[uclibc-ng.git] / Rules.mak

# Rules.make for uClibc
#
# Copyright (C) 2000 by Lineo, inc.
# Copyright (C) 2000-2002 Erik Andersen <[email protected]>
#
# 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


#--------------------------------------------------------
# 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 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=arm-linux-
# will build uClibc for 'arm'.

ifndef CROSS
CROSS=
endif
CC= $(CROSS)gcc
AR= $(CROSS)ar
LD= $(CROSS)ld
NM= $(CROSS)nm
STRIPTOOL= $(CROSS)strip

INSTALL= install
LN= ln
RM= rm -f

# Select the compiler needed to build binaries for your development system
HOSTCC=gcc
HOSTCFLAGS=-O2 -Wall


#--------------------------------------------------------
# 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:=24
VERSION:=$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL)
# Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc. 
LC_ALL:= C
export MAJOR_VERSION MINOR_VERSION SUBLEVEL VERSION LC_ALL

SHARED_FULLNAME:=libuClibc-$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL).so
SHARED_MAJORNAME:=libc.so.$(MAJOR_VERSION)
UCLIBC_LDSO:=ld-uClibc.so.$(MAJOR_VERSION)
LIBNAME:=libc.a
LIBC:=$(TOPDIR)libc/$(LIBNAME)

# Pull in the user's uClibc configuration
ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
-include $(TOPDIR).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)

# Make certain these contain a final "/", but no "//"s.
TARGET_ARCH:=$(strip $(subst ",, $(strip $(TARGET_ARCH))))
RUNTIME_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(RUNTIME_PREFIX))))))
DEVEL_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(DEVEL_PREFIX))))))
export RUNTIME_PREFIX DEVEL_PREFIX

ARFLAGS:=r

OPTIMIZATION:=
PICFLAG:=-fPIC
# Some nice CPU specific optimizations
ifeq ($(strip $(TARGET_ARCH)),i386)
	OPTIMIZATION+=$(call check_gcc,-mpreferred-stack-boundary=2,)
	OPTIMIZATION+=$(call check_gcc,-falign-jumps=0 -falign-loops=0,-malign-jumps=0 -malign-loops=0)
	CPU_CFLAGS-$(CONFIG_386)+=-march=i386
	CPU_CFLAGS-$(CONFIG_486)+=-march=i486
	CPU_CFLAGS-$(CONFIG_586)+=-march=i586
	CPU_CFLAGS-$(CONFIG_586MMX)+=$(call check_gcc,-march=pentium-mmx,-march=i586)
	CPU_CFLAGS-$(CONFIG_686)+=-march=i686
	CPU_CFLAGS-$(CONFIG_PENTIUMIII)+=$(call check_gcc,-march=pentium3,-march=i686)
	CPU_CFLAGS-$(CONFIG_PENTIUM4)+=$(call check_gcc,-march=pentium4,-march=i686)
	CPU_CFLAGS-$(CONFIG_K6)+=$(call check_gcc,-march=k6,-march=i586)
	CPU_CFLAGS-$(CONFIG_K7)+=$(call check_gcc,-march=athlon,-malign-functions=4 -march=i686)
	CPU_CFLAGS-$(CONFIG_CRUSOE)+=-march=i686 -malign-functions=0 -malign-jumps=0 -malign-loops=0
	CPU_CFLAGS-$(CONFIG_WINCHIPC6)+=$(call check_gcc,-march=winchip-c6,-march=i586)
	CPU_CFLAGS-$(CONFIG_WINCHIP2)+=$(call check_gcc,-march=winchip2,-march=i586)
	CPU_CFLAGS-$(CONFIG_CYRIXIII)+=$(call check_gcc,-march=c3,-march=i586)
endif

ifeq ($(strip $(TARGET_ARCH)),arm)
	OPTIMIZATION+=-fstrict-aliasing
	CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
	CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
	CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-mlittle-endian
	CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mbig-endian
	CPU_CFLAGS-$(CONFIG_GENERIC_ARM)+=
	CPU_CFLAGS-$(CONFIG_ARM610)+=-mtune=arm610 -march=armv3
	CPU_CFLAGS-$(CONFIG_ARM710)+=-mtune=arm710 -march=armv3
	CPU_CFLAGS-$(CONFIG_ARM720T)+=-mtune=arm7tdmi -march=armv4 
	CPU_CFLAGS-$(CONFIG_ARM920T)+=-mtune=arm9tdmi -march=armv4
	CPU_CFLAGS-$(CONFIG_ARM922T)+=-mtune=arm9tdmi -march=armv4
	CPU_CFLAGS-$(CONFIG_ARM926T)+=-mtune=arm9tdmi -march=armv4
	CPU_CFLAGS-$(CONFIG_ARM_SA110)+=-mtune=strongarm110 -march=armv4
	CPU_CFLAGS-$(CONFIG_ARM_SA1100)+=-mtune=strongarm1100 -march=armv4
	CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=$(call check_gcc,-mtune=xscale,-mtune=strongarm110)
	CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=-march=armv4 -Wa,-mcpu=xscale
endif

