diff options
Diffstat (limited to 'arch/arc/include/asm/syscall.h')
| -rw-r--r-- | arch/arc/include/asm/syscall.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arc/include/asm/syscall.h b/arch/arc/include/asm/syscall.h index 9709256e31c8..728d625a10f1 100644 --- a/arch/arc/include/asm/syscall.h +++ b/arch/arc/include/asm/syscall.h @@ -24,6 +24,17 @@ syscall_get_nr(struct task_struct *task, struct pt_regs *regs) } static inline void +syscall_set_nr(struct task_struct *task, struct pt_regs *regs, int nr) +{ + /* + * Unlike syscall_get_nr(), syscall_set_nr() can be called only when + * the target task is stopped for tracing on entering syscall, so + * there is no need to have the same check syscall_get_nr() has. + */ + regs->r8 = nr; +} + +static inline void syscall_rollback(struct task_struct *task, struct pt_regs *regs) { regs->r0 = regs->orig_r0; @@ -67,6 +78,20 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, } } +static inline void +syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, + unsigned long *args) +{ + unsigned long *inside_ptregs = ®s->r0; + unsigned int n = 6; + unsigned int i = 0; + + while (n--) { + *inside_ptregs = args[i++]; + inside_ptregs--; + } +} + static inline int syscall_get_arch(struct task_struct *task) { |