mirror of
https://github.com/oven-sh/bun
synced 2026-02-15 05:12:29 +00:00
2a41c7ec43
Add CI steps that verify baseline builds don't use CPU instructions beyond their target. Uses QEMU user-mode emulation with restricted CPU features — any illegal instruction causes SIGILL and fails the build. Platforms verified: - linux-x64-baseline (glibc): qemu-x86_64 -cpu Nehalem (catches AVX/AVX2) - linux-x64-musl-baseline: same - linux-aarch64 (glibc): qemu-aarch64 -cpu cortex-a35 (catches LSE/SVE) - linux-aarch64-musl: same Each step runs two smoke tests under QEMU: 1. bun --version (startup + linker + static init) 2. bun -e eval (JSC initialization + basic execution)
97 lines
2.5 KiB
Bash
Executable File
97 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
set -euo pipefail
|
|
|
|
# Verify that a Bun binary doesn't use CPU instructions beyond its baseline target.
|
|
# Uses QEMU user-mode emulation with restricted CPU features.
|
|
# Any illegal instruction (SIGILL) causes exit code 132 and fails the build.
|
|
|
|
ARCH=""
|
|
BINARY=""
|
|
|
|
while [[ $# -gt 0 ]]; do
|
|
case $1 in
|
|
--arch) ARCH="$2"; shift 2 ;;
|
|
--binary) BINARY="$2"; shift 2 ;;
|
|
*) echo "Unknown arg: $1"; exit 1 ;;
|
|
esac
|
|
done
|
|
|
|
if [ -z "$ARCH" ] || [ -z "$BINARY" ]; then
|
|
echo "Usage: $0 --arch <x64|aarch64> --binary <path>"
|
|
exit 1
|
|
fi
|
|
|
|
if [ ! -f "$BINARY" ]; then
|
|
echo "ERROR: Binary not found: $BINARY"
|
|
exit 1
|
|
fi
|
|
|
|
# Install QEMU user-mode
|
|
echo "--- Installing QEMU user-mode"
|
|
if command -v apk &>/dev/null; then
|
|
if [ "$ARCH" = "x64" ]; then
|
|
apk add --no-cache qemu-x86_64
|
|
else
|
|
apk add --no-cache qemu-aarch64
|
|
fi
|
|
elif command -v dnf &>/dev/null; then
|
|
dnf install -y qemu-user-static
|
|
elif command -v apt-get &>/dev/null; then
|
|
apt-get update -qq && apt-get install -y -qq qemu-user-static
|
|
else
|
|
echo "ERROR: No supported package manager found (apk/dnf/apt-get)"
|
|
exit 1
|
|
fi
|
|
|
|
# Select QEMU binary and CPU model
|
|
HOST_ARCH=$(uname -m)
|
|
if [ "$ARCH" = "x64" ]; then
|
|
QEMU_BIN="qemu-x86_64"
|
|
if [ -f "/usr/bin/qemu-x86_64-static" ]; then
|
|
QEMU_BIN="qemu-x86_64-static"
|
|
fi
|
|
QEMU_CPU="Nehalem"
|
|
elif [ "$ARCH" = "aarch64" ]; then
|
|
QEMU_BIN="qemu-aarch64"
|
|
if [ -f "/usr/bin/qemu-aarch64-static" ]; then
|
|
QEMU_BIN="qemu-aarch64-static"
|
|
fi
|
|
QEMU_CPU="cortex-a35"
|
|
else
|
|
echo "ERROR: Unknown arch: $ARCH"
|
|
exit 1
|
|
fi
|
|
|
|
echo "--- Verifying baseline CPU compatibility"
|
|
echo "Binary: $BINARY"
|
|
echo "QEMU: $QEMU_BIN -cpu $QEMU_CPU"
|
|
echo "Host: $HOST_ARCH"
|
|
|
|
run_test() {
|
|
local label="$1"
|
|
shift
|
|
echo "+++ Test: $label"
|
|
if "$QEMU_BIN" -cpu "$QEMU_CPU" "$@"; then
|
|
echo "PASS: $label"
|
|
return 0
|
|
fi
|
|
local exit_code=$?
|
|
if [ $exit_code -eq 132 ]; then
|
|
echo ""
|
|
echo "FATAL: Illegal instruction (SIGILL) detected during: $label"
|
|
echo "The binary uses CPU instructions not available on $QEMU_CPU."
|
|
if [ "$ARCH" = "x64" ]; then
|
|
echo "The baseline x64 build targets Nehalem (SSE4.2). AVX/AVX2/AVX512 instructions are not allowed."
|
|
else
|
|
echo "The aarch64 build targets Cortex-A35 (ARMv8.0-A+CRC). LSE atomics, SVE, and dotprod are not allowed."
|
|
fi
|
|
fi
|
|
exit $exit_code
|
|
}
|
|
|
|
run_test "bun --version" "$BINARY" --version
|
|
run_test "bun -e eval" "$BINARY" -e "console.log(JSON.stringify({ok:1+1}))"
|
|
|
|
echo ""
|
|
echo "Baseline CPU verification passed for $ARCH ($QEMU_CPU)."
|