/* * Copyright (c) 2011-2019 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #ifndef KPERF_CALLSTACK_H #define KPERF_CALLSTACK_H #define MAX_KCALLSTACK_FRAMES (128) #define MAX_UCALLSTACK_FRAMES (256) /* the callstack contains valid data */ #define CALLSTACK_VALID (1U << 0) /* the callstack has been deferred */ #define CALLSTACK_DEFERRED (1U << 1) /* the callstack is 64-bit */ #define CALLSTACK_64BIT (1U << 2) /* the callstack is from the kernel */ #define CALLSTACK_KERNEL (1U << 3) /* the callstack was cut off */ #define CALLSTACK_TRUNCATED (1U << 4) /* the callstack is only holding a continuation "frame" */ #define CALLSTACK_CONTINUATION (1U << 5) /* the frames field is filled with uintptr_t, not uint64_t */ #define CALLSTACK_KERNEL_WORDS (1U << 6) /* the frames come from a translated task */ #define CALLSTACK_TRANSLATED (1U << 7) /* the last frame could be the real PC */ #define CALLSTACK_FIXUP_PC (1U << 8) struct kp_ucallstack { uint32_t kpuc_flags; uint32_t kpuc_nframes; uintptr_t kpuc_frames[MAX_UCALLSTACK_FRAMES]; }; struct kp_kcallstack { uint32_t kpkc_flags; uint32_t kpkc_nframes; union { uintptr_t kpkc_word_frames[MAX_KCALLSTACK_FRAMES]; uint64_t kpkc_frames[MAX_KCALLSTACK_FRAMES]; }; }; struct kperf_context; void kperf_kcallstack_sample(struct kp_kcallstack *cs, struct kperf_context *); void kperf_kcallstack_log(struct kp_kcallstack *cs); void kperf_continuation_sample(struct kp_kcallstack *cs, struct kperf_context *); void kperf_backtrace_sample(struct kp_kcallstack *cs, struct kperf_context *context); void kperf_ucallstack_sample(struct kp_ucallstack *cs, struct kperf_context *); int kperf_ucallstack_pend(struct kperf_context *, uint32_t depth, unsigned int actionid); void kperf_ucallstack_log(struct kp_ucallstack *cs); #endif /* !defined(KPERF_CALLSTACK_H) */