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# Makefile for busybox
#
# Copyright (C) 1999,2000,2001 Erik Andersen <andersee@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 := 0.49
BUILDTIME := $(shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z")
export VERSION
# With a modern GNU make(1) (highly recommended, that's what all the
# developers use), all of the following configuration values can be
# overridden at the command line. For example:
# make CROSS=powerpc-linux- BB_SRC_DIR=$HOME/busybox PREFIX=/mnt/app
# If you want to add some simple compiler switches (like -march=i686),
# especially from the command line, use this instead of CFLAGS directly.
# For optimization overrides, it's better still to set OPTIMIZATION.
CFLAGS_EXTRA =
# If you want a static binary, turn this on.
DOSTATIC = false
# Set the following to `true' to make a debuggable build.
# Leave this set to `false' for production use.
# eg: `make DODEBUG=true tests'
# Do not enable this for production builds...
DODEBUG = false
# Setting this to `true' will cause busybox to directly use the system's
# password and group functions. Assuming you use GNU libc, when this is
# `true', you will need to install the /etc/nsswitch.conf configuration file
# and the required libnss_* libraries. This generally makes your embedded
# system quite a bit larger... If you leave this off, busybox will directly
# use the /etc/password, /etc/group files (and your system will be smaller, and
# I will get fewer emails asking about how glibc NSS works). Enabling this adds
# just 1.4k to the binary size (which is a _lot_ less then glibc NSS costs),
# Most people will want to leave this set to false.
USE_SYSTEM_PWD_GRP = false
# This enables compiling with dmalloc ( http://dmalloc.com/ )
# which is an excellent public domain mem leak and malloc problem
# detector. To enable dmalloc, before running busybox you will
# want to first set up your environment.
# eg: `export DMALLOC_OPTIONS=debug=0x14f47d83,inter=100,log=logfile`
# Do not enable this for production builds...
DODMALLOC = false
# If you want large file summit support, turn this on.
# This has no effect if you don't have a kernel with lfs
# support, and a system with libc-2.1.3 or later.
# Some of the programs that can benefit from lfs support
# are dd, gzip, mount, tar, and mkfs_minix.
# LFS allows you to use the above programs for files
# larger than 2GB!
DOLFS = false
# If you have a "pristine" source directory, point BB_SRC_DIR to it.
# Experimental and incomplete; tell the mailing list
# <busybox@opensource.lineo.com> if you do or don't like it so far.
BB_SRC_DIR = .
# If you are running a cross compiler, you may want to set this
# to something more interesting, like "powerpc-linux-".
CROSS =
CC = $(CROSS)gcc
STRIPTOOL = $(CROSS)strip
# To compile vs uClibc, just use the compiler wrapper built by uClibc...
# Isn't that easy? Right now, uClibc needs BB_FEATURE_NFSMOUNT disabled
# since uClibc's nfs support isn't ready yet.
#CC = ../uClibc/extra/gcc-uClibc/gcc-uClibc-i386
# To compile vs some other alternative libc, you may need to use/adjust
# the following lines to meet your needs...
#LIBCDIR=/usr/i486-linuxlibc1/
#LDFLAGS+=-nostdlib
#LIBRARIES = $(LIBCDIR)/libc.a -lgcc
#CROSS_CFLAGS+=-nostdinc -I$(LIBCDIR)/include -I$(GCCINCDIR)
#GCCINCDIR = $(shell gcc -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp")
#--------------------------------------------------------
# use '-Os' optimization if available, else use -O2
OPTIMIZATION = $(shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
then echo "-Os"; else echo "-O2" ; fi)
WARNINGS = -Wall
ifeq ($(DOLFS),true)
# For large file summit support
CFLAGS+=-D_FILE_OFFSET_BITS=64
endif
ifeq ($(DODMALLOC),true)
# For testing mem leaks with dmalloc
CFLAGS+=-DDMALLOC
LIBRARIES = -ldmalloc
# Force debug=true, since this is useless when not debugging...
DODEBUG = true
endif
ifeq ($(DODEBUG),true)
CFLAGS += $(WARNINGS) -g -D_GNU_SOURCE
LDFLAGS += -Wl,-warn-common
STRIP =
else
CFLAGS += $(WARNINGS) $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE
LDFLAGS += -s -Wl,-warn-common
STRIP = $(STRIPTOOL) --remove-section=.note --remove-section=.comment $(PROG)
endif
ifeq ($(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
ifndef $(PREFIX)
