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Re: Simplify accept4, recvmmsg, sendmmsg code

From: Joseph Myers <joseph at codesourcery dot com>
To: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>
Cc: <libc-alpha at sourceware dot org>
Date: Tue, 9 May 2017 21:44:13 +0000
Subject: Re: Simplify accept4, recvmmsg, sendmmsg code
Authentication-results: sourceware.org; auth=none
References: <alpine.DEB.2.20.1705092045350.28688@digraph.polyomino.org.uk> <7563ff0b-8331-eb42-4193-6d61536b56dc@linaro.org>

On Tue, 9 May 2017, Adhemerval Zanella wrote:

> > -/* Support for sendmmsg functionality was added in 3.0.  The macros
> > -   defined correspond to those for accept4 and recvmmsg.  */
> > -#define __ASSUME_SENDMMSG_SYSCALL	1
> > +/* Support for sendmmsg functionality was added in 3.0.  */
> >  #define __ASSUME_SENDMMSG	1
> 
> Since you are there, wouldn't be better to add a comment that we
> kept __ASSUME_SENDMMSG because of resolv code instead of kernel
> support?

That's not what we do for __ASSUME_SENDFILE, __ASSUME_ATFCTS etc. (other 
macros for features present for ports using the Linux kernel but not 
necessarily for other ports).

-- 
Joseph S. Myers
joseph@codesourcery.com

References:
- Simplify accept4, recvmmsg, sendmmsg code
  - From: Joseph Myers
- Re: Simplify accept4, recvmmsg, sendmmsg code
  - From: Adhemerval Zanella

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