50 lines
1.4 KiB
Bash
Executable File
50 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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if [ "$#" -ne 1 ]; then
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echo "Error: Must provide the full path to the project to build"
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exit 1
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fi
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if [ ! -f "$1/Cargo.toml" ]; then
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echo "Error: Cannot find project: $1"
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exit 1
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fi
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echo "Building $1"
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set -e
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bpf_sdk=$(cd "$(dirname "$0")/.." && pwd)
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# Ensure the sdk is installed
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"$bpf_sdk"/scripts/install.sh
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# Use the SDK's version of llvm to build the compiler-builtins for BPF
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export CC="$bpf_sdk/dependencies/llvm-native/bin/clang"
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export AR="$bpf_sdk/dependencies/llvm-native/bin/llvm-ar"
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# Use the SDK's version of Rust to build for BPF
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export RUSTUP_TOOLCHAIN=bpf
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export RUSTFLAGS="
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-C lto=no \
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-C opt-level=2 \
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-C link-arg=-z -C link-arg=notext \
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-C link-arg=-T$bpf_sdk/rust/bpf.ld \
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-C link-arg=--Bdynamic \
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-C link-arg=-shared \
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-C link-arg=--entry=entrypoint \
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-C link-arg=-no-threads \
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-C linker=$bpf_sdk/dependencies/llvm-native/bin/ld.lld"
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# CARGO may be set if build.sh is run from within cargo, causing
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# incompatibilities between cargo and xargo versions
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unset CARGO
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# Setup xargo
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export XARGO_HOME="$bpf_sdk/dependencies/xargo"
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export XARGO_RUST_SRC="$bpf_sdk/dependencies/rust-bpf-sysroot/src"
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export RUST_COMPILER_RT_ROOT="$bpf_sdk/dependencies/rust-bpf-sysroot/src/compiler-rt"
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cd "$1"
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xargo build --target bpfel-unknown-unknown --release --no-default-features --features program
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{ { set +x; } 2>/dev/null; echo Success; }
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