2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2017 Michal Meloun <mmel@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/types.h>
33 #include <sys/ucontext.h>
36 #include <machine/sysarch.h>
40 mcontext_vfp_t mcontext_vfp;
44 __getcontextx_size(void)
47 return (sizeof(struct ucontextx));
51 __fillcontextx2(char *ctx)
53 struct ucontextx *ucxp;
56 struct arm_get_vfpstate_args vfp_arg;
58 ucxp = (struct ucontextx *)ctx;
59 ucp = &ucxp->ucontext;
60 mvp = &ucxp->mcontext_vfp;
62 vfp_arg.mc_vfp_size = sizeof(mcontext_vfp_t);
64 if (sysarch(ARM_GET_VFPSTATE, &vfp_arg) == -1)
66 ucp->uc_mcontext.mc_vfp_size = sizeof(mcontext_vfp_t);
67 ucp->uc_mcontext.mc_vfp_ptr = mvp;
72 __fillcontextx(char *ctx)
74 struct ucontextx *ucxp;
76 ucxp = (struct ucontextx *)ctx;
77 if (getcontext(&ucxp->ucontext) == -1)
83 __weak_reference(__getcontextx, getcontextx);
91 ctx = malloc(__getcontextx_size());
94 if (__fillcontextx(ctx) == -1) {
100 return ((ucontext_t *)ctx);