zephyr/subsys/profiling/CMakeLists.txt

# Copyright (c) 2023 KNS Group LLC (YADRO)
#
# SPDX-License-Identifier: Apache-2.0

add_subdirectory_ifdef(CONFIG_PROFILING_PERF perf)
profiling: Add perf tool Add profiling subsystem. Add perf util based on periodic stack unwinding. Perf from Linux was taken as a reference. The operation of module is based on frame pointer usage and saving registers during interruption handling. The unwinding function stay in timer as expiry functioin so is called during interruption handling. Thus the function have access to saved registers (program counter and frame pointer in particular) of the current thread and use it to unwind the thread stack. Timer starting and results printing function are made as shell commands for conveniency. Originally-by: Yonatan Goldschmidt <yon.goldschmidt@gmail.com> Signed-off-by: Mikhail Kushnerov <m.kushnerov@yadro.com> 2024-05-23 18:05:17 +08:00			`# Copyright (c) 2023 KNS Group LLC (YADRO)`
			`#`
			`# SPDX-License-Identifier: Apache-2.0`

			`add_subdirectory_ifdef(CONFIG_PROFILING_PERF perf)`