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.
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.
11 # The list of all applet config symbols
12 test -f include/applets.h || { echo "No include/applets.h file"; exit 1; }
14 grep ^IF_ include/applets.h \
15 | grep -v ^IF_FEATURE_ \
16 | sed 's/IF_\([A-Z0-9._-]*\)(.*/\1/' \
20 # Take existing config
21 test -f .config || { echo "No .config file"; exit 1; }
24 # Make a config with all applet symbols off
27 allno="`echo "$allno" | sed "s/^CONFIG_${app}=y\$/# CONFIG_${app} is not set/"`"
29 #echo "$allno" >.config_allno
31 # Turn on each applet individually and build single-applet executable
34 # Only if it was indeed originally enabled...
35 { echo "$cfg" | grep -q "^CONFIG_${app}=y\$"; } || continue
37 echo "Making ${app}..."
39 echo "CONFIG_${app}=y" >.config
40 echo "$allno" | sed "/^# CONFIG_${app} is not set\$/d" >>.config
42 if test x"${app}" != x"SH_IS_ASH" && test x"${app}" != x"SH_IS_HUSH"; then
43 # $allno has all choices for "sh" aliasing set to off.
44 # "sh" aliasing defaults to "ash", not none.
45 # without this fix, "make oldconfig" sets it wrong,
46 # resulting in NUM_APPLETS = 2 (the second applet is "sh")
47 sed '/CONFIG_SH_IS_NONE/d' -i .config
48 echo "CONFIG_SH_IS_NONE=y" >>.config
51 if ! yes '' | make oldconfig >busybox_make_${app}.log 2>&1; then
53 echo "Config error for ${app}"
54 mv .config busybox_config_${app}
55 elif ! make $makeopts >>busybox_make_${app}.log 2>&1; then
57 echo "Build error for ${app}"
58 mv .config busybox_config_${app}
59 elif ! grep -q '^#define NUM_APPLETS 1$' include/NUM_APPLETS.h; then
60 mv busybox busybox_${app}
62 echo "NUM_APPLETS != 1 for ${app}: `cat include/NUM_APPLETS.h`"
63 mv .config busybox_config_${app}
65 mv busybox busybox_${app}
66 rm busybox_make_${app}.log
71 touch .config # or else next "make" can be confused
72 echo "Failures: $fail"
73 test $fail = 0 # set exitcode