NetBSD Problem Report #60659

From www@netbsd.org  Fri Aug 28 13:52:55 2026
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Date: Fri, 28 Aug 2026 13:52:54 +0000 (UTC)
From: campbell+netbsd@mumble.net
Reply-To: campbell+netbsd@mumble.net
To: gnats-bugs@NetBSD.org
Subject: missing STACK_ALIGNMENT?
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X-From4GNATS: "campbell+netbsd@mumble.net via gnats" <gnats-admin@NetBSD.org>

>Number:         60659
>Category:       port-m68k
>Synopsis:       missing STACK_ALIGNMENT?
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    thorpej
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Aug 28 13:55:00 +0000 2026
>Closed-Date:    Fri Aug 28 15:08:56 +0000 2026
>Last-Modified:  Fri Aug 28 15:08:56 +0000 2026
>Originator:     Taylor R Campbell
>Release:        current
>Organization:
The m68kBSD Alignment, Inc.
>Environment:
>Description:

	m68k header files don't appear to define STACK_ALIGNMENT.
	Should they?

	The ABI says it requires longword (4-byte) alignment:

	https://people.debian.org/~glaubitz/m68k-sysv-abi.pdf#page=39

>How-To-Repeat:

	code inspection

>Fix:

	Maybe?

>Release-Note:

>Audit-Trail:
From: mlelstv@serpens.de (Michael van Elst)
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-m68k/60659: missing STACK_ALIGNMENT?
Date: Fri, 28 Aug 2026 14:41:47 -0000 (UTC)

 gnats-admin@NetBSD.org ("campbell+netbsd@mumble.net via gnats") writes:

 >	m68k header files don't appear to define STACK_ALIGNMENT.
 >	Should they?
 >	The ABI says it requires longword (4-byte) alignment:
 >	https://people.debian.org/~glaubitz/m68k-sysv-abi.pdf#page=39


 There is STACK_ALIGNBYTES (== max padding needed for alignment) which
 defaults to __ALIGNBYTES which defaults to (sizeof(int)-1).

Responsible-Changed-From-To: port-m68k-maintainer->thorpej
Responsible-Changed-By: thorpej@NetBSD.org
Responsible-Changed-When: Fri, 28 Aug 2026 14:58:04 +0000
Responsible-Changed-Why:
Take.


State-Changed-From-To: open->closed
State-Changed-By: thorpej@NetBSD.org
State-Changed-When: Fri, 28 Aug 2026 15:08:56 +0000
State-Changed-Why:
Not a bug; mlelstv is correct, the value does get defined and to the
correct value.


>Unformatted:

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