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| Started by | Yury Norov <ynorov@caviumnetworks.com> |
|---|---|
| First post | 2015-09-30 00:20 +0200 |
| Last post | 2015-09-30 00:20 +0200 |
| Articles | 1 — 1 participant |
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[PATCH v5 06/23] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov <ynorov@caviumnetworks.com> - 2015-09-30 00:20 +0200
| From | Yury Norov <ynorov@caviumnetworks.com> |
|---|---|
| Date | 2015-09-30 00:20 +0200 |
| Subject | [PATCH v5 06/23] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 |
| Message-ID | <qebpD-2HP-1@gated-at.bofh.it> |
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. 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> 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> -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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