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77054f3946
https://reviews.llvm.org/D138460 touches that test a bunch, so we might as well clang-format it first.
77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include <algorithm>
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#include <cstdio>
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#include <cstdlib>
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#include <__threading_support>
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#include <unistd.h>
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#include "../src/cxa_exception.h"
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#include "test_macros.h"
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typedef __cxxabiv1::__cxa_eh_globals globals_t;
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void* thread_code(void* parm) {
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size_t* result = (size_t*)parm;
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globals_t *glob1, *glob2;
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glob1 = __cxxabiv1::__cxa_get_globals();
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if (NULL == glob1)
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std::printf("Got null result from __cxa_get_globals\n");
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glob2 = __cxxabiv1::__cxa_get_globals_fast();
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if (glob1 != glob2)
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std::printf("Got different globals!\n");
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*result = (size_t)glob1;
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#ifndef TEST_HAS_NO_THREADS
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sleep(1);
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#endif
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return parm;
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}
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#ifndef TEST_HAS_NO_THREADS
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# define NUMTHREADS 10
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size_t thread_globals[NUMTHREADS] = {0};
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std::__libcpp_thread_t threads[NUMTHREADS];
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#endif
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int main() {
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#ifndef TEST_HAS_NO_THREADS
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// Make the threads, let them run, and wait for them to finish
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for (int i = 0; i < NUMTHREADS; ++i)
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std::__libcpp_thread_create(threads + i, thread_code, (void*)(thread_globals + i));
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for (int i = 0; i < NUMTHREADS; ++i)
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std::__libcpp_thread_join(&threads[i]);
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int retVal = 0;
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for (int i = 0; i < NUMTHREADS; ++i) {
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if (0 == thread_globals[i]) {
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std::printf("Thread #%d had a zero global\n", i);
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retVal = 1;
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}
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}
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std::sort(thread_globals, thread_globals + NUMTHREADS);
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for (int i = 1; i < NUMTHREADS; ++i) {
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if (thread_globals[i - 1] == thread_globals[i]) {
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std::printf("Duplicate thread globals (%d and %d)\n", i - 1, i);
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retVal = 2;
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}
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}
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return retVal;
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#else // TEST_HAS_NO_THREADS
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size_t thread_globals;
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thread_code(&thread_globals);
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// Check that __cxa_get_globals() is not NULL.
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return (thread_globals == 0) ? 1 : 0;
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#endif // !TEST_HAS_NO_THREADS
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}
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