1 | /* strub (stack scrubbing) infrastructure. |
2 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
3 | Contributed by Alexandre Oliva <oliva@adacore.com>. |
4 | |
5 | This file is part of GCC. |
6 | |
7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free |
9 | Software Foundation; either version 3, or (at your option) any later |
10 | version. |
11 | |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
15 | for more details. |
16 | |
17 | You should have received a copy of the GNU General Public License |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ |
20 | |
21 | /* Return TRUE if CALLEE can be inlined into CALLER, as far as stack scrubbing |
22 | constraints are concerned. CALLEE doesn't have to be called directly by |
23 | CALLER, but the returned value says nothing about intervening functions. */ |
24 | extern bool strub_inlinable_to_p (cgraph_node *callee, cgraph_node *caller); |
25 | |
26 | /* Return FALSE if NODE is a strub context, and TRUE otherwise. */ |
27 | extern bool strub_splittable_p (cgraph_node *node); |
28 | |
29 | /* Locate and return the watermark_ptr parameter for FNDECL. If FNDECL is not a |
30 | strub context, return NULL. */ |
31 | extern tree strub_watermark_parm (tree fndecl); |
32 | |
33 | /* Make a function type or declaration callable. */ |
34 | extern void strub_make_callable (tree fndecl); |
35 | |
36 | /* Return zero iff ID is NOT an acceptable parameter for a user-supplied strub |
37 | attribute for a function. Otherwise, return >0 if it enables strub, <0 if it |
38 | does not. Return +/-1 if the attribute-modified type is compatible with the |
39 | type without the attribute, or +/-2 if it is not compatible. */ |
40 | extern int strub_validate_fn_attr_parm (tree id); |
41 | |
42 | /* Like comptypes, return 0 if t1 and t2 are not compatible, 1 if they are |
43 | compatible, and 2 if they are nearly compatible. Same strub mode is |
44 | compatible, interface-compatible strub modes are nearly compatible. */ |
45 | extern int strub_comptypes (tree t1, tree t2); |
46 | |