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Message-Id: <397d8e22b263375720e757f00f3056db8e978d50.1428953303.git.philipp.tomsich@theobroma-systems.com> Date: Mon, 13 Apr 2015 21:44:16 +0200 From: Philipp Tomsich <philipp.tomsich@...obroma-systems.com> To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Cc: Andrew Pinski <apinski@...ium.com>, Christoph Muellner <christoph.muellner@...obroma-systems.com>, Benedikt Huber <benedikt.huber@...obroma-systems.com>, Andreas Kraschitzer <andreas.kraschitzer@...obroma-systems.com>, Kumar Sankaran <ksankaran@....com>, Catalin Marinas <catalin.marinas@....com>, Philipp Tomsich <philipp.tomsich@...obroma-systems.com> Subject: [PATCH v4 06/24] 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: Philipp Tomsich <philipp.tomsich@...obroma-systems.com> Signed-off-by: Christoph Muellner <christoph.muellner@...obroma-systems.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> -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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