ifeq ($(strip $(TARGET_ARCH)),mips)
	CPU_CFLAGS-$(CONFIG_MIPS_ISA_1)+=-mips1
	CPU_CFLAGS-$(CONFIG_MIPS_ISA_2)+=-mips2 -mtune=mips2
	CPU_CFLAGS-$(CONFIG_MIPS_ISA_3)+=-mips3 -mtune=mips3
	CPU_CFLAGS-$(CONFIG_MIPS_ISA_4)+=-mips4 -mtune=mips4
	CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS32)+=-mips32 -mtune=mips32
	CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS64)+=-mips64 -mtune=mips32
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
	CPU_CFLAGS-$(CONFIG_SH3)+=-m3
	CPU_CFLAGS-$(CONFIG_SH4)+=-m4
endif

ifeq ($(strip $(TARGET_ARCH)),sh64)
	OPTIMIZATION+=-fstrict-aliasing
	CPU_LDFLAGS-$(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_SH5)+=-m5-32media
endif

ifeq ($(strip $(TARGET_ARCH)),h8300)
	CPU_LDFLAGS-$(CONFIG_H8300H)+= -ms8300h
	CPU_LDFLAGS-$(CONFIG_H8S)   += -ms8300s
	CPU_CFLAGS-$(CONFIG_H8300H) += -mh -mint32 -fsigned-char
	CPU_CFLAGS-$(CONFIG_H8S)    += -ms -mint32 -fsigned-char
endif

ifeq ($(strip $(TARGET_ARCH)),cris)
	CPU_LDFLAGS-$(CONFIG_CRIS)+=-mcrislinux
	CPU_CFLAGS-$(CONFIG_CRIS)+=-mlinux
	PICFLAG=-fpic
endif

# use '-Os' optimization if available, else use -O2, allow Config to override
OPTIMIZATION+=$(call check_gcc,-Os,-O2)


# Add a bunch of extra pedantic annoyingly strict checks
XWARNINGS=$(subst ",, $(strip $(WARNINGS))) -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
XARCH_CFLAGS=$(subst ",, $(strip $(ARCH_CFLAGS)))
CPU_CFLAGS=$(subst ",, $(strip $(CPU_CFLAGS-y)))

LDADD_LIBFLOAT=
ifeq ($(strip $(UCLIBC_HAS_SOFT_FLOAT)),y)
# Add -msoft-float to the CPU_FLAGS since ldso and libdl ignore CFLAGS.
# If -msoft-float isn't supported, we want an error anyway.
    CPU_CFLAGS += -msoft-float
ifeq ($(strip $(TARGET_ARCH)),arm)
    LDADD_LIBFLOAT=-lfloat
endif
endif

# Some nice CFLAGS to work with
CFLAGS=$(XWARNINGS) $(OPTIMIZATION) $(XARCH_CFLAGS) $(CPU_CFLAGS) \
	-fno-builtin -nostdinc -D_LIBC -I$(TOPDIR)include -I.

ifeq ($(DODEBUG),y)
    #CFLAGS += -g3
    CFLAGS = $(XWARNINGS) -O0 -g3 $(CPU_CFLAGS) -fno-builtin -nostdinc -D_LIBC -I$(TOPDIR)include -I.
    LDFLAGS:= $(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc
    STRIPTOOL:= true -Since_we_are_debugging
else
    LDFLAGS := $(CPU_LDFLAGS-y) -s -shared --warn-common --warn-once -z combreloc
endif

