diff options
Diffstat (limited to 'Rules.mak')
-rw-r--r-- | Rules.mak | 436 |
1 files changed, 0 insertions, 436 deletions
diff --git a/Rules.mak b/Rules.mak deleted file mode 100644 index e070498..0000000 --- a/Rules.mak +++ /dev/null @@ -1,436 +0,0 @@ -# Rules.make for busybox -# -# Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org> -# -# Licensed under GPLv2, see the file LICENSE in this tarball for details. -# - -# Pull in the user's busybox configuration -ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),) --include $(top_builddir)/.config -endif - -#-------------------------------------------------------- -PROG := busybox -MAJOR_VERSION :=1 -MINOR_VERSION :=2 -SUBLEVEL_VERSION:=0 -EXTRAVERSION :=-svn -VERSION :=$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL_VERSION)$(EXTRAVERSION) -BUILDTIME := $(shell TZ=UTC date -u "+%Y.%m.%d-%H:%M%z") - - -#-------------------------------------------------------- -# With a modern GNU make(1) (highly recommended, that's what all the -# developers use), all of the following configuration values can be -# overridden at the command line. For example: -# make CROSS_COMPILE=powerpc-linux- top_srcdir="$HOME/busybox" PREFIX=/mnt/app -#-------------------------------------------------------- - -# If you are running a cross compiler, you will want to set CROSS_COMPILE -# 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 -CC = $(CROSS_COMPILE)gcc -AR = $(CROSS_COMPILE)ar -AS = $(CROSS_COMPILE)as -LD = $(CROSS_COMPILE)ld -NM = $(CROSS_COMPILE)nm -STRIP = $(CROSS_COMPILE)strip -ELF2FLT = $(CROSS_COMPILE)elf2flt -CPP = $(CC) -E -SED ?= sed -BZIP2 ?= bzip2 - - -# What OS are you compiling busybox for? This allows you to include -# OS specific things, syscall overrides, etc. -TARGET_OS=linux - -# Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc. -LC_ALL:= C - -# This must bind late because srcdir is reset for every source subdirectory. -INCS:=-I$(top_builddir)/include -I$(top_srcdir)/include -CFLAGS=$(INCS) -I$(srcdir) -D_GNU_SOURCE -CFLAGS+=$(CHECKED_CFLAGS) -ARFLAGS=cru - -# gcc centric. Perhaps fiddle with findstring gcc,$(CC) for the rest -# get the CC MAJOR/MINOR version -CC_MAJOR:=$(shell printf "%02d" $(shell echo __GNUC__ | $(CC) -E -xc - | tail -n 1)) -CC_MINOR:=$(shell printf "%02d" $(shell echo __GNUC_MINOR__ | $(CC) -E -xc - | tail -n 1)) - -#-------------------------------------------------------- -export VERSION BUILDTIME HOSTCC HOSTCFLAGS CROSS_COMPILE CC AR AS LD NM STRIP CPP -ifeq ($(strip $(TARGET_ARCH)),) -TARGET_ARCH:=$(shell $(CC) -dumpmachine | $(SED) -e s'/-.*//' \ - -e 's/i.86/i386/' \ - -e 's/sparc.*/sparc/' \ - -e 's/arm.*/arm/g' \ - -e 's/m68k.*/m68k/' \ - -e 's/ppc/powerpc/g' \ - -e 's/v850.*/v850/g' \ - -e 's/sh[234]/sh/' \ - -e 's/mips-.*/mips/' \ - -e 's/mipsel-.*/mipsel/' \ - -e 's/cris.