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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=iii@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1731077639347116600 Content-Type: text/plain; charset="utf-8" Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich --- tests/tcg/multiarch/Makefile.target | 3 ++ tests/tcg/multiarch/sigreturn-sigmask.c | 51 +++++++++++++++++++++++++ 2 files changed, 54 insertions(+) create mode 100644 tests/tcg/multiarch/sigreturn-sigmask.c diff --git a/tests/tcg/multiarch/Makefile.target b/tests/tcg/multiarch/Make= file.target index 78b83d5575a..18d3cf4ae00 100644 --- a/tests/tcg/multiarch/Makefile.target +++ b/tests/tcg/multiarch/Makefile.target @@ -42,6 +42,9 @@ munmap-pthread: LDFLAGS+=3D-pthread vma-pthread: CFLAGS+=3D-pthread vma-pthread: LDFLAGS+=3D-pthread =20 +sigreturn-sigmask: CFLAGS+=3D-pthread +sigreturn-sigmask: LDFLAGS+=3D-pthread + # The vma-pthread seems very sensitive on gitlab and we currently # don't know if its exposing a real bug or the test is flaky. ifneq ($(GITLAB_CI),) diff --git a/tests/tcg/multiarch/sigreturn-sigmask.c b/tests/tcg/multiarch/= sigreturn-sigmask.c new file mode 100644 index 00000000000..e6cc904898d --- /dev/null +++ b/tests/tcg/multiarch/sigreturn-sigmask.c @@ -0,0 +1,51 @@ +/* + * Test that sigreturn() does not corrupt the signal mask. + * Block SIGUSR2 and handle SIGUSR1. + * Then sigwait() SIGUSR2, which relies on it remaining blocked. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include +#include +#include + +int seen_sig =3D -1; + +static void signal_func(int sig) +{ + seen_sig =3D sig; +} + +static void *thread_func(void *arg) +{ + kill(getpid(), SIGUSR2); + return NULL; +} + +int main(void) +{ + struct sigaction act =3D { + .sa_handler =3D signal_func, + }; + pthread_t thread; + sigset_t set; + int sig; + + assert(sigaction(SIGUSR1, &act, NULL) =3D=3D 0); + + assert(sigemptyset(&set) =3D=3D 0); + assert(sigaddset(&set, SIGUSR2) =3D=3D 0); + assert(sigprocmask(SIG_BLOCK, &set, NULL) =3D=3D 0); + + kill(getpid(), SIGUSR1); + assert(seen_sig =3D=3D SIGUSR1); + + assert(pthread_create(&thread, NULL, thread_func, NULL) =3D=3D 0); + assert(sigwait(&set, &sig) =3D=3D 0); + assert(sig =3D=3D SIGUSR2); + assert(pthread_join(thread, NULL) =3D=3D 0); + + return EXIT_SUCCESS; +} --=20 2.47.0