# file named ".config". Don't mess with this file unless
# you know what you are doing.
+clean_targets := clean realclean distclean \
+ objclean-y headers_clean-y CLEAN_utils
+noconfig_targets := menuconfig config nconfig \
+ oldaskconfig silentoldconfig oldconfig allnoconfig allyesconfig \
+ alldefconfig randconfig defconfig savedefconfig listnewconfig \
+ olddefconfig \
+ xconfig gconfig update-po-config mconf qconf gconf nconf conf \
+ release dist tags help
+
#-----------------------------------------------------------
# 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
# Select the compiler needed to build binaries for your development system
HOSTCC = gcc
-BUILD_CFLAGS = -Os -Wall
+BUILD_CFLAGS = -Os
#---------------------------------------------------------
# Nothing beyond this point should ever be touched by mere
qstrip = $(strip $(subst ",,$(1)))
#"))
+# kconfig stuff
+KCONFIG_CONFIG ?= $(top_builddir).config
+KCONFIG_CONFIG := $(abspath $(KCONFIG_CONFIG))
+export KCONFIG_CONFIG
+KCONFIG_AUTOCONFIG := $(dir $(KCONFIG_CONFIG))include/config/auto.conf
+export KCONFIG_AUTOCONFIG
+KCONFIG_TRISTATE := $(dir $(KCONFIG_CONFIG))include/config/tristate.conf
+export KCONFIG_TRISTATE
+srctree := $(abspath $(top_srcdir))
+export srctree
+KCONFIG_AUTOHEADER := $(dir $(KCONFIG_CONFIG))include/generated/autoconf.h
+export KCONFIG_AUTOHEADER
+Kconfig := $(abspath $(top_srcdir)extra/Configs/Config.in)
+
# Pull in the user's uClibc configuration
-ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
--include $(top_builddir).config
+ifeq ($(filter $(noconfig_targets) clean CLEAN_%,$(MAKECMDGOALS)),)
+-include $(KCONFIG_CONFIG)
endif
+
TARGET_ARCH:=$(call qstrip,$(TARGET_ARCH))
ifeq ($(TARGET_ARCH),)
ARCH ?= $(shell uname -m | $(SED) -e s/i.86/i386/ \
export ARCH
# Make certain these contain a final "/", but no "//"s.
-TARGET_SUBARCH:=$(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)))))
-KERNEL_HEADERS:=$(strip $(subst //,/, $(subst ,/, $(call qstrip,$(KERNEL_HEADERS)))))
-export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_HEADERS
+scrub_path = $(strip $(subst //,/, $(subst ,/, $(call qstrip,$(1)))))
+TARGET_SUBARCH := $(call qstrip,$(TARGET_SUBARCH))
+RUNTIME_PREFIX := $(call scrub_path,$(RUNTIME_PREFIX))
+DEVEL_PREFIX := $(call scrub_path,$(DEVEL_PREFIX))
+MULTILIB_DIR := $(call scrub_path,$(MULTILIB_DIR))
+KERNEL_HEADERS := $(call scrub_path,$(KERNEL_HEADERS))
+export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_HEADERS MULTILIB_DIR
# Now config hard core
MAJOR_VERSION := 0
MINOR_VERSION := 9
-SUBLEVEL := 30
+SUBLEVEL := 34
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)
-ifneq ($(findstring $(TARGET_ARCH) , hppa64 ia64 mips64 powerpc64 s390x sparc64 x86_64 ),)
+SHARED_LIBNAME := $(LIBC).so.$(ABI_VERSION)
+UBACKTRACE_DSO := libubacktrace.so.$(ABI_VERSION)
+
+UCLIBC_LDSO_NAME := ld-uClibc
+ARCH_NATIVE_BIT := 32
+ifneq ($(findstring $(TARGET_ARCH) , hppa64 ia64 powerpc64 s390x sparc64 x86_64 ),)
UCLIBC_LDSO_NAME := ld64-uClibc
ARCH_NATIVE_BIT := 64
else
-UCLIBC_LDSO_NAME := ld-uClibc
