Warning: This file is not a C or C++ file. It does not have highlighting.
1 | /* Examine __jmp_buf for unwinding frames. m68k version. |
---|---|
2 | Copyright (C) 2006-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library. If not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <setjmp.h> |
20 | #include <stdint.h> |
21 | #include <unwind.h> |
22 | |
23 | /* Test if longjmp to JMPBUF would unwind the frame |
24 | containing a local variable at ADDRESS. */ |
25 | #define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \ |
26 | ((void *) (address) < (void *) demangle ((uintptr_t) (jmpbuf)->__sp)) |
27 | |
28 | #define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \ |
29 | _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj) |
30 | |
31 | static inline uintptr_t __attribute__ ((unused)) |
32 | _jmpbuf_sp (__jmp_buf regs) |
33 | { |
34 | uintptr_t sp = (uintptr_t) regs[0].__sp; |
35 | #ifdef PTR_DEMANGLE |
36 | PTR_DEMANGLE (sp); |
37 | #endif |
38 | return sp; |
39 | } |
40 | |
41 | #define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \ |
42 | ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj)) |
43 | |
44 | /* We use the normal longjmp for unwinding. */ |
45 | #define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val) |
46 |
Warning: This file is not a C or C++ file. It does not have highlighting.