diff options
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index ae65e4f..07ae66a 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -3411,6 +3411,10 @@ GCC computed the default from the values of the above macros and you will normally not need to override that default. @end defmac +@deftypefn {Target Hook} bool TARGET_STACK_CLASH_PROTECTION_FINAL_DYNAMIC_PROBE (rtx @var{residual}) +Some targets make optimistic assumptions about the state of stack probing when they emit their prologues. On such targets a probe into the end of any dynamically allocated space is likely required for safety against stack clash style attacks. Define this variable to return nonzero if such a probe is required or zero otherwise. You need not define this macro if it would always have the value zero. +@end deftypefn + @need 2000 @node Frame Registers @subsection Registers That Address the Stack Frame |