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 | |
22 | ENTRY (_setjmp) |
23 | li a1, 0 |
24 | j HIDDEN_JUMPTARGET (__sigsetjmp) |
25 | END (_setjmp) |
26 | ENTRY (setjmp) |
27 | li a1, 1 |
28 | /* Fallthrough */ |
29 | END (setjmp) |
30 | ENTRY (__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 | |
71 | END (__sigsetjmp) |
72 | |
73 | hidden_def (__sigsetjmp) |
74 | weak_alias (_setjmp, __GI__setjmp) |
75 | |