4f80c064eb
In the libc++ test suite, we consistently declare main() functions with full parameters and explicitly return from the function. This helps code that compiles the tests with -ffreestanding, where main() is not a special function (with an implicit return and special mangling). This patch fixes a few stray declarations, including in libunwind and libc++abi.
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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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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// REQUIRES: linux && target=aarch64-{{.+}}-gnu
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// pthread_cancel in case of glibc calls _Unwind_ForcedUnwind from a signal on
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// the child_thread. This test ensures sigreturn is handled correctly (see:
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// UnwindCursor<A, R>::setInfoForSigReturn).
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#include <cstdlib> // defines __BIONIC__
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// Android/Bionic does not support pthread_cancel.
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#ifdef __BIONIC__
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int main(int, char**) { return 0; }
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#else
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#include <chrono>
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#include <condition_variable>
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#include <pthread.h>
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#include <unistd.h>
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using namespace std::chrono_literals;
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std::condition_variable cv;
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std::mutex cv_m;
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bool thread_ready = false;
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static void* test(void* arg) {
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(void)arg;
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thread_ready = true;
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cv.notify_all();
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// This must be a pthread cancellation point.
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while (1)
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sleep(100);
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return (void*)1;
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}
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int main(int, char**) {
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pthread_t child_thread;
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std::unique_lock<std::mutex> lk(cv_m);
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pthread_create(&child_thread, 0, test, (void*)0);
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if (!cv.wait_for(lk, 100ms, [] { return thread_ready; }))
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return -1;
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pthread_cancel(child_thread);
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pthread_join(child_thread, NULL);
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return 0;
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}
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#endif
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