mirror of
https://github.com/Nexoniarz/Finch.git
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837ad45177
src/embedded.fch (made by tools/pack.fch, checked by tests/run.sh) holds runtime/finch_rt.c and std/; when they aren't beside the binary they're written to the cache folder once. All the sh/cmd specifics of the driver (quoting, temp dir, mkdir, rm, mv, null device, path separator, cache dir, binary stdio) moved into host.fch / host_windows.fch. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015f73FesGZGYPkmDvUcj6QX
51 lines
2.3 KiB
Shell
Executable file
51 lines
2.3 KiB
Shell
Executable file
#!/bin/sh
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# Builds the Finch compiler without a compiler for Finch: from the seed (the compiler's own LLVM IR),
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# then from itself, and checks that the two come out the same.
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#
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# bootstrap/build.sh build/finch
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# bootstrap/build.sh seed also write bootstrap/<system>.ll anew (do this when the compiler got a feature
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# its own source uses, or the seed is old: the next build starts from it)
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#
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# Needs clang and libclang (the C headers are read through it). The compiler is then in build/finch. It carries the
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# runtime and the standard library inside itself (src/embedded.fch), so it runs from anywhere.
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set -eu
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cd "$(dirname "$0")/.."
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mkdir -p build
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case "$(uname -s)-$(uname -m)" in
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Linux-x86_64) seed=linux-x86_64 ;;
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Linux-aarch64|Linux-arm64) seed=linux-aarch64 ;;
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Darwin-arm64) seed=macos-arm64 ;;
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Darwin-x86_64) seed=macos-x86_64 ;;
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MINGW*|MSYS*|CYGWIN*) seed=windows-x86_64 ;;
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*) echo "bootstrap: no seed for $(uname -s) $(uname -m) (see bootstrap/README.md)" >&2; exit 1 ;;
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esac
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[ -f "bootstrap/$seed.ll" ] || { echo "bootstrap: bootstrap/$seed.ll is missing" >&2; exit 1; }
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CLANG=${FINCH_CLANG:-clang}
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LIBS=${FINCH_LIBCLANG:--lclang}
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export FINCH_RT=$PWD/runtime/finch_rt.c
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echo "bootstrap: seed ($seed) -> build/finch0"
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$CLANG -O1 -w "bootstrap/$seed.ll" runtime/finch_rt.c -o build/finch0 -lm $LIBS
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echo "bootstrap: build/finch0 packs the runtime and std into src/embedded.fch"
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bootstrap/pack.sh build/finch0
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echo "bootstrap: build/finch0 builds the compiler -> build/finch1"
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build/finch0 build src/main.fch -o build/finch1
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echo "bootstrap: build/finch1 builds the compiler -> build/finch"
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build/finch1 build src/main.fch -o build/finch
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# a compiler that builds itself must come out the same however many times it does
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build/finch1 ir src/main.fch > build/stage1.ll
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build/finch ir src/main.fch > build/stage2.ll
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if cmp -s build/stage1.ll build/stage2.ll; then
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echo "bootstrap: build/finch1 and build/finch make the same IR ($(wc -l < build/stage2.ll) lines): done"
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else
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echo "bootstrap: the compiler does not reproduce itself (build/stage1.ll and build/stage2.ll differ)" >&2
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exit 1
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fi
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if [ "${1:-}" = seed ]; then
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cp build/stage2.ll "bootstrap/$seed.ll"
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echo "bootstrap: wrote bootstrap/$seed.ll"
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fi
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