1/* setjmp for RISC-V.
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 (_setjmp)
23 li a1, 0
24 j HIDDEN_JUMPTARGET (__sigsetjmp)
25END (_setjmp)
26ENTRY (setjmp)
27 li a1, 1
28 /* Fallthrough */
29END (setjmp)
30ENTRY (__sigsetjmp)
31 REG_S ra, 0*SZREG(a0)
32 REG_S s0, 1*SZREG(a0)
33 REG_S s1, 2*SZREG(a0)
34 REG_S s2, 3*SZREG(a0)
35 REG_S s3, 4*SZREG(a0)
36 REG_S s4, 5*SZREG(a0)
37 REG_S s5, 6*SZREG(a0)
38 REG_S s6, 7*SZREG(a0)
39 REG_S s7, 8*SZREG(a0)
40 REG_S s8, 9*SZREG(a0)
41 REG_S s9, 10*SZREG(a0)
42 REG_S s10,11*SZREG(a0)
43 REG_S s11,12*SZREG(a0)
44 REG_S sp, 13*SZREG(a0)
45
46#ifndef __riscv_float_abi_soft
47 FREG_S fs0, 14*SZREG+ 0*SZFREG(a0)
48 FREG_S fs1, 14*SZREG+ 1*SZFREG(a0)
49 FREG_S fs2, 14*SZREG+ 2*SZFREG(a0)
50 FREG_S fs3, 14*SZREG+ 3*SZFREG(a0)
51 FREG_S fs4, 14*SZREG+ 4*SZFREG(a0)
52 FREG_S fs5, 14*SZREG+ 5*SZFREG(a0)
53 FREG_S fs6, 14*SZREG+ 6*SZFREG(a0)
54 FREG_S fs7, 14*SZREG+ 7*SZFREG(a0)
55 FREG_S fs8, 14*SZREG+ 8*SZFREG(a0)
56 FREG_S fs9, 14*SZREG+ 9*SZFREG(a0)
57 FREG_S fs10,14*SZREG+10*SZFREG(a0)
58 FREG_S fs11,14*SZREG+11*SZFREG(a0)
59#endif
60
61#if !IS_IN (libc) && IS_IN (rtld)
62 /* In ld.so we never save the signal mask. */
63 li a0, 0
64 ret
65#else
66 /* Make a tail call to __sigjmp_save; it takes the same args. */
67 j __sigjmp_save
68#endif
69
70
71END (__sigsetjmp)
72
73hidden_def (__sigsetjmp)
74weak_alias (_setjmp, __GI__setjmp)
75

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