1 /* $NetBSD: frame.h,v 1.23 2022/04/02 11:16:07 skrll 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 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; 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; 72 register_t tf_svc_lr; 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 #define TRAP_USERMODE(tf) (((tf)->tf_spsr & PSR_MODE) == PSR_USR32_MODE) 83 84 #define FB_R4 0 85 #define FB_R5 1 86 #define FB_R6 2 87 #define FB_R7 3 88 #define FB_R8 4 89 #define FB_R9 5 90 #define FB_R10 6 91 #define FB_R11 7 92 #define FB_R12 8 93 #define FB_R13 9 94 #define FB_R14 10 95 #define FB_MAX 11 96 struct faultbuf { 97 register_t fb_reg[FB_MAX]; 98 }; 99 100 /* 101 * Signal frame. Pushed onto user stack before calling sigcode. 102 */ 103 #ifdef COMPAT_16 104 struct sigframe_sigcontext { 105 struct sigcontext sf_sc; 106 }; 107 #endif 108 109 /* the pointers are use in the trampoline code to locate the ucontext */ 110 struct sigframe_siginfo { 111 siginfo_t sf_si; /* actual saved siginfo */ 112 ucontext_t sf_uc; /* actual saved ucontext */ 113 }; 114 115 #if defined(_KERNEL) || defined(_KMEMUSER) 116 #ifdef _KERNEL 117 __BEGIN_DECLS 118 void sendsig_sigcontext(const ksiginfo_t *, const sigset_t *); 119 void *getframe(struct lwp *, int, int *); 120 __END_DECLS 121 #define lwp_settrapframe(l, tf) ((l)->l_md.md_tf = (tf)) 122 #endif 123 #define lwp_trapframe(l) ((l)->l_md.md_tf) 124 #endif /* _KERNEL || _KMEMUSER */ 125 126 #endif /* _LOCORE */ 127 128 #endif /* _ARM_FRAME_H_ */ 129 130 /* End of frame.h */ 131