cdfd9cc3ba
Replace CHECK with ASSERT macros for ksyms tests. This test failed earlier with clang lto kernel, but the issue is gone with latest code base. But replacing CHECK with ASSERT still improves code as ASSERT is preferred in selftests. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20240326041448.1197812-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2019 Facebook */
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#include <test_progs.h>
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#include "test_ksyms.skel.h"
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#include <sys/stat.h>
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void test_ksyms(void)
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{
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const char *btf_path = "/sys/kernel/btf/vmlinux";
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struct test_ksyms *skel;
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struct test_ksyms__data *data;
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__u64 link_fops_addr, per_cpu_start_addr;
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struct stat st;
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__u64 btf_size;
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int err;
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err = kallsyms_find("bpf_link_fops", &link_fops_addr);
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if (!ASSERT_NEQ(err, -EINVAL, "bpf_link_fops: kallsyms_fopen"))
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return;
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if (!ASSERT_NEQ(err, -ENOENT, "bpf_link_fops: ksym_find"))
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return;
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err = kallsyms_find("__per_cpu_start", &per_cpu_start_addr);
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if (!ASSERT_NEQ(err, -EINVAL, "__per_cpu_start: kallsyms_fopen"))
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return;
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if (!ASSERT_NEQ(err, -ENOENT, "__per_cpu_start: ksym_find"))
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return;
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if (!ASSERT_OK(stat(btf_path, &st), "stat_btf"))
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return;
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btf_size = st.st_size;
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skel = test_ksyms__open_and_load();
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if (!ASSERT_OK_PTR(skel, "test_ksyms__open_and_load"))
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return;
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err = test_ksyms__attach(skel);
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if (!ASSERT_OK(err, "test_ksyms__attach"))
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goto cleanup;
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/* trigger tracepoint */
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usleep(1);
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data = skel->data;
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ASSERT_EQ(data->out__bpf_link_fops, link_fops_addr, "bpf_link_fops");
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ASSERT_EQ(data->out__bpf_link_fops1, 0, "bpf_link_fops1");
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ASSERT_EQ(data->out__btf_size, btf_size, "btf_size");
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ASSERT_EQ(data->out__per_cpu_start, per_cpu_start_addr, "__per_cpu_start");
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cleanup:
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test_ksyms__destroy(skel);
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}
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