sysdeps/unix/sysv/linux/i386/sys/procfs.h

   1 /* Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _SYS_PROCFS_H
  20 #define _SYS_PROCFS_H   1
  21
  22 /* This is somewhat modelled after the file of the same name on SVR4
  23    systems.  It provides a definition of the core file format for ELF
  24    used on Linux.  It doesn't have anything to do with the /proc file
  25    system, even though Linux has one.
  26
  27    Anyway, the whole purpose of this file is for GDB and GDB only.
  28    Don't read too much into it.  Don't use it for anything other than
  29    GDB unless you know what you are doing.  */
  30
  31 #include <features.h>
  32 #include <sys/time.h>
  33 #include <sys/types.h>
  34 #include <sys/user.h>
  35
  36 __BEGIN_DECLS
  37
  38 /* Type for a general-purpose register.  */
  39 typedef unsigned long elf_greg_t;
  40
  41 /* And the whole bunch of them.  We could have used `struct
  42    user_regs_struct' directly in the typedef, but tradition says that
  43    the register set is an array, which does have some peculiar
  44    semantics, so leave it that way.  */
  45 #define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
  46 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  47
  48 /* Register set for the floating-point registers.  */
  49 typedef struct user_fpregs_struct elf_fpregset_t;
  50
  51 /* Register set for the extended floating-point registers.  Includes
  52    the Pentium III SSE registers in addition to the classic
  53    floating-point stuff.  */
  54 typedef struct user_fpxregs_struct elf_fpxregset_t;
  55
  56
  57 /* Signal info.  */
  58 struct elf_siginfo
  59   {
  60     int si_signo;                       /* Signal number.  */
  61     int si_code;                        /* Extra code.  */
  62     int si_errno;                       /* Errno.  */
  63   };
  64
  65
  66 /* Definitions to generate Intel SVR4-like core files.  These mostly
  67    have the same names as the SVR4 types with "elf_" tacked on the
  68    front to prevent clashes with Linux definitions, and the typedef
  69    forms have been avoided.  This is mostly like the SVR4 structure,
  70    but more Linuxy, with things that Linux does not support and which
  71    GDB doesn't really use excluded.  */
  72
  73 struct elf_prstatus
  74   {
  75     struct elf_siginfo pr_info;         /* Info associated with signal.  */
  76     short int pr_cursig;                /* Current signal.  */
  77     unsigned long int pr_sigpend;       /* Set of pending signals.  */
  78     unsigned long int pr_sighold;       /* Set of held signals.  */
  79     __pid_t pr_pid;
  80     __pid_t pr_ppid;
  81     __pid_t pr_pgrp;
  82     __pid_t pr_sid;
  83     struct timeval pr_utime;            /* User time.  */
  84     struct timeval pr_stime;            /* System time.  */
  85     struct timeval pr_cutime;           /* Cumulative user time.  */
  86     struct timeval pr_cstime;           /* Cumulative system time.  */
  87     elf_gregset_t pr_reg;               /* GP registers.  */
  88     int pr_fpvalid;                     /* True if math copro being used.  */
  89   };
  90
  91
  92 #define ELF_PRARGSZ     (80)    /* Number of chars for args.  */
  93
  94 struct elf_prpsinfo
  95   {
  96     char pr_state;                      /* Numeric process state.  */
  97     char pr_sname;                      /* Char for pr_state.  */
  98     char pr_zomb;                       /* Zombie.  */
  99     char pr_nice;                       /* Nice val.  */
 100     unsigned long int pr_flag;          /* Flags.  */
 101     unsigned short int pr_uid;
 102     unsigned short int pr_gid;
 103     int pr_pid, pr_ppid, pr_pgrp, pr_sid;
 104     /* Lots missing */
 105     char pr_fname[16];                  /* Filename of executable.  */
 106     char pr_psargs[ELF_PRARGSZ];        /* Initial part of arg list.  */
 107   };
 108
 109
 110 /* The rest of this file provides the types for emulation of the
 111    Solaris <proc_service.h> interfaces that should be implemented by
 112    users of libthread_db.  */
 113
 114 /* Addresses.  */
 115 typedef void *psaddr_t;
 116
 117 /* Register sets.  Linux has different names.  */
 118 typedef elf_gregset_t prgregset_t;
 119 typedef elf_fpregset_t prfpregset_t;
 120
 121 /* We don't have any differences between processes and threads,
 122    therefore have only one PID type.  */
 123 typedef __pid_t lwpid_t;
 124
 125 /* Process status and info.  In the end we do provide typedefs for them.  */
 126 typedef struct elf_prstatus prstatus_t;
 127 typedef struct elf_prpsinfo prpsinfo_t;
 128
 129 __END_DECLS
 130
 131 #endif  /* sys/procfs.h */