👀 Views: 100 💬 Answers: 1 📅 Created: 2025-06-08

gdb cmake ubuntu CMake

I recently switched to Quick question that's been bugging me - I'm stuck on something that should probably be simple. I'm currently working with an scenario with GDB not being able to resolve symbols for a shared library that I've built using CMake on Ubuntu 22.04. I have the following CMake setup: ```cmake cmake_minimum_required(VERSION 3.10) project(MyLibrary) set(CMAKE_CXX_STANDARD 17) set(CMAKE_CXX_FLAGS "-g") add_library(mylib SHARED src/mylib.cpp) target_include_directories(mylib PUBLIC include) ``` When I compile the library with `cmake ..` followed by `make`, it seems to build without errors. I verify that the symbols are present in the binary by running `nm -C`: ```bash nm -C libmylib.so | grep my_symbol ``` However, when I run my program that links against this shared library and start GDB, I get the following behavior when trying to set a breakpoint: ``` No symbol table is loaded. Use the file command. ``` I've double-checked that I'm using the same build directory for both the library and the executable. Here’s how I compile the executable: ```cmake cmake_minimum_required(VERSION 3.10) project(MyExecutable) add_executable(myexec src/main.cpp) target_link_libraries(myexec mylib) ``` After building the executable, I run it under GDB, but I still encounter the same scenario. I've tried switching the `CMAKE_BUILD_TYPE` to `Debug` in CMake, but that didn’t help either: ```bash cmake .. -DCMAKE_BUILD_TYPE=Debug ``` Is there any additional configuration I might be missing in either the CMakeLists or while using GDB? Any thoughts on how to resolve this would be greatly appreciated. I'm working in a Linux environment.