-ARCH_NATIVE_BIT := 32
+ifeq ($(CONFIG_MIPS_N64_ABI),y)
+UCLIBC_LDSO_NAME := ld64-uClibc
+ARCH_NATIVE_BIT := 64
endif
-UCLIBC_LDSO := $(UCLIBC_LDSO_NAME).so.$(MAJOR_VERSION)
+endif
+
+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))
+ifeq ($(CROSS_COMPILE),)
+CROSS_COMPILE=$(call qstrip,$(CROSS_COMPILER_PREFIX))
endif
# A nifty macro to make testing gcc features easier
if $(CC) -Wa,$(1) -Wa,-Z -c -o /dev/null -xassembler /dev/null > /dev/null 2>&1; \
then echo "-Wa,$(1)"; fi)
check_ld=$(shell \
- if $(LD) $(1) -o /dev/null -b binary /dev/null > /dev/null 2>&1; \
+ if $(CC) $(LDFLAG-fuse-ld) -Wl,$(1) $(CFLAG_-nostdlib) -o /dev/null -Wl,-b,binary /dev/null > /dev/null 2>&1; \
then echo "$(1)"; fi)
+# Use variable indirection here so that we can have variable
+# names with fun chars in them like equal signs
+define check-tool-var
+ifeq ($(filter $(clean_targets) CLEAN_%,$(MAKECMDGOALS)),)
+_v = $(2)_$(3)
+ifndef $$(_v)
+$$(_v) := $$(call $(1),$(subst %, ,$(3)))
+export $$(_v)
+endif
+endif
+endef
+
+# Usage: check-gcc-var,<flag>
+# Check the C compiler to see if it supports <flag>.
+# Export the variable CFLAG_<flag> if it does.
+define check-gcc-var
+$(call check-tool-var,check_gcc,CFLAG,$(1))
+endef
+# Usage: check-as-var,<flag>
+# Check the assembler to see if it supports <flag>. Export the
+# variable ASFLAG_<flag> if it does (for invoking the assembler),
+# as well CFLAG_-Wa<flag> (for invoking the compiler driver).
+define check-as-var
+$(call check-tool-var,check_as,ASFLAG,$(1))
+_v = CFLAG_-Wa$(1)
+export $$(_v) = $$(if $$(ASFLAG_$(1)),-Wa$$(comma)$$(ASFLAG_$(1)))
+endef
+# Usage: check-ld-var,<flag>
+# Check the linker to see if it supports <flag>. Export the
+# variable LDFLAG_<flag> if it does (for invoking the linker),
+# as well CFLAG_-Wl<flag> (for invoking the compiler driver).
+define check-ld-var
+$(call check-tool-var,check_ld,LDFLAG,$(1))
+_v = CFLAG_-Wl$(1)
+export $$(_v) = $$(if $$(LDFLAG_$(1)),-Wl$$(comma)$$(LDFLAG_$(1)))
+endef
+# Usage: cache-output-var,<variable>,<shell command>
+# Execute <shell command> and cache the output in <variable>.
+define cache-output-var
+ifndef $(1)
+$(1) := $$(shell $(2))
+export $(1)
+endif
+endef
+
+
ARFLAGS:=cr
+# Note: The check for -nostdlib has to be before all calls to check_ld
+$(eval $(call check-gcc-var,-nostdlib))
+LDFLAG-fuse-ld := $(filter -fuse-ld=%,$(EXTRA_UCLIBC_FLAGS))
+# deliberately not named CFLAG-fuse-ld since unchecked and from user
# Flags in OPTIMIZATION are used only for non-debug builds
OPTIMIZATION:=
# Use '-Os' optimization if available, else use -O2, allow Config to override
-OPTIMIZATION+=$(call check_gcc,-Os,-O2)
+$(eval $(call check-gcc-var,-Os))
+ifneq ($(CFLAG_-Os),)
+OPTIMIZATION += $(CFLAG_-Os)
+else
+$(eval $(call check-gcc-var,-O2))
+OPTIMIZATION += $(CFLAG_-O2)
+endif
# Use the gcc 3.4 -funit-at-a-time optimization when available
-OPTIMIZATION+=$(call check_gcc,-funit-at-a-time,)
+$(eval $(call check-gcc-var,-funit-at-a-time))
+OPTIMIZATION += $(CFLAG_-funit-at-a-time)
# shrinks code by about 0.1%
-OPTIMIZATION+=$(call check_gcc,-fmerge-all-constants)
