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/' \
17 | grep -v '^BUSYBOX$' \
21 # Take existing config
22 test -f .config || { echo "No .config file"; exit 1; }
25 # Make a config with all applet symbols off
28 allno="`echo "$allno" | sed "s/^CONFIG_${app}=y\$/# CONFIG_${app} is not set/"`"
30 # remove "busybox" as well
31 allno="`echo "$allno" | sed "s/^CONFIG_BUSYBOX=y\$/# CONFIG_BUSYBOX is not set/"`"
32 #echo "$allno" >.config_allno
34 trap 'test -f .config.SV && mv .config.SV .config && touch .config' EXIT
37 # Turn on each applet individually and build single-applet executable
38 # (give config names on command line to build only those)
39 test $# = 0 && set -- $apps
42 # Only if it was indeed originally enabled...
43 { echo "$cfg" | grep -q "^CONFIG_${app}=y\$"; } || continue
45 echo "Making ${app}..."
47 echo "CONFIG_${app}=y" >.config
48 echo "$allno" | sed "/^# CONFIG_${app} is not set\$/d" >>.config
50 if test x"${app}" != x"SH_IS_ASH" && test x"${app}" != x"SH_IS_HUSH"; then
51 # $allno has all choices for "sh" aliasing set to off.
52 # "sh" aliasing defaults to "ash", not none.
53 # without this fix, "make oldconfig" sets it wrong,
54 # resulting in NUM_APPLETS = 2 (the second applet is "sh")
55 sed '/CONFIG_SH_IS_NONE/d' -i .config
56 echo "CONFIG_SH_IS_NONE=y" >>.config
59 if ! yes '' | make oldconfig >busybox_make_${app}.log 2>&1; then
61 echo "Config error for ${app}"
62 mv .config busybox_config_${app}
63 elif ! make $makeopts >>busybox_make_${app}.log 2>&1; then
65 grep -i -e error: -e warning: busybox_make_${app}.log
66 echo "Build error for ${app}"
67 mv .config busybox_config_${app}
68 elif ! grep -q '^#define NUM_APPLETS 1$' include/NUM_APPLETS.h; then
69 grep -i -e error: -e warning: busybox_make_${app}.log
70 mv busybox busybox_${app}
72 echo "NUM_APPLETS != 1 for ${app}: `cat include/NUM_APPLETS.h`"
73 mv .config busybox_config_${app}
75 if grep -q 'use larger COMMON_BUFSIZE' busybox_make_${app}.log; then
76 # FEATURE_USE_BSS_TAIL=y is selected, and build system
77 # recommends rebuilding. Do so, and print some
78 # debug info to see whether it works right:
79 tail -n1 busybox_make_${app}.log
80 nm busybox_unstripped | grep ' _end'
82 nm busybox_unstripped | grep ' _end'
83 grep ^bb_common_bufsiz1 busybox_unstripped.map
85 grep -i -e error: -e warning: busybox_make_${app}.log \
86 || rm busybox_make_${app}.log
87 mv busybox busybox_${app}
88 #mv .config busybox_config_${app}
93 touch .config # or else next "make" can be confused
94 echo "Failures: $fail"
95 test $fail = 0 # set exitcode