| # Rules.make for busybox |
| # |
| # Copyright (C) 2002 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 := 0.61.pre |
| BUILDTIME := $(shell TZ=UTC date -u "+%Y.%m.%d-%H:%M%z") |
| HOSTCC := gcc |
| HOSTCFLAGS:= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer |
| |
| |
| # What OS are you compiling busybox for? This allows you to include |
| # OS specific things, syscall overrides, etc. |
| TARGET_OS:=linux |
| |
| # With a modern GNU make(1) (highly recommended, that's what all the |
| # developers use), all of the following configuration values can be |
| # overridden at the command line. For example: |
| # make CROSS=powerpc-linux- BB_SRC_DIR=$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. |
| DODEBUG:=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=0x34f47d83,inter=100,log=logfile` |
| # The debug= value is generated using the following command |
| # dmalloc -p log-stats -p log-non-free -p log-bad-space -p log-elapsed-time \ |
| # -p check-fence -p check-heap -p check-lists -p check-blank \ |
| # -p check-funcs -p realloc-copy -p allow-free-null |
| # Do not enable this for production builds... |
| DODMALLOC:=false |
| |
| # Electric-fence is another very useful malloc debugging library. |
| # Do not enable this for production builds... |
| DOEFENCE:=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@busybox.net> 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 CROSS |
| # to something more interesting, like "arm-linux-". |
| CROSS:= |
| CC := $(CROSS)gcc |
| AR := $(CROSS)ar |
| AS := $(CROSS)as |
| LD := $(CROSS)ld |
| NM := $(CROSS)nm |
| STRIP := $(CROSS)strip |
| CPP := $(CC) -E |
| MAKEFILES := $(TOPDIR).config |
| export VERSION BUILDTIME TOPDIR HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP |
| |
| |
| # To compile vs uClibc, just use the compiler wrapper built by uClibc... |
| # Everything should compile and work as expected these days... |
| #CC:=/usr/i386-linux-uclibc/usr/bin/i386-uclibc-gcc |
| |
| # To compile vs some other alternative libc, you may need to use/adjust |
| # the following lines to meet your needs... |
| # |
| # If you are using Red Hat 6.x with the compatible RPMs (for developing under |
| # Red Hat 5.x and glibc 2.0) uncomment the following. Be sure to read about |
| # using the compatible RPMs (compat-*) at http://www.redhat.com ! |
| #LIBCDIR:=/usr/i386-glibc20-linux |
| # |
| # The following is used for libc5 (if you install altgcc and libc5-altdev |
| # on a Debian system). |
| #LIBCDIR:=/usr/i486-linuxlibc1 |
| # |
| # For other libraries, you are on your own... |
| #LDFLAGS+=-nostdlib |
| #LIBRARIES:=$(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 $(CC) -Os -S -o /dev/null -xc /dev/null \ |
| >/dev/null 2>&1; then echo "-Os"; else echo "-O2" ; fi} |
| GCC_STACK_BOUNDRY:=${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc /dev/null \ |
| >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; else echo "" ; fi} |
| OPTIMIZATIONS:=$(OPTIMIZATION) -fomit-frame-pointer $(GCC_STACK_BOUNDRY) #-fstrict-aliasing -march=i386 -mcpu=i386 -malign-functions=0 -malign-jumps=0 |
| WARNINGS:=-Wall -Wstrict-prototypes -Wshadow |
| CFLAGS:=-I$(TOPDIR)include |
| ARFLAGS:=-r |
| |
| # |
| #-------------------------------------------------------- |
| # 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 $(DOLFS)),true) |
| # For large file summit support |
| CFLAGS+=-D_FILE_OFFSET_BITS=64 -D__USE_FILE_OFFSET64 |
| endif |
| ifeq ($(strip $(DODMALLOC)),true) |
| # For testing mem leaks with dmalloc |
| CFLAGS+=-DDMALLOC |
| LIBRARIES:=-ldmalloc |
| # Force debug=true, since this is useless when not debugging... |
| DODEBUG:=true |
| else |
| ifeq ($(strip $(DOEFENCE)),true) |
| LIBRARIES:=-lefence |
| # Force debug=true, since this is useless when not debugging... |
| DODEBUG:=true |
| endif |
| endif |
| ifeq ($(strip $(DODEBUG)),true) |
| CFLAGS +=$(WARNINGS) -g -D_GNU_SOURCE |
| LDFLAGS +=-Wl,-warn-common |
| STRIPCMD:=/bin/true -Not_stripping_since_we_are_debugging |
| else |
| CFLAGS += $(WARNINGS) $(OPTIMIZATIONS) -D_GNU_SOURCE |
| LDFLAGS += -s -Wl,-warn-common |
| STRIPCMD:=$(STRIP) --remove-section=.note --remove-section=.comment |
| endif |
| ifeq ($(strip $(DOSTATIC)),true) |
| LDFLAGS += --static |
| endif |
| |
| ifndef $(PREFIX) |
| PREFIX:=`pwd`/_install |
| endif |
| |
| # Additional complications due to support for pristine source dir. |
| # Include files in the build directory should take precedence over |
| # the copy in BB_SRC_DIR, both during the compilation phase and the |
| # shell script that finds the list of object files. |
| # Work in progress by <ldoolitt@recycle.lbl.gov>. |
| # |
| ifneq ($(strip $(BB_SRC_DIR)),) |
| VPATH:=$(BB_SRC_DIR) |
| endif |
| |
| CFLAGS += -DBB_VER='"$(VERSION)"' |
| CFLAGS += -DBB_BT='"$(BUILDTIME)"' |
| OBJECTS:=$(APPLET_SOURCES:.c=.o) busybox.o usage.o applets.o |
| CFLAGS += $(CROSS_CFLAGS) |
| ifdef BB_INIT_SCRIPT |
| CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"' |
| endif |
| |
| # Put user-supplied flags at the end, where they |
| # have a chance of winning. |
| CFLAGS += $(CFLAGS_EXTRA) |
| |
| %.o: %.c |
| $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $< |
| |
| ifdef _FASTDEP_ALL_SUB_DIRS |
| fastdep: dummy |
| $(TOPDIR)scripts/mkdep $(CFLAGS) $(EXTRA_CFLAGS_nostdinc) -- $(wildcard *.[chS]) > .depend |
| ifdef ALL_SUB_DIRS |
| $(MAKE) $(patsubst %,_sfdep_%,$(ALL_SUB_DIRS)) _FASTDEP_ALL_SUB_DIRS="$(ALL_SUB_DIRS)" |
| endif |
| |
| $(patsubst %,_sfdep_%,$(_FASTDEP_ALL_SUB_DIRS)): |
| $(MAKE) -C $(patsubst _sfdep_%,%,$@) fastdep |
| endif |
| |
| .PHONY: dummy |
| |
| |
| |
| .EXPORT_ALL_VARIABLES: |
| |