Discover support of 'p' packet.

Some stubs only support g/G packets for registers.
This change makes sure that we check if remote stub supports 'p' packet before using it.

llvm-svn: 189576

1 files changed, 2 insertions, 1 deletions

diff --git a/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp b/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
index 38fb84d66ef..b405f03463c 100644
--- a/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.cpp
@@ -164,7 +164,6 @@ lldb::RegisterContextSP
 ThreadGDBRemote::CreateRegisterContextForFrame (StackFrame *frame)
 {
     lldb::RegisterContextSP reg_ctx_sp;
-    const bool read_all_registers_at_once = false;
     uint32_t concrete_frame_idx = 0;
     
     if (frame)
@@ -177,6 +176,8 @@ ThreadGDBRemote::CreateRegisterContextForFrame (StackFrame *frame)
         if (process_sp)
         {
             ProcessGDBRemote *gdb_process = static_cast<ProcessGDBRemote *>(process_sp.get());
+            // read_all_registers_at_once will be true if 'p' packet is not supported.
+            bool read_all_registers_at_once = !gdb_process->GetGDBRemote().GetpPacketSupported ();
             reg_ctx_sp.reset (new GDBRemoteRegisterContext (*this, concrete_frame_idx, gdb_process->m_register_info, read_all_registers_at_once));
         }
     }