#-----------------------------------------------------------
# If you are running a cross compiler, you will want to set
-# 'CROSS' to something more interesting ... Target
+# '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.
#
# Most people will set this stuff on the command line, i.e.
-# make CROSS=arm-linux-
+# make CROSS_COMPILE=arm-linux-
# will build uClibc for 'arm'.
+# CROSS is still supported for backward compatibily only
-ifndef CROSS
-CROSS=
-endif
-CC = $(CROSS)gcc
-AR = $(CROSS)ar
-LD = $(CROSS)ld
-NM = $(CROSS)nm
-OBJDUMP = $(CROSS)objdump
-STRIPTOOL = $(CROSS)strip
+CROSS_COMPILE ?= $(CROSS)
+
+CC = $(CROSS_COMPILE)gcc
+AR = $(CROSS_COMPILE)ar
+LD = $(CROSS_COMPILE)ld
+NM = $(CROSS_COMPILE)nm
+OBJDUMP = $(CROSS_COMPILE)objdump
+STRIPTOOL = $(CROSS_COMPILE)strip
INSTALL = install
LN = ln
export ARCH
# Make certain these contain a final "/", but no "//"s.
-TARGET_SUBARCH:=$(call qstrip,$(shell grep -s '^TARGET_SUBARCH' $(top_builddir)/.config | $(SED) -e 's/^TARGET_SUBARCH=//'))
TARGET_SUBARCH:=$(call qstrip,$(TARGET_SUBARCH))
RUNTIME_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(call qstrip,$(RUNTIME_PREFIX)))))
DEVEL_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(call qstrip,$(DEVEL_PREFIX)))))
+MULTILIB_DIR:=$(strip $(subst //,/, $(subst ,/, $(call qstrip,$(MULTILIB_DIR)))))
KERNEL_HEADERS:=$(strip $(subst //,/, $(subst ,/, $(call qstrip,$(KERNEL_HEADERS)))))
-export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_HEADERS
+export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_HEADERS MULTILIB_DIR
# Now config hard core
MAJOR_VERSION := 0
MINOR_VERSION := 9
-SUBLEVEL := 30
+SUBLEVEL := 33
EXTRAVERSION :=-git
VERSION := $(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL)
+ABI_VERSION := $(MAJOR_VERSION)
ifneq ($(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
+export MAJOR_VERSION MINOR_VERSION SUBLEVEL VERSION ABI_VERSION LC_ALL
LIBC := libc
-SHARED_MAJORNAME := $(LIBC).so.$(MAJOR_VERSION)
+SHARED_LIBNAME := $(LIBC).so.$(ABI_VERSION)
+UBACKTRACE_DSO := libubacktrace.so.$(ABI_VERSION)
ifneq ($(findstring $(TARGET_ARCH) , hppa64 ia64 mips64 powerpc64 s390x sparc64 x86_64 ),)
UCLIBC_LDSO_NAME := ld64-uClibc
ARCH_NATIVE_BIT := 64
UCLIBC_LDSO_NAME := ld-uClibc
ARCH_NATIVE_BIT := 32
endif
-UCLIBC_LDSO := $(UCLIBC_LDSO_NAME).so.$(MAJOR_VERSION)
+UCLIBC_LDSO := $(UCLIBC_LDSO_NAME).so.$(ABI_VERSION)
NONSHARED_LIBNAME := uclibc_nonshared.a
-libc := $(top_builddir)lib/$(SHARED_MAJORNAME)
-libc.depend := $(top_builddir)lib/$(SHARED_MAJORNAME:.$(MAJOR_VERSION)=)
+libc := $(top_builddir)lib/$(SHARED_LIBNAME)
+libc.depend := $(top_builddir)lib/$(SHARED_LIBNAME:.$(ABI_VERSION)=)
