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[DWARF parser] Teach DIContext to fetch short (non-linkage) function names for a given address.

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Change --functions option in llvm-symbolizer tool to accept
values "none", "short" or "linkage". Update the tests and docs
accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209050 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alexey Samsonov
2014-05-17 00:07:48 +00:00
parent 2d1fa5f718
commit bf6e3f9257
7 changed files with 40 additions and 24 deletions
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16
lib/DebugInfo/DWARFDebugInfoEntry.cpp
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@ -277,13 +277,15 @@ DWARFDebugInfoEntryMinimal::getSubroutineName(const DWARFUnit *U,
FunctionNameKind Kind) const {
if (!isSubroutineDIE() || Kind == FunctionNameKind::None)
return nullptr;
// Try to get mangled name if possible.
if (const char *name =
getAttributeValueAsString(U, DW_AT_MIPS_linkage_name, nullptr))
return name;
if (const char *name = getAttributeValueAsString(U, DW_AT_linkage_name,
nullptr))
return name;
// Try to get mangled name only if it was asked for.
if (Kind == FunctionNameKind::LinkageName) {
if (const char *name =
getAttributeValueAsString(U, DW_AT_MIPS_linkage_name, nullptr))
return name;
if (const char *name =
getAttributeValueAsString(U, DW_AT_linkage_name, nullptr))
return name;
}
if (const char *name = getAttributeValueAsString(U, DW_AT_name, nullptr))
return name;
// Try to get name from specification DIE.