1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 #ifndef __ASM_SH_SYSCALL_32_H
3 #define __ASM_SH_SYSCALL_32_H
4
5 #include <uapi/linux/audit.h>
6 #include <linux/kernel.h>
7 #include <linux/sched.h>
8 #include <linux/err.h>
9 #include <asm/ptrace.h>
10
11 /* The system call number is given by the user
12 static inline long syscall_get_nr(struct task_
13 struct pt_re
14 {
15 return (regs->tra >= 0) ? regs->regs[3
16 }
17
18 static inline void syscall_rollback(struct tas
19 struct pt_
20 {
21 /*
22 * XXX: This needs some thought. On SH
23 * save away the original r0 value any
24 */
25 }
26
27 static inline long syscall_get_error(struct ta
28 struct pt
29 {
30 return IS_ERR_VALUE(regs->regs[0]) ? r
31 }
32
33 static inline long syscall_get_return_value(st
34 st
35 {
36 return regs->regs[0];
37 }
38
39 static inline void syscall_set_return_value(st
40 st
41 in
42 {
43 regs->regs[0] = (long) error ?: val;
44 }
45
46 static inline void syscall_get_arguments(struc
47 struc
48 unsig
49 {
50
51 /* Argument pattern is: R4, R5, R6, R7
52 args[5] = regs->regs[1];
53 args[4] = regs->regs[0];
54 args[3] = regs->regs[7];
55 args[2] = regs->regs[6];
56 args[1] = regs->regs[5];
57 args[0] = regs->regs[4];
58 }
59
60 static inline int syscall_get_arch(struct task
61 {
62 int arch = AUDIT_ARCH_SH;
63
64 #ifdef CONFIG_CPU_LITTLE_ENDIAN
65 arch |= __AUDIT_ARCH_LE;
66 #endif
67 return arch;
68 }
69 #endif /* __ASM_SH_SYSCALL_32_H */
70
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