+ifneq ($(ARCH_HAS_NO_SHARED),y)
+libdl.depend := $(top_builddir)lib/libdl.so
+endif
+ifneq ($(HAS_NO_THREADS),y)
+libpthread.depend := $(top_builddir)lib/libpthread.so
+endif
interp := $(top_builddir)lib/interp.os
ldso := $(top_builddir)lib/$(UCLIBC_LDSO)
headers_dep := $(top_builddir)include/bits/sysnum.h
sub_headers := $(headers_dep)
#LIBS :=$(interp) -L$(top_builddir)lib -lc
-LIBS := $(interp) -L$(top_builddir)lib $(libc:.$(MAJOR_VERSION)=)
+LIBS := $(interp) -L$(top_builddir)lib $(libc:.$(ABI_VERSION)=)
# Make sure DESTDIR and PREFIX can be used to install
# PREFIX is a uClibcism while DESTDIR is a common GNUism
comma:=,
space:= #
-ifndef CROSS
-CROSS=$(call qstrip,$(CROSS_COMPILER_PREFIX))
+ifndef CROSS_COMPILE
+CROSS_COMPILE=$(call qstrip,$(CROSS_COMPILER_PREFIX))
endif
# A nifty macro to make testing gcc features easier
OPTIMIZATION+=$(call check_gcc,-funit-at-a-time,)
# shrinks code by about 0.1%
OPTIMIZATION+=$(call check_gcc,-fmerge-all-constants)
+OPTIMIZATION+=$(call check_gcc,-fstrict-aliasing)
GCC_MAJOR_VER?=$(shell $(CC) -dumpversion | cut -d . -f 1)
#GCC_MINOR_VER?=$(shell $(CC) -dumpversion | cut -d . -f 2)
ifneq ($(TARGET_ARCH),nios)
ifneq ($(TARGET_ARCH),nios2)
ifneq ($(TARGET_ARCH),sh)
+ifneq ($(TARGET_ARCH),c6x)
CPU_CFLAGS-y += -msoft-float
endif
endif
endif
+endif
ifeq ($(TARGET_ARCH),arm)
# No longer needed with current toolchains, but leave it here for now.
# If anyone is actually still using gcc 2.95 (say), they can uncomment it.
CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN) += -Wl,-EL
CPU_LDFLAGS-$(ARCH_BIG_ENDIAN) += -Wl,-EB
-PICFLAG-y := -fPIC -DPIC
+PICFLAG-y := -fPIC
PICFLAG-$(UCLIBC_FORMAT_FDPIC_ELF) := -mfdpic
+PICFLAG-$(UCLIBC_FORMAT_DSBT_ELF) := -mdsbt -fpic
PICFLAG := $(PICFLAG-y)
PIEFLAG_NAME:=-fPIE
endif
ifeq ($(TARGET_ARCH),arm)
- OPTIMIZATION+=-fstrict-aliasing
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=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-$(CONFIG_ARM_XSCALE)+=-march=armv5te -Wa,-mcpu=xscale
- CPU_CFLAGS-$(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
+ CPU_CFLAGS-$(COMPILE_IN_THUMB_MODE)+=-mthumb
endif
ifeq ($(TARGET_ARCH),mips)
- OPTIMIZATIONS+=-mno-split-addresses
+ OPTIMIZATION+=-mno-split-addresses
CPU_CFLAGS-$(CONFIG_MIPS_ISA_1)+=-mips1
CPU_CFLAGS-$(CONFIG_MIPS_ISA_2)+=-mips2 -mtune=mips2
CPU_CFLAGS-$(CONFIG_MIPS_ISA_3)+=-mips3 -mtune=mips3
endif
ifeq ($(TARGET_ARCH),nios)
- OPTIMIZATIONS+=-funaligned-struct-hack
+ OPTIMIZATION+=-funaligned-struct-hack
CPU_LDFLAGS-y+=-Wl,-m32
CPU_CFLAGS-y+=-Wl,-m32
endif
ifeq ($(TARGET_ARCH),sh)
- OPTIMIZATION+=-fstrict-aliasing
