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From: Yury Norov <ynorov@caviumnetworks.com>
To: <arnd@arndb.de>, <catalin.marinas@arm.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Cc: <ynorov@caviumnetworks.com>, <pinskia@gmail.com>,
	<Prasun.Kapoor@caviumnetworks.com>, <schwab@suse.de>,
	<Nathan_Lynch@mentor.com>, <agraf@suse.de>,
	<klimov.linux@gmail.com>, <broonie@kernel.org>,
	<jan.dakinevich@gmail.com>, <ddaney.cavm@gmail.com>,
	<bamvor.zhangjian@huawei.com>,
	<philipp.tomsich@theobroma-systems.com>,
	<joseph@codesourcery.com>,
	<christoph.muellner@theobroma-systems.com>,
	Andrew Pinski <apinski@cavium.com>
Subject: [PATCH v6 05/20] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64
Date: Wed, 16 Dec 2015 00:42:31 +0300	[thread overview]
Message-ID: <1450215766-14765-6-git-send-email-ynorov@caviumnetworks.com> (raw)
In-Reply-To: <1450215766-14765-1-git-send-email-ynorov@caviumnetworks.com>

From: Andrew Pinski <apinski@cavium.com>

Define __BITS_PER_LONG depending on the ABI used (i.e. check whether
__ILP32__ or __LP64__ is defined).  This is necessary for glibc to
determine the appropriate type definitions for the system call interface.

Reviewed-by: David Daney <ddaney@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>
Signed-off-by: Andrew Pinski <apinski@cavium.com>
---
 arch/arm64/include/uapi/asm/bitsperlong.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/uapi/asm/bitsperlong.h b/arch/arm64/include/uapi/asm/bitsperlong.h
index fce9c29..4265243 100644
--- a/arch/arm64/include/uapi/asm/bitsperlong.h
+++ b/arch/arm64/include/uapi/asm/bitsperlong.h
@@ -16,7 +16,14 @@
 #ifndef __ASM_BITSPERLONG_H
 #define __ASM_BITSPERLONG_H
 
-#define __BITS_PER_LONG 64
+#if defined(__LP64__)
+/* Assuming __LP64__ will be defined for native ELF64's and not for ILP32. */
+#  define __BITS_PER_LONG 64
+#elif defined(__ILP32__)
+#  define __BITS_PER_LONG 32
+#else
+#  error "Neither LP64 nor ILP32: unsupported ABI in asm/bitsperlong.h"
+#endif
 
