diff options
Diffstat (limited to 'arch/csky/kernel/entry.S')
| -rw-r--r-- | arch/csky/kernel/entry.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/csky/kernel/entry.S b/arch/csky/kernel/entry.S index f13800383a19..efd2e696e3cd 100644 --- a/arch/csky/kernel/entry.S +++ b/arch/csky/kernel/entry.S @@ -168,6 +168,8 @@ ENTRY(csky_systemcall) csky_syscall_trace: mov a0, sp /* sp = pt_regs pointer */ jbsr syscall_trace_enter + cmpnei a0, 0 + bt 1f /* Prepare args before do system call */ ldw a0, (sp, LSAVE_A0) ldw a1, (sp, LSAVE_A1) @@ -188,6 +190,7 @@ csky_syscall_trace: #endif stw a0, (sp, LSAVE_A0) /* Save return value */ +1: #ifdef CONFIG_DEBUG_RSEQ mov a0, sp jbsr rseq_syscall |