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glibc  2.9
procfs.h
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00001 /* Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #ifndef _SYS_PROCFS_H
00020 #define _SYS_PROCFS_H       1
00021 
00022 /* This is somewhat modelled after the file of the same name on SVR4
00023    systems.  It provides a definition of the core file format for ELF
00024    used on Linux.  It doesn't have anything to do with the /proc file
00025    system, even though Linux has one.
00026 
00027    Anyway, the whole purpose of this file is for GDB and GDB only.
00028    Don't read too much into it.  Don't use it for anything other than
00029    GDB unless you know what you are doing.  */
00030 
00031 #include <features.h>
00032 #include <sys/time.h>
00033 #include <sys/types.h>
00034 #include <sys/user.h>
00035 
00036 __BEGIN_DECLS
00037 
00038 /* Type for a general-purpose register.  */
00039 typedef unsigned long elf_greg_t;
00040 
00041 /* And the whole bunch of them.  We could have used `struct
00042    user_regs_struct' directly in the typedef, but tradition says that
00043    the register set is an array, which does have some peculiar
00044    semantics, so leave it that way.  */
00045 #define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
00046 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
00047 
00048 /* Register set for the floating-point registers.  */
00049 typedef struct user_fpregs_struct elf_fpregset_t;
00050 
00051 /* Register set for the extended floating-point registers.  Includes
00052    the Pentium III SSE registers in addition to the classic
00053    floating-point stuff.  */
00054 typedef struct user_fpxregs_struct elf_fpxregset_t;
00055 
00056 
00057 /* Signal info.  */
00058 struct elf_siginfo
00059   {
00060     int si_signo;                  /* Signal number.  */
00061     int si_code;                   /* Extra code.  */
00062     int si_errno;                  /* Errno.  */
00063   };
00064 
00065 
00066 /* Definitions to generate Intel SVR4-like core files.  These mostly
00067    have the same names as the SVR4 types with "elf_" tacked on the
00068    front to prevent clashes with Linux definitions, and the typedef
00069    forms have been avoided.  This is mostly like the SVR4 structure,
00070    but more Linuxy, with things that Linux does not support and which
00071    GDB doesn't really use excluded.  */
00072 
00073 struct elf_prstatus
00074   {
00075     struct elf_siginfo pr_info;           /* Info associated with signal.  */
00076     short int pr_cursig;           /* Current signal.  */
00077     unsigned long int pr_sigpend;  /* Set of pending signals.  */
00078     unsigned long int pr_sighold;  /* Set of held signals.  */
00079     __pid_t pr_pid;
00080     __pid_t pr_ppid;
00081     __pid_t pr_pgrp;
00082     __pid_t pr_sid;
00083     struct timeval pr_utime;              /* User time.  */
00084     struct timeval pr_stime;              /* System time.  */
00085     struct timeval pr_cutime;             /* Cumulative user time.  */
00086     struct timeval pr_cstime;             /* Cumulative system time.  */
00087     elf_gregset_t pr_reg;          /* GP registers.  */
00088     int pr_fpvalid;                /* True if math copro being used.  */
00089   };
00090 
00091 
00092 #define ELF_PRARGSZ     (80)    /* Number of chars for args.  */
00093 
00094 struct elf_prpsinfo
00095   {
00096     char pr_state;                 /* Numeric process state.  */
00097     char pr_sname;                 /* Char for pr_state.  */
00098     char pr_zomb;                  /* Zombie.  */
00099     char pr_nice;                  /* Nice val.  */
00100     unsigned long int pr_flag;            /* Flags.  */
00101     unsigned short int pr_uid;
00102     unsigned short int pr_gid;
00103     int pr_pid, pr_ppid, pr_pgrp, pr_sid;
00104     /* Lots missing */
00105     char pr_fname[16];                    /* Filename of executable.  */
00106     char pr_psargs[ELF_PRARGSZ];   /* Initial part of arg list.  */
00107   };
00108 
00109 
00110 /* The rest of this file provides the types for emulation of the
00111    Solaris <proc_service.h> interfaces that should be implemented by
00112    users of libthread_db.  */
00113 
00114 /* Addresses.  */
00115 typedef void *psaddr_t;
00116 
00117 /* Register sets.  Linux has different names.  */
00118 typedef elf_gregset_t prgregset_t;
00119 typedef elf_fpregset_t prfpregset_t;
00120 
00121 /* We don't have any differences between processes and threads,
00122    therefore have only one PID type.  */
00123 typedef __pid_t lwpid_t;
00124 
00125 /* Process status and info.  In the end we do provide typedefs for them.  */
00126 typedef struct elf_prstatus prstatus_t;
00127 typedef struct elf_prpsinfo prpsinfo_t;
00128 
00129 __END_DECLS
00130 
00131 #endif /* sys/procfs.h */