Question

我有这个问题： https://github.com/Microsoft/vscode-cpptools/issues/511

但那里的解决方案不起作用。

我尝试过相同的简单示例代码，

#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>

int main()
{
    pid_t pid = fork();
    if (pid != 0) {
        printf("Main process\n");
    } else {
        printf("Forked process\n");
    }

    return 0;
}

我使用-g编译，我的launch.json文件如下所示。

我单击debug，我将断点设置为第一行。在第一站，我在调试控制台下输入-exec set follow-fork-mode child，它返回=cmd-param-changed,param="follow-fork-mode",value="child"。然后它只是不起作用。它转到父进程（pid显示为0）。我已尝试使用{"text": "-gdb-set follow-fork-mode child"}在launch.json文件中设置它，但这也不起作用。

{
        "version": "0.2.0",
        "configurations": [

        { 
            "name": "(gdb) Attach",
            "type": "cppdbg",
            "request": "attach",
            "program": "${workspaceRoot}/a.exe",
            "processId": "${command:pickProcess}",
            "MIMode": "gdb",
            "miDebuggerPath": "C:\\cygwin64\\bin\\gdb.exe"
        },
            {
                "name": "(gdb) Launch",
                "type": "cppdbg",
                "request": "launch",
                "program": "${workspaceRoot}/a.exe",
                "args": [],
                "stopAtEntry": false,
                "cwd": "${workspaceRoot}",
                "environment": [],
                "externalConsole": true,
                "MIMode": "gdb",
                "miDebuggerPath": "C:\\cygwin64\\bin\\gdb.exe",
                "setupCommands": [
                    {
                        "description": "Enable pretty-printing for gdb",
                        "text": "-enable-pretty-printing",
                        "ignoreFailures": true
                    }
                ]
            }
        ]
    }

Answer 1

我遇到了同样的问题，我解决了这个问题：


 "setupCommands": [
                    {
                        "description": "Enable funcy printing to gdb",
                        "text": "-enable-pretty-printing",
                        "ignoreFailures": true
                    },
                    {   "description":"In this mode GDB will be attached to both processes after a call to fork() or vfork().",
                        "text": "-gdb-set detach-on-fork off",
                        "ignoreFailures": true
                    },
                    {   "description": "The new process is debugged after a fork. The parent process runs unimpeded.",
                        "text": "-gdb-set follow-fork-mode child",
                        "ignoreFailures": true
                    }
                ],

Visual Studio Code，调试子进程无法正常工作

1 个答案: