# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
#
+# check for proper make version
+ifneq ($(findstring 3.7,$(MAKE_VERSION)),)
+$(error Your make is too old $(MAKE_VERSION). Go get at least 3.80)
+endif
+
#-----------------------------------------------------------
# This file contains rules which are shared between multiple
# Makefiles. All normal configuration options live in the
# Select the compiler needed to build binaries for your development system
HOSTCC = gcc
BUILD_CFLAGS = -O2 -Wall
+export ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun.*/sparc/ -e s/sparc.*/sparc/ \
+ -e s/arm.*/arm/ -e s/sa110/arm/ -e s/sh.*/sh/ \
+ -e s/s390x/s390/ -e s/parisc.*/hppa/ \
+ -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
+ -e s/xtensa.*/xtensa/ )
#---------------------------------------------------------
# Make certain these contain a final "/", but no "//"s.
TARGET_ARCH:=$(shell grep -s '^TARGET_ARCH' $(top_builddir)/.config | sed -e 's/^TARGET_ARCH=//' -e 's/"//g')
TARGET_ARCH:=$(strip $(subst ",, $(strip $(TARGET_ARCH))))
+TARGET_SUBARCH:=$(shell grep -s '^TARGET_SUBARCH' $(top_builddir)/.config | sed -e 's/^TARGET_SUBARCH=//' -e 's/"//g')
+TARGET_SUBARCH:=$(strip $(subst ",, $(strip $(TARGET_SUBARCH))))
RUNTIME_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(RUNTIME_PREFIX))))))
DEVEL_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(DEVEL_PREFIX))))))
-KERNEL_SOURCE:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(KERNEL_SOURCE))))))
-export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_SOURCE
+KERNEL_HEADERS:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(KERNEL_HEADERS))))))
+export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_HEADERS
# Now config hard core
MAJOR_VERSION := 0
MINOR_VERSION := 9
-SUBLEVEL := 28
+SUBLEVEL := 29
+EXTRAVERSION :=
VERSION := $(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL)
+ifneq ($(EXTRAVERSION),)
+VERSION := $(VERSION)$(EXTRAVERSION)
+endif
# Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc.
LC_ALL := C
export MAJOR_VERSION MINOR_VERSION SUBLEVEL VERSION LC_ALL
LIBC := libc
SHARED_MAJORNAME := $(LIBC).so.$(MAJOR_VERSION)
-ifneq ($(findstring $(TARGET_ARCH) , hppa64 ia64 mips64 powerpc64 s390x sh64 sparc64 x86_64 ),)
+ifneq ($(findstring $(TARGET_ARCH) , hppa64 ia64 mips64 powerpc64 s390x sparc64 x86_64 ),)
UCLIBC_LDSO_NAME := ld64-uClibc
else
UCLIBC_LDSO_NAME := ld-uClibc
ldso :=
endif
+comma:=,
+space:= #
+
ifndef CROSS
CROSS=$(subst ",, $(strip $(CROSS_COMPILER_PREFIX)))
endif
OPTIMIZATION+=$(call check_gcc,-fno-strength-reduce,)
endif
-PICFLAG:=-fPIC
+CPU_CFLAGS-$(UCLIBC_FORMAT_SHARED_FLAT) += -mid-shared-library
+CPU_CFLAGS-$(UCLIBC_FORMAT_FLAT_SEP_DATA) += -msep-data
+
+PICFLAG-y := -fPIC
+PICFLAG-$(UCLIBC_FORMAT_FDPIC_ELF) := -mfdpic
+PICFLAG := $(PICFLAG-y)
PIEFLAG_NAME:=-fPIE
# Some nice CPU specific optimizations
ifeq ($(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_LDFLAGS-y+=-m32
+ CPU_CFLAGS-y+=-m32
CPU_CFLAGS-$(CONFIG_386)+=-march=i386
CPU_CFLAGS-$(CONFIG_486)+=-march=i486
CPU_CFLAGS-$(CONFIG_ELAN)+=-march=i486
ifeq ($(TARGET_ARCH),arm)
OPTIMIZATION+=-fstrict-aliasing
- CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
- CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
+ CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-Wl,-EL
+ CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-Wl,-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_ARM7TDMI)+=-mtune=arm7tdmi -march=armv4
- 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=armv5
+ CPU_CFLAGS-$(CONFIG_ARM7TDMI)+=-mtune=arm7tdmi -march=armv4t
+ CPU_CFLAGS-$(CONFIG_ARM720T)+=-mtune=arm7tdmi -march=armv4t
+ CPU_CFLAGS-$(CONFIG_ARM920T)+=-mtune=arm9tdmi -march=armv4t
+ CPU_CFLAGS-$(CONFIG_ARM922T)+=-mtune=arm9tdmi -march=armv4t
+ CPU_CFLAGS-$(CONFIG_ARM926T)+=-mtune=arm9tdmi -march=armv5t
+ CPU_CFLAGS-$(CONFIG_ARM10T)+=-mtune=arm10tdmi -march=armv5t
CPU_CFLAGS-$(CONFIG_ARM1136JF_S)+=-mtune=arm1136jf-s -march=armv6
+ CPU_CFLAGS-$(CONFIG_ARM1176JZ_S)+=-mtune=arm1176jz-s -march=armv6
+ CPU_CFLAGS-$(CONFIG_ARM1176JZF_S)+=-mtune=arm1176jzf-s -march=armv6
CPU_CFLAGS-$(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
+ CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=-march=armv5te -Wa,-mcpu=xscale
+ CPU_CFLAGS-$(CONFIG_ARM_IWMMXT)+=-march=iwmmxt -Wa,-mcpu=iwmmxt -mabi=iwmmxt
+ CPU_CFLAGS-$(CONFIG_ARM_CORTEX_M3)+=-mcpu=cortex-m3 -mthumb
+ CPU_CFLAGS-$(CONFIG_ARM_CORTEX_M1)+=-mcpu=cortex-m1 -mthumb
endif
ifeq ($(TARGET_ARCH),mips)
- CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
- CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
+ CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-Wl,-EL
+ CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-Wl,-EB
CPU_CFLAGS-$(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-$(CONFIG_MIPS_ISA_MIPS64)+=-mips64 -mtune=mips32
+ ifeq ($(strip $(ARCH_BIG_ENDIAN)),y)
+ CPU_LDFLAGS-$(CONFIG_MIPS_N64_ABI)+=-Wl,-melf64btsmip
+ CPU_LDFLAGS-$(CONFIG_MIPS_O32_ABI)+=-Wl,-melf32btsmip
+ endif
+ ifeq ($(strip $(ARCH_LITTLE_ENDIAN)),y)
+ CPU_LDFLAGS-$(CONFIG_MIPS_N64_ABI)+=-Wl,-melf64ltsmip
+ CPU_LDFLAGS-$(CONFIG_MIPS_O32_ABI)+=-Wl,-melf32ltsmip
+ endif
+ CPU_CFLAGS-$(CONFIG_MIPS_N64_ABI)+=-mabi=64
+ CPU_CFLAGS-$(CONFIG_MIPS_O32_ABI)+=-mabi=32
+ CPU_CFLAGS-$(CONFIG_MIPS_N32_ABI)+=-mabi=n32
endif
ifeq ($(TARGET_ARCH),nios)
- CPU_LDFLAGS-y+=-m32
- CPU_CFLAGS-y+=-m32
+ CPU_LDFLAGS-y+=-Wl,-m32
+ CPU_CFLAGS-y+=-Wl,-m32
endif
ifeq ($(TARGET_ARCH),sh)
OPTIMIZATION+=-fstrict-aliasing
OPTIMIZATION+= $(call check_gcc,-mprefergot,)
- CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
- CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
+ CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-Wl,-EL
+ CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-Wl,-EB
CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-ml
CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mb
CPU_CFLAGS-$(CONFIG_SH2)+=-m2
ifeq ($(TARGET_ARCH),sh64)
OPTIMIZATION+=-fstrict-aliasing
- CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN):=-EL
- CPU_LDFLAGS-$(ARCH_BIG_ENDIAN):=-EB
+ CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN):=-Wl,-EL
+ CPU_LDFLAGS-$(ARCH_BIG_ENDIAN):=-Wl,-EB
CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN):=-ml
CPU_CFLAGS-$(ARCH_BIG_ENDIAN):=-mb
CPU_CFLAGS-$(CONFIG_SH5)+=-m5-32media
endif
ifeq ($(TARGET_ARCH),h8300)
- CPU_LDFLAGS-$(CONFIG_H8300H)+= -ms8300h
- CPU_LDFLAGS-$(CONFIG_H8S) += -ms8300s
+ SYMBOL_PREFIX=_
+ CPU_LDFLAGS-$(CONFIG_H8300H)+= -Wl,-ms8300h
+ CPU_LDFLAGS-$(CONFIG_H8S) += -Wl,-ms8300s
CPU_CFLAGS-$(CONFIG_H8300H) += -mh -mint32
CPU_CFLAGS-$(CONFIG_H8S) += -ms -mint32
endif
ifeq ($(TARGET_ARCH),cris)
