https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106422
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |hubicka at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think vfork is OK as leaf but raise is not since it can invoke a signal
handler. Citing docs:
"Note that leaf functions might indirectly run a signal handler defined
in the current compilation unit that uses static variables. Similarly,
when lazy symbol resolution is in effect, leaf functions might invoke
indirect functions whose resolver function or implementation function is
defined in the current compilation unit and uses static variables. There
is no standard-compliant way to write such a signal handler, resolver
function, or implementation function, and the best that you can do is to
remove the @code{leaf} attribute or mark all such static variables
@code{volatile}."
