1 /* 2 * Copyright (c) 2021 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 26 */ 27 #ifndef _KCOV_STKSZ_H_ 28 #define _KCOV_STKSZ_H_ 29 30 #include <stdbool.h> 31 32 #include <kern/thread.h> 33 #include <mach/vm_types.h> 34 35 #include <san/kcov_stksz_data.h> 36 37 #if KERNEL_PRIVATE 38 39 #if CONFIG_STKSZ 40 41 __BEGIN_DECLS 42 43 void kcov_stksz_init_thread(kcov_stksz_thread_t *); 44 void kcov_stksz_update_stack_size(thread_t, kcov_thread_data_t *, void *, uintptr_t); 45 46 /* Sets ksancov stack for given thread. */ 47 void kcov_stksz_set_thread_stack(thread_t, vm_offset_t); 48 49 /* Returns stack info for given thread. */ 50 vm_offset_t kcov_stksz_get_thread_stkbase(thread_t); 51 vm_offset_t kcov_stksz_get_thread_stksize(thread_t); 52 53 __END_DECLS 54 55 #else 56 57 #define kcov_stksz_init_thread(thread) 58 #define kcov_stksz_update_stack_size(thread, data, caller, sp) 59 60 #endif /* CONFIG_STKSZ */ 61 62 #endif /* KERNEL_PRIVATE */ 63 64 #endif /* _KCOV_STKSZ_H_ */ 65