fork 后调试子进程（配置了 follow-fork-mode 子进程）

如何使用 GDB 调试子进程（配置了 follow-fork-mode 子进程）

(gdb) set follow-fork-mode child

cpp
#include 
#include 
#include 
int main() {
    pid_t pid = fork();
    if (pid == -1) {
        std::cerr << "Failed to fork the process." << std::endl;
        return 1;
    }
    if (pid == 0) {
        // This is the child process.
        std::cout << "Hello from the child process!" << std::endl;
        sleep(5);
        std::cout << "Child process exiting." << std::endl;
    } else {
        // This is the parent process.
        std::cout << "Hello from the parent process!" << std::endl;
        sleep(2);
        std::cout << "Parent process exiting." << std::endl;
    }
    return 0;
}

$ g++ -g -o fork_example fork_example.cpp

$ gdb fork_example

(gdb) set follow-fork-mode child

(gdb) run