- CPU_LDFLAGS-$(CONFIG_CRIS)+=-mcrislinux
- CPU_LDFLAGS-$(CONFIG_CRISV32)+=-mcrislinux
+ CPU_LDFLAGS-$(CONFIG_CRIS)+=-Wl,-mcrislinux
+ CPU_LDFLAGS-$(CONFIG_CRISV32)+=-Wl,-mcrislinux
CPU_CFLAGS-$(CONFIG_CRIS)+=-mlinux
PICFLAG:=-fpic
PIEFLAG_NAME:=-fpie
# faster code.
PICFLAG:=-fpic
PIEFLAG_NAME:=-fpie
+ PPC_HAS_REL16:=$(shell echo -e "\t.text\n\taddis 11,30,_GLOBAL_OFFSET_TABLE_-.@ha" | $(CC) -c -x assembler -o /dev/null - 2> /dev/null && echo -n y || echo -n n)
+ CPU_CFLAGS-$(PPC_HAS_REL16)+= -DHAVE_ASM_PPC_REL16
+ CPU_CFLAGS-$(CONFIG_E500) += "-D__NO_MATH_INLINES -D__NO_LONG_DOUBLE_MATH"
+
endif
ifeq ($(TARGET_ARCH),bfin)
- PICFLAG:=-mfdpic
+ SYMBOL_PREFIX=_
+ifeq ($(UCLIBC_FORMAT_FDPIC_ELF),y)
+ CPU_CFLAGS-y:=-mfdpic
+ CPU_LDFLAGS-y += -Wl,-melf32bfinfd
+ PICFLAG:=-fpic
+ PIEFLAG_NAME:=-fpie
+endif
+ifeq ($(UCLIBC_FORMAT_SHARED_FLAT),y)
+ PICFLAG := -mleaf-id-shared-library
+endif
endif
ifeq ($(TARGET_ARCH),frv)
- CPU_LDFLAGS-$(CONFIG_FRV)+=-melf32frvfd
- CPU_CFLAGS-$(CONFIG_FRV)+=-mfdpic
+ CPU_LDFLAGS-$(CONFIG_FRV)+=-Wl,-melf32frvfd
# Using -pie causes the program to have an interpreter, which is
# forbidden, so we must make do with -shared. Unfortunately,
# -shared by itself would get us global function descriptors
# and calls through PLTs, dynamic resolution of symbols, etc,
# which would break as well, but -Bsymbolic comes to the rescue.
- export LDPIEFLAG:=-shared -Bsymbolic
+ export LDPIEFLAG:=-Wl,-shared -Wl,-Bsymbolic
UCLIBC_LDSO=ld.so.1
endif
+ifeq ($(strip $(TARGET_ARCH)),avr32)
+ CPU_CFLAGS-$(CONFIG_AVR32_AP7) += -march=ap
+ CPU_CFLAGS-$(CONFIG_LINKRELAX) += -mrelax
+ CPU_LDFLAGS-$(CONFIG_LINKRELAX) += --relax
+endif
+
+ifeq ($(TARGET_ARCH),i960)
+ SYMBOL_PREFIX=_
+endif
+
+ifeq ($(TARGET_ARCH),microblaze)
+ SYMBOL_PREFIX=_
+endif
+
+ifeq ($(TARGET_ARCH),v850)
+ SYMBOL_PREFIX=_
+endif
+
# Keep the check_gcc from being needlessly executed
ifndef PIEFLAG
ifneq ($(UCLIBC_BUILD_PIE),y)
# Check for AS_NEEDED support in linker script (binutils>=2.16.1 has it)
ifndef ASNEEDED
-ifneq ($(UCLIBC_HAS_SSP),y)
-export ASNEEDED:=
-else
-export ASNEEDED:=$(shell (LD_TMP=$(mktemp LD_XXXXXX) ; echo "GROUP ( AS_NEEDED ( /usr/lib/libc.so ) )" > $LD_TMP && if $(LD) -T $LD_TMP -o /dev/null > /dev/null 2>&1; then echo "AS_NEEDED ( $(UCLIBC_LDSO) )"; else echo "$(UCLIBC_LDSO)"; fi; rm -f $LD_TMP ) )
-endif
+export ASNEEDED:=$(shell $(LD) --help 2>/dev/null | grep -q -- --as-needed && echo "AS_NEEDED ( $(UCLIBC_LDSO) )" || echo "$(UCLIBC_LDSO)")
endif
# Add a bunch of extra pedantic annoyingly strict checks
ifeq ($(EXTRA_WARNINGS),y)
XWARNINGS+=-Wnested-externs -Wshadow -Wmissing-noreturn -Wmissing-format-attribute -Wformat=2
XWARNINGS+=-Wmissing-prototypes -Wmissing-declarations
+XWARNINGS+=-Wnonnull -Wundef
# works only w/ gcc-3.4 and up, can't be checked for gcc-3.x w/ check_gcc()
#XWARNINGS+=-Wdeclaration-after-statement
endif
SSP_CFLAGS := $(SSP_DISABLE_FLAGS)
endif
+NOSTDLIB_CFLAGS:=$(call check_gcc,-nostdlib,)
# Some nice CFLAGS to work with
CFLAGS := -include $(top_builddir)include/libc-symbols.h \
$(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \
- -fno-builtin -nostdinc -I$(top_builddir)include -I.
