// 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);