# Sigh, some stupid versions of gcc can't seem to cope with '-iwithprefix include'
#CFLAGS+=-iwithprefix include
CFLAGS+=$(shell $(CC) -print-search-dirs | sed -ne "s/install: *\(.*\)/-I\1include/gp")

ifneq ($(DOASSERTS),y)
    CFLAGS += -DNDEBUG
endif

ifeq ($(HAVE_SHARED),y)
    LIBRARY_CACHE:=#-DUSE_CACHE
    ifeq ($(BUILD_UCLIBC_LDSO),y)
	LDSO:=$(TOPDIR)lib/$(UCLIBC_LDSO)
	DYNAMIC_LINKER:=$(SHARED_LIB_LOADER_PREFIX)/$(UCLIBC_LDSO)
    else
	LDSO:=$(SYSTEM_LDSO)
	DYNAMIC_LINKER:=/lib/$(strip $(subst ",, $(notdir $(SYSTEM_LDSO))))
   endif
endif

CFLAGS_NOPIC:=$(CFLAGS)
ifeq ($(DOPIC),y)
    CFLAGS += $(PICFLAG)
endif

LIBGCC_CFLAGS ?= $(CFLAGS) $(CPU_CFLAGS-y)
LIBGCC:=$(shell $(CC) $(LIBGCC_CFLAGS) -print-libgcc-file-name)
LIBGCC_DIR:=$(dir $(LIBGCC))

########################################
#
# uClinux shared lib support
#

ifeq ($(CONFIG_BINFMT_SHARED_FLAT),y)
  # For the shared version of this, we specify no stack and its library ID
  FLTFLAGS += -s 0
  LIBID=1
  export LIBID FLTFLAGS
  SHARED_TARGET = lib/libc
endif

