brintos

brintos / linux-shallow public Read only

0
0
Text · 1.9 KiB · 3a2ec39 Raw
90 lines · c
1// SPDX-License-Identifier: GPL-2.02/* Copyright (C) 2023. Huawei Technologies Co., Ltd */3#define _GNU_SOURCE4#include <sched.h>5#include <pthread.h>6#include <stdbool.h>7#include <test_progs.h>8 9#include "preempted_bpf_ma_op.skel.h"10 11#define ALLOC_THREAD_NR 412#define ALLOC_LOOP_NR 51213 14struct alloc_ctx {15	/* output */16	int run_err;17	/* input */18	int fd;19	bool *nomem_err;20};21 22static void *run_alloc_prog(void *data)23{24	struct alloc_ctx *ctx = data;25	cpu_set_t cpu_set;26	int i;27 28	CPU_ZERO(&cpu_set);29	CPU_SET(0, &cpu_set);30	pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set);31 32	for (i = 0; i < ALLOC_LOOP_NR && !*ctx->nomem_err; i++) {33		LIBBPF_OPTS(bpf_test_run_opts, topts);34		int err;35 36		err = bpf_prog_test_run_opts(ctx->fd, &topts);37		ctx->run_err |= err | topts.retval;38	}39 40	return NULL;41}42 43void test_preempted_bpf_ma_op(void)44{45	struct alloc_ctx ctx[ALLOC_THREAD_NR];46	struct preempted_bpf_ma_op *skel;47	pthread_t tid[ALLOC_THREAD_NR];48	int i, err;49 50	skel = preempted_bpf_ma_op__open_and_load();51	if (!ASSERT_OK_PTR(skel, "open_and_load"))52		return;53 54	err = preempted_bpf_ma_op__attach(skel);55	if (!ASSERT_OK(err, "attach"))56		goto out;57 58	for (i = 0; i < ARRAY_SIZE(ctx); i++) {59		struct bpf_program *prog;60		char name[8];61 62		snprintf(name, sizeof(name), "test%d", i);63		prog = bpf_object__find_program_by_name(skel->obj, name);64		if (!ASSERT_OK_PTR(prog, "no test prog"))65			goto out;66 67		ctx[i].run_err = 0;68		ctx[i].fd = bpf_program__fd(prog);69		ctx[i].nomem_err = &skel->bss->nomem_err;70	}71 72	memset(tid, 0, sizeof(tid));73	for (i = 0; i < ARRAY_SIZE(tid); i++) {74		err = pthread_create(&tid[i], NULL, run_alloc_prog, &ctx[i]);75		if (!ASSERT_OK(err, "pthread_create"))76			break;77	}78 79	for (i = 0; i < ARRAY_SIZE(tid); i++) {80		if (!tid[i])81			break;82		pthread_join(tid[i], NULL);83		ASSERT_EQ(ctx[i].run_err, 0, "run prog err");84	}85 86	ASSERT_FALSE(skel->bss->nomem_err, "ENOMEM");87out:88	preempted_bpf_ma_op__destroy(skel);89}90