+$(eval $(call check-gcc-var,-fmerge-all-constants))
+$(eval $(call check-gcc-var,-fstrict-aliasing))
+OPTIMIZATION += $(CFLAG_-fmerge-all-constants) $(CFLAG_-fstrict-aliasing)
-GCC_MAJOR_VER?=$(shell $(CC) -dumpversion | cut -d . -f 1)
-#GCC_MINOR_VER?=$(shell $(CC) -dumpversion | cut -d . -f 2)
+$(eval $(call cache-output-var,GCC_VER,$(CC) -dumpversion))
+GCC_VER := $(subst ., ,$(GCC_VER))
+GCC_MAJOR_VER ?= $(word 1,$(GCC_VER))
+#GCC_MINOR_VER ?= $(word 2,$(GCC_VER))
+ifneq ($(TARGET_ARCH),arc)
ifeq ($(GCC_MAJOR_VER),4)
# shrinks code, results are from 4.0.2
# 0.36%
-OPTIMIZATION+=$(call check_gcc,-fno-tree-loop-optimize,)
+$(eval $(call check-gcc-var,-fno-tree-loop-optimize))
+OPTIMIZATION += $(CFLAG_-fno-tree-loop-optimize)
# 0.34%
-OPTIMIZATION+=$(call check_gcc,-fno-tree-dominator-opts,)
+$(eval $(call check-gcc-var,-fno-tree-dominator-opts))
+OPTIMIZATION += $(CFLAG_-fno-tree-dominator-opts)
# 0.1%
-OPTIMIZATION+=$(call check_gcc,-fno-strength-reduce,)
+$(eval $(call check-gcc-var,-fno-strength-reduce))
+OPTIMIZATION += $(CFLAG_-fno-strength-reduce)
+endif
endif
-
# CPU_CFLAGS-y contain options which are not warnings,
# not include or library paths, and not optimizations.
# sign extension of 'char' type for 10 hours straight. Not fun.
CPU_CFLAGS-y := -funsigned-char -fno-builtin
-CPU_CFLAGS-y += $(call check_gcc,-fno-asm,)
+$(eval $(call check-gcc-var,-fno-asm))
+CPU_CFLAGS-y += $(CFLAG_-fno-asm)
LDADD_LIBFLOAT=
ifeq ($(UCLIBC_HAS_SOFT_FLOAT),y)
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.
endif
endif
-CPU_CFLAGS-y += $(call check_gcc,-std=gnu99,)
+$(eval $(call check-gcc-var,-std=gnu99))
+CPU_CFLAGS-y += $(CFLAG_-std=gnu99)
CPU_CFLAGS-$(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-$(UCLIBC_FORMAT_DSBT_ELF) := -mdsbt -fpic
PICFLAG := $(PICFLAG-y)
PIEFLAG_NAME:=-fPIE
# Some nice CPU specific optimizations
ifeq ($(TARGET_ARCH),i386)
- OPTIMIZATION+=$(call check_gcc,-fomit-frame-pointer,)
+$(eval $(call check-gcc-var,-fomit-frame-pointer))
+ OPTIMIZATION += $(CFLAG_-fomit-frame-pointer)
-ifeq ($(CONFIG_386)$(CONFIG_486)$(CONFIG_586)$(CONFIG_586MMX),y)
+ifeq ($(CONFIG_386)$(CONFIG_486)$(CONFIG_586),y)
+ # TODO: Change this to a gcc version check. This bug
+ # should be fixed with at least gcc-4.3.
# Non-SSE capable processor.
# NB: this may make SSE insns segfault!
# -O1 -march=pentium3, -Os -msse etc are known to be affected.
# -m32 is needed if host is 64-bit
OPTIMIZATION+=$(call check_gcc,-m32 -mpreferred-stack-boundary=2,)
else
- OPTIMIZATION+=$(call check_gcc,-mpreferred-stack-boundary=4,)
+$(eval $(call check-gcc-var,-mpreferred-stack-boundary=4))
+ OPTIMIZATION += $(CFLAG_-mpreferred-stack-boundary=4)
endif
# Choice of alignment (please document why!)
# -falign-jumps: reachable only by a jump
# Generic: no alignment at all (smallest code)
GCC_FALIGN=$(call check_gcc,-falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1,-malign-jumps=1 -malign-loops=1)
-ifeq ($(CONFIG_K7),y)
- # Align functions to four bytes, use default for jumps and loops (why?)
