# Makefile for busybox
#
-# Copyright (C) 1999-2000 Erik Andersen <andersee@debian.org>
-# Copyright (C) 2000 Karl M. Hegbloom <karlheg@debian.org>
+# 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
#
PROG := busybox
-VERSION := 0.48pre
+VERSION := 0.50pre
BUILDTIME := $(shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z")
export VERSION
# overridden at the command line. For example:
# make CROSS=powerpc-linux- BB_SRC_DIR=$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
# 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
# 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 = .
+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
+AR = $(CROSS)ar
STRIPTOOL = $(CROSS)strip
-# To compile vs an alternative libc, you may need to use/adjust
-# the following lines to meet your needs. This is how I make
-# busybox compile with uC-Libc...
-#LIBCDIR=/home/andersen/CVS/uC-libc
-#GCCINCDIR = $(shell gcc -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp")
-#CFLAGS+=-nostdinc -I$(LIBCDIR)/include -I$(GCCINCDIR)
-#LDFLAGS+=-nostdlib
-#LIBRARIES = $(LIBCDIR)/libc.a -lgcc
+# To compile vs uClibc, just use the compiler wrapper built by uClibc...
+# This make things very easy? Everything should compile and work as
+# expected these days...
+#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...
+#
+# If you are using Red Hat 6.x with the compatible RPMs (for developing under
+# Red Hat 5.x and glibc 2.0) uncomment the following. Be sure to read about
+# using the compatible RPMs (compat-*) at http://www.redhat.com !
+#LIBCDIR=/usr/i386-glibc20-linux
+#
+# The following is used for libc5 (if you install altgcc and libc5-altdev
+# on a Debian system).
+#LIBCDIR=/usr/i486-linuxlibc1
+#
+# For other libraries, you are on your own...
+#LDFLAGS+=-nostdlib
+#LIBRARIES = $(LIBCDIR)/lib/libc.a -lgcc
+#CROSS_CFLAGS+=-nostdinc -I$(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; \
+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)
+#
+#--------------------------------------------------------
+# If you're going to do a lot of builds with a non-vanilla configuration,
+# it makes sense to adjust parameters above, so you can type "make"
+# by itself, instead of following it by the same half-dozen overrides
+# every time. The stuff below, on the other hand, is probably less
+# prone to casual user adjustment.
+#
+
+ifeq ($(strip $(DOLFS)),true)
# For large file summit support
CFLAGS+=-D_FILE_OFFSET_BITS=64
endif
-ifeq ($(DODMALLOC),true)
+ifeq ($(strip $(DODMALLOC)),true)
# For testing mem leaks with dmalloc
CFLAGS+=-DDMALLOC
LIBRARIES = -ldmalloc
# Force debug=true, since this is useless when not debugging...
DODEBUG = true
endif
-# -D_GNU_SOURCE is needed because environ is used in init.c
-ifeq ($(DODEBUG),true)
- CFLAGS += $(WARNINGS) -g -D_GNU_SOURCE
- LDFLAGS +=
- STRIP =
+ifeq ($(strip $(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
+ LDFLAGS += -s -Wl,-warn-common
STRIP = $(STRIPTOOL) --remove-section=.note --remove-section=.comment $(PROG)
endif
-ifeq ($(DOSTATIC),true)
+ifeq ($(strip $(DOSTATIC)),true)
LDFLAGS += --static
#
#use '-ffunction-sections -fdata-sections' and '--gc-sections' (if they
endif
# Additional complications due to support for pristine source dir.
-# Config.h in the build directory should take precedence over the
-# copy in BB_SRC_DIR, both during the compilation phase and the
+# Include files in the build directory should take precedence over
+# the copy in BB_SRC_DIR, both during the compilation phase and the
# shell script that finds the list of object files.
-#
# Work in progress by <ldoolitt@recycle.lbl.gov>.
-# If it gets in your way, set DISABLE_VPATH=yes
-ifeq ($(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 :, ,$(VPATH)))
+#
+ifneq ($(strip $(BB_SRC_DIR)),)
+ VPATH = $(BB_SRC_DIR)
endif
-
-OBJECTS = $(shell $(BB_SRC_DIR)/busybox.sh $(CONFIG_H) $(BB_SRC_DIR)) busybox.o messages.o usage.o utility.o
+#ifneq ($(strip $(VPATH)),)
+# CFLAGS += -I- -I. $(patsubst %,-I%,$(subst :, ,$(VPATH)))
+#endif
+
+# We need to set APPLET_SOURCES to something like
+# $(shell busybox.sh Config.h)
+# but in a manner that works with VPATH and BB_SRC_DIR.
