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| author | Max Filippov <jcmvbkbc@gmail.com> | 2018-11-11 21:51:49 -0800 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2018-12-17 13:50:25 -0800 |
| commit | af5395c214c15c18de3decf2229373a8c88c4fde (patch) | |
| tree | d378a62b132af1c2532f745e22c99ac69c40bba2 /arch/xtensa/include/asm/syscall.h | |
| parent | 9f24f3c1067c8e4ffbbcd759180b422c9a761b1b (diff) | |
xtensa: implement syscall tracepoints
Add TIF_SYSCALL_TRACEPOINT flag definition; add _TIF_SYSCALL_TRACEPOINT
to _TIF_WORK_MASK. Call trace_sys_enter from do_syscall_trace_enter and
trace_sys_exit from do_syscall_trace_leave when TIF_SYSCALL_TRACEPOINT
flag is set.
Add declaration of sys_call_table to arch/xtensa/include/asm/syscall.h
Add definition of NR_syscalls to arch/xtensa/include/asm/unistd.h
Select HAVE_SYSCALL_TRACEPOINTS.
This change allows tracing each syscall entry and exit through the
ftrace mechanism.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/include/asm/syscall.h')
| -rw-r--r-- | arch/xtensa/include/asm/syscall.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/syscall.h b/arch/xtensa/include/asm/syscall.h index e47470ec8ea8..a168bf81c7f4 100644 --- a/arch/xtensa/include/asm/syscall.h +++ b/arch/xtensa/include/asm/syscall.h @@ -19,6 +19,9 @@ static inline int syscall_get_arch(void) return AUDIT_ARCH_XTENSA; } +typedef void (*syscall_t)(void); +extern syscall_t sys_call_table[]; + static inline long syscall_get_nr(struct task_struct *task, struct pt_regs *regs) { |