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kumquat-buildroot/package/uclibc/uclibc.mk
Thomas Petazzoni 696db77484 uclibc: context functions are not Thumb-compatible 
The context functions in uClibc unconditionally use the classic ARM
instruction set.

On platforms that do support the ARM instruction set, there is no problem -
However, on platforms that only support the Thumb instruction set, the
context functions cannot be built since the assembler code is not
Thumb-ready. Therefore, these functions must be disabled on such
platforms. All Thumb1 platforms support ARM instructions, so this is
only relevant for Thumb2-only platforms (i.e., Cortex-M).

Note that some packages require the context functions, so these will
fail to build on these platforms. It is worth mentioning that musl
also doesn't provide the context functions, and those are rarely
used. Affected packages will be handled in later patches.

[Peter: slightly reworded]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2016-04-08 10:20:37 +02:00

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################################################################################
#
# uclibc
#
################################################################################
UCLIBC_VERSION = 1.0.13
UCLIBC_SOURCE = uClibc-ng-$(UCLIBC_VERSION).tar.xz
UCLIBC_SITE = http://downloads.uclibc-ng.org/releases/$(UCLIBC_VERSION)
UCLIBC_LICENSE = LGPLv2.1+
UCLIBC_LICENSE_FILES = COPYING.LIB
UCLIBC_INSTALL_STAGING = YES
# uclibc is part of the toolchain so disable the toolchain dependency
UCLIBC_ADD_TOOLCHAIN_DEPENDENCY = NO
# Before uClibc is configured, we must have the first stage
# cross-compiler and the kernel headers
UCLIBC_DEPENDENCIES = host-gcc-initial linux-headers
# specifying UCLIBC_CONFIG_FILE on the command-line overrides the .config
# setting.
ifndef UCLIBC_CONFIG_FILE
UCLIBC_CONFIG_FILE = $(call qstrip,$(BR2_UCLIBC_CONFIG))
endif
UCLIBC_KCONFIG_FILE = $(UCLIBC_CONFIG_FILE)
UCLIBC_KCONFIG_FRAGMENT_FILES = $(call qstrip,$(BR2_UCLIBC_CONFIG_FRAGMENT_FILES))
UCLIBC_KCONFIG_OPTS = \
$(UCLIBC_MAKE_FLAGS) \
PREFIX=$(STAGING_DIR) \
DEVEL_PREFIX=/usr/ \
RUNTIME_PREFIX=$(STAGING_DIR)/ \
UCLIBC_TARGET_ARCH = $(call qstrip,$(BR2_UCLIBC_TARGET_ARCH))
UCLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
ifeq ($(UCLIBC_GENERATE_LOCALES),)
# We need at least one locale
UCLIBC_LOCALES = en_US
else
# Strip out the encoding part of locale names, if any
UCLIBC_LOCALES = \
$(foreach locale,$(UCLIBC_GENERATE_LOCALES),\
$(firstword $(subst .,$(space),$(locale))))
endif
#
# ARC definitions
#
ifeq ($(UCLIBC_TARGET_ARCH),arc)
UCLIBC_ARC_TYPE = CONFIG_$(call qstrip,$(BR2_UCLIBC_ARC_TYPE))
define UCLIBC_ARC_TYPE_CONFIG
$(call KCONFIG_ENABLE_OPT,$(UCLIBC_ARC_TYPE),$(@D)/.config)
endef
UCLIBC_ARC_PAGE_SIZE = CONFIG_ARC_PAGE_SIZE_$(call qstrip,$(BR2_ARC_PAGE_SIZE))
define UCLIBC_ARC_PAGE_SIZE_CONFIG
$(SED) '/CONFIG_ARC_PAGE_SIZE_*/d' $(@D)/.config
$(call KCONFIG_ENABLE_OPT,$(UCLIBC_ARC_PAGE_SIZE),$(@D)/.config)
endef
endif # arc
#
# ARM definitions
#
ifeq ($(UCLIBC_TARGET_ARCH),arm)
define UCLIBC_ARM_ABI_CONFIG
$(SED) '/CONFIG_ARM_.ABI/d' $(@D)/.config
$(call KCONFIG_ENABLE_OPT,CONFIG_ARM_EABI,$(@D)/.config)
