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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [gdb/] [proc-why.c] - Blame information for rev 247

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1 24 jeremybenn
/* Machine-independent support for SVR4 /proc (process file system)
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   Copyright (C) 1999, 2000, 2004, 2007, 2008 Free Software Foundation, Inc.
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   Written by Michael Snyder at Cygnus Solutions.
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   Based on work by Fred Fish, Stu Grossman, Geoff Noer, and others.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program 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
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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#include "defs.h"
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#ifdef NEW_PROC_API
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#define _STRUCTURED_PROC 1
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#endif
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/procfs.h>
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#include "proc-utils.h"
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/* Much of the information used in the /proc interface, particularly
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   for printing status information, is kept as tables of structures of
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   the following form.  These tables can be used to map numeric values
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   to their symbolic names and to a string that describes their
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   specific use.  */
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struct trans
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{
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  int value;                    /* The numeric value.  */
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  char *name;                   /* The equivalent symbolic value.  */
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  char *desc;                   /* Short description of value.  */
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};
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/* Translate values in the pr_why field of a `struct prstatus' or
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   `struct lwpstatus'.  */
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static struct trans pr_why_table[] =
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{
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#if defined (PR_REQUESTED)
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  /* All platforms.  */
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  { PR_REQUESTED, "PR_REQUESTED",
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    "Directed to stop by debugger via P(IO)CSTOP or P(IO)CWSTOP" },
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#endif
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#if defined (PR_SIGNALLED)
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  /* All platforms.  */
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  { PR_SIGNALLED, "PR_SIGNALLED", "Receipt of a traced signal" },
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#endif
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#if defined (PR_SYSENTRY)
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  /* All platforms.  */
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  { PR_SYSENTRY, "PR_SYSENTRY", "Entry to a traced system call" },
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#endif
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#if defined (PR_SYSEXIT)
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  /* All platforms.  */
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  { PR_SYSEXIT, "PR_SYSEXIT", "Exit from a traced system call" },
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#endif
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#if defined (PR_JOBCONTROL)
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  /* All platforms.  */
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  { PR_JOBCONTROL, "PR_JOBCONTROL", "Default job control stop signal action" },
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#endif
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#if defined (PR_FAULTED)
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  /* All platforms.  */
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  { PR_FAULTED, "PR_FAULTED", "Incurred a traced hardware fault" },
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#endif
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#if defined (PR_SUSPENDED)
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  /* Solaris and UnixWare.  */
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  { PR_SUSPENDED, "PR_SUSPENDED", "Process suspended" },
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#endif
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#if defined (PR_CHECKPOINT)
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  /* Solaris only.  */
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  { PR_CHECKPOINT, "PR_CHECKPOINT", "Process stopped at checkpoint" },
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#endif
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#if defined (PR_FORKSTOP)
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  /* OSF/1 only.  */
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  { PR_FORKSTOP, "PR_FORKSTOP", "Process stopped at end of fork call" },
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#endif
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#if defined (PR_TCRSTOP)
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  /* OSF/1 only.  */
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  { PR_TCRSTOP, "PR_TCRSTOP", "Process stopped on thread creation" },
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#endif
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#if defined (PR_TTSTOP)
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  /* OSF/1 only.  */
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  { PR_TTSTOP, "PR_TTSTOP", "Process stopped on thread termination" },
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#endif
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#if defined (PR_DEAD)
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  /* OSF/1 only.  */
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  { PR_DEAD, "PR_DEAD", "Process stopped in exit system call" },
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#endif
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};
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/* Pretty-print the pr_why field of a `struct prstatus' or `struct
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   lwpstatus'.  */
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void
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proc_prettyfprint_why (FILE *file, unsigned long why, unsigned long what,
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                       int verbose)
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{
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  int i;
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  if (why == 0)
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    return;
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  for (i = 0; i < ARRAY_SIZE (pr_why_table); i++)
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    if (why == pr_why_table[i].value)
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      {
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        fprintf (file, "%s ", pr_why_table[i].name);
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        if (verbose)
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          fprintf (file, ": %s ", pr_why_table[i].desc);
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        switch (why) {
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#ifdef PR_REQUESTED
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        case PR_REQUESTED:
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          break;                /* Nothing more to print.  */
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#endif
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#ifdef PR_SIGNALLED
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        case PR_SIGNALLED:
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          proc_prettyfprint_signal (file, what, verbose);
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          break;
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#endif
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#ifdef PR_FAULTED
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        case PR_FAULTED:
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          proc_prettyfprint_fault (file, what, verbose);
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          break;
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#endif
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#ifdef PR_SYSENTRY
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        case PR_SYSENTRY:
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          fprintf (file, "Entry to ");
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          proc_prettyfprint_syscall (file, what, verbose);
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          break;
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#endif
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#ifdef PR_SYSEXIT
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        case PR_SYSEXIT:
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          fprintf (file, "Exit from ");
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          proc_prettyfprint_syscall (file, what, verbose);
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          break;
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#endif
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#ifdef PR_JOBCONTROL
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        case PR_JOBCONTROL:
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          proc_prettyfprint_signal (file, what, verbose);
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          break;
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#endif
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#ifdef PR_DEAD
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        case PR_DEAD:
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          fprintf (file, "Exit status: %ld\n", what);
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          break;
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#endif
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        default:
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          fprintf (file, "Unknown why %ld, what %ld\n", why, what);
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          break;
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        }
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        fprintf (file, "\n");
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        return;
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      }
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  fprintf (file, "Unknown pr_why.\n");
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}
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void
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proc_prettyprint_why (unsigned long why, unsigned long what, int verbose)
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{
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  proc_prettyfprint_why (stdout, why, what, verbose);
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}

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