Debug FASM with VS Code

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KIRK

Joined: 05 Dec 2007
Posts: 20
Location: Russia

KIRK 10 Jul 2022, 08:39

VS Code is probably one of the most convenient code editors, it would be cool to make an extension for debugging applications on FASM or use an existing extension and somehow tweak it to generate and use a .fas debug file.

Some links I have already found:

CodeLLDB
https://marketplace.visualstudio.com/items?itemName=vadimcn.vscode-lldb

Native Debug (GDB, LLDB support)
https://marketplace.visualstudio.com/items?itemName=webfreak.debug

MASM/TASM (works via DOSBox)
https://marketplace.visualstudio.com/items?itemName=xsro.masm-tasm

Symbolic/debug information
https://board.flatassembler.net/topic.php?t=9792

OLLY plugin which adds FASM debug info
https://board.flatassembler.net/topic.php?p=114370

My debugging symbols solution
https://board.flatassembler.net/topic.php?p=149572#149572

Adding windows debug info into .obj file generated fasm
https://board.flatassembler.net/topic.php?p=89369

VS Code Launch Configuration
https://code.visualstudio.com/docs/editor/debugging#_launch-configurations

Last edited by KIRK on 10 Jul 2022, 18:42; edited 6 times in total

10 Jul 2022, 08:39

Roman

Joined: 21 Apr 2012
Posts: 1847

Roman 10 Jul 2022, 08:50

Nice write json highlightings syntax fasm.
I try do this in vs code.

I find vim macro cool feature.
https://www.youtube.com/watch?v=3lmsPScLHb0

Last edited by Roman on 10 Jul 2022, 09:48; edited 1 time in total

10 Jul 2022, 08:50

KIRK

Joined: 05 Dec 2007
Posts: 20
Location: Russia

KIRK 10 Jul 2022, 09:46

These are my settings for CodeLLDB.

Steps:
- add settings below
- open your asm file
- add int3 instruction at the beginning
- press F5 twice for x86, once for x64

Sample file:

Code:

format PE64 GUI
; format PE GUI 4.0
; include 'win32a.inc'
entry @start

@start:
        int3
        mov eax, 3
        ret

.vscode/launch.json

Code:

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "lldb",
      "request": "launch",
      "name": "Debug",
      "cwd": "${fileDirname}",
      "program": "${fileBasenameNoExtension}.exe",
      "preLaunchTask": "Сompile",
      "args": [],
    }
  ]
}

.vscode/tasks.json

Code:

{
  "version": "2.0.0",
  "tasks": [{
      "type": "process",
      "label": "Сompile",
      "command": "C:/FASM/FASM.EXE",
      "options": {
        "cwd": "${fileDirname}"
      },
      "args": ["${file}", "${fileBasenameNoExtension}.exe"]
  }]
}

settings.json

Code:

"terminal.integrated.env.windows": {
  "INCLUDE": "C:/FASM/INCLUDE",
}

10 Jul 2022, 09:46

KIRK

Joined: 05 Dec 2007
Posts: 20
Location: Russia

KIRK 10 Jul 2022, 11:55

Run with custom debugger:

"F5 Anything" extension
https://marketplace.visualstudio.com/items?itemName=discretegames.f5anything

.vscode/launch.json

Code:

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Debug with OllyDbg",
      "type": "f5anything",
      "request": "launch",
      "command": "\"C:/OllyDbg/ollydbg.exe\" \"${fileDirname}/${fileBasenameNoExtension}.exe\"",
      "preLaunchTask": "Сompile",
    }
  ]
}

10 Jul 2022, 11:55

fuct

Joined: 30 Nov 2021
Posts: 2

fuct 30 Nov 2024, 21:36

I read on StackOverflow that you can use RetroAssembler to develop FASM in VSCode; simply choose the compiler for building. However, this is not an officially supported feature. There are a couple of other FASM syntax highlighting plugins, but none of them are actively maintained - just highlighting only.

Would love to see a supported plugin, even if it's just basic features (build/highlighting). Unfortunately, I don't have the bandwidth to take on another side project.

https://marketplace.visualstudio.com/items?itemName=EngineDesigns.retroassembler

What do you all use for a decent IDE, fresh?

30 Nov 2024, 21:36

AsmGuru62

Joined: 28 Jan 2004
Posts: 1671
Location: Toronto, Canada

AsmGuru62 01 Dec 2024, 01:21

I use my own IDE I coded in 2009.
I have colored syntax, tooltips, code completion, code fragments database, etc.

01 Dec 2024, 01:21

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