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Re: [PATCH] powerpc: Call direct system calls for socket operations

From: Rajalakshmi Srinivasaraghavan <raji at linux dot vnet dot ibm dot com>
To: Andreas Schwab <schwab at suse dot de>
Cc: libc-alpha at sourceware dot org, sjmunroe at us dot ibm dot com
Date: Wed, 01 Jul 2015 13:32:55 +0530
Subject: Re: [PATCH] powerpc: Call direct system calls for socket operations
Authentication-results: sourceware.org; auth=none
References: <1435724523-25285-1-git-send-email-raji at linux dot vnet dot ibm dot com> <mvmegkstl7b dot fsf at hawking dot suse dot de>



On 07/01/2015 12:32 PM, Andreas Schwab wrote:

Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> writes:

Explicit system calls for the socket operations were added in Linux kernel
in commit 86250b9d12ca for powerpc. This patch make use of those instead of
calling socketcall to save number of cycles on networking syscalls.

2015-07-01  Rajalakshmi Srinivasaraghavan  <raji@linux.vnet.ibm.com>

	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h: Define new macros.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/accept.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/bind.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/connect.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/getpeername.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/getsockname.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/getsockopt.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/listen.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/recv.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/recvfrom.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/recvmsg.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/send.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sendmsg.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sendto.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/setsockopt.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/shutdown.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/socket.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/socketpair.c: New file.


IMHO it would make sense to put these checks directly in
sysdeps/unix/sysv/linux/accept.c etc, since other architectures are
expected to follow.

Andreas.

If I move this new code to sysdeps/unix/sysv/linux/*.c , do you meanmacro __ASSUME_*_SYSCALL will be defined infuture in sysdeps/unix/sysv/linux/*/kernel-features.h by respective archdevelopers based on the kernel version added?


--
Thanks
Rajalakshmi S

Follow-Ups:
- Re: [PATCH] powerpc: Call direct system calls for socket operations
  - From: Andreas Schwab

References:
- [PATCH] powerpc: Call direct system calls for socket operations
  - From: Rajalakshmi Srinivasaraghavan
- Re: [PATCH] powerpc: Call direct system calls for socket operations
  - From: Andreas Schwab

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