75 lines
3.6 KiB
C
75 lines
3.6 KiB
C
/*
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* Copyright (c) 2014 Apple 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 _SYS_STACKSHOT_H
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#define _SYS_STACKSHOT_H
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#include <stdint.h>
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#define STACKSHOT_CONFIG_TYPE 1
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typedef struct stackshot_config {
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/* Input options */
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int sc_pid; /* PID to trace, or -1 for the entire system */
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uint64_t sc_flags; /* Stackshot flags */
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uint64_t sc_delta_timestamp; /* Retrieve a delta stackshot of system state that has changed since this time */
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/* Stackshot results */
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uint64_t sc_buffer; /* Pointer to stackshot buffer */
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uint32_t sc_size; /* Length of the stackshot buffer */
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/* Internals */
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uint64_t sc_out_buffer_addr; /* Location where the kernel should copy the address of the newly mapped buffer in user space */
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uint64_t sc_out_size_addr; /* Location where the kernel should copy the size of the stackshot buffer */
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uint64_t sc_pagetable_mask; /* Mask of page table levels to dump, must pass STACKSHOT_PAGE_TABLES */
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} stackshot_config_t;
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typedef struct stackshot_stats {
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uint64_t ss_last_start; /* mach_absolute_time of last start */
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uint64_t ss_last_end; /* mach_absolute_time of last end */
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uint64_t ss_count; /* count of stackshots taken */
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uint64_t ss_duration; /* sum(mach_absolute_time) of taken stackshots */
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} stackshot_stats_t;
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#ifndef KERNEL
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stackshot_config_t * stackshot_config_create(void);
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int stackshot_config_set_pid(stackshot_config_t * stackshot_config, int pid);
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int stackshot_config_set_flags(stackshot_config_t * stackshot_config, uint64_t flags);
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int stackshot_capture_with_config(stackshot_config_t * stackshot_config);
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void * stackshot_config_get_stackshot_buffer(stackshot_config_t * stackshot_config);
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uint32_t stackshot_config_get_stackshot_size(stackshot_config_t * stackshot_config);
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int stackshot_config_set_size_hint(stackshot_config_t * stackshot_config, uint32_t suggested_size);
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int stackshot_config_set_delta_timestamp(stackshot_config_t * stackshot_config, uint64_t delta_timestamp);
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int stackshot_config_set_pagetable_mask(stackshot_config_t * stackshot_config, uint32_t mask);
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int stackshot_config_dealloc_buffer(stackshot_config_t * stackshot_config);
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int stackshot_config_dealloc(stackshot_config_t * stackshot_config);
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#endif /* ! KERNEL */
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#endif /* _SYS_STACKSHOT_H */
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