// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/export.h>
|
#include <linux/kernel.h>
|
#include <linux/mutex.h>
|
#include "gcov.h"
|
|
/*
|
* __gcov_init is called by gcc-generated constructor code for each object
|
* file compiled with -fprofile-arcs.
|
*/
|
void __gcov_init(struct gcov_info *info)
|
{
|
static unsigned int gcov_version;
|
|
mutex_lock(&gcov_lock);
|
if (gcov_version == 0) {
|
gcov_version = gcov_info_version(info);
|
/*
|
* Printing gcc's version magic may prove useful for debugging
|
* incompatibility reports.
|
*/
|
pr_info("version magic: 0x%x\n", gcov_version);
|
}
|
/*
|
* Add new profiling data structure to list and inform event
|
* listener.
|
*/
|
gcov_info_link(info);
|
if (gcov_events_enabled)
|
gcov_event(GCOV_ADD, info);
|
mutex_unlock(&gcov_lock);
|
}
|
EXPORT_SYMBOL(__gcov_init);
|
|
/*
|
* These functions may be referenced by gcc-generated profiling code but serve
|
* no function for kernel profiling.
|
*/
|
void __gcov_flush(void)
|
{
|
/* Unused. */
|
}
|
EXPORT_SYMBOL(__gcov_flush);
|
|
void __gcov_merge_add(gcov_type *counters, unsigned int n_counters)
|
{
|
/* Unused. */
|
}
|
EXPORT_SYMBOL(__gcov_merge_add);
|
|
void __gcov_merge_single(gcov_type *counters, unsigned int n_counters)
|
{
|
/* Unused. */
|
}
|
EXPORT_SYMBOL(__gcov_merge_single);
|
|
void __gcov_merge_delta(gcov_type *counters, unsigned int n_counters)
|
{
|
/* Unused. */
|
}
|
EXPORT_SYMBOL(__gcov_merge_delta);
|
|
void __gcov_merge_ior(gcov_type *counters, unsigned int n_counters)
|
{
|
/* Unused. */
|
}
|
EXPORT_SYMBOL(__gcov_merge_ior);
|
|
void __gcov_merge_time_profile(gcov_type *counters, unsigned int n_counters)
|
{
|
/* Unused. */
|
}
|
EXPORT_SYMBOL(__gcov_merge_time_profile);
|
|
void __gcov_merge_icall_topn(gcov_type *counters, unsigned int n_counters)
|
{
|
/* Unused. */
|
}
|
EXPORT_SYMBOL(__gcov_merge_icall_topn);
|
|
void __gcov_exit(void)
|
{
|
/* Unused. */
|
}
|
EXPORT_SYMBOL(__gcov_exit);
|
