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kernel profiling support

Jacob Lorentzon requested to merge 4lDO2/kernel:profiling into master

Usage: enable the profiling kernel Cargo feature, change -smp 4 to -smp 5 and -m 2048 to -m 8192 in qemu, enable the profiled cookbook package, and change 00_base to run profiled. Once the recording is complete, when the system is shut down, run kprofiling /path/to/redoxfs/root/profiling.txt <(nm -CS /path/to/kernel) <options, _ works> <cpu ghz>.

Edited by Jacob Lorentzon

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