how to specify custom gdb path to Adapter

[wss29]

Hi,
I use cdt-gdb-vscode in eclipse theia application in linux. it is ok when I debug c++ code by default gdb. debug config as follows
{
"name": "c++ test",
"types": "gdb",
"request": "launch",
"program": "my c++ a.out",
"cwd": "${workspaceFolder}"
}
now I want to use my custom gdb to debug some specific c++ code. I set miDebuggerPath in configuration, but it seems that debugger still use default gdb, not my custom gdb. I am not sure whether miDebuggerPath is the right param. config as follow
{
"name": "custom gdb c++ test",
"types": "gdb",
"request": "launch",
"program": "my c++ a.out",
"cwd": "${workspaceFolder}",
"MIMode": "gdb",
"miDebuggerPath": "path/to/my/custom gdb"
}

[jonahgraham]

The right option is "gdb". Try the autocomplete in the launch.json editor to explore the options and feel free to ask follow ups.

[wss29]

The right option is "gdb". Try the autocomplete in the launch.json editor to explore the options and feel free to ask follow ups.

Hi,
I use the gdb option, but it seems that still use Linux default gdb, not the sparc-gdb I specify. Am I missing something?

[jonahgraham]

That's weird the error says ENOENT which means it couldn't find the path. I'm surprised it displayed an error like that and still started a different gdb. Is the path passed as "gdb" work in the terminal? I wonder if you are experiencing a bug with encoding. Does it work if you put sparc gdb in /tmp?

[wss29]

That's weird the error says ENOENT which means it couldn't find the path. I'm surprised it displayed an error like that and still started a different gdb. Is the path passed as "gdb" work in the terminal? I wonder if you are experiencing a bug with encoding. Does it work if you put sparc gdb in /tmp?

hi
before using cdt-gdt-vscode, we use ms-vscode.cpptools as the adapter for debug gdb, in cpptools the path works. We will try to test it in /tmp next Monday.

[jonahgraham]

I look forward to your analysis. Your use case should work and if we find an issue in the adapter I'll be pleased to fix or help fix it.

[wss29]

hi,
I tried copying spac-gdb to the tmp folder, and it still does not work. As you can see in the terminal spac-gdb works, but not by launch.json options.

[jonahgraham]

The error message certainly matches up with the adapter not being able to find sparc-gdb - however I can't see why sparc-gdb isn't working.

I will point out that while you copied sparc-gdb to your /tmp, you didn't screenshot an updated launch.json that pointed at that gdb.

In addition I see this in your screenshots.

In this screenshot where you show sparc-gdb working:

the directory that contains sparc-gdb is different that what you entered in the "gdb" field of the launch.json:

Can you confirm that the paths are all correct?

[wss29]

hi
I set the gdb path to tmp in launch.json. it works okay now, but I have another option that needs to be set. in cpp-tools it is 'miDebuggerServerAddress'. I look at options in cdt-gdb-vscode, and it seems that debuggerServer is , I try to give it value. but it is not work.

[jonahgraham]

For remote connections use "type" --> gdbtarget and fill out the target section which has all the settings you expect, like host, port, server. If you use type = gdbtarget and request = launch, then the adapter will automatically start the gdbserver you specify in server - if you are launching the gdbserver manually (perhaps on another machine via ssh), you will probably want to use type = gdbtarget and request = attach

BTW Are you an end user or an extender?