X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=Rules.mak;h=d04d4b9f207ec8547d168a7e9bdb0d33ccb21311;hb=7b71d740b9186633b9a4b1d05247376485e2b805;hp=2b0393309837838854afe699cd5591a0e6364f83;hpb=5b0f9e417e8b7c7a0700cea4a550843a8c1af087;p=oweals%2Fbusybox.git diff --git a/Rules.mak b/Rules.mak index 2b0393309..d04d4b9f2 100644 --- a/Rules.mak +++ b/Rules.mak @@ -1,6 +1,6 @@ # Rules.make for busybox # -# Copyright (C) 2002 Erik Andersen +# Copyright (C) 1999-2004 by Erik Andersen # # 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 @@ -17,81 +17,53 @@ # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # +#-------------------------------------------------------- PROG := busybox -VERSION := 0.61.pre +VERSION := 1.00 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 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 = $(top_builddir)/.config + +# What OS are you compiling busybox for? This allows you to include +# OS specific things, syscall overrides, etc. +TARGET_OS=linux + +# Select the compiler needed to build binaries for your development system +HOSTCC = gcc +HOSTCFLAGS= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer + +# Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc. +LC_ALL:= C # If you want to add some simple compiler switches (like -march=i686), # especially from the command line, use this instead of CFLAGS directly. # For optimization overrides, it's better still to set OPTIMIZATION. -CFLAGS_EXTRA:= - -# If you want a static binary, turn this on. -DOSTATIC:=false - -# Set the following to `true' to make a debuggable build. -# Leave this set to `false' for production use. -DODEBUG:=false - -# This enables compiling with dmalloc ( http://dmalloc.com/ ) -# which is an excellent public domain mem leak and malloc problem -# detector. To enable dmalloc, before running busybox you will -# want to first set up your environment. -# eg: `export DMALLOC_OPTIONS=debug=0x34f47d83,inter=100,log=logfile` -# The debug= value is generated using the following command -# dmalloc -p log-stats -p log-non-free -p log-bad-space -p log-elapsed-time \ -# -p check-fence -p check-heap -p check-lists -p check-blank \ -# -p check-funcs -p realloc-copy -p allow-free-null -# Do not enable this for production builds... -DODMALLOC:=false - -# Electric-fence is another very useful malloc debugging library. -# Do not enable this for production builds... -DOEFENCE:=false - -# If you want large file summit support, turn this on. -# This has no effect if you don't have a kernel with lfs -# support, and a system with libc-2.1.3 or later. -# Some of the programs that can benefit from lfs support -# are dd, gzip, mount, tar, and mkfs_minix. -# LFS allows you to use the above programs for files -# larger than 2GB! -DOLFS:=false +CFLAGS_EXTRA=$(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 # 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 := $(TOPDIR).config -export VERSION BUILDTIME TOPDIR HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP - - -# To compile vs uClibc, just use the compiler wrapper built by uClibc... -# Everything should compile and work as expected these days... -#CC:=/usr/i386-linux-uclibc/usr/bin/i386-uclibc-gcc +BB_SRC_DIR= # To compile vs some other alternative libc, you may need to use/adjust # the following lines to meet your needs... @@ -101,21 +73,20 @@ export VERSION BUILDTIME TOPDIR HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP # using the compatible RPMs (compat-*) at http://www.redhat.com ! #LIBCDIR:=/usr/i386-glibc20-linux # -# The following is used for libc5 (if you install altgcc and libc5-altdev -# on a Debian system). -#LIBCDIR:=/usr/i486-linuxlibc1 -# -# For other libraries, you are on your own... +# For other libraries, you are on your own. But these may (or may not) help... #LDFLAGS+=-nostdlib #LIBRARIES:=$(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$(TOPDIR)include -ARFLAGS:=-r +WARNINGS=-Wall -Wstrict-prototypes -Wshadow +CFLAGS=-I$(top_builddir)/include -I$(top_srcdir)/include -I$(srcdir) +ARFLAGS=-r -TARGET_ARCH:=${shell $(CC) -dumpmachine | sed -e s'/-.