// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2021 Facebook */ #include "vmlinux.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> #ifndef __has_attribute #define __has_attribute(x) 0 #endif #if __has_attribute(btf_decl_tag) #define __tag1 __attribute__((btf_decl_tag("tag1"))) #define __tag2 __attribute__((btf_decl_tag("tag2"))) volatile const bool skip_tests __tag1 __tag2 = false; #else #define __tag1 #define __tag2 volatile const bool skip_tests = true; #endif struct key_t { int a; int b __tag1 __tag2; int c; } __tag1 __tag2; typedef struct { int a; int b; } value_t __tag1 __tag2; struct { __uint(type, BPF_MAP_TYPE_HASH); __uint(max_entries, 3); __type(key, struct key_t); __type(value, value_t); } hashmap1 SEC(".maps"); static __noinline int foo(int x __tag1 __tag2) __tag1 __tag2 { struct key_t key; value_t val = {}; key.a = key.b = key.c = x; bpf_map_update_elem(&hashmap1, &key, &val, 0); return 0; } SEC("fentry/bpf_fentry_test1") int BPF_PROG(sub, int x) { return foo(x); }