FreeBSD/Linux Kernel Cross Reference
sys/sys/ptrace.h

     /*-
      * Copyright (c) 1984, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)ptrace.h    8.2 (Berkeley) 1/4/94
     * $FreeBSD: src/sys/sys/ptrace.h,v 1.10.2.2 2003/01/02 20:39:13 kan Exp $
     * $DragonFly: src/sys/sys/ptrace.h,v 1.9 2007/02/03 17:05:59 corecode Exp $
     */
    
    #ifndef _SYS_PTRACE_H_
    #define _SYS_PTRACE_H_
    
    #ifndef _SYS_TYPES_H_
    #include <sys/types.h>
    #endif
    
    #define PT_TRACE_ME     0       /* child declares it's being traced */
    #define PT_READ_I       1       /* read word in child's I space */
    #define PT_READ_D       2       /* read word in child's D space */
    /* was  PT_READ_U       3        * read word in child's user structure */
    #define PT_WRITE_I      4       /* write word in child's I space */
    #define PT_WRITE_D      5       /* write word in child's D space */
    /* was  PT_WRITE_U      6        * write word in child's user structure */
    #define PT_CONTINUE     7       /* continue the child */
    #define PT_KILL         8       /* kill the child process */
    #define PT_STEP         9       /* single step the child */
    
    #define PT_ATTACH       10      /* trace some running process */
    #define PT_DETACH       11      /* stop tracing a process */
    #define PT_IO           12      /* do I/O to/from stopped process. */
    
    #define PT_FIRSTMACH    32      /* for machine-specific requests */
    
    #ifndef _MACHINE_PTRACE_H_
    #include <machine/ptrace.h>     /* machine-specific requests, if any */
    #endif
    
    struct ptrace_io_desc {
            int     piod_op;        /* I/O operation */
            void    *piod_offs;     /* child offset */
            void    *piod_addr;     /* parent offset */
            size_t  piod_len;       /* request length */
    };
    
    /*
     *  Operations in piod_op.
     */
    #define PIOD_READ_D     1       /* Read from D space */
    #define PIOD_WRITE_D    2       /* Write to D space */
    #define PIOD_READ_I     3       /* Read from I space */
    #define PIOD_WRITE_I    4       /* Write to I space */
    
    #ifdef _KERNEL
    
    struct proc;
    struct lwp;
    
    void    proc_reparent (struct proc *child, struct proc *newparent);
    int     ptrace_set_pc (struct lwp *p, unsigned long addr);
    int     ptrace_single_step (struct lwp *lp);
    int     kern_ptrace (struct proc *p, int req, pid_t pid, void *addr,
                    int data, int *res);
    
    #else /* !_KERNEL */
    
    #ifndef _SYS_CDEFS_H_
    #include <sys/cdefs.h>
    #endif
    
    __BEGIN_DECLS
    int     ptrace (int, pid_t, caddr_t, int);
   __END_DECLS
   
   #endif /* !_KERNEL */
   
   #endif  /* !_SYS_PTRACE_H_ */

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