linuxdebug/tools/testing/selftests/bpf/prog_tests/btf_module.c

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2024-07-16 15:50:57 +02:00
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2021 Hengqi Chen */
#include <test_progs.h>
#include <bpf/btf.h>
static const char *module_name = "bpf_testmod";
static const char *symbol_name = "bpf_testmod_test_read";
void test_btf_module()
{
struct btf *vmlinux_btf, *module_btf;
__s32 type_id;
if (!env.has_testmod) {
test__skip();
return;
}
vmlinux_btf = btf__load_vmlinux_btf();
if (!ASSERT_OK_PTR(vmlinux_btf, "could not load vmlinux BTF"))
return;
module_btf = btf__load_module_btf(module_name, vmlinux_btf);
if (!ASSERT_OK_PTR(module_btf, "could not load module BTF"))
goto cleanup;
type_id = btf__find_by_name(module_btf, symbol_name);
ASSERT_GT(type_id, 0, "func not found");
cleanup:
btf__free(module_btf);
btf__free(vmlinux_btf);
}