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