Implementation of remote packets for Trace data.

Summary:
The changes consist of new packets for trace manipulation and
trace collection. The new packets are also documented. The packets
are capable of providing custom trace specific parameters to start
tracing and also retrieve such configuration from the server.

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

Reviewed By: clayborg, labath

Subscribers: krytarowski, lldb-commits

Differential Revision: https://reviews.llvm.org/D32585

llvm-svn: 303972

1 files changed, 9 insertions, 0 deletions

diff --git a/lldb/source/Utility/StringExtractor.cpp b/lldb/source/Utility/StringExtractor.cpp
index a94f6bcd008..cf5c7e22744 100644
--- a/lldb/source/Utility/StringExtractor.cpp
+++ b/lldb/source/Utility/StringExtractor.cpp
@@ -280,6 +280,15 @@ uint64_t StringExtractor::GetHexMaxU64(bool little_endian,
   return result;
 }
 
+bool StringExtractor::ConsumeFront(const llvm::StringRef &str) {
+  llvm::StringRef S = GetStringRef();
+  if (!S.startswith(str))
+    return false;
+  else
+    m_index += str.size();
+  return true;
+}
+
 size_t StringExtractor::GetHexBytes(llvm::MutableArrayRef<uint8_t> dest,
                                     uint8_t fail_fill_value) {
   size_t bytes_extracted = 0;