mirror of
https://github.com/openmv/openmv.git
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104 lines
3.4 KiB
C
104 lines
3.4 KiB
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2025 OpenMV, LLC.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* OpenMV code profiler.
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*/
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#ifndef __OMV_PROFILER_H__
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#define __OMV_PROFILER_H__
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#if OMV_PROFILER_ENABLE
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#include <stdio.h>
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#include "py/mphal.h"
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#if __PMU_PRESENT
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#include "pmu_armv8.h"
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#endif
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#ifndef __cplusplus
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#include "common/mutex.h"
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#endif
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#include "common/omv_common.h"
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#ifndef __PMU_NUM_EVENTCNT
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#define __PMU_NUM_EVENTCNT 0
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#endif
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// Must be a power of 2
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#ifndef OMV_PROFILER_HASH_SIZE
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#define OMV_PROFILER_HASH_SIZE 256
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#endif
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#ifndef OMV_PROFILER_STACK_DEPTH
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#define OMV_PROFILER_STACK_DEPTH 32
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#endif
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typedef enum {
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OMV_PROFILER_INCLUSIVE = 0,
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OMV_PROFILER_EXCLUSIVE = 1,
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} omv_profiler_mode_t;
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// Profile record structure
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typedef struct __attribute__((packed)) _prof_data {
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void *func_addr; // Function address
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void *call_addr; // Caller address
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uint32_t call_count; // Number of times called
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uint32_t min_ticks; // Minimum execution time
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uint32_t max_ticks; // Maximum execution time
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uint64_t total_ticks; // Total time in ticks
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uint64_t total_cycles; // Total CPU cycles
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#if __PMU_PRESENT
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uint64_t total_events[__PMU_NUM_EVENTCNT];
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#endif
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struct _prof_data *next; // Next in hash collision chain
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} omv_profiler_data_t;
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OMV_ATTR_NO_INSTRUMENT void omv_profiler_init(void);
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OMV_ATTR_NO_INSTRUMENT void omv_profiler_reset(void);
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OMV_ATTR_NO_INSTRUMENT size_t omv_profiler_get_size(void);
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OMV_ATTR_NO_INSTRUMENT const void *omv_profiler_get_data(void);
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OMV_ATTR_NO_INSTRUMENT void omv_profiler_set_mode(uint32_t mode);
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OMV_ATTR_NO_INSTRUMENT void omv_profiler_set_event(uint32_t num, uint32_t type);
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#ifndef __cplusplus
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OMV_ATTR_NO_INSTRUMENT mutex_t *omv_profiler_lock(void);
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#endif
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// Manual instrumentation macros
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#define OMV_PROFILER_ENTER(func) \
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do { \
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void *func_addr = (void*)(func); \
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void *call_addr = __builtin_return_address(0); \
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__cyg_profile_func_enter(func_addr, call_addr); \
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} while(0)
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#define OMV_PROFILER_EXIT(func) \
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do { \
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void *func_addr = (void*)(func); \
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void *call_addr = __builtin_return_address(0); \
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__cyg_profile_func_exit(func_addr, call_addr); \
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} while(0)
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#else
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// Disabled - empty macros
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#define OMV_PROFILER_ENTER(func) do {} while(0)
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#define OMV_PROFILER_EXIT(func) do {} while(0)
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#endif // OMV_PROFILER_ENABLE
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#endif // __OMV_PROFILER_H__
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