1*4d495c6eSApple OSS Distributions /* 2*4d495c6eSApple OSS Distributions * Copyright (c) 2005-2006 Apple Computer, Inc. All rights reserved. 3*4d495c6eSApple OSS Distributions * 4*4d495c6eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*4d495c6eSApple OSS Distributions * 6*4d495c6eSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*4d495c6eSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*4d495c6eSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*4d495c6eSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*4d495c6eSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*4d495c6eSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*4d495c6eSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*4d495c6eSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*4d495c6eSApple OSS Distributions * 15*4d495c6eSApple OSS Distributions * Please obtain a copy of the License at 16*4d495c6eSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*4d495c6eSApple OSS Distributions * 18*4d495c6eSApple OSS Distributions * The Original Code and all software distributed under the License are 19*4d495c6eSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*4d495c6eSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*4d495c6eSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*4d495c6eSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*4d495c6eSApple OSS Distributions * Please see the License for the specific language governing rights and 24*4d495c6eSApple OSS Distributions * limitations under the License. 25*4d495c6eSApple OSS Distributions * 26*4d495c6eSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*4d495c6eSApple OSS Distributions */ 28*4d495c6eSApple OSS Distributions 29*4d495c6eSApple OSS Distributions #ifndef _FBT_H 30*4d495c6eSApple OSS Distributions #define _FBT_H 31*4d495c6eSApple OSS Distributions 32*4d495c6eSApple OSS Distributions #if defined (__x86_64__) 33*4d495c6eSApple OSS Distributions typedef uint8_t machine_inst_t; 34*4d495c6eSApple OSS Distributions #elif defined(__arm__) 35*4d495c6eSApple OSS Distributions typedef uint16_t machine_inst_t; 36*4d495c6eSApple OSS Distributions #elif defined(__arm64__) 37*4d495c6eSApple OSS Distributions typedef uint32_t machine_inst_t; 38*4d495c6eSApple OSS Distributions #else 39*4d495c6eSApple OSS Distributions #error Unknown Architecture 40*4d495c6eSApple OSS Distributions #endif 41*4d495c6eSApple OSS Distributions 42*4d495c6eSApple OSS Distributions #define MAX_FBTP_NAME_CHARS 16 43*4d495c6eSApple OSS Distributions 44*4d495c6eSApple OSS Distributions typedef struct fbt_probe { 45*4d495c6eSApple OSS Distributions struct fbt_probe *fbtp_hashnext; 46*4d495c6eSApple OSS Distributions machine_inst_t *fbtp_patchpoint; 47*4d495c6eSApple OSS Distributions int8_t fbtp_rval; 48*4d495c6eSApple OSS Distributions machine_inst_t fbtp_patchval; 49*4d495c6eSApple OSS Distributions machine_inst_t fbtp_savedval; 50*4d495c6eSApple OSS Distributions machine_inst_t fbtp_currentval; 51*4d495c6eSApple OSS Distributions uintptr_t fbtp_roffset; 52*4d495c6eSApple OSS Distributions dtrace_id_t fbtp_id; 53*4d495c6eSApple OSS Distributions /* FIXME! 54*4d495c6eSApple OSS Distributions * This field appears to only be used in error messages. 55*4d495c6eSApple OSS Distributions * It puts this structure into the next size bucket in kmem_alloc 56*4d495c6eSApple OSS Distributions * wasting 32 bytes per probe. (in i386 only) 57*4d495c6eSApple OSS Distributions */ 58*4d495c6eSApple OSS Distributions char fbtp_name[MAX_FBTP_NAME_CHARS]; 59*4d495c6eSApple OSS Distributions struct modctl *fbtp_ctl; 60*4d495c6eSApple OSS Distributions int fbtp_loadcnt; 61*4d495c6eSApple OSS Distributions struct fbt_probe *fbtp_next; 62*4d495c6eSApple OSS Distributions } fbt_probe_t; 63*4d495c6eSApple OSS Distributions 64*4d495c6eSApple OSS Distributions extern int dtrace_invop(uintptr_t, uintptr_t *, uintptr_t); 65*4d495c6eSApple OSS Distributions extern int fbt_invop(uintptr_t, uintptr_t *, uintptr_t); 66*4d495c6eSApple OSS Distributions extern void fbt_provide_module(void *, struct modctl *); 67*4d495c6eSApple OSS Distributions extern int fbt_enable (void *arg, dtrace_id_t id, void *parg); 68*4d495c6eSApple OSS Distributions 69*4d495c6eSApple OSS Distributions extern bool fbt_module_excluded(struct modctl*); 70*4d495c6eSApple OSS Distributions extern bool fbt_excluded(const char *); 71*4d495c6eSApple OSS Distributions 72*4d495c6eSApple OSS Distributions extern void fbt_blacklist_init(void); 73*4d495c6eSApple 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*4d495c6eSApple OSS Distributions #endif /* _FBT_H */ 75