Rayhaan JaufeerallyandClaude Opus 5.5
e1d819d629
scripts/build-static.sh builds the daemon for x86_64 Linux against musl, as one executable without dependencies to copy to a router. It finds a musl C compiler for jemalloc (musl-cross on macOS, musl-gcc on Linux), and uses its ar and ranlib too: with the host's, a build from macOS gets an empty libjemalloc.a and fails to link. It prints the revision and the SHA-256 of the result. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
50 lines
1.8 KiB
Bash
Executable File
50 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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# Builds the daemon as one static executable for x86_64 Linux, which runs
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# on any x86_64 Linux distribution with nothing else installed.
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#
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# scripts/build-static.sh
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#
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# The executable is linked against musl, with jemalloc as the memory
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# allocator (see bin/bgp/src/main.rs). jemalloc is C, so a C compiler for
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# the target is needed as well as the Rust target:
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#
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# rustup target add x86_64-unknown-linux-musl
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# macOS: brew install FiloSottile/musl-cross/musl-cross
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# Debian, Ubuntu (on x86_64): apt-get install musl-tools
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# Arch (on x86_64): pacman -S musl
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set -eu
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target=x86_64-unknown-linux-musl
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repository="$(cd "$(dirname "$0")/.." && pwd)"
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# The cross compiler from musl-cross, or musl's own wrapper on Linux.
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if command -v x86_64-linux-musl-gcc >/dev/null; then
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cc=x86_64-linux-musl-gcc
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ar=x86_64-linux-musl-ar
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ranlib=x86_64-linux-musl-ranlib
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elif command -v musl-gcc >/dev/null; then
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cc=musl-gcc
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ar=ar
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ranlib=ranlib
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else
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echo "No C compiler for $target: see the comment at the top of $0" >&2
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exit 1
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fi
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cd "$repository"
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# jemalloc is built by its own configure script, which looks for an
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# archiver named after the target (x86_64-unknown-linux-musl-ar) and, not
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# finding one, would take the host's: on macOS that one cannot index Linux
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# objects, and the library comes out empty. So AR and RANLIB are named.
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CC_x86_64_unknown_linux_musl=$cc \
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AR_x86_64_unknown_linux_musl=$ar \
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AR=$ar \
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RANLIB=$ranlib \
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CARGO_TARGET_X86_64_UNKNOWN_LINUX_MUSL_LINKER=$cc \
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cargo build --release --locked -p bgp --target "$target"
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binary="target/$target/release/bgp"
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echo
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file "$binary"
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echo "revision $(git rev-parse --short HEAD)$(git diff --quiet HEAD || echo ', with uncommitted changes')"
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if command -v sha256sum >/dev/null; then sha256sum "$binary"; else shasum -a 256 "$binary"; fi
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