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1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) Meta Platforms, Inc. and affiliates. */3 4#include <test_progs.h>5#include "test_subskeleton.skel.h"6#include "test_subskeleton_lib.subskel.h"7 8static void subskeleton_lib_setup(struct bpf_object *obj)9{10 struct test_subskeleton_lib *lib = test_subskeleton_lib__open(obj);11 12 if (!ASSERT_OK_PTR(lib, "open subskeleton"))13 return;14 15 *lib->rodata.var1 = 1;16 *lib->data.var2 = 2;17 lib->bss.var3->var3_1 = 3;18 lib->bss.var3->var3_2 = 4;19 20 test_subskeleton_lib__destroy(lib);21}22 23static int subskeleton_lib_subresult(struct bpf_object *obj)24{25 struct test_subskeleton_lib *lib = test_subskeleton_lib__open(obj);26 int result;27 28 if (!ASSERT_OK_PTR(lib, "open subskeleton"))29 return -EINVAL;30 31 result = *lib->bss.libout1;32 ASSERT_EQ(result, 1 + 2 + 3 + 4 + 5 + 6, "lib subresult");33 34 ASSERT_OK_PTR(lib->progs.lib_perf_handler, "lib_perf_handler");35 ASSERT_STREQ(bpf_program__name(lib->progs.lib_perf_handler),36 "lib_perf_handler", "program name");37 38 ASSERT_OK_PTR(lib->maps.map1, "map1");39 ASSERT_STREQ(bpf_map__name(lib->maps.map1), "map1", "map name");40 41 ASSERT_EQ(*lib->data.var5, 5, "__weak var5");42 ASSERT_EQ(*lib->data.var6, 6, "extern var6");43 ASSERT_TRUE(*lib->kconfig.CONFIG_BPF_SYSCALL, "CONFIG_BPF_SYSCALL");44 45 test_subskeleton_lib__destroy(lib);46 return result;47}48 49void test_subskeleton(void)50{51 int err, result;52 struct test_subskeleton *skel;53 54 skel = test_subskeleton__open();55 if (!ASSERT_OK_PTR(skel, "skel_open"))56 return;57 58 skel->rodata->rovar1 = 10;59 skel->rodata->var1 = 1;60 subskeleton_lib_setup(skel->obj);61 62 err = test_subskeleton__load(skel);63 if (!ASSERT_OK(err, "skel_load"))64 goto cleanup;65 66 err = test_subskeleton__attach(skel);67 if (!ASSERT_OK(err, "skel_attach"))68 goto cleanup;69 70 /* trigger tracepoint */71 usleep(1);72 73 result = subskeleton_lib_subresult(skel->obj) * 10;74 ASSERT_EQ(skel->bss->out1, result, "unexpected calculation");75 76cleanup:77 test_subskeleton__destroy(skel);78}79