1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (C) 2012 ARM Ltd.
4 */
5 #ifndef __ASM_SIGNAL32_H
6 #define __ASM_SIGNAL32_H
7
8 #ifdef CONFIG_COMPAT
9 #include <linux/compat.h>
10
11 struct compat_sigcontext {
12 /* We always set these two fields to 0 */
13 compat_ulong_t trap_no;
14 compat_ulong_t error_code;
15
16 compat_ulong_t oldmask;
17 compat_ulong_t arm_r0;
18 compat_ulong_t arm_r1;
19 compat_ulong_t arm_r2;
20 compat_ulong_t arm_r3;
21 compat_ulong_t arm_r4;
22 compat_ulong_t arm_r5;
23 compat_ulong_t arm_r6;
24 compat_ulong_t arm_r7;
25 compat_ulong_t arm_r8;
26 compat_ulong_t arm_r9;
27 compat_ulong_t arm_r10;
28 compat_ulong_t arm_fp;
29 compat_ulong_t arm_ip;
30 compat_ulong_t arm_sp;
31 compat_ulong_t arm_lr;
32 compat_ulong_t arm_pc;
33 compat_ulong_t arm_cpsr;
34 compat_ulong_t fault_address;
35 };
36
37 struct compat_ucontext {
38 compat_ulong_t uc_flags;
39 compat_uptr_t uc_link;
40 compat_stack_t uc_stack;
41 struct compat_sigcontext uc_mcontext;
42 compat_sigset_t uc_sigmask;
43 int __unused[32 - (sizeof(compat_sigset_t) / sizeof(int))];
44 compat_ulong_t uc_regspace[128] __attribute__((__aligned__(8)));
45 };
46
47 struct compat_sigframe {
48 struct compat_ucontext uc;
49 compat_ulong_t retcode[2];
50 };
51
52 struct compat_rt_sigframe {
53 struct compat_siginfo info;
54 struct compat_sigframe sig;
55 };
56
57 int compat_setup_frame(int usig, struct ksignal *ksig, sigset_t *set,
58 struct pt_regs *regs);
59 int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
60 struct pt_regs *regs);
61
62 void compat_setup_restart_syscall(struct pt_regs *regs);
63 #else
64
65 static inline int compat_setup_frame(int usid, struct ksignal *ksig,
66 sigset_t *set, struct pt_regs *regs)
67 {
68 return -ENOSYS;
69 }
70
71 static inline int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
72 struct pt_regs *regs)
73 {
74 return -ENOSYS;
75 }
76
77 static inline void compat_setup_restart_syscall(struct pt_regs *regs)
78 {
79 }
80 #endif /* CONFIG_COMPAT */
81 #endif /* __ASM_SIGNAL32_H */
82
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.