lind-wasm-apps

Various WebAssembly (WASM) application builds intended for use with Lind-Wasm.

This repository contains example and utility applications (benchmarks, demos, etc.) that integrate with the Lind runtime environment to showcase capabilities, facilitate testing, and serve as starting points for WASM-based development.

Lind is a platform for running WASM applications in a secure, sandboxed environment. The lind-wasm-apps project exists to:

• Provide realistic examples of applications compiled to WASM for use in Lind.

• Offer benchmarks and performance tests to validate and stress-test Lind’s runtime.

• Serve as reference implementations or scaffolding for developers building their own WASM apps targeting Lind

Clone this repo (commonly alongside lind-wasm):

• git clone https://github.com/Lind-Project/lind-wasm-apps.git
• cd lind-wasm-apps

Build

==Build everything:==

• make all

Artifacts land underbuild/:

• build/sysroot_overlay/ – staged headers/libs (e.g., libtirpc)
• build/sysroot_merged/ – base sysroot + overlay
• build/lib/ – helper archives (e.g., liblmb_stubs.a, combined libc.a)
• build/bin/lmbench/wasm32-wasi/ – lmbench binaries
• build/bin/bash/wasm32-wasi/ – bash outputs

==List produced binaries:==

• find build/bin -maxdepth 4 -type f -printf '%P\n' | sort

Makefile targets

• make preflight
  Detects toolchain (clang, llvm-ar, llvm-ranlib) and writes build/.toolchain.env.
• make libtirpc
  Builds libtirpc (WASI) and stages into build/sysroot_overlay/.
• make merge-sysroot
  Copies the base sysroot into build/sysroot_merged/ and overlays libtirpc.
• make stubs
  Creates small compatibility stubs needed for lmbench (temporary workaround; see TODOs in Makefile).
• make lmbench
  Builds lmbench via lmbench/src/compile_lmbench.sh and stages into build/bin/lmbench/wasm32-wasi/.
• make bash
  Builds bash via bash/compile_bash.sh and stages into build/bin/bash/wasm32-wasi/.
• `make clean Remove build outputs and merged sysroot + overlay.

Optional environment variables

• LIND_WASM_ROOT – path to lind-wasm (default: ~/lind-wasm)
• WASMTIME_PROFILE – debug or release (scripts fall back to release if missing)
• WASM_OPT, WASMTIME – override tool paths if needed