############################################################################
#
#   Copyright (c) 2019 PX4 Development Team. All rights reserved.
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# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
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# 1. Redistributions of source code must retain the above copyright
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#    the documentation and/or other materials provided with the
#    distribution.
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# Poor man's profiler
include(ExternalProject)
ExternalProject_Add(FlameGraph
	GIT_REPOSITORY "https://github.com/brendangregg/FlameGraph.git"
	UPDATE_COMMAND ""
	PATCH_COMMAND ""
	CONFIGURE_COMMAND ""
	BUILD_COMMAND ""
	INSTALL_COMMAND ""
	EXCLUDE_FROM_ALL 1
	)

add_custom_target(profile
	COMMAND ${CMAKE_COMMAND} -E env PATH="${PX4_BINARY_DIR}/external/Source/FlameGraph:$ENV{PATH}"
		${CMAKE_CURRENT_SOURCE_DIR}/Debug/poor-mans-profiler.sh --elf=$<TARGET_FILE:px4> --nsamples=10000
	DEPENDS px4 ${CMAKE_CURRENT_SOURCE_DIR}/Debug/poor-mans-profiler.sh FlameGraph
	USES_TERMINAL
	WORKING_DIRECTORY ${PX4_BINARY_DIR}
	)