pezkuwichain/revive
1
0
Fork 0
mirror of https://github.com/pezkuwichain/revive.git synced 2026-06-15 03:21:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

llvm-builder: do not build clang by default (#168)

Browse Source 
We only need LLD for cross compilation. This significantly reduces the LLVM build times in a cross compilation scenario. Update the README as a drive-by.
This commit is contained in:
Cyrill Leutwiler
2025-01-17 16:03:04 +01:00
committed by GitHub
parent 06f43083c3
commit cec283986f
8 changed files with 38 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files
README.md
+18 -10
View File
@@ -17,29 +17,37 @@ Discussion around the development is hosted on the [Polkadot Forum](https://foru
`resolc` depends on the [solc](https://github.com/ethereum/solidity) binary installed on your system.
Building from source requires a compatible LLVM build.
Download and install the `resolc` frontend executable for your platform from our [releases](https://github.com/paritytech/revive/releases).
## Building from source
Building revive requires a [stable Rust installation](https://rustup.rs/) and a C++ toolchain for building [LLVM](https://github.com/llvm/llvm-project) on your system.
### LLVM
`revive` requires a build of LLVM v18.1.8 with the RISC-V _embedded_ target, including `compiler-rt`. Use the provided [revive-llvm](crates/llvm-builder/README.md) utility to compile a compatible LLVM build locally and point `$LLVM_SYS_181_PREFIX` to the installation directory afterwards.
`revive` depends on a custom build of LLVM `v18.1.8` with the RISC-V _embedded_ target, including the `compiler-rt` builtins. Use the provided [revive-llvm](crates/llvm-builder/README.md) utility to compile a compatible LLVM build locally and point `$LLVM_SYS_181_PREFIX` to the installation afterwards.
The `Makefile` provides a shortcut target to obtain a compatible LLVM build:
```bash
make install-llvm
export LLVM_SYS_181_PREFIX=${PWD}/target-llvm/gnu/target-final
```
### The `resolc` Solidity frontend
To build the `resolc` Solidity frontend executable, make sure you have obtained a compatible LLVM build using [revive-llvm](crates/llvm-builder/README.md) and did export the `LLVM_SYS_181_PREFIX` environment variable pointing to it (see [above](#LLVM)).
To install the `resolc` Solidity frontend executable:
```bash
# Build the host LLVM dependency with PolkaVM target support
make install-llvm
export LLVM_SYS_181_PREFIX=${PWD}/target-llvm/gnu/target-final
# Build the resolc frontend executable
make install-bin
resolc --version
```
### Cross-compilation to WASM
### Cross-compilation to Wasm
Cross-compile resolc.js frontend executable to Wasm for running it in a Node.js or browser environment. The `REVIVE_LLVM_TARGET_PREFIX` environment variable is used to control the target environment LLVM dependency.
Cross-compile the `resolc.js` frontend executable to Wasm for running it in a Node.js or browser environment. The `REVIVE_LLVM_TARGET_PREFIX` environment variable is used to control the target environment LLVM dependency.
```bash
# Build the host LLVM dependency with PolkaVM target support
@@ -49,7 +57,7 @@ export LLVM_SYS_181_PREFIX=${PWD}/target-llvm/gnu/target-final
# Build the target LLVM dependency with PolkaVM target support
revive-llvm --target-env emscripten clone
source emsdk/emsdk_env.sh
revive-llvm --target-env emscripten build
revive-llvm --target-env emscripten build --llvm-projects lld
export REVIVE_LLVM_TARGET_PREFIX=${PWD}/target-llvm/emscripten/target-final
# Build the resolc frontend executable