Makefile revision bcfad872188d993efc8d1da4b79058b69e43f019 
1# Makefile for toybox.
2# Copyright 2006 Rob Landley <rob@landley.net>
3
4CFLAGS  = -Wall -Wundef -Wno-char-subscripts -Os
5CC      = $(CROSS_COMPILE)gcc $(CFLAGS) -funsigned-char
6STRIP   = $(CROSS_COMPILE)strip
7HOST_CC = gcc $(CFLAGS) -funsigned-char
8
9all: toybox
10
11.PHONY: clean
12
13include kconfig/Makefile
14
15.config: Config.in toys/Config.in
16
17# The long and roundabout sed is to make old versions of sed happy.  New ones
18# have '\n' so can replace one line with two without all the branches and
19# mucking about with hold space.
20gen_config.h: .config
21	sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \
22	  -e 't notset' -e 'b tryisset' -e ':notset' \
23	  -e 'h' -e 's/.*/#define CFG_& 0/p' \
24	  -e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \
25	  -e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \
26	  -e 'h' -e 's/.*/#define CFG_& 1/p' \
27	  -e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' $< > $@
28
29# Development targets
30baseline: toybox_unstripped
31	@cp toybox_unstripped toybox_old
32
33bloatcheck: toybox_old toybox_unstripped
34	@scripts/bloat-o-meter toybox_old toybox_unstripped
35
36# Actual build
37
38toyfiles = main.c toys/*.c lib/*.c
39toybox_unstripped: gen_config.h $(toyfiles) toys/toylist.h lib/lib.h toys.h
40	$(CC) $(CFLAGS) -I . $(toyfiles) -o toybox_unstripped \
41		-ffunction-sections -fdata-sections -Wl,--gc-sections #\
42		#2>&1 | sed -n -e '/may be used uninitialized/{s/.*/\n/;h;b};1{x;b};: print;=;p;x;/\n/b thing;p;: thing;${x;p}' >&2
43
44toybox: toybox_unstripped
45	$(STRIP) toybox_unstripped -o toybox
46
47instlist: toybox
48	$(HOST_CC) -I . scripts/install.c -o instlist
49
50install_flat: instlist
51	@mkdir -p $(PREFIX)/
52	@cp toybox $(PREFIX)/
53	@for i in `./instlist`; do ln -s toybox "$(PREFIX)/$$i"; done
54
55clean::
56	rm -f toybox toybox_old toybox_unstripped gen_config.h instlist
57
58distclean: clean
59	rm -f .config*
60
61help::
62	@echo  '  baseline        - Create busybox_old for use by bloatcheck.'
63	@echo  '  bloatcheck      - Report size differences between old and current versions'
64