1 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
22 #include "ucontext_i.h"
24 /* __setcontext (const ucontext_t *ucp)
26 Restores the machine context in UCP and thereby resumes execution
29 This implementation is intended to be used for *synchronous* context
30 switches only. Therefore, it does not have to restore anything
31 other than the PRESERVED state. */
36 /* sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL). */
41 svc SYS_ify(rt_sigprocmask)
43 /* Load fpu context. */
47 ld %f2,SC_FPRS+16(%r1)
48 ld %f3,SC_FPRS+24(%r1)
49 ld %f4,SC_FPRS+32(%r1)
50 ld %f5,SC_FPRS+40(%r1)
51 ld %f6,SC_FPRS+48(%r1)
52 ld %f7,SC_FPRS+56(%r1)
53 ld %f8,SC_FPRS+64(%r1)
54 ld %f9,SC_FPRS+72(%r1)
55 ld %f10,SC_FPRS+80(%r1)
56 ld %f11,SC_FPRS+88(%r1)
57 ld %f12,SC_FPRS+96(%r1)
58 ld %f13,SC_FPRS+104(%r1)
59 ld %f14,SC_FPRS+112(%r1)
60 ld %f15,SC_FPRS+120(%r1)
62 /* Don't touch %a0 and %a1, used for thread purposes. */
63 lam %a2,%a15,SC_ACRS+8(%r1)
65 /* Load general purpose registers. */
66 lmg %r0,%r15,SC_GPRS(%r1)
72 weak_alias (__setcontext, setcontext)