如何在vscode中搭建lldb环境？

Question

全部。我正在尝试在 vscode 中为 lldb 设置环境。例如，在终端上，如果我在 lldb 中运行可执行文件，我会得到以下信息：

(base) cdwalke8@MSLAL0422100041 examples % lldb ./ExampleRunner
(lldb) target create "./ExampleRunner"
Current executable set to '/Users/cdwalke8/Desktop/Dev/examples/ExampleRunner' (x86_64).
(lldb) r
Process 65031 launched: '/Users/cdwalke8/Desktop/Dev/examples/ExampleRunner' (x86_64)
dyld[65031]: Library not loaded: ../lib/libex.so
  Referenced from: <953E1B45-2D99-3202-A89D-EEC0565FBD7C> /Users/cdwalke8/Desktop/Dev/examples/ExampleRunner
  Reason: tried: '../lib/libex.so' (no such file), '/System/Volumes/Preboot/Cryptexes/OS../libex.so' (no such file), '../lib/libex.so' (no such file), '/usr/local/lib/libex.so' (no such file), '/usr/lib/libex.so' (no such file, not in dyld cache)
Process 65031 stopped
* thread #1, stop reason = signal SIGABRT
    frame #0: 0x00007ff813265c66 dyld`__abort_with_payload + 10
dyld`:
->  0x7ff813265c66 <+10>: jae    0x7ff813265c70            ; <+20>
    0x7ff813265c68 <+12>: movq   %rax, %rdi
    0x7ff813265c6b <+15>: jmp    0x7ff8131fd170            ; cerror_nocancel
    0x7ff813265c70 <+20>: retq   
Target 0: (ExampleRunner) stopped.

但是，如果我启动 lldb 并设置如下环境：

(base) cdwalke8@MSLAL0422100041 examples % lldb ./ExampleRunner
(lldb) target create "./ExampleRunner"
Current executable set to '/Users/cdwalke8/Desktop/Dev/examples/ExampleRunner' (x86_64).
(lldb) env DYLD_LIBRARY_PATH=/Users/cdwalke8/Desktop/Dev/Build/lib
(lldb) r
Process 65174 launched: '/Users/cdwalke8/Desktop/Dev/examples/ExampleRunner' (x86_64)

# This is not really what the program does, I am just replacing with Hello World for simplicity

====================
Hello World!  
====================

现在，当我在 launch.json 中设置它时，调试终端显示与我展示的第一个示例类似的问题，但我已经设置了环境：

{
    "configurations": [

        {
            "name": "C/C++: clang build and debug active file",
            "type": "cppdbg",
            "request": "launch",
            "program": "/Users/cdwalke8/Desktop/Dev/examples/ExampleRunner",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${fileDirname}",
            "externalConsole": false,
            "MIMode": "lldb",
            "environment": [{
                "name":"DYLD_LIBRARY_PATH", 
                "value": "/Users/cdwalke8/Desktop/Dev/Build/lib",
            }],
            "preLaunchTask": "C/C++: clang build active file"
        }
    ],
    "version": "2.0.0"
}

为什么这不起作用？或者，我应该更改什么才能让 lldb 在启动调试器之前正确设置环境路径？

谢谢！

Answer 1

我找到了将导出变量传递给 lldb 的答案。只需在 .vscode 目录中创建一个名为 project.env 的文件即可。

将其添加到其中：

DYLD_LIBRARY_PATH=/Users/cdwalke8/Desktop/Dev/Build/lib

然后，更改 launch.json 以包含

envFile

设置：

{
    "configurations": [

        {
            "name": "C/C++: clang build and debug active file",
            "type": "cppdbg",
            "request": "launch",
            "program": "/Users/cdwalke8/Desktop/Dev/examples/ExampleRunner",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${fileDirname}",
            "externalConsole": false,
            "MIMode": "lldb",
            "environment": [{
                "name":"DYLD_LIBRARY_PATH", 
                "value": "/Users/cdwalke8/Desktop/Dev/Build/lib",
            }],
            "preLaunchTask": "C/C++: clang build active file", 
            "envFile": "/Users/cdwalke8/Desktop/Dev/examples/.vscode/project.env"

        }
    ],
    "version": "2.0.0"
}