OPTIMIZATION+= $(call check_gcc,-mprefergot,)
CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-ml
CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mb
endif
ifeq ($(TARGET_ARCH),sh64)
- OPTIMIZATION+=-fstrict-aliasing
CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN):=-ml
CPU_CFLAGS-$(ARCH_BIG_ENDIAN):=-mb
CPU_CFLAGS-$(CONFIG_SH5)+=-m5-32media
endif
ifeq ($(TARGET_ARCH),i960)
- OPTIMIZATIONS+=-mh -mint32 #-fsigned-char
+ OPTIMIZATION+=-mh -mint32 #-fsigned-char
endif
ifeq ($(TARGET_ARCH),e1)
- OPTIMIZATIONS+=-mgnu-param
+ OPTIMIZATION+=-mgnu-param
endif
ifeq ($(TARGET_ARCH),cris)
SYMBOL_PREFIX=_
endif
-ifeq ($(TARGET_ARCH),microblaze)
+ifeq ($(TARGET_ARCH),v850)
SYMBOL_PREFIX=_
endif
-ifeq ($(TARGET_ARCH),v850)
- SYMBOL_PREFIX=_
+ifeq ($(TARGET_ARCH),c6x)
+ PIEFLAG:=
+ CPU_CFLAGS-$(CONFIG_TMS320C64X) += -march=c64x
+ CPU_CFLAGS-$(CONFIG_TMS320C64XPLUS) += -march=c64x+
+ CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-mlittle-endian
+ CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mbig-endian
+ CPU_LDFLAGS-y += $(CPU_CFLAGS)
endif
# Keep the check_gcc from being needlessly executed
export CC_FLAG_NO_ASNEEDED:=-Wl,$(LD_FLAG_NO_ASNEEDED)
endif
endif
-link.asneeded = $(if $(and $(CC_FLAG_ASNEEDED),$(CC_FLAG_NO_ASNEEDED)),$(CC_FLAG_ASNEEDED) $(1) $(CC_FLAG_NO_ASNEEDED))
+link.asneeded = $(if $(findstring yy,$(CC_FLAG_ASNEEDED)$(CC_FLAG_NO_ASNEEDED)),$(CC_FLAG_ASNEEDED) $(1) $(CC_FLAG_NO_ASNEEDED))
# Check for AS_NEEDED support in linker script (binutils>=2.16.1 has it)
ifndef ASNEEDED
export ASNEEDED:=$(shell $(LD) --help 2>/dev/null | grep -q -- --as-needed && echo "AS_NEEDED ( $(UCLIBC_LDSO) )" || echo "$(UCLIBC_LDSO)")
+ifeq ($(UCLIBC_HAS_BACKTRACE),y)
+# Only used in installed libc.so linker script
+UBACKTRACE_FULL_NAME := $(RUNTIME_PREFIX)lib/$(UBACKTRACE_DSO)
+export UBACKTRACE_ASNEEDED:=$(shell $(LD) --help 2>/dev/null | grep -q -- --as-needed && echo "AS_NEEDED ( $(UBACKTRACE_FULL_NAME) )" || echo "$(UBACKTRACE_FULL_NAME)")
+else
+export UBACKTRACE_ASNEEDED:=""
+endif
endif
# Add a bunch of extra pedantic annoyingly strict checks
-XWARNINGS=$(call qstrip,$(WARNINGS)) -Wstrict-prototypes -fno-strict-aliasing
+XWARNINGS=$(call qstrip,$(WARNINGS))
+XWARNINGS+=$(foreach w,\
+ -Wstrict-prototypes \
+ -Wstrict-aliasing \
+ , $(call check_gcc,$(w),))
ifeq ($(EXTRA_WARNINGS),y)
-XWARNINGS+=-Wnested-externs -Wshadow -Wmissing-noreturn -Wmissing-format-attribute -Wformat=2
-XWARNINGS+=-Wmissing-prototypes -Wmissing-declarations
-XWARNINGS+=-Wnonnull -Wundef
+XWARNINGS+=$(foreach w,\
+ -Wformat=2 \
+ -Wmissing-noreturn \
+ -Wmissing-format-attribute \
+ -Wmissing-prototypes \
