Intel(R) Memory Protection Extensions (Intel(R) MPX) support.

Summary:

The Intel(R) Memory Protection Extensions (Intel(R) MPX) associates pointers
to bounds, against which the software can check memory references to
prevent out of bound memory access.

This patch allows accessing the MPX registers:
  * bnd0-3: 128-bit registers to hold the bound values,
  * bndcfgu, bndstatus: 64-bit configuration registers,

This patch also adds read/write tests for the MPX registers in the register
command tests and adds a new subdirectory for MPX specific tests.

Signed-off-by: Valentina Giusti <valentina.giusti@intel.com>

Reviewers: labath, granata.enrico, lldb-commits, clayborg

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D24187

llvm-svn: 280668

2 files changed, 4 insertions, 0 deletions

diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
index 04720ace197..f117dc8eb82 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
@@ -1566,6 +1566,7 @@ GDBRemoteCommunicationServerLLGS::Handle_qRegisterInfo (StringExtractorGDBRemote
         case eFormatVectorOfSInt32:  response.PutCString ("format:vector-sint32;"); break;
         case eFormatVectorOfUInt32:  response.PutCString ("format:vector-uint32;"); break;
         case eFormatVectorOfFloat32: response.PutCString ("format:vector-float32;"); break;
+        case eFormatVectorOfUInt64:  response.PutCString ("format:vector-uint64;"); break;
         case eFormatVectorOfUInt128: response.PutCString ("format:vector-uint128;"); break;
         default: break;
     };
diff --git a/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp b/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
index 3f7b64c8221..1bb16bbcfe9 100644
--- a/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -610,6 +610,7 @@ ProcessGDBRemote::BuildDynamicRegisterInfo (bool force)
                                                   .Case("vector-sint32", eFormatVectorOfSInt32)
                                                   .Case("vector-uint32", eFormatVectorOfUInt32)
                                                   .Case("vector-float32", eFormatVectorOfFloat32)
+                                                  .Case("vector-uint64", eFormatVectorOfUInt64)
                                                   .Case("vector-uint128", eFormatVectorOfUInt128)
                                                   .Default(eFormatInvalid);
                         }
@@ -4545,6 +4546,8 @@ ParseRegisters (XMLNode feature_node, GdbServerTargetInfo &target_info, GDBRemot
                     reg_info.format = eFormatVectorOfUInt32;
                 else if (value == "vector-float32")
                     reg_info.format = eFormatVectorOfFloat32;
+                else if (value == "vector-uint64")
+                    reg_info.format = eFormatVectorOfUInt64;
                 else if (value == "vector-uint128")
                     reg_info.format = eFormatVectorOfUInt128;
             }