# 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
# 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,$(TARGET_SUBARCH))
-RUNTIME_PREFIX:=$(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)))))
+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
LIBC := libc
SHARED_LIBNAME := $(LIBC).so.$(ABI_VERSION)
UBACKTRACE_DSO := libubacktrace.so.$(ABI_VERSION)
-ifneq ($(findstring $(TARGET_ARCH) , hppa64 ia64 mips64 powerpc64 s390x sparc64 x86_64 ),)
+
+UCLIBC_LDSO_NAME := ld-uClibc
+ARCH_NATIVE_BIT := 32
+ifneq ($(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
+endif
+
UCLIBC_LDSO := $(UCLIBC_LDSO_NAME).so.$(ABI_VERSION)
NONSHARED_LIBNAME := uclibc_nonshared.a
libc := $(top_builddir)lib/$(SHARED_LIBNAME)
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
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
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%
$(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.
$(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.
# -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
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 ($(TARGET_ARCH),sparc)
CPU_CFLAGS-$(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)
OPTIMIZATION+=-mno-split-addresses
CPU_CFLAGS-$(CONFIG_MIPS_ISA_1)+=-mips1
CPU_CFLAGS-$(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
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
+
$(eval $(call check-gcc-var,$(PIEFLAG_NAME)))
PIEFLAG := $(CFLAG_$(PIEFLAG_NAME))
ifeq ($(PIEFLAG),)
# well as the LD PIE flag (below) because we can't rely on
# gcc passing -pie if we used -fPIE. We need to directly use -pie
# instead of -Wl,-pie as gcc picks up the wrong startfile/endfile
-$(eval $(call cache-output-var,LDPIEFLAG,$(LD) --help 2>/dev/null | grep -q -- -pie && echo "-pie"))
+$(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
# 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)
else
UBACKTRACE_FULL_NAME := $(UBACKTRACE_DSO)
endif
-export UBACKTRACE_ASNEEDED:=$(shell $(LD) --help 2>/dev/null | grep -q -- --as-needed && \
+export UBACKTRACE_ASNEEDED:=$(shell $(CC) -Wl,--help 2>/dev/null | grep -q -- --as-needed && \
echo "GROUP ( AS_NEEDED ( $(UBACKTRACE_FULL_NAME) ) )" || \
echo "GROUP ( $(UBACKTRACE_FULL_NAME) )")
else
SSP_CFLAGS := $(SSP_DISABLE_FLAGS)
endif
-$(eval $(call check-gcc-var,-nostdlib))
-
# Collect all CFLAGS components
CFLAGS := $(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \
-nostdinc -I$(top_builddir)include \
$(eval $(call check-ld-var,--warn-once))
$(eval $(call check-ld-var,--sort-common))
$(eval $(call check-ld-var,--discard-all))
-LDFLAGS_NOSTRIP:=$(CPU_LDFLAGS-y) -shared \
+LDFLAGS_NOSTRIP:=$(LDFLAG-fuse-ld) $(CPU_LDFLAGS-y) -shared \
-Wl,--warn-common $(CFLAG_-Wl--warn-once) -Wl,-z,combreloc
# binutils-2.16.1 warns about ignored sections, 2.16.91.0.3 and newer are ok
#$(eval $(call check-ld-var,--gc-sections))
ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
PTINC:= -I$(top_builddir)$(PTDIR) \
-I$(top_srcdir)$(PTDIR) \
- $(if $(TARGET_ARCH),-I$(top_srcdir)$(PTDIR)/sysdeps/unix/sysv/linux/$(TARGET_ARCH)/$(TARGET_SUBARCH)) \
+ $(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) \
LIBGCC_CFLAGS ?= $(CFLAGS) $(CPU_CFLAGS-y)
$(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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