TARGET_ARCH:=$(strip $(subst ",, $(strip $(TARGET_ARCH))))
Commit	Line	Data
2c8e931c	1	# Rules.make for uClibc
af1112c8	2	#
5a653498	3	# Copyright (C) 2000 by Lineo, inc.
58bd16ab	4	# Copyright (C) 2000-2002 Erik Andersen <[email protected]>
af1112c8 EA	5	#
	6	# This program is free software; you can redistribute it and/or modify it under
	7	# the terms of the GNU Library General Public License as published by the Free
	8	# Software Foundation; either version 2 of the License, or (at your option) any
	9	# later version.
	10	#
	11	# This program is distributed in the hope that it will be useful, but WITHOUT
	12	# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
91102e0d	13	# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
af1112c8 EA	14	# details.
af1112c8 EA	15	#
4d45bcff EA	16	# You should have received a copy of the GNU Library General Public License
	17	# along with this program; if not, write to the Free Software Foundation, Inc.,
	18	# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
af1112c8	19
f149abb8 EA	20
	21	#--------------------------------------------------------
	22	# This file contains rules which are shared between multiple Makefiles.
	23	# All normal configuration options live in the file named ".config".
	24	# Don't mess with this file unless you know what you are doing.
	25
	26
	27	#--------------------------------------------------------
	28	# If you are running a cross compiler, you will want to set 'CROSS'
6737908f	29	# to something more interesting... Target architecture is determined
f149abb8 EA	30	# by asking the CC compiler what arch it compiles things for, so unless
	31	# your compiler is broken, you should not need to specify TARGET_ARCH
	32	#
	33	# Most people will set this stuff on the command line, i.e.
f21f7c41 EA	34	# make CROSS=arm-linux-
f21f7c41 EA	35	# will build uClibc for 'arm'.
f149abb8	36
b2eb218f	37	ifndef CROSS
6737908f	38	CROSS=
b2eb218f	39	endif
881e6dca EA	40	CC= $(CROSS)gcc
	41	AR= $(CROSS)ar
	42	LD= $(CROSS)ld
	43	NM= $(CROSS)nm
	44	STRIPTOOL= $(CROSS)strip
6737908f	45
49f0dd0f	46	INSTALL= install
ff23ecf6	47	LN= ln
dd3fb0f8	48	RM= rm -f
49f0dd0f	49
6737908f	50	# Select the compiler needed to build binaries for your development system
8fc69335 EA	51	HOSTCC=gcc
8fc69335 EA	52	HOSTCFLAGS=-O2 -Wall
6737908f	53
af1112c8	54
f149abb8 EA	55	#--------------------------------------------------------
	56	# Nothing beyond this point should ever be touched by mere mortals.
	57	# Unless you hang out with the gods, you should probably leave all
	58	# this stuff alone.
5739992b	59	MAJOR_VERSION:=0
58bd16ab	60	MINOR_VERSION:=9
eee33ffc	61	SUBLEVEL:=24
58bd16ab	62	VERSION:=$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL)
8fb868ce EA	63	# Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc.
8fb868ce EA	64	LC_ALL:= C
f5636fb2	65	export MAJOR_VERSION MINOR_VERSION SUBLEVEL VERSION LC_ALL
58bd16ab	66
58bd16ab	67	SHARED_FULLNAME:=libuClibc-$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL).so
5739992b EA	68	SHARED_MAJORNAME:=libc.so.$(MAJOR_VERSION)
5739992b EA	69	UCLIBC_LDSO:=ld-uClibc.so.$(MAJOR_VERSION)
6737908f EA	70	LIBNAME:=libc.a
6737908f EA	71	LIBC:=$(TOPDIR)libc/$(LIBNAME)
c75d8083	72
6737908f EA	73	# Pull in the user's uClibc configuration
6737908f EA	74	ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
6737908f EA	75	-include $(TOPDIR).config
	76	endif
	77
efe79476 EA	78	# A nifty macro to make testing gcc features easier
	79	check_gcc=$(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; \
	80	then echo "$(1)"; else echo "$(2)"; fi)
	81
f8a3fa02	82	# Make certain these contain a final "/", but no "//"s.
52214b70	83	TARGET_ARCH:=$(strip $(subst ",, $(strip $(TARGET_ARCH))))
f8a3fa02 EA	84	RUNTIME_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(RUNTIME_PREFIX))))))