+ -Wmissing-declarations \
+ -Wnested-externs \
+ -Wnonnull \
+ -Wold-style-declaration \
+ -Wold-style-definition \
+ -Wshadow \
+ -Wundef \
+ , $(call check_gcc,$(w),))
# Works only w/ gcc-3.4 and up, can't be checked for gcc-3.x w/ check_gcc()
#XWARNINGS+=-Wdeclaration-after-statement
endif
CFLAGS := -include $(top_srcdir)include/libc-symbols.h \
$(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \
-nostdinc -I$(top_builddir)include -I$(top_srcdir)include -I. \
+ -I$(top_srcdir)libc/sysdeps/linux \
-I$(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)
-ifneq ($(strip $(UCLIBC_EXTRA_CFLAGS)),"")
-CFLAGS += $(call qstrip,$(UCLIBC_EXTRA_CFLAGS))
-endif
# We need this to be checked within libc-symbols.h
ifneq ($(HAVE_SHARED),y)
# Be sure that binutils support it
LDFLAGS_GNUHASH:=$(call check_ld,--hash-style=gnu)
ifeq ($(LDFLAGS_GNUHASH),)
-ifneq ($(filter-out install_headers headers-y,$(MAKECMDGOALS)),)
+ifneq ($(filter-out $(clean_targets) install_headers headers-y,$(MAKECMDGOALS)),)
$(error Your binutils do not support --hash-style option, while you want to use it)
endif
else
else
STRIPTOOL := true -Stripping_disabled
endif
+ifneq ($(strip $(UCLIBC_EXTRA_CFLAGS)),"")
+CFLAGS += $(call qstrip,$(UCLIBC_EXTRA_CFLAGS))
+endif
ifeq ($(DOMULTI),y)
# we try to compile all sources at once into an object (IMA), but
ifeq ($(UCLIBC_HAS_THREADS),y)
ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
PTNAME := nptl
+ CFLAGS += -DHAVE_FORCED_UNWIND
else
ifeq ($(LINUXTHREADS_OLD),y)
PTNAME := linuxthreads.old
PTDIR := libpthread/$(PTNAME)
# set up system dependencies include dirs (NOTE: order matters!)
ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
-PTINC:= -I$(top_srcdir)$(PTDIR) \
- -I$(top_srcdir)$(PTDIR)/sysdeps/unix/sysv/linux/$(TARGET_ARCH)/$(TARGET_SUBARCH) \
+PTINC:= -I$(top_builddir)$(PTDIR) \
+ -I$(top_srcdir)$(PTDIR) \
+ $(if $(TARGET_ARCH),-I$(top_srcdir)$(PTDIR)/sysdeps/unix/sysv/linux/$(TARGET_ARCH)/$(TARGET_SUBARCH)) \
-I$(top_srcdir)$(PTDIR)/sysdeps/unix/sysv/linux/$(TARGET_ARCH) \
+ -I$(top_builddir)$(PTDIR)/sysdeps/$(TARGET_ARCH) \
-I$(top_srcdir)$(PTDIR)/sysdeps/$(TARGET_ARCH) \
+ -I$(top_builddir)$(PTDIR)/sysdeps/unix/sysv/linux \
-I$(top_srcdir)$(PTDIR)/sysdeps/unix/sysv/linux \
-I$(top_srcdir)$(PTDIR)/sysdeps/pthread \
- -I$(top_srcdir)$(PTDIR)/sysdeps/pthread/bits \
+ -I$(top_srcdir)$(PTDIR)/sysdeps/pthread/bits \
-I$(top_srcdir)$(PTDIR)/sysdeps/generic \
- -I$(top_srcdir)ldso/ldso/$(TARGET_ARCH) \
+ -I$(top_srcdir)ldso/ldso/$(TARGET_ARCH) \
-I$(top_srcdir)ldso/include
#
# Test for TLS if NPTL support was selected.
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