5426539c71
add gcov support and export results as files in debugfs Reviewed by: hps@ MFC after: 1 week Sponsored by: iX Systems Differential Revision: https://reviews.freebsd.org/D19260
100 lines
3.6 KiB
C
100 lines
3.6 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2019, Matthew Macy <mmacy@freebsd.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
*/
|
|
|
|
#ifndef _SYS_GCOV_H_
|
|
#define _SYS_GCOV_H_
|
|
|
|
MALLOC_DECLARE(M_GCOV);
|
|
|
|
/*
|
|
* Profiling data types used for gcc 3.4 and above - these are defined by
|
|
* gcc and need to be kept as close to the original definition as possible to
|
|
* remain compatible.
|
|
*/
|
|
#define GCOV_DATA_MAGIC ((unsigned int) 0x67636461)
|
|
#define GCOV_TAG_FUNCTION ((unsigned int) 0x01000000)
|
|
#define GCOV_TAG_COUNTER_BASE ((unsigned int) 0x01a10000)
|
|
#define GCOV_TAG_FOR_COUNTER(count) \
|
|
(GCOV_TAG_COUNTER_BASE + ((unsigned int) (count) << 17))
|
|
|
|
typedef uint64_t gcov_type;
|
|
|
|
/* Opaque gcov_info. The gcov structures can change as for example in gcc 4.7 so
|
|
* we cannot use full definition here and they need to be placed in gcc specific
|
|
* implementation of gcov. This also means no direct access to the members in
|
|
* generic code and usage of the interface below.*/
|
|
struct gcov_info;
|
|
|
|
/* Interface to access gcov_info data */
|
|
const char *gcov_info_filename(struct gcov_info *info);
|
|
unsigned int gcov_info_version(struct gcov_info *info);
|
|
struct gcov_info *gcov_info_next(struct gcov_info *info);
|
|
void gcov_info_link(struct gcov_info *info);
|
|
void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info);
|
|
|
|
/* Base interface. */
|
|
enum gcov_action {
|
|
GCOV_ADD,
|
|
GCOV_REMOVE,
|
|
};
|
|
|
|
/* Iterator control. */
|
|
struct gcov_iterator;
|
|
|
|
struct gcov_iterator *gcov_iter_new(struct gcov_info *info);
|
|
void gcov_iter_free(struct gcov_iterator *iter);
|
|
void gcov_iter_start(struct gcov_iterator *iter);
|
|
int gcov_iter_next(struct gcov_iterator *iter);
|
|
int gcov_iter_write(struct gcov_iterator *iter, struct sbuf *sbuf);
|
|
struct gcov_info *gcov_iter_get_info(struct gcov_iterator *iter);
|
|
|
|
/* gcov_info control. */
|
|
void gcov_info_reset(struct gcov_info *info);
|
|
int gcov_info_is_compatible(struct gcov_info *info1, struct gcov_info *info2);
|
|
void gcov_info_add(struct gcov_info *dest, struct gcov_info *source);
|
|
struct gcov_info *gcov_info_dup(struct gcov_info *info);
|
|
void gcov_info_free(struct gcov_info *info);
|
|
void gcov_stats_reset(void);
|
|
void gcov_enable_events(void);
|
|
void gcov_module_unload(void *, module_t);
|
|
void gcov_fs_init(void);
|
|
|
|
int within_module(vm_offset_t addr, module_t mod);
|
|
|
|
struct gcov_link {
|
|
enum {
|
|
OBJ_TREE,
|
|
SRC_TREE,
|
|
} dir;
|
|
const char *ext;
|
|
};
|
|
extern const struct gcov_link gcov_link[];
|
|
#endif
|