cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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btf_module.c (780B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/* Copyright (c) 2021 Hengqi Chen */
      3
      4#include <test_progs.h>
      5#include <bpf/btf.h>
      6
      7static const char *module_name = "bpf_testmod";
      8static const char *symbol_name = "bpf_testmod_test_read";
      9
     10void test_btf_module()
     11{
     12	struct btf *vmlinux_btf, *module_btf;
     13	__s32 type_id;
     14
     15	if (!env.has_testmod) {
     16		test__skip();
     17		return;
     18	}
     19
     20	vmlinux_btf = btf__load_vmlinux_btf();
     21	if (!ASSERT_OK_PTR(vmlinux_btf, "could not load vmlinux BTF"))
     22		return;
     23
     24	module_btf = btf__load_module_btf(module_name, vmlinux_btf);
     25	if (!ASSERT_OK_PTR(module_btf, "could not load module BTF"))
     26		goto cleanup;
     27
     28	type_id = btf__find_by_name(module_btf, symbol_name);
     29	ASSERT_GT(type_id, 0, "func not found");
     30
     31cleanup:
     32	btf__free(module_btf);
     33	btf__free(vmlinux_btf);
     34}