- GCC_FALIGN=$(call check_gcc,-falign-functions=4 -falign-labels=1,-malign-functions=4)
-endif
-ifeq ($(CONFIG_CRUSOE),y)
- # Use compiler's default for functions, jumps and loops (why?)
- GCC_FALIGN=$(call check_gcc,-falign-functions=0 -falign-labels=1,-malign-functions=0)
-endif
-ifeq ($(CONFIG_CYRIXIII),y)
- # Use compiler's default for functions, jumps and loops (why?)
- GCC_FALIGN=$(call check_gcc,-falign-functions=0 -falign-labels=1,-malign-functions=0)
-endif
OPTIMIZATION+=$(GCC_FALIGN)
# Putting each function and data object into its own section
# It specifies 4 byte align for .text even if not told to do so:
# Idx Name Size VMA LMA File off Algn
# 0 .text xxxxxxxx 00000000 00000000 xxxxxxxx 2**2 <===!
- CPU_CFLAGS-y += $(call check_gcc,-ffunction-sections -fdata-sections,)
-ifneq ($(call check_ld,--sort-common),)
- CPU_LDFLAGS-y += -Wl,--sort-common
-endif
-ifneq ($(call check_ld,--sort-section alignment),)
- CPU_LDFLAGS-y += -Wl,--sort-section,alignment
-endif
+ CPU_CFLAGS-y += $(CFLAG_-ffunction-sections) $(CFLAG_-fdata-sections)
+ CPU_LDFLAGS-y += $(CFLAG_-Wl--sort-common)
+$(eval $(call check-ld-var,--sort-section=alignment))
+ CPU_LDFLAGS-y += $(CFLAG_-Wl--sort-section=alignment)
CPU_LDFLAGS-y+=-m32
CPU_CFLAGS-y+=-m32
- CPU_CFLAGS-$(CONFIG_386)+=-march=i386
- CPU_CFLAGS-$(CONFIG_486)+=-march=i486
- CPU_CFLAGS-$(CONFIG_ELAN)+=-march=i486
- 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-$(CONFIG_PENTIUMII)+=$(call check_gcc,-march=pentium2,-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,-march=i686)
- CPU_CFLAGS-$(CONFIG_CRUSOE)+=-march=i686
- CPU_CFLAGS-$(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)+=$(call check_gcc,-march=c3,-march=i486)
- CPU_CFLAGS-$(CONFIG_NEHEMIAH)+=$(call check_gcc,-march=c3-2,-march=i686)
endif
ifeq ($(TARGET_ARCH),sparc)
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 ($(TARGET_ARCH),metag)
+ SYMBOL_PREFIX=_
+ CPU_CFLAGS-$(CONFIG_META_1_2)+=
+ CPU_CFLAGS-$(CONFIG_META_2_1)+=-Wa,-mcpu=metac21
endif
ifeq ($(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-$(CONFIG_MIPS_ISA_3)+=-mips3 -mtune=mips3
CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS32)+=-mips32 -mtune=mips32
CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS32R2)+=-march=mips32r2 -mtune=mips32r2
CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS64)+=-mips64 -mtune=mips32
+ CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS64R2)+=-mips64r2 -mtune=mips64r2
ifeq ($(strip $(ARCH_BIG_ENDIAN)),y)
CPU_LDFLAGS-$(CONFIG_MIPS_N64_ABI)+=-Wl,-melf64btsmip
CPU_LDFLAGS-$(CONFIG_MIPS_O32_ABI)+=-Wl,-melf32btsmip
endif
ifeq ($(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+= $(call check_gcc,-mprefergot,)
+$(eval $(call check-gcc-var,-mprefergot))
+ OPTIMIZATION += $(CFLAG_-mprefergot)
CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-ml
CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mb
CPU_CFLAGS-$(CONFIG_SH2)+=-m2
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 += $(CPU_CFLAGS)
+endif
+
+ifeq ($(TARGET_ARCH),arc)
+ CPU_CFLAGS-y += -mlock -mswape
+ CPU_CFLAGS-$(CONFIG_ARC_CPU_700) += -mA7
