#
PROG := busybox
-VERSION := 0.45
+VERSION := 0.49pre
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
-# 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...
-#CFLAGS+=-nostdinc -I/home/andersen/CVS/uC-libc/include -I/usr/include/linux
+# 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 = /home/andersen/CVS/uC-libc/libc.a
+#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")
-
-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)
+WARNINGS = -Wall
-# Allow alternative stripping tools to be used...
-ifndef $(STRIPTOOL)
- STRIPTOOL = strip
+ifeq ($(DOLFS),true)
+ # For large file summit support
+ CFLAGS+=-D_FILE_OFFSET_BITS=64
+endif
+ifeq ($(DODMALLOC),true)
+ # For testing mem leaks with dmalloc
+ CFLAGS+=-DDMALLOC
+ LIBRARIES = -ldmalloc
+ # Force debug=true, since this is useless when not debugging...
+ DODEBUG = true
endif
-
-# -D_GNU_SOURCE is needed because environ is used in init.c
ifeq ($(DODEBUG),true)
- CFLAGS += -Wall -g -D_GNU_SOURCE
- LDFLAGS +=
- STRIP =
+ CFLAGS += $(WARNINGS) -g -D_GNU_SOURCE
+ LDFLAGS += -Wl,-warn-common
+ STRIP =
else
- CFLAGS += -Wall $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE
- LDFLAGS += -s
+ CFLAGS += $(WARNINGS) $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE
+ LDFLAGS += -s -Wl,-warn-common
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 && $(LD) --gc-sections -v >/dev/null && echo 1),1)
- # CFLAGS += -ffunction-sections -fdata-sections
- # LDFLAGS += --gc-sections
- #endif
- endif
+endif
+ifeq ($(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 ./busybox.sh) busybox.o messages.o utility.o
+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
-all: busybox busybox.links olddoc #doc
+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
-doc: docs/BusyBox.txt docs/BusyBox.html docs/BusyBox.pdf
+newdoc: docs/busybox.txt docs/busybox.pdf docs/busybox/busyboxdocumentation.html
-docs/BusyBox.txt: docs/busybox.sgml
+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
+docs/busybox.dvi: docs/busybox.sgml
+ - mkdir -p docs
(cd docs; sgmltools -b dvi busybox.sgml)
-docs/BusyBox.ps: docs/BusyBox.dvi
+docs/busybox.ps: docs/busybox.sgml
+ - mkdir -p docs
(cd docs; sgmltools -b ps busybox.sgml)
-docs/BusyBox.pdf: docs/BusyBox.ps
+docs/busybox.pdf: docs/busybox.ps
+ - mkdir -p docs
(cd docs; ps2pdf busybox.ps)
-docs/busybox.lineo.com/BusyBox.html: docs/busybox.sgml
+docs/busybox/busyboxdocumentation.html: docs/busybox.sgml
+ - mkdir -p docs
(cd docs/busybox.lineo.com; sgmltools -b html ../busybox.sgml)
-docs/BusyBox.html: docs/busybox.lineo.com/BusyBox.html
- - rm -f docs/BusyBox.html
- - ln -s busybox.lineo.com/BusyBox.html docs/BusyBox.html
-
-
-# Old Docs...
-olddoc: olddoc/BusyBox.txt olddoc/BusyBox.1 olddoc/BusyBox.html
-olddoc/BusyBox.txt: docs/busybox.pod
- @echo
- @echo BusyBox Documentation
- @echo
- - pod2text docs/busybox.pod > docs/BusyBox.txt
-olddoc/BusyBox.1: docs/busybox.pod
- - pod2man --center=BusyBox --release="version $(VERSION)" docs/busybox.pod > docs/BusyBox.1
+busybox: $(PWD_LIB) $(OBJECTS)
+ $(CC) $(LDFLAGS) -o $@ $^ $(LIBRARIES)
+ $(STRIP)
-olddoc/BusyBox.html: olddoc/busybox.lineo.com/BusyBox.html
- - rm -f docs/BusyBox.html
- - ln -s busybox.lineo.com/BusyBox.html docs/BusyBox.html
+$(PWD_LIB):
+ $(MAKE) -eC pwd_grp
-olddoc/busybox.lineo.com/BusyBox.html: docs/busybox.pod
- - pod2html --noindex docs/busybox.pod > docs/busybox.lineo.com/BusyBox.html
- - rm -f pod2html*
+busybox.links: Config.h applets.h
+ - $(BB_SRC_DIR)/busybox.mkll $(CONFIG_H) $(BB_SRC_DIR)/applets.h >$@
-busybox: $(OBJECTS)
- $(CC) $(LDFLAGS) -o $@ $^ $(LIBRARIES)
- $(STRIP)
+nfsmount.o cmdedit.o: %.o: %.h
+$(OBJECTS): %.o: %.c Config.h busybox.h applets.h Makefile
+ $(CC) $(CFLAGS) -c $*.c -o $*.o
-busybox.links: busybox.def.h
- - ./busybox.mkll | sort >$@
+utility.o: loop.h
-regexp.o nfsmount.o cmdedit.o: %.o: %.h
-$(OBJECTS): %.o: busybox.def.h internal.h %.c Makefile
+loop.h: mk_loop_h.sh
+ @ sh $<
test tests:
cd tests && $(MAKE) all
clean:
- - rm -f busybox.links *~ *.o core
- - rm -rf _install
- 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 -rf docs/busybox
+ - 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
- ./install.sh $(PREFIX)
+ $(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=\"$(OBJECTS)\"
dist release: distclean doc
cd ..; \
-print \
| xargs rm -f; \
\
+ find busybox-$(VERSION)/ -type f \
+ -name .\#* \
+ -print \
+ | xargs rm -f; \
+ \
tar -cvzf busybox-$(VERSION).tar.gz busybox-$(VERSION)/;
+
+.PHONY: tags
+tags:
+ ctags -R .