openmv/modules/micropython.mk
iabdalkader e5cdccc72e common: Introduce profiling support.
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>
2025-08-24 16:57:06 +02:00

76 lines
2.6 KiB
Makefile

# SPDX-License-Identifier: MIT
#
# Copyright (C) 2013-2024 OpenMV, LLC.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
# Add OpenMV common modules.
OMV_MOD_DIR := $(USERMOD_DIR)
SRC_USERMOD += $(wildcard $(OMV_MOD_DIR)/*.c)
SRC_USERMOD_CXX += $(wildcard $(OMV_MOD_DIR)/*.cpp)
# Add OpenMV port-specific modules.
OMV_PORT_MOD_DIR := $(OMV_MOD_DIR)/../ports/$(PORT)/modules
SRC_USERMOD += $(wildcard $(OMV_PORT_MOD_DIR)/*.c)
SRC_USERMOD_CXX += $(wildcard $(OMV_PORT_MOD_DIR)/*.cpp)
# Extra module flags.
CFLAGS_USERMOD += \
-std=gnu11 \
-I$(OMV_MOD_DIR) \
-I$(OMV_PORT_MOD_DIR) \
-Wno-float-conversion
CXXFLAGS_USERMOD += \
$(CFLAGS_USERMOD) \
-std=gnu++11 \
-fno-rtti \
-fno-exceptions \
-fno-use-cxa-atexit \
-nodefaultlibs \
-fno-unwind-tables \
-fpermissive \
-fno-threadsafe-statics \
-fmessage-length=0 \
$(filter-out -std=gnu11,$(CFLAGS))
# Add CubeAI module if enabled.
ifeq ($(MICROPY_PY_CUBEAI), 1)
SRC_USERMOD += $(OMV_MOD_DIR)/../../stm32cubeai/py_st_nn.c
endif
ifeq ($(MICROPY_PY_ULAB), 1)
# NOTE: overrides USERMOD_DIR
# Workaround to build and link ulab.
USERMOD_DIR := $(USERMOD_DIR)/ulab/code
include $(USERMOD_DIR)/micropython.mk
endif
ifeq ($(DEBUG), 0)
# Use a higher optimization level for user C modules.
$(BUILD)/modules/%.o: override CFLAGS += $(USERMOD_OPT)
endif
ifeq ($(PROFILE_ENABLE), 1)
$(BUILD)/modules/py_ml.o: override CFLAGS += -finstrument-functions
$(BUILD)/modules/py_image.o: override CFLAGS += -finstrument-functions
$(BUILD)/modules/ulab/%.o: override CFLAGS += -finstrument-functions
endif