#
PROG := busybox
-VERSION := 0.47pre
+VERSION := 0.48
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 a static binary, turn this on.
DOSTATIC = false
# 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...
-CROSS = #powerpc-linux-
+# to something more interesting, like "powerpc-linux-".
+CROSS =
CC = $(CROSS)gcc
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 -fno-builtin -I$(LIBCDIR)/include -I$(GCCINCDIR)
+# busybox compile with uC-Libc (needs BB_GETOPT and BB_FEATURE_NFSMOUNT
+# disabled at the moment).
+#LIBCDIR=/home/andersen/CVS/uClibc
#LDFLAGS+=-nostdlib
-#LIBRARIES = $(LIBCDIR)/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")
#--------------------------------------------------------
# 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 =
+ 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 $(PROG)
- #Only staticly link when _not_ debugging
- ifeq ($(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
-OBJECTS = $(shell ./busybox.sh) busybox.o messages.o usage.o utility.o
+# Additional complications due to support for pristine source dir.
+# Config.h in the build directory should take precedence over the
+# copy in BB_SRC_DIR, both during the compilation phase and the
+# shell script that finds the list of object files.
+#
+# Work in progress by <ldoolitt@recycle.lbl.gov>.
+# If it gets in your way, set DISABLE_VPATH=yes
+ifeq ($(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
endif
-all: loop.h busybox busybox.links doc
+all: busybox busybox.links doc
doc: olddoc
@echo
@echo BusyBox Documentation
@echo
- - pod2text docs/busybox.pod > docs/BusyBox.txt
+ -mkdir -p docs
+ -pod2text $(BB_SRC_DIR)/docs/busybox.pod > docs/BusyBox.txt
docs/BusyBox.1: docs/busybox.pod
- - pod2man --center=BusyBox --release="version $(VERSION)" docs/busybox.pod > docs/BusyBox.1
+ - 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
+ -@ 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*
+ -@ 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/busybox.html
+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/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)
$(CC) $(LDFLAGS) -o $@ $^ $(LIBRARIES)
$(STRIP)
-busybox.links: busybox.def.h
- - ./busybox.mkll | sort >$@
+busybox.links: Config.h
+ - $(BB_SRC_DIR)/busybox.mkll $(CONFIG_H) $(BB_SRC_DIR)/applets.h >$@
nfsmount.o cmdedit.o: %.o: %.h
-$(OBJECTS): %.o: busybox.def.h internal.h %.c Makefile
+$(OBJECTS): %.o: %.c Config.h busybox.h Makefile
-utility.o:
+utility.o: loop.h
-loop.h:
- @./mk_loop_h.sh
+loop.h: mk_loop_h.sh
+ @ sh $<
test tests:
cd tests && $(MAKE) all
clean:
- cd tests && $(MAKE) clean
+ - 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 _install
- - rm -f busybox.links *~ *.o core
+ - 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
- ./install.sh $(PREFIX) --hardlinks
+ $(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 ..; \
projects / oweals / busybox.git / blobdiff