/* Callback interface for libthread_db, functions users must define.

   Copyright (C) 1999-2018 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, see

   <http://www.gnu.org/licenses/>.  */

#ifndef _PROC_SERVICE_H

#define _PROC_SERVICE_H 1

/* The definitions in this file must correspond to those in the debugger.  */

#include <sys/procfs.h>

__BEGIN_DECLS

/* Functions in this interface return one of these status codes.  */

typedef enum

{

  PS_OK,		/* Generic "call succeeded".  */

  PS_ERR,		/* Generic error. */

  PS_BADPID,		/* Bad process handle.  */

  PS_BADLID,		/* Bad LWP identifier.  */

  PS_BADADDR,		/* Bad address.  */

  PS_NOSYM,		/* Could not find given symbol.  */

  PS_NOFREGS		/* FPU register set not available for given LWP.  */

} ps_err_e;

/* This type is opaque in this interface.

   It's defined by the user of libthread_db.  */

struct ps_prochandle;

/* Read or write process memory at the given address.  */

extern ps_err_e ps_pdread (struct ps_prochandle *,

			   psaddr_t, void *, size_t);

extern ps_err_e ps_pdwrite (struct ps_prochandle *,

			    psaddr_t, const void *, size_t);

extern ps_err_e ps_ptread (struct ps_prochandle *,

			   psaddr_t, void *, size_t);

extern ps_err_e ps_ptwrite (struct ps_prochandle *,

			    psaddr_t, const void *, size_t);

/* Get and set the given LWP's general or FPU register set.  */

extern ps_err_e ps_lgetregs (struct ps_prochandle *,

			     lwpid_t, prgregset_t);

extern ps_err_e ps_lsetregs (struct ps_prochandle *,

			     lwpid_t, const prgregset_t);

extern ps_err_e ps_lgetfpregs (struct ps_prochandle *,

			       lwpid_t, prfpregset_t *);

extern ps_err_e ps_lsetfpregs (struct ps_prochandle *,

			       lwpid_t, const prfpregset_t *);

/* Return the PID of the process.  */

extern pid_t ps_getpid (struct ps_prochandle *);

/* Fetch the special per-thread address associated with the given LWP.

   This call is only used on a few platforms (most use a normal register).

   The meaning of the `int' parameter is machine-dependent.  */

extern ps_err_e ps_get_thread_area (struct ps_prochandle *,

				    lwpid_t, int, psaddr_t *);

/* Look up the named symbol in the named DSO in the symbol tables

   associated with the process being debugged, filling in *SYM_ADDR

   with the corresponding run-time address.  */

extern ps_err_e ps_pglobal_lookup (struct ps_prochandle *,

				   const char *object_name,

				   const char *sym_name,

				   psaddr_t *sym_addr);

/* Stop or continue the entire process.  */

extern ps_err_e ps_pstop (struct ps_prochandle *);

extern ps_err_e ps_pcontinue (struct ps_prochandle *);

/* Stop or continue the given LWP alone.  */

extern ps_err_e ps_lstop (struct ps_prochandle *, lwpid_t);

extern ps_err_e ps_lcontinue (struct ps_prochandle *, lwpid_t);

__END_DECLS

#endif /* proc_service.h */