Update LLDB snapshot to upstream r202189

Highlights include (upstream revs in parens):

- Improvements to the remote GDB protocol client
  (r196610, r197579, r197857, r200072, and others)

- Bug fixes for big-endian targets
  (r196808)

- Initial support for libdispatch (GCD) queues in the debuggee
  (r197190)

- Add "step-avoid-libraries" setting
  (r199943)

- IO subsystem improvements (including initial work on a curses gui)
  (r200263)

- 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 for memory leaks, LLDB segfaults, the C++ demangler,
  ELF core files, DWARF debug info, and others.

Sponsored by:	DARPA, AFRL

1 files changed, 6 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/lldb-log.cpp b/contrib/llvm/tools/lldb/source/lldb-log.cpp
index 5e1dc3a..12ec3a5 100644
--- a/contrib/llvm/tools/lldb/source/lldb-log.cpp
+++ b/contrib/llvm/tools/lldb/source/lldb-log.cpp
@@ -141,6 +141,7 @@ lldb_private::DisableLog (const char **categories, Stream *feedback_strm)
                 else if (0 == ::strncasecmp(arg, "unwind", 6))  flag_bits &= ~LIBLLDB_LOG_UNWIND;
                 else if (0 == ::strncasecmp(arg, "types", 5))   flag_bits &= ~LIBLLDB_LOG_TYPES;
                 else if (0 == ::strncasecmp(arg, "symbol", 6))  flag_bits &= ~LIBLLDB_LOG_SYMBOLS;
+                else if (0 == ::strcasecmp(arg, "system-runtime"))  flag_bits &= ~LIBLLDB_LOG_SYSTEM_RUNTIME;
                 else if (0 == ::strncasecmp(arg, "module", 6))  flag_bits &= ~LIBLLDB_LOG_MODULES;
                 else if (0 == ::strncasecmp(arg, "mmap", 4))    flag_bits &= ~LIBLLDB_LOG_MMAP;
                 else if (0 == ::strcasecmp(arg, "os"))          flag_bits &= ~LIBLLDB_LOG_OS;
@@ -155,7 +156,10 @@ lldb_private::DisableLog (const char **categories, Stream *feedback_strm)
         }
         log->GetMask().Reset (flag_bits);
         if (flag_bits == 0)
+        {
+            log->SetStream(lldb::StreamSP());
             g_log_enabled = false;
+        }
     }
 
     return;
@@ -208,6 +212,7 @@ lldb_private::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, const ch
             else if (0 == ::strcasecmp(arg, "state"))       flag_bits |= LIBLLDB_LOG_STATE;
             else if (0 == ::strcasecmp(arg, "step"))        flag_bits |= LIBLLDB_LOG_STEP;
             else if (0 == ::strncasecmp(arg, "symbol", 6))  flag_bits |= LIBLLDB_LOG_SYMBOLS;
+            else if (0 == ::strcasecmp(arg, "system-runtime"))  flag_bits |= LIBLLDB_LOG_SYSTEM_RUNTIME;
             else if (0 == ::strcasecmp(arg, "target"))      flag_bits |= LIBLLDB_LOG_TARGET;
             else if (0 == ::strncasecmp(arg, "temp", 4))    flag_bits |= LIBLLDB_LOG_TEMPORARY;
             else if (0 == ::strcasecmp(arg, "thread"))      flag_bits |= LIBLLDB_LOG_THREAD;
@@ -256,6 +261,7 @@ lldb_private::ListLogCategories (Stream *strm)
                  "  state - log private and public process state changes\n"
                  "  step - log step related activities\n"
                  "  symbol - log symbol related issues and warnings\n"
+                 "  system-runtime - log system runtime events\n"
                  "  target - log target events and activities\n"
                  "  thread - log thread events and activities\n"
                  "  types - log type system related activities\n"