endef
# Thumb1 build is broken with threads with old gcc versions (4.7 and
# 4.8). Since all cores supporting Thumb1 also support ARM, we use ARM
# code in this case.
ifeq ($(BR2_GCC_VERSION_4_7_X)$(BR2_GCC_VERSION_4_8_X):$(BR2_ARM_INSTRUCTIONS_THUMB)$(BR2_TOOLCHAIN_HAS_THREADS),y:yy)
UCLIBC_EXTRA_CFLAGS += -marm
endif
ifeq ($(BR2_BINFMT_FLAT),y)
define UCLIBC_ARM_BINFMT_FLAT
$(call KCONFIG_DISABLE_OPT,DOPIC,$(@D)/.config)
endef
endif
# context functions are written with ARM instructions. Therefore, if
# we are using a Thumb2-only platform (i.e, Cortex-M), they must be
# disabled. Thumb1 platforms are not a problem, since they all also
# support the ARM instructions.
ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB2):$(BR2_ARM_CPU_HAS_ARM),y:)
define UCLIBC_ARM_NO_CONTEXT_FUNCS
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_CONTEXT_FUNCS,$(@D)/.config)
endef
endif
endif # arm
#
# MIPS definitions
#
ifeq ($(UCLIBC_TARGET_ARCH),mips)
UCLIBC_MIPS_ABI = CONFIG_MIPS_$(call qstrip,$(BR2_UCLIBC_MIPS_ABI))_ABI
define UCLIBC_MIPS_ABI_CONFIG
$(SED) '/CONFIG_MIPS_[NO].._ABI/d' $(@D)/.config
$(call KCONFIG_ENABLE_OPT,$(UCLIBC_MIPS_ABI),$(@D)/.config)
endef
UCLIBC_MIPS_ISA = CONFIG_MIPS_ISA_$(call qstrip,$(BR2_UCLIBC_MIPS_ISA))
define UCLIBC_MIPS_ISA_CONFIG
$(SED) '/CONFIG_MIPS_ISA_.*/d' $(@D)/.config
$(call KCONFIG_ENABLE_OPT,$(UCLIBC_MIPS_ISA),$(@D)/.config)
endef
endif # mips
#
# SH definitions
#
ifeq ($(UCLIBC_TARGET_ARCH),sh)
UCLIBC_SH_TYPE = CONFIG_$(call qstrip,$(BR2_UCLIBC_SH_TYPE))
define UCLIBC_SH_TYPE_CONFIG
$(SED) '/CONFIG_SH[234A]*/d' $(@D)/.config
$(call KCONFIG_ENABLE_OPT,$(UCLIBC_SH_TYPE),$(@D)/.config)
endef
endif # sh
#
# SPARC definitions
#
ifeq ($(UCLIBC_TARGET_ARCH),sparc)
UCLIBC_SPARC_TYPE = CONFIG_SPARC_$(call qstrip,$(BR2_UCLIBC_SPARC_TYPE))
define UCLIBC_SPARC_TYPE_CONFIG
$(SED) 's/^\(CONFIG_[^_]*[_]*SPARC[^=]*\)=.*/# \1 is not set/g' \
$(@D)/.config
$(call KCONFIG_ENABLE_OPT,$(UCLIBC_SPARC_TYPE),$(@D)/.config)
endef
endif # sparc
#
# PowerPC definitions
#
ifeq ($(UCLIBC_TARGET_ARCH),powerpc)
UCLIBC_POWERPC_TYPE = CONFIG_$(call qstrip,$(BR2_UCLIBC_POWERPC_TYPE))
define UCLIBC_POWERPC_TYPE_CONFIG
$(call KCONFIG_DISABLE_OPT,CONFIG_GENERIC,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,CONFIG_E500,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,$(UCLIBC_POWERPC_TYPE),$(@D)/.config)
endef
endif # powerpc
#
# x86 definitions
#
ifeq ($(UCLIBC_TARGET_ARCH),i386)
UCLIBC_X86_TYPE = CONFIG_$(call qstrip,$(BR2_UCLIBC_X86_TYPE))
define UCLIBC_X86_TYPE_CONFIG
$(call KCONFIG_ENABLE_OPT,$(UCLIBC_X86_TYPE),$(@D)/.config)
endef
endif
#
# Endianness
#
ifeq ($(call qstrip,$(BR2_ENDIAN)),BIG)
define UCLIBC_ENDIAN_CONFIG
$(call KCONFIG_ENABLE_OPT,ARCH_BIG_ENDIAN,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,ARCH_WANTS_BIG_ENDIAN,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,ARCH_LITTLE_ENDIAN,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,ARCH_WANTS_LITTLE_ENDIAN,$(@D)/.config)
