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Delete fexit_noreturns.c files and migrate the cases into tracing_failure.c files. The result: $ tools/testing/selftests/bpf/test_progs -t tracing_failure/fexit_noreturns #467/4 tracing_failure/fexit_noreturns:OK #467 tracing_failure:OK Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: KaFai Wan <kafai.wan@linux.dev> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20250724151454.499040-5-kafai.wan@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
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#include <test_progs.h>
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#include "tracing_failure.skel.h"
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static void test_bpf_spin_lock(bool is_spin_lock)
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{
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struct tracing_failure *skel;
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int err;
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skel = tracing_failure__open();
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if (!ASSERT_OK_PTR(skel, "tracing_failure__open"))
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return;
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if (is_spin_lock)
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bpf_program__set_autoload(skel->progs.test_spin_lock, true);
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else
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bpf_program__set_autoload(skel->progs.test_spin_unlock, true);
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err = tracing_failure__load(skel);
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if (!ASSERT_OK(err, "tracing_failure__load"))
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goto out;
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err = tracing_failure__attach(skel);
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ASSERT_ERR(err, "tracing_failure__attach");
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out:
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tracing_failure__destroy(skel);
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}
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static void test_tracing_fail_prog(const char *prog_name, const char *exp_msg)
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{
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struct tracing_failure *skel;
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struct bpf_program *prog;
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char log_buf[256];
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int err;
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skel = tracing_failure__open();
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if (!ASSERT_OK_PTR(skel, "tracing_failure__open"))
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return;
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prog = bpf_object__find_program_by_name(skel->obj, prog_name);
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if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
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goto out;
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bpf_program__set_autoload(prog, true);
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bpf_program__set_log_buf(prog, log_buf, sizeof(log_buf));
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err = tracing_failure__load(skel);
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if (!ASSERT_ERR(err, "tracing_failure__load"))
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goto out;
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ASSERT_HAS_SUBSTR(log_buf, exp_msg, "log_buf");
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out:
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tracing_failure__destroy(skel);
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}
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static void test_tracing_deny(void)
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{
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int btf_id;
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/* __rcu_read_lock depends on CONFIG_PREEMPT_RCU */
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btf_id = libbpf_find_vmlinux_btf_id("__rcu_read_lock", BPF_TRACE_FENTRY);
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if (btf_id <= 0) {
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test__skip();
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return;
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}
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test_tracing_fail_prog("tracing_deny",
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"Attaching tracing programs to function '__rcu_read_lock' is rejected.");
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}
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static void test_fexit_noreturns(void)
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{
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test_tracing_fail_prog("fexit_noreturns",
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"Attaching fexit/fmod_ret to __noreturn function 'do_exit' is rejected.");
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}
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void test_tracing_failure(void)
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{
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if (test__start_subtest("bpf_spin_lock"))
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test_bpf_spin_lock(true);
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if (test__start_subtest("bpf_spin_unlock"))
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test_bpf_spin_lock(false);
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if (test__start_subtest("tracing_deny"))
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test_tracing_deny();
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if (test__start_subtest("fexit_noreturns"))
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test_fexit_noreturns();
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}
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