On Mon, Mar 25, 2019 at 08:03:39PM +0800, [email protected] wrote: > From: Guo Ren <[email protected]> > > 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 <[email protected]> > Cc: Dmitry V. Levin <[email protected]> > Cc: Arnd Bergmann <[email protected]> > --- > arch/csky/Kconfig | 2 ++ > arch/csky/include/asm/syscall.h | 2 ++ > arch/csky/include/asm/thread_info.h | 25 ++++++++----------- > arch/csky/include/asm/unistd.h | 2 ++ > arch/csky/include/uapi/asm/ptrace.h | 5 ++++ > arch/csky/kernel/entry.S | 21 +++++++--------- ... > diff --git a/arch/csky/kernel/entry.S b/arch/csky/kernel/entry.S > index 5137ed9..ebd1957 100644 > --- a/arch/csky/kernel/entry.S > +++ b/arch/csky/kernel/entry.S > @@ -136,8 +136,8 @@ ENTRY(csky_systemcall) > bmaski r10, THREAD_SHIFT > andn r9, r10 > ldw r8, (r9, TINFO_FLAGS) > - btsti r8, TIF_SYSCALL_TRACE > - bt 1f > + andi r8, (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT | > _TIF_SYSCALL_AUDIT) > + bt csky_syscall_trace > #if defined(__CSKYABIV2__) > subi sp, 8 > stw r5, (sp, 0x4) > @@ -150,10 +150,9 @@ ENTRY(csky_systemcall) > stw a0, (sp, LSAVE_A0) /* Save return value */ > jmpi ret_from_exception > > -1: > - movi a0, 0 /* enter system call */ > - mov a1, sp /* sp = pt_regs pointer */ > - jbsr syscall_trace > +csky_syscall_trace: > + mov a0, sp /* sp = pt_regs pointer */ > + jbsr syscall_trace_enter > /* Prepare args before do system call */ > ldw a0, (sp, LSAVE_A0) > ldw a1, (sp, LSAVE_A1) > @@ -173,9 +172,8 @@ ENTRY(csky_systemcall) > #endif > stw a0, (sp, LSAVE_A0) /* Save return value */ > > - movi a0, 1 /* leave system call */ > - mov a1, sp /* right now, sp --> pt_regs */ > - jbsr syscall_trace > + mov a0, sp /* right now, sp --> pt_regs */ > + jbsr syscall_trace_exit > br ret_from_exception > > ENTRY(ret_from_kernel_thread) > @@ -193,9 +191,8 @@ ENTRY(ret_from_fork) > movi r11_sig, 1 > btsti r8, TIF_SYSCALL_TRACE It's wrong, I should use: + andi r8, (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT | _TIF_SYSCALL_AUDIT)
Best Regards Guo Ren
