dafc7eacec
- the loader build id (the JIT cache key) comes from the linked binary: on macOS a hash of the code signature's page hashes, on Linux the GNU build id; a stripped or re-linked binary gets a new id, at no startup cost - tools/run/fixture/diff_fast.sh runs a set of programs under makepad run at baseline and O3 and compares them with rustc (about 5 s); diff_full.sh adds the compiler test corpus and a Calculator input replay on Linux Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
17 lines
1.2 KiB
Bash
Executable file
17 lines
1.2 KiB
Bash
Executable file
#!/bin/sh
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# Regression test: the loader's build id comes from the linked bytes. The same binary gives the same
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# id on every run, and a different binary gives a different one even when only link-edit data differs
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# (a symbol-stripped relink: same code and data, fewer bytes).
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# Run from the workspace root after `cargo build --release -p makepad-run`. TARGET defaults to target/release.
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T=${TARGET:-target/release}
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dir=$(mktemp -d "${TMPDIR:-/tmp}/build_id.XXXXXX") || exit 1
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id() { MAKEPAD_RUN_CACHE_FP=features MAKEPAD_RUN_VERBOSE=1 "$1" check makepad-app-calculator 2>&1 | sed -n 's/.*build id \([0-9a-f]*\).*/\1/p' | head -1; }
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a=$(id "$T/makepad"); b=$(id "$T/makepad")
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cp "$T/makepad" "$dir/makepad.orig"
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CARGO_INCREMENTAL=0 cargo rustc --release -p makepad-run --bin makepad -- -C strip=symbols >/dev/null 2>&1 || { echo "FAIL: relink"; exit 1; }
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cp "$T/makepad" "$dir/makepad.stripped"
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c=$(id "$dir/makepad.stripped")
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echo "orig $a / again $b / stripped $c"
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[ -n "$a" ] && [ "$a" = "$b" ] || { echo "FAIL: the same binary gave different ids"; exit 1; }
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[ -n "$c" ] && [ "$a" != "$c" ] || { echo "FAIL: different binaries gave the same id"; exit 1; }
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echo "ok (rebuild with cargo build --release -p makepad-run to restore the unstripped binary)"
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