From: stefan@agner.ch (Stefan Agner)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/6] efi/libstub/arm: add support for building with clang
Date: Sun, 25 Mar 2018 20:09:55 +0200 [thread overview]
Message-ID: <20180325180959.28008-3-stefan@agner.ch> (raw)
In-Reply-To: <20180325180959.28008-1-stefan@agner.ch>
Use cc-options call for -mno-single-pic-base since the option is
not available in clang. LLVM/clang always assumes a fixed
displacement between text/data and hence uses PC relative
addressing.
Signed-off-by: Stefan Agner <stefan@agner.ch>
---
drivers/firmware/efi/libstub/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index 7b3ba40f0745..2bf69cca0d87 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -13,7 +13,8 @@ cflags-$(CONFIG_X86) += -m$(BITS) -D__KERNEL__ -O2 \
cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS)) -fpie
cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \
- -fno-builtin -fpic -mno-single-pic-base
+ -fno-builtin -fpic \
+ $(call cc-option,-mno-single-pic-base,)
cflags-$(CONFIG_EFI_ARMSTUB) += -I$(srctree)/scripts/dtc/libfdt
--
2.16.2
next prev parent reply other threads:[~2018-03-25 18:09 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-25 18:09 [PATCH v2 0/6] ARM: clang support Stefan Agner
2018-03-25 18:09 ` [PATCH v2 1/6] bus: arm-cci: use asm unreachable Stefan Agner
2018-03-25 18:14 ` Nicolas Pitre
2018-03-25 18:19 ` Stefan Agner
2018-04-16 15:59 ` Stefan Agner
2018-03-25 18:09 ` Stefan Agner [this message]
2018-03-25 18:09 ` [PATCH v2 3/6] ARM: trusted_foundations: do not use naked function Stefan Agner
2018-03-26 21:20 ` Dmitry Osipenko
2018-03-27 11:54 ` Robin Murphy
2018-03-27 12:16 ` Dmitry Osipenko
2018-04-16 15:56 ` Stefan Agner
2018-04-16 16:08 ` Stephen Warren
2018-04-16 18:21 ` Stefan Agner
2018-04-17 8:11 ` Thierry Reding
2018-06-26 8:11 ` Stefan Agner
2018-07-12 22:43 ` Kees Cook
2018-07-12 23:01 ` Russell King - ARM Linux
2018-07-13 8:07 ` Stefan Agner
2018-05-19 22:02 ` Dmitry Osipenko
2018-07-12 22:59 ` Russell King - ARM Linux
2018-03-25 18:09 ` [PATCH v2 4/6] ARM: drop no-thumb-interwork in EABI mode Stefan Agner
2018-06-12 17:19 ` [v2,4/6] " Guenter Roeck
2018-06-12 17:27 ` Stefan Agner
2018-03-25 18:09 ` [PATCH v2 5/6] ARM: add support for building ARM kernel with clang Stefan Agner
2018-03-25 18:09 ` [PATCH v2 6/6] ARM: uaccess: remove const to avoid duplicate specifier Stefan Agner
2018-05-07 20:24 ` [PATCH v2 0/6] ARM: clang support Stefan Agner
2018-05-07 21:09 ` Arnd Bergmann
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