+ CPU_LDFLAGS-y += $(CPU_CFLAGS) -marclinux
endif
-# Keep the check_gcc from being needlessly executed
-ifndef PIEFLAG
-export PIEFLAG:=$(call check_gcc,$(PIEFLAG_NAME),$(PICFLAG))
+$(eval $(call check-gcc-var,$(PIEFLAG_NAME)))
+PIEFLAG := $(CFLAG_$(PIEFLAG_NAME))
+ifeq ($(PIEFLAG),)
+PIEFLAG := $(PICFLAG)
endif
# We need to keep track of both the CC PIE flag (above) as
# well as the LD PIE flag (below) because we can't rely on
# gcc passing -pie if we used -fPIE. We need to directly use -pie
# instead of -Wl,-pie as gcc picks up the wrong startfile/endfile
-ifndef LDPIEFLAG
-export LDPIEFLAG:=$(shell $(LD) --help 2>/dev/null | grep -q -- -pie && echo "-pie")
-endif
+$(eval $(call cache-output-var,LDPIEFLAG,$(CC) -Wl$(comma)--help 2>/dev/null | grep -q -- -pie && echo "-pie"))
# Check for --as-needed support in linker
ifndef LD_FLAG_ASNEEDED
-_LD_FLAG_ASNEEDED:=$(shell $(LD) --help 2>/dev/null | grep -- --as-needed)
+_LD_FLAG_ASNEEDED:=$(shell $(CC) -Wl,--help 2>/dev/null | grep -- --as-needed)
ifneq ($(_LD_FLAG_ASNEEDED),)
export LD_FLAG_ASNEEDED:=--as-needed
endif
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)")
+export ASNEEDED:=$(shell $(CC) -Wl,--help 2>/dev/null | grep -q -- --as-needed && echo "AS_NEEDED ( $(UCLIBC_LDSO) )" || echo "$(UCLIBC_LDSO)")
+
+# Only used in installed libc.so linker script
+ifeq ($(UCLIBC_HAS_BACKTRACE),y)
+ifeq ($(HARDWIRED_ABSPATH),y)
+UBACKTRACE_FULL_NAME := $(subst //,/,$(RUNTIME_PREFIX)$(MULTILIB_DIR)/$(UBACKTRACE_DSO))
+else
+UBACKTRACE_FULL_NAME := $(UBACKTRACE_DSO)
+endif
+export UBACKTRACE_ASNEEDED:=$(shell $(CC) -Wl,--help 2>/dev/null | grep -q -- --as-needed && \
+ echo "GROUP ( AS_NEEDED ( $(UBACKTRACE_FULL_NAME) ) )" || \
+ echo "GROUP ( $(UBACKTRACE_FULL_NAME) )")
+else
+export UBACKTRACE_ASNEEDED:=""
+endif
endif
# Add a bunch of extra pedantic annoyingly strict checks
-XWARNINGS=$(call qstrip,$(WARNINGS)) -Wstrict-prototypes -fno-strict-aliasing
+WARNING_FLAGS = -Wstrict-prototypes -Wstrict-aliasing
ifeq ($(EXTRA_WARNINGS),y)
-XWARNINGS+=-Wnested-externs -Wshadow -Wmissing-noreturn -Wmissing-format-attribute -Wformat=2
-XWARNINGS+=-Wmissing-prototypes -Wmissing-declarations
-XWARNINGS+=-Wold-style-declaration -Wold-style-definition
-XWARNINGS+=-Wnonnull -Wundef
+WARNING_FLAGS += \
+ -Wformat=2 \
+ -Wmissing-noreturn \
+ -Wmissing-format-attribute \
+ -Wmissing-prototypes \
+ -Wmissing-declarations \
+ -Wnested-externs \
+ -Wnonnull \
+ -Wold-style-declaration \
+ -Wold-style-definition \
+ -Wshadow \
+ -Wundef
# Works only w/ gcc-3.4 and up, can't be checked for gcc-3.x w/ check_gcc()
-#XWARNINGS+=-Wdeclaration-after-statement
+WARNING_FLAGS-gcc-4 += -Wdeclaration-after-statement
endif
+WARNING_FLAGS += $(WARNING_FLAGS-gcc-$(GCC_MAJOR_VER))
+$(foreach w,$(WARNING_FLAGS),$(eval $(call check-gcc-var,$(w))))
+XWARNINGS = $(call qstrip,$(WARNINGS)) $(foreach w,$(WARNING_FLAGS),$(CFLAG_$(w)))
+
CPU_CFLAGS=$(call qstrip,$(CPU_CFLAGS-y))
-SSP_DISABLE_FLAGS ?= $(call check_gcc,-fno-stack-protector,)
+# Save the tested flag in a single variable and force it to be
+# evaluated just once. Then use that computed value.
