| | 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 | |
| | 32 | #if defined (__x86_64__) |
| | 33 | typedef uint8_t machine_inst_t; |
| | 34 | #elif defined(__arm__) |
| | 35 | typedef uint16_t machine_inst_t; |
| | 36 | #elif defined(__arm64__) |
| | 37 | typedef uint32_t machine_inst_t; |
| | 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; |
| | 50 | machine_inst_t fbtp_currentval; |
| | 51 | uintptr_t fbtp_roffset; |
| | 52 | dtrace_id_t fbtp_id; |
| | 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 | */ |
| | 58 | char fbtp_name[MAX_FBTP_NAME_CHARS]; |
| | 59 | struct modctl *fbtp_ctl; |
| | 60 | int fbtp_loadcnt; |
| | 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 *); |
| | 67 | extern int fbt_enable (void *arg, dtrace_id_t id, void *parg); |
| | 68 | |
| | 69 | extern int fbt_module_excluded(struct modctl*); |
| | 70 | extern int fbt_excluded(const char *); |
| | 71 | |
| | 72 | extern void fbt_provide_probe(struct modctl *ctl, uintptr_t instr_low, uintptr_t instr_high, char *modname, char* symbol_name, machine_inst_t* symbol_start); |
| | 73 | |
| | 74 | extern void fbt_provide_module_kernel_syms(struct modctl *ctl); |
| | 75 | #endif /* _FBT_H */ |
projects / apple / xnu.git / blame_incremental