svn commit: r299144 - head/contrib/libcxxrt
Dimitry Andric
dim at FreeBSD.org
Thu May 5 22:40:09 UTC 2016
Author: dim
Date: Thu May 5 22:40:07 2016
New Revision: 299144
URL: https://svnweb.freebsd.org/changeset/base/299144
Log:
Import libcxxrt master 516a65c109eb0a01e5e95fbef455eb3215135cef.
Interesting fixes:
3adaa2e Fix _Unwind_Exception cleanup functions
286776c Check exception cleanup function ptr before calling
edda626 Correct exception specifications on new and delete operators
Modified:
head/contrib/libcxxrt/exception.cc
head/contrib/libcxxrt/memory.cc
Directory Properties:
head/contrib/libcxxrt/ (props changed)
Modified: head/contrib/libcxxrt/exception.cc
==============================================================================
--- head/contrib/libcxxrt/exception.cc Thu May 5 22:30:00 2016 (r299143)
+++ head/contrib/libcxxrt/exception.cc Thu May 5 22:40:07 2016 (r299144)
@@ -304,13 +304,17 @@ static pthread_key_t eh_key;
static void exception_cleanup(_Unwind_Reason_Code reason,
struct _Unwind_Exception *ex)
{
- __cxa_free_exception(static_cast<void*>(ex));
+ // Exception layout:
+ // [__cxa_exception [_Unwind_Exception]] [exception object]
+ //
+ // __cxa_free_exception expects a pointer to the exception object
+ __cxa_free_exception(static_cast<void*>(ex + 1));
}
static void dependent_exception_cleanup(_Unwind_Reason_Code reason,
struct _Unwind_Exception *ex)
{
- __cxa_free_dependent_exception(static_cast<void*>(ex));
+ __cxa_free_dependent_exception(static_cast<void*>(ex + 1));
}
/**
@@ -340,7 +344,8 @@ static void thread_cleanup(void* thread_
if (info->foreign_exception_state != __cxa_thread_info::none)
{
_Unwind_Exception *e = reinterpret_cast<_Unwind_Exception*>(info->globals.caughtExceptions);
- e->exception_cleanup(_URC_FOREIGN_EXCEPTION_CAUGHT, e);
+ if (e->exception_cleanup)
+ e->exception_cleanup(_URC_FOREIGN_EXCEPTION_CAUGHT, e);
}
else
{
@@ -1282,12 +1287,13 @@ extern "C" void __cxa_end_catch()
if (ti->foreign_exception_state != __cxa_thread_info::none)
{
- globals->caughtExceptions = 0;
if (ti->foreign_exception_state != __cxa_thread_info::rethrown)
{
_Unwind_Exception *e = reinterpret_cast<_Unwind_Exception*>(ti->globals.caughtExceptions);
- e->exception_cleanup(_URC_FOREIGN_EXCEPTION_CAUGHT, e);
+ if (e->exception_cleanup)
+ e->exception_cleanup(_URC_FOREIGN_EXCEPTION_CAUGHT, e);
}
+ globals->caughtExceptions = 0;
ti->foreign_exception_state = __cxa_thread_info::none;
return;
}
Modified: head/contrib/libcxxrt/memory.cc
==============================================================================
--- head/contrib/libcxxrt/memory.cc Thu May 5 22:30:00 2016 (r299143)
+++ head/contrib/libcxxrt/memory.cc Thu May 5 22:40:07 2016 (r299144)
@@ -71,8 +71,17 @@ namespace std
}
+#if __cplusplus < 201103L
+#define NOEXCEPT throw()
+#define BADALLOC throw(std::bad_alloc)
+#else
+#define NOEXCEPT noexcept
+#define BADALLOC
+#endif
+
+
__attribute__((weak))
-void* operator new(size_t size)
+void* operator new(size_t size) BADALLOC
{
if (0 == size)
{
@@ -97,7 +106,7 @@ void* operator new(size_t size)
}
__attribute__((weak))
-void* operator new(size_t size, const std::nothrow_t &) throw()
+void* operator new(size_t size, const std::nothrow_t &) NOEXCEPT
{
try {
return :: operator new(size);
@@ -110,27 +119,21 @@ void* operator new(size_t size, const st
__attribute__((weak))
-void operator delete(void * ptr)
-#if __cplusplus < 201000L
-throw()
-#endif
+void operator delete(void * ptr) NOEXCEPT
{
free(ptr);
}
__attribute__((weak))
-void * operator new[](size_t size)
-#if __cplusplus < 201000L
-throw(std::bad_alloc)
-#endif
+void * operator new[](size_t size) BADALLOC
{
return ::operator new(size);
}
__attribute__((weak))
-void * operator new[](size_t size, const std::nothrow_t &) throw()
+void * operator new[](size_t size, const std::nothrow_t &) NOEXCEPT
{
try {
return ::operator new[](size);
@@ -143,10 +146,7 @@ void * operator new[](size_t size, const
__attribute__((weak))
-void operator delete[](void * ptr)
-#if __cplusplus < 201000L
-throw()
-#endif
+void operator delete[](void * ptr) NOEXCEPT
{
::operator delete(ptr);
}
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