Report watchpoint hits during single stepping.

Summary:
Reorganized NativeProcessLinux::MonitorSIGTRAP to check for watchpoint hits on
TRAP_TRACE.

Added test for stepping over watchpoints.

https://llvm.org/bugs/show_bug.cgi?id=22814

Reviewers: ovyalov, tberghammer, vharron, clayborg

Subscribers: jingham, labath, lldb-commits

Differential Revision: http://reviews.llvm.org/D8404

llvm-svn: 232784
diff --git a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.h b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.h
index a2ffd6c..07220e9 100644
--- a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.h
+++ b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.h
@@ -296,6 +296,15 @@
         MonitorSIGTRAP(const siginfo_t *info, lldb::pid_t pid);
 
         void
+        MonitorTrace(lldb::pid_t pid, NativeThreadProtocolSP thread_sp);
+
+        void
+        MonitorBreakpoint(lldb::pid_t pid, NativeThreadProtocolSP thread_sp);
+
+        void
+        MonitorWatchpoint(lldb::pid_t pid, NativeThreadProtocolSP thread_sp, uint32_t wp_index);
+
+        void
         MonitorSignal(const siginfo_t *info, lldb::pid_t pid, bool exited);
 
 #if 0