491f3fc048
Introduce configuration options to build an "hardened" OpenWRT. Options to enable Stack-Smashing Protection, FORTIFY_SOURCE and RELRO have been introduced. uClibc makefile now automatically detects if SSP support is necessary. hostapd makefile has been fixed to use "^" as sed separator since using a comma was problematic when using "-Wl,-z,now" and the like in TARGET_CFLAGS. Currently enabling SSP on user space depends on enabling SSP kernel side, this is due to the fact that TARGET_CFLAGS are used to build kernel modules (at least). Suggestions on how to avoid this are welcome. Using "select" instead of "depends on" doesn't seem to work with choice entries. Tested with a lantiq (WBMR) router, GCC 4.8, uClibc and a subset of the available packages. Needs to be tested with GCC 4.9 and the remaining packages. PIE not currently included. Signed-off-by: Alessandro Di Federico <ale+owrt@clearmind.me> SVN-Revision: 44005
99 lines
3.6 KiB
Makefile
99 lines
3.6 KiB
Makefile
#
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# Copyright (C) 2006-2012 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/target.mk
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PKG_NAME:=uClibc
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PKG_VERSION:=$(call qstrip,$(CONFIG_UCLIBC_VERSION))
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PKG_SOURCE_URL:=http://www.uclibc.org/downloads
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PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
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LIBC_SO_VERSION:=$(PKG_VERSION)
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PATCH_DIR:=$(PATH_PREFIX)/patches-$(PKG_VERSION)
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CONFIG_DIR:=$(PATH_PREFIX)/config-$(PKG_VERSION)
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PKG_MD5SUM_0.9.33.2 = a338aaffc56f0f5040e6d9fa8a12eda1
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PKG_MD5SUM=$(PKG_MD5SUM_$(PKG_VERSION))
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HOST_BUILD_DIR:=$(BUILD_DIR_TOOLCHAIN)/$(PKG_NAME)-$(PKG_VERSION)
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include $(INCLUDE_DIR)/toolchain-build.mk
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UCLIBC_TARGET_ARCH:=$(shell echo $(ARCH) | sed -e s'/-.*//' \
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-e 's/i.86/i386/' \
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-e 's/sparc.*/sparc/' \
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-e 's/arm.*/arm/g' \
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-e 's/avr32.*/avr32/g' \
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-e 's/m68k.*/m68k/' \
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-e 's/ppc/powerpc/g' \
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-e 's/v850.*/v850/g' \
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-e 's/sh64/sh/' \
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-e 's/sh[234].*/sh/' \
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-e 's/mips.*/mips/' \
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-e 's/mipsel.*/mips/' \
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-e 's/cris.*/cris/' \
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)
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GEN_CONFIG=$(SCRIPT_DIR)/kconfig.pl -n \
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$(if $(wildcard $(CONFIG_DIR)/common),'+' $(CONFIG_DIR)/common) \
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$(if $(CONFIG_UCLIBC_ENABLE_DEBUG),$(if $(wildcard $(CONFIG_DIR)/debug),'+' $(CONFIG_DIR)/debug)) \
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$(CONFIG_DIR)/$(ARCH)$(strip \
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$(if $(wildcard $(CONFIG_DIR)/$(ARCH).$(BOARD)),.$(BOARD), \
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$(if $(CONFIG_MIPS64_ABI),.$(subst ",,$(CONFIG_MIPS64_ABI)), \
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$(if $(CONFIG_HAS_SPE_FPU),$(if $(wildcard $(CONFIG_DIR)/$(ARCH).e500),.e500)))))
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CPU_CFLAGS = \
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-funsigned-char -fno-builtin -fno-asm \
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--std=gnu99 -ffunction-sections -fdata-sections \
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-Wno-unused-but-set-variable \
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$(TARGET_CFLAGS) -ggdb
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UCLIBC_MAKE = PATH='$(TOOLCHAIN_DIR)/initial/bin:$(TARGET_PATH)' $(MAKE) $(HOST_JOBS) -C $(HOST_BUILD_DIR) \
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$(TARGET_CONFIGURE_OPTS) \
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DEVEL_PREFIX=/ \
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RUNTIME_PREFIX=/ \
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HOSTCC="$(HOSTCC)" \
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CPU_CFLAGS="$(CPU_CFLAGS)" \
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ARCH="$(CONFIG_ARCH)" \
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LIBGCC="$(subst libgcc.a,libgcc_initial.a,$(shell $(TARGET_CC) -print-libgcc-file-name))" \
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DOSTRIP=""
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define Host/Prepare
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$(call Host/Prepare/Default)
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$(if $(strip $(QUILT)), \
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cd $(HOST_BUILD_DIR); \
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if $(QUILT_CMD) next >/dev/null 2>&1; then \
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$(QUILT_CMD) push -a; \
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fi
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)
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ln -snf $(PKG_NAME)-$(PKG_VERSION) $(BUILD_DIR_TOOLCHAIN)/$(PKG_NAME)
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endef
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define Host/Configure
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$(GEN_CONFIG) > $(HOST_BUILD_DIR)/.config.new
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$(SED) 's,^KERNEL_HEADERS=.*,KERNEL_HEADERS=\"$(BUILD_DIR_TOOLCHAIN)/linux-dev/include\",g' \
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-e 's,^.*UCLIBC_HAS_FPU.*,UCLIBC_HAS_FPU=$(if $(CONFIG_SOFT_FLOAT),n,y),g' \
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-e 's,^.*UCLIBC_HAS_SOFT_FLOAT.*,UCLIBC_HAS_SOFT_FLOAT=$(if $(CONFIG_SOFT_FLOAT),y,n),g' \
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-e 's,^.*UCLIBC_HAS_SHADOW.*,UCLIBC_HAS_SHADOW=$(if $(CONFIG_SHADOW_PASSWORDS),y,n),g' \
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-e 's,^.*UCLIBC_HAS_LOCALE.*,UCLIBC_HAS_LOCALE=$(if $(CONFIG_BUILD_NLS),y,n),g' \
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-e 's,^.*UCLIBC_BUILD_ALL_LOCALE.*,UCLIBC_BUILD_ALL_LOCALE=$(if $(CONFIG_BUILD_NLS),y,n),g' \
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-e 's,^.*UCLIBC_HAS_SSP.*,UCLIBC_HAS_SSP=$(if $(or $(CONFIG_PKG_CC_STACKPROTECTOR_REGULAR),$(CONFIG_PKG_CC_STACKPROTECTOR_STRONG)),y,n),g' \
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$(HOST_BUILD_DIR)/.config.new
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cmp -s $(HOST_BUILD_DIR)/.config.new $(HOST_BUILD_DIR)/.config.last || { \
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cp $(HOST_BUILD_DIR)/.config.new $(HOST_BUILD_DIR)/.config && \
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$(MAKE) -C $(HOST_BUILD_DIR) oldconfig KBUILD_HAVE_NLS= HOSTCFLAGS="-DKBUILD_NO_NLS" && \
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$(MAKE) -C $(HOST_BUILD_DIR)/extra/config conf KBUILD_HAVE_NLS= HOSTCFLAGS="-DKBUILD_NO_NLS" && \
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cp $(HOST_BUILD_DIR)/.config.new $(HOST_BUILD_DIR)/.config.last; \
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}
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endef
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define Host/Clean
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rm -rf \
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$(HOST_BUILD_DIR) \
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$(BUILD_DIR_TOOLCHAIN)/$(PKG_NAME) \
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$(BUILD_DIR_TOOLCHAIN)/$(LIBC)-dev
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endef
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