(SymbolCU(this, Label));
if (Label) {
DIEValue *Value = new (DIEValueAllocator) DIELabel(Label);
Die->addValue(Attribute, dwarf::DW_FORM_addr, Value);
} else {
unsigned idx = DU->getAddrPoolIndex(Label);
DIEValue *Value = new (DIEValueAllocator) DIEInteger(idx);
Die->addValue(Attribute, dwarf::DW_FORM_GNU_addr_index, Value);
DIEValue *Value = new (DIEValueAllocator) DIEInteger(0);
Die->addValue(Attribute, dwarf::DW_FORM_addr, Value);
}
}