Build JS-VM
As a C-language contract, ckb-js-vm uses a Makefile to manage its build process and relies on LLVM 18 by default (Theoretically support higher versions). Developers need to install the dependencies in advance. (LLVM 18 already supports RISC-V compilation, so the official release works.)
git submodule update --init
make all
The contract binary is in build/ckb-js-vm. The build/ckb-js-vm.debug binary contains debug symbols and can be used for debugging.
Reproducible Build
When deploying an on-chain script, it's essential to build it from scratch. A key requirement during this process is ensuring that different builds of the same source code produce identical binaries - this is known as a "reproducible build."
You can achieve this with ckb-js-vm using the following command:
bash reproducible_build.sh
Deployment
The script has been deployed on the testnet with these parameters:
| Parameter | Value |
|---|---|
code_hash | 0x3e9b6bead927bef62fcb56f0c79f4fbd1b739f32dd222beac10d346f2918bed7 |
hash_type | type |
tx_hash | 0xf594e7deb3bdec611b20bdf7814acf7779ddf061a8f207b1f3261242b8dc4494 |
index | 0x0 |
dep_type | code |
The corresponding SHA256 checksum in checksums.txt
is: 898260099d49ef84a1fb10f4aae7dae8ef5ec5b34d2edae29a78981fd084f1ed