ptrace.h revision 1.17
1 /* $NetBSD: ptrace.h,v 1.17 2017/01/16 21:35:59 kamil Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * Copyright (c) 1993 Christopher G. Demetriou 40 * All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by Christopher G. Demetriou. 53 * 4. The name of the author may not be used to endorse or promote products 54 * derived from this software without specific prior written permission 55 * 56 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 57 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 58 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 59 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 60 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 61 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 62 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 63 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 64 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 65 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 66 */ 67 68 #ifndef _I386_PTRACE_H_ 69 #define _I386_PTRACE_H_ 70 71 /* 72 * i386-dependent ptrace definitions 73 */ 74 #define PT_STEP (PT_FIRSTMACH + 0) 75 #define PT_GETREGS (PT_FIRSTMACH + 1) 76 #define PT_SETREGS (PT_FIRSTMACH + 2) 77 #define PT_GETFPREGS (PT_FIRSTMACH + 3) 78 #define PT_SETFPREGS (PT_FIRSTMACH + 4) 79 80 /* We have machine-dependent process tracing needs. */ 81 #define __HAVE_PTRACE_MACHDEP 82 83 /* We have machine-dependent procfs nodes. */ 84 #define __HAVE_PROCFS_MACHDEP 85 86 /* The machine-dependent ptrace(2) requests. */ 87 #define PT_GETXMMREGS (PT_FIRSTMACH + 5) 88 #define PT_SETXMMREGS (PT_FIRSTMACH + 6) 89 #define PT_READ_WATCHPOINT (PT_FIRSTMACH + 7) 90 #define PT_WRITE_WATCHPOINT (PT_FIRSTMACH + 8) 91 #define PT_COUNT_WATCHPOINTS (PT_FIRSTMACH + 9) 92 93 #define PT_MACHDEP_STRINGS \ 94 "PT_STEP", \ 95 "PT_GETREGS", \ 96 "PT_SETREGS", \ 97 "PT_GETFPREGS", \ 98 "PT_SETFPREGS", \ 99 "PT_GETXMMREGS", \ 100 "PT_SETXMMREGS", \ 101 "PT_READ_WATCHPOINT", \ 102 "PT_WRITE_WATCHPOINT", \ 103 "PT_COUNT_WATCHPOINTS" 104 105 #include <machine/reg.h> 106 #define PTRACE_REG_PC(r) (r)->r_eip 107 #define PTRACE_REG_SET_PC(r, v) (r)->r_eip = (v) 108 #define PTRACE_REG_SP(r) (r)->r_esp 109 #define PTRACE_REG_INTRV(r) (r)->r_eax 110 111 #define PTRACE_BREAKPOINT ((const uint8_t[]) { 0xcc }) 112 #define PTRACE_BREAKPOINT_SIZE 1 113 #define PTRACE_BREAKPOINT_ADJ sizeof(PTRACE_BREAKPOINT) 114 115 #define __HAVE_PTRACE_WATCHPOINTS 116 117 /* 118 * The current list of supported hardware watchpoints 119 */ 120 #define PTRACE_PW_TYPE_DBREGS 1 121 122 struct mdpw { 123 union { 124 /* Debug Registers DR0-3, DR6, DR7 */ 125 struct { 126 void *_md_address; 127 int _md_condition; 128 int _md_length; 129 } _dbregs; 130 } _type; 131 }; 132 133 /* 134 * This MD structure translates into x86_hw_watchpoint 135 * 136 * pw_address - 0 represents disabled hardware watchpoint 137 * 138 * conditions: 139 * 0b00 - execution 140 * 0b01 - data write 141 * 0b10 - io read/write (not implemented) 142 * 0b11 - data read/write 143 * 144 * length: 145 * 0b00 - 1 byte 146 * 0b01 - 2 bytes 147 * 0b10 - undefined 148 * 0b11 - 4 bytes 149 * 150 * Helper symbols for conditions and length are available in <x86/dbregs.h> 151 * 152 */ 153 154 #define md_address _type._dbregs._md_address 155 #define md_condition _type._dbregs._md_condition 156 #define md_length _type._dbregs._md_length 157 158 159 #ifdef _KERNEL 160 161 /* 162 * These are used in sys_ptrace() to find good ptrace(2) requests. 163 */ 164 #define PTRACE_MACHDEP_REQUEST_CASES \ 165 case PT_GETXMMREGS: \ 166 case PT_SETXMMREGS: 167 168 /* 169 * These are used to define machine-dependent procfs node types. 170 */ 171 #define PROCFS_MACHDEP_NODE_TYPES \ 172 Pmachdep_xmmregs, /* extended FP register set */ 173 174 /* 175 * These are used in switch statements to catch machine-dependent 176 * procfs node types. 177 */ 178 #define PROCFS_MACHDEP_NODETYPE_CASES \ 179 case Pmachdep_xmmregs: 180 181 /* 182 * These are used to protect a privileged process's state. 183 */ 184 #define PROCFS_MACHDEP_PROTECT_CASES \ 185 case Pmachdep_xmmregs: 186 187 /* 188 * These are used to define the machine-dependent procfs nodes. 189 */ 190 #define PROCFS_MACHDEP_NODETYPE_DEFNS \ 191 { DT_REG, N("xmmregs"), Pmachdep_xmmregs, \ 192 procfs_machdep_validxmmregs }, 193 194 struct xmmregs; 195 196 /* Functions used by both ptrace(2) and procfs. */ 197 int process_machdep_doxmmregs(struct lwp *, struct lwp *, struct uio *); 198 int process_machdep_validxmmregs(struct proc *); 199 200 /* Functions used by procfs. */ 201 struct mount; 202 struct pfsnode; 203 int procfs_machdep_doxmmregs(struct lwp *, struct lwp *, 204 struct pfsnode *, struct uio *); 205 int procfs_machdep_validxmmregs(struct lwp *, struct mount *); 206 207 #endif /* _KERNEL */ 208 209 #endif /* _I386_PTRACE_H_ */ 210
Indexes created Wed Oct 29 18:09:52 GMT 2025