update

2026-08-18 09:20:44 +02:00
commit b826cd721a
522 changed files with 93730 additions and 0 deletions
@@ -0,0 +1,84 @@
+#!/bin/sh
+set -eu
+
+dut=${1:?DUT path is required}
+freebsd_src=${2:?FreeBSD source path is required}
+output=${3:?output module path is required}
+work=${4:?work directory is required}
+zstdio=${5:?WITH_ZSTDIO value is required}
+src=$dut/src
+sys=$freebsd_src/sys
+target=x86_64-unknown-freebsd15.0
+
+case "$zstdio" in
+0|1) ;;
+*) printf '%s\n' 'WITH_ZSTDIO must be 0 or 1' >&2; exit 20 ;;
+esac
+test -d "$sys" || { printf '%s\n' "FreeBSD sys tree is absent: $sys" >&2; exit 21; }
+for tool in awk clang cmp grep nm; do
+	command -v "$tool" >/dev/null 2>&1 || {
+		printf '%s\n' "missing B28 KLD tool: $tool" >&2
+		exit 21
+	}
+done
+test ! -e "$work" || { printf '%s\n' "B28 KLD work path exists: $work" >&2; exit 20; }
+mkdir "$work"
+cd "$work"
+ln -s "$sys/amd64/include" machine
+ln -s "$sys/x86/include" x86
+ln -s "$sys/i386/include" i386
+awk -f "$sys/tools/vnode_if.awk" "$sys/kern/vnode_if.src" -p
+awk -f "$sys/tools/vnode_if.awk" "$sys/kern/vnode_if.src" -q
+awk -f "$sys/tools/vnode_if.awk" "$sys/kern/vnode_if.src" -h
+: > opt_global.h
+
+cflags="-O2 -pipe -fno-common -fno-strict-aliasing \
+-D_KERNEL -DKLD_MODULE -nostdinc -include $work/opt_global.h \
+-I$work -I$sys -I$sys/contrib/ck/include -mcmodel=kernel \
+-mno-red-zone -mno-mmx -mno-sse -msoft-float \
+-fno-asynchronous-unwind-tables -ffreestanding -fwrapv \
+-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -fstack-protector \
+-Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith \
+-Wcast-qual -Wundef -Wno-pointer-sign -Wmissing-include-dirs \
+-Wno-unknown-pragmas -Wno-address-of-packed-member \
+-Wno-format-zero-length -mno-aes -mno-avx -std=gnu17 \
+-D__printf__=__freebsd_kprintf__ --target=$target"
+
+for file in super.c inode.c data.c namei.c dir.c xattr.c erofs_vnops.c \
+    decompressor.c zmap.c zdata.c decompressor_lz4.c \
+    decompressor_lzma.c decompressor_deflate.c decompressor_zstd.c; do
+	extra=
+	if test "$file" = decompressor_zstd.c; then
+		extra="-I$sys/contrib/zstd/lib/freebsd"
+		test "$zstdio" = 0 || extra="$extra -DZSTDIO"
+	fi
+	printf 'CC WITH_ZSTDIO=%s %s\n' "$zstdio" "$file"
+	clang $cflags $extra -c "$src/$file" -o "${file%.c}.o"
+done
+
+clang --target="$target" -r -nostdlib ./*.o -o "$output"
+nm -u "$output" | LC_ALL=C sort > B28-nm-u.txt
+nm -g "$output" | LC_ALL=C sort > B28-nm-global.txt
+if ! awk '$NF == "z_erofs_decompress_supports_subextent" { found = 1 } END { exit !found }' \
+    B28-nm-global.txt; then
+	printf '%s\n' 'B28 partial capability symbol is absent' >&2
+	exit 1
+fi
+if ! nm -u "$output" | awk '$NF == "bcmp" { found = 1 } END { exit found }'; then
+	printf '%s\n' 'B28 KLD contains an unresolved bcmp reference' >&2
+	exit 1
+fi
+if test "$zstdio" = 0; then
+	if grep -q ' ZSTD_' B28-nm-u.txt; then
+		printf '%s\n' 'B28 zstdio0 KLD contains an unexpected Zstd symbol' >&2
+		exit 1
+	fi
+else
+	awk '$NF ~ /^ZSTD_/ { print $NF }' B28-nm-u.txt > B28-zstd-symbols.txt
+	printf '%s\n' ZSTD_DCtx_setParameter ZSTD_createDCtx_advanced \
+	    ZSTD_decompressStream ZSTD_freeDCtx ZSTD_isError > B28-zstd-expected.txt
+	if ! cmp B28-zstd-expected.txt B28-zstd-symbols.txt; then
+		printf '%s\n' 'B28 zstdio1 KLD Zstd ABI changed' >&2
+		exit 1
+	fi
+fi