1/* setjmp for C-SKY ABIV2.
2 Copyright (C) 2018-2024 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 <pointer_guard.h>
21
22ENTRY (setjmp)
23 movi a1, 1
24 br __sigsetjmp
25END (setjmp)
26
27ENTRY (_setjmp)
28 movi a1, 0
29 br __sigsetjmp
30END (_setjmp)
31
32libc_hidden_def (_setjmp)
33
34ENTRY (__sigsetjmp)
35 mov a2, a0
36 /* Save registers. */
37
38#ifdef PTR_MANGLE
39 PTR_MANGLE (t0, sp, a3)
40 stw t0, (a2, 0)
41 PTR_MANGLE2 (t0, lr, a3)
42 stw t0, (a2, 4)
43#else
44 stw sp, (a2, 0)
45 stw lr, (a2, 4)
46#endif
47 stw r4, (a2, 8)
48 stw r5, (a2, 12)
49 stw r6, (a2, 16)
50 stw r7, (a2, 20)
51 stw r8, (a2, 24)
52 stw r9, (a2, 28)
53 stw r10, (a2, 32)
54 stw r11, (a2, 36)
55 stw r16, (a2, 40)
56 stw r17, (a2, 44)
57 stw r26, (a2, 48)
58 stw r27, (a2, 52)
59 stw r28, (a2, 56)
60 stw r29, (a2, 60)
61 stw r30, (a2, 64)
62 stw r31, (a2, 68)
63 addi a2, 72
64
65#ifdef __PIC__
66 grs t1, .Lgetpc
67.Lgetpc:
68 lrw t0, .Lgetpc@GOTPC
69 addu t1, t0
70 lrw a2, __sigjmp_save@PLT
71 ldr.w a2, (t1, a2 << 0)
72 jmp a2
73#else
74 jmpi __sigjmp_save
75#endif /* !__PIC__ */
76END (__sigsetjmp)
77
78hidden_def (__sigsetjmp)
79

source code of glibc/sysdeps/csky/abiv2/setjmp.S