projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 2d21ac55 A |
1 | /* |
| 2 | * Copyright (c) 2005-2006 Apple Computer, 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 | * | |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
| 27 | */ | |
| 28 | ||
| 29 | #ifndef _FBT_H | |
| 30 | #define _FBT_H | |
| 31 | ||
| 39236c6e | 32 | #if defined (__x86_64__) |
| 2d21ac55 | 33 | typedef uint8_t machine_inst_t; |
| 5ba3f43e A |
34 | #elif defined(__arm__) |
| 35 | typedef uint16_t machine_inst_t; | |
| 36 | #elif defined(__arm64__) | |
| 37 | typedef uint32_t machine_inst_t; | |
| 2d21ac55 A |
38 | #else |
| 39 | #error Unknown Architecture | |
| 40 | #endif | |
| 41 | ||
| 42 | #define MAX_FBTP_NAME_CHARS 16 | |
| 43 | ||
| 44 | typedef struct fbt_probe { | |
| 45 | struct fbt_probe *fbtp_hashnext; | |
| 46 | machine_inst_t *fbtp_patchpoint; | |
| 47 | int8_t fbtp_rval; | |
| 48 | machine_inst_t fbtp_patchval; | |
| 49 | machine_inst_t fbtp_savedval; | |
| 6d2010ae | 50 | machine_inst_t fbtp_currentval; |
| 2d21ac55 A |
51 | uintptr_t fbtp_roffset; |
| 52 | dtrace_id_t fbtp_id; | |
| 6d2010ae A |
53 | /* FIXME! |
| 54 | * This field appears to only be used in error messages. | |
| 55 | * It puts this structure into the next size bucket in kmem_alloc | |
| 56 | * wasting 32 bytes per probe. (in i386 only) | |
| 57 | */ | |
| 2d21ac55 A |
58 | char fbtp_name[MAX_FBTP_NAME_CHARS]; |
| 59 | struct modctl *fbtp_ctl; | |
| 60 | int fbtp_loadcnt; | |
| 2d21ac55 A |
61 | struct fbt_probe *fbtp_next; |
| 62 | } fbt_probe_t; | |
| 63 | ||
| 64 | extern int dtrace_invop(uintptr_t, uintptr_t *, uintptr_t); | |
| 65 | extern int fbt_invop(uintptr_t, uintptr_t *, uintptr_t); | |
| 66 | extern void fbt_provide_module(void *, struct modctl *); | |
| 6d2010ae | 67 | extern int fbt_enable (void *arg, dtrace_id_t id, void *parg); |
| 5ba3f43e | 68 | |
| cb323159 A |
69 | extern bool fbt_module_excluded(struct modctl*); |
| 70 | extern bool fbt_excluded(const char *); | |
| 5ba3f43e | 71 | |
| cb323159 | 72 | extern void fbt_blacklist_init(void); |
| d9a64523 | 73 | extern void fbt_provide_probe(struct modctl *ctl, const char *modname, const char *name, machine_inst_t *instr, machine_inst_t *limit); |
| 2d21ac55 | 74 | #endif /* _FBT_H */ |