It would be useful to interface C functions with code written in raw assembly
to have a function attribute to make a function save and restore every used
registers, even flags register if possible.
This should not cause big problems because such special functions will still
_respect_ the ABI, but would not _expect_ the code around to be so fair.
--
Summary: Feature request: function attribute to save alla used
registers
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: a dot pignotti at sssup dot it
GCC host triplet: platform indipendent
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39341
