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Message-ID: <1464048292-30136-12-git-send-email-ynorov@caviumnetworks.com> Date: Tue, 24 May 2016 03:04:40 +0300 From: Yury Norov <ynorov@...iumnetworks.com> To: <arnd@...db.de>, <catalin.marinas@....com>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>, <linux-arch@...r.kernel.org>, <linux-s390@...r.kernel.org>, <libc-alpha@...rceware.org> CC: <schwidefsky@...ibm.com>, <heiko.carstens@...ibm.com>, <ynorov@...iumnetworks.com>, <pinskia@...il.com>, <broonie@...nel.org>, <joseph@...esourcery.com>, <christoph.muellner@...obroma-systems.com>, <bamvor.zhangjian@...wei.com>, <szabolcs.nagy@....com>, <klimov.linux@...il.com>, <Nathan_Lynch@...tor.com>, <agraf@...e.de>, <Prasun.Kapoor@...iumnetworks.com>, <kilobyte@...band.pl>, <geert@...ux-m68k.org>, <philipp.tomsich@...obroma-systems.com>, Andrew Pinski <apinski@...ium.com> Subject: [PATCH 11/23] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 From: Andrew Pinski <apinski@...ium.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. Signed-off-by: Andrew Pinski <apinski@...ium.com> Signed-off-by: Philipp Tomsich <philipp.tomsich@...obroma-systems.com> Signed-off-by: Christoph Muellner <christoph.muellner@...obroma-systems.com> Signed-off-by: Yury Norov <ynorov@...iumnetworks.com> Reviewed-by: David Daney <ddaney@...iumnetworks.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
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