/*- * 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 |