summaryrefslogtreecommitdiff
path: root/Makefile
blob: 232a17d38d51886bed7b3457f5034e6fc694baff (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
# Makefile for busybox
#
# Copyright (C) 1999-2000 Erik Andersen <andersee@debian.org>
# Copyright (C) 2000 Karl M. Hegbloom <karlheg@debian.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#

PROG      := busybox
VERSION   := 0.46
BUILDTIME := $(shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z")
export VERSION

# Set the following to `true' to make a debuggable build.
# Leave this set to `false' for production use.
# eg: `make DODEBUG=true tests'
DODEBUG = false

# If you want a static binary, turn this on.
DOSTATIC = false

# To compile vs an alternative libc, you may need to use/adjust
# the following lines to meet your needs.  This is how I did it...
#GCCINCDIR = $(shell gcc -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp")
#CFLAGS+=-nostdinc -fno-builtin -I/home/andersen/CVS/uC-libc/include -I$(GCCINCDIR)
#LDFLAGS+=-nostdlib
#LIBRARIES = /home/andersen/CVS/uC-libc/libc.a


CC = gcc

# use '-Os' optimization if available, else use -O2
OPTIMIZATION = $(shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
    then echo "-Os"; else echo "-O2" ; fi)


# Allow alternative stripping tools to be used...
ifndef $(STRIPTOOL)
    STRIPTOOL = strip
endif

# -D_GNU_SOURCE is needed because environ is used in init.c
ifeq ($(DODEBUG),true)
    CFLAGS += -Wall -g -D_GNU_SOURCE
    LDFLAGS += 
    STRIP   =
else
    CFLAGS  += -Wall $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE
    LDFLAGS  += -s
    STRIP    = $(STRIPTOOL) --remove-section=.note --remove-section=.comment $(PROG)
    #Only staticly link when _not_ debugging 
    ifeq ($(DOSTATIC),true)
	LDFLAGS += --static
	#
	#use '-ffunction-sections -fdata-sections' and '--gc-sections' if they work
	#to try and strip out any unused junk.  Doesn't do much for me, but you may
	#want to give it a shot...
	#
	#ifeq ($(shell $(CC) -ffunction-sections -fdata-sections -S \
	#	-o /dev/null -xc /dev/null 2>/dev/null && $(LD) --gc-sections -v >/dev/null && echo 1),1)
	#	CFLAGS += -ffunction-sections -fdata-sections
	#	LDFLAGS += --gc-sections
	#endif
    endif
endif

ifndef $(PREFIX)
    PREFIX = `pwd`/_install
endif

OBJECTS   = $(shell ./busybox.sh) busybox.o messages.o utility.o
CFLAGS    += -DBB_VER='"$(VERSION)"'
CFLAGS    += -DBB_BT='"$(BUILDTIME)"'
ifdef BB_INIT_SCRIPT
    CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"'
endif

all: busybox busybox.links doc

doc: olddoc

# Old Docs...
olddoc: docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html

docs/BusyBox.txt: docs/busybox.pod
	@echo
	@echo BusyBox Documentation
	@echo
	- pod2text docs/busybox.pod > docs/BusyBox.txt

docs/BusyBox.1: docs/busybox.pod
	- pod2man --center=BusyBox --release="version $(VERSION)" docs/busybox.pod > docs/BusyBox.1

docs/BusyBox.html: docs/busybox.lineo.com/BusyBox.html
	- rm -f docs/BusyBox.html
	- ln -s busybox.lineo.com/BusyBox.html docs/BusyBox.html

docs/busybox.lineo.com/BusyBox.html: docs/busybox.pod
	- pod2html --noindex docs/busybox.pod > docs/busybox.lineo.com/BusyBox.html
	- rm -f pod2html*


# New docs based on DOCBOOK SGML
newdoc: docs/busybox.txt docs/busybox.pdf docs/busybox/busybox.html

docs/busybox.txt: docs/busybox.sgml
	@echo
	@echo BusyBox Documentation
	@echo
	(cd docs; sgmltools -b txt busybox.sgml)

docs/busybox.dvi: docs/busybox.sgml
	(cd docs; sgmltools -b dvi busybox.sgml)

docs/busybox.ps: docs/busybox.sgml
	(cd docs; sgmltools -b ps busybox.sgml)

docs/busybox.pdf: docs/busybox.ps
	(cd docs; ps2pdf busybox.ps)

docs/busybox/busybox.html: docs/busybox.sgml
	(cd docs/busybox.lineo.com; sgmltools -b html ../busybox.sgml)



busybox: $(OBJECTS)
	$(CC) $(LDFLAGS) -o $@ $^ $(LIBRARIES)
	$(STRIP)

busybox.links: busybox.def.h
	- ./busybox.mkll | sort >$@

nfsmount.o cmdedit.o: %.o: %.h
$(OBJECTS): %.o: busybox.def.h internal.h  %.c Makefile

test tests:
	cd tests && $(MAKE) all

clean:
	- rm -f busybox.links *~ *.o core
	- rm -rf _install
	- cd tests && $(MAKE) clean
	- rm -f docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
	    docs/busybox.lineo.com/BusyBox.html
	- rm -f docs/busybox.txt docs/busybox.dvi docs/busybox.ps \
	    docs/busybox.pdf docs/busybox.lineo.com/busybox.html
	- rm -rf docs/busybox

distclean: clean
	- rm -f busybox
	- cd tests && $(MAKE) distclean

install: busybox busybox.links
	./install.sh $(PREFIX)

dist release: distclean doc
	cd ..;					\
	rm -rf busybox-$(VERSION);		\
	cp -a busybox busybox-$(VERSION);	\
						\
	find busybox-$(VERSION)/ -type d	\
				 -name CVS	\
				 -print		\
		| xargs rm -rf;			\
						\
	find busybox-$(VERSION)/ -type f	\
				 -name .cvsignore \
				 -print		\
		| xargs rm -f;			\
						\
	find busybox-$(VERSION)/ -type f	\
				 -name .\#*	\
				 -print		\
		| xargs rm -f;			\
						\
	tar -cvzf busybox-$(VERSION).tar.gz busybox-$(VERSION)/;

.PHONY: tags
tags:
	ctags -R .