feedc0de/boost_core
1
0
Fork 0
forked from boostorg/core
Code Pull Requests Activity

Only declare __cxa_get_globals on MinGW gcc < 4.7, where it's needed.

Browse Source 
This should work around differences between the function signatures on other
platforms, like FreeBSD, for example.
This commit is contained in:
Andrey Semashev
2019-01-06 21:29:15 +03:00
parent 245297ab85
commit 6f3e6254e7
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
include/boost/core/uncaught_exceptions.hpp
View File

@ -47,15 +47,15 @@
// MinGW GCC 4.4 seem to not work the same way the newer GCC versions do. As a result, __cxa_get_globals based implementation will always return 0.
// Just disable it for now and fall back to std::uncaught_exception().
#if !defined(__MINGW32__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)))
#define BOOST_CORE_HAS_CXA_GET_GLOBALS
#include <cxxabi.h>
// Only GCC 4.7 declares __cxa_get_globals() in cxxabi.h, older compilers do not expose this function but it's there
#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) < 407
#define BOOST_CORE_HAS_CXA_GET_GLOBALS
// Only MinGW GCC 4.7 declares __cxa_get_globals() in cxxabi.h, older compilers do not expose this function but it's there
#if defined(__MINGW32__) && defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) < 407
namespace __cxxabiv1 {
struct __cxa_eh_globals;
extern "C" __cxa_eh_globals* __cxa_get_globals() BOOST_NOEXCEPT_OR_NOTHROW __attribute__((__const__));
} // namespace __cxxabiv1
#endif // defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) < 407
#endif // defined(__MINGW32__) && defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) < 407
#endif
#endif // defined(BOOST_CORE_HAS_CXXABI_H)