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Diffstat (limited to 'debian/Rules.mak.shared')
| -rw-r--r-- | debian/Rules.mak.shared | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/debian/Rules.mak.shared b/debian/Rules.mak.shared new file mode 100644 index 0000000..56c4025 --- /dev/null +++ b/debian/Rules.mak.shared @@ -0,0 +1,237 @@ +# 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:=#-Werror + +# 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 := $(TOPDIR).config +export VERSION BUILDTIME TOPDIR HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP + + +# To compile vs uClibc, just use the compiler wrapper built by uClibc... +# Everything should compile and work as expected these days... +#CC:=/usr/i386-linux-uclibc/bin/i386-uclibc-gcc + +# To compile vs some other alternative libc, you may need to use/adjust +# the following lines to meet your needs... +# +# If you are using Red Hat 6.x with the compatible RPMs (for developing under +# Red Hat 5.x and glibc 2.0) uncomment the following. Be sure to read about +# using the compatible RPMs (compat-*) at http://www.redhat.com ! +#LIBCDIR:=/usr/i386-glibc20-linux +# +# The following is used for libc5 (if you install altgcc and libc5-altdev +# on a Debian system). +#LIBCDIR:=/usr/i486-linuxlibc1 +# +# For other libraries, you are on your own... +#LDFLAGS+=-nostdlib +#LIBRARIES:=$(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") + +WARNINGS:=-Wall -Wstrict-prototypes -Wshadow +CFLAGS:=-I$(TOPDIR)include +ARFLAGS:=-r + +TARGET_ARCH:=${shell $(CC) -dumpmachine | sed -e s'/-.*//' \ + -e 's/i.86/i386/' \ + -e 's/sparc.*/sparc/' \ + -e 's/arm.*/arm/g' \ + -e 's/m68k.*/m68k/' \ + -e 's/ppc/powerpc/g' \ + -e 's/v850.*/v850/g' \ + -e 's/sh[234]/sh/' \ + -e 's/mips.*/mips/' \ + } +# A nifty macro to make testing gcc features easier +check_gcc=$(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; \ + then echo "$(1)"; else echo "$(2)"; fi) + +#-------------------------------------------------------- +# Arch specific compiler optimization stuff should go here. +# Unless you want to override the defaults, do not set anything +# for OPTIMIZATION... + +# use '-Os' optimization if available, else use -O2 +OPTIMIZATION:= +OPTIMIZATION+=${call check_gcc,-Os,-O2} + +# Some nice architecture specific optimizations +ifeq ($(strip $(TARGET_ARCH)),arm) + OPTIMIZATION+=-fstrict-aliasing +endif +ifeq ($(strip $(TARGET_ARCH)),i386) + OPTIMIZATION+=-march=i386 + OPTIMIZATION+=$(call check_gcc,-mpreferred-stack-boundary=2,) + OPTIMIZATION+=$(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,\ + -malign-functions=0 -malign-jumps=0 -malign-loops=0) +endif +OPTIMIZATIONS:=$(OPTIMIZATION) -fomit-frame-pointer + +# +#-------------------------------------------------------- +# 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 $(DOLFS)),true) + # For large file summit support + CFLAGS+=-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 +endif +ifeq ($(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 $(DOSTATIC)),true) + LDFLAGS += --static +endif + +ifeq ($(strip $(PREFIX)),) + PREFIX:=`pwd`/_install +endif + +# Additional complications due to support for pristine source dir. +# Include files in the build directory should take precedence over +# the copy in BB_SRC_DIR, both during the compilation phase and the +# shell script that finds the list of object files. +# Work in progress by <ldoolitt@recycle.lbl.gov>. +# +ifneq ($(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: + |