diff options
Diffstat (limited to 'Rules.mak')
| -rw-r--r-- | Rules.mak | 57 |
1 files changed, 37 insertions, 20 deletions
@@ -1,9 +1,5 @@ # Rules.make for uClibc # -# This file contains rules which are shared between multiple Makefiles. All -# normal configuration options live in the file named "Config". You probably -# should not mess with this file unless you know what you are doing... -# # Copyright (C) 2000 by Lineo, inc. # Copyright (C) 2000-2002 Erik Andersen <andersen@uclibc.org> # @@ -21,23 +17,39 @@ # along with this program; if not, write to the Free Software Foundation, Inc., # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -# If you are running a cross compiler, you may want to set this + +#-------------------------------------------------------- +# This file contains rules which are shared between multiple Makefiles. +# All normal configuration options live in the file named ".config". +# Don't mess with this file unless you know what you are doing. + + +#-------------------------------------------------------- +# If you are running a cross compiler, you will want to set 'CROSS' # to something more interesting... Target architecture is determined -# by asking this compiler what arch it compiles stuff for. +# 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 +# +# Most people will set this stuff on the command line, i.e. +# make CROSS=mipsel-linux- +# will build uClibc for 'mipsel'. + CROSS= -CC = $(CROSS)gcc -AR = $(CROSS)ar -LD = $(CROSS)ld -NM = $(CROSS)nm -STRIPTOOL = $(CROSS)strip -#STRIPTOOL = /bin/true +CC:= $(CROSS)gcc +AR:= $(CROSS)ar +LD:= $(CROSS)ld +NM:= $(CROSS)nm +STRIPTOOL:= $(CROSS)strip # Select the compiler needed to build binaries for your development system -NATIVE_CC = gcc +NATIVE_CC:=gcc NATIVE_CFLAGS:=-O2 -Wall -# Be sure to update include/features.h when changing this... +#-------------------------------------------------------- +# Nothing beyond this point should ever be touched by mere mortals. +# Unless you hang out with the gods, you should probably leave all +# this stuff alone. MAJOR_VERSION:=0 MINOR_VERSION:=9 SUBLEVEL:=15 @@ -51,8 +63,6 @@ SHARED_MAJORNAME:=libc.so.$(MAJOR_VERSION) UCLIBC_LDSO:=ld-uClibc.so.$(MAJOR_VERSION) LIBNAME:=libc.a LIBC:=$(TOPDIR)libc/$(LIBNAME) -LIBGCC:=$(shell $(CC) $(LIBGCC_CFLAGS) -print-libgcc-file-name) -LIBGCC_DIR:=$(dir $(LIBGCC)) # Pull in the user's uClibc configuration ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),) @@ -129,6 +139,9 @@ endif ifeq ($(strip $(TARGET_ARCH)),sh) OPTIMIZATION+=-fstrict-aliasing + OPTIMIZATION+= $(call check_gcc,-mprefergot,) + CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN):="-EL" + CPU_LDFLAGS-$(ARCH_BIG_ENDIAN):="-EB" CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN):="-ml" CPU_CFLAGS-$(ARCH_BIG_ENDIAN):="-mb" CPU_CFLAGS-$(CONFIG_SH2)+="-m2" @@ -151,10 +164,10 @@ CFLAGS+=$(shell $(CC) -print-search-dirs | sed -ne "s/install: *\(.*\)/-I\1inclu ifeq ($(strip $(DODEBUG)),y) CFLAGS += -g - LDFLAGS:= -shared --warn-common --warn-once -z combreloc + LDFLAGS:= $(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc STRIPTOOL:= true -Since_we_are_debugging else - LDFLAGS := -s -shared --warn-common --warn-once -z combreloc + LDFLAGS := $(CPU_LDFLAGS-y) -s -shared --warn-common --warn-once -z combreloc endif ifneq ($(strip $(DOASSERTS)),y) CFLAGS += -DNDEBUG @@ -175,10 +188,14 @@ endif ifeq ($(strip $(DOPIC)),y) CFLAGS += -fPIC endif -ifeq ($(strip $(USE_GCC_SOFT_FLOAT_OPTION)),y) - CFLAGS += -msoft-float +ifeq ($(strip $(UCLIBC_HAS_SOFT_FLOAT)),y) + CFLAGS += $(call check_gcc,-msoft-float,) endif +LIBGCC_CFLAGS ?= $(CFLAGS) +LIBGCC:=$(shell $(CC) $(LIBGCC_CFLAGS) -print-libgcc-file-name) +LIBGCC_DIR:=$(dir $(LIBGCC)) + # TARGET_PREFIX is the directory under which which the uClibc runtime # environment will be installed and used on the target system. The # result will look something like the following: |