*/cris/' \ - ) -endif - -# A nifty macro to make testing gcc features easier, but note that everything -# that uses this _must_ use := or it will be re-evaluated everytime it is -# referenced. -ifeq ($(strip $(BUILD_VERBOSE)),2) -VERBOSE_CHECK_CC=echo CC=\"$(1)\" check_cc $(2) >&2; -endif -check_cc=$(shell \ - $(VERBOSE_CHECK_CC) \ - if [ "x$(1)" != "x" ] && [ "x$(2)" != "x" ]; then \ - echo "int i;" > ./conftest.c; \ - if $(1) $(2) -c -o conftest.o conftest.c > /dev/null 2>&1; \ - then echo "$(2)"; else echo "$(3)"; fi ; \ - rm -f conftest.c conftest.o; \ - fi) - -ifneq ($(filter $(nocheck_targets),$(MAKECMDGOALS)),) -check_cc:= -endif - -# A not very robust macro to check for available ld flags -ifeq ($(strip $(BUILD_VERBOSE)),2) -VERBOSE_CHECK_LD=echo LD=\"$(1)\" check_ld $(2) >&2; -endif -check_ld=$(shell \ - $(VERBOSE_CHECK_LD) \ - if [ "x$(1)" != "x" ] && [ "x$(2)" != "x" ]; then \ - $(1) -o /dev/null -b binary /dev/null > /dev/null 2>&1 && \ - echo "-Wl,$(2)" ; \ - fi) - -ifneq ($(filter $(nocheck_targets),$(MAKECMDGOALS)),) -check_ld:= -endif - -# A not very robust macro to check for available strip flags -ifeq ($(strip $(BUILD_VERBOSE)),2) -VERBOSE_CHECK_STRIP=echo STRIPCMD=\"$(1)\" check_strip $(2) >&2; -endif -check_strip=$(shell \ - $(VERBOSE_CHECK_STRIP) \ - if [ "x$(1)" != "x" ] && [ "x$(2)" != "x" ]; then \ - echo "int i;" > ./conftest.c ; \ - $(CC) -c -o conftest.o conftest.c > /dev/null 2>&1 ; \ - $(1) $(2) conftest.o > /dev/null 2>&1 && \ - echo "$(1) $(2)" || echo "$(3)"; \ - rm -f conftest.c conftest.o > /dev/null 2>&1 ; \ - fi) - -ifneq ($(filter $(nocheck_targets),$(MAKECMDGOALS)),) -check_strip:= -endif - - -# Select the compiler needed to build binaries for your development system -HOSTCC = gcc -HOSTCFLAGS:=$(call check_cc,$(HOSTCC),-Wall,) -HOSTCFLAGS+=$(call check_cc,$(HOSTCC),-Wstrict-prototypes,) -HOSTCFLAGS+=$(call check_cc,$(HOSTCC),-O2,) -HOSTCFLAGS+=$(call check_cc,$(HOSTCC),-fomit-frame-pointer,) - -LD_WHOLE_ARCHIVE:=$(shell echo "int i;" > conftest.c ; \ - $(CC) -c -o conftest.o conftest.c ; \ - echo "int main(void){return 0;}" > conftest_main.c ; \ - $(CC) -c -o conftest_main.o conftest_main.c ; \ - $(AR) $(ARFLAGS) conftest.a conftest.o ; \ - $(CC) -Wl,--whole-archive conftest.a -Wl,--no-whole-archive \ - conftest_main.o -o conftest > /dev/null 2>&1 \ - && echo "-Wl,--whole-archive" ; \ - rm conftest_main.o conftest_main.c conftest.o conftest.c \ - conftest.a conftest > /dev/null 2>&1 ; ) -ifneq ($(findstring whole-archive,$(LD_WHOLE_ARCHIVE)),) -LD_NO_WHOLE_ARCHIVE:= -Wl,--no-whole-archive -endif - -LD_START_GROUP:=$(shell echo "int bar(void){return 0;}" > conftest.c ; \ - $(CC) -c -o conftest.o conftest.c ; \ - echo "int main(void){return bar();}" > conftest_main.c ; \ - $(CC) -c -o conftest_main.o conftest_main.c ; \ - $(AR) $(ARFLAGS) conftest.a conftest.o ; \ - $(CC) -Wl,--start-group conftest.a conftest_main.o -Wl,--end-group \ - -o conftest > /dev/null 2>&1 && echo "-Wl,--start-group" ; \ - rm conftest_main.o conftest_main.c conftest.o conftest.c \ - conftest.a conftest > /dev/null 2>&1 ; ) -ifneq ($(findstring start-group,$(LD_START_GROUP)),) -LD_END_GROUP:= -Wl,--end-group -endif - -CHECKED_LDFLAGS := $(call check_ld,$(LD),--warn-common,) -#CHECKED_LDFLAGS := $(call check_ld,$(LD),-static-libgcc,) - -# Pin CHECKED_CFLAGS with := so it's only evaluated once. -CHECKED_CFLAGS:=$(call check_cc,$(CC),-Wall,) -CHECKED_CFLAGS+=$(call check_cc,$(CC),-Wstrict-prototypes,) -CHECKED_CFLAGS+=$(call check_cc,$(CC),-Wshadow,) -CHECKED_CFLAGS+=$(call check_cc,$(CC),-funsigned-char,) -CHECKED_CFLAGS+=$(call check_cc,$(CC),-fno-builtin-strlen,) -CHECKED_CFLAGS+=$(call check_cc,$(CC),-finline-limit=0,) - -# gcc 2.95 exits with 0 for "unrecognized option" -ifeq ($(strip $(shell [ $(CC_MAJOR) -ge 3 ] ; echo $$?)),0) - CHECKED_CFLAGS+=$(call check_cc,$(CC),-static-libgcc,) -endif - -# Preemptively pin this too. -PROG_CFLAGS:= - - -#-------------------------------------------------------- -# Arch specific compiler optimization stuff should go here. -# Unless you want to override the defaults, do not set anything -# for OPTIMIZATION... - -# use '-Os' optimization if available, else use -O2 -OPTIMIZATION:=$(call check_cc,$(CC),-Os,-O2) - -ifeq ($(CONFIG_BUILD_AT_ONCE),y) -# gcc 2.95 exits with 0 for "unrecognized option" -ifeq ($(strip $(shell [ $(CC_MAJOR) -ge 3 ] ; echo $$?)),0) - CFLAGS_COMBINE:=$(call check_cc,$(CC),--combine,) -endif -OPTIMIZATION+=$(call check_cc,$(CC),-funit-at-a-time,) -OPTIMIZATION+=$(call check_cc,$(CC),-fgcse-after-reload,) -ifneq ($(CONFIG_BUILD_LIBBUSYBOX),y) -# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25795 -# This prevents us from using -fwhole-program when we build the lib -PROG_CFLAGS+=$(call check_cc,$(CC),-fwhole-program,) -endif # CONFIG_BUILD_LIBBUSYBOX -endif # CONFIG_BUILD_AT_ONCE - -LIB_LDFLAGS:=$(call check_ld,$(LD),--enable-new-dtags,) -#LIB_LDFLAGS+=$(call check_ld,$(LD),--reduce-memory-overheads,) -#LIB_LDFLAGS+=$(call check_ld,$(LD),--as-needed,) -#LIB_LDFLAGS+=$(call check_ld,$(LD),--warn-shared-textrel,) - - -# Some nice architecture specific optimizations -ifeq ($(strip $(TARGET_ARCH)),arm) - OPTIMIZATION+=-fstrict-aliasing -endif -ifeq ($(strip $(TARGET_ARCH)),i386) - OPTIMIZATION+=$(call check_cc,$(CC),-march=i386,) -# gcc-4.0 and older seem to benefit from these -ifneq ($(strip $(shell [ $(CC_MAJOR) -ge 4 -a $(CC_MINOR) -ge 1 ] ; echo $$?)),0) - OPTIMIZATION+=$(call check_cc,$(CC),-mpreferred-stack-boundary=2,) - OPTIMIZATION+=$(call check_cc,$(CC),-falign-functions=1 -falign-jumps=1 -falign-loops=1, -malign-functions=0 -malign-jumps=0 -malign-loops=0,) - - # gcc 4.1 produces many broken, totally invalid warnings - CHECKED_CFLAGS+=$(call check_cc,$(CC),-Werror,) -endif # gcc-4.0 and older - -# gcc-4.1 and beyond seem to benefit from these -ifeq ($(strip $(shell [ $(CC_MAJOR) -ge 4 -a $(CC_MINOR) -ge 1 ] ; echo $$?)),0) - # turn off flags which hurt -Os - OPTIMIZATION+=$(call check_cc,$(CC),-fno-tree-loop-optimize,) - OPTIMIZATION+=$(call