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csky: Update syscall_trace_enter/exit implementation

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Previous syscall_trace implementation couldn't support AUDITSYSCALL and
SYSCALL_TRACEPOINTS. Now we redesign it to support audit_syscall
and syscall_tracepoints just like other archs'.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Dmitry V. Levin <ldv@altlinux.org>
Cc: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Guo Ren
2019-03-20 18:27:27 +08:00
parent cfa4d93b97
commit 2f7932b011
9 changed files with 65 additions and 53 deletions
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27
arch/csky/include/asm/thread_info.h
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@@ -51,29 +51,26 @@ static inline struct thread_info *current_thread_info(void)
#endif /* !__ASSEMBLY__ */
/* entry.S relies on these definitions!
* bits 0-5 are tested at every exception exit
*/
#define TIF_SIGPENDING 0 /* signal pending */
#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
#define TIF_SYSCALL_TRACE 5 /* syscall trace active */
#define TIF_DELAYED_TRACE 14 /* single step a syscall */
#define TIF_SYSCALL_TRACE 3 /* syscall trace active */
#define TIF_SYSCALL_TRACEPOINT 4 /* syscall tracepoint instrumentation */
#define TIF_SYSCALL_AUDIT 5 /* syscall auditing */
#define TIF_POLLING_NRFLAG 16 /* poll_idle() is TIF_NEED_RESCHED */
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
#define TIF_FREEZE 19 /* thread is freezing for suspend */
#define TIF_RESTORE_SIGMASK 20 /* restore signal mask in do_signal() */
#define TIF_SECCOMP 21 /* secure computing */
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_DELAYED_TRACE (1 << TIF_DELAYED_TRACE)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_FREEZE (1 << TIF_FREEZE)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
#endif /* _ASM_CSKY_THREAD_INFO_H */