Update LLDB snapshot to upstream r201577

Highlights include:

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

- 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)

- 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, 19 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Target/SectionLoadList.cpp b/contrib/llvm/tools/lldb/source/Target/SectionLoadList.cpp
index 96713c6..82f52f9 100644
--- a/contrib/llvm/tools/lldb/source/Target/SectionLoadList.cpp
+++ b/contrib/llvm/tools/lldb/source/Target/SectionLoadList.cpp
@@ -25,6 +25,25 @@ using namespace lldb;
 using namespace lldb_private;
 
 
+SectionLoadList::SectionLoadList (const SectionLoadList& rhs) :
+    m_addr_to_sect(),
+    m_sect_to_addr(),
+    m_mutex (Mutex::eMutexTypeRecursive)
+{
+    Mutex::Locker locker(rhs.m_mutex);
+    m_addr_to_sect = rhs.m_addr_to_sect;
+    m_sect_to_addr = rhs.m_sect_to_addr;
+}
+
+void
+SectionLoadList::operator=(const SectionLoadList &rhs)
+{
+    Mutex::Locker lhs_locker (m_mutex);
+    Mutex::Locker rhs_locker (rhs.m_mutex);
+    m_addr_to_sect = rhs.m_addr_to_sect;
+    m_sect_to_addr = rhs.m_sect_to_addr;
+}
+
 bool
 SectionLoadList::IsEmpty() const
 {