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Diffstat (limited to 'arch/parisc/kernel/ptrace.c')
-rw-r--r--arch/parisc/kernel/ptrace.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 2118ed02e88..08f6d2cbf0e 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -264,20 +264,19 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
}
#endif
+long do_syscall_trace_enter(struct pt_regs *regs)
+{
+ if (test_thread_flag(TIF_SYSCALL_TRACE) &&
+ tracehook_report_syscall_entry(regs))
+ return -1L;
+
+ return regs->gr[20];
+}
-void syscall_trace(int why)
+void do_syscall_trace_exit(struct pt_regs *regs)
{
- struct pt_regs *regs = &current->thread.regs;
+ int stepping = !!(current->ptrace & (PT_SINGLESTEP|PT_BLOCKSTEP));
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
- return;
- /*
- * Report the system call for tracing. Entry tracing can
- * decide to abort the call. We handle that by setting an
- * invalid syscall number (-1) to force an ENOSYS error.
- */
- if (why)
- tracehook_report_syscall_exit(regs, 0);
- else if (tracehook_report_syscall_entry(regs))
- regs->gr[20] = -1; /* force ENOSYS */
+ if (stepping || test_thread_flag(TIF_SYSCALL_TRACE))
+ tracehook_report_syscall_exit(regs, stepping);
}