49c9d04fbc
Built alone from an empty CARGO_HOME, its tests passed, and flowrsc checked, ran and exported a document from the conformance corpus; the export built alone. Co-Authored-By: Claude Opus 5.5 <[email protected]>
16 lines
862 B
Shell
Executable file
16 lines
862 B
Shell
Executable file
#!/bin/bash
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# The bare-metal fixture, built with LLVM (Homebrew's clang and ld.lld have the Mips target;
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# no GCC, no vendor library): a whole-chip ELF with its own reset code and configuration words.
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# build.sh <out dir>
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set -euo pipefail
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D=$(cd "$(dirname "$0")" && pwd)
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O=${1:-$D/out}
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mkdir -p "$O"
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CC=/opt/homebrew/opt/llvm/bin/clang
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LD=/opt/homebrew/bin/ld.lld
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FLAGS="--target=mipsel-none-elf -march=mips32r2 -mabi=32 -mno-abicalls -fno-pic -G0 -msoft-float -O2 -ffreestanding -fno-builtin -Wall -Werror"
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$CC $FLAGS -c "$D/start.S" -o "$O/start.o"
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$CC $FLAGS -c "$D/main.c" -o "$O/main.o"
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$LD -T "$D/link.ld" -nostdlib --no-pie -z max-page-size=16 "$O/start.o" "$O/main.o" -o "$O/pic32-baremetal.elf"
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/opt/homebrew/opt/llvm/bin/llvm-objdump -h "$O/pic32-baremetal.elf" | grep -E "reset|config|vectors|text|data|bss"
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shasum -a 256 "$O/pic32-baremetal.elf"
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