3fe1ee40b2
The LLVM Target parser currently does not allow to specify the security extension as part of -march (see also LLVM Bug 40186 [0]). When trying to use Clang with LLVM's integrated assembler, this leads to build errors such as this: clang-8: error: the clang compiler does not support '-Wa,-march=armv7-a+sec' Use ".arch_extension sec" to enable the security extension in a more portable fasion. Also make sure to use ".arch armv7-a" in case a v6/v7 multi-platform kernel is being built. Note that this is technically not exactly the same as the old code checked for availabilty of the security extension by calling as-instr. However, there are already other sites which use ".arch_extension sec" unconditionally, hence de-facto we need an assembler capable of ".arch_extension sec" already today (arch/arm/mm/proc-v7.S). The arch extension "sec" is available since binutils 2.21 according to its documentation [1]. [0] https://bugs.llvm.org/show_bug.cgi?id=40186 [1] https://sourceware.org/binutils/docs-2.21/as/ARM-Options.html Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Mans Rullgard <mans@mansr.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Olof Johansson <olof@lixom.net>
69 lines
1.7 KiB
Makefile
69 lines
1.7 KiB
Makefile
#
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# Copyright (C) 2012-2015 Broadcom Corporation
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation version 2.
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#
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# This program is distributed "as is" WITHOUT ANY WARRANTY of any
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# kind, whether express or implied; without even the implied warranty
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# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# Cygnus
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obj-$(CONFIG_ARCH_BCM_CYGNUS) += bcm_cygnus.o
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# Hurricane 2
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obj-$(CONFIG_ARCH_BCM_HR2) += bcm_hr2.o
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# Northstar Plus
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obj-$(CONFIG_ARCH_BCM_NSP) += bcm_nsp.o
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ifeq ($(CONFIG_ARCH_BCM_NSP),y)
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obj-$(CONFIG_SMP) += platsmp.o
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endif
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# BCM281XX
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obj-$(CONFIG_ARCH_BCM_281XX) += board_bcm281xx.o
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# BCM21664
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obj-$(CONFIG_ARCH_BCM_21664) += board_bcm21664.o
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# BCM23550
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obj-$(CONFIG_ARCH_BCM_23550) += board_bcm23550.o
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# BCM281XX, BCM21664 and BCM23550 SMP support
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obj-$(CONFIG_ARCH_BCM_MOBILE_SMP) += platsmp.o
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# BCM281XX and BCM21664 L2 cache control
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obj-$(CONFIG_ARCH_BCM_MOBILE_L2_CACHE) += kona_l2_cache.o
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# Support for secure monitor traps
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obj-$(CONFIG_ARCH_BCM_MOBILE_SMC) += bcm_kona_smc.o
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# BCM2835
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obj-$(CONFIG_ARCH_BCM2835) += board_bcm2835.o
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ifeq ($(CONFIG_ARCH_BCM2835),y)
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ifeq ($(CONFIG_ARM),y)
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obj-$(CONFIG_SMP) += platsmp.o
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endif
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endif
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# BCM5301X
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obj-$(CONFIG_ARCH_BCM_5301X) += bcm_5301x.o
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ifeq ($(CONFIG_ARCH_BCM_5301X),y)
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obj-$(CONFIG_SMP) += platsmp.o
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endif
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# BCM63XXx
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ifeq ($(CONFIG_ARCH_BCM_63XX),y)
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obj-y += bcm63xx.o
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obj-$(CONFIG_SMP) += bcm63xx_smp.o bcm63xx_pmb.o
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endif
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ifeq ($(CONFIG_ARCH_BRCMSTB),y)
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CFLAGS_platsmp-brcmstb.o += -march=armv7-a
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obj-y += brcmstb.o
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obj-$(CONFIG_SMP) += platsmp-brcmstb.o
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endif
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