1 /* syscall.h */ 2 3 #ifndef _ASM_PARISC_SYSCALL_H_ 4 #define _ASM_PARISC_SYSCALL_H_ 5 6 #include <uapi/linux/audit.h> 7 #include <linux/compat.h> 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 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 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 } 64 #endif /*_ASM_PARISC_SYSCALL_H_*/ 65