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Mon, 17 Mar 2025 05:18:08 -0700 (PDT) Received: from localhost.localdomain ([61.173.25.243]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-225c6bbe7c1sm73445555ad.187.2025.03.17.05.18.00 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 17 Mar 2025 05:18:08 -0700 (PDT) From: Yafang Shao To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, jpoimboe@kernel.org, peterz@infradead.org Cc: bpf@vger.kernel.org, Yafang Shao Subject: [PATCH bpf-next v4] selftests/bpf: Add selftest for attaching fexit to __noreturn functions Date: Mon, 17 Mar 2025 20:17:35 +0800 Message-Id: <20250317121735.86515-3-laoar.shao@gmail.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20250317121735.86515-1-laoar.shao@gmail.com> References: <20250317121735.86515-1-laoar.shao@gmail.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net The reuslt: $ tools/testing/selftests/bpf/test_progs --name=fexit_noreturns #99/1 fexit_noreturns/noreturns:OK #99 fexit_noreturns:OK Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Yafang Shao --- .../selftests/bpf/prog_tests/fexit_noreturns.c | 9 +++++++++ .../testing/selftests/bpf/progs/fexit_noreturns.c | 15 +++++++++++++++ 2 files changed, 24 insertions(+) create mode 100644 tools/testing/selftests/bpf/prog_tests/fexit_noreturns.c create mode 100644 tools/testing/selftests/bpf/progs/fexit_noreturns.c diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_noreturns.c b/tools/testing/selftests/bpf/prog_tests/fexit_noreturns.c new file mode 100644 index 000000000000..568d3aa48a78 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/fexit_noreturns.c @@ -0,0 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include "fexit_noreturns.skel.h" + +void test_fexit_noreturns(void) +{ + RUN_TESTS(fexit_noreturns); +} diff --git a/tools/testing/selftests/bpf/progs/fexit_noreturns.c b/tools/testing/selftests/bpf/progs/fexit_noreturns.c new file mode 100644 index 000000000000..54654539f550 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/fexit_noreturns.c @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include +#include "bpf_misc.h" + +char _license[] SEC("license") = "GPL"; + +SEC("fexit/do_exit") +__failure __msg("Attaching fexit/fmod_ret to __noreturn functions is rejected.") +int BPF_PROG(noreturns) +{ + return 0; +}