linux-kernel - Re: [PATCH 11/27] [AARCH64] Syscalls for ILP32 are passed always via 64bit values.

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Date:	Tue, 21 Jun 2016 09:56:06 +0200
From:	Andreas Schwab <schwab@...e.de>
To:	Yury Norov <ynorov@...iumnetworks.com>
Cc:	<libc-alpha@...rceware.org>, <linux-kernel@...r.kernel.org>,
	<arnd@...db.de>, <catalin.marinas@....com>,
	<marcus.shawcroft@....com>, <philb@....org>, <davem@...emloft.net>,
	<szabolcs.nagy@....com>, <maxim.kuvyrkov@...aro.org>,
	<joseph@...esourcery.com>, <pinskia@...il.com>,
	Andrew Pinski <apinski@...ium.com>
Subject: Re: [PATCH 11/27] [AARCH64] Syscalls for ILP32 are passed always via 64bit values.

Yury Norov <ynorov@...iumnetworks.com> writes:

> diff --git a/sysdeps/unix/sysv/linux/aarch64/sysdep.h b/sysdeps/unix/sysv/linux/aarch64/sysdep.h
> index 1ffabc2..42f89c8 100644
> --- a/sysdeps/unix/sysv/linux/aarch64/sysdep.h
> +++ b/sysdeps/unix/sysv/linux/aarch64/sysdep.h
> @@ -161,11 +161,11 @@
>     call.  */
>  # undef INLINE_SYSCALL
>  # define INLINE_SYSCALL(name, nr, args...)				\
> -  ({ unsigned long _sys_result = INTERNAL_SYSCALL (name, , nr, args);	\
> +  ({ unsigned long long _sys_result = INTERNAL_SYSCALL (name, , nr, args);	\
>       if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_sys_result, ), 0))\
>         {								\
>  	 __set_errno (INTERNAL_SYSCALL_ERRNO (_sys_result, ));		\
> -	 _sys_result = (unsigned long) -1;				\
> +	 _sys_result = (unsigned long long) -1;				\
>         }								\
>       (long) _sys_result; })

The cast should be (long long).

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@...e.de
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