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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>
55 lines
2.2 KiB
Makefile
55 lines
2.2 KiB
Makefile
# 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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# TFLM Makefile
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ifeq ($(MICROPY_PY_ML_TFLM), 1)
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TFLM_SRC_CC = tflm_backend.cc
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$(BUILD)/lib/tflm/tflm_backend.o: CXXFLAGS = \
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$(filter-out -std=gnu99 -std=gnu11,$(CFLAGS)) \
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-std=c++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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-fmessage-length=0 \
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-fno-threadsafe-statics \
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-Wno-double-promotion \
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-Wno-float-conversion \
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-DTF_LITE_STATIC_MEMORY \
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-DTF_LITE_DISABLE_X86_NEON \
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-DKERNELS_OPTIMIZED_FOR_SPEED \
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-DTF_LITE_STRIP_ERROR_STRINGS \
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-I$(TOP_DIR)/lib/tflm/libtflm/include \
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-I$(TOP_DIR)/lib/tflm/libtflm/include/third_party \
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-I$(TOP_DIR)/lib/tflm/libtflm/include/third_party/gemmlowp \
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-I$(TOP_DIR)/lib/tflm/libtflm/include/third_party/flatbuffers/include \
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-I$(TOP_DIR)/lib/tflm/libtflm/include/third_party/ethos_u_core_driver/include
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OMV_CFLAGS += -I$(TOP_DIR)/lib/tflm/libtflm/include
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OMV_CFLAGS += -I$(TOP_DIR)/lib/tflm/libtflm/include/third_party/ethos_u_core_driver/include
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OMV_FIRM_OBJ += $(addprefix $(BUILD)/lib/tflm/, $(TFLM_SRC_CC:.cc=.o))
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endif
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