Back to index

glibc  2.9
procfs.h
Go to the documentation of this file.
00001 /* Copyright (C) 1996, 1997, 1999, 2001 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' 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) / 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 elf_fpregset_t;
00050 
00051 /* Signal info.  */
00052 struct elf_siginfo
00053   {
00054     int si_signo;                  /* Signal number.  */
00055     int si_code;                   /* Extra code.  */
00056     int si_errno;                  /* Errno.  */
00057   };
00058 
00059 /* Definitions to generate Intel SVR4-like core files.  These mostly
00060    have the same names as the SVR4 types with "elf_" tacked on the
00061    front to prevent clashes with Linux definitions, and the typedef
00062    forms have been avoided.  This is mostly like the SVR4 structure,
00063    but more Linuxy, with things that Linux does not support and which
00064    GDB doesn't really use excluded.  */
00065 
00066 struct elf_prstatus
00067   {
00068     struct elf_siginfo pr_info;           /* Info associated with signal.  */
00069     short int pr_cursig;           /* Current signal.  */
00070     unsigned long int pr_sigpend;  /* Set of pending signals.  */
00071     unsigned long int pr_sighold;  /* Set of held signals.  */
00072     __pid_t pr_pid;
00073     __pid_t pr_ppid;
00074     __pid_t pr_pgrp;
00075     __pid_t pr_sid;
00076     struct timeval pr_utime;              /* User time.  */
00077     struct timeval pr_stime;              /* System time.  */
00078     struct timeval pr_cutime;             /* Cumulative user time.  */
00079     struct timeval pr_cstime;             /* Cumulative system time.  */
00080     elf_gregset_t pr_reg;          /* GP registers.  */
00081     int pr_fpvalid;                /* True if math copro being used.  */
00082   };
00083 
00084 
00085 #define ELF_PRARGSZ     (80)    /* Number of chars for args.  */
00086 
00087 struct elf_prpsinfo
00088   {
00089     char pr_state;                 /* Numeric process state.  */
00090     char pr_sname;                 /* Char for pr_state.  */
00091     char pr_zomb;                  /* Zombie.  */
00092     char pr_nice;                  /* Nice val.  */
00093     unsigned long int pr_flag;            /* Flags.  */
00094     unsigned short int pr_uid;
00095     unsigned short int pr_gid;
00096     int pr_pid, pr_ppid, pr_pgrp, pr_sid;
00097     /* Lots missing */
00098     char pr_fname[16];                    /* Filename of executable.  */
00099     char pr_psargs[ELF_PRARGSZ];   /* Initial part of arg list.  */
00100   };
00101 
00102 /* The rest of this file provides the types for emulation of the
00103    Solaris <proc_service.h> interfaces that should be implemented by
00104    users of libthread_db.  */
00105 
00106 /* Addresses.  */
00107 typedef void *psaddr_t;
00108 
00109 /* Register sets.  Linux has different names.  */
00110 typedef elf_gregset_t prgregset_t;
00111 typedef elf_fpregset_t prfpregset_t;
00112 
00113 /* We don't have any differences between processes and threads,
00114    therefore have only one PID type.  */
00115 typedef __pid_t lwpid_t;
00116 
00117 /* Process status and info.  In the end we do provide typedefs for them.  */
00118 typedef struct elf_prstatus prstatus_t;
00119 typedef struct elf_prpsinfo prpsinfo_t;
00120 
00121 __END_DECLS
00122 
00123 #endif /* sys/procfs.h */