NetBSD Problem Report #60889

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Date: Fri, 16 Oct 2026 17:30:24 +0000 (UTC)
From: campbell+netbsd@mumble.net
Reply-To: campbell+netbsd@mumble.net
To: gnats-bugs@NetBSD.org
Subject: riscv64: compat_netbsd32 is busticated
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X-From4GNATS: "campbell+netbsd@mumble.net via gnats" <gnats-admin@NetBSD.org>

>Number:         60889
>Category:       port-riscv
>Synopsis:       riscv64: compat_netbsd32 is busticated
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-riscv-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 16 17:35:00 +0000 2026
>Last-Modified:  Fri Oct 16 17:50:03 +0000 2026
>Originator:     Taylor R Campbell
>Release:        current
>Organization:
RiscvBSD 32 LLC (Limited Compatibility Company)
>Environment:
>Description:
/home/riastradh/netbsd/current/src/sys/compat/netbsd32/netbsd32_exec_aout.c: In function 'exec_netbsd32_makecmds':
/home/riastradh/netbsd/current/src/sys/compat/netbsd32/netbsd32_exec_aout.c:119:15: error: 'NETBSD32_MID_MACHINE' undeclared (first use in this function)
  119 |         case (NETBSD32_MID_MACHINE << 16) | ZMAGIC:
      |               ^~~~~~~~~~~~~~~~~~~~

>How-To-Repeat:
options COMPAT_NETBSD32
options EXEC_ELF32
>Fix:

>Audit-Trail:
From: "Taylor R Campbell" <riastradh@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/60889 CVS commit: src/sys/conf
Date: Fri, 16 Oct 2026 17:48:56 +0000

 Module Name:	src
 Committed By:	riastradh
 Date:		Fri Oct 16 17:48:56 UTC 2026

 Modified Files:
 	src/sys/conf: files

 Log Message:
 sys/conf/files: riscv has no EXEC_AOUT either even for compat32.

 Do the same ifdef dance as for mips and arm.

 Fixes:

 > /home/riastradh/netbsd/current/src/sys/compat/netbsd32/netbsd32_exec_aout.c: In function 'exec_netbsd32_makecmds':
 > /home/riastradh/netbsd/current/src/sys/compat/netbsd32/netbsd32_exec_aout.c:119:15: error: 'NETBSD32_MID_MACHINE' undeclared (first use in this function)
 >   119 |         case (NETBSD32_MID_MACHINE << 16) | ZMAGIC:
 >       |               ^~~~~~~~~~~~~~~~~~~~

 PR port-riscv/60889: riscv64: compat_netbsd32 is busticated


 To generate a diff of this commit:
 cvs rdiff -u -r1.1324 -r1.1325 src/sys/conf/files

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

From: "Taylor R Campbell" <riastradh@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/60889 CVS commit: src/sys/arch/riscv
Date: Fri, 16 Oct 2026 17:49:12 +0000

 Module Name:	src
 Committed By:	riastradh
 Date:		Fri Oct 16 17:49:12 UTC 2026

 Modified Files:
 	src/sys/arch/riscv/include: netbsd32_machdep.h
 	src/sys/arch/riscv/riscv: netbsd32_machdep.c

 Log Message:
 riscv: Make comapt32 compile.

 Note: I doubt it will work -- cpu_getmcontext32 and cpu_setmcontext32
 appear to be missing save/restore of most registers, so signal
 delivery will probably trash them.  Also not sure whether to use
 l->l_private or tf->tf_reg[_REG_TP] here (or _X_TP).  TBD!

 PR port-riscv/60889: riscv64: compat_netbsd32 is busticated


 To generate a diff of this commit:
 cvs rdiff -u -r1.2 -r1.3 src/sys/arch/riscv/include/netbsd32_machdep.h
 cvs rdiff -u -r1.5 -r1.6 src/sys/arch/riscv/riscv/netbsd32_machdep.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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