diff options
| author | Guo Ren | 2019-03-20 11:27:27 +0100 |
|---|---|---|
| committer | Guo Ren | 2019-04-22 07:44:57 +0200 |
| commit | 2f7932b011e7fb9f98732f95a68f6017d4d8c542 (patch) | |
| tree | 57fb64c49ac949c030f73871ad8f6b6dc4975a4c /arch/csky/include | |
| parent | csky: Add perf callchain support (diff) | |
| download | kernel-qcow2-linux-2f7932b011e7fb9f98732f95a68f6017d4d8c542.tar.gz kernel-qcow2-linux-2f7932b011e7fb9f98732f95a68f6017d4d8c542.tar.xz kernel-qcow2-linux-2f7932b011e7fb9f98732f95a68f6017d4d8c542.zip | |
csky: Update syscall_trace_enter/exit implementation
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>
Diffstat (limited to 'arch/csky/include')
| -rw-r--r-- | arch/csky/include/asm/syscall.h | 2 | ||||
| -rw-r--r-- | arch/csky/include/asm/thread_info.h | 27 | ||||
| -rw-r--r-- | arch/csky/include/asm/unistd.h | 2 | ||||
| -rw-r--r-- | arch/csky/include/uapi/asm/ptrace.h | 5 |
4 files changed, 21 insertions, 15 deletions
diff --git a/arch/csky/include/asm/syscall.h b/arch/csky/include/asm/syscall.h index bda0a446c63e..850b694a463e 100644 --- a/arch/csky/include/asm/syscall.h +++ b/arch/csky/include/asm/syscall.h @@ -8,6 +8,8 @@ #include <abi/regdef.h> #include <uapi/linux/audit.h> +extern void *sys_call_table[]; + static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs) { diff --git a/arch/csky/include/asm/thread_info.h b/arch/csky/include/asm/thread_info.h index 0e9d035d712b..0b546a55a8bf 100644 --- a/arch/csky/include/asm/thread_info.h +++ b/arch/csky/include/asm/thread_info.h @@ -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 */ diff --git a/arch/csky/include/asm/unistd.h b/arch/csky/include/asm/unistd.h index 284487477a61..da7a18295615 100644 --- a/arch/csky/include/asm/unistd.h +++ b/arch/csky/include/asm/unistd.h @@ -2,3 +2,5 @@ // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. #include <uapi/asm/unistd.h> + +#define NR_syscalls (__NR_syscalls) diff --git a/arch/csky/include/uapi/asm/ptrace.h b/arch/csky/include/uapi/asm/ptrace.h index a4eaa8ddf0b1..9bf5b1a415d0 100644 --- a/arch/csky/include/uapi/asm/ptrace.h +++ b/arch/csky/include/uapi/asm/ptrace.h @@ -62,6 +62,11 @@ struct user_fp { #define instruction_pointer(regs) ((regs)->pc) #define profile_pc(regs) instruction_pointer(regs) +static inline unsigned long regs_return_value(struct pt_regs *regs) +{ + return regs->a0; +} + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ #endif /* _CSKY_PTRACE_H */ |