Verify compile time sorting of ftrace functions
configname: CONFIG_FTRACE_SORT_STARTUP_TEST
Linux Kernel Configuration
└─>Kernel hacking
└─>Tracers
└─>Verify compile time sorting of ftrace functions
In linux kernel since version 5.2 (release Date: 2019-07-07)
Sorting of the mcount_loc sections that is used to find the
where the ftrace knows where to patch functions for tracing
and other callbacks is done at compile time. But if the sort
is not done correctly, it will cause non-deterministic failures.
When this is set, the sorted sections will be verified that they
are in deed sorted and will warn if they are not.
If unsure, say N
where the ftrace knows where to patch functions for tracing
and other callbacks is done at compile time. But if the sort
is not done correctly, it will cause non-deterministic failures.
When this is set, the sorted sections will be verified that they
are in deed sorted and will warn if they are not.
If unsure, say N