sys/sys/ptrace.h

   1 /*-
   2  * Copyright (c) 1984, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)ptrace.h    8.2 (Berkeley) 1/4/94
  30  * $FreeBSD: src/sys/sys/ptrace.h,v 1.10.2.2 2003/01/02 20:39:13 kan Exp $
  31  * $DragonFly: src/sys/sys/ptrace.h,v 1.9 2007/02/03 17:05:59 corecode Exp $
  32  */
  33
  34 #ifndef _SYS_PTRACE_H_
  35 #define _SYS_PTRACE_H_
  36
  37 #ifndef _SYS_TYPES_H_
  38 #include <sys/types.h>
  39 #endif
  40
  41 #define PT_TRACE_ME     0       /* child declares it's being traced */
  42 #define PT_READ_I       1       /* read word in child's I space */
  43 #define PT_READ_D       2       /* read word in child's D space */
  44 /* was  PT_READ_U       3        * read word in child's user structure */
  45 #define PT_WRITE_I      4       /* write word in child's I space */
  46 #define PT_WRITE_D      5       /* write word in child's D space */
  47 /* was  PT_WRITE_U      6        * write word in child's user structure */
  48 #define PT_CONTINUE     7       /* continue the child */
  49 #define PT_KILL         8       /* kill the child process */
  50 #define PT_STEP         9       /* single step the child */
  51
  52 #define PT_ATTACH       10      /* trace some running process */
  53 #define PT_DETACH       11      /* stop tracing a process */
  54 #define PT_IO           12      /* do I/O to/from stopped process. */
  55
  56 #define PT_FIRSTMACH    32      /* for machine-specific requests */
  57
  58 #ifndef _MACHINE_PTRACE_H_
  59 #include <machine/ptrace.h>     /* machine-specific requests, if any */
  60 #endif
  61
  62 struct ptrace_io_desc {
  63         int     piod_op;        /* I/O operation */
  64         void    *piod_offs;     /* child offset */
  65         void    *piod_addr;     /* parent offset */
  66         size_t  piod_len;       /* request length */
  67 };
  68
  69 /*
  70  *  Operations in piod_op.
  71  */
  72 #define PIOD_READ_D     1       /* Read from D space */
  73 #define PIOD_WRITE_D    2       /* Write to D space */
  74 #define PIOD_READ_I     3       /* Read from I space */
  75 #define PIOD_WRITE_I    4       /* Write to I space */
  76
  77 #ifdef _KERNEL
  78
  79 struct proc;
  80 struct lwp;
  81
  82 void    proc_reparent (struct proc *child, struct proc *newparent);
  83 int     ptrace_set_pc (struct lwp *p, unsigned long addr);
  84 int     ptrace_single_step (struct lwp *lp);
  85 int     kern_ptrace (struct proc *p, int req, pid_t pid, void *addr,
  86                 int data, int *res);
  87
  88 #else /* !_KERNEL */
  89
  90 #ifndef _SYS_CDEFS_H_
  91 #include <sys/cdefs.h>
  92 #endif
  93
  94 __BEGIN_DECLS
  95 int     ptrace (int, pid_t, caddr_t, int);
  96 __END_DECLS
  97
  98 #endif /* !_KERNEL */
  99
 100 #endif  /* !_SYS_PTRACE_H_ */