Implementation of Intel(R) Processor Trace support for Linux

Summary:
This patch implements support for Intel(R) Processor Trace
in lldb server. The changes have support for
starting/stopping and reading the trace data. The code
is only available on Linux versions where the perf
attributes for aux buffers are available.

The patch also consists of Unit tests for testing the
core buffer reading function.

Reviewers: lldb-commits, labath, clayborg, zturner, tberghammer

Reviewed By: labath, clayborg

Subscribers: mgorny

Differential Revision: https://reviews.llvm.org/D33674

llvm-svn: 306516

1 files changed, 4 insertions, 4 deletions

diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
index d34a79453fe..7523260c13e 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
@@ -1250,9 +1250,9 @@ GDBRemoteCommunicationServerLLGS::Handle_jTraceRead(
 
   lldb::user_id_t uid = LLDB_INVALID_UID;
 
-  size_t byte_count = std::numeric_limits<size_t>::max();
+  uint64_t byte_count = std::numeric_limits<uint64_t>::max();
   lldb::tid_t tid = LLDB_INVALID_THREAD_ID;
-  size_t offset = std::numeric_limits<size_t>::max();
+  uint64_t offset = std::numeric_limits<uint64_t>::max();
 
   auto json_object = StructuredData::ParseJSON(packet.Peek());
 
@@ -1286,8 +1286,8 @@ GDBRemoteCommunicationServerLLGS::Handle_jTraceRead(
   if (error.Fail())
     return SendErrorResponse(error.GetError());
 
-  for (size_t i = 0; i < buf.size(); ++i)
-    response.PutHex8(buf[i]);
+  for (auto i : buf)
+    response.PutHex8(i);
 
   StreamGDBRemote escaped_response;
   escaped_response.PutEscapedBytes(response.GetData(), response.GetSize());