// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2021 Facebook */ #include <test_progs.h> #include <sys/syscall.h> #include "linked_vars.skel.h" void test_linked_vars(void) { int err; struct linked_vars *skel; skel = linked_vars__open(); if (!ASSERT_OK_PTR(skel, "skel_open")) return; skel->bss->input_bss1 = 1000; skel->bss->input_bss2 = 2000; skel->bss->input_bss_weak = 3000; err = linked_vars__load(skel); if (!ASSERT_OK(err, "skel_load")) goto cleanup; err = linked_vars__attach(skel); if (!ASSERT_OK(err, "skel_attach")) goto cleanup; /* trigger */ syscall(SYS_getpgid); ASSERT_EQ(skel->bss->output_bss1, 1000 + 2000 + 3000, "output_bss1"); ASSERT_EQ(skel->bss->output_bss2, 1000 + 2000 + 3000, "output_bss2"); /* 10 comes from "winner" input_data_weak in first obj file */ ASSERT_EQ(skel->bss->output_data1, 1 + 2 + 10, "output_bss1"); ASSERT_EQ(skel->bss->output_data2, 1 + 2 + 10, "output_bss2"); /* 100 comes from "winner" input_rodata_weak in first obj file */ ASSERT_EQ(skel->bss->output_rodata1, 11 + 22 + 100, "output_weak1"); ASSERT_EQ(skel->bss->output_rodata2, 11 + 22 + 100, "output_weak2"); cleanup: linked_vars__destroy(skel); }