#!/bin/sh
-# Select which libc to build against
-libc="glibc" # assumed native
-# static cross-compiled (i486-linux-uclibc-XXX)
-libc="uclibc"
-
-test -d tree || exit 1
-
-dir=test.$$
-while test -e "$dir" -o -e failed."$dir"; do
- dir=test."$RANDOM"
-done
-
-cp -dpr tree "$dir" || exit 1
-cd "$dir" || exit 1
-
-echo "Running randconfig test in $dir..." >&2
-
-make randconfig >/dev/null || exit 1
-
+# If not specified in environment...
+if ! test "$LIBC"; then
+ # Select which libc to build against
+ LIBC="glibc"
+ LIBC="uclibc"
+fi
+# x86 32-bit:
+#CROSS_COMPILER_PREFIX="i486-linux-uclibc-"
+# My system has strange prefix for x86 64-bit uclibc:
+#CROSS_COMPILER_PREFIX="x86_64-pc-linux-gnu-"
+
+if test $# -lt 2 || ! test -d "$1" || test -e "$2"; then
+ echo "Usage: $0 SRC_DIR TMP_DIR"
+ echo
+ echo "SRC_DIR will be copied to TMP_DIR directory."
+ echo "Then a random build will be performed."
+ echo
+ echo "Useful variables:"
+ echo "\$LIBC, \$CROSS_COMPILER_PREFIX, \$MAKEOPTS"
+ exit 1
+fi
+
+cp -dpr -- "$1" "$2" || { echo "copy error"; exit 1; }
+cd -- "$2" || { echo "cd $dir error"; exit 1; }
+
+# Generate random config
+make randconfig >/dev/null || { echo "randconfig error"; exit 1; }
+
+# Tweak resulting config
cat .config \
-| grep -v ^CONFIG_DEBUG_PESSIMIZE= \
+| grep -v CONFIG_DEBUG_PESSIMIZE \
| grep -v CONFIG_WERROR \
-| cat >.config.new
-mv .config.new .config
-echo CONFIG_WERROR=y >>.config
-
-test "$libc" = glibc && {
-cat .config \
-| grep -v ^CONFIG_SELINUX= \
-| grep -v ^CONFIG_EFENCE= \
-| grep -v ^CONFIG_DMALLOC= \
-| cat >.config.new
-mv .config.new .config
-}
-
-test "$libc" = uclibc && {
-cat .config \
-| grep -v ^CONFIG_SELINUX= \
-| grep -v ^CONFIG_EFENCE= \
-| grep -v ^CONFIG_DMALLOC= \
-| grep -v ^CONFIG_BUILD_LIBBUSYBOX= \
-| grep -v ^CONFIG_PAM= \
-| grep -v ^CONFIG_TASKSET= \
-| grep -v ^CONFIG_FEATURE_ASSUME_UNICODE= \
-| grep -v ^CONFIG_PIE= \
-| grep -v CONFIG_STATIC \
| grep -v CONFIG_CROSS_COMPILER_PREFIX \
-| cat >.config.new
-mv .config.new .config
-echo 'CONFIG_CROSS_COMPILER_PREFIX="i486-linux-uclibc-"' >>.config
-echo 'CONFIG_STATIC=y' >>.config
-}
-
-# If NOMMU, remove some things
-grep -q ^CONFIG_NOMMU= .config && {
-cat .config \
-| grep -v ^CONFIG_ASH= \
-| grep -v ^CONFIG_FEATURE_SH_IS_ASH= \
-| cat >.config.new
+| grep -v CONFIG_SELINUX \
+| grep -v CONFIG_EFENCE \
+| grep -v CONFIG_DMALLOC \
+\
+| grep -v CONFIG_RFKILL \
+>.config.new
mv .config.new .config
-}
-
-# If STATIC, remove some things
+echo '# CONFIG_DEBUG_PESSIMIZE is not set' >>.config
+echo '# CONFIG_WERROR is not set' >>.config
+echo "CONFIG_CROSS_COMPILER_PREFIX=\"${CROSS_COMPILER_PREFIX}\"" >>.config
+echo '# CONFIG_SELINUX is not set' >>.config
+echo '# CONFIG_EFENCE is not set' >>.config
+echo '# CONFIG_DMALLOC is not set' >>.config
+echo '# CONFIG_RFKILL is not set' >>.config
+
+# If glibc, don't build static
+if test x"$LIBC" = x"glibc"; then
+ cat .config \
+ | grep -v CONFIG_STATIC \
+ | grep -v CONFIG_FEATURE_LIBBUSYBOX_STATIC \
+ \
+ | grep -v CONFIG_FEATURE_2_4_MODULES \
+ | grep -v CONFIG_FEATURE_USE_BSS_TAIL \
+ | grep -v CONFIG_DEBUG_SANITIZE \
+ >.config.new
+ mv .config.new .config
+ echo '# CONFIG_STATIC is not set' >>.config
+ echo '# CONFIG_FEATURE_LIBBUSYBOX_STATIC is not set' >>.config
+ # newer glibc (at least 2.23) no longer supply query_module() ABI.
