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author | nobody | 2004-10-13 09:42:10 +0000 |
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committer | nobody | 2004-10-13 09:42:10 +0000 |
commit | 8c59a0bf0e9e2d87b0ff273ea3f0bf05bbbf6373 (patch) | |
tree | 1826706cd4fd009fcd14f4f8021005ec8ec0fa59 /busybox/Rules.mak | |
download | busybox-8c59a0bf0e9e2d87b0ff273ea3f0bf05bbbf6373.zip busybox-8c59a0bf0e9e2d87b0ff273ea3f0bf05bbbf6373.tar.gz |
This commit was manufactured by cvs2svn to create tag 'busybox_1_00'.
Diffstat (limited to 'busybox/Rules.mak')
-rw-r--r-- | busybox/Rules.mak | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/busybox/Rules.mak b/busybox/Rules.mak new file mode 100644 index 0000000..d04d4b9 --- /dev/null +++ b/busybox/Rules.mak @@ -0,0 +1,196 @@ +# Rules.make for busybox +# +# Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.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 := 1.00 +BUILDTIME := $(shell TZ=UTC date -u "+%Y.%m.%d-%H:%M%z") + + +#-------------------------------------------------------- +# With a modern GNU make(1) (highly recommended, that's what all the +# developers use), all of the following configuration values can be +# overridden at the command line. For example: +# make CROSS=powerpc-linux- BB_SRC_DIR=$HOME/busybox PREFIX=/mnt/app +#-------------------------------------------------------- + +# If you are running a cross compiler, you will want to set 'CROSS' +# to something more interesting... Target architecture is determined +# by asking the CC compiler what arch it compiles things for, so unless +# your compiler is broken, you should not need to specify TARGET_ARCH +CROSS =$(subst ",, $(strip $(CROSS_COMPILER_PREFIX))) +CC = $(CROSS)gcc +AR = $(CROSS)ar +AS = $(CROSS)as +LD = $(CROSS)ld +NM = $(CROSS)nm +STRIP = $(CROSS)strip +CPP = $(CC) -E +# MAKEFILES = $(top_builddir)/.config + +# What OS are you compiling busybox for? This allows you to include +# OS specific things, syscall overrides, etc. +TARGET_OS=linux + +# Select the compiler needed to build binaries for your development system +HOSTCC = gcc +HOSTCFLAGS= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer + +# Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc. +LC_ALL:= C + +# If you want to add some simple compiler switches (like -march=i686), +# especially from the command line, use this instead of CFLAGS directly. +# For optimization overrides, it's better still to set OPTIMIZATION. +CFLAGS_EXTRA=$(subst ",, $(strip $(EXTRA_CFLAGS_OPTIONS))) + +# If you have a "pristine" source directory, point BB_SRC_DIR to it. +# Experimental and incomplete; tell the mailing list +# <busybox@busybox.net> if you do or don't like it so far. +BB_SRC_DIR= + +# To compile vs some other alternative libc, you may need to use/adjust +# the following lines to meet your needs... +# +# If you are using Red Hat 6.x with the compatible RPMs (for developing under +# Red Hat 5.x and glibc 2.0) uncomment the following. Be sure to read about +# using the compatible RPMs (compat-*) at http://www.redhat.com ! +#LIBCDIR:=/usr/i386-glibc20-linux +# +# For other libraries, you are on your own. But these may (or may not) help... +#LDFLAGS+=-nostdlib +#LIBRARIES:=$(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$(top_builddir)/include -I$(top_srcdir)/include -I$(srcdir) +ARFLAGS=-r + +#-------------------------------------------------------- +export VERSION BUILDTIME TOPDIR HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP +ifeq ($(strip $(TARGET_ARCH)),) +TARGET_ARCH=$(shell $(CC) -dumpmachine | sed -e s'/-.*//' \ + -e 's/i.86/i386/' \ + -e 's/sparc.*/sparc/' \ + -e 's/arm.*/arm/g' \ + -e 's/m68k.*/m68k/' \ + -e 's/ppc/powerpc/g' \ + -e 's/v850.*/v850/g' \ + -e 's/sh[234]/sh/' \ + -e 's/mips-.*/mips/' \ + -e 's/mipsel-.*/mipsel/' \ + -e 's/cris.*/cris/' \ + ) +endif + +# Pull in the user's busybox configuration +ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),) +-include $(top_builddir)/.config +endif + +# A nifty macro to make testing gcc features easier +check_gcc=$(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 $(TARGET_ARCH)),i386) + OPTIMIZATION+=$(call check_gcc,-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 $(CONFIG_LFS)),y) + # For large file summit support + CFLAGS+=-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 +endif +ifeq ($(strip $(CONFIG_DMALLOC)),y) + # For testing mem leaks with dmalloc + CFLAGS+=-DDMALLOC + LIBRARIES:=-ldmalloc +else + ifeq ($(strip $(CONFIG_EFENCE)),y) + LIBRARIES:=-lefence + endif +endif +ifeq ($(strip $(CONFIG_DEBUG)),y) + CFLAGS +=$(WARNINGS) -g -D_GNU_SOURCE + LDFLAGS +=-Wl,-warn-common + STRIPCMD:=/bin/true -Not_stripping_since_we_are_debugging +else + CFLAGS+=$(WARNINGS) $(OPTIMIZATIONS) -D_GNU_SOURCE -DNDEBUG + LDFLAGS += -s -Wl,-warn-common + STRIPCMD:=$(STRIP) --remove-section=.note --remove-section=.comment +endif +ifeq ($(strip $(CONFIG_STATIC)),y) + LDFLAGS += --static +endif + +ifeq ($(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 + +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) + +.PHONY: dummy + + +.EXPORT_ALL_VARIABLES: + |