mirror of
https://github.com/darlinghq/darling-xnu.git
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136 lines
5.1 KiB
C
136 lines
5.1 KiB
C
/*
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* Copyright (c) 2016 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#ifndef KPERF_ACTION_H
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#define KPERF_ACTION_H
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#include <mach/kern_return.h>
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#include <stdint.h>
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#include <stdbool.h>
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struct kperf_sample;
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struct kperf_usample;
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struct kperf_context;
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/* bits for defining what to do on an action */
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#define SAMPLER_TH_INFO (1U << 0)
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#define SAMPLER_TH_SNAPSHOT (1U << 1)
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#define SAMPLER_KSTACK (1U << 2)
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#define SAMPLER_USTACK (1U << 3)
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#define SAMPLER_PMC_THREAD (1U << 4)
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#define SAMPLER_PMC_CPU (1U << 5)
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#define SAMPLER_PMC_CONFIG (1U << 6)
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#define SAMPLER_MEMINFO (1U << 7)
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#define SAMPLER_TH_SCHEDULING (1U << 8)
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#define SAMPLER_TH_DISPATCH (1U << 9)
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#define SAMPLER_TK_SNAPSHOT (1U << 10)
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#define SAMPLER_SYS_MEM (1U << 11)
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#define SAMPLER_TH_INSCYC (1U << 12)
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#define SAMPLER_TK_INFO (1U << 13)
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#define SAMPLER_TASK_MASK (SAMPLER_MEMINFO | SAMPLER_TK_SNAPSHOT | \
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SAMPLER_TK_INFO)
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#define SAMPLER_THREAD_MASK (SAMPLER_TH_INFO | SAMPLER_TH_SNAPSHOT | \
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SAMPLER_KSTACK | SAMPLER_USTACK | SAMPLER_PMC_THREAD | \
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SAMPLER_TH_SCHEDULING | SAMPLER_TH_DISPATCH | SAMPLER_TH_INSCYC)
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/* flags for sample calls */
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/* pend samplers requiring copyin until AST boundary */
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#define SAMPLE_FLAG_PEND_USER (1U << 0)
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/* sample idle threads */
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#define SAMPLE_FLAG_IDLE_THREADS (1U << 1)
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/* do not sample callstacks */
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#define SAMPLE_FLAG_EMPTY_CALLSTACK (1U << 2)
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/* use the continuation as a kernel backtrace */
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#define SAMPLE_FLAG_CONTINUATION (1U << 3)
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/* sample is occurring outside of interrupt context */
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#define SAMPLE_FLAG_NON_INTERRUPT (1U << 4)
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/* sample should include system samplers */
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#define SAMPLE_FLAG_SYSTEM (1U << 5)
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/* sample should not include non-system samplers */
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#define SAMPLE_FLAG_ONLY_SYSTEM (1U << 6)
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/* sample should only include task samplers */
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#define SAMPLE_FLAG_TASK_ONLY (1U << 7)
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/* sample should only include thread samplers */
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#define SAMPLE_FLAG_THREAD_ONLY (1U << 8)
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/* Take a sample into "sbuf" using current thread "cur_thread" */
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kern_return_t kperf_sample(struct kperf_sample *sbuf,
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struct kperf_context *ctx,
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unsigned actionid,
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unsigned sample_flags);
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/*
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* Sample user space.
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*/
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void kperf_sample_user(struct kperf_usample *sbuf, struct kperf_context *ctx,
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unsigned int actionid, unsigned int sample_flags);
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/* Whether the action provided samples non-system values. */
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bool kperf_action_has_non_system(unsigned actionid);
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bool kperf_action_has_thread(unsigned int actionid);
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bool kperf_action_has_task(unsigned int actionid);
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/* return codes from taking a sample
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* either keep trigger, or something went wrong (or we're shutting down)
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* so turn off.
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*/
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#define SAMPLE_CONTINUE (0)
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#define SAMPLE_SHUTDOWN (1)
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#define SAMPLE_OFF (2)
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void kperf_action_reset(void);
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/* Interface functions */
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unsigned kperf_action_get_count(void);
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int kperf_action_set_count(unsigned count);
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int kperf_action_set_samplers(unsigned int actionid, uint32_t samplers);
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int kperf_action_get_samplers(unsigned int actionid, uint32_t *samplers_out);
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int kperf_action_set_userdata(unsigned int actionid, uint32_t userdata);
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int kperf_action_get_userdata(unsigned int actionid, uint32_t *userdata_out);
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int kperf_action_set_ucallstack_depth(unsigned int actionid, uint32_t depth);
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int kperf_action_get_ucallstack_depth(unsigned int actionid, uint32_t * depth_out);
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int kperf_action_set_kcallstack_depth(unsigned int actionid, uint32_t depth);
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int kperf_action_get_kcallstack_depth(unsigned int actionid, uint32_t * depth_out);
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int kperf_action_set_filter(unsigned int actionid, int pid);
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int kperf_action_get_filter(unsigned int actionid, int *pid_out);
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void kperf_kdebug_handler(uint32_t debugid, uintptr_t *starting_fp);
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/* whether to output tracepoints on context-switch */
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extern int kperf_kdebug_cswitch;
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int kperf_kdbg_cswitch_get(void);
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int kperf_kdbg_cswitch_set(int newval);
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#endif /* !defined(KPERF_ACTION_H) */
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