xref: /linux/tools/perf/util/btf.c (revision 7685b334d1e4927cc73b62c65293ba65748d9c52)
1*dcf90042SArnaldo Carvalho de Melo // SPDX-License-Identifier: GPL-2.0
2*dcf90042SArnaldo Carvalho de Melo /*
3*dcf90042SArnaldo Carvalho de Melo  * Arnaldo Carvalho de Melo <acme@redhat.com>
4*dcf90042SArnaldo Carvalho de Melo  *
5*dcf90042SArnaldo Carvalho de Melo  * Copyright (C) 2024, Red Hat, Inc
6*dcf90042SArnaldo Carvalho de Melo  */
7*dcf90042SArnaldo Carvalho de Melo 
8*dcf90042SArnaldo Carvalho de Melo #include <bpf/btf.h>
9*dcf90042SArnaldo Carvalho de Melo #include <util/btf.h>
10*dcf90042SArnaldo Carvalho de Melo #include <string.h>
11*dcf90042SArnaldo Carvalho de Melo 
12*dcf90042SArnaldo Carvalho de Melo const struct btf_member *__btf_type__find_member_by_name(struct btf *btf,
13*dcf90042SArnaldo Carvalho de Melo 							 int type_id, const char *member_name)
14*dcf90042SArnaldo Carvalho de Melo {
15*dcf90042SArnaldo Carvalho de Melo 	const struct btf_type *t = btf__type_by_id(btf, type_id);
16*dcf90042SArnaldo Carvalho de Melo 	const struct btf_member *m;
17*dcf90042SArnaldo Carvalho de Melo 	int i;
18*dcf90042SArnaldo Carvalho de Melo 
19*dcf90042SArnaldo Carvalho de Melo 	for (i = 0, m = btf_members(t); i < btf_vlen(t); i++, m++) {
20*dcf90042SArnaldo Carvalho de Melo 		const char *current_member_name = btf__name_by_offset(btf, m->name_off);
21*dcf90042SArnaldo Carvalho de Melo 
22*dcf90042SArnaldo Carvalho de Melo 		if (!strcmp(current_member_name, member_name))
23*dcf90042SArnaldo Carvalho de Melo 			return m;
24*dcf90042SArnaldo Carvalho de Melo 	}
25*dcf90042SArnaldo Carvalho de Melo 
26*dcf90042SArnaldo Carvalho de Melo 	return NULL;
27*dcf90042SArnaldo Carvalho de Melo }
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