c48e51c8b0
This adds selftests that tests the success and failure path for modules kfuncs (in presence of invalid kfunc calls) for both libbpf and gen_loader. It also adds a prog_test kfunc_btf_id_list so that we can add module BTF ID set from bpf_testmod. This also introduces a couple of test cases to verifier selftests for validating whether we get an error or not depending on if invalid kfunc call remains after elimination of unreachable instructions. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211002011757.311265-10-memxor@gmail.com
29 lines
716 B
C
29 lines
716 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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#include <network_helpers.h>
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#include "test_ksyms_module.skel.h"
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void test_ksyms_module_libbpf(void)
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{
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struct test_ksyms_module *skel;
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int retval, err;
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if (!env.has_testmod) {
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test__skip();
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return;
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}
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skel = test_ksyms_module__open_and_load();
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if (!ASSERT_OK_PTR(skel, "test_ksyms_module__open"))
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return;
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err = bpf_prog_test_run(bpf_program__fd(skel->progs.load), 1, &pkt_v4,
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sizeof(pkt_v4), NULL, NULL, (__u32 *)&retval, NULL);
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if (!ASSERT_OK(err, "bpf_prog_test_run"))
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goto cleanup;
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ASSERT_EQ(retval, 0, "retval");
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ASSERT_EQ(skel->bss->out_bpf_testmod_ksym, 42, "bpf_testmod_ksym");
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cleanup:
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test_ksyms_module__destroy(skel);
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}
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