1 //===-------------------- test_exception_storage.cpp ----------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "../src/config.h" 11 12 #include <cstdlib> 13 #include <algorithm> 14 #include <iostream> 15 #include <__threading_support> 16 #include <unistd.h> 17 18 #include "../src/cxa_exception.hpp" 19 20 typedef __cxxabiv1::__cxa_eh_globals globals_t ; 21 22 void *thread_code (void *parm) { 23 size_t *result = (size_t *) parm; 24 globals_t *glob1, *glob2; 25 26 glob1 = __cxxabiv1::__cxa_get_globals (); 27 if ( NULL == glob1 ) 28 std::cerr << "Got null result from __cxa_get_globals" << std::endl; 29 30 glob2 = __cxxabiv1::__cxa_get_globals_fast (); 31 if ( glob1 != glob2 ) 32 std::cerr << "Got different globals!" << std::endl; 33 34 *result = (size_t) glob1; 35 sleep ( 1 ); 36 return parm; 37 } 38 39 #ifndef _LIBCXXABI_HAS_NO_THREADS 40 #define NUMTHREADS 10 41 size_t thread_globals [ NUMTHREADS ] = { 0 }; 42 std::__libcpp_thread_t threads [ NUMTHREADS ]; 43 #endif 44 45 int main () { 46 int retVal = 0; 47 48 #ifndef _LIBCXXABI_HAS_NO_THREADS 49 // Make the threads, let them run, and wait for them to finish 50 for ( int i = 0; i < NUMTHREADS; ++i ) 51 std::__libcpp_thread_create ( threads + i, thread_code, (void *) (thread_globals + i)); 52 for ( int i = 0; i < NUMTHREADS; ++i ) 53 std::__libcpp_thread_join ( &threads [ i ] ); 54 55 for ( int i = 0; i < NUMTHREADS; ++i ) 56 if ( 0 == thread_globals [ i ] ) { 57 std::cerr << "Thread #" << i << " had a zero global" << std::endl; 58 retVal = 1; 59 } 60 61 std::sort ( thread_globals, thread_globals + NUMTHREADS ); 62 for ( int i = 1; i < NUMTHREADS; ++i ) 63 if ( thread_globals [ i - 1 ] == thread_globals [ i ] ) { 64 std::cerr << "Duplicate thread globals (" << i-1 << " and " << i << ")" << std::endl; 65 retVal = 2; 66 } 67 #else // _LIBCXXABI_HAS_NO_THREADS 68 size_t thread_globals; 69 // Check that __cxa_get_globals() is not NULL. 70 if (thread_code(&thread_globals) == 0) { 71 retVal = 1; 72 } 73 #endif // !_LIBCXXABI_HAS_NO_THREADS 74 return retVal; 75 } 76
