1*2befa269SBrooks DavisControl default initialization of stack variables in C and C++ code. 2*2befa269SBrooks DavisOptions other than 3*2befa269SBrooks Davis.Li none 4*2befa269SBrooks Davisrequire the Clang compiler or GCC 12.0 or later. 5*2befa269SBrooks DavisThe default value is 6*2befa269SBrooks Davis.Li none . 7*2befa269SBrooks DavisValid values are: 8*2befa269SBrooks Davis.Bl -tag -width indent 9*2befa269SBrooks Davis.It Li none 10*2befa269SBrooks DavisDo not initialize stack variables (standard C/C++ behavior). 11*2befa269SBrooks Davis.It Li pattern 12*2befa269SBrooks DavisBuild the base system or kernel with stack variables initialized to 13*2befa269SBrooks Davis.Pq compiler defined 14*2befa269SBrooks Davisdebugging patterns on function entry. 15*2befa269SBrooks Davis.It Li zero 16*2befa269SBrooks DavisBuild the base system or kernel with stack variables initialized 17*2befa269SBrooks Davisto zero on function entry. 18*2befa269SBrooks DavisThis value is converted to 19*2befa269SBrooks Davis.Li none 20*2befa269SBrooks Davisfor amd64 kernel builds due to incompatability with ifunc memset. 21*2befa269SBrooks Davis.El 22