From: ynorov@caviumnetworks.com (Yury Norov)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 06/20] arm64: ensure the kernel is compiled for LP64
Date: Thu, 2 Mar 2017 00:49:14 +0530 [thread overview]
Message-ID: <1488395968-14313-7-git-send-email-ynorov@caviumnetworks.com> (raw)
In-Reply-To: <1488395968-14313-1-git-send-email-ynorov@caviumnetworks.com>
From: Andrew Pinski <apinski@cavium.com>
The kernel needs to be compiled as a LP64 binary for ARM64, even when
using a compiler that defaults to code-generation for the ILP32 ABI.
Consequently, we need to explicitly pass '-mabi=lp64' (supported on
gcc-4.9 and newer).
Signed-off-by: Andrew Pinski <Andrew.Pinski@caviumnetworks.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Reviewed-by: David Daney <ddaney@caviumnetworks.com>
---
arch/arm64/Makefile | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index b9a4a93..c89734d 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -48,15 +48,20 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads)
KBUILD_AFLAGS += $(lseinstr) $(brokengasinst)
+KBUILD_CFLAGS += $(call cc-option,-mabi=lp64)
+KBUILD_AFLAGS += $(call cc-option,-mabi=lp64)
+
ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
KBUILD_CPPFLAGS += -mbig-endian
AS += -EB
LD += -EB
+LDFLAGS += -maarch64linuxb
UTS_MACHINE := aarch64_be
else
KBUILD_CPPFLAGS += -mlittle-endian
AS += -EL
LD += -EL
+LDFLAGS += -maarch64linux
UTS_MACHINE := aarch64
endif
--
2.7.4
next prev parent reply other threads:[~2017-03-01 19:19 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-01 19:19 [PATCH v7 resend 00/20] ILP32 for ARM64 Yury Norov
2017-03-01 19:19 ` [PATCH 01/20] compat ABI: use non-compat openat and open_by_handle_at variants Yury Norov
2017-03-01 19:19 ` [PATCH 02/20] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option Yury Norov
2017-03-01 19:19 ` [PATCH 04/20] arm64: ilp32: add documentation on the ILP32 ABI for ARM64 Yury Norov
2017-03-01 19:19 ` [PATCH 05/20] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov
2017-03-01 19:19 ` Yury Norov [this message]
2017-03-01 19:19 ` [PATCH 07/20] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov
2017-03-01 19:19 ` [PATCH 08/20] thread: move thread bits accessors to separated file Yury Norov
2017-03-01 19:19 ` [PATCH 09/20] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov
2017-03-01 19:19 ` [PATCH 10/20] arm64: ilp32: add is_ilp32_compat_{task, thread} and TIF_32BIT_AARCH64 Yury Norov
2017-03-01 19:19 ` [PATCH 11/20] arm64: introduce binfmt_elf32.c Yury Norov
2017-03-01 19:19 ` [PATCH 12/20] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov
2017-03-01 19:19 ` [PATCH 13/20] arm64: ilp32: share aarch32 syscall handlers Yury Norov
2017-03-01 19:19 ` [PATCH 14/20] arm64: ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov
2017-03-01 19:19 ` [PATCH 15/20] arm64: signal: share lp64 signal routines to ilp32 Yury Norov
2017-03-01 19:19 ` [PATCH 16/20] arm64: signal32: move ilp32 and aarch32 common code to separated file Yury Norov
2017-03-01 19:19 ` [PATCH 17/20] arm64: ilp32: introduce ilp32-specific handlers for sigframe and ucontext Yury Norov
2017-03-01 19:19 ` [PATCH 18/20] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Yury Norov
2017-03-01 19:19 ` [PATCH 19/20] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov
2017-03-01 19:19 ` [PATCH 20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov
2017-04-10 19:47 ` [PATCH v7 resend 00/20] ILP32 for ARM64 Yury Norov
2017-04-11 11:33 ` Catalin Marinas
2017-04-11 11:54 ` Andreas Schwab
2017-04-11 13:33 ` Yury Norov
2017-04-11 18:36 ` Yury Norov
2017-04-11 18:42 ` Florian Weimer
2017-04-11 20:52 ` Yury Norov
-- strict thread matches above, loose matches on Subject: below --
2017-06-19 15:49 [PATCH v8 " Yury Norov
2017-06-19 15:49 ` [PATCH 06/20] arm64: ensure the kernel is compiled for LP64 Yury Norov
2017-06-04 11:59 No subject Yury Norov
2017-06-04 11:59 ` [PATCH 06/20] arm64: ensure the kernel is compiled for LP64 Yury Norov
2017-01-09 11:29 [PATCH v7 00/20] ILP32 for ARM64 Yury Norov
2017-01-09 11:29 ` [PATCH 06/20] arm64: ensure the kernel is compiled for LP64 Yury Norov
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