1/* longjmp, RISC-V version.
2 Copyright (C) 1996-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
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.
9
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.
14
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/>. */
18
19#include <sysdep.h>
20#include <sys/asm.h>
21
22ENTRY (__longjmp)
23 REG_L ra, 0*SZREG(a0)
24 REG_L s0, 1*SZREG(a0)
25 REG_L s1, 2*SZREG(a0)
26 REG_L s2, 3*SZREG(a0)
27 REG_L s3, 4*SZREG(a0)
28 REG_L s4, 5*SZREG(a0)
29 REG_L s5, 6*SZREG(a0)
30 REG_L s6, 7*SZREG(a0)
31 REG_L s7, 8*SZREG(a0)
32 REG_L s8, 9*SZREG(a0)
33 REG_L s9, 10*SZREG(a0)
34 REG_L s10,11*SZREG(a0)
35 REG_L s11,12*SZREG(a0)
36 REG_L sp, 13*SZREG(a0)
37
38#ifndef __riscv_float_abi_soft
39 FREG_L fs0, 14*SZREG+ 0*SZFREG(a0)
40 FREG_L fs1, 14*SZREG+ 1*SZFREG(a0)
41 FREG_L fs2, 14*SZREG+ 2*SZFREG(a0)
42 FREG_L fs3, 14*SZREG+ 3*SZFREG(a0)
43 FREG_L fs4, 14*SZREG+ 4*SZFREG(a0)
44 FREG_L fs5, 14*SZREG+ 5*SZFREG(a0)
45 FREG_L fs6, 14*SZREG+ 6*SZFREG(a0)
46 FREG_L fs7, 14*SZREG+ 7*SZFREG(a0)
47 FREG_L fs8, 14*SZREG+ 8*SZFREG(a0)
48 FREG_L fs9, 14*SZREG+ 9*SZFREG(a0)
49 FREG_L fs10,14*SZREG+10*SZFREG(a0)
50 FREG_L fs11,14*SZREG+11*SZFREG(a0)
51#endif
52
53 seqz a0, a1
54 add a0, a0, a1 # a0 = (a1 == 0) ? 1 : a1
55 ret
56
57END (__longjmp)
58

source code of glibc/sysdeps/riscv/__longjmp.S