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If a specification DIE has a DW_AT_MIPS_linkage_name attribute, don't fail

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to add it to the specifications table. Record the fully-qualified name
provided by the demangler in the table.

A=Rafael Ávila de Espíndola <respindola@mozilla.com> R=jimb at https://breakpad.appspot.
com/478004/


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1062 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
jimblandy
2012-10-05 21:47:55 +00:00
parent 872d464500
commit 4fcccf68cb
2 changed files with 87 additions and 40 deletions
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59
src/common/dwarf_cu_to_module.cc
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@@ -74,6 +74,9 @@ using std::vector;
// A Specification holds information gathered from a declaration DIE that
// we may need if we find a DW_AT_specification link pointing to it.
struct DwarfCUToModule::Specification {
// The qualified name that can be found by demangling DW_AT_MIPS_linkage_name.
string qualified_name;
// The name of the enclosing scope, or the empty string if there is none.
string enclosing_name;
@@ -314,38 +317,54 @@ void DwarfCUToModule::GenericDIEHandler::ProcessAttributeString(
}
string DwarfCUToModule::GenericDIEHandler::ComputeQualifiedName() {
// Use DW_AT_MIPS_linkage_name if it is available. It is already qualified,
// so there is no need to add enclosing_name.
if (!demangled_name_.empty())
return demangled_name_;
// Use the demangled name, if one is available. Demangled names are
// preferable to those inferred from the DWARF structure because they
// include argument types.
const string *qualified_name = NULL;
if (!demangled_name_.empty()) {
// Found it is this DIE.
qualified_name = &demangled_name_;
} else if (specification_ && !specification_->qualified_name.empty()) {
// Found it on the specification.
qualified_name = &specification_->qualified_name;
}
// Find our unqualified name. If the DIE has its own DW_AT_name
// attribute, then use that; otherwise, check our specification.
const string *unqualified_name;
if (name_attribute_.empty() && specification_)
unqualified_name = &specification_->unqualified_name;
else
unqualified_name = &name_attribute_;
// Find the name of our enclosing context. If we have a
// specification, it's the specification's enclosing context that
// counts; otherwise, use this DIE's context.
const string *enclosing_name;
if (specification_)
enclosing_name = &specification_->enclosing_name;
else
enclosing_name = &parent_context_->name;
if (!qualified_name) {
// Find our unqualified name. If the DIE has its own DW_AT_name
// attribute, then use that; otherwise, check our specification.
if (name_attribute_.empty() && specification_)
unqualified_name = &specification_->unqualified_name;
else
unqualified_name = &name_attribute_;
// Find the name of our enclosing context. If we have a
// specification, it's the specification's enclosing context that
// counts; otherwise, use this DIE's context.
if (specification_)
enclosing_name = &specification_->enclosing_name;
else
enclosing_name = &parent_context_->name;
}
// If this DIE was marked as a declaration, record its names in the
// specification table.
if (declaration_) {
FileContext *file_context = cu_context_->file_context;
Specification spec;
spec.enclosing_name = *enclosing_name;
spec.unqualified_name = *unqualified_name;
if (qualified_name)
spec.qualified_name = *qualified_name;
else {
spec.enclosing_name = *enclosing_name;
spec.unqualified_name = *unqualified_name;
}
file_context->file_private->specifications[offset_] = spec;
}
if (qualified_name)
return *qualified_name;
// Combine the enclosing name and unqualified name to produce our
// own fully-qualified name.
return cu_context_->language->MakeQualifiedName(*enclosing_name,