check_cc,$(CC),-fno-tree-dominator-opts,) - OPTIMIZATION+=$(call check_cc,$(CC),-fno-strength-reduce,) - - OPTIMIZATION+=$(call check_cc,$(CC),-fno-branch-count-reg,) -endif # gcc-4.1 and beyond -endif -OPTIMIZATION+=$(call check_cc,$(CC),-fomit-frame-pointer,) -CHECKED_LDFLAGS += $(call check_ld,$(LD),--sort-common,) - -# -#-------------------------------------------------------- -# 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 $(CONFIG_EFENCE)),y) - LIBRARIES:=-lefence - endif -endif - -# Debugging info - -ifeq ($(strip $(CONFIG_DEBUG)),y) - CFLAGS +=-g -else - CFLAGS +=-DNDEBUG -endif - -ifneq ($(strip $(CONFIG_DEBUG_PESSIMIZE)),y) - CFLAGS += $(OPTIMIZATION) -endif - -# warn a bit more verbosely for non-release versions -ifneq ($(EXTRAVERSION),) - CHECKED_CFLAGS+=$(call check_cc,$(CC),-Wstrict-prototypes,) - CHECKED_CFLAGS+=$(call check_cc,$(CC),-Wmissing-prototypes,) - CHECKED_CFLAGS+=$(call check_cc,$(CC),-Wmissing-declarations,) - CHECKED_CFLAGS+=$(call check_cc,$(CC),-Wunused,) - CHECKED_CFLAGS+=$(call check_cc,$(CC),-Winit-self,) - CHECKED_CFLAGS+=$(call check_cc,$(CC),-Wshadow,) - CHECKED_CFLAGS+=$(call check_cc,$(CC),-Wcast-align,) -endif -STRIPCMD:=$(call check_strip,$(STRIP),-s --remove-section=.note --remove-section=.comment,$(STRIP)) -ifeq ($(strip $(CONFIG_STATIC)),y) - PROG_CFLAGS += $(call check_cc,$(CC),-static,) -else - ifneq ($(strip $(CONFIG_DEBUG)),y) - OPTIMIZATION+=$(call check_cc,$(CC),-ffunction-sections -fdata-sections,) - CHECKED_LDFLAGS += $(call check_ld,$(LD),--gc-sections,) - endif -endif -CFLAGS_SHARED := $(call check_cc,$(CC),-shared,) -LIB_CFLAGS+=$(CFLAGS_SHARED) - -ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y) - CFLAGS_PIC:= $(call check_cc,$(CC),-fPIC,) - LIB_CFLAGS+=$(CFLAGS_PIC) -endif - -ifeq ($(strip $(CONFIG_SELINUX)),y) - LIBRARIES += -lselinux -lsepol -endif - -ifeq ($(strip $(PREFIX)),) - PREFIX:=`pwd`/_install -endif - -ifneq ($(strip $(CONFIG_GETOPT_LONG)),y) - CFLAGS += -D__need_getopt -endif - -# Additional complications due to support for pristine source dir. -# Include files in the build directory should take precedence over -# the copy in top_srcdir, both during the compilation phase and the -# shell script that finds the list of object files. -# Work in progress by <ldoolitt@recycle.lbl.gov>. - - -OBJECTS:=$(APPLET_SOURCES:.c=.o) busybox.o usage.o applets.o -CFLAGS += $(CHECKED_CFLAGS) $(CROSS_CFLAGS) -LDFLAGS += $(CHECKED_LDFLAGS) - -ifdef BB_INIT_SCRIPT - CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"' -endif - -# Put user-supplied flags at the end, where they -# have a chance of winning. --include $(top_builddir)/.config.mak - -#------------------------------------------------------------ -# Installation options -ifeq ($(strip $(CONFIG_INSTALL_APPLET_HARDLINKS)),y) -INSTALL_OPTS=--hardlinks -endif -ifeq ($(strip $(CONFIG_INSTALL_APPLET_SYMLINKS)),y) -INSTALL_OPTS=--symlinks -endif -ifeq ($(strip $(CONFIG_INSTALL_APPLET_DONT)),y) -INSTALL_OPTS= -endif - -#------------------------------------------------------------ -# Make the output nice and tight -MAKEFLAGS += --no-print-directory -export MAKE_IS_SILENT=n -ifneq ($(findstring s,$(MAKEFLAGS)),) -export MAKE_IS_SILENT=y -SECHO := @-false -DISP := sil -Q := @ -else -ifneq ($(BUILD_VERBOSE),) -SECHO := @-false -DISP := ver -Q := -else -SECHO := @echo -DISP := pur -Q := @ -endif -endif - -show_objs = $(subst $(top_builddir)/,,$(subst ../,,$@)) -pur_disp_compile.c = echo " "CC $(show_objs) ; -pur_disp_compile.h = echo " "HOSTCC $(show_objs) ; -pur_disp_strip = echo " "STRIP $(show_objs) ; -pur_disp_link = echo " "LINK $(show_objs) ; -pur_disp_link.h = echo " "HOSTLINK $(show_objs) ; -pur_disp_ar = echo " "AR $(ARFLAGS) $(show_objs) ; -pur_disp_elf2flt = echo " "ELF2FLT $(ELF2FLTFLAGS) $(show_objs) ; -sil_disp_compile.c = -sil_disp_compile.h = -sil_disp_strip = -sil_disp_link = -sil_disp_link.h = -sil_disp_ar = -sil_disp_elf2flt = -ver_disp_compile.c = -ver_disp_compile.h = -ver_disp_strip = -ver_disp_link = -ver_disp_link.h = -ver_disp_ar = -ver_disp_elf2flt = -disp_compile.c = $(Q)$($(DISP)_disp_compile.c) -disp_compile.h = $(Q)$($(DISP)_disp_compile.h) -disp_strip = $(Q)$($(DISP)_disp_strip) -disp_link = $(Q)$($(DISP)_disp_link) -disp_link.h = $(Q)$($(DISP)_disp_link.h) -disp_ar = $(Q)$($(DISP)_disp_ar) -disp_elf2flt = $(Q)$($(DISP)_disp_elf2flt) -disp_gen = $(SECHO) " "GEN $@ ; true -disp_doc = $(SECHO) " "DOC $(subst docs/,,$@) ; true -cmd_compile.c = $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $< -cmd_compile.h = $(HOSTCC) $(HOSTCFLAGS) $(INCS) -c -o $@ $< -cmd_strip = $(STRIPCMD) $@ -cmd_link = $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) \ - $(PROG_CFLAGS) $(PROG_LDFLAGS) $(CFLAGS_COMBINE) \ - -o $@ $(LD_START_GROUP) \ - $(APPLETS_DEFINE) $(APPLET_SRC) \ - $(BUSYBOX_DEFINE) $(BUSYBOX_SRC) $(libraries-y) \ - $(LDBUSYBOX) $(LIBRARIES) \ - $(LD_END_GROUP) -cmd_link.so = $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) \ - $(LIB_CFLAGS) $(CFLAGS_COMBINE) $(LIB_LDFLAGS) \ - -o $(@) $(LD_START_GROUP) $(LD_WHOLE_ARCHIVE) \ - $(LIBRARY_DEFINE) $(^) \ - $(LD_NO_WHOLE_ARCHIVE) $(LD_END_GROUP) -cmd_link.h = $(HOSTCC) $(HOSTCFLAGS) $(INCS) $< -o $@ -cmd_ar = $(AR) $(ARFLAGS) $@ $^ -cmd_elf2flt = $(ELF2FLT) $(ELF2FLTFLAGS) $< -o $@ -compile.c = $(disp_compile.c) $(cmd_compile.c) -compile.h = $(disp_compile.h) $(cmd_compile.h) -do_strip = $(disp_strip) $(cmd_strip) -do_link = $(disp_link) $(cmd_link) -do_link.so = $(disp_link) $(cmd_link.so) -do_link.h = $(disp_link.h) $(cmd_link.h) -do_ar = $(disp_ar) $(cmd_ar) -do_elf2flt = $(disp_elf2flt) $(cmd_elf2flt) - -uppercase = $(shell echo $1 | $(SED) -e "y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/") -%.a: - @if test -z "$($(call uppercase,$*)_DIR)" ; then \ - echo "Invalid target $@" ; \ - exit 1 ; \ - fi - $(Q)$(MAKE) $($(call uppercase,$*)_DIR)$@ - -.PHONY: dummy |