gdb can't call function

Question

I have some problems with debugging my app - when I try to call parser::extractString(...) from gdb shell it return

No symbol \"extractString\" in namesp

Answer 1

gdb does not yet support C++11 ABI tags introduced in gcc 5. See these bugs:

• https://sourceware.org/bugzilla/show_bug.cgi?id=19436
• https://sourceware.org/bugzilla/show_bug.cgi?id=18601

The simplest workaround for you is probably to disable new gcc ABI by defining the macro _GLIBCXX_USE_CXX11_ABI to 0, see https://gcc.gnu.org/gcc-5/changes.html#libstdcxx.

Or alternatively you can try to apply workarounds from https://sourceware.org/bugzilla/show_bug.cgi?id=18601#c1 though they look a bit weird.