endef
else
define UCLIBC_ENDIAN_CONFIG
$(call KCONFIG_ENABLE_OPT,ARCH_LITTLE_ENDIAN,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,ARCH_WANTS_LITTLE_ENDIAN,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,ARCH_BIG_ENDIAN,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,ARCH_WANTS_BIG_ENDIAN,$(@D)/.config)
endef
endif
#
# Largefile
#
define UCLIBC_LARGEFILE_CONFIG
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_LFS,$(@D)/.config)
endef
#
# MMU
#
ifeq ($(BR2_USE_MMU),y)
define UCLIBC_MMU_CONFIG
$(call KCONFIG_ENABLE_OPT,ARCH_USE_MMU,$(@D)/.config)
endef
else
define UCLIBC_MMU_CONFIG
$(call KCONFIG_DISABLE_OPT,ARCH_USE_MMU,$(@D)/.config)
endef
endif
#
# IPv6
#
UCLIBC_IPV6_CONFIG = $(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_IPV6,$(@D)/.config)
#
# RPC
#
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_INET_RPC),y)
define UCLIBC_RPC_CONFIG
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_RPC,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FULL_RPC,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_REENTRANT_RPC,$(@D)/.config)
endef
else
define UCLIBC_RPC_CONFIG
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_RPC,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_FULL_RPC,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_REENTRANT_RPC,$(@D)/.config)
endef
endif
#
# soft-float
#
ifeq ($(BR2_SOFT_FLOAT),y)
define UCLIBC_FLOAT_CONFIG
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_FPU,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FLOATS,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,DO_C99_MATH,$(@D)/.config)
endef
else
define UCLIBC_FLOAT_CONFIG
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FPU,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FLOATS,$(@D)/.config)
endef
endif
#
# SSP
#
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_USE_SSP),y)
define UCLIBC_SSP_CONFIG
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_SSP,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,UCLIBC_BUILD_SSP,$(@D)/.config)
endef
else
define UCLIBC_SSP_CONFIG
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_SSP,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,UCLIBC_BUILD_SSP,$(@D)/.config)
endef
endif
#
# Threads
#
ifeq ($(BR2_PTHREADS_NONE),y)
define UCLIBC_THREAD_CONFIG
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,LINUXTHREADS,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_OLD,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS_NATIVE,$(@D)/.config)
endef
else ifeq ($(BR2_PTHREADS),y)
define UCLIBC_THREAD_CONFIG
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,LINUXTHREADS_NEW,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_OLD,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS_NATIVE,$(@D)/.config)