*//' \ +#-------------------------------------------------------- +export VERSION BUILDTIME TOPDIR HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP +ifeq ($(strip $(TARGET_ARCH)),) +TARGET_ARCH=$(shell $(CC) -dumpmachine | sed -e s'/-.*//' \ -e 's/i.86/i386/' \ -e 's/sparc.*/sparc/' \ -e 's/arm.*/arm/g' \ @@ -123,8 +94,20 @@ TARGET_ARCH:=${shell $(CC) -dumpmachine | sed -e s'/-.*//' \ -e 's/ppc/powerpc/g' \ -e 's/v850.*/v850/g' \ -e 's/sh[234]/sh/' \ - -e 's/mips.*/mips/' \ - } + -e 's/mips-.*/mips/' \ + -e 's/mipsel-.*/mipsel/' \ + -e 's/cris.*/cris/' \ + ) +endif + +# Pull in the user's busybox configuration +ifeq ($(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 "$(2)"; fi) #-------------------------------------------------------- # Arch specific compiler optimization stuff should go here. @@ -132,24 +115,20 @@ TARGET_ARCH:=${shell $(CC) -dumpmachine | sed -e s'/-.*//' \ # for OPTIMIZATION... # use '-Os' optimization if available, else use -O2 -OPTIMIZATION := ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \ - then echo "-Os"; else echo "-O2" ; fi} +OPTIMIZATION= +OPTIMIZATION=${call check_gcc,-Os,-O2} # Some nice architecture specific optimizations ifeq ($(strip $(TARGET_ARCH)),arm) OPTIMIZATION+=-fstrict-aliasing endif ifeq ($(strip $(TARGET_ARCH)),i386) - OPTIMIZATION+=-march=i386 - OPTIMIZATION+=${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc \ - /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi} - OPTIMIZATION+=${shell if $(CC) -falign-functions=1 -falign-jumps=0 -falign-loops=0 \ - -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo \ - "-falign-functions=1 -falign-jumps=0 -falign-loops=0"; else \ - if $(CC) -malign-functions=0 -malign-jumps=0 -S -o /dev/null -xc \ - /dev/null >/dev/null 2>&1; then echo "-malign-functions=0 -malign-jumps=0"; fi; fi} + OPTIMIZATION+=$(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:=$(OPTIMIZATION) -fomit-frame-pointer +OPTIMIZATIONS=$(OPTIMIZATION) -fomit-frame-pointer # #-------------------------------------------------------- @@ -158,39 +137,35 @@ OPTIMIZATIONS:=$(OPTIMIZATION) -fomit-frame-pointer # by itself, instead of following it by the same half-dozen overrides # every time. The stuff below, on the other hand, is probably less # prone to casual user adjustment. -# +# -ifeq ($(strip $(DOLFS)),true) +ifeq ($(strip $(CONFIG_LFS)),y) # For large file summit support - CFLAGS+=-D_FILE_OFFSET_BITS=64 -D__USE_FILE_OFFSET64 + CFLAGS+=-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 endif -ifeq ($(strip $(DODMALLOC)),true) +ifeq ($(strip $(CONFIG_DMALLOC)),y) # For testing mem leaks with dmalloc CFLAGS+=-DDMALLOC LIBRARIES:=-ldmalloc - # Force debug=true, since this is useless when not debugging... - DODEBUG:=true else - ifeq ($(strip $(DOEFENCE)),true) + ifeq ($(strip $(CONFIG_EFENCE)),y) LIBRARIES:=-lefence - # Force debug=true, since this is useless when not debugging... - DODEBUG:=true endif endif -ifeq ($(strip $(DODEBUG)),true) +ifeq ($(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) $(OPTIMIZATIONS) -D_GNU_SOURCE + CFLAGS+=$(WARNINGS) $(OPTIMIZATIONS) -D_GNU_SOURCE -DNDEBUG LDFLAGS += -s -Wl,-warn-common STRIPCMD:=$(STRIP) --remove-section=.note --remove-section=.comment endif -ifeq ($(strip $(DOSTATIC)),true) +ifeq ($(strip $(CONFIG_STATIC)),y) LDFLAGS += --static endif -ifndef $(PREFIX) +ifeq ($(strip $(PREFIX)),) PREFIX:=`pwd`/_install endif @@ -204,8 +179,6 @@ ifneq ($(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 @@ -216,23 +189,8 @@ endif # 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: