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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <__threading_support>
#include <unistd.h>
#include "../src/cxa_exception.h"
#include "test_macros.h"
typedef __cxxabiv1::__cxa_eh_globals globals_t ;
void *thread_code (void *parm) {
size_t *result = (size_t *) parm;
globals_t *glob1, *glob2;
glob1 = __cxxabiv1::__cxa_get_globals ();
if ( NULL == glob1 )
std::printf("Got null result from __cxa_get_globals\n");
glob2 = __cxxabiv1::__cxa_get_globals_fast ();
if ( glob1 != glob2 )
std::printf("Got different globals!\n");
*result = (size_t) glob1;
#ifndef TEST_HAS_NO_THREADS
sleep ( 1 );
#endif
return parm;
}
#ifndef TEST_HAS_NO_THREADS
#define NUMTHREADS 10
size_t thread_globals [ NUMTHREADS ] = { 0 };
std::__libcpp_thread_t threads [ NUMTHREADS ];
#endif
int main() {
#ifndef TEST_HAS_NO_THREADS
// Make the threads, let them run, and wait for them to finish
for ( int i = 0; i < NUMTHREADS; ++i )
std::__libcpp_thread_create ( threads + i, thread_code, (void *) (thread_globals + i));
for ( int i = 0; i < NUMTHREADS; ++i )
std::__libcpp_thread_join ( &threads [ i ] );
int retVal = 0;
for ( int i = 0; i < NUMTHREADS; ++i ) {
if ( 0 == thread_globals [ i ] ) {
std::printf("Thread #%d had a zero global\n", i);
retVal = 1;
}
}
std::sort ( thread_globals, thread_globals + NUMTHREADS );
for ( int i = 1; i < NUMTHREADS; ++i ) {
if ( thread_globals [ i - 1 ] == thread_globals [ i ] ) {
std::printf("Duplicate thread globals (%d and %d)\n", i-1, i);
retVal = 2;
}
}
return retVal;
#else // TEST_HAS_NO_THREADS
size_t thread_globals;
thread_code(&thread_globals);
// Check that __cxa_get_globals() is not NULL.
return (thread_globals == 0) ? 1 : 0;
#endif // !TEST_HAS_NO_THREADS
}
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