Update documents for fcf-protection=

After r14-2692-g1c6231c05bdcca, the option is defined as EnumSet and
-fcf-protection=branch won't unset any others bits since they're in
different groups. So to override -fcf-protection, an explicit
-fcf-protection=none needs to be added and then with
-fcf-protection=XXX

gcc/ChangeLog:

	PR target/113039
	* doc/invoke.texi (fcf-protection=): Update documents.
This commit is contained in:
liuhongt 2024-01-08 14:04:38 +08:00
parent d79629b316
commit 75ed46558a

View file

@ -17734,6 +17734,9 @@ function. The value @code{full} is an alias for specifying both
@code{branch} and @code{return}. The value @code{none} turns off
instrumentation.
To override @option{-fcf-protection}, @option{-fcf-protection=none}
needs to be added and then with @option{-fcf-protection=xxx}.
The value @code{check} is used for the final link with link-time
optimization (LTO). An error is issued if LTO object files are
compiled with different @option{-fcf-protection} values. The