| | 1 | /* |
| | 2 | * Copyright (c) 2014 Apple 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 _SYS_STACKSHOT_H |
| | 30 | #define _SYS_STACKSHOT_H |
| | 31 | |
| | 32 | #include <stdint.h> |
| | 33 | |
| | 34 | #define STACKSHOT_CONFIG_TYPE 1 |
| | 35 | |
| | 36 | typedef struct stackshot_config { |
| | 37 | /* Input options */ |
| | 38 | int sc_pid; /* PID to trace, or -1 for the entire system */ |
| | 39 | uint32_t sc_flags; /* Stackshot flags */ |
| | 40 | uint64_t sc_delta_timestamp; /* Retrieve a delta stackshot of system state that has changed since this time */ |
| | 41 | |
| | 42 | /* Stackshot results */ |
| | 43 | uint64_t sc_buffer; /* Pointer to stackshot buffer */ |
| | 44 | uint32_t sc_size; /* Length of the stackshot buffer */ |
| | 45 | |
| | 46 | /* Internals */ |
| | 47 | uint64_t sc_out_buffer_addr; /* Location where the kernel should copy the address of the newly mapped buffer in user space */ |
| | 48 | uint64_t sc_out_size_addr; /* Location where the kernel should copy the size of the stackshot buffer */ |
| | 49 | } stackshot_config_t; |
| | 50 | |
| | 51 | #ifndef KERNEL |
| | 52 | |
| | 53 | stackshot_config_t * stackshot_config_create(void); |
| | 54 | int stackshot_config_set_pid(stackshot_config_t * stackshot_config, int pid); |
| | 55 | int stackshot_config_set_flags(stackshot_config_t * stackshot_config, uint32_t flags); |
| | 56 | int stackshot_capture_with_config(stackshot_config_t * stackshot_config); |
| | 57 | void * stackshot_config_get_stackshot_buffer(stackshot_config_t * stackshot_config); |
| | 58 | uint32_t stackshot_config_get_stackshot_size(stackshot_config_t * stackshot_config); |
| | 59 | int stackshot_config_set_size_hint(stackshot_config_t * stackshot_config, uint32_t suggested_size); |
| | 60 | int stackshot_config_set_delta_timestamp(stackshot_config_t * stackshot_config, uint64_t delta_timestamp); |
| | 61 | int stackshot_config_dealloc_buffer(stackshot_config_t * stackshot_config); |
| | 62 | int stackshot_config_dealloc(stackshot_config_t * stackshot_config); |
| | 63 | |
| | 64 | #endif /* KERNEL */ |
| | 65 | |
| | 66 | #endif /* _SYS_STACKSHOT_H */ |
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