1 /* $NetBSD: frame.h,v 1.18 2013/08/18 05:07:19 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1994-1997 Mark Brinicombe. 5 * Copyright (c) 1994 Brini. 6 * All rights reserved. 7 * 8 * This code is derived from software written for Brini by Mark Brinicombe 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by Brini. 21 * 4. The name of the company nor the name of the author may be used to 22 * endorse or promote products derived from this software without specific 23 * prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 /* 38 * arm/frame.h - Stack frames structures common to arm26 and arm32 39 */ 40 41 #ifndef _ARM_FRAME_H_ 42 #define _ARM_FRAME_H_ 43 44 #ifndef _LOCORE 45 46 #include <sys/signal.h> 47 #include <sys/ucontext.h> 48 49 /* 50 * Trap frame. Pushed onto the kernel stack on a trap (synchronous exception). 51 */ 52 53 typedef struct trapframe { 54 register_t tf_spsr; /* Zero on arm26 */ 55 register_t tf_fill; /* fill here so r0 will be dword aligned */ 56 register_t tf_r0; 57 register_t tf_r1; 58 register_t tf_r2; 59 register_t tf_r3; 60 register_t tf_r4; 61 register_t tf_r5; 62 register_t tf_r6; 63 register_t tf_r7; 64 register_t tf_r8; 65 register_t tf_r9; 66 register_t tf_r10; 67 register_t tf_r11; 68 register_t tf_r12; 69 register_t tf_usr_sp; 70 register_t tf_usr_lr; 71 register_t tf_svc_sp; /* Not used on arm26 */ 72 register_t tf_svc_lr; /* Not used on arm26 */ 73 register_t tf_pc; 74 } trapframe_t; 75 76 /* Register numbers */ 77 #define tf_ip tf_r12 78 #define tf_r13 tf_usr_sp 79 #define tf_r14 tf_usr_lr 80 #define tf_r15 tf_pc 81 82 #ifdef __PROG32 83 #define TRAP_USERMODE(tf) (((tf)->tf_spsr & PSR_MODE) == PSR_USR32_MODE) 84 #elif defined(__PROG26) 85 #define TRAP_USERMODE(tf) (((tf)->tf_r15 & R15_MODE) == R15_MODE_USR) 86 #endif 87 88 /* 89 * Signal frame. Pushed onto user stack before calling sigcode. 90 */ 91 #ifdef COMPAT_16 92 struct sigframe_sigcontext { 93 struct sigcontext sf_sc; 94 }; 95 #endif 96 97 /* the pointers are use in the trampoline code to locate the ucontext */ 98 struct sigframe_siginfo { 99 siginfo_t sf_si; /* actual saved siginfo */ 100 ucontext_t sf_uc; /* actual saved ucontext */ 101 }; 102 103 #ifdef _KERNEL 104 __BEGIN_DECLS 105 void sendsig_sigcontext(const ksiginfo_t *, const sigset_t *); 106 void *getframe(struct lwp *, int, int *); 107 __END_DECLS 108 #define lwp_trapframe(l) ((l)->l_md.md_tf) 109 #define lwp_settrapframe(l, tf) ((l)->l_md.md_tf = (tf)) 110 #endif 111 112 #endif /* _LOCORE */ 113 114 #endif /* _ARM_FRAME_H_ */ 115 116 /* End of frame.h */ 117