1 /* Save current context.
2 Copyright (C) 2009-2018 Free Software Foundation, Inc.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library. If not, see
16 <http://www.gnu.org/licenses/>. */
18 #include "ucontext-macros.h"
20 /* int getcontext (ucontext_t *ucp) */
24 SAVE_INT_REG (ra, 0, a0)
25 SAVE_INT_REG (ra, 1, a0)
26 SAVE_INT_REG (sp, 2, a0)
27 SAVE_INT_REG (s0, 8, a0)
28 SAVE_INT_REG (s1, 9, a0)
29 SAVE_INT_REG (x0, 10, a0) /* return 0 by overwriting a0. */
30 SAVE_INT_REG (s2, 18, a0)
31 SAVE_INT_REG (s3, 19, a0)
32 SAVE_INT_REG (s4, 20, a0)
33 SAVE_INT_REG (s5, 21, a0)
34 SAVE_INT_REG (s6, 22, a0)
35 SAVE_INT_REG (s7, 23, a0)
36 SAVE_INT_REG (s8, 24, a0)
37 SAVE_INT_REG (s9, 25, a0)
38 SAVE_INT_REG (s10, 26, a0)
39 SAVE_INT_REG (s11, 27, a0)
41 #ifndef __riscv_float_abi_soft
44 SAVE_FP_REG (fs0, 8, a0)
45 SAVE_FP_REG (fs1, 9, a0)
46 SAVE_FP_REG (fs2, 18, a0)
47 SAVE_FP_REG (fs3, 19, a0)
48 SAVE_FP_REG (fs4, 20, a0)
49 SAVE_FP_REG (fs5, 21, a0)
50 SAVE_FP_REG (fs6, 22, a0)
51 SAVE_FP_REG (fs7, 23, a0)
52 SAVE_FP_REG (fs8, 24, a0)
53 SAVE_FP_REG (fs9, 25, a0)
54 SAVE_FP_REG (fs10, 26, a0)
55 SAVE_FP_REG (fs11, 27, a0)
57 sw a1, MCONTEXT_FSR(a0)
58 #endif /* __riscv_float_abi_soft */
60 /* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
62 add a2, a0, UCONTEXT_SIGMASK
66 li a7, SYS_ify (rt_sigprocmask)
74 PSEUDO_END (getcontext)