KolibriOS/kolibrios
18
28 Fork 71
Code Issues 155 Pull Requests 69 Actions 1 Projects 2 Releases Wiki Activity

[GSoC] apps/wasm: add WASM 1.0 binary parser and disassembler #397

Open
dannydod wants to merge 1 commits from dannydod/kolibrios:wasm-parser into main
pull from: dannydod/kolibrios:wasm-parser
merge into: KolibriOS:main
Conversation 0 Commits 1 Files Changed 10
+2026
dannydod commented 2026-03-30 13:08:25 +00:00
First-time contributor
Copy link
Copy source

Add a WASM parser/disassembler for KolibriOS in x86 FASM.
Parses all 12 sections of the WASM binary format and prints out output.
Tested on real WASM binaries (QEMU).
Sections: type, import, function, table, memory, global, export,
start, element, data, custom.

Note:
leb128_decode_i64 is not implemented yet correctly
i64.const parser function is currently stubbed
Code section is currently being skipped

Add a WASM parser/disassembler for KolibriOS in x86 FASM. Parses all 12 sections of the WASM binary format and prints out output. Tested on real WASM binaries (QEMU). Sections: type, import, function, table, memory, global, export, start, element, data, custom. Note: leb128_decode_i64 is not implemented yet correctly i64.const parser function is currently stubbed Code section is currently being skipped
Screenshot from 2026-03-30 14-07-27.png
52 KiB
Screenshot from 2026-03-30 14-07-27.png
dannydod marked the pull request as ready for review 2026-03-30 18:22:29 +00:00
dannydod added 1 commit 2026-03-30 18:30:38 +00:00
wasm: add WASM 1.0 binary parser and disassembler
Build system / Check kernel codestyle (pull_request) Successful in 40s
Details
Build system / Build (pull_request) Successful in 14m17s
Details
e16589e95e 
Implements a WASM 1.0 binary parser for KolibriOS written in x86 FASM.
Parses all 12 sections of the WASM binary format and prints
disassembly output. Tested against real WASM binaries.

Sections implemented: type, import, function, table, memory, global,
export, start, element, data, custom. Code section parsing is planned
for the next commit.
dannydod force-pushed wasm-parser from 46d867f307 to e16589e95e 2026-03-30 18:30:38 +00:00 Compare
Burer changed title from wasm: add WASM 1.0 binary parser and disassembler to [GSoC] apps/wasm: add WASM 1.0 binary parser and disassembler 2026-06-07 16:56:34 +00:00
Some checks are pending
Build system / Check kernel codestyle (pull_request) Successful in 40s
Details
Build system / Build (pull_request) Successful in 14m17s
Details
Test PR / Build *
Required
Checking for merge conflicts…
View command line instructions

Checkout

From your project repository, check out a new branch and test the changes.
git fetch -u https://git.kolibrios.org/dannydod/kolibrios wasm-parser:dannydod-wasm-parser
git checkout dannydod-wasm-parser
Sign in to join this conversation.
Reviewers
No Reviewers
Labels
Clear labels
Influence/Text/TYPO
AI
Eolite
FS
GSoC
This issue or PR in the Google Source of Code program
 Good First PR
The issue is suitable to beginners
 HLL
HardwareTested
IRCC
Influence/Settings
Lang/C
Lang/FASM
Pay for the code
Paid task
 Subsystem/API
Subsystem/Audio
infinity service, audio drivers, midi, speacker, audio programs
 Subsystem/Graphics
vesa, vga, framebuffer, cursors, blitter, and video drivers
 Subsystem/IPC and events
pipes, signals, events, shared memory
 Subsystem/Memory
virt and phys memory allocators, malloc and other
 Subsystem/Network
Subsystem/Services(daemon)
userspace and kernel(for example: serial) services
 Subsystem/Taskmanager
process, threads, run apps, scheduler
 Subsystem/VFS
drivers from filesystem, fs api, blkdev, programs that work with the file system
 Subsystem/Window
windows, skins, buttons, mouse and keyboard code for windows (not the base code)
Category
Applications
Category
Drivers
Category
General
Category
Kernel
Category
Libraries
Kind
Breaking
Breaking change that won't be backward compatible
Kind
Bug
Something is not working
Kind
Build
Kind
Documentation
Documentation changes
Kind
Enhancement
Improve existing functionality
Kind
Feature
New functionality
Kind
Security
This is security issue
Kind
Testing
Issue or pull request related to testing
PR
Ready to merge
Pull request is ready for merge
PR
Conflicts
PR conflicts with main
PR
Dependent
This PR is dependent on another PR
PR
Request changes
Changes requested in pull request
PR
Review required
Priority
Critical
1
The priority is critical
Priority
High
2
The priority is high
Priority
Medium
3
The priority is medium
Priority
Low
4
The priority is low
Reviewed
Confirmed
Issue has been confirmed
Reviewed
Duplicate
This issue or pull request already exists
Reviewed
Invalid
Invalid issue
Reviewed
Won't Fix
This issue won't be fixed
Status
Abandoned
Somebody has started to work on this but abandoned work
Status
Blocked
Something is blocking this issue or pull request
Status
Need More Info
Feedback is required to reproduce issue or to continue work
No labels
Milestone
No items
No Milestone
Projects
Clear projects
No projects
Assignees
Clear assignees
ace-dent (Andrew) b00bl1k (Alexey Ryabov) bad_Dr3dd0x Burer Doczom (Mikhail Frolov) dunkaist (Ivan B) Egor00f (Егор Ярин) hidnplayr IgorA kolibrios-bot Bot mxlgv (Max Logaev) ramenu raTaHoa90 (Сергеев Данила) rgimad sdongles (Serhii Sakhno) Sweetbread (Gleb Zaharov)
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: KolibriOS/kolibrios#397