 #include <asm-generic/bitsperlong.h>
 
-- 
2.5.0


  parent reply	other threads:[~2015-12-15 21:44 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-15 21:42 [RFC3 PATCH v6 00/20] ILP32 for ARM64 Yury Norov
2015-12-15 21:42 ` [PATCH v6 01/20] arm64: ilp32: add documentation on the ILP32 ABI " Yury Norov
2015-12-15 21:42 ` [PATCH v6 02/20] arm64: ensure the kernel is compiled for LP64 Yury Norov
2015-12-15 21:42 ` [PATCH v6 03/20] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov
2015-12-17 11:23   ` Catalin Marinas
2015-12-15 21:42 ` [PATCH v6 04/20] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Yury Norov
2015-12-23 14:15   ` Yury Norov
2015-12-28  8:43   ` > diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile Bamvor Jian Zhang
2015-12-28  9:01     ` [PATCH v6 04/20] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Zhangjian (Bamvor)
2015-12-29 12:27       ` Yury Norov
2015-12-29 14:59         ` [PATCH] arm64: compat: fix wrong dependency Bamvor Jian Zhang
2015-12-29 13:12       ` [PATCH v6 04/20] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Yury Norov
2015-12-15 21:42 ` Yury Norov [this message]
2015-12-15 21:42 ` [PATCH v6 06/20] thread: move thread bits accessors to separated file Yury Norov
2015-12-15 21:42 ` [PATCH v6 07/20] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov
2015-12-17 11:38   ` Catalin Marinas
2015-12-15 21:42 ` [PATCH v6 08/20] arm64: ilp32: add is_ilp32_compat_{task,thread} and TIF_32BIT_AARCH64 Yury Norov
2015-12-17 11:41   ` [PATCH v6 08/20] arm64: ilp32: add is_ilp32_compat_{task, thread} " Catalin Marinas
2015-12-18 14:11     ` Yury Norov
2015-12-18 14:44       ` Yury Norov
2015-12-21 17:42         ` Catalin Marinas
2015-12-15 21:42 ` [PATCH v6 09/20] arm64:ilp32: share HWCAP between LP64 and ILP32 Yury Norov
2015-12-16 15:54   ` Arnd Bergmann
2015-12-16 16:58     ` Catalin Marinas
2015-12-16 17:19       ` Catalin Marinas
2015-12-16 19:17         ` Arnd Bergmann
2015-12-17 10:54           ` Catalin Marinas
2015-12-17 13:56             ` Arnd Bergmann
2015-12-15 21:42 ` [PATCH v6 10/20] arm64:ilp32 use the native LP64 'start_thread' for ILP32 threads Yury Norov
2015-12-16 15:50   ` Arnd Bergmann
2015-12-18 13:57     ` Yury Norov
2015-12-15 21:42 ` [PATCH v6 11/20] arm64:ilp32: support core dump generation for ILP32 Yury Norov
2015-12-17 14:05   ` Catalin Marinas
2015-12-15 21:42 ` [PATCH v6 12/20] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov
2015-12-16 16:07   ` Arnd Bergmann
2015-12-17 18:27   ` Catalin Marinas
2015-12-17 20:10     ` Arnd Bergmann
2015-12-17 20:14       ` Andrew Pinski
2015-12-17 20:50         ` Arnd Bergmann
2016-01-05 15:26           ` Yury Norov
2016-01-05 21:12             ` Arnd Bergmann
2016-01-06 17:10               ` Catalin Marinas
2016-01-07 14:13                 ` Arnd Bergmann
2016-01-07 15:42                   ` Yury Norov
2016-01-07 17:23                   ` Catalin Marinas
2015-12-18 11:42         ` Catalin Marinas
2015-12-18 12:47           ` Arnd Bergmann
2015-12-21 18:31             ` Catalin Marinas
2015-12-21 22:19               ` Arnd Bergmann
2015-12-21 18:39             ` Dr. Philipp Tomsich
2015-12-21 22:13               ` Arnd Bergmann
2015-12-21 22:31   ` Arnd Bergmann
2015-12-23 18:31     ` Yury Norov
2015-12-23 21:48       ` Arnd Bergmann
2015-12-15 21:42 ` [PATCH v6 13/20] arm64: ilp32: share aarch32 syscall wrappers to ilp32 Yury Norov
2015-12-17 14:38   ` Andreas Schwab
2015-12-18 13:49     ` Yury Norov
2015-12-22 12:25   ` Catalin Marinas
2015-12-22 21:44     ` Arnd Bergmann
2015-12-23 13:37       ` Catalin Marinas
2015-12-23 20:41         ` Arnd Bergmann
2015-12-30 17:29           ` Yury Norov
2015-12-30 22:36             ` Arnd Bergmann
2015-12-23  4:21     ` Yury Norov
2015-12-15 21:42 ` [PATCH v6 14/20] arm64: signal: wrap struct ucontext, fp and lr with struct sigframe Yury Norov
2015-12-15 21:42 ` [PATCH v6 15/20] arm64: signal: move ilp32 and lp64 common code to separated file Yury Norov
2015-12-16 16:08   ` Arnd Bergmann
2015-12-18 13:48     ` Yury Norov
2015-12-18 14:09       ` Arnd Bergmann
2015-12-22 17:11   ` Catalin Marinas
2015-12-15 21:42 ` [PATCH v6 16/20] arm64: signal32: move ilp32 and aarch32 " Yury Norov
2015-12-22 14:29   ` Catalin Marinas
2015-12-15 21:42 ` [PATCH v6 17/20] arm64: ilp32: introduce ilp32-specific handlers for sigframe Yury Norov
2015-12-22 17:08   ` Catalin Marinas
2015-12-15 21:42 ` [PATCH v6 18/20] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov
2015-12-15 21:42 ` [PATCH v6 19/20] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32 Yury Norov
2015-12-15 21:42 ` [PATCH v6 20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov
2015-12-16 16:24 ` [RFC3 PATCH v6 00/20] ILP32 for ARM64 Arnd Bergmann

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