92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
/*
|
||
|
|
* Profiling infrastructure declarations.
|
||
|
|
*
|
||
|
|
* This file is based on gcc-internal definitions. Data structures are
|
||
|
|
* defined to be compatible with gcc counterparts. For a better
|
||
|
|
* understanding, refer to gcc source: gcc/gcov-io.h.
|
||
|
|
*
|
||
|
|
* Copyright IBM Corp. 2009
|
||
|
|
* Author(s): Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
|
||
|
|
*
|
||
|
|
* Uses gcc-internal data definitions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef GCOV_H
|
||
|
|
#define GCOV_H GCOV_H
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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))
|
||
|
|
|
||
|
|
#if BITS_PER_LONG >= 64
|
||
|
|
typedef long gcov_type;
|
||
|
|
#else
|
||
|
|
typedef long long gcov_type;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* 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);
|
||
|
|
bool gcov_info_within_module(struct gcov_info *info, struct module *mod);
|
||
|
|
|
||
|
|
/* Base interface. */
|
||
|
|
enum gcov_action {
|
||
|
|
GCOV_ADD,
|
||
|
|
GCOV_REMOVE,
|
||
|
|
};
|
||
|
|
|
||
|
|
void gcov_event(enum gcov_action action, struct gcov_info *info);
|
||
|
|
void gcov_enable_events(void);
|
||
|
|
|
||
|
|
/* Iterator control. */
|
||
|
|
struct seq_file;
|
||
|
|
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 seq_file *seq);
|
||
|
|
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);
|
||
|
|
|
||
|
|
struct gcov_link {
|
||
|
|
enum {
|
||
|
|
OBJ_TREE,
|
||
|
|
SRC_TREE,
|
||
|
|
} dir;
|
||
|
|
const char *ext;
|
||
|
|
};
|
||
|
|
extern const struct gcov_link gcov_link[];
|
||
|
|
|
||
|
|
extern int gcov_events_enabled;
|
||
|
|
extern struct mutex gcov_lock;
|
||
|
|
|
||
|
|
#endif /* GCOV_H */
|