[Bug libstdc++/112263] New: [C++23] std::stacktrace does not identify symbols in shared library

[vincenzo.innocente at cern dot ch via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112263

            Bug ID: 112263
           Summary: [C++23] std::stacktrace does not identify symbols in
                    shared library
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vincenzo.innocente at cern dot ch
  Target Milestone: ---

using 
gcc version 14.0.0 20231028 (experimental) [master r14-4988-g5d2a360f0a5] (GCC)
that contains the fix for #111936

This simple example  [1]
when run as a single executable prints all symbols in the stacktrace
when the nested functions are in a shared library their names are missing
c++ -std=c++23 testStacktrace.cpp -lstdc++exp -g -DINMAIN -DINLIB ; ./a.out
   0# nested_func2(int) at
/afs/cern.ch/user/i/innocent/public/ctest/testStacktrace.cpp:13
   1# nested_func(int) at
/afs/cern.ch/user/i/innocent/public/ctest/testStacktrace.cpp:18
   2# func(int) at
/afs/cern.ch/user/i/innocent/public/ctest/testStacktrace.cpp:26
   3# main at /afs/cern.ch/user/i/innocent/public/ctest/testStacktrace.cpp:31
   4#      at :0
   5# _start at :0
   6#


c++ -std=c++23 testStacktrace.cpp -lstdc++exp -g -DINLIB -fpic -shared -o
liba.so ; c++ -std=c++23 testStacktrace.cpp -lstdc++exp -g -DINMAIN -L. -la
-Wl,-rpath=. ; ./a.out
   0#      at :0
   1#      at :0
   2# func(int) at
/afs/cern.ch/user/i/innocent/public/ctest/testStacktrace.cpp:26
   3# main at /afs/cern.ch/user/i/innocent/public/ctest/testStacktrace.cpp:31
   4#      at :0
   5# _start at :0
   6#



[1]
cat testStacktrace.cpp
//compile and run with either
// c++ -std=c++23 testStacktrace.cpp -lstdc++exp -g -DINMAIN -DINLIB; ./a.out
// or
// c++ -std=c++23 testStacktrace.cpp -lstdc++exp -g -DINLIB -fpic -shared -o
liba.so;c++ -std=c++23 testStacktrace.cpp -lstdc++exp -g -DINMAIN -L. -la
-Wl,-rpath=.; ./a.out
//
#include <iostream>
#include <stacktrace>


#ifdef INLIB
int nested_func2(int c)
{
    std::cout << std::stacktrace::current() << '\n';
    return c + 1;
}
int nested_func(int c)
{
    return nested_func2(c + 1);
}
#else
int nested_func(int c);
#endif
#ifdef INMAIN
int func(int b)
{
    return nested_func(b + 1);
}

int main()
{
    std::cout << func(777);
   return 0;
}
#endif