/* SPDX-License-Identifier: GPL-2.0 */
/*
 * AArch32 sigreturn code.
 * Based on the kuser helpers in arch/arm/kernel/entry-armv.S.
 *
 * Copyright (C) 2005-2011 Nicolas Pitre <nico@fluxnic.net>
 * Copyright (C) 2012-2018 ARM Ltd.
 *
 * For ARM syscalls, the syscall number has to be loaded into r7.
 * We do not support an OABI userspace.
 *
 * For Thumb syscalls, we also pass the syscall number via r7. We therefore
 * need two 16-bit instructions.
 */

#include <asm/unistd_compat_32.h>

        .section .rodata
        .globl __aarch32_sigret_code_start
__aarch32_sigret_code_start:

        /*
         * ARM Code
         */
        .byte   __NR_compat32_sigreturn, 0x70, 0xa0, 0xe3       // mov  r7, #__NR_compat32_sigreturn
        .byte   __NR_compat32_sigreturn, 0x00, 0x00, 0xef       // svc  #__NR_compat32_sigreturn

        /*
         * Thumb code
         */
        .byte   __NR_compat32_sigreturn, 0x27                   // svc  #__NR_compat32_sigreturn
        .byte   __NR_compat32_sigreturn, 0xdf                   // mov  r7, #__NR_compat32_sigreturn

        /*
         * ARM code
         */
        .byte   __NR_compat32_rt_sigreturn, 0x70, 0xa0, 0xe3    // mov  r7, #__NR_compat32_rt_sigreturn
        .byte   __NR_compat32_rt_sigreturn, 0x00, 0x00, 0xef    // svc  #__NR_compat32_rt_sigreturn

        /*
         * Thumb code
         */
        .byte   __NR_compat32_rt_sigreturn, 0x27                // svc  #__NR_compat32_rt_sigreturn
        .byte   __NR_compat32_rt_sigreturn, 0xdf                // mov  r7, #__NR_compat32_rt_sigreturn

        .globl __aarch32_sigret_code_end
__aarch32_sigret_code_end: