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74 lines
2.0 KiB
74 lines
2.0 KiB
7 months ago
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//===- Demangle.cpp -------------------------------------------------------===//
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//
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// The MCLinker Project
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "mcld/Config/Config.h"
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#include "mcld/Support/CXADemangle.tcc"
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#include "mcld/Support/Demangle.h"
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#ifdef HAVE_CXXABI_H
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#include <cxxabi.h>
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#endif
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namespace mcld {
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std::string demangleName(const std::string& pName) {
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#ifdef HAVE_CXXABI_H
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// Spoil names of symbols with C linkage, so use an heuristic approach to
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// check if the name should be demangled.
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if (pName.substr(0, 2) != "_Z")
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return pName;
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// __cxa_demangle needs manually handle the memory release, so we wrap
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// it into this helper function.
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size_t output_leng;
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int status;
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char* buffer =
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abi::__cxa_demangle(pName.c_str(), /*buffer=*/0, &output_leng, &status);
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if (status != 0) { // Failed
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return pName;
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}
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std::string result(buffer);
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free(buffer);
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return result;
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#else
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return pName;
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#endif
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}
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bool isCtorOrDtor(const char* pName, size_t pLength) {
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arena<bs> a;
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Db db(a);
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db.cv = 0;
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db.ref = 0;
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db.encoding_depth = 0;
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db.parsed_ctor_dtor_cv = false;
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db.tag_templates = true;
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db.template_param.emplace_back(a);
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db.fix_forward_references = false;
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db.try_to_parse_template_args = true;
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int internal_status = success;
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demangle(pName, pName + pLength, db, internal_status);
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if (internal_status == success && db.fix_forward_references &&
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!db.template_param.empty() && !db.template_param.front().empty()) {
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db.fix_forward_references = false;
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db.tag_templates = false;
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db.names.clear();
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db.subs.clear();
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demangle(pName, pName + pLength, db, internal_status);
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if (db.fix_forward_references)
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internal_status = invalid_mangled_name;
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}
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if (internal_status != success) {
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db.parsed_ctor_dtor_cv = false;
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}
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return db.parsed_ctor_dtor_cv;
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}
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} // namespace mcld
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