1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
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 
33 #ifndef	_PMCSTAT_PL_CALLGRAPH_H_
34 #define	_PMCSTAT_PL_CALLGRAPH_H_
35 
36 /*
37  * Each call graph node is tracked by a pmcstat_cgnode struct.
38  */
39 
40 struct pmcstat_cgnode {
41 	struct pmcstat_image	*pcg_image;
42 	uintfptr_t		pcg_func;
43 	uint32_t		pcg_count;
44 	uint32_t		pcg_nchildren;
45 	LIST_ENTRY(pmcstat_cgnode) pcg_sibling;
46 	LIST_HEAD(,pmcstat_cgnode) pcg_children;
47 };
48 
49 struct pmcstat_cgnode_hash {
50 	struct pmcstat_cgnode  *pch_cgnode;
51 	pmc_id_t		pch_pmcid;
52 	LIST_ENTRY(pmcstat_cgnode_hash) pch_next;
53 };
54 extern LIST_HEAD(pmcstat_cgnode_hash_list, pmcstat_cgnode_hash) pmcstat_cgnode_hash[PMCSTAT_NHASH];
55 extern int pmcstat_cgnode_hash_count;
56 
57 /* Function prototypes */
58 int pmcpl_cg_init(void);
59 void pmcpl_cg_shutdown(FILE *mf);
60 void pmcpl_cg_process(
61     struct pmcstat_process *pp, struct pmcstat_pmcrecord *pmcr,
62     uint32_t nsamples, uintfptr_t *cc, int usermode, uint32_t cpu);
63 int pmcpl_cg_topkeypress(int c, void *w);
64 void pmcpl_cg_topdisplay(void);
65 void pmcpl_cg_configure(char *opt);
66 
67 #endif	/* _PMCSTAT_PL_CALLGRAPH_H_ */
68