PREFIX = `pwd`/_install
endif
# Additional complications due to support for pristine source dir.
# Config.h in the build directory should take precedence over the
# copy in BB_SRC_DIR, both during the compilation phase and the
# shell script that finds the list of object files.
#
# Work in progress by <ldoolitt@recycle.lbl.gov>.
# If it gets in your way, set DISABLE_VPATH=yes
ifeq ($(DISABLE_VPATH),yes)
CONFIG_H = Config.h
else
VPATH = .:$(BB_SRC_DIR)
CONFIG_LIST = $(addsuffix /Config.h,$(subst :, ,$(VPATH)))
CONFIG_H = $(word 1,$(shell ls -f -1 $(CONFIG_LIST) 2>/dev/null))
CFLAGS += -I- $(patsubst %,-I%,$(subst :, ,$(VPATH))) $(CROSS_CFLAGS)
endif
OBJECTS = $(shell $(BB_SRC_DIR)/busybox.sh $(CONFIG_H) $(BB_SRC_DIR)) busybox.o messages.o usage.o utility.o
CFLAGS += -DBB_VER='"$(VERSION)"'
CFLAGS += -DBB_BT='"$(BUILDTIME)"'
ifdef BB_INIT_SCRIPT
CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"'
endif
ifneq ($(USE_SYSTEM_PWD_GRP),true)
PWD_LIB = pwd_grp/libpwd.a
LIBRARIES += $(PWD_LIB)
else
CFLAGS += -DUSE_SYSTEM_PWD_GRP
endif
# Put user-supplied flags at the end, where they
# have a chance of winning.
CFLAGS += $(CFLAGS_EXTRA)
.EXPORT_ALL_VARIABLES:
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
-mkdir -p docs
-pod2text $(BB_SRC_DIR)/docs/busybox.pod > docs/BusyBox.txt
docs/BusyBox.1: docs/busybox.pod
- mkdir -p docs
- pod2man --center=BusyBox --release="version $(VERSION)" \
$(BB_SRC_DIR)/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
-@ mkdir -p docs/busybox.lineo.com
- pod2html --noindex $(BB_SRC_DIR)/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/busyboxdocumentation.html
docs/busybox.txt: docs/busybox.sgml
@echo
@echo BusyBox Documentation
@echo
- mkdir -p docs
(cd docs; sgmltools -b txt busybox.sgml)
docs/busybox.dvi: docs/busybox.sgml
- mkdir -p docs
(cd docs; sgmltools -b dvi busybox.sgml)
docs/busybox.ps: docs/busybox.sgml
- mkdir -p docs
(cd docs; sgmltools -b ps busybox.sgml)
docs/busybox.pdf: docs/busybox.ps
- mkdir -p docs
(cd docs; ps2pdf busybox.ps)
docs/busybox/busyboxdocumentation.html: docs/busybox.sgml
- mkdir -p docs
(cd docs/busybox.lineo.com; sgmltools -b html ../busybox.sgml)
busybox: $(PWD_LIB) $(OBJECTS)
$(CC) $(LDFLAGS) -o $@ $^ $(LIBRARIES)
$(STRIP)
$(PWD_LIB):
$(MAKE) -eC pwd_grp
busybox.links: Config.h applets.h
- $(BB_SRC_DIR)/busybox.mkll $(CONFIG_H) $(BB_SRC_DIR)/applets.h >$@
nfsmount.o cmdedit.o: %.o: %.h
$(OBJECTS): %.o: %.c Config.h busybox.h applets.h Makefile
$(CC) $(CFLAGS) -c $*.c -o $*.o
utility.o: loop.h
loop.h: mk_loop_h.sh
@ sh $<
test tests:
cd tests && $(MAKE) all
clean:
- cd tests && $(MAKE) clean
- cd pwd_grp && $(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 -f Config.h.ORG bb.def.h busybox.REGRESS.sh.results bb.OptionsAndFeatures
- rm -rf docs/busybox _install
- rm -f busybox.links loop.h *~ *.o core
distclean: clean
- rm -f busybox
- cd tests && $(MAKE) distclean
install: busybox busybox.links
$(BB_SRC_DIR)/install.sh $(PREFIX)
install-hardlinks: busybox busybox.links
$(BB_SRC_DIR)/install.sh $(PREFIX) --hardlinks
debug_pristine:
@ echo VPATH=\"$(VPATH)\"
@ echo CONFIG_LIST=\"$(CONFIG_LIST)\"
@ echo CONFIG_H=\"$(CONFIG_H)\"
@ echo OBJECTS=\"$(OBJECTS)\"
dist release: distclean doc
cd ..; \
rm -rf busybox-$(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 .