45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
// Copyright 2019 Robert Bosch GmbH
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#if defined(TRACETOOLS_LTTNG_ENABLED) && !defined(_WIN32)
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#include <dlfcn.h>
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#include <cxxabi.h>
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#endif
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#include "tracetools/utils.hpp"
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const char * get_symbol(void * funptr)
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{
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#define SYMBOL_UNKNOWN "UNKNOWN"
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#if defined(TRACETOOLS_LTTNG_ENABLED) && !defined(_WIN32)
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#define SYMBOL_LAMBDA "[lambda]"
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if (funptr == 0) {
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return SYMBOL_LAMBDA;
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}
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Dl_info info;
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if (dladdr(funptr, &info) == 0) {
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return SYMBOL_UNKNOWN;
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}
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char * demangled = nullptr;
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int status;
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demangled = abi::__cxa_demangle(info.dli_sname, NULL, 0, &status);
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// Use demangled symbol if possible
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const char * demangled_val = (status == 0 ? demangled : info.dli_sname);
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return demangled_val != 0 ? demangled_val : SYMBOL_UNKNOWN;
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#else
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(void)funptr;
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return SYMBOL_UNKNOWN;
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#endif
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}
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