endef
else ifeq ($(BR2_PTHREADS_OLD),y)
define UCLIBC_THREAD_CONFIG
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_NEW,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,LINUXTHREADS_OLD,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS_NATIVE,$(@D)/.config)
endef
else ifeq ($(BR2_PTHREADS_NATIVE),y)
define UCLIBC_THREAD_CONFIG
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_NEW,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_OLD,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS_NATIVE,$(@D)/.config)
endef
endif
#
# Thread debug
#
ifeq ($(BR2_PTHREAD_DEBUG),y)
UCLIBC_THREAD_DEBUG_CONFIG = $(call KCONFIG_ENABLE_OPT,PTHREADS_DEBUG_SUPPORT,$(@D)/.config)
else
UCLIBC_THREAD_DEBUG_CONFIG = $(call KCONFIG_DISABLE_OPT,PTHREADS_DEBUG_SUPPORT,$(@D)/.config)
endif
#
# Locale
#
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_LOCALE),y)
define UCLIBC_LOCALE_CONFIG
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_LOCALE,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,UCLIBC_BUILD_ALL_LOCALE,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,UCLIBC_BUILD_MINIMAL_LOCALE,$(@D)/.config)
$(call KCONFIG_SET_OPT,UCLIBC_BUILD_MINIMAL_LOCALES,"$(UCLIBC_LOCALES)",$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,UCLIBC_PREGENERATED_LOCALE_DATA,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,DOWNLOAD_PREGENERATED_LOCALE_DATA,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_XLOCALE,$(@D)/.config)
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_GLIBC_DIGIT_GROUPING,$(@D)/.config)
endef
else
define UCLIBC_LOCALE_CONFIG
$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_LOCALE,$(@D)/.config)
endef
endif
#
# wchar
#
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_WCHAR),y)
UCLIBC_WCHAR_CONFIG = $(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_WCHAR,$(@D)/.config)
else
UCLIBC_WCHAR_CONFIG = $(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_WCHAR,$(@D)/.config)
endif
#
# static/shared libs
#
ifeq ($(BR2_STATIC_LIBS),y)
UCLIBC_SHARED_LIBS_CONFIG = $(call KCONFIG_DISABLE_OPT,HAVE_SHARED,$(@D)/.config)
else
UCLIBC_SHARED_LIBS_CONFIG = $(call KCONFIG_ENABLE_OPT,HAVE_SHARED,$(@D)/.config)
endif
#
# Commands
#
UCLIBC_MAKE_FLAGS = \
ARCH="$(UCLIBC_TARGET_ARCH)" \
CROSS_COMPILE="$(TARGET_CROSS)" \
UCLIBC_EXTRA_CFLAGS="$(UCLIBC_EXTRA_CFLAGS) $(TARGET_ABI)" \
HOSTCC="$(HOSTCC)"
define UCLIBC_KCONFIG_FIXUP_CMDS
$(call KCONFIG_SET_OPT,CROSS_COMPILER_PREFIX,"$(TARGET_CROSS)",$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,TARGET_$(UCLIBC_TARGET_ARCH),$(@D)/.config)
$(call KCONFIG_SET_OPT,TARGET_ARCH,"$(UCLIBC_TARGET_ARCH)",$(@D)/.config)
$(call KCONFIG_SET_OPT,KERNEL_HEADERS,"$(LINUX_HEADERS_DIR)/usr/include",$(@D)/.config)
$(call KCONFIG_SET_OPT,RUNTIME_PREFIX,"/",$(@D)/.config)
$(call KCONFIG_SET_OPT,DEVEL_PREFIX,"/usr",$(@D)/.config)
