| /*- |
| * Copyright (c) 2014 Andrew Turner |
| * Copyright (c) 2014-2015 The FreeBSD Foundation |
| * All rights reserved. |
| * |
| * Portions of this software were developed by Andrew Turner |
| * under sponsorship from the FreeBSD Foundation |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| */ |
| |
| |
| #ifdef __aarch64__ |
| |
| #define ENTRY(sym) \ |
| .text; \ |
| .globl sym; \ |
| .align 2; \ |
| .type sym,#function; \ |
| sym: |
| |
| #define END(sym) \ |
| .size sym, . - sym |
| |
| |
| ENTRY(setjmp) |
| /* Store the stack pointer */ |
| mov x8, sp |
| str x8, [x0], #8 |
| |
| /* Store the general purpose registers and lr */ |
| stp x19, x20, [x0], #16 |
| stp x21, x22, [x0], #16 |
| stp x23, x24, [x0], #16 |
| stp x25, x26, [x0], #16 |
| stp x27, x28, [x0], #16 |
| stp x29, x30, [x0], #16 |
| |
| /* Return value */ |
| mov x0, #0 |
| ret |
| END(setjmp) |
| |
| ENTRY(longjmp) |
| /* Restore the stack pointer */ |
| ldr x8, [x0], #8 |
| mov sp, x8 |
| |
| /* Restore the general purpose registers and lr */ |
| ldp x19, x20, [x0], #16 |
| ldp x21, x22, [x0], #16 |
| ldp x23, x24, [x0], #16 |
| ldp x25, x26, [x0], #16 |
| ldp x27, x28, [x0], #16 |
| ldp x29, x30, [x0], #16 |
| |
| /* Load the return value */ |
| mov x0, x1 |
| ret |
| END(longjmp) |
| |
| #ifdef __ELF__ |
| .section .note.GNU-stack,"",%progbits |
| #endif |
| |
| #endif /* __aarch64__ */ |