Update LLDB snapshot to upstream r202189

Highlights include:

- Support hardware watchpoints on FreeBSD
  (r201706)

- Improved unwinding through hand-written assembly functions
  (r201839)

- Handle DW_TAG_unspecified_parameters for variadic functions
  (r202061)

- Fix Ctrl+C interrupting a running inferior process
  (r202086, r202154)

- Various bug fixes, including to the remote GDB protocol client

Sponsored by:	DARPA, AFRL

1 files changed, 7 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
index 1ec75a4..72600d8 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
+++ b/contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
@@ -497,6 +497,13 @@ GDBRemoteCommunication::CheckForPacket (const uint8_t *src, size_t src_len, Stri
                     for (int i = 0; i < repeat_count; ++i)
                         packet_str.push_back(char_to_repeat);
                 }
+                else if (*c == 0x7d)
+                {
+                    // 0x7d is the escape character.  The next character is to
+                    // be XOR'd with 0x20.
+                    char escapee = *++c ^ 0x20;
+                    packet_str.push_back(escapee);
+                }
                 else
                 {
                     packet_str.push_back(*c);