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

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Copyright (C) 1999-2018 Free Software Foundation, Inc.

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This file is part of the GNU C Library.

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The GNU C Library is free software; you can redistribute it and/or

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modify it under the terms of the GNU Lesser General Public

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License as published by the Free Software Foundation; either

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version 2.1 of the License, or (at your option) any later version.

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The GNU C Library is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

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Lesser General Public License for more details.

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You should have received a copy of the GNU Lesser General Public

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License along with the GNU C Library; if not, see

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

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#ifndef _PROC_SERVICE_H

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#define _PROC_SERVICE_H 1

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

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#include <sys/procfs.h>

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__BEGIN_DECLS

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

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typedef enum

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{

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

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PS_ERR, /* Generic error. */

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PS_BADPID, /* Bad process handle. */

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PS_BADLID, /* Bad LWP identifier. */

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PS_BADADDR, /* Bad address. */

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

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

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} ps_err_e;

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/* This type is opaque in this interface.

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

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struct ps_prochandle;

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

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extern ps_err_e ps_pdread (struct ps_prochandle *,

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psaddr_t, void *, size_t);

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extern ps_err_e ps_pdwrite (struct ps_prochandle *,

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psaddr_t, const void *, size_t);

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extern ps_err_e ps_ptread (struct ps_prochandle *,

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psaddr_t, void *, size_t);

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extern ps_err_e ps_ptwrite (struct ps_prochandle *,

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psaddr_t, const void *, size_t);

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

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extern ps_err_e ps_lgetregs (struct ps_prochandle *,

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lwpid_t, prgregset_t);

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extern ps_err_e ps_lsetregs (struct ps_prochandle *,

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lwpid_t, const prgregset_t);

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extern ps_err_e ps_lgetfpregs (struct ps_prochandle *,

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lwpid_t, prfpregset_t *);

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extern ps_err_e ps_lsetfpregs (struct ps_prochandle *,

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lwpid_t, const prfpregset_t *);

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/* Return the PID of the process. */

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extern pid_t ps_getpid (struct ps_prochandle *);

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

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

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

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extern ps_err_e ps_get_thread_area (struct ps_prochandle *,

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lwpid_t, int, psaddr_t *);

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

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associated with the process being debugged, filling in *SYM_ADDR

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with the corresponding run-time address. */

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extern ps_err_e ps_pglobal_lookup (struct ps_prochandle *,

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const char *object_name,

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const char *sym_name,

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psaddr_t *sym_addr);

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/* Stop or continue the entire process. */

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extern ps_err_e ps_pstop (struct ps_prochandle *);

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extern ps_err_e ps_pcontinue (struct ps_prochandle *);

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

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extern ps_err_e ps_lstop (struct ps_prochandle *, lwpid_t);

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extern ps_err_e ps_lcontinue (struct ps_prochandle *, lwpid_t);

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__END_DECLS

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#endif /* proc_service.h */

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