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5e9cf77d81
Add fentry_many_args.c and fexit_many_args.c to test the fentry/fexit with 7/11 arguments. As this feature is not supported by arm64 yet, we disable these testcases for arm64 in DENYLIST.aarch64. We can combine them with fentry_test.c/fexit_test.c when arm64 is supported too. Correspondingly, add bpf_testmod_fentry_test7() and bpf_testmod_fentry_test11() to bpf_testmod.c Meanwhile, add bpf_modify_return_test2() to test_run.c to test the MODIFY_RETURN with 7 arguments. Add bpf_testmod_test_struct_arg_7/bpf_testmod_test_struct_arg_7 in bpf_testmod.c to test the struct in the arguments. And the testcases passed on x86_64: ./test_progs -t fexit Summary: 5/14 PASSED, 0 SKIPPED, 0 FAILED ./test_progs -t fentry Summary: 3/2 PASSED, 0 SKIPPED, 0 FAILED ./test_progs -t modify_return Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED ./test_progs -t tracing_struct Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Menglong Dong <imagedong@tencent.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/r/20230713040738.1789742-4-imagedong@tencent.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
93 lines
2.3 KiB
C
93 lines
2.3 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 "fentry_test.lskel.h"
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#include "fentry_many_args.skel.h"
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static int fentry_test_common(struct fentry_test_lskel *fentry_skel)
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{
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int err, prog_fd, i;
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int link_fd;
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__u64 *result;
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LIBBPF_OPTS(bpf_test_run_opts, topts);
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err = fentry_test_lskel__attach(fentry_skel);
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if (!ASSERT_OK(err, "fentry_attach"))
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return err;
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/* Check that already linked program can't be attached again. */
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link_fd = fentry_test_lskel__test1__attach(fentry_skel);
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if (!ASSERT_LT(link_fd, 0, "fentry_attach_link"))
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return -1;
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prog_fd = fentry_skel->progs.test1.prog_fd;
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err = bpf_prog_test_run_opts(prog_fd, &topts);
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ASSERT_OK(err, "test_run");
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ASSERT_EQ(topts.retval, 0, "test_run");
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result = (__u64 *)fentry_skel->bss;
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for (i = 0; i < sizeof(*fentry_skel->bss) / sizeof(__u64); i++) {
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if (!ASSERT_EQ(result[i], 1, "fentry_result"))
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return -1;
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}
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fentry_test_lskel__detach(fentry_skel);
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/* zero results for re-attach test */
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memset(fentry_skel->bss, 0, sizeof(*fentry_skel->bss));
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return 0;
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}
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static void fentry_test(void)
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{
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struct fentry_test_lskel *fentry_skel = NULL;
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int err;
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fentry_skel = fentry_test_lskel__open_and_load();
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if (!ASSERT_OK_PTR(fentry_skel, "fentry_skel_load"))
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goto cleanup;
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err = fentry_test_common(fentry_skel);
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if (!ASSERT_OK(err, "fentry_first_attach"))
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goto cleanup;
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err = fentry_test_common(fentry_skel);
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ASSERT_OK(err, "fentry_second_attach");
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cleanup:
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fentry_test_lskel__destroy(fentry_skel);
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}
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static void fentry_many_args(void)
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{
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struct fentry_many_args *fentry_skel = NULL;
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int err;
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fentry_skel = fentry_many_args__open_and_load();
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if (!ASSERT_OK_PTR(fentry_skel, "fentry_many_args_skel_load"))
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goto cleanup;
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err = fentry_many_args__attach(fentry_skel);
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if (!ASSERT_OK(err, "fentry_many_args_attach"))
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goto cleanup;
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ASSERT_OK(trigger_module_test_read(1), "trigger_read");
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ASSERT_EQ(fentry_skel->bss->test1_result, 1,
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"fentry_many_args_result1");
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ASSERT_EQ(fentry_skel->bss->test2_result, 1,
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"fentry_many_args_result2");
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ASSERT_EQ(fentry_skel->bss->test3_result, 1,
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"fentry_many_args_result3");
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cleanup:
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fentry_many_args__destroy(fentry_skel);
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}
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void test_fentry_test(void)
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{
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if (test__start_subtest("fentry"))
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fentry_test();
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if (test__start_subtest("fentry_many_args"))
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fentry_many_args();
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}
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