1/* 2 * Sigreturn trampoline for returning from a signal when the SA_RESTORER 3 * flag is not set. 4 * 5 * Copyright (C) 2012 ARM Limited 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. 18 * 19 * Author: Will Deacon <will.deacon@arm.com> 20 */ 21 22#include <linux/linkage.h> 23#include <asm/unistd.h> 24 25 .text 26 27 nop 28ENTRY(__kernel_rt_sigreturn) 29 .cfi_startproc 30 .cfi_signal_frame 31 .cfi_def_cfa x29, 0 32 .cfi_offset x29, 0 * 8 33 .cfi_offset x30, 1 * 8 34 mov x8, #__NR_rt_sigreturn 35 svc #0 36 .cfi_endproc 37ENDPROC(__kernel_rt_sigreturn) 38