	85	DEVEL_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(DEVEL_PREFIX))))))
	86	export RUNTIME_PREFIX DEVEL_PREFIX
aa966844 EA	87
	88	ARFLAGS:=r
	89
efe79476	90	OPTIMIZATION:=
ecbc93c3	91	PICFLAG:=-fPIC
0c6405c1	92	# Some nice CPU specific optimizations
06d634ea	93	ifeq ($(strip $(TARGET_ARCH)),i386)
efe79476	94	OPTIMIZATION+=$(call check_gcc,-mpreferred-stack-boundary=2,)
0c6405c1	95	OPTIMIZATION+=$(call check_gcc,-falign-jumps=0 -falign-loops=0,-malign-jumps=0 -malign-loops=0)
6a2d1ca4 EA	96	CPU_CFLAGS-$(CONFIG_386)+=-march=i386
	97	CPU_CFLAGS-$(CONFIG_486)+=-march=i486
	98	CPU_CFLAGS-$(CONFIG_586)+=-march=i586
	99	CPU_CFLAGS-$(CONFIG_586MMX)+=$(call check_gcc,-march=pentium-mmx,-march=i586)
	100	CPU_CFLAGS-$(CONFIG_686)+=-march=i686
	101	CPU_CFLAGS-$(CONFIG_PENTIUMIII)+=$(call check_gcc,-march=pentium3,-march=i686)
	102	CPU_CFLAGS-$(CONFIG_PENTIUM4)+=$(call check_gcc,-march=pentium4,-march=i686)
	103	CPU_CFLAGS-$(CONFIG_K6)+=$(call check_gcc,-march=k6,-march=i586)
	104	CPU_CFLAGS-$(CONFIG_K7)+=$(call check_gcc,-march=athlon,-malign-functions=4 -march=i686)
	105	CPU_CFLAGS-$(CONFIG_CRUSOE)+=-march=i686 -malign-functions=0 -malign-jumps=0 -malign-loops=0
	106	CPU_CFLAGS-$(CONFIG_WINCHIPC6)+=$(call check_gcc,-march=winchip-c6,-march=i586)
	107	CPU_CFLAGS-$(CONFIG_WINCHIP2)+=$(call check_gcc,-march=winchip2,-march=i586)
	108	CPU_CFLAGS-$(CONFIG_CYRIXIII)+=$(call check_gcc,-march=c3,-march=i586)
06d634ea	109	endif
0c6405c1 EA	110
	111	ifeq ($(strip $(TARGET_ARCH)),arm)
	112	OPTIMIZATION+=-fstrict-aliasing
6a2d1ca4 EA	113	CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
	114	CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
	115	CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-mlittle-endian
	116	CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mbig-endian
	117	CPU_CFLAGS-$(CONFIG_GENERIC_ARM)+=
	118	CPU_CFLAGS-$(CONFIG_ARM610)+=-mtune=arm610 -march=armv3
	119	CPU_CFLAGS-$(CONFIG_ARM710)+=-mtune=arm710 -march=armv3
	120	CPU_CFLAGS-$(CONFIG_ARM720T)+=-mtune=arm7tdmi -march=armv4
	121	CPU_CFLAGS-$(CONFIG_ARM920T)+=-mtune=arm9tdmi -march=armv4
	122	CPU_CFLAGS-$(CONFIG_ARM922T)+=-mtune=arm9tdmi -march=armv4
	123	CPU_CFLAGS-$(CONFIG_ARM926T)+=-mtune=arm9tdmi -march=armv4
	124	CPU_CFLAGS-$(CONFIG_ARM_SA110)+=-mtune=strongarm110 -march=armv4
	125	CPU_CFLAGS-$(CONFIG_ARM_SA1100)+=-mtune=strongarm1100 -march=armv4
da19a2df EA	126	CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=$(call check_gcc,-mtune=xscale,-mtune=strongarm110)
da19a2df EA	127	CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=-march=armv4 -Wa,-mcpu=xscale
0c6405c1 EA	128	endif
0c6405c1 EA	129
f6552f74 MNI	130	ifeq ($(strip $(TARGET_ARCH)),mips)
	131	CPU_CFLAGS-$(CONFIG_MIPS_ISA_1)+=-mips1
	132	CPU_CFLAGS-$(CONFIG_MIPS_ISA_2)+=-mips2 -mtune=mips2
	133	CPU_CFLAGS-$(CONFIG_MIPS_ISA_3)+=-mips3 -mtune=mips3
	134	CPU_CFLAGS-$(CONFIG_MIPS_ISA_4)+=-mips4 -mtune=mips4
	135	CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS32)+=-mips32 -mtune=mips32
	136	CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS64)+=-mips64 -mtune=mips32
	137	endif
	138
d1990393	139	ifeq ($(strip $(TARGET_ARCH)),sh)
0c6405c1	140	OPTIMIZATION+=-fstrict-aliasing
f149abb8	141	OPTIMIZATION+= $(call check_gcc,-mprefergot,)
6a2d1ca4 EA	142	CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
	143	CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
	144	CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-ml
	145	CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mb
	146	CPU_CFLAGS-$(CONFIG_SH2)+=-m2
	147	CPU_CFLAGS-$(CONFIG_SH3)+=-m3
	148	CPU_CFLAGS-$(CONFIG_SH4)+=-m4
533d76fb EA	149	endif
	150
	151	ifeq ($(strip $(TARGET_ARCH)),sh64)
	152	OPTIMIZATION+=-fstrict-aliasing
6a2d1ca4 EA	153	CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN):=-EL
