// SPDX-License-Identifier: GPL-2.0 #include <vmlinux.h> #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> #include "../test_kmods/bpf_testmod.h" char _license[] SEC("license") = "GPL"; void bpf_testmod_ops3_call_test_1(void) __ksym; int val_i, val_j; __noinline static int subprog2(int *a, int *b) { return val_i + a[1] + b[20]; } __noinline static int subprog1(int *a) { /* stack size 400 bytes */ int b[100] = {}; b[20] = 2; return subprog2(a, b); } SEC("struct_ops") int BPF_PROG(test_1) { /* stack size 20 bytes */ int a[5] = {}; a[1] = 1; val_j += subprog1(a); bpf_testmod_ops3_call_test_1(); return 0; } SEC(".struct_ops") struct bpf_testmod_ops3 testmod_1 = { .test_1 = (void *)test_1, };