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This adds a simple code profiler that leverages both SysTick and the Performance Monitoring Unit (PMU) available on Armv8.1-M cores. SysTick provides a simple high-resolution timer source, while the PMU offers a cycle counter and multiple configurable event counters that can track low-level performance metrics such as cache misses, pipeline stalls, etc... See the Armv8.1-M Performance Monitoring User Guide for additional details. Function-level instrumentation is enabled using -finstrument-functions on select files to automatically record statistics on entry/exit. Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
76 lines
2.6 KiB
Makefile
76 lines
2.6 KiB
Makefile
# SPDX-License-Identifier: MIT
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#
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# Copyright (C) 2013-2024 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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# Add OpenMV common modules.
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OMV_MOD_DIR := $(USERMOD_DIR)
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SRC_USERMOD += $(wildcard $(OMV_MOD_DIR)/*.c)
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SRC_USERMOD_CXX += $(wildcard $(OMV_MOD_DIR)/*.cpp)
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# Add OpenMV port-specific modules.
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OMV_PORT_MOD_DIR := $(OMV_MOD_DIR)/../ports/$(PORT)/modules
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SRC_USERMOD += $(wildcard $(OMV_PORT_MOD_DIR)/*.c)
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SRC_USERMOD_CXX += $(wildcard $(OMV_PORT_MOD_DIR)/*.cpp)
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# Extra module flags.
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CFLAGS_USERMOD += \
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-std=gnu11 \
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-I$(OMV_MOD_DIR) \
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-I$(OMV_PORT_MOD_DIR) \
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-Wno-float-conversion
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CXXFLAGS_USERMOD += \
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$(CFLAGS_USERMOD) \
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-std=gnu++11 \
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-fno-rtti \
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-fno-exceptions \
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-fno-use-cxa-atexit \
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-nodefaultlibs \
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-fno-unwind-tables \
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-fpermissive \
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-fno-threadsafe-statics \
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-fmessage-length=0 \
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$(filter-out -std=gnu11,$(CFLAGS))
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# Add CubeAI module if enabled.
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ifeq ($(MICROPY_PY_CUBEAI), 1)
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SRC_USERMOD += $(OMV_MOD_DIR)/../../stm32cubeai/py_st_nn.c
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endif
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ifeq ($(MICROPY_PY_ULAB), 1)
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# NOTE: overrides USERMOD_DIR
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# Workaround to build and link ulab.
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USERMOD_DIR := $(USERMOD_DIR)/ulab/code
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include $(USERMOD_DIR)/micropython.mk
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endif
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ifeq ($(DEBUG), 0)
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# Use a higher optimization level for user C modules.
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$(BUILD)/modules/%.o: override CFLAGS += $(USERMOD_OPT)
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endif
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ifeq ($(PROFILE_ENABLE), 1)
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$(BUILD)/modules/py_ml.o: override CFLAGS += -finstrument-functions
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$(BUILD)/modules/py_image.o: override CFLAGS += -finstrument-functions
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$(BUILD)/modules/ulab/%.o: override CFLAGS += -finstrument-functions
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endif
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