1*043036a2SApple OSS Distributions /* 2*043036a2SApple OSS Distributions * Copyright (c) 2005-2006 Apple Computer, Inc. All rights reserved. 3*043036a2SApple OSS Distributions * 4*043036a2SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*043036a2SApple OSS Distributions * 6*043036a2SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*043036a2SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*043036a2SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*043036a2SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*043036a2SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*043036a2SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*043036a2SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*043036a2SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*043036a2SApple OSS Distributions * 15*043036a2SApple OSS Distributions * Please obtain a copy of the License at 16*043036a2SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*043036a2SApple OSS Distributions * 18*043036a2SApple OSS Distributions * The Original Code and all software distributed under the License are 19*043036a2SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*043036a2SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*043036a2SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*043036a2SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*043036a2SApple OSS Distributions * Please see the License for the specific language governing rights and 24*043036a2SApple OSS Distributions * limitations under the License. 25*043036a2SApple OSS Distributions * 26*043036a2SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*043036a2SApple OSS Distributions */ 28*043036a2SApple OSS Distributions 29*043036a2SApple OSS Distributions #ifndef _FBT_H 30*043036a2SApple OSS Distributions #define _FBT_H 31*043036a2SApple OSS Distributions 32*043036a2SApple OSS Distributions #if defined (__x86_64__) 33*043036a2SApple OSS Distributions typedef uint8_t machine_inst_t; 34*043036a2SApple OSS Distributions #elif defined(__arm__) 35*043036a2SApple OSS Distributions typedef uint16_t machine_inst_t; 36*043036a2SApple OSS Distributions #elif defined(__arm64__) 37*043036a2SApple OSS Distributions typedef uint32_t machine_inst_t; 38*043036a2SApple OSS Distributions #else 39*043036a2SApple OSS Distributions #error Unknown Architecture 40*043036a2SApple OSS Distributions #endif 41*043036a2SApple OSS Distributions 42*043036a2SApple OSS Distributions #define MAX_FBTP_NAME_CHARS 16 43*043036a2SApple OSS Distributions 44*043036a2SApple OSS Distributions typedef struct fbt_probe { 45*043036a2SApple OSS Distributions struct fbt_probe *fbtp_hashnext; 46*043036a2SApple OSS Distributions machine_inst_t *fbtp_patchpoint; 47*043036a2SApple OSS Distributions int8_t fbtp_rval; 48*043036a2SApple OSS Distributions machine_inst_t fbtp_patchval; 49*043036a2SApple OSS Distributions machine_inst_t fbtp_savedval; 50*043036a2SApple OSS Distributions machine_inst_t fbtp_currentval; 51*043036a2SApple OSS Distributions uintptr_t fbtp_roffset; 52*043036a2SApple OSS Distributions dtrace_id_t fbtp_id; 53*043036a2SApple OSS Distributions /* FIXME! 54*043036a2SApple OSS Distributions * This field appears to only be used in error messages. 55*043036a2SApple OSS Distributions * It puts this structure into the next size bucket in kmem_alloc 56*043036a2SApple OSS Distributions * wasting 32 bytes per probe. (in i386 only) 57*043036a2SApple OSS Distributions */ 58*043036a2SApple OSS Distributions char fbtp_name[MAX_FBTP_NAME_CHARS]; 59*043036a2SApple OSS Distributions struct modctl *fbtp_ctl; 60*043036a2SApple OSS Distributions int fbtp_loadcnt; 61*043036a2SApple OSS Distributions struct fbt_probe *fbtp_next; 62*043036a2SApple OSS Distributions } fbt_probe_t; 63*043036a2SApple OSS Distributions 64*043036a2SApple OSS Distributions extern int dtrace_invop(uintptr_t, uintptr_t *, uintptr_t); 65*043036a2SApple OSS Distributions extern int fbt_invop(uintptr_t, uintptr_t *, uintptr_t); 66*043036a2SApple OSS Distributions extern void fbt_provide_module(void *, struct modctl *); 67*043036a2SApple OSS Distributions extern int fbt_enable (void *arg, dtrace_id_t id, void *parg); 68*043036a2SApple OSS Distributions 69*043036a2SApple OSS Distributions extern bool fbt_module_excluded(struct modctl*); 70*043036a2SApple OSS Distributions extern bool fbt_excluded(const char *); 71*043036a2SApple OSS Distributions 72*043036a2SApple OSS Distributions extern void fbt_blacklist_init(void); 73*043036a2SApple 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*043036a2SApple OSS Distributions #endif /* _FBT_H */ 75