1412042e2SAndrew Turner /*- 2412042e2SAndrew Turner * Copyright (c) 2014 Andrew Turner 3412042e2SAndrew Turner * Copyright (c) 2014-2015 The FreeBSD Foundation 4412042e2SAndrew Turner * All rights reserved. 5412042e2SAndrew Turner * 6412042e2SAndrew Turner * This software was developed by Andrew Turner under 7412042e2SAndrew Turner * sponsorship from the FreeBSD Foundation. 8412042e2SAndrew Turner * 9412042e2SAndrew Turner * Redistribution and use in source and binary forms, with or without 10412042e2SAndrew Turner * modification, are permitted provided that the following conditions 11412042e2SAndrew Turner * are met: 12412042e2SAndrew Turner * 1. Redistributions of source code must retain the above copyright 13412042e2SAndrew Turner * notice, this list of conditions and the following disclaimer. 14412042e2SAndrew Turner * 2. Redistributions in binary form must reproduce the above copyright 15412042e2SAndrew Turner * notice, this list of conditions and the following disclaimer in the 16412042e2SAndrew Turner * documentation and/or other materials provided with the distribution. 17412042e2SAndrew Turner * 18412042e2SAndrew Turner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19412042e2SAndrew Turner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20412042e2SAndrew Turner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21412042e2SAndrew Turner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22412042e2SAndrew Turner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23412042e2SAndrew Turner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24412042e2SAndrew Turner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25412042e2SAndrew Turner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26412042e2SAndrew Turner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27412042e2SAndrew Turner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28412042e2SAndrew Turner * SUCH DAMAGE. 29412042e2SAndrew Turner * 30412042e2SAndrew Turner * $FreeBSD$ 31412042e2SAndrew Turner */ 32412042e2SAndrew Turner 33*d5d97bedSMike Karels #ifdef __arm__ 34*d5d97bedSMike Karels #include <arm/setjmp.h> 35*d5d97bedSMike Karels #else /* !__arm__ */ 36*d5d97bedSMike Karels 37412042e2SAndrew Turner #ifndef _MACHINE_SETJMP_H_ 38412042e2SAndrew Turner #define _MACHINE_SETJMP_H_ 39412042e2SAndrew Turner 40412042e2SAndrew Turner #include <sys/cdefs.h> 41412042e2SAndrew Turner 42412042e2SAndrew Turner /* 43412042e2SAndrew Turner * We need to store: 44412042e2SAndrew Turner * - A magic value to differentiate the buffers 45412042e2SAndrew Turner * - The stack pointer 46412042e2SAndrew Turner * - The link register 47412042e2SAndrew Turner * - 11 general purpose registers 48412042e2SAndrew Turner * - 8 floating point registers 49412042e2SAndrew Turner * - The signal mask (128 bits) 5091569f1fSAndrew Turner * i.e. 24 64-bit words, round this up to 31(+1) 128-bit words to allow for 5191569f1fSAndrew Turner * CPU extensions with larger registers and stronger alignment requirements. 52412042e2SAndrew Turner * 53412042e2SAndrew Turner * The registers to save are: r19 to r29, and d8 to d15. 54412042e2SAndrew Turner */ 5591569f1fSAndrew Turner #define _JBLEN 31 5631b89255SAndrew Turner #define _JB_SIGMASK 22 57412042e2SAndrew Turner 58412042e2SAndrew Turner /* This should only be needed in libc and may change */ 59412042e2SAndrew Turner #ifdef __ASSEMBLER__ 60412042e2SAndrew Turner #define _JB_MAGIC__SETJMP 0xfb5d25837d7ff700 61412042e2SAndrew Turner #define _JB_MAGIC_SETJMP 0xfb5d25837d7ff701 62412042e2SAndrew Turner #endif 63412042e2SAndrew Turner 64412042e2SAndrew Turner #ifndef __ASSEMBLER__ 65412042e2SAndrew Turner /* 66412042e2SAndrew Turner * jmp_buf and sigjmp_buf are encapsulated in different structs to force 67412042e2SAndrew Turner * compile-time diagnostics for mismatches. The structs are the same 68412042e2SAndrew Turner * internally to avoid some run-time errors for mismatches. 69412042e2SAndrew Turner */ 70412042e2SAndrew Turner #if __BSD_VISIBLE || __POSIX_VISIBLE || __XSI_VISIBLE 7191569f1fSAndrew Turner typedef struct _sigjmp_buf { __int128_t _sjb[_JBLEN + 1]; } sigjmp_buf[1]; 72412042e2SAndrew Turner #endif 73412042e2SAndrew Turner 7491569f1fSAndrew Turner typedef struct _jmp_buf { __int128_t _jb[_JBLEN + 1]; } jmp_buf[1]; 75412042e2SAndrew Turner #endif /* __ASSEMBLER__ */ 76412042e2SAndrew Turner 77412042e2SAndrew Turner #endif /* !_MACHINE_SETJMP_H_ */ 78*d5d97bedSMike Karels 79*d5d97bedSMike Karels #endif /* !__arm__ */ 80