[src/trunk]: src/sys/arch/hppa/hppa @thorpej wrote that sigcontext was never ...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5a609efa36bd
branches:  trunk
changeset: 990460:5a609efa36bd
user:      christos <christos%NetBSD.org@localhost>
date:      Wed Oct 27 21:42:58 2021 +0000

description:
@thorpej wrote that sigcontext was never used on hppa; remove kernel handling
signal code. discussed also with @skrll

diffstat:

 sys/arch/hppa/hppa/locore.S  |    5 +-
 sys/arch/hppa/hppa/sigcode.S |  118 -------------------------------------------
 2 files changed, 1 insertions(+), 122 deletions(-)

diffs (139 lines):

diff -r a3474386b976 -r 5a609efa36bd sys/arch/hppa/hppa/locore.S
--- a/sys/arch/hppa/hppa/locore.S       Wed Oct 27 19:24:38 2021 +0000
+++ b/sys/arch/hppa/hppa/locore.S       Wed Oct 27 21:42:58 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.S,v 1.4 2020/01/08 20:59:18 skrll Exp $ */
+/*     $NetBSD: locore.S,v 1.5 2021/10/27 21:42:58 christos Exp $      */
 /*     $OpenBSD: locore.S,v 1.158 2008/07/28 19:08:46 miod Exp $       */
 
 /*
@@ -1000,7 +1000,4 @@
        ldw     L_MD(%t2), %t3
 EXIT(lwp_trampoline)
 
-/* Include the signal code. */
-#include <hppa/hppa/sigcode.S>
-
        .end
diff -r a3474386b976 -r 5a609efa36bd sys/arch/hppa/hppa/sigcode.S
--- a/sys/arch/hppa/hppa/sigcode.S      Wed Oct 27 19:24:38 2021 +0000
+++ /dev/null   Thu Jan 01 00:00:00 1970 +0000
@@ -1,118 +0,0 @@
-/*     $NetBSD: sigcode.S,v 1.8 2019/04/15 20:45:08 skrll Exp $        */
-
-/*     $OpenBSD: locore.S,v 1.46 2001/09/20 18:33:03 mickey Exp $      */
-
-/*
- * Copyright (c) 1998-2004 Michael Shalayeff
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Portitions of this file are derived from other sources, see
- * the copyrights and acknowledgements below.
- */
-/*
- * Copyright (c) 1990,1991,1992,1994 The University of Utah and
- * the Computer Systems Laboratory (CSL).  All rights reserved.
- *
- * THE UNIVERSITY OF UTAH AND CSL PROVIDE THIS SOFTWARE IN ITS "AS IS"
- * CONDITION, AND DISCLAIM ANY LIABILITY OF ANY KIND FOR ANY DAMAGES
- * WHATSOEVER RESULTING FROM ITS USE.
- *
- * CSL requests users of this software to return to csl-dist%cs.utah.edu@localhost any
- * improvements that they make and grant CSL redistribution rights.
- *
- *     Utah $Hdr: locore.s 1.62 94/12/15$
- */
-/*
- *  (c) Copyright 1988 HEWLETT-PACKARD COMPANY
- *
- *  To anyone who acknowledges that this file is provided "AS IS"
- *  without any express or implied warranty:
- *      permission to use, copy, modify, and distribute this file
- *  for any purpose is hereby granted without fee, provided that
- *  the above copyright notice and this notice appears in all
- *  copies, and that the name of Hewlett-Packard Company not be
- *  used in advertising or publicity pertaining to distribution
- *  of the software without specific, written prior permission.
- *  Hewlett-Packard Company makes no representations about the
- *  suitability of this software for any purpose.
- */
-
-/*
- * NOTICE: This is not a standalone file.  To use it, #include it in
- * your port's locore.S, like so:
- *
- *     #include <hppa/hppa/sigcode.S>
- */
-
-/*
- * Signal "trampoline" code. Invoked from RTE setup by sendsig().
- */
-ENTRY_NOPROFILE(sigcode,0)
-       .call
-       /*
-        * Our sendsig() places the address of the signal handler
-        * in %arg3.  It may actually be a PLABEL.
-        */
-       bb,>=,n %arg3, 30, L$sigcode_bounce     ; branch if not a PLABEL
-       depi    0, 31, 2, %arg3                 ; zero L bit in PLABEL pointer
-       ldw     4(%arg3), %r19                  ; load shared library linkage
-       ldw     0(%arg3), %arg3                 ; load real catcher address
-L$sigcode_bounce:
-       /*
-        * This blr puts the address of the following nop in rp.
-        * It also schedules the nop for execution, which is why
-        * that instruction has to be a nop, or, rather, not any
-        * instruction only meant to execute once the signal handler
-        * returns.
-        */
-       blr     %r0, %rp
-       /*
-        * This bv schedules the instruction pointed to by arg3
-        * for execution.  So, arg3 is the address of the signal
-        * handler.
-        */
-       bv,n    %r0(%arg3)
-       nop
-       /*
-        * The signal handler has returned.  Since %r3 is on the list
-        * of callee-saved registers, it's whatever the sendsig
-        * code wanted it set to.  Since we copy it into arg0,
-        * it looks like sendsig leaves %r3 holding the desired
-        * single argument to sys___sigreturn14, i.e., the
-        * struct sigcontext *.
-        */
-       /* Make a SYS___sigreturn14 system call. */
-       copy    %r3, %arg0
-       ldil    L%SYSCALLGATE, %r1
-       .call
-       ble     4(%sr7, %r1)
-       ldi     SYS_compat_16___sigreturn14, %t1
-       /* Make a SYS_exit system call. */
-       copy    %ret0, %arg0
-       ldil    L%SYSCALLGATE, %r1
-       .call
-       ble     4(%sr7, %r1)
-       ldi     SYS_exit, %t1
-ALTENTRY(esigcode)
-EXIT(sigcode)