From d8f28ec8a2faabad3aabb9f7a26755971424ef05 Mon Sep 17 00:00:00 2001
From: theraven <theraven@FreeBSD.org>
Date: Tue, 22 Nov 2011 17:30:41 +0000
Subject: Import libcxxrt / libc++ into a vendor branch.

Approved by:	dim (mentor)
---
 src/new.cpp | 185 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 185 insertions(+)
 create mode 100644 src/new.cpp

(limited to 'src/new.cpp')

diff --git a/src/new.cpp b/src/new.cpp
new file mode 100644
index 0000000..1e8ed88
--- /dev/null
+++ b/src/new.cpp
@@ -0,0 +1,185 @@
+//===--------------------------- new.cpp ----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdlib.h>
+
+#include "new"
+
+#if __APPLE__
+    #include <cxxabi.h>
+    // On Darwin, there are two STL shared libraries and a lower level ABI
+    // shared libray.  The global holding the current new handler is
+    // in the ABI library and named __cxa_new_handler.
+    #define __new_handler __cxxabiapple::__cxa_new_handler
+#else  // __APPLE__
+    static std::new_handler __new_handler;
+#endif
+
+// Implement all new and delete operators as weak definitions
+// in this shared library, so that they can be overriden by programs
+// that define non-weak copies of the functions.
+
+__attribute__((__weak__, __visibility__("default")))
+void *
+operator new(std::size_t size)
+#if !__has_feature(cxx_noexcept)
+    throw(std::bad_alloc)
+#endif
+{
+    if (size == 0)
+        size = 1;
+    void* p;
+    while ((p = ::malloc(size)) == 0)
+    {
+        // If malloc fails and there is a new_handler,
+        // call it to try free up memory.
+        std::new_handler nh = std::get_new_handler();
+        if (nh)
+            nh();
+        else
+#ifndef _LIBCPP_NO_EXCEPTIONS
+            throw std::bad_alloc();
+#else
+            break;
+#endif
+    }
+    return p;
+}
+
+__attribute__((__weak__, __visibility__("default")))
+void*
+operator new(size_t size, const std::nothrow_t&) _NOEXCEPT
+{
+    void* p = 0;
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    try
+    {
+#endif  // _LIBCPP_NO_EXCEPTIONS
+        p = ::operator new(size);
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    }
+    catch (...)
+    {
+    }
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    return p;
+}
+
+__attribute__((__weak__, __visibility__("default")))
+void*
+operator new[](size_t size)
+#if !__has_feature(cxx_noexcept)
+    throw(std::bad_alloc)
+#endif
+{
+    return ::operator new(size);
+}
+
+__attribute__((__weak__, __visibility__("default")))
+void*
+operator new[](size_t size, const std::nothrow_t& nothrow) _NOEXCEPT
+{
+    void* p = 0;
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    try
+    {
+#endif  // _LIBCPP_NO_EXCEPTIONS
+        p = ::operator new[](size);
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    }
+    catch (...)
+    {
+    }
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    return p;
+}
+
+__attribute__((__weak__, __visibility__("default")))
+void
+operator delete(void* ptr) _NOEXCEPT
+{
+    if (ptr)
+        ::free(ptr);
+}
+
+__attribute__((__weak__, __visibility__("default")))
+void
+operator delete(void* ptr, const std::nothrow_t&) _NOEXCEPT
+{
+    ::operator delete(ptr);
+}
+
+__attribute__((__weak__, __visibility__("default")))
+void
+operator delete[] (void* ptr) _NOEXCEPT
+{
+    ::operator delete (ptr);
+}
+
+__attribute__((__weak__, __visibility__("default")))
+void
+operator delete[] (void* ptr, const std::nothrow_t&) _NOEXCEPT
+{
+    ::operator delete[](ptr);
+}
+
+namespace std
+{
+
+const nothrow_t nothrow = {};
+
+new_handler
+set_new_handler(new_handler handler) _NOEXCEPT
+{
+    return __sync_lock_test_and_set(&__new_handler, handler);
+}
+
+new_handler
+get_new_handler() _NOEXCEPT
+{
+    return __sync_fetch_and_add(&__new_handler, (new_handler)0);
+}
+
+bad_alloc::bad_alloc() _NOEXCEPT
+{
+}
+
+bad_alloc::~bad_alloc() _NOEXCEPT
+{
+}
+
+const char*
+bad_alloc::what() const _NOEXCEPT
+{
+    return "std::bad_alloc";
+}
+
+bad_array_new_length::bad_array_new_length() _NOEXCEPT
+{
+}
+
+bad_array_new_length::~bad_array_new_length() _NOEXCEPT
+{
+}
+
+const char*
+bad_array_new_length::what() const _NOEXCEPT
+{
+    return "bad_array_new_length";
+}
+
+void
+__throw_bad_alloc()
+{
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    throw bad_alloc();
+#endif
+}
+
+}  // std
-- 
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