Add the capability to display the number of supported hardware watchpoints to the "watchpoint list" command.

Add default Process::GetWatchpointSupportInfo() impl which returns an error of "not supported".
Add "qWatchpointSupportInfo" packet to the gdb communication layer to support this, and modify TestWatchpointCommands.py to test it.

llvm-svn: 157345

1 files changed, 9 insertions, 0 deletions

diff --git a/lldb/source/Commands/CommandObjectWatchpoint.cpp b/lldb/source/Commands/CommandObjectWatchpoint.cpp
index 8387cb638e3..56b95abefdc 100644
--- a/lldb/source/Commands/CommandObjectWatchpoint.cpp
+++ b/lldb/source/Commands/CommandObjectWatchpoint.cpp
@@ -290,6 +290,15 @@ CommandObjectWatchpointList::Execute(Args& args, CommandReturnObject &result)
         return true;
     }
 
+    if (target->GetProcessSP() && target->GetProcessSP()->IsAlive())
+    {
+        uint32_t num_supported_hardware_watchpoints;
+        Error error = target->GetProcessSP()->GetWatchpointSupportInfo(num_supported_hardware_watchpoints);
+        if (error.Success())
+            result.AppendMessageWithFormat("Number of supported hardware watchpoints: %u\n",
+                                           num_supported_hardware_watchpoints);
+    }
+
     const WatchpointList &watchpoints = target->GetWatchpointList();
     Mutex::Locker locker;
     target->GetWatchpointList().GetListMutex(locker);