| /* Copyright (C) 1997-2014 Free Software Foundation, Inc. |
| |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public License as |
| published by the Free Software Foundation; either version 2.1 of the |
| License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sysdep.h> |
| #include <jmpbuf-offsets.h> |
| |
| /* __longjmp(jmpbuf, val) */ |
| |
| ENTRY (__longjmp) |
| cfi_def_cfa(x0, 0) |
| cfi_offset(x19, JB_X19<<3) |
| cfi_offset(x20, JB_X20<<3) |
| cfi_offset(x21, JB_X21<<3) |
| cfi_offset(x22, JB_X22<<3) |
| cfi_offset(x23, JB_X23<<3) |
| cfi_offset(x24, JB_X24<<3) |
| cfi_offset(x25, JB_X25<<3) |
| cfi_offset(x26, JB_X26<<3) |
| cfi_offset(x27, JB_X27<<3) |
| cfi_offset(x28, JB_X28<<3) |
| cfi_offset(x29, JB_X29<<3) |
| cfi_offset(x30, JB_LR<<3) |
| |
| cfi_offset( d8, JB_D8<<3) |
| cfi_offset( d9, JB_D9<<3) |
| cfi_offset(d10, JB_D10<<3) |
| cfi_offset(d11, JB_D11<<3) |
| cfi_offset(d12, JB_D12<<3) |
| cfi_offset(d13, JB_D13<<3) |
| cfi_offset(d14, JB_D14<<3) |
| cfi_offset(d15, JB_D15<<3) |
| |
| ldp x19, x20, [x0, #JB_X19<<3] |
| ldp x21, x22, [x0, #JB_X21<<3] |
| ldp x23, x24, [x0, #JB_X23<<3] |
| ldp x25, x26, [x0, #JB_X25<<3] |
| ldp x27, x28, [x0, #JB_X27<<3] |
| #ifdef PTR_DEMANGLE |
| ldp x29, x4, [x0, #JB_X29<<3] |
| PTR_DEMANGLE (x30, x4, x3, x2) |
| #else |
| ldp x29, x30, [x0, #JB_X29<<3] |
| #endif |
| ldp d8, d9, [x0, #JB_D8<<3] |
| ldp d10, d11, [x0, #JB_D10<<3] |
| ldp d12, d13, [x0, #JB_D12<<3] |
| ldp d14, d15, [x0, #JB_D14<<3] |
| |
| /* Originally this was implemented with a series of |
| .cfi_restore() directives. |
| |
| The theory was that cfi_restore should revert to previous |
| frame value is the same as the current value. In practice |
| this doesn't work, even after cfi_restore() gdb continues |
| to try to recover a previous frame value offset from x0, |
| which gets stuffed after a few more instructions. The |
| cfi_same_value() mechanism appears to work fine. */ |
| |
| cfi_same_value(x19) |
| cfi_same_value(x20) |
| cfi_same_value(x21) |
| cfi_same_value(x22) |
| cfi_same_value(x23) |
| cfi_same_value(x24) |
| cfi_same_value(x25) |
| cfi_same_value(x26) |
| cfi_same_value(x27) |
| cfi_same_value(x28) |
| cfi_same_value(x29) |
| cfi_same_value(x30) |
| cfi_same_value(d8) |
| cfi_same_value(d9) |
| cfi_same_value(d10) |
| cfi_same_value(d11) |
| cfi_same_value(d12) |
| cfi_same_value(d13) |
| cfi_same_value(d14) |
| cfi_same_value(d15) |
| #ifdef PTR_DEMANGLE |
| ldr x4, [x0, #JB_SP<<3] |
| PTR_DEMANGLE (x5, x4, x3, x2) |
| #else |
| ldr x5, [x0, #JB_SP<<3] |
| #endif |
| mov sp, x5 |
| cmp x1, #0 |
| mov x0, #1 |
| csel x0, x1, x0, ne |
| /* Use br instead of ret because ret is guaranteed to mispredict */ |
| br x30 |
| END (__longjmp) |
