| 1 | // -*- C++ -*- |
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| 2 | //===----------------------------------------------------------------------===// |
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| 3 | // |
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| 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 5 | // See https://llvm.org/LICENSE.txt for license information. |
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| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 7 | // |
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| 8 | //===----------------------------------------------------------------------===// |
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| 9 | |
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| 10 | // REQUIRES: linux && target=aarch64-{{.+}}-gnu |
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| 11 | |
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| 12 | // pthread_cancel in case of glibc calls _Unwind_ForcedUnwind from a signal on |
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| 13 | // the child_thread. This test ensures sigreturn is handled correctly (see: |
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| 14 | // UnwindCursor<A, R>::setInfoForSigReturn). |
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| 15 | |
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| 16 | #include <cstdlib> // defines __BIONIC__ |
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| 17 | |
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| 18 | // Android/Bionic does not support pthread_cancel. |
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| 19 | #ifdef __BIONIC__ |
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| 20 | int main() { |
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| 21 | return 0; |
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| 22 | } |
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| 23 | #else |
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| 24 | |
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| 25 | #include <chrono> |
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| 26 | #include <condition_variable> |
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| 27 | #include <pthread.h> |
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| 28 | #include <unistd.h> |
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| 29 | |
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| 30 | using namespace std::chrono_literals; |
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| 31 | |
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| 32 | std::condition_variable cv; |
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| 33 | std::mutex cv_m; |
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| 34 | bool thread_ready = false; |
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| 35 | |
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| 36 | static void* test(void* arg) { |
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| 37 | (void)arg; |
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| 38 | thread_ready = true; |
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| 39 | cv.notify_all(); |
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| 40 | |
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| 41 | // This must be a pthread cancellation point. |
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| 42 | while (1) |
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| 43 | sleep(seconds: 100); |
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| 44 | |
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| 45 | return (void*)1; |
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| 46 | } |
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| 47 | |
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| 48 | int main() { |
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| 49 | pthread_t child_thread; |
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| 50 | std::unique_lock<std::mutex> lk(cv_m); |
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| 51 | pthread_create(newthread: &child_thread, attr: 0, start_routine: test, arg: (void*)0); |
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| 52 | |
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| 53 | if (!cv.wait_for(lock&: lk, rtime: 100ms, p: [] { return thread_ready; })) |
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| 54 | return -1; |
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| 55 | |
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| 56 | pthread_cancel(th: child_thread); |
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| 57 | pthread_join(th: child_thread, NULL); |
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| 58 | return 0; |
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| 59 | } |
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| 60 | #endif |
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| 61 | |
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