+# Possible ways to approach this:
+#
+# 1. Explicitly search through .:$(VPATH) for busybox.sh and config.h,
+# then $(shell $(BUSYBOX_SH) $(CONFIG_H) $(BB_SRC_DIR))
+#
+# 2. Explicity search through .:$(VPATH) for slist.mk,
+# then $(shell $(MAKE) -f $(SLIST_MK) VPATH=$(VPATH) BB_SRC_DIR=$(BB_SRC_DIR))
+#
+# 3. Create slist.mk in this directory, with commands embedded in
+# a $(shell ...) command, and $(MAKE) it immediately.
+#
+# 4. Use a real rule within this makefile to create a file that sets
+# APPLET_SOURCE_LIST, then include that file. Has complications
+# with the first trip through the makefile (before processing the
+# include) trying to do too much, and a spurious warning the first
+# time make is run.
+#
+# This is option 3:
+#
+#APPLET_SOURCES = $(shell \
+# echo -e 'all: busybox.sh Config.h\n\t@ $$(SHELL) $$^ $$(BB_SRC_DIR)' >slist.mk; \
+# make -f slist.mk VPATH=$(VPATH) BB_SRC_DIR=$(BB_SRC_DIR) \
+#)
+# And option 4:
+-include applet_source_list
+
+OBJECTS = $(APPLET_SOURCES:.c=.o) busybox.o messages.o usage.o utility.o
+CFLAGS += $(CROSS_CFLAGS)
CFLAGS += -DBB_VER='"$(VERSION)"'
CFLAGS += -DBB_BT='"$(BUILDTIME)"'
ifdef BB_INIT_SCRIPT
CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"'
endif
+ifneq ($(strip $(USE_SYSTEM_PWD_GRP)),true)
+ PWD_GRP = pwd_grp
+ PWD_GRP_DIR = $(BB_SRC_DIR)$(PWD_GRP)
+ PWD_LIB = libpwd.a
+ PWD_CSRC=__getpwent.c pwent.c getpwnam.c getpwuid.c putpwent.c getpw.c \
+ fgetpwent.c __getgrent.c grent.c getgrnam.c getgrgid.c fgetgrent.c \
+ initgroups.c setgroups.c
+ PWD_OBJS=$(patsubst %.c,$(PWD_GRP)/%.o, $(PWD_CSRC))
+ PWD_CFLAGS = -I$(PWD_GRP_DIR)
+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
+all: applet_source_list busybox busybox.links doc
+
+applet_source_list: busybox.sh Config.h
+ (echo -n "APPLET_SOURCES := "; $(SHELL) $^ $(BB_SRC_DIR)) > $@
doc: olddoc
@echo
@echo BusyBox Documentation
@echo
- - mkdir -p docs
- - (cd $(BB_SRC_DIR); pod2text docs/busybox.pod) > docs/BusyBox.txt
+ -mkdir -p docs
+ -pod2text $< > $@
docs/BusyBox.1: docs/busybox.pod
- mkdir -p docs
- - (cd $(BB_SRC_DIR); pod2man --center=BusyBox \
- --release="version $(VERSION)" \
- docs/busybox.pod ) > docs/BusyBox.1
+ - pod2man --center=BusyBox --release="version $(VERSION)" \
+ $< > $@
docs/BusyBox.html: docs/busybox.lineo.com/BusyBox.html
+ - mkdir -p docs
-@ rm -f docs/BusyBox.html
- -@ ln -s docs/busybox.lineo.com/BusyBox.html 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
- - (cd $(BB_SRC_DIR); pod2html --noindex docs/busybox.pod ) \
- > docs/busybox.lineo.com/BusyBox.html
+ - pod2html --noindex $< > \
+ docs/busybox.lineo.com/BusyBox.html
-@ rm -f pod2html*
@echo BusyBox Documentation
@echo
- mkdir -p docs
- (cd docs; sgmltools -b txt $(BB_SRC_DIR)/busybox.sgml)
