Update LLDB snapshot to upstream r225923 (git 2b588ecd)

Sponsored by:	DARPA, AFRL

1 files changed, 74 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Host/common/ThreadLauncher.cpp b/contrib/llvm/tools/lldb/source/Host/common/ThreadLauncher.cpp
new file mode 100644
index 0000000..ec7da32
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Host/common/ThreadLauncher.cpp
@@ -0,0 +1,74 @@
+//===-- ThreadLauncher.cpp ---------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// lldb Includes
+#include "lldb/Core/Log.h"
+#include "lldb/Host/HostNativeThread.h"
+#include "lldb/Host/HostThread.h"
+#include "lldb/Host/ThisThread.h"
+#include "lldb/Host/ThreadLauncher.h"
+
+#if defined(_WIN32)
+#include "lldb/Host/windows/windows.h"
+#endif
+
+using namespace lldb;
+using namespace lldb_private;
+
+HostThread
+ThreadLauncher::LaunchThread(llvm::StringRef name, lldb::thread_func_t thread_function, lldb::thread_arg_t thread_arg, Error *error_ptr, size_t min_stack_byte_size)
+{
+    Error error;
+    if (error_ptr)
+        error_ptr->Clear();
+
+    // Host::ThreadCreateTrampoline will delete this pointer for us.
+    HostThreadCreateInfo *info_ptr = new HostThreadCreateInfo(name.data(), thread_function, thread_arg);
+    lldb::thread_t thread;
+#ifdef _WIN32
+    thread =
+        (lldb::thread_t)::_beginthreadex(0, (unsigned)min_stack_byte_size, HostNativeThread::ThreadCreateTrampoline, info_ptr, 0, NULL);
+    if (thread == (lldb::thread_t)(-1L))
+        error.SetError(::GetLastError(), eErrorTypeWin32);
+#else
+
+    pthread_attr_t *thread_attr_ptr = NULL;
+    pthread_attr_t thread_attr;
+    bool destroy_attr = false;
+    if (min_stack_byte_size > 0)
+    {
+        if (::pthread_attr_init (&thread_attr) == 0)
+        {
+            destroy_attr = true;
+            size_t default_min_stack_byte_size = 0;
+            if (::pthread_attr_getstacksize(&thread_attr, &default_min_stack_byte_size) == 0)
+            {
+                if (default_min_stack_byte_size < min_stack_byte_size)
+                {
+                    if (::pthread_attr_setstacksize (&thread_attr, min_stack_byte_size) == 0)
+                        thread_attr_ptr = &thread_attr;
+                }
+            }
+
+        }
+    }
+    int err = ::pthread_create(&thread, thread_attr_ptr, HostNativeThread::ThreadCreateTrampoline, info_ptr);
+
+    if (destroy_attr)
+        ::pthread_attr_destroy(&thread_attr);
+
+    error.SetError(err, eErrorTypePOSIX);
+#endif
+    if (error_ptr)
+        *error_ptr = error;
+    if (!error.Success())
+        thread = LLDB_INVALID_HOST_THREAD;
+
+    return HostThread(thread);
+}