linux-kernel - Re: [PATCH] arm64: allowing mmap to be traced

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Message-ID: <20180514143852.tmbzqij2t35wjtdy@lakrids.cambridge.arm.com>
Date:   Mon, 14 May 2018 15:38:52 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     Christian Hansen <chansen3@...co.com>
Cc:     catalin.marinas@....com, linux@...inikbrodowski.net,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        xe-linux-external@...co.com
Subject: Re: [PATCH] arm64: allowing mmap to be traced

On Mon, May 14, 2018 at 02:32:42PM +0000, Christian Hansen wrote:
> Adding missing macro which is present all other system calls to
> to mmap declaration for ARM.  This allows it to appear as a kernel
> tracing target.
> 
> Signed-off-by: Christian Hansen <chansen3@...co.com>

FWIW, I sent out a patch doing this earlier today [1], which is
identical modulo some spacing.

Mark.

[1] https://lkml.kernel.org/r/20180514094640.27569-17-mark.rutland@arm.com

> ---
>  arch/arm64/kernel/sys.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/kernel/sys.c b/arch/arm64/kernel/sys.c
> index 72981ba..1ccdbfc 100644
> --- a/arch/arm64/kernel/sys.c
> +++ b/arch/arm64/kernel/sys.c
> @@ -27,9 +27,9 @@
>  #include <linux/syscalls.h>
>  #include <asm/cpufeature.h>
>  
> -asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
> -			 unsigned long prot, unsigned long flags,
> -			 unsigned long fd, off_t off)
> +SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
> +		unsigned long, prot, unsigned long, flags,
> +		unsigned long, fd, off_t, off)
>  {
>  	if (offset_in_page(off) != 0)
>  		return -EINVAL;
> -- 
> 2.5.0
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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