+ (cd docs; sgmltools -b txt busybox.sgml)
docs/busybox.dvi: docs/busybox.sgml
- mkdir -p docs
- (cd docs; sgmltools -b dvi $(BB_SRC_DIR)/busybox.sgml)
+ (cd docs; sgmltools -b dvi busybox.sgml)
docs/busybox.ps: docs/busybox.sgml
- mkdir -p docs
- (cd docs; sgmltools -b ps $(BB_SRC_DIR)/busybox.sgml)
+ (cd docs; sgmltools -b ps busybox.sgml)
docs/busybox.pdf: docs/busybox.ps
- mkdir -p docs
- (cd docs; ps2pdf $(BB_SRC_DIR)/busybox.ps)
+ (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: $(OBJECTS)
- $(CC) $(LDFLAGS) -o $@ $^ $(LIBRARIES)
+busybox: $(PWD_LIB) $(OBJECTS)
+ $(CC) $(LDFLAGS) -o $@ $(OBJECTS) $(LIBRARIES) $(PWD_LIB)
$(STRIP)
-busybox.links: Config.h
- -$(BB_SRC_DIR)/busybox.mkll $(BB_SRC_DIR)applets.h | sort >$@
+# Without VPATH, rule expands to "/bin/sh busybox.mkll Config.h applets.h"
+# but with VPATH, some or all of those file names are resolved to the
+# directories in which they live.
+busybox.links: busybox.mkll Config.h applets.h
+ - $(SHELL) $^ >$@
nfsmount.o cmdedit.o: %.o: %.h
-$(OBJECTS): %.o: %.c Config.h busybox.h Makefile
+$(OBJECTS): %.o: %.c Config.h busybox.h applets.h Makefile
+ $(CC) -I- $(CFLAGS) -I. $(patsubst %,-I%,$(subst :, ,$(BB_SRC_DIR))) -c $< -o $*.o
+
+$(PWD_OBJS): %.o: %.c Config.h busybox.h applets.h Makefile
+ - mkdir -p $(PWD_GRP)
+ $(CC) $(CFLAGS) $(PWD_CFLAGS) -c $< -o $*.o
+
+libpwd.a: $(PWD_OBJS)
+ $(AR) $(ARFLAGS) $@ $^
+
+usage.o: usage.h
utility.o: loop.h
loop.h: mk_loop_h.sh
- @ sh $<
+ @ $(SHELL) $< > $@
test tests:
cd tests && $(MAKE) all
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 _install
- - rm -f busybox.links loop.h *~ *.o core
+ - rm -f multibuild.log Config.h.orig
+ - rm -rf docs/busybox _install libpwd.a
+ - rm -f busybox.links loop.h *~ slist.mk core applet_source_list
+ - find -name \*.o -exec rm -f {} \;
distclean: clean
- rm -f busybox
- cd tests && $(MAKE) distclean
-install: busybox busybox.links
- $(BB_SRC_DIR)/install.sh $(PREFIX)
+install: install.sh busybox busybox.links
+ $(SHELL) $< $(PREFIX)
-install-hardlinks: busybox busybox.links
- $(BB_SRC_DIR)/install.sh $(PREFIX) --hardlinks
+install-hardlinks: install.sh busybox busybox.links
+ $(SHELL) $< $(PREFIX) --hardlinks
debug_pristine:
@ echo VPATH=\"$(VPATH)\"
- @ echo CONFIG_LIST=\"$(CONFIG_LIST)\"
- @ echo CONFIG_H=\"$(CONFIG_H)\"
@ echo OBJECTS=\"$(OBJECTS)\"
dist release: distclean doc
find busybox-$(VERSION)/ -type d \
-name CVS \
-print \
- | xargs rm -rf; \
+ -exec rm -rf {} \; \
\
find busybox-$(VERSION)/ -type f \
-name .cvsignore \
-print \
- | xargs rm -f; \
+ -exec rm -f {} \; \
\
find busybox-$(VERSION)/ -type f \
-name .\#* \
-print \
- | xargs rm -f; \
+ -exec rm -f {} \; \
\
tar -cvzf busybox-$(VERSION).tar.gz busybox-$(VERSION)/;