1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2005-2007, Joseph Koshy
5  * Copyright (c) 2007 The FreeBSD Foundation
6  * All rights reserved.
7  *
8  * Portions of this software were developed by A. Joseph Koshy under
9  * sponsorship from the FreeBSD Foundation and Google, Inc.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * $FreeBSD$
33  */
34 
35 #ifndef	_PMCSTAT_PL_CALLGRAPH_H_
36 #define	_PMCSTAT_PL_CALLGRAPH_H_
37 
38 /*
39  * Each call graph node is tracked by a pmcstat_cgnode struct.
40  */
41 
42 struct pmcstat_cgnode {
43 	struct pmcstat_image	*pcg_image;
44 	uintfptr_t		pcg_func;
45 	uint32_t		pcg_count;
46 	uint32_t		pcg_nchildren;
47 	LIST_ENTRY(pmcstat_cgnode) pcg_sibling;
48 	LIST_HEAD(,pmcstat_cgnode) pcg_children;
49 };
50 
51 struct pmcstat_cgnode_hash {
52 	struct pmcstat_cgnode  *pch_cgnode;
53 	pmc_id_t		pch_pmcid;
54 	LIST_ENTRY(pmcstat_cgnode_hash) pch_next;
55 };
56 extern LIST_HEAD(pmcstat_cgnode_hash_list, pmcstat_cgnode_hash) pmcstat_cgnode_hash[PMCSTAT_NHASH];
57 extern int pmcstat_cgnode_hash_count;
58 
59 /* Function prototypes */
60 int pmcpl_cg_init(void);
61 void pmcpl_cg_shutdown(FILE *mf);
62 void pmcpl_cg_process(
63     struct pmcstat_process *pp, struct pmcstat_pmcrecord *pmcr,
64     uint32_t nsamples, uintfptr_t *cc, int usermode, uint32_t cpu);
65 int pmcpl_cg_topkeypress(int c, void *w);
66 void pmcpl_cg_topdisplay(void);
67 void pmcpl_cg_configure(char *opt);
68 
69 #endif	/* _PMCSTAT_PL_CALLGRAPH_H_ */
70