| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * (C) 2017 Theobroma Systems Design und Consulting GmbH |
| */ |
| |
| #include <config.h> |
| #include <asm/macro.h> |
| #include <linux/linkage.h> |
| |
| .pushsection .text.setjmp, "ax" |
| ENTRY(setjmp) |
| /* Preserve all callee-saved registers and the SP */ |
| stp x19, x20, [x0,#0] |
| stp x21, x22, [x0,#16] |
| stp x23, x24, [x0,#32] |
| stp x25, x26, [x0,#48] |
| stp x27, x28, [x0,#64] |
| stp x29, x30, [x0,#80] |
| mov x2, sp |
| str x2, [x0, #96] |
| mov x0, #0 |
| ret |
| ENDPROC(setjmp) |
| .popsection |
| |
| .pushsection .text.longjmp, "ax" |
| ENTRY(longjmp) |
| ldp x19, x20, [x0,#0] |
| ldp x21, x22, [x0,#16] |
| ldp x23, x24, [x0,#32] |
| ldp x25, x26, [x0,#48] |
| ldp x27, x28, [x0,#64] |
| ldp x29, x30, [x0,#80] |
| ldr x2, [x0,#96] |
| mov sp, x2 |
| /* Move the return value in place, but return 1 if passed 0. */ |
| adds x0, xzr, x1 |
| csinc x0, x0, xzr, ne |
| ret |
| ENDPROC(longjmp) |
| .popsection |