+ # People who target 2.4 kernels would likely use older glibc (and older bbox).
+ echo '# CONFIG_FEATURE_2_4_MODULES is not set' >>.config
+ echo '# CONFIG_FEATURE_USE_BSS_TAIL is not set' >>.config
+ echo '# CONFIG_DEBUG_SANITIZE is not set' >>.config
+fi
+
+# If uclibc, build static, and remove some things
+# likely to not work on uclibc.
+if test x"$LIBC" = x"uclibc"; then
+ cat .config \
+ | grep -v CONFIG_STATIC \
+ | grep -v CONFIG_BUILD_LIBBUSYBOX \
+ | grep -v CONFIG_PIE \
+ \
+ | grep -v CONFIG_FEATURE_2_4_MODULES \
+ | grep -v CONFIG_FEATURE_SYNC_FANCY \
+ | grep -v CONFIG_FEATURE_TOUCH_NODEREF \
+ | grep -v CONFIG_NANDWRITE \
+ | grep -v CONFIG_NANDDUMP \
+ | grep -v CONFIG_BLKDISCARD \
+ | grep -v CONFIG_NSENTER \
+ | grep -v CONFIG_UNSHARE \
+ | grep -v CONFIG_FALLOCATE \
+ | grep -v CONFIG_UDHCPC6 \
+ | grep -v CONFIG_ASH_INTERNAL_GLOB \
+ >.config.new
+ mv .config.new .config
+ echo 'CONFIG_STATIC=y' >>.config
+ echo '# CONFIG_BUILD_LIBBUSYBOX is not set' >>.config
+ echo '# CONFIG_PIE is not set' >>.config
+ echo '# CONFIG_FEATURE_2_4_MODULES is not set' >>.config
+ echo '# CONFIG_FEATURE_SYNC_FANCY is not set' >>.config
+ echo '# CONFIG_FEATURE_TOUCH_NODEREF is not set' >>.config
+ # My uclibc installation does not support some needed APIs...
+ echo '# CONFIG_NANDWRITE is not set' >>.config
+ echo '# CONFIG_NANDDUMP is not set' >>.config
+ echo '# CONFIG_BLKDISCARD is not set' >>.config
+ echo '# CONFIG_NSENTER is not set' >>.config
+ echo '# CONFIG_UNSHARE is not set' >>.config
+ echo '# CONFIG_FALLOCATE is not set' >>.config
+ echo '# CONFIG_UDHCPC6 is not set' >>.config
+ echo 'CONFIG_ASH_INTERNAL_GLOB=y' >>.config
+fi
+
+# If STATIC, remove some things.
# PAM with static linking is probably pointless
# (but I need to try - now I don't have libpam.a on my system, only libpam.so)
-grep -q ^CONFIG_STATIC= .config && {
-cat .config \
-| grep -v ^CONFIG_PAM= \
-| cat >.config.new
-mv .config.new .config
-}
-
-# CONFIG_NOMMU + CONFIG_HUSH + CONFIG_WERROR don't mix
-# (produces warning)
-grep -q ^CONFIG_NOMMU= .config && \
-grep -q ^CONFIG_HUSH= .config && \
-{
-cat .config \
-| grep -v ^CONFIG_WERROR= \
-| cat >.config.new
-mv .config.new .config
-}
+if grep -q "^CONFIG_STATIC=y" .config; then
+ cat .config \
+ | grep -v CONFIG_PAM \
+ >.config.new
+ mv .config.new .config
+ echo '# CONFIG_PAM is not set' >>.config
+fi
# Regenerate .config with default answers for yanked-off options
-{ yes "" | make oldconfig >/dev/null; } || exit 1
-
-nice -n 10 make
+# (most of default answers are "no").
+{ yes "" | make oldconfig >/dev/null; } || { echo "oldconfig error"; exit 1; }
-test -x busybox && {
- cd ..
- rm -rf "$dir"
- exit 0
-}
+# Build!
+nice -n 10 make $MAKEOPTS 2>&1 | tee make.log
+grep 'Rerun make' make.log \
+&& nice -n 10 make $MAKEOPTS 2>&1 | tee -a make.log
-cd ..
-mv "$dir" failed."$dir"
-exit 1
+# Return exitcode 1 if busybox executable does not exist
+test -x busybox