1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2015-2022 Dmitry Chagin <dchagin@freeBSD.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30#include "linux_assym.h" /* system definitions */ 31#include <machine/asmacros.h> /* miscellaneous asm macros */ 32 33#include <amd64/linux/linux_syscall.h> /* system call numbers */ 34 35 .data 36 37 .globl linux_platform 38linux_platform: 39 .asciz "x86_64" 40 41 .text 42 43ENTRY(linux_rt_sigcode) 44 .cfi_startproc 45 .cfi_signal_frame 46 .cfi_def_cfa %rsp, LINUX_RT_SIGF_SC 47 .cfi_offset %r8, L_SC_R8 48 .cfi_offset %r9, L_SC_R9 49 .cfi_offset %r10, L_SC_R10 50 .cfi_offset %r11, L_SC_R11 51 .cfi_offset %r12, L_SC_R12 52 .cfi_offset %r13, L_SC_R13 53 .cfi_offset %r14, L_SC_R14 54 .cfi_offset %r15, L_SC_R15 55 .cfi_offset %rdi, L_SC_RDI 56 .cfi_offset %rsi, L_SC_RSI 57 .cfi_offset %rbp, L_SC_RBP 58 .cfi_offset %rbx, L_SC_RBX 59 .cfi_offset %rdx, L_SC_RDX 60 .cfi_offset %rax, L_SC_RAX 61 .cfi_offset %rcx, L_SC_RCX 62 .cfi_offset %rip, L_SC_RIP 63 .cfi_offset 49, L_SC_RFLAGS 64 .cfi_offset %cs, L_SC_CS 65 .cfi_offset %rsp, L_SC_RSP 66 67 movq %rsp, %rbx /* rt_sigframe for rt_sigreturn */ 68 call *%rcx /* call signal handler */ 69 movq $LINUX_SYS_linux_rt_sigreturn, %rax 70 syscall 710: hlt 72 jmp 0b 73 .cfi_endproc 74END(linux_rt_sigcode) 75 76#if 0 77 .section .note.Linux, "a",@note 78 .long 2f - 1f /* namesz */ 79 .balign 4 80 .long 4f - 3f /* descsz */ 81 .long 0 821: 83 .asciz "Linux" 842: 85 .balign 4 863: 87 .long LINUX_VERSION_CODE 884: 89 .balign 4 90 .previous 91#endif 92