projects / mirror_ubuntu-focal-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| fb4f87a2 PM |
1 | #ifndef __ASM_SH_SYSCALL_64_H |
| 2 | #define __ASM_SH_SYSCALL_64_H | |
| 3 | ||
| 37d181bb | 4 | #include <uapi/linux/audit.h> |
| 94e2fb3d PM |
5 | #include <linux/kernel.h> |
| 6 | #include <linux/sched.h> | |
| 7 | #include <asm/ptrace.h> | |
| 8 | ||
| 9 | /* The system call number is given by the user in R9 */ | |
| 10 | static inline long syscall_get_nr(struct task_struct *task, | |
| 11 | struct pt_regs *regs) | |
| 12 | { | |
| 13 | return (regs->syscall_nr >= 0) ? regs->regs[9] : -1L; | |
| 14 | } | |
| 15 | ||
| 16 | static inline void syscall_rollback(struct task_struct *task, | |
| 17 | struct pt_regs *regs) | |
| 18 | { | |
| 19 | /* | |
| 20 | * XXX: This needs some thought. On SH we don't | |
| 21 | * save away the original R9 value anywhere. | |
| 22 | */ | |
| 23 | } | |
| 24 | ||
| 94e2fb3d PM |
25 | static inline long syscall_get_error(struct task_struct *task, |
| 26 | struct pt_regs *regs) | |
| 27 | { | |
| 03f07876 | 28 | return IS_ERR_VALUE(regs->regs[9]) ? regs->regs[9] : 0; |
| 94e2fb3d PM |
29 | } |
| 30 | ||
| 31 | static inline long syscall_get_return_value(struct task_struct *task, | |
| 32 | struct pt_regs *regs) | |
| 33 | { | |
| 34 | return regs->regs[9]; | |
| 35 | } | |
| 36 | ||
| 37 | static inline void syscall_set_return_value(struct task_struct *task, | |
| 38 | struct pt_regs *regs, | |
| 39 | int error, long val) | |
| 40 | { | |
| 03f07876 | 41 | if (error) |
| 94e2fb3d | 42 | regs->regs[9] = -error; |
| 03f07876 | 43 | else |
| 94e2fb3d | 44 | regs->regs[9] = val; |
| 94e2fb3d PM |
45 | } |
| 46 | ||
| 47 | static inline void syscall_get_arguments(struct task_struct *task, | |
| 48 | struct pt_regs *regs, | |
| 49 | unsigned int i, unsigned int n, | |
| 50 | unsigned long *args) | |
| 51 | { | |
| 52 | BUG_ON(i + n > 6); | |
| d7b01f78 | 53 | memcpy(args, ®s->regs[2 + i], n * sizeof(args[0])); |
| 94e2fb3d PM |
54 | } |
| 55 | ||
| 56 | static inline void syscall_set_arguments(struct task_struct *task, | |
| 57 | struct pt_regs *regs, | |
| 58 | unsigned int i, unsigned int n, | |
| 59 | const unsigned long *args) | |
| 60 | { | |
| 61 | BUG_ON(i + n > 6); | |
| d7b01f78 | 62 | memcpy(®s->regs[2 + i], args, n * sizeof(args[0])); |
| 94e2fb3d | 63 | } |
| fb4f87a2 | 64 | |
| 37d181bb EP |
65 | static inline int syscall_get_arch(void) |
| 66 | { | |
| 67 | int arch = AUDIT_ARCH_SH; | |
| 68 | ||
| 69 | #ifdef CONFIG_64BIT | |
| 70 | arch |= __AUDIT_ARCH_64BIT; | |
| 71 | #endif | |
| 72 | #ifdef CONFIG_CPU_LITTLE_ENDIAN | |
| 73 | arch |= __AUDIT_ARCH_LE; | |
| 74 | #endif | |
| 75 | ||
| 76 | return arch; | |
| 77 | } | |
| fb4f87a2 | 78 | #endif /* __ASM_SH_SYSCALL_64_H */ |