sys/ptrace.h

/* `ptrace' debugger support interface.  Linux version.
   Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _SYS_PTRACE_H
#define _SYS_PTRACE_H	1

#include <features.h>

__BEGIN_DECLS

/* Type of the REQUEST argument to `ptrace.'  */
enum __ptrace_request
{
  /* Indicate that the process making this request should be traced.
     All signals received by this process can be intercepted by its
     parent, and its parent can use the other `ptrace' requests.  */
  PTRACE_TRACEME = 0,
#define PT_TRACE_ME PTRACE_TRACEME

  /* Return the word in the process's text space at address ADDR.  */
  PTRACE_PEEKTEXT = 1,
#define PT_READ_I PTRACE_PEEKTEXT

  /* Return the word in the process's data space at address ADDR.  */
  PTRACE_PEEKDATA = 2,
#define PT_READ_D PTRACE_PEEKDATA

  /* Return the word in the process's user area at offset ADDR.  */
  PTRACE_PEEKUSER = 3,
#define PT_READ_U PTRACE_PEEKUSER

  /* Write the word DATA into the process's text space at address ADDR.  */
  PTRACE_POKETEXT = 4,
#define PT_WRITE_I PTRACE_POKETEXT

  /* Write the word DATA into the process's data space at address ADDR.  */
  PTRACE_POKEDATA = 5,
#define PT_WRITE_D PTRACE_POKEDATA

  /* Write the word DATA into the process's user area at offset ADDR.  */
  PTRACE_POKEUSER = 6,
#define PT_WRITE_U PTRACE_POKEUSER

  /* Continue the process.  */
  PTRACE_CONT = 7,
#define PT_CONTINUE PTRACE_CONT

  /* Kill the process.  */
  PTRACE_KILL = 8,
#define PT_KILL PTRACE_KILL

  /* Single step the process.
     This is not supported on all machines.  */
  PTRACE_SINGLESTEP = 9,
#define PT_STEP PTRACE_SINGLESTEP

  /* Get all general purpose registers used by a processes.
     This is not supported on all machines.  */
   PTRACE_GETREGS = 12,
#define PT_GETREGS PTRACE_GETREGS

  /* Set all general purpose registers used by a processes.
     This is not supported on all machines.  */
   PTRACE_SETREGS = 13,
#define PT_SETREGS PTRACE_SETREGS

  /* Get all floating point registers used by a processes.
     This is not supported on all machines.  */
   PTRACE_GETFPREGS = 14,
#define PT_GETFPREGS PTRACE_GETFPREGS

  /* Set all floating point registers used by a processes.
     This is not supported on all machines.  */
   PTRACE_SETFPREGS = 15,
#define PT_SETFPREGS PTRACE_SETFPREGS

  /* Attach to a process that is already running. */
  PTRACE_ATTACH = 16,
#define PT_ATTACH PTRACE_ATTACH

  /* Detach from a process attached to with PTRACE_ATTACH.  */
  PTRACE_DETACH = 17,
#define PT_DETACH PTRACE_DETACH

  /* Get all extended floating point registers used by a processes.
     This is not supported on all machines.  */
   PTRACE_GETFPXREGS = 18,
#define PT_GETFPXREGS PTRACE_GETFPXREGS

  /* Set all extended floating point registers used by a processes.
     This is not supported on all machines.  */
   PTRACE_SETFPXREGS = 19,
#define PT_SETFPXREGS PTRACE_SETFPXREGS

  /* Continue and stop at the next (return from) syscall.  */
  PTRACE_SYSCALL = 24,
#define PT_SYSCALL PTRACE_SYSCALL

  /* E2k extentions.  */

  /* In protected mode return the descriptor-as-8-byte-adress
   * in the process's data space at address ADDR.  */
  PTRACE_PEEKPTR = 0x100,

  /* In protected mode write the word DATA (which respresents
   * descriptor-as-8-byte-adress) into the process's data space
   * at address ADDR.  */
  PTRACE_POKEPTR = 0x101,

  /* Return the tag of 4-byte in the process's data space at address ADDR.  */
  PTRACE_PEEKTAG = 0x120,

  /* Write the word DATA into the process's data space as a tag of 4-byte
   * at address ADDR.  */
  PTRACE_POKETAG = 0x121,

  /* Expand stack by one page */
  PTRACE_EXPAND_STACK = 0x130,
};

/* Perform process tracing functions.  REQUEST is one of the values
   above, and determines the action to be taken.
   For all requests except PTRACE_TRACEME, PID specifies the process to be
   traced.

   PID and the other arguments described above for the various requests should
   appear (those that are used for the particular request) as:
     pid_t PID, void *ADDR, int DATA, void *ADDR2
   after REQUEST.  */
extern long int ptrace (enum __ptrace_request __request, ...) __THROW;

__END_DECLS

#endif /* _SYS_PTRACE_H */