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1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2021 Facebook */3 4#include <test_progs.h>5#include <sys/syscall.h>6#include "linked_funcs.skel.h"7 8void test_linked_funcs(void)9{10 int err;11 struct linked_funcs *skel;12 13 skel = linked_funcs__open();14 if (!ASSERT_OK_PTR(skel, "skel_open"))15 return;16 17 /* handler1 and handler2 are marked as SEC("?raw_tp/sys_enter") and18 * are set to not autoload by default19 */20 bpf_program__set_autoload(skel->progs.handler1, true);21 bpf_program__set_autoload(skel->progs.handler2, true);22 23 skel->rodata->my_tid = syscall(SYS_gettid);24 skel->bss->syscall_id = SYS_getpgid;25 26 err = linked_funcs__load(skel);27 if (!ASSERT_OK(err, "skel_load"))28 goto cleanup;29 30 err = linked_funcs__attach(skel);31 if (!ASSERT_OK(err, "skel_attach"))32 goto cleanup;33 34 /* trigger */35 syscall(SYS_getpgid);36 37 ASSERT_EQ(skel->bss->output_val1, 2000 + 2000, "output_val1");38 ASSERT_EQ(skel->bss->output_ctx1, SYS_getpgid, "output_ctx1");39 ASSERT_EQ(skel->bss->output_weak1, 42, "output_weak1");40 41 ASSERT_EQ(skel->bss->output_val2, 2 * 1000 + 2 * (2 * 1000), "output_val2");42 ASSERT_EQ(skel->bss->output_ctx2, SYS_getpgid, "output_ctx2");43 /* output_weak2 should never be updated */44 ASSERT_EQ(skel->bss->output_weak2, 0, "output_weak2");45 46cleanup:47 linked_funcs__destroy(skel);48}49