我在 vscode 中的设置launch.json如下：
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "(gdb) Launch 25.0_regeragpu",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceFolder}/25.0_regeragpu/Blazer/MercuryImageComputer/KT/leaf/M31/BrightField/bin/LeafStandalone/Debug/12/LeafStandAlone.x86-64",
"args": ["-noForcedPatches","${workspaceFolder}/virgo_algo_preq/JobDump/JobInfo_108"],
"stopAtEntry": false,
"cwd": "${workspaceFolder}/25.0_regeragpu/Blazer/MercuryImageComputer/KT/leaf/M31/BrightField/bin/LeafStandalone/Debug/12",
"environment": [],
"externalConsole": false,
"MIMode": "gdb",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
},
{
"description": "Set Disassembly Flavor to Intel",
"text": "-gdb-set disassembly-flavor intel",
"ignoreFailures": true
}
]
}
]
}
此设置的目的是在 vscode 中使用 GDB 集成。特别是，我指定了以下对，以确保在调试时继承 vscode 终端的 bash 会话中设置的所有环境变量："externalConsole": false。我还注意到environment配置中有一对命名的。据我了解，如果通过 vscode 启动一个新的 bash 会话进行调试，那么所有环境变量都应该在这environment对中指定。为了尝试在调试时启动新的 bash 选项，我修改了配置文件：
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "(gdb) Launch 25.0_regeragpu",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceFolder}/25.0_regeragpu/Blazer/MercuryImageComputer/KT/leaf/M31/BrightField/bin/LeafStandalone/Debug/12/LeafStandAlone.x86-64",
"args": ["-noForcedPatches","${workspaceFolder}/virgo_algo_preq/JobDump/JobInfo_108"],
"stopAtEntry": false,
"cwd": "${workspaceFolder}/25.0_regeragpu/Blazer/MercuryImageComputer/KT/leaf/M31/BrightField/bin/LeafStandalone/Debug/12",
"environment": [{"CUDA_VISIBLE_DEVICES":"0,1,2,3","CUDA_DEVICE_ORDER":"PCI_BUS_ID"}],
"externalConsole": true,
"MIMode": "gdb",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
},
{
"description": "Set Disassembly Flavor to Intel",
"text": "-gdb-set disassembly-flavor intel",
"ignoreFailures": true
}
]
}
]
}
特别是，可以看出我指定了以下对："environment": [{"CUDA_VISIBLE_DEVICES":"0,1,2,3","CUDA_DEVICE_ORDER":"PCI_BUS_ID"}]和"externalConsole": true。然而，当我开始调试时，vscode的调试工具永远处于准备状态，从未进入真正的调试会话。如果我想在vscode中新的控制台中调试，应该如何设置环境变量？
答案1
这是一个例子，你在环境堵塞。
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "g++ - (GDB 9.2) Build and debug active file with RepoCodeInspection",
"type": "cppdbg",
"request": "launch",
"program": "${fileDirname}/bin/${fileBasenameNoExtension}",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceFolder}",
"environment": [
{
"description": "same as commands below by using 'setenv ...",
"info": "cant debug b/c of libBase/libRecipe now requiring dependency to boost for stacktrace dumps",
"name": "LD_LIBRARY_PATH",
"value": "/libs/:./"
}
],
"externalConsole": false,
"MIMode": "gdb",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
],
"logging": {
"trace": false,
"traceResponse": false
},
"preLaunchTask": "RepoCodeInspection",
},
{
"name": "g++ - (GDB 9.2) Attach to a running process",
"type": "cppdbg",
"request": "attach",
"processId":"${command:pickProcess}",
"program": "${fileDirname}/bin/${fileBasenameNoExtension}",
"MIMode": "gdb",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
],
"logging": {
"trace": false,
"traceResponse": false
},
"preLaunchTask": "RepoCodeInspection",
},
]
}
答案2
要设置多个环境变量，请使用逗号分隔的"name", "value"对。
例子：
"environment": [{"name": "LD_LIBRARY_PATH", "value": "/ld/library/path/"},
{"name": "CUDA_VISIBLE_DEVICES", "value": "0"}
]
答案3
让我们来调试您的问题。首先，请记住：这是一个 JSON 文件，因此我们需要思考将其作为 JSON 文件。
这是我们正在考虑的初始 JSON 对象：
"environment": [
{
"CUDA_VISIBLE_DEVICES": "0,1,2,3",
"CUDA_DEVICE_ORDER": "PCI_BUS_ID"
}
]
所以我们有一个名为“environment”的JSON 数组（由[&表示），其中包含]单个对象{（由&表示}）。那单身的对象然后包含二键/值对。问题就在这里。
具有多个键值对的单个对象就像struct在 C 中，而不是一个简单的变量，它有一个单身的键/值对。
从逻辑上讲，我会说我们欲望这是：
- 我们的“环境”将保存许多“环境变量”
- 我们的环境变量每个都有一个键和一个值。
重新调整我们的[]&组合{}会产生以下结果：
"environment": [
{
"CUDA_VISIBLE_DEVICES": "0,1,2,3"
},
{
"CUDA_DEVICE_ORDER": "PCI_BUS_ID"
}
]