1*d4514f0bSApple OSS Distributions /* 2*d4514f0bSApple OSS Distributions * Copyright (c) 2005-2006 Apple Computer, Inc. All rights reserved. 3*d4514f0bSApple OSS Distributions * 4*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*d4514f0bSApple OSS Distributions * 6*d4514f0bSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*d4514f0bSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*d4514f0bSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*d4514f0bSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*d4514f0bSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*d4514f0bSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*d4514f0bSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*d4514f0bSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*d4514f0bSApple OSS Distributions * 15*d4514f0bSApple OSS Distributions * Please obtain a copy of the License at 16*d4514f0bSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*d4514f0bSApple OSS Distributions * 18*d4514f0bSApple OSS Distributions * The Original Code and all software distributed under the License are 19*d4514f0bSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*d4514f0bSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*d4514f0bSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*d4514f0bSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*d4514f0bSApple OSS Distributions * Please see the License for the specific language governing rights and 24*d4514f0bSApple OSS Distributions * limitations under the License. 25*d4514f0bSApple OSS Distributions * 26*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*d4514f0bSApple OSS Distributions */ 28*d4514f0bSApple OSS Distributions 29*d4514f0bSApple OSS Distributions #ifndef _FBT_H 30*d4514f0bSApple OSS Distributions #define _FBT_H 31*d4514f0bSApple OSS Distributions 32*d4514f0bSApple OSS Distributions #if defined (__x86_64__) 33*d4514f0bSApple OSS Distributions typedef uint8_t machine_inst_t; 34*d4514f0bSApple OSS Distributions #elif defined(__arm__) 35*d4514f0bSApple OSS Distributions typedef uint16_t machine_inst_t; 36*d4514f0bSApple OSS Distributions #elif defined(__arm64__) 37*d4514f0bSApple OSS Distributions typedef uint32_t machine_inst_t; 38*d4514f0bSApple OSS Distributions #else 39*d4514f0bSApple OSS Distributions #error Unknown Architecture 40*d4514f0bSApple OSS Distributions #endif 41*d4514f0bSApple OSS Distributions 42*d4514f0bSApple OSS Distributions #define MAX_FBTP_NAME_CHARS 16 43*d4514f0bSApple OSS Distributions 44*d4514f0bSApple OSS Distributions typedef struct fbt_probe { 45*d4514f0bSApple OSS Distributions struct fbt_probe *fbtp_hashnext; 46*d4514f0bSApple OSS Distributions machine_inst_t *fbtp_patchpoint; 47*d4514f0bSApple OSS Distributions int8_t fbtp_rval; 48*d4514f0bSApple OSS Distributions machine_inst_t fbtp_patchval; 49*d4514f0bSApple OSS Distributions machine_inst_t fbtp_savedval; 50*d4514f0bSApple OSS Distributions machine_inst_t fbtp_currentval; 51*d4514f0bSApple OSS Distributions uintptr_t fbtp_roffset; 52*d4514f0bSApple OSS Distributions dtrace_id_t fbtp_id; 53*d4514f0bSApple OSS Distributions /* FIXME! 54*d4514f0bSApple OSS Distributions * This field appears to only be used in error messages. 55*d4514f0bSApple OSS Distributions * It puts this structure into the next size bucket in kmem_alloc 56*d4514f0bSApple OSS Distributions * wasting 32 bytes per probe. (in i386 only) 57*d4514f0bSApple OSS Distributions */ 58*d4514f0bSApple OSS Distributions char fbtp_name[MAX_FBTP_NAME_CHARS]; 59*d4514f0bSApple OSS Distributions struct modctl *fbtp_ctl; 60*d4514f0bSApple OSS Distributions int fbtp_loadcnt; 61*d4514f0bSApple OSS Distributions struct fbt_probe *fbtp_next; 62*d4514f0bSApple OSS Distributions } fbt_probe_t; 63*d4514f0bSApple OSS Distributions 64*d4514f0bSApple OSS Distributions extern int dtrace_invop(uintptr_t, uintptr_t *, uintptr_t); 65*d4514f0bSApple OSS Distributions extern int fbt_invop(uintptr_t, uintptr_t *, uintptr_t); 66*d4514f0bSApple OSS Distributions extern void fbt_provide_module(void *, struct modctl *); 67*d4514f0bSApple OSS Distributions extern int fbt_enable (void *arg, dtrace_id_t id, void *parg); 68*d4514f0bSApple OSS Distributions 69*d4514f0bSApple OSS Distributions extern bool fbt_module_excluded(struct modctl*); 70*d4514f0bSApple OSS Distributions extern bool fbt_excluded(const char *); 71*d4514f0bSApple OSS Distributions 72*d4514f0bSApple OSS Distributions extern void fbt_blacklist_init(void); 73*d4514f0bSApple 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*d4514f0bSApple OSS Distributions #endif /* _FBT_H */ 75