Home | History | Annotate | Line # | Download | only in include
ptrace.h revision 1.19.12.1
      1 /*	$NetBSD: ptrace.h,v 1.19.12.1 2018/06/25 07:25:42 pgoyette 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_GETDBREGS		(PT_FIRSTMACH + 7)
     90 #define	PT_SETDBREGS		(PT_FIRSTMACH + 8)
     91 #define	PT_SETSTEP		(PT_FIRSTMACH + 9)
     92 #define	PT_CLEARSTEP		(PT_FIRSTMACH + 10)
     93 
     94 #define PT_MACHDEP_STRINGS \
     95 	"PT_STEP", \
     96 	"PT_GETREGS", \
     97 	"PT_SETREGS", \
     98 	"PT_GETFPREGS", \
     99 	"PT_SETFPREGS", \
    100 	"PT_GETXMMREGS", \
    101 	"PT_SETXMMREGS", \
    102 	"PT_GETDBREGS", \
    103 	"PT_SETDBREGS", \
    104 	"PT_SETSTEP", \
    105 	"PT_CLEARSTEP",
    106 
    107 
    108 #include <machine/reg.h>
    109 #define PTRACE_REG_PC(r)	(r)->r_eip
    110 #define PTRACE_REG_SET_PC(r, v)	(r)->r_eip = (v)
    111 #define PTRACE_REG_SP(r)	(r)->r_esp
    112 #define PTRACE_REG_INTRV(r)	(r)->r_eax
    113 
    114 #define PTRACE_BREAKPOINT	((const uint8_t[]) { 0xcc })
    115 #define PTRACE_BREAKPOINT_ASM	__asm __volatile ("int3" : : : "memory")
    116 #define PTRACE_BREAKPOINT_SIZE	1
    117 #define PTRACE_BREAKPOINT_ADJ	sizeof(PTRACE_BREAKPOINT)
    118 
    119 #ifdef _KERNEL
    120 
    121 /*
    122  * These are used in sys_ptrace() to find good ptrace(2) requests.
    123  */
    124 #define	PTRACE_MACHDEP_REQUEST_CASES					\
    125 	case PT_GETXMMREGS:						\
    126 	case PT_SETXMMREGS:
    127 
    128 /*
    129  * These are used to define machine-dependent procfs node types.
    130  */
    131 #define	PROCFS_MACHDEP_NODE_TYPES					\
    132 	Pmachdep_xmmregs,	/* extended FP register set */
    133 
    134 /*
    135  * These are used in switch statements to catch machine-dependent
    136  * procfs node types.
    137  */
    138 #define	PROCFS_MACHDEP_NODETYPE_CASES					\
    139 	case Pmachdep_xmmregs:
    140 
    141 /*
    142  * These are used to protect a privileged process's state.
    143  */
    144 #define	PROCFS_MACHDEP_PROTECT_CASES					\
    145 	case Pmachdep_xmmregs:
    146 
    147 /*
    148  * These are used to define the machine-dependent procfs nodes.
    149  */
    150 #define	PROCFS_MACHDEP_NODETYPE_DEFNS					\
    151 	{ DT_REG, N("xmmregs"), Pmachdep_xmmregs,			\
    152 	  procfs_machdep_validxmmregs },
    153 
    154 struct xmmregs;
    155 
    156 /* Functions used by both ptrace(2) and procfs. */
    157 int	process_machdep_doxmmregs(struct lwp *, struct lwp *, struct uio *);
    158 int	process_machdep_validxmmregs(struct proc *);
    159 
    160 /* Functions used by procfs. */
    161 struct mount;
    162 struct pfsnode;
    163 int	procfs_machdep_doxmmregs(struct lwp *, struct lwp *,
    164 	    struct pfsnode *, struct uio *);
    165 int	procfs_machdep_validxmmregs(struct lwp *, struct mount *);
    166 
    167 #endif /* _KERNEL */
    168 
    169 #endif /* _I386_PTRACE_H_ */
    170