e415d48872
Bumping libc files for unsupported architectures, to simplify merging. A bunch of small fixes: * in libutil update * the macro in endian.h * some undefined types due to clear separation from host. * Fix a warning for cdbr.c Some modification which were required for the new build system: * inclusion path for const.h in sconst, still hacky * Removed default malloc.c which conflicts on some occasions.
133 lines
4.1 KiB
ArmAsm
133 lines
4.1 KiB
ArmAsm
/* $NetBSD: setjmp.S,v 1.9 2011/04/30 19:39:38 martin Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Header: setjmp.s,v 1.2 92/06/25 03:18:43 torek Exp
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*/
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#define _LOCORE
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#include <machine/asm.h>
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#include <machine/frame.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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.asciz "@(#)setjmp.s 8.1 (Berkeley) 6/4/93"
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#else
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RCSID("$NetBSD: setjmp.S,v 1.9 2011/04/30 19:39:38 martin Exp $")
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#endif
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#endif /* LIBC_SCCS and not lint */
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/*
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* C library -- setjmp
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*
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* __longjmp14(a,v)
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* will generate a "return(v)" from
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* the last call to
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* setjmp(a)
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* by restoring registers from the stack,
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* and a struct sigcontext, see <signal.h>
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*/
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#include "SYS.h"
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.register %g2,#ignore
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.register %g3,#ignore
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.register %g6,#ignore
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ENTRY(__setjmp14)
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save %sp, -CC64FSZ, %sp
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/* save globals into locals */
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mov %g1, %l1
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mov %g2, %l2
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mov %g3, %l3
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mov %g4, %l4
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mov %g5, %l5
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mov %g6, %l6
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mov %g7, %l7
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#ifdef PIC
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PIC_PROLOGUE(%i1, %o4)
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#endif
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/* now get sigmask and onstack flag */
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add %i0, 0x38, %o2 /* build sigcontext in [%o2]->sc.sc_mask */
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mov 1, %o0 /* SIG_BLOCK */
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/* sigprocmask(SIG_BLOCK, (sigset_t *)NULL, (sigset_t *)a) */
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#ifdef PIC
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#ifdef BIGPIC
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set _C_LABEL(__sigprocmask14), %o4
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ldx [%i1 + %o4], %g2
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#else
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ldx [%i1 + _C_LABEL(__sigprocmask14)], %g2
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#endif
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call %g2
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#else
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call _C_LABEL(__sigprocmask14)
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#endif
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clr %o1
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clr %o0 /* sigstack(NULL, &foo) */
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#ifdef PIC
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#ifdef BIGPIC
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set _C_LABEL(__sigaltstack14), %o4
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ldx [%i1 + %o4], %g2
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#else
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ldx [%i1 + _C_LABEL(__sigaltstack14)], %g2
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#endif
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call %g2
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#else
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call _C_LABEL(__sigaltstack14)
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#endif
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add %i0, 8, %o1 /* (foo being part of the sigcontext we're overwriting) */
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lduw [%i0 + 8 + 0x10], %o0 /* foo.ss_flags */
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and %o0, 1, %o1 /* onstack = foo.ss_flags & SS_ONSTACK; */
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st %o1, [%i0 + 0x00] /* sc.sc_onstack = current onstack; */
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/* store essential state */
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stx %fp, [%i0 + 0x08] /* sc.sc_sp = sp */
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add %i7, 8, %o0
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stx %o0, [%i0 + 0x10] /* sc.sc_pc = return_pc */
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stx %g0, [%i0 + 0x20] /* sc.sc_tstate = (clean ccr) */
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stx %l1, [%i0 + 0x28] /* sc.sc_g1 */
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stx %l2, [%i0 + 0x30] /* sc.sc_o0, set in longjmp, use as %g2 */
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/* 0x38: 4x32bit */ /* sc.sc_mask was already saved above */
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/* save additional registers needed to fill a complete mcontext */
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stx %l3, [%i0 + 0x48] /* adjust asserts in longjmp.c */
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stx %l6, [%i0 + 0x50] /* if you change any of these */
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stx %l7, [%i0 + 0x58] /* offsets! */
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ret /* return 0 */
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restore %g0, 0, %o0
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