Commit 18580abb authored Aug 31, 2020 by Andrew Pinski Committed by Yang Yingliang Aug 31, 2020

arm64: uapi: set __BITS_PER_LONG correctly for ILP32 and LP64



hulk inclusion
category: feature
bugzilla: NA
CVE: NA
---------------------------

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@cavium.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>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: Hanjun Guo &lt;guohanjun@huawei.com <mailto:guohanjun@huawei.com&gt;>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>

parent 2a963a21

arch/arm64/include/uapi/asm/bitsperlong.h

+8 −1

Original line number	Diff line number	Diff line
		@@ -17,7 +17,14 @@
		#ifndef __ASM_BITSPERLONG_H
		#define __ASM_BITSPERLONG_H

		#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>