	154	CPU_LDFLAGS-$(ARCH_BIG_ENDIAN):=-EB
	155	CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN):=-ml
	156	CPU_CFLAGS-$(ARCH_BIG_ENDIAN):=-mb
	157	CPU_CFLAGS-$(CONFIG_SH5)+=-m5-32media
5a2610fb	158	endif
163df9f2	159
de2abcca	160	ifeq ($(strip $(TARGET_ARCH)),h8300)
6a2d1ca4 EA	161	CPU_LDFLAGS-$(CONFIG_H8300H)+= -ms8300h
6a2d1ca4 EA	162	CPU_LDFLAGS-$(CONFIG_H8S) += -ms8300s
dd7edf2e DM	163	CPU_CFLAGS-$(CONFIG_H8300H) += -mh -mint32 -fsigned-char
dd7edf2e DM	164	CPU_CFLAGS-$(CONFIG_H8S) += -ms -mint32 -fsigned-char
de2abcca EA	165	endif
de2abcca EA	166
afb1cd9b	167	ifeq ($(strip $(TARGET_ARCH)),cris)
6a2d1ca4 EA	168	CPU_LDFLAGS-$(CONFIG_CRIS)+=-mcrislinux
6a2d1ca4 EA	169	CPU_CFLAGS-$(CONFIG_CRIS)+=-mlinux
d85d26f8	170	PICFLAG=-fpic
afb1cd9b TA	171	endif
afb1cd9b TA	172
956574dc EA	173	# use '-Os' optimization if available, else use -O2, allow Config to override
956574dc EA	174	OPTIMIZATION+=$(call check_gcc,-Os,-O2)
bddae88b EA	175
bddae88b EA	176
aa966844	177	# Add a bunch of extra pedantic annoyingly strict checks
b340985b EA	178	XWARNINGS=$(subst ",, $(strip $(WARNINGS))) -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
b340985b EA	179	XARCH_CFLAGS=$(subst ",, $(strip $(ARCH_CFLAGS)))
c52c2a24	180	CPU_CFLAGS=$(subst ",, $(strip $(CPU_CFLAGS-y)))
53d8027c MNI	181
	182	LDADD_LIBFLOAT=
	183	ifeq ($(strip $(UCLIBC_HAS_SOFT_FLOAT)),y)
	184	# Add -msoft-float to the CPU_FLAGS since ldso and libdl ignore CFLAGS.
	185	# If -msoft-float isn't supported, we want an error anyway.
	186	CPU_CFLAGS += -msoft-float
	187	ifeq ($(strip $(TARGET_ARCH)),arm)
	188	LDADD_LIBFLOAT=-lfloat
	189	endif
	190	endif
	191
e75a596e	192	# Some nice CFLAGS to work with
6a2d1ca4	193	CFLAGS=$(XWARNINGS) $(OPTIMIZATION) $(XARCH_CFLAGS) $(CPU_CFLAGS) \
b340985b	194	-fno-builtin -nostdinc -D_LIBC -I$(TOPDIR)include -I.
aa966844	195
98fd3d6c	196	ifeq ($(DODEBUG),y)
548a9b72 EA	197	#CFLAGS += -g3
548a9b72 EA	198	CFLAGS = $(XWARNINGS) -O0 -g3 $(CPU_CFLAGS) -fno-builtin -nostdinc -D_LIBC -I$(TOPDIR)include -I.
98fd3d6c EA	199	LDFLAGS:= $(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc
98fd3d6c EA	200	STRIPTOOL:= true -Since_we_are_debugging
98fd3d6c EA	201	else
	202	LDFLAGS := $(CPU_LDFLAGS-y) -s -shared --warn-common --warn-once -z combreloc
	203	endif
	204
4775ec64 EA	205	# Sigh, some stupid versions of gcc can't seem to cope with '-iwithprefix include'
4775ec64 EA	206	#CFLAGS+=-iwithprefix include
44835a91	207	CFLAGS+=$(shell $(CC) -print-search-dirs \| sed -ne "s/install: \(.\)/-I\1include/gp")
4775ec64	208
98fd3d6c	209	ifneq ($(DOASSERTS),y)
0dd72555 MB	210	CFLAGS += -DNDEBUG
0dd72555 MB	211	endif
c5207a55	212
98fd3d6c	213	ifeq ($(HAVE_SHARED),y)
5739992b	214	LIBRARY_CACHE:=#-DUSE_CACHE
98fd3d6c	215	ifeq ($(BUILD_UCLIBC_LDSO),y)
99dd5f42	216	LDSO:=$(TOPDIR)lib/$(UCLIBC_LDSO)
f8a3fa02	217	DYNAMIC_LINKER:=$(SHARED_LIB_LOADER_PREFIX)/$(UCLIBC_LDSO)
5811a4e8	218	else
99dd5f42	219	LDSO:=$(SYSTEM_LDSO)
b6127d0d	220	DYNAMIC_LINKER:=/lib/$(strip $(subst ",, $(notdir $(SYSTEM_LDSO))))
99dd5f42	221	endif
eba708a6	222	endif
f72338a3	223
7993e170	224	CFLAGS_NOPIC:=$(CFLAGS)
98fd3d6c	225	ifeq ($(DOPIC),y)
ecbc93c3	226	CFLAGS += $(PICFLAG)
afb1cd9b TA	227	endif
afb1cd9b TA	228
881e6dca	229	LIBGCC_CFLAGS ?= $(CFLAGS) $(CPU_CFLAGS-y)
f149abb8 EA	230	LIBGCC:=$(shell $(CC) $(LIBGCC_CFLAGS) -print-libgcc-file-name)
	231	LIBGCC_DIR:=$(dir $(LIBGCC))
	232
b2eb218f DM	233	########################################
	234	#
	235	# uClinux shared lib support
	236	#
	237
dd7edf2e	238	ifeq ($(CONFIG_BINFMT_SHARED_FLAT),y)
b2eb218f DM	239	# For the shared version of this, we specify no stack and its library ID
	240	FLTFLAGS += -s 0
	241	LIBID=1
	242	export LIBID FLTFLAGS
	243	SHARED_TARGET = lib/libc
	244	endif
	245
f8a3fa02 EA	246	TARGET_ARCH:=$(strip $(subst ",, $(strip $(TARGET_ARCH))))
f8a3fa02 EA	247