1*f6217f89SApple OSS Distributions /* 2*f6217f89SApple OSS Distributions * Copyright (c) 2005-2006 Apple Computer, Inc. All rights reserved. 3*f6217f89SApple OSS Distributions * 4*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*f6217f89SApple OSS Distributions * 6*f6217f89SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*f6217f89SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*f6217f89SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*f6217f89SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*f6217f89SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*f6217f89SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*f6217f89SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*f6217f89SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*f6217f89SApple OSS Distributions * 15*f6217f89SApple OSS Distributions * Please obtain a copy of the License at 16*f6217f89SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*f6217f89SApple OSS Distributions * 18*f6217f89SApple OSS Distributions * The Original Code and all software distributed under the License are 19*f6217f89SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*f6217f89SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*f6217f89SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*f6217f89SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*f6217f89SApple OSS Distributions * Please see the License for the specific language governing rights and 24*f6217f89SApple OSS Distributions * limitations under the License. 25*f6217f89SApple OSS Distributions * 26*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*f6217f89SApple OSS Distributions */ 28*f6217f89SApple OSS Distributions 29*f6217f89SApple OSS Distributions #ifndef _FBT_H 30*f6217f89SApple OSS Distributions #define _FBT_H 31*f6217f89SApple OSS Distributions 32*f6217f89SApple OSS Distributions #if defined (__x86_64__) 33*f6217f89SApple OSS Distributions typedef uint8_t machine_inst_t; 34*f6217f89SApple OSS Distributions #elif defined(__arm__) 35*f6217f89SApple OSS Distributions typedef uint16_t machine_inst_t; 36*f6217f89SApple OSS Distributions #elif defined(__arm64__) 37*f6217f89SApple OSS Distributions typedef uint32_t machine_inst_t; 38*f6217f89SApple OSS Distributions #else 39*f6217f89SApple OSS Distributions #error Unknown Architecture 40*f6217f89SApple OSS Distributions #endif 41*f6217f89SApple OSS Distributions 42*f6217f89SApple OSS Distributions #define MAX_FBTP_NAME_CHARS 16 43*f6217f89SApple OSS Distributions 44*f6217f89SApple OSS Distributions typedef struct fbt_probe { 45*f6217f89SApple OSS Distributions struct fbt_probe *fbtp_hashnext; 46*f6217f89SApple OSS Distributions machine_inst_t *fbtp_patchpoint; 47*f6217f89SApple OSS Distributions int8_t fbtp_rval; 48*f6217f89SApple OSS Distributions machine_inst_t fbtp_patchval; 49*f6217f89SApple OSS Distributions machine_inst_t fbtp_savedval; 50*f6217f89SApple OSS Distributions machine_inst_t fbtp_currentval; 51*f6217f89SApple OSS Distributions uintptr_t fbtp_roffset; 52*f6217f89SApple OSS Distributions dtrace_id_t fbtp_id; 53*f6217f89SApple OSS Distributions /* FIXME! 54*f6217f89SApple OSS Distributions * This field appears to only be used in error messages. 55*f6217f89SApple OSS Distributions * It puts this structure into the next size bucket in kmem_alloc 56*f6217f89SApple OSS Distributions * wasting 32 bytes per probe. (in i386 only) 57*f6217f89SApple OSS Distributions */ 58*f6217f89SApple OSS Distributions char fbtp_name[MAX_FBTP_NAME_CHARS]; 59*f6217f89SApple OSS Distributions struct modctl *fbtp_ctl; 60*f6217f89SApple OSS Distributions int fbtp_loadcnt; 61*f6217f89SApple OSS Distributions struct fbt_probe *fbtp_next; 62*f6217f89SApple OSS Distributions } fbt_probe_t; 63*f6217f89SApple OSS Distributions 64*f6217f89SApple OSS Distributions extern int dtrace_invop(uintptr_t, uintptr_t *, uintptr_t); 65*f6217f89SApple OSS Distributions extern int fbt_invop(uintptr_t, uintptr_t *, uintptr_t); 66*f6217f89SApple OSS Distributions extern void fbt_provide_module(void *, struct modctl *); 67*f6217f89SApple OSS Distributions extern int fbt_enable (void *arg, dtrace_id_t id, void *parg); 68*f6217f89SApple OSS Distributions 69*f6217f89SApple OSS Distributions extern bool fbt_module_excluded(struct modctl*); 70*f6217f89SApple OSS Distributions extern bool fbt_excluded(const char *); 71*f6217f89SApple OSS Distributions 72*f6217f89SApple OSS Distributions extern void fbt_blacklist_init(void); 73*f6217f89SApple OSS Distributions extern void fbt_provide_probe(struct modctl *ctl, const char *modname, const char *name, machine_inst_t *instr, machine_inst_t *limit); 74*f6217f89SApple OSS Distributions #endif /* _FBT_H */ 75