+$(eval $(call check-gcc-var,-fno-stack-protector))
+SSP_DISABLE_FLAGS ?= $(CFLAG_-fno-stack-protector)
ifeq ($(UCLIBC_BUILD_SSP),y)
-SSP_CFLAGS := $(call check_gcc,-fno-stack-protector-all,)
-SSP_CFLAGS += $(call check_gcc,-fstack-protector,)
-SSP_ALL_CFLAGS ?= $(call check_gcc,-fstack-protector-all,)
+$(eval $(call check-gcc-var,-fno-stack-protector-all))
+$(eval $(call check-gcc-var,-fstack-protector))
+$(eval $(call check-gcc-var,-fstack-protector-all))
+SSP_CFLAGS := $(CFLAG_-fno-stack-protector-all)
+SSP_CFLAGS += $(CFLAG_-fstack-protector)
+SSP_ALL_CFLAGS ?= $(CFLAG_-fstack-protector-all)
else
SSP_CFLAGS := $(SSP_DISABLE_FLAGS)
endif
-NOSTDLIB_CFLAGS:=$(call check_gcc,-nostdlib,)
-
# Collect all CFLAGS components
-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/$(TARGET_ARCH)
-ifneq ($(strip $(UCLIBC_EXTRA_CFLAGS)),"")
-CFLAGS += $(call qstrip,$(UCLIBC_EXTRA_CFLAGS))
-endif
+CFLAGS := $(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \
+ -nostdinc -I$(top_builddir)include \
+ -I$(top_srcdir)include -include libc-symbols.h \
+ -I$(top_srcdir)libc/sysdeps/linux/$(TARGET_ARCH) \
+ -I$(top_srcdir)libc/sysdeps/linux \
+ -I$(top_srcdir)ldso/ldso/$(TARGET_ARCH) \
+ -I$(top_srcdir)ldso/include -I.
# We need this to be checked within libc-symbols.h
ifneq ($(HAVE_SHARED),y)
CFLAGS += -DSTATIC
endif
-LDFLAG_WARN_ONCE:=$(if $(call check_ld,--warn-once),-Wl$(comma)--warn-once)
-LDFLAG_SORT_COMMON:=$(if $(call check_ld,--sort-common),-Wl$(comma)--sort-common)
-LDFLAG_DISCARD_ALL:=$(if $(call check_ld,--discard-all),-Wl$(comma)--discard-all)
-LDFLAGS_NOSTRIP:=$(CPU_LDFLAGS-y) -shared \
- -Wl,--warn-common $(LDFLAG_WARN_ONCE) -Wl,-z,combreloc
+$(eval $(call check-ld-var,--warn-once))
+$(eval $(call check-ld-var,--sort-common))
+$(eval $(call check-ld-var,--discard-all))
+LDFLAGS_NOSTRIP:=$(LDFLAG-fuse-ld) $(CPU_LDFLAGS-y) -shared \
+ -Wl,--warn-common $(CFLAG_-Wl--warn-once) -Wl,-z,combreloc
# binutils-2.16.1 warns about ignored sections, 2.16.91.0.3 and newer are ok
-#LDFLAGS_NOSTRIP+=$(call check_ld,--gc-sections)
+#$(eval $(call check-ld-var,--gc-sections))
+#LDFLAGS_NOSTRIP += $(LDFLAG_--gc-sections)
+
+$(eval $(call check-gcc-var,-fdata-sections))
+$(eval $(call check-gcc-var,-ffunction-sections))
ifeq ($(UCLIBC_BUILD_RELRO),y)
LDFLAGS_NOSTRIP+=-Wl,-z,relro
ifeq ($(LDSO_GNU_HASH_SUPPORT),y)
# Be sure that binutils support it
-LDFLAGS_GNUHASH:=$(call check_ld,--hash-style=gnu)
-ifeq ($(LDFLAGS_GNUHASH),)
-ifneq ($(filter-out install_headers headers-y,$(MAKECMDGOALS)),)
+$(eval $(call check-ld-var,--hash-style=gnu))
+ifeq ($(LDFLAG_--hash-style=gnu),)
+ifneq ($(filter-out $(clean_targets) CLEAN_% install_headers headers-y,$(MAKECMDGOALS)),)
