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-rw-r--r--lib/libcxxabi/src/cxa_exception_storage.cpp102
1 files changed, 0 insertions, 102 deletions
diff --git a/lib/libcxxabi/src/cxa_exception_storage.cpp b/lib/libcxxabi/src/cxa_exception_storage.cpp
deleted file mode 100644
index c641e0225f8..00000000000
--- a/lib/libcxxabi/src/cxa_exception_storage.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-//===--------------------- cxa_exception_storage.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.
-//
-//
-// This file implements the storage for the "Caught Exception Stack"
-// http://mentorembedded.github.io/cxx-abi/abi-eh.html (section 2.2.2)
-//
-//===----------------------------------------------------------------------===//
-
-#include "cxa_exception.hpp"
-
-#include <__threading_support>
-
-#if defined(_LIBCXXABI_HAS_NO_THREADS)
-
-namespace __cxxabiv1 {
-extern "C" {
- static __cxa_eh_globals eh_globals;
- __cxa_eh_globals *__cxa_get_globals() { return &eh_globals; }
- __cxa_eh_globals *__cxa_get_globals_fast() { return &eh_globals; }
- }
-}
-
-#elif defined(HAS_THREAD_LOCAL)
-
-namespace __cxxabiv1 {
-
-namespace {
- __cxa_eh_globals * __globals () {
- static thread_local __cxa_eh_globals eh_globals;
- return &eh_globals;
- }
- }
-
-extern "C" {
- __cxa_eh_globals * __cxa_get_globals () { return __globals (); }
- __cxa_eh_globals * __cxa_get_globals_fast () { return __globals (); }
- }
-}
-
-#else
-
-#include "abort_message.h"
-#include "fallback_malloc.h"
-
-// In general, we treat all threading errors as fatal.
-// We cannot call std::terminate() because that will in turn
-// call __cxa_get_globals() and cause infinite recursion.
-
-namespace __cxxabiv1 {
-namespace {
- std::__libcpp_tls_key key_;
- std::__libcpp_exec_once_flag flag_ = _LIBCPP_EXEC_ONCE_INITIALIZER;
-
- void _LIBCPP_TLS_DESTRUCTOR_CC destruct_ (void *p) {
- __free_with_fallback ( p );
- if ( 0 != std::__libcpp_tls_set ( key_, NULL ) )
- abort_message("cannot zero out thread value for __cxa_get_globals()");
- }
-
- void construct_ () {
- if ( 0 != std::__libcpp_tls_create ( &key_, destruct_ ) )
- abort_message("cannot create thread specific key for __cxa_get_globals()");
- }
-}
-
-extern "C" {
- __cxa_eh_globals * __cxa_get_globals () {
- // Try to get the globals for this thread
- __cxa_eh_globals* retVal = __cxa_get_globals_fast ();
-
- // If this is the first time we've been asked for these globals, create them
- if ( NULL == retVal ) {
- retVal = static_cast<__cxa_eh_globals*>
- (__calloc_with_fallback (1, sizeof (__cxa_eh_globals)));
- if ( NULL == retVal )
- abort_message("cannot allocate __cxa_eh_globals");
- if ( 0 != std::__libcpp_tls_set ( key_, retVal ) )
- abort_message("std::__libcpp_tls_set failure in __cxa_get_globals()");
- }
- return retVal;
- }
-
- // Note that this implementation will reliably return NULL if not
- // preceded by a call to __cxa_get_globals(). This is an extension
- // to the Itanium ABI and is taken advantage of in several places in
- // libc++abi.
- __cxa_eh_globals * __cxa_get_globals_fast () {
- // First time through, create the key.
- if (0 != std::__libcpp_execute_once(&flag_, construct_))
- abort_message("execute once failure in __cxa_get_globals_fast()");
-// static int init = construct_();
- return static_cast<__cxa_eh_globals*>(std::__libcpp_tls_get(key_));
- }
-
-}
-}
-#endif