176 lines
4.7 KiB
C
176 lines
4.7 KiB
C
/* Machine-independent support for SVR4 /proc (process file system)
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Copyright (C) 1999, 2000, 2004, 2007, 2008, 2009, 2010
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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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