$(call KCONFIG_SET_OPT,SHARED_LIB_LOADER_PREFIX,"/lib",$(@D)/.config)
$(UCLIBC_MMU_CONFIG)
$(UCLIBC_ARC_TYPE_CONFIG)
$(UCLIBC_ARC_PAGE_SIZE_CONFIG)
$(UCLIBC_ARM_ABI_CONFIG)
$(UCLIBC_ARM_BINFMT_FLAT)
$(UCLIBC_ARM_NO_CONTEXT_FUNCS)
$(UCLIBC_MIPS_ABI_CONFIG)
$(UCLIBC_MIPS_ISA_CONFIG)
$(UCLIBC_SH_TYPE_CONFIG)
$(UCLIBC_SPARC_TYPE_CONFIG)
$(UCLIBC_POWERPC_TYPE_CONFIG)
$(UCLIBC_X86_TYPE_CONFIG)
$(UCLIBC_ENDIAN_CONFIG)
$(UCLIBC_LARGEFILE_CONFIG)
$(UCLIBC_IPV6_CONFIG)
$(UCLIBC_RPC_CONFIG)
$(UCLIBC_FLOAT_CONFIG)
$(UCLIBC_SSP_CONFIG)
$(UCLIBC_THREAD_CONFIG)
$(UCLIBC_THREAD_DEBUG_CONFIG)
$(UCLIBC_LOCALE_CONFIG)
$(UCLIBC_WCHAR_CONFIG)
$(UCLIBC_SHARED_LIBS_CONFIG)
endef
ifeq ($(BR2_UCLIBC_INSTALL_TEST_SUITE),y)
define UCLIBC_BUILD_TEST_SUITE
$(MAKE1) -C $(@D) \
$(UCLIBC_MAKE_FLAGS) \
TEST_INSTALLED_UCLIBC=1 \
UCLIBC_ONLY=1 \
test_compile
endef
endif
define UCLIBC_BUILD_CMDS
$(MAKE) -C $(@D) $(UCLIBC_MAKE_FLAGS) headers
$(MAKE) -C $(@D) $(UCLIBC_MAKE_FLAGS)
$(MAKE) -C $(@D)/utils \
PREFIX=$(HOST_DIR) \
HOSTCC="$(HOSTCC)" hostutils
endef
ifeq ($(BR2_UCLIBC_INSTALL_TEST_SUITE),y)
define UCLIBC_INSTALL_TEST_SUITE
mkdir -p $(TARGET_DIR)/root/uClibc
cp -rdpf $(@D)/test $(TARGET_DIR)/root/uClibc
$(INSTALL) -D -m 0644 $(@D)/Rules.mak $(TARGET_DIR)/root/uClibc/Rules.mak
$(INSTALL) -D -m 0644 $(@D)/.config $(TARGET_DIR)/root/uClibc/.config
endef
endif
ifeq ($(BR2_UCLIBC_INSTALL_UTILS),y)
define UCLIBC_INSTALL_UTILS_TARGET
$(MAKE1) -C $(@D) \
CC="$(TARGET_CC)" CPP="$(TARGET_CPP)" LD="$(TARGET_LD)" \
ARCH="$(UCLIBC_TARGET_ARCH)" \
PREFIX=$(TARGET_DIR) \
utils install_utils
endef
endif
define UCLIBC_INSTALL_TARGET_CMDS
$(MAKE1) -C $(@D) \
$(UCLIBC_MAKE_FLAGS) \
PREFIX=$(TARGET_DIR) \
DEVEL_PREFIX=/usr/ \
RUNTIME_PREFIX=/ \
install_runtime
$(UCLIBC_INSTALL_UTILS_TARGET)
$(UCLIBC_BUILD_TEST_SUITE)
$(UCLIBC_INSTALL_TEST_SUITE)
$(UCLIBC_INSTALL_LDSO_SYMLINKS)
endef
# STATIC has no ld* tools, only getconf
ifeq ($(BR2_STATIC_LIBS),)
define UCLIBC_INSTALL_UTILS_STAGING
$(INSTALL) -D -m 0755 $(@D)/utils/ldd.host $(HOST_DIR)/usr/bin/ldd
ln -sf ldd $(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-ldd
$(INSTALL) -D -m 0755 $(@D)/utils/ldconfig.host $(HOST_DIR)/usr/bin/ldconfig
ln -sf ldconfig $(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-ldconfig
endef
endif
define UCLIBC_INSTALL_STAGING_CMDS
$(MAKE1) -C $(@D) \
$(UCLIBC_MAKE_FLAGS) \
PREFIX=$(STAGING_DIR) \
DEVEL_PREFIX=/usr/ \
RUNTIME_PREFIX=/ \
install_runtime install_dev
$(UCLIBC_INSTALL_UTILS_STAGING)
endef
# Checks to give errors that the user can understand
# Must be before we call to kconfig-package
ifeq ($(BR2_PACKAGE_UCLIBC)$(BR_BUILDING),yy)
ifeq ($(call qstrip,$(BR2_UCLIBC_CONFIG)),)
$(error No uClibc configuration file specified, check your BR2_UCLIBC_CONFIG setting)
endif
endif
$(eval $(kconfig-package))
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