path: root/make_single_applets.sh (plain)
blob: 5b9393e33dcfaa42091e586e2e403b6fb07668b5

1	#!/bin/sh
2	# This script expects that the tree was built with the desired .config:
3	# in particular, it expects that include/applets.h is generated already.
4	#
5	# The script will try to rebuild each enabled applet in isolation.
6	# All other options which chose general bbox config, applet features, etc,
7	# are not modified for the builds.
8
9	makeopts="-j9"
10
11	# The list of all applet config symbols
12	test -f include/applets.h || { echo "No include/applets.h file"; exit 1; }
13	apps="`
14	grep ^IF_ include/applets.h \
15	| grep -v ^IF_FEATURE_ \
16	| sed 's/IF_\([A-Z0-9._-]*\)(.*/\1/' \
17	| grep -v ^MODPROBE_SMALL \
18	| sort | uniq
19	`"
20
21	# Take existing config
22	test -f .config || { echo "No .config file"; exit 1; }
23	cfg="`cat .config`"
24
25	# Make a config with all applet symbols off
26	allno="$cfg"
27	for app in $apps; do
28	allno="`echo "$allno" | sed "s/^CONFIG_${app}=y\$/# CONFIG_${app} is not set/"`"
29	done
30
31	# Turn on each applet individually and build single-applet executable
32	fail=0
33	for app in $apps; do
34	# Only if it was indeed originally enabled...
35	{ echo "$cfg" | grep -q "^CONFIG_${app}=y\$"; } || continue
36
37	echo "Making ${app}..."
38	mv .config .config.SV
39	echo "CONFIG_${app}=y" >.config
40	echo "$allno" | sed "/^# CONFIG_${app} is not set\$/d" >>.config
41	if ! yes '' | make oldconfig >busybox_make_${app}.log 2>&1; then
42	: $((fail++))
43	echo "Config error for ${app}"
44	mv .config busybox_config_${app}
45	elif ! make $makeopts >busybox_make_${app}.log 2>&1; then
46	: $((fail++))
47	echo "Build error for ${app}"
48	mv .config busybox_config_${app}
49	else
50	mv busybox busybox_${app}
51	rm busybox_make_${app}.log
52	fi
53	mv .config.SV .config
54	#exit
55	done
56	echo "Failures: $fail"
57	test $fail = 0 # set exitcode
58