1412042e2SAndrew Turner /*- 2412042e2SAndrew Turner * Copyright (c) 2014 Andrew Turner 3412042e2SAndrew Turner * All rights reserved. 4412042e2SAndrew Turner * 5412042e2SAndrew Turner * Redistribution and use in source and binary forms, with or without 6412042e2SAndrew Turner * modification, are permitted provided that the following conditions 7412042e2SAndrew Turner * are met: 8412042e2SAndrew Turner * 1. Redistributions of source code must retain the above copyright 9412042e2SAndrew Turner * notice, this list of conditions and the following disclaimer. 10412042e2SAndrew Turner * 2. Redistributions in binary form must reproduce the above copyright 11412042e2SAndrew Turner * notice, this list of conditions and the following disclaimer in the 12412042e2SAndrew Turner * documentation and/or other materials provided with the distribution. 13412042e2SAndrew Turner * 14412042e2SAndrew Turner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15412042e2SAndrew Turner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16412042e2SAndrew Turner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17412042e2SAndrew Turner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18412042e2SAndrew Turner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19412042e2SAndrew Turner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20412042e2SAndrew Turner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21412042e2SAndrew Turner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22412042e2SAndrew Turner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23412042e2SAndrew Turner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24412042e2SAndrew Turner * SUCH DAMAGE. 25412042e2SAndrew Turner * 26412042e2SAndrew Turner * $FreeBSD$ 27412042e2SAndrew Turner */ 28412042e2SAndrew Turner 29412042e2SAndrew Turner #ifndef _MACHINE_ASM_H_ 30412042e2SAndrew Turner #define _MACHINE_ASM_H_ 31412042e2SAndrew Turner 32412042e2SAndrew Turner #undef __FBSDID 33412042e2SAndrew Turner #if !defined(lint) && !defined(STRIP_FBSDID) 34412042e2SAndrew Turner #define __FBSDID(s) .ident s 35412042e2SAndrew Turner #else 36412042e2SAndrew Turner #define __FBSDID(s) /* nothing */ 37412042e2SAndrew Turner #endif 38412042e2SAndrew Turner 39412042e2SAndrew Turner #define _C_LABEL(x) x 40412042e2SAndrew Turner 41412042e2SAndrew Turner #define ENTRY(sym) \ 424dd6ed5cSAndrew Turner .text; .globl sym; .align 2; .type sym,#function; sym: 43412042e2SAndrew Turner #define EENTRY(sym) \ 44412042e2SAndrew Turner .globl sym; sym: 45412042e2SAndrew Turner #define END(sym) .size sym, . - sym 46412042e2SAndrew Turner #define EEND(sym) 47412042e2SAndrew Turner 48412042e2SAndrew Turner #define WEAK_REFERENCE(sym, alias) \ 49412042e2SAndrew Turner .weak alias; \ 50412042e2SAndrew Turner .set alias,sym 51412042e2SAndrew Turner 52412042e2SAndrew Turner #define UINT64_C(x) (x) 53412042e2SAndrew Turner 54412042e2SAndrew Turner #if defined(PIC) 55412042e2SAndrew Turner #define PIC_SYM(x,y) x ## @ ## y 56412042e2SAndrew Turner #else 57412042e2SAndrew Turner #define PIC_SYM(x,y) x 58412042e2SAndrew Turner #endif 59412042e2SAndrew Turner 60*8b609ea5SAlexander Kabaev /* Alias for link register x30 */ 61*8b609ea5SAlexander Kabaev #define lr x30 62*8b609ea5SAlexander Kabaev 63412042e2SAndrew Turner /* 64412042e2SAndrew Turner * Sets the trap fault handler. The exception handler will return to the 65412042e2SAndrew Turner * address in the handler register on a data abort or the xzr register to 66412042e2SAndrew Turner * clear the handler. The tmp parameter should be a register able to hold 67412042e2SAndrew Turner * the temporary data. 68412042e2SAndrew Turner */ 69412042e2SAndrew Turner #define SET_FAULT_HANDLER(handler, tmp) \ 70412042e2SAndrew Turner ldr tmp, [x18, #PC_CURTHREAD]; /* Load curthread */ \ 71412042e2SAndrew Turner ldr tmp, [tmp, #TD_PCB]; /* Load the pcb */ \ 72412042e2SAndrew Turner str handler, [tmp, #PCB_ONFAULT] /* Set the handler */ 73412042e2SAndrew Turner 74412042e2SAndrew Turner #endif /* _MACHINE_ASM_H_ */ 75