Re: port-amd64/54052: bump STACK_ALIGNBYTES for COMPAT_LINUX

[Joerg Sonnenberger <joerg%bec.de@localhost>]

The following reply was made to PR port-amd64/54052; it has been noted by GNATS.

From: Joerg Sonnenberger <joerg%bec.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: port-amd64-maintainer%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
	netbsd-bugs%netbsd.org@localhost
Subject: Re: port-amd64/54052: bump STACK_ALIGNBYTES for COMPAT_LINUX
Date: Mon, 11 Mar 2019 21:15:07 +0100

 On Mon, Mar 11, 2019 at 05:50:00AM +0000, rokuyama.rk%gmail.com@localhost wrote:
 > >Fix:
 > Index: sys/arch/amd64/include/param.h
 > ===================================================================
 > RCS file: /home/netbsd/src/sys/arch/amd64/include/param.h,v
 > retrieving revision 1.29
 > diff -p -u -r1.29 param.h
 > --- sys/arch/amd64/include/param.h	11 Feb 2019 14:59:32 -0000	1.29
 > +++ sys/arch/amd64/include/param.h	10 Mar 2019 13:12:11 -0000
 > @@ -23,6 +23,8 @@
 >  
 >  #define ALIGNED_POINTER(p,t)	1
 >  
 > +#define STACK_ALIGNBYTES	(16 - 1)	/* COMPAT_LINUX */
 > +
 >  #define ALIGNBYTES32		(sizeof(int) - 1)
 >  #define ALIGN32(p)		(((u_long)(p) + ALIGNBYTES32) &~ALIGNBYTES32)
 >  
 > 
 
 I'm puzzled by this patch. Stack alignment should already be 16 Bytes on
 AMD64.
 
 Joerg