$(error Your binutils do not support --hash-style option, while you want to use it)
endif
else
-LDFLAGS_NOSTRIP += -Wl,$(LDFLAGS_GNUHASH)
+LDFLAGS_NOSTRIP += $(CFLAG_-Wl--hash-style=gnu)
endif
endif
ifeq ($(GCC_MAJOR_VER),3)
DOMULTI:=n
else
-CFLAGS+=$(call check_gcc,--combine,)
+$(eval $(call check-gcc-var,--combine))
+CFLAGS += $(CFLAG_--combine)
endif
else
DOMULTI:=n
endif
+ifneq ($(strip $(UCLIBC_EXTRA_CFLAGS)),"")
+CFLAGS += $(call qstrip,$(UCLIBC_EXTRA_CFLAGS))
+endif
ifneq ($(strip $(UCLIBC_EXTRA_LDFLAGS)),"")
LDFLAGS += $(call qstrip,$(UCLIBC_EXTRA_LDFLAGS))
endif
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 $(TARGET_SUBARCH),-I$(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/generic \
- -I$(top_srcdir)ldso/ldso/$(TARGET_ARCH) \
- -I$(top_srcdir)ldso/include
+ -I$(top_srcdir)$(PTDIR)/sysdeps/pthread/bits \
+ -I$(top_srcdir)$(PTDIR)/sysdeps/generic
#
# Test for TLS if NPTL support was selected.
#
PTINC :=
endif
CFLAGS += -I$(top_srcdir)libc/sysdeps/linux/common
-CFLAGS += -I$(KERNEL_HEADERS)
#CFLAGS += -iwithprefix include-fixed -iwithprefix include
-CC_IPREFIX := $(shell $(CC) --print-file-name=include)
+$(eval $(call cache-output-var,CC_IPREFIX,$(CC) -print-file-name=include))
CC_INC := -isystem $(dir $(CC_IPREFIX))include-fixed -isystem $(CC_IPREFIX)
CFLAGS += $(CC_INC)
+CFLAGS += -I$(KERNEL_HEADERS)
+
ifneq ($(DOASSERTS),y)
CFLAGS+=-DNDEBUG
endif
endif
# Keep the check_as from being needlessly executed
-ifndef ASFLAGS_NOEXEC
ifeq ($(UCLIBC_BUILD_NOEXECSTACK),y)
-export ASFLAGS_NOEXEC := $(call check_as,--noexecstack)
-else
-export ASFLAGS_NOEXEC :=
-endif
+$(eval $(call check-as-var,--noexecstack))
endif
-ASFLAGS = $(ASFLAGS_NOEXEC)
+ASFLAGS = $(ASFLAG_--noexecstack)
LIBGCC_CFLAGS ?= $(CFLAGS) $(CPU_CFLAGS-y)
-LIBGCC:=$(shell $(CC) $(LIBGCC_CFLAGS) -print-libgcc-file-name)
+$(eval $(call cache-output-var,LIBGCC,$(CC) $(LIBGCC_CFLAGS) -print-libgcc-file-name))
+$(eval $(call cache-output-var,LIBGCC_EH,$(CC) $(LIBGCC_CFLAGS) -print-file-name=libgcc_eh.a))
+# with -O0 we (e.g. lockf) might end up with references to
+# _Unwind_Resume, so pull in gcc_eh in this case..
LIBGCC_DIR:=$(dir $(LIBGCC))
+LIBGCC += $(if $(DODEBUG),$(LIBGCC_EH))
# moved from libpthread/linuxthreads
ifeq ($(UCLIBC_CTOR_DTOR),y)
SHARED_END_FILES:=$(LIBGCC_DIR)crtendS.o $(top_builddir)lib/crtn.o
endif
-LOCAL_INSTALL_PATH := install_dir
+LOCAL_INSTALL_PATH := $(if $(O),$(O)/)install_dir
+
+PTHREAD_GENERATE_MANGLE ?= -n "s/^.*@@@name@@@\([^@]*\)@@@value@@@[^0-9Xxa-fA-F-]*\([0-9Xxa-fA-F-][0-9Xxa-fA-F-]*\).*@@@end@@@.*\$$/\#define \1 \2/p"
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