44 lines · c
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_vars.skel.h"7 8void test_linked_vars(void)9{10 int err;11 struct linked_vars *skel;12 13 skel = linked_vars__open();14 if (!ASSERT_OK_PTR(skel, "skel_open"))15 return;16 17 skel->bss->input_bss1 = 1000;18 skel->bss->input_bss2 = 2000;19 skel->bss->input_bss_weak = 3000;20 21 err = linked_vars__load(skel);22 if (!ASSERT_OK(err, "skel_load"))23 goto cleanup;24 25 err = linked_vars__attach(skel);26 if (!ASSERT_OK(err, "skel_attach"))27 goto cleanup;28 29 /* trigger */30 syscall(SYS_getpgid);31 32 ASSERT_EQ(skel->bss->output_bss1, 1000 + 2000 + 3000, "output_bss1");33 ASSERT_EQ(skel->bss->output_bss2, 1000 + 2000 + 3000, "output_bss2");34 /* 10 comes from "winner" input_data_weak in first obj file */35 ASSERT_EQ(skel->bss->output_data1, 1 + 2 + 10, "output_bss1");36 ASSERT_EQ(skel->bss->output_data2, 1 + 2 + 10, "output_bss2");37 /* 100 comes from "winner" input_rodata_weak in first obj file */38 ASSERT_EQ(skel->bss->output_rodata1, 11 + 22 + 100, "output_weak1");39 ASSERT_EQ(skel->bss->output_rodata2, 11 + 22 + 100, "output_weak2");40 41cleanup:42 linked_vars__destroy(skel);43}44