gdb/proc-flags.c

   1 /* Machine independent support for SVR4 /proc (process file system) for GDB.
   2    Copyright (C) 1999, 2000, 2007, 2008, 2009 Free Software Foundation, Inc.
   3    Written by Michael Snyder at Cygnus Solutions.
   4    Based on work by Fred Fish, Stu Grossman, Geoff Noer, and others.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 /*
  22  * Pretty-print the prstatus flags.
  23  *
  24  * Arguments: unsigned long flags, int verbose
  25  *
  26  */
  27
  28 #include "defs.h"
  29
  30 #if defined (NEW_PROC_API)
  31 #define _STRUCTURED_PROC 1
  32 #endif
  33
  34 #include <stdio.h>
  35 #include <sys/types.h>
  36 #include <sys/procfs.h>
  37
  38 /*  Much of the information used in the /proc interface, particularly for
  39     printing status information, is kept as tables of structures of the
  40     following form.  These tables can be used to map numeric values to
  41     their symbolic names and to a string that describes their specific use. */
  42
  43 struct trans {
  44   int value;                    /* The numeric value */
  45   char *name;                   /* The equivalent symbolic value */
  46   char *desc;                   /* Short description of value */
  47 };
  48
  49 /* Translate bits in the pr_flags member of the prstatus structure,
  50    into the names and desc information. */
  51
  52 static struct trans pr_flag_table[] =
  53 {
  54 #if defined (PR_STOPPED)
  55   /* Sol2.5: lwp is stopped
  56    * Sol2.6: lwp is stopped
  57    * Sol2.7: lwp is stopped
  58    * IRIX6:  process is stopped
  59