+ -fno-builtin -nostdinc -I$(top_builddir)include -I. \
+ -I$(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)
+
+ifneq ($(strip $(UCLIBC_EXTRA_CFLAGS)),"")
+CFLAGS += $(subst ",, $(UCLIBC_EXTRA_CFLAGS))
+endif
LDADD_LIBFLOAT=
ifeq ($(UCLIBC_HAS_SOFT_FLOAT),y)
endif
endif
-# Make sure "char" behavior is the same everywhere
-CFLAGS += -fsigned-char
-
# We need this to be checked within libc-symbols.h
ifneq ($(HAVE_SHARED),y)
CFLAGS += -DSTATIC
endif
-# only i386 is known to work if compile.S gets -D__ASSEMBLER__
-#CFLAGS += $(call check_gcc,-std=c99,)
+CFLAGS += $(call check_gcc,-std=gnu99,)
-LDFLAGS_NOSTRIP:=$(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc
+LDFLAGS_NOSTRIP:=$(CPU_LDFLAGS-y) -Wl,-shared \
+ -Wl,--warn-common -Wl,--warn-once -Wl,-z,combreloc
# binutils-2.16.1 warns about ignored sections, 2.16.91.0.3 and newer are ok
#LDFLAGS_NOSTRIP+=$(call check_ld,--gc-sections)
ifeq ($(UCLIBC_BUILD_RELRO),y)
-LDFLAGS_NOSTRIP+=-z relro
+LDFLAGS_NOSTRIP+=-Wl,-z,relro
endif
ifeq ($(UCLIBC_BUILD_NOW),y)
-LDFLAGS_NOSTRIP+=-z now
+LDFLAGS_NOSTRIP+=-Wl,-z,now
endif
-LDFLAGS:=$(LDFLAGS_NOSTRIP) -z defs
+ifeq ($(LDSO_GNU_HASH_SUPPORT),y)
+# Be sure that binutils support it
+LDFLAGS_GNUHASH:=$(call check_ld,--hash-style=gnu)
+ifeq ($(LDFLAGS_GNUHASH),)
+$(error Your binutils don't support --hash-style option, while you want to use it)
+else
+LDFLAGS_NOSTRIP += -Wl,$(LDFLAGS_GNUHASH)
+endif
+endif
+
+LDFLAGS:=$(LDFLAGS_NOSTRIP) -Wl,-z,defs
ifeq ($(DODEBUG),y)
#CFLAGS += -g3
CFLAGS += -O0 -g3
CFLAGS += $(OPTIMIZATION) $(XARCH_CFLAGS)
endif
ifeq ($(DOSTRIP),y)
-LDFLAGS += -s
+LDFLAGS += -Wl,-s
else
STRIPTOOL := true -Stripping_disabled
endif
DOMULTI:=n
endif
+ifneq ($(strip $(UCLIBC_EXTRA_LDFLAGS)),"")
+LDFLAGS += $(subst ",, $(UCLIBC_EXTRA_LDFLAGS))
+endif
+
ifeq ($(UCLIBC_HAS_THREADS),y)
ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
PTNAME := nptl
PTNAME :=
PTINC :=
endif
+CFLAGS += -I$(KERNEL_HEADERS)
-# Sigh, some stupid versions of gcc can't seem to cope with '-iwithprefix include'
-#CFLAGS+=-iwithprefix include
-CFLAGS+=-isystem $(shell $(CC) -print-file-name=include)
+CFLAGS += -iwithprefix include-fixed -iwithprefix include
ifneq ($(DOASSERTS),y)
CFLAGS+=-DNDEBUG
endif
-# moved from ldso/{ldso,libdl}
-# BEWARE!!! At least mips* will die if -O0 is used!!!
-ifeq ($(TARGET_ARCH),mips)
-CFLAGS:=$(CFLAGS:-O0=-O1)
+ifeq ($(SYMBOL_PREFIX),_)
+CFLAGS+=-D__UCLIBC_UNDERSCORES__
endif
# Keep the check_as from being needlessly executed
SHARED_START_FILES:=$(top_builddir)lib/crti.o $(LIBGCC_DIR)crtbeginS.o
SHARED_END_FILES:=$(LIBGCC_DIR)crtendS.o $(top_builddir)lib/crtn.o
endif
-
-########################################
-#
-# uClinux shared lib support
-#
-
-ifeq ($(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
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