projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 9a55fb17 | 1 | /* Examine __jmp_buf for unwinding frames. m68k version. |
| 568035b7 | 2 | Copyright (C) 2006-2013 Free Software Foundation, Inc. |
| 9a55fb17 RM |
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 | |
| ab84e3ff PE |
16 | License along with the GNU C Library. If not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| 9a55fb17 RM |
18 | |
| 19 | #include <setjmp.h> | |
| 42ae1878 MK |
20 | #include <stdint.h> |
| 21 | #include <unwind.h> | |
| 9a55fb17 RM |
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 ((jmpbuf)->__sp)) | |
| 42ae1878 MK |
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 = 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) |