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 #if !LIBCXXABI_HAS_NO_THREADS 16 # include <pthread.h> 17 #endif 18 #include <unistd.h> 19 20 #include "../src/cxa_exception.hpp" 21 22 typedef __cxxabiv1::__cxa_eh_globals globals_t ; 23 24 void *thread_code (void *parm) { 25 size_t *result = (size_t *) parm; 26 globals_t *glob1, *glob2; 27 28 glob1 = __cxxabiv1::__cxa_get_globals (); 29 if ( NULL == glob1 ) 30 std::cerr << "Got null result from __cxa_get_globals" << std::endl; 31 32 glob2 = __cxxabiv1::__cxa_get_globals_fast (); 33 if ( glob1 != glob2 ) 34 std::cerr << "Got different globals!" << std::endl; 35 36 *result = (size_t) glob1; 37 sleep ( 1 ); 38 return parm; 39 } 40 41 #if !LIBCXXABI_HAS_NO_THREADS 42 #define NUMTHREADS 10 43 size_t thread_globals [ NUMTHREADS ] = { 0 }; 44 pthread_t threads [ NUMTHREADS ]; 45 #endif 46 47 void print_sizes ( size_t *first, size_t *last ) { 48 std::cout << "{ " << std::hex; 49 for ( size_t *iter = first; iter != last; ++iter ) 50 std::cout << *iter << " "; 51 std::cout << "}" << std::dec << std::endl; 52 } 53 54 int main ( int argc, char *argv [] ) { 55 int retVal = 0; 56 57 #if LIBCXXABI_HAS_NO_THREADS 58 size_t thread_globals; 59 // Check that __cxa_get_globals() is not NULL. 60 if (thread_code(&thread_globals) == 0) { 61 retVal = 1; 62 } 63 #else 64 // Make the threads, let them run, and wait for them to finish 65 for ( int i = 0; i < NUMTHREADS; ++i ) 66 pthread_create( threads + i, NULL, thread_code, (void *) (thread_globals + i)); 67 for ( int i = 0; i < NUMTHREADS; ++i ) 68 pthread_join ( threads [ i ], NULL ); 69 70 for ( int i = 0; i < NUMTHREADS; ++i ) 71 if ( 0 == thread_globals [ i ] ) { 72 std::cerr << "Thread #" << i << " had a zero global" << std::endl; 73 retVal = 1; 74 } 75 76 // print_sizes ( thread_globals, thread_globals + NUMTHREADS ); 77 std::sort ( thread_globals, thread_globals + NUMTHREADS ); 78 for ( int i = 1; i < NUMTHREADS; ++i ) 79 if ( thread_globals [ i - 1 ] == thread_globals [ i ] ) { 80 std::cerr << "Duplicate thread globals (" << i-1 << " and " << i << ")" << std::endl; 81 retVal = 2; 82 } 83 // print_sizes ( thread_globals, thread_globals + NUMTHREADS ); 84 85 #endif 86 return retVal; 87 } 88
