/*- * Copyright (c) 2015-2018 Ruslan Bukin <br@bsdpad.com> * All rights reserved. * * Portions of this software were developed by SRI International and the * University of Cambridge Computer Laboratory under DARPA/AFRL contract * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme. * * Portions of this software were developed by the University of Cambridge * Computer Laboratory as part of the CTSRD Project, with support from the * UK Higher Education Innovation Fund (HEIF). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _MACHINE_ASM_H_ #define _MACHINE_ASM_H_ #undef __FBSDID #if !defined(lint) && !defined(STRIP_FBSDID) #define __FBSDID(s) .ident s #else #define __FBSDID(s) /* nothing */ #endif /* not lint and not STRIP_FBSDID */ #define _C_LABEL(x) x #define ENTRY(sym) \ .text; .globl sym; .type sym,@function; .align 4; sym: #define END(sym) .size sym, . - sym #define EENTRY(sym) \ .globl sym; sym: #define EEND(sym) #define WEAK_REFERENCE(sym, alias) \ .weak alias; \ .set alias,sym #define SET_FAULT_HANDLER(handler, tmp) \ ld tmp, PC_CURTHREAD(tp); \ ld tmp, TD_PCB(tmp); /* Load the pcb */ \ sd handler, PCB_ONFAULT(tmp) /* Set the handler */ #define ENTER_USER_ACCESS(tmp) \ li tmp, SSTATUS_SUM; \ csrs sstatus, tmp #define EXIT_USER_ACCESS(tmp) \ li tmp, SSTATUS_SUM; \ csrc sstatus, tmp #endif /* _MACHINE_ASM_H_ */ |