/* Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002 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 _SYS_PROCFS_H
#define _SYS_PROCFS_H	1

/* This is somewhat modelled after the file of the same name on SVR4
   systems.  It provides a definition of the core file format for ELF
   used on Linux.  It doesn't have anything to do with the /proc file
   system, even though Linux has one.

   Anyway, the whole purpose of this file is for GDB and GDB only.
   Don't read too much into it.  Don't use it for anything other than
   GDB unless you know what you are doing.  */

#include <features.h>
#include <sys/time.h>
#include <sys/types.h>


/* Type for a general-purpose register.  */
#ifndef ELF_GREG_T
#define ELF_GREG_T
typedef unsigned long elf_greg_t;
#endif

/* This is exactly the same as `struct pt_regs' in the kernel.  */
struct elf_gregset
{
	elf_greg_t gpr[32];	/* General purpose registers.  */

	elf_greg_t pc;		/* program counter */
	elf_greg_t psw;		/* program status word */
	elf_greg_t ear;		/* Exception address register */
	elf_greg_t esr;		/* Excep[tion Status Register */
	elf_greg_t fsr;		/* FPU Status register */

	elf_greg_t kernel_mode;	/* 1 if in `kernel mode', 0 if user mode */
	elf_greg_t single_step;	/* 1 if in single step mode */
};

#ifndef ELF_NGREG
#define ELF_NGREG (sizeof (struct elf_gregset) / sizeof(elf_greg_t))
#endif

#ifndef ELF_GREGSET_T
#define ELF_GREGSET_T
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
#endif

/* Register set for the floating-point registers.  */
#ifndef ELF_FPREGSET_T
#define ELF_FPREGSET_T
typedef elf_greg_t elf_fpregset_t;
#endif

struct elf_siginfo
{
	int	si_signo;			/* signal number */
	int	si_code;			/* extra code */
	int	si_errno;			/* errno */
};


/*
 * Definitions to generate Intel SVR4-like core files.
 * These mostly have the same names as the SVR4 types with "elf_"
 * tacked on the front to prevent clashes with linux definitions,
 * and the typedef forms have been avoided.  This is mostly like
 * the SVR4 structure, but more Linuxy, with things that Linux does
 * not support and which gdb doesn't really use excluded.
 * Fields present but not used are marked with "XXX".
 */
struct elf_prstatus
{
	struct elf_siginfo pr_info;	/* Info associated with signal */
	short	pr_cursig;		/* Current signal */
	unsigned long pr_sigpend;	/* Set of pending signals */
	unsigned long pr_sighold;	/* Set of held signals */
	__kernel_pid_t	pr_pid;
	__kernel_pid_t	pr_ppid;
	__kernel_pid_t	pr_pgrp;
	__kernel_pid_t	pr_sid;
	struct timeval pr_utime;	/* User time */
	struct timeval pr_stime;	/* System time */
	struct timeval pr_cutime;	/* Cumulative user time */
	struct timeval pr_cstime;	/* Cumulative system time */
	elf_gregset_t pr_reg;	/* GP registers */
	int pr_fpvalid;		/* True if math co-processor being used.  */
};

#define ELF_PRARGSZ	(80)	/* Number of chars for args */

struct elf_prpsinfo
{
	char	pr_state;	/* numeric process state */
	char	pr_sname;	/* char for pr_state */
	char	pr_zomb;	/* zombie */
	char	pr_nice;	/* nice val */
	unsigned long pr_flag;	/* flags */
	__kernel_uid_t	pr_uid;
	__kernel_gid_t	pr_gid;
	__kernel_pid_t	pr_pid, pr_ppid, pr_pgrp, pr_sid;
	/* Lots missing */
	char	pr_fname[16];	/* filename of executable */
	char	pr_psargs[ELF_PRARGSZ];	/* initial part of arg list */
};


/* The rest of this file provides the types for emulation of the
   Solaris <proc_service.h> interfaces that should be implemented by
   users of libthread_db.  */

/* Addresses.  */
typedef void *psaddr_t;

/* Register sets.  Linux has different names.  */
typedef elf_gregset_t prgregset_t;
typedef elf_fpregset_t prfpregset_t;

/* We don't have any differences between processes and threads,
   therefore have only one PID type.  */
typedef __kernel_pid_t lwpid_t;

/* Process status and info.  In the end we do provide typedefs for them.  */
typedef struct elf_prstatus prstatus_t;
typedef struct elf_prpsinfo prpsinfo_t;


#endif	/* sys/procfs.h */
