| | 1 | /* |
| | 2 | * Copyright (c) 2011 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 KPERF_CALLSTACK_H |
| | 30 | #define KPERF_CALLSTACK_H |
| | 31 | |
| | 32 | #define MAX_CALLSTACK_FRAMES (128) |
| | 33 | |
| | 34 | /* the callstack contains valid data */ |
| | 35 | #define CALLSTACK_VALID (1U << 0) |
| | 36 | /* the callstack has been deferred */ |
| | 37 | #define CALLSTACK_DEFERRED (1U << 1) |
| | 38 | /* the callstack is 64-bit */ |
| | 39 | #define CALLSTACK_64BIT (1U << 2) |
| | 40 | /* the callstack is from the kernel */ |
| | 41 | #define CALLSTACK_KERNEL (1U << 3) |
| | 42 | /* the callstack was cut off */ |
| | 43 | #define CALLSTACK_TRUNCATED (1U << 4) |
| | 44 | /* the callstack is only holding a continuation "frame" */ |
| | 45 | #define CALLSTACK_CONTINUATION (1U << 5) |
| | 46 | /* the frames field is filled with uintptr_t, not uint64_t */ |
| | 47 | #define CALLSTACK_KERNEL_WORDS (1U << 6) |
| | 48 | |
| | 49 | struct callstack { |
| | 50 | uint32_t flags; |
| | 51 | uint32_t nframes; |
| | 52 | /* WARNING this can be uintptr_t instead if CALLSTACK_KERNEL_WORDS is set */ |
| | 53 | uint64_t frames[MAX_CALLSTACK_FRAMES]; |
| | 54 | }; |
| | 55 | |
| | 56 | struct kperf_context; |
| | 57 | |
| | 58 | void kperf_kcallstack_sample(struct callstack *cs, struct kperf_context *); |
| | 59 | void kperf_kcallstack_log(struct callstack *cs); |
| | 60 | void kperf_continuation_sample(struct callstack *cs, struct kperf_context *); |
| | 61 | void kperf_backtrace_sample(struct callstack *cs, struct kperf_context *context); |
| | 62 | |
| | 63 | void kperf_ucallstack_sample(struct callstack *cs, struct kperf_context *); |
| | 64 | int kperf_ucallstack_pend(struct kperf_context *, uint32_t depth); |
| | 65 | void kperf_ucallstack_log(struct callstack *cs); |
| | 66 | |
| | 67 | #endif /* !defined(KPERF_CALLSTACK_H) */ |
projects / apple / xnu.git / blame_incremental