使用GCC时，CLion调试器无法正常工作 [英] CLion debugger not working when using gcc

问题描述

我正在尝试配置CLion，以便可以使用openMP.在Mac上使用默认设置时，编译器为clang.默认的Apple clang不支持openMP.

Im trying to configure CLion so that I can use openMP. When using the default settings on my Mac, the compiler is clang. Default Apple clang does not support openMP.

当我将编译器更改为GCC时，调试器不会在断点处停止.该程序将像执行编译文件时那样运行.

When I change my compiler to GCC, the debugger will not stop at breakpoints. The program just runs as it would when executing the compiled file.

下面的CMakeLists.txt文件可与CLion调试器完美配合.当我取消注释编译器标志时，调试器将忽略断点.

The CMakeLists.txt file below works perfectly with CLion debugger. When I uncomment out the compiler flags, the debugger ignores the breakpoints.

cmake_minimum_required(VERSION 3.8)
project(CLionTest)

set(CMAKE_C_STANDARD 99)
#set(CMAKE_C_COMPILER /usr/local/bin/gcc-7)
#set(CMAKE_C_FLAGS -fopenmp)
#set(CMAKE_C_FLAGS_DEBUG "-D_DEBUG")

set(MAIN main.c)
add_executable(CLionTest ${MAIN})

add_custom_target(CLionTestMake COMMAND make all WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})

我该如何解决?

工具链设置:CMake可执行文件:捆绑的CMake 3.8.2调试器:捆绑的LLDB 3.9.0

Toolchain settings: CMake executable: Bundeled CMake 3.8.2 Debugger: Bundled LLDB 3.9.0

main.c:

#include <stdio.h>
#include <unistd.h>
#ifdef _OPENMP
  #include <omp.h>
#endif

int main() {
    printf("Hello, World!\n");

    #pragma omp parallel
    {
        #ifdef _OPENMP
          int size = omp_get_num_threads();
          int rank = omp_get_thread_num();
        #else
          int rank = 0;
          int size = 1;
        #endif
        printf("%d/%d\n", rank, size);
    };

    return 0;
}

推荐答案

set(CMAKE_C_FLAGS -fopenmp)
set(CMAKE_C_FLAGS_DEBUG "-D_DEBUG")

您要替换C标志而不是附加C标志，因此要删除生成调试符号的内置 -g 选项.相反，

You are replacing the C flags instead of appending them, so you are dropping the builtin -g option that generates debug symbols. Instead, do

set(CMAKE_C_FLAGS "${CMAKE_CFLAGS} -fopenmp")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG")

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