comparison Makefile @ 233:d4176f3f3835

Zap toys/Config.in and instead create generated/Config.in from contents of toys/*.c. Move relevant info into comment at the top of each toys/*.c. Also convert more of Makefile into a thin wrapper around shell scripts that actually do the work. (Makefile is only still there for the user interface.)
author Rob Landley <rob@landley.net>
date Sat, 19 Jan 2008 17:08:39 -0600
parents cd4d5630c978
children 163498bf547b
comparison
equal deleted inserted replaced
232:cd4d5630c978 233:d4176f3f3835
1 # Makefile for toybox. 1 # Makefile for toybox.
2 # Copyright 2006 Rob Landley <rob@landley.net> 2 # Copyright 2006 Rob Landley <rob@landley.net>
3 3
4 CFLAGS := $(CFLAGS) -Wall -Wundef -Wno-char-subscripts
5 CCFLAGS = $(CFLAGS) -funsigned-char
6 OPTIMIZE = -Os -ffunction-sections -fdata-sections -Wl,--gc-sections
7 CC = $(CROSS_COMPILE)gcc
8 STRIP = $(CROSS_COMPILE)strip
9 HOSTCC = gcc
10
11 # A synonym.
12 CROSS_COMPILE = $(CROSS)
13
14 all: toybox 4 all: toybox
15 5
16 .PHONY: clean distclean baseline bloatcheck install_flat test tests help 6 toybox toybox_unstripped:
7 scripts/make.sh
8
9 .PHONY: clean distclean baseline bloatcheck install_flat test tests help \
10 toybox toybox_unstripped
17 11
18 include kconfig/Makefile 12 include kconfig/Makefile
19 13
20 # defconfig is the "maximum sane config"; allyesconfig minus debugging and such. 14 $(KCONFIG_TOP): generated/Config.in
21 #defconfig: allyesconfig 15 generated/Config.in:
22 # @sed -i -r -e "s/^(CONFIG_TOYBOX_(DEBUG|FREE))=.*/# \1 is not set/" .config 16 scripts/genconfig.sh
23 17
24 .config: Config.in toys/Config.in 18 HOSTCC:=cc
25
26 # The long and roundabout sed is to make old versions of sed happy. New ones
27 # have '\n' so can replace one line with two without all the branches and
28 # mucking about with hold space.
29 generated/gen_config.h: .config
30 sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \
31 -e 't notset' -e 'b tryisset' -e ':notset' \
32 -e 'h' -e 's/.*/#define CFG_& 0/p' \
33 -e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \
34 -e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \
35 -e 'h' -e 's/.*/#define CFG_& 1/p' \
36 -e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' $< > $@
37 19
38 # Development targets 20 # Development targets
39 baseline: toybox_unstripped 21 baseline: toybox_unstripped
40 @cp toybox_unstripped toybox_old 22 @cp toybox_unstripped toybox_old
41 23
42 bloatcheck: toybox_old toybox_unstripped 24 bloatcheck: toybox_old toybox_unstripped
43 @scripts/bloat-o-meter toybox_old toybox_unstripped 25 @scripts/bloat-o-meter toybox_old toybox_unstripped
44
45 # Get list of .c files to compile, including toys/*.c files from .config
46 toyfiles = main.c lib/*.c \
47 $(shell scripts/cfg2files.sh < .config | sed 's@\(.*\)@toys/\1.c@')
48
49 # The following still depends on generated/help.h even when it's not there, so
50 # *.h isn't sufficient by itself.
51
52 toybox_unstripped: generated/gen_config.h generated/help.h $(toyfiles) toys/toylist.h toys/*.h lib/*.h toys.h
53 $(CC) $(CCFLAGS) -I . $(toyfiles) -o toybox_unstripped $(OPTIMIZE)
54
55 toybox: toybox_unstripped
56 $(STRIP) toybox_unstripped -o toybox
57
58 toys/help.c: generated/help.h
59
60 generated/help.h: Config.in toys/Config.in scripts/config2help.py
61 scripts/config2help.py Config.in > generated/help.h
62 26
63 instlist: toybox 27 instlist: toybox
64 $(HOSTCC) $(CCFLAGS) -I . scripts/install.c -o instlist 28 $(HOSTCC) $(CCFLAGS) -I . scripts/install.c -o instlist
65 29
66 install_flat: instlist 30 install_flat: instlist
67 @mkdir -p $(PREFIX)/ 31 @mkdir -p $(PREFIX)/
68 @cp toybox $(PREFIX)/ 32 @cp toybox $(PREFIX)/
69 @for i in `./instlist`; do ln -s toybox "$(PREFIX)/$$i"; done 33 @for i in `./instlist`; do ln -s toybox "$(PREFIX)/$$i"; done
70 34
71 clean:: 35 clean::
72 rm -f toybox toybox_unstripped generated/gen_config.h instlist 36 rm -f toybox toybox_unstripped generated/config.h generated/Config.in \
37 instlist
73 38
74 distclean: clean 39 distclean: clean
75 rm -f toybox_old .config* generated/help.h 40 rm -f toybox_old .config* generated/help.h
76 41
77 test: tests 42 test: tests
78 43
79 tests: 44 tests:
80 scripts/testall.sh 45 scripts/testall.sh
81 46
82 help:: 47 help::
48 @echo ' toybox - Build toybox.'
83 @echo ' baseline - Create busybox_old for use by bloatcheck.' 49 @echo ' baseline - Create busybox_old for use by bloatcheck.'
84 @echo ' bloatcheck - Report size differences between old and current versions' 50 @echo ' bloatcheck - Report size differences between old and current versions'
51 @echo ' test - Run test suite against compiled commands.'
52 @echo ' clean - Delete temporary files.'
53 @echo ' distclean - Delete everything that isn't shipped.'
54 @echo ' install_flat - Install toybox into $PREFIX directory.'