MAJOR_VERSION :=1
MINOR_VERSION :=2
SUBLEVEL_VERSION:=0
-EXTRAVERSION :=-pre0
+EXTRAVERSION :=
VERSION :=$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL_VERSION)$(EXTRAVERSION)
BUILDTIME := $(shell TZ=UTC date -u "+%Y.%m.%d-%H:%M%z")
# With a modern GNU make(1) (highly recommended, that's what all the
# developers use), all of the following configuration values can be
# overridden at the command line. For example:
-# make CROSS=powerpc-linux- top_srcdir="$HOME/busybox" PREFIX=/mnt/app
+# make CROSS_COMPILE=powerpc-linux- top_srcdir="$HOME/busybox" PREFIX=/mnt/app
#--------------------------------------------------------
-# If you are running a cross compiler, you will want to set 'CROSS'
+# If you are running a cross compiler, you will want to set CROSS_COMPILE
# to something more interesting... Target architecture is determined
# by asking the CC compiler what arch it compiles things for, so unless
# your compiler is broken, you should not need to specify TARGET_ARCH
-CROSS =$(strip $(subst ",, $(strip $(CROSS_COMPILER_PREFIX))))
-# be gentle to vi coloring.. "))
-CC = $(CROSS)gcc
-AR = $(CROSS)ar
-AS = $(CROSS)as
-LD = $(CROSS)ld
-NM = $(CROSS)nm
-STRIP = $(CROSS)strip
-ELF2FLT = $(CROSS)elf2flt
+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 = $(CC) -E
SED ?= sed
BZIP2 ?= bzip2
# Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc.
LC_ALL:= C
-# If you want to add some simple compiler switches (like -march=i686),
-# especially from the command line, use this instead of CFLAGS directly.
-# For optimization overrides, it's better still to set OPTIMIZATION.
-CFLAGS_EXTRA=$(subst ",, $(strip $(EXTRA_CFLAGS_OPTIONS)))
-
-# To compile vs some other alternative libc, you may need to use/adjust
-# the following lines to meet your needs...
-#
-# If you are using Red Hat 6.x with the compatible RPMs (for developing under
-# Red Hat 5.x and glibc 2.0) uncomment the following. Be sure to read about
-# using the compatible RPMs (compat-*) at http://www.redhat.com !
-#LIBCDIR:=/usr/i386-glibc20-linux
-#
-# For other libraries, you are on your own. But these may (or may not) help...
-#LDFLAGS+=-nostdlib
-#LIBRARIES:=$(LIBCDIR)/lib/libc.a -lgcc
-#CROSS_CFLAGS+=-nostdinc -I$(LIBCDIR)/include -I$(GCCINCDIR) -funsigned-char
-#GCCINCDIR:=$(shell gcc -print-search-dirs | $(SED) -ne "s/install: \(.*\)/\1include/gp")
-
# 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
CC_MINOR:=$(shell printf "%02d" $(shell echo __GNUC_MINOR__ | $(CC) -E -xc - | tail -n 1))
#--------------------------------------------------------
-export VERSION BUILDTIME HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP
+export VERSION BUILDTIME HOSTCC HOSTCFLAGS CROSS_COMPILE CC AR AS LD NM STRIP CPP
ifeq ($(strip $(TARGET_ARCH)),)
TARGET_ARCH:=$(shell $(CC) -dumpmachine | $(SED) -e s'/-.*//' \
-e 's/i.86/i386/' \
# A nifty macro to make testing gcc features easier, but note that everything
# that uses this _must_ use := or it will be re-evaluated everytime it is
# referenced.
-ifeq ($(strip $(V)),2)
+ifeq ($(strip $(BUILD_VERBOSE)),2)
VERBOSE_CHECK_CC=echo CC=\"$(1)\" check_cc $(2) >&2;
endif
check_cc=$(shell \
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 $(V)),2)
+ifeq ($(strip $(BUILD_VERBOSE)),2)
VERBOSE_CHECK_LD=echo LD=\"$(1)\" check_ld $(2) >&2;
endif
check_ld=$(shell \
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 $(V)),2)
+ifeq ($(strip $(BUILD_VERBOSE)),2)
VERBOSE_CHECK_STRIP=echo STRIPCMD=\"$(1)\" check_strip $(2) >&2;
endif
check_strip=$(shell \
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
$(AR) $(ARFLAGS) conftest.a conftest.o ; \
$(CC) -Wl,--start-group conftest.a conftest_main.o -Wl,--end-group \
-o conftest > /dev/null 2>&1 && echo "-Wl,--start-group" ; \
- echo rm conftest_main.o conftest_main.c conftest.o conftest.c \
+ rm conftest_main.o conftest_main.c conftest.o conftest.c \
conftest.a conftest > /dev/null 2>&1 ; )
ifneq ($(findstring start-group,$(LD_START_GROUP)),)
LD_END_GROUP:= -Wl,--end-group
CHECKED_CFLAGS+=$(call check_cc,$(CC),-funsigned-char,)
CHECKED_CFLAGS+=$(call check_cc,$(CC),-mmax-stack-frame=256,)
CHECKED_CFLAGS+=$(call check_cc,$(CC),-fno-builtin-strlen)
+CHECKED_CFLAGS+=$(call check_cc,$(CC),-finline-limit=0)
# Preemptively pin this too.
PROG_CFLAGS:=
endif # gcc-4.1 and beyond
endif
OPTIMIZATION+=$(call check_cc,$(CC),-fomit-frame-pointer,)
+OPTIMIZATION+=$(call check_cc,$(CC),-ffunction-sections -fdata-sections,)
#
#--------------------------------------------------------
else
CFLAGS +=-DNDEBUG
CHECKED_LDFLAGS += $(call check_ld,$(LD),--sort-common,)
+ CHECKED_LDFLAGS += $(call check_ld,--gc-sections,)
endif
ifneq ($(strip $(CONFIG_DEBUG_PESSIMIZE)),y)
PREFIX:=`pwd`/_install
endif
-#ifneq ($(strip $(CONFIG_GETOPT_LONG)),y)
-# CFLAGS += -D__need_getopt
-#endif
+ifneq ($(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
# Put user-supplied flags at the end, where they
# have a chance of winning.
-CFLAGS += $(CFLAGS_EXTRA)
+-include $(top_builddir)/.config.mak
#------------------------------------------------------------
# Installation options
DISP := sil
Q := @
else
-ifneq ($(V)$(VERBOSE),)
+ifneq ($(BUILD_VERBOSE),)
SECHO := @-false
DISP := ver
Q :=
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)
+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 $@
compile.h = @$(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 | tr '[:lower:]' '[:upper:]')
+uppercase = $(shell echo $1 | $(SED) -e "y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/")
%.a:
@if test -z "$($(call uppercase,$*)_DIR)" ; then \
echo "Invalid target $@" ; \
projects / oweals / busybox.git / blobdiff