From: ynorov@caviumnetworks.com (Yury Norov)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 03/18] arm64: ensure the kernel is compiled for LP64
Date: Wed, 17 Aug 2016 14:46:28 +0300 [thread overview]
Message-ID: <1471434403-25291-4-git-send-email-ynorov@caviumnetworks.com> (raw)
In-Reply-To: <1471434403-25291-1-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 5b54f8c..4800227 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -34,14 +34,19 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads)
KBUILD_AFLAGS += $(lseinstr)
+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
else
KBUILD_CPPFLAGS += -mlittle-endian
AS += -EL
LD += -EL
+LDFLAGS += -maarch64linux
endif
CHECKFLAGS += -D__aarch64__
--
2.7.4
next prev parent reply other threads:[~2016-08-17 11:46 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-17 11:46 [RFC2 nowrap: PATCH v7 00/18] ILP32 for ARM64 Yury Norov
2016-08-17 11:46 ` [PATCH 01/18] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option Yury Norov
2016-08-17 11:46 ` [PATCH 02/18] arm64: ilp32: add documentation on the ILP32 ABI for ARM64 Yury Norov
2016-08-17 11:46 ` Yury Norov [this message]
2016-08-17 11:46 ` [PATCH 04/18] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov
2016-08-17 11:46 ` [PATCH 05/18] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov
2016-08-17 11:46 ` [PATCH 06/18] thread: move thread bits accessors to separated file Yury Norov
2016-08-17 11:46 ` [PATCH 07/18] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov
2016-08-17 11:46 ` [PATCH 08/18] arm64: ilp32: add is_ilp32_compat_{task, thread} and TIF_32BIT_AARCH64 Yury Norov
2016-08-17 11:46 ` [PATCH 09/18] arm64: introduce binfmt_elf32.c Yury Norov
2016-08-17 11:46 ` [PATCH 10/18] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov
2016-08-17 11:46 ` [PATCH 11/18] arm64: ilp32: share aarch32 syscall handlers Yury Norov
2016-08-17 11:46 ` [PATCH 12/18] arm64: ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov
2016-09-02 10:46 ` Bamvor Jian Zhang
2016-09-02 12:55 ` Arnd Bergmann
2016-09-02 13:04 ` Yury Norov
2016-08-17 11:46 ` [PATCH 13/18] arm64: signal: share lp64 signal routines to ilp32 Yury Norov
2016-08-17 11:46 ` [PATCH 14/18] arm64: signal32: move ilp32 and aarch32 common code to separated file Yury Norov
2016-08-17 11:46 ` [PATCH 15/18] arm64: ilp32: introduce ilp32-specific handlers for sigframe and ucontext Yury Norov
2016-08-17 11:46 ` [PATCH 16/18] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Yury Norov
2016-08-17 11:46 ` [PATCH 17/18] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov
2016-08-17 13:18 ` Andreas Schwab
2016-08-17 11:46 ` [PATCH 18/18] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov
2016-08-17 12:28 ` [RFC2 nowrap: PATCH v7 00/18] ILP32 for ARM64 Alexander Graf
2016-08-17 12:48 ` Yury Norov
2016-08-17 12:54 ` Dr. Philipp Tomsich
2016-08-17 14:29 ` Catalin Marinas
2016-08-17 14:32 ` Dr. Philipp Tomsich
2016-08-17 15:26 ` Catalin Marinas
2016-08-18 9:45 ` Yury Norov
2016-09-02 10:20 ` Bamvor Jian Zhang
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