79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
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* Copyright (c) 2024 David Vernet <dvernet@meta.com>
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*/
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#include <bpf/bpf.h>
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#include <sched.h>
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#include <scx/common.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include "prog_run.bpf.skel.h"
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#include "scx_test.h"
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static enum scx_test_status setup(void **ctx)
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{
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struct prog_run *skel;
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skel = prog_run__open_and_load();
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if (!skel) {
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SCX_ERR("Failed to open and load skel");
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return SCX_TEST_FAIL;
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}
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*ctx = skel;
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return SCX_TEST_PASS;
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}
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static enum scx_test_status run(void *ctx)
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{
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struct prog_run *skel = ctx;
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struct bpf_link *link;
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int prog_fd, err = 0;
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prog_fd = bpf_program__fd(skel->progs.prog_run_syscall);
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if (prog_fd < 0) {
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SCX_ERR("Failed to get BPF_PROG_RUN prog");
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return SCX_TEST_FAIL;
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}
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LIBBPF_OPTS(bpf_test_run_opts, topts);
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link = bpf_map__attach_struct_ops(skel->maps.prog_run_ops);
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if (!link) {
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SCX_ERR("Failed to attach scheduler");
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close(prog_fd);
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return SCX_TEST_FAIL;
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}
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err = bpf_prog_test_run_opts(prog_fd, &topts);
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SCX_EQ(err, 0);
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/* Assumes uei.kind is written last */
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while (skel->data->uei.kind == EXIT_KIND(SCX_EXIT_NONE))
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sched_yield();
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SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_UNREG_BPF));
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SCX_EQ(skel->data->uei.exit_code, 0xdeadbeef);
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close(prog_fd);
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bpf_link__destroy(link);
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return SCX_TEST_PASS;
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}
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static void cleanup(void *ctx)
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{
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struct prog_run *skel = ctx;
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prog_run__destroy(skel);
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}
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struct scx_test prog_run = {
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.name = "prog_run",
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.description = "Verify we can call into a scheduler with BPF_PROG_RUN, and invoke kfuncs",
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.setup = setup,
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.run = run,
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.cleanup = cleanup,
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};
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REGISTER_SCX_TEST(&prog_run)
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