# 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) 2000,2001 Erik Andersen <andersee@debian.org> # # This program is free software; you can redistribute it and/or modify it under # the terms of the GNU Library 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 Library General Public License for more # details. # # You should have received a copy of the GNU Library 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 # include $(TOPDIR)Config MAJOR_VERSION=0 MINOR_VERSION=9.9 VERSION=$(MAJOR_VERSION).$(MINOR_VERSION) LIBNAME=libc.a SHARED_FULLNAME=libuClibc-$(MAJOR_VERSION).$(MINOR_VERSION).so SHARED_MAJORNAME=libc.so.$(MAJOR_VERSION) UCLIBC_LDSO=ld-uClibc.so.$(MAJOR_VERSION) LIBC=$(TOPDIR)libc/libc.a BUILDTIME = ${shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z"} GCCINCDIR = ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"} NATIVE_ARCH = ${shell uname -m | sed \ -e 's/i.86/i386/' \ -e 's/sparc.*/sparc/' \ -e 's/arm.*/arm/g' \ -e 's/m68k.*/m68k/' \ -e 's/ppc/powerpc/g' \ -e 's/v850.*/v850/g' \ -e 's/sh[234]/sh/' \ } ifeq ($(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/' \ } endif # Some nice architecture specific optimizations ifndef OPTIMIZATION # use '-Os' optimization if available, else use -O2, allow Config to override OPTIMIZATION += ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \ then echo "-Os"; else echo "-O2" ; fi} OPTIMIZATION += ${shell if $(CC) -falign-functions=1 -S -o /dev/null -xc \ /dev/null >/dev/null 2>&1; then echo "-falign-functions=1"; fi} ifeq ($(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 $(CC) -malign-functions=0 -malign-jumps=0 -malign-loops=0 \ -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo \ "-malign-functions=0 -malign-jumps=0 -malign-loops=0"; fi} CPUFLAGS+=-pipe else CPUFLAGS+=-pipe endif endif ARFLAGS=r CFLAGS=$(WARNINGS) $(OPTIMIZATION) -fno-builtin -nostdinc $(CPUFLAGS) \ -nostdinc -I$(TOPDIR)include -I$(GCCINCDIR) -I. -D_LIBC $(ARCH_CFLAGS) NATIVE_CFLAGS=-O2 -Wall ifeq ($(strip $(DODEBUG)),true) CFLAGS += -g LDFLAGS = -shared --warn-common --warn-once -z combreloc STRIPTOOL = /bin/true -Since_we_are_debugging else CFLAGS += -DNDEBUG #-fomit-frame-pointer LDFLAGS = -s -shared --warn-common --warn-once -z combreloc endif ifeq ($(strip $(HAVE_SHARED)),true) DOPIC=true LIBRARY_CACHE=#-DUSE_CACHE ifeq ($(strip $(BUILD_UCLIBC_LDSO)),true) LDSO=$(TOPDIR)lib/$(UCLIBC_LDSO) DYNAMIC_LINKER=$(SHARED_LIB_LOADER_PATH)/$(UCLIBC_LDSO) BUILD_DYNAMIC_LINKER=${shell cd $(TOPDIR)lib && pwd}/$(UCLIBC_LDSO) else LDSO=$(SYSTEM_LDSO) DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO)) BUILD_DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO)) endif endif ifeq ($(strip $(DOPIC)),true) CFLAGS += -fPIC endif # 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: # TARGET_PREFIX/ # lib/ <contains all runtime and static libs> # usr/lib/ <this directory is searched for runtime libs> # etc/ <weher the shared library cache and configuration # information go if you enabled LIBRARY_CACHE above> # Very few people will need to change this value from the default... TARGET_PREFIX = /