Merge branch 'sh/stable-updates'

2 files changed, 12 insertions, 3 deletions

diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index 2f6140e95ec5..5fd644da7f02 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -132,6 +132,8 @@ void user_enable_single_step(struct task_struct *child)
         struct pt_regs *regs = child->thread.uregs;
 
         regs->sr |= SR_SSTEP;   /* auto-resetting upon exception */
+
+        set_tsk_thread_flag(child, TIF_SINGLESTEP);
 }
 
 void user_disable_single_step(struct task_struct *child)
@@ -139,6 +141,8 @@ void user_disable_single_step(struct task_struct *child)
         struct pt_regs *regs = child->thread.uregs;
 
         regs->sr &= ~SR_SSTEP;
+
+        clear_tsk_thread_flag(child, TIF_SINGLESTEP);
 }
 
 static int genregs_get(struct task_struct *target,
@@ -453,6 +457,8 @@ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
 
 asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
 {
+        int step;
+
         if (unlikely(current->audit_context))
                 audit_syscall_exit(AUDITSC_RESULT(regs->regs[9]),
                                    regs->regs[9]);
@@ -460,8 +466,9 @@ asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
         if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
                 trace_sys_exit(regs, regs->regs[9]);
 
-        if (test_thread_flag(TIF_SYSCALL_TRACE))
-                tracehook_report_syscall_exit(regs, 0);
+        step = test_thread_flag(TIF_SINGLESTEP);
+        if (step || test_thread_flag(TIF_SYSCALL_TRACE))
+                tracehook_report_syscall_exit(regs, step);
 }
 
 /* Called with interrupts disabled */
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index 4733bfc59d39..5a9f1f10ebf4 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -118,7 +118,9 @@ static int do_signal(struct pt_regs *regs, sigset_t *oldset)
                          * clear the TS_RESTORE_SIGMASK flag.
                          */
                         current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-                        tracehook_signal_handler(signr, &info, &ka, regs, 0);
+
+                        tracehook_signal_handler(signr, &info, &ka, regs,
+                                        test_thread_flag(TIF_SINGLESTEP));
                         return 1;
                 }
         }