| /* Copyright (C) 1997-2016 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> |
| #include <stap-probe.h> |
| |
| /* Keep traditional entry points in with sigsetjmp(). */ |
| ENTRY (setjmp) |
| mov x1, #1 |
| b 1f |
| END (setjmp) |
| |
| ENTRY (_setjmp) |
| mov x1, #0 |
| b 1f |
| END (_setjmp) |
| libc_hidden_def (_setjmp) |
| |
| ENTRY (__sigsetjmp) |
| |
| 1: |
| stp x19, x20, [x0, #JB_X19<<3] |
| stp x21, x22, [x0, #JB_X21<<3] |
| stp x23, x24, [x0, #JB_X23<<3] |
| stp x25, x26, [x0, #JB_X25<<3] |
| stp x27, x28, [x0, #JB_X27<<3] |
| |
| #ifdef PTR_MANGLE |
| PTR_MANGLE (x4, x30, x3, x2) |
| stp x29, x4, [x0, #JB_X29<<3] |
| #else |
| stp x29, x30, [x0, #JB_X29<<3] |
| #endif |
| /* setjmp probe takes 3 arguments, address of jump buffer |
| first argument (8@x0), return value second argument (-4@x1), |
| and target address (8@x30), respectively. */ |
| LIBC_PROBE (setjmp, 3, 8@x0, -4@x1, 8@x30) |
| stp d8, d9, [x0, #JB_D8<<3] |
| stp d10, d11, [x0, #JB_D10<<3] |
| stp d12, d13, [x0, #JB_D12<<3] |
| stp d14, d15, [x0, #JB_D14<<3] |
| #ifdef PTR_MANGLE |
| mov x4, sp |
| PTR_MANGLE (x5, x4, x3, x2) |
| str x5, [x0, #JB_SP<<3] |
| #else |
| mov x2, sp |
| str x2, [x0, #JB_SP<<3] |
| #endif |
| #if IS_IN (rtld) |
| /* In ld.so we never save the signal mask */ |
| mov w0, #0 |
| RET |
| #else |
| b C_SYMBOL_NAME(__sigjmp_save) |
| #endif |
| END (__sigsetjmp) |
| hidden_def (__sigsetjmp) |