projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 40e03b68 KM |
1 | /* syscall.h */ |
| 2 | ||
| 3 | #ifndef _ASM_PARISC_SYSCALL_H_ | |
| 4 | #define _ASM_PARISC_SYSCALL_H_ | |
| 5 | ||
| ce5d1128 EP |
6 | #include <uapi/linux/audit.h> |
| 7 | #include <linux/compat.h> | |
| 40e03b68 KM |
8 | #include <linux/err.h> |
| 9 | #include <asm/ptrace.h> | |
| 10 | ||
| 11 | static inline long syscall_get_nr(struct task_struct *tsk, | |
| 12 | struct pt_regs *regs) | |
| 13 | { | |
| 14 | return regs->gr[20]; | |
| 15 | } | |
| 16 | ||
| 17 | static inline void syscall_get_arguments(struct task_struct *tsk, | |
| 18 | struct pt_regs *regs, unsigned int i, | |
| 19 | unsigned int n, unsigned long *args) | |
| 20 | { | |
| 21 | BUG_ON(i); | |
| 22 | ||
| 23 | switch (n) { | |
| 24 | case 6: | |
| 25 | args[5] = regs->gr[21]; | |
| 26 | case 5: | |
| 27 | args[4] = regs->gr[22]; | |
| 28 | case 4: | |
| 29 | args[3] = regs->gr[23]; | |
| 30 | case 3: | |
| 31 | args[2] = regs->gr[24]; | |
| 32 | case 2: | |
| 33 | args[1] = regs->gr[25]; | |
| 34 | case 1: | |
| 35 | args[0] = regs->gr[26]; | |
| 36 | break; | |
| 37 | default: | |
| 38 | BUG(); | |
| 39 | } | |
| 40 | } | |
| 41 | ||
| 910cd32e HD |
42 | static inline void syscall_set_return_value(struct task_struct *task, |
| 43 | struct pt_regs *regs, | |
| 44 | int error, long val) | |
| 45 | { | |
| 46 | regs->gr[28] = error ? error : val; | |
| 47 | } | |
| 48 | ||
| 49 | static inline void syscall_rollback(struct task_struct *task, | |
| 50 | struct pt_regs *regs) | |
| 51 | { | |
| 52 | /* do nothing */ | |
| 53 | } | |
| 54 | ||
| ce5d1128 EP |
55 | static inline int syscall_get_arch(void) |
| 56 | { | |
| 57 | int arch = AUDIT_ARCH_PARISC; | |
| 58 | #ifdef CONFIG_64BIT | |
| 59 | if (!is_compat_task()) | |
| 60 | arch = AUDIT_ARCH_PARISC64; | |
| 61 | #endif | |
| 62 | return arch; | |
| 63 | } | |
| 40e03b68 | 64 | #endif /*_ASM_PARISC_SYSCALL_H_*/ |