1 /* $NetBSD: proc.h,v 1.26 2011/01/14 02:06:28 rmind Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ralph Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)proc.h 8.1 (Berkeley) 6/10/93 35 */ 36 37 #ifndef _MIPS_PROC_H_ 38 #define _MIPS_PROC_H_ 39 40 #include <sys/param.h> 41 #include <mips/vmparam.h> 42 43 struct lwp; 44 45 /* 46 * Machine-dependent part of the lwp structure for MIPS 47 */ 48 struct frame; 49 50 struct mdlwp { 51 struct frame *md_regs; /* registers on current frame */ 52 int md_flags; /* machine-dependent flags */ 53 vaddr_t md_ss_addr; /* single step address for ptrace */ 54 int md_ss_instr; /* single step instruction for ptrace */ 55 volatile int md_astpending; /* AST pending on return to userland */ 56 #if USPACE > PAGE_SIZE 57 int md_upte[UPAGES]; /* ptes for mapping u page */ 58 #endif 59 }; 60 61 struct mdproc { 62 /* syscall entry for this process */ 63 void (*md_syscall)(struct lwp *, u_int, u_int, vaddr_t); 64 int md_abi; /* which ABI is this process using? */ 65 }; 66 67 /* md_flags */ 68 #define MDP_FPUSED 0x0001 /* floating point coprocessor used */ 69 70 /* 71 * MIPS trapframe 72 */ 73 struct frame { 74 mips_reg_t f_regs[38]; 75 u_int32_t f_ppl; /* previous priority level */ 76 mips_reg_t f_pad; /* for quadword alignment */ 77 }; 78 79 #ifdef _KERNEL 80 /* kernel single-step emulation */ 81 int mips_singlestep(struct lwp *l); 82 #endif /* _KERNEL */ 83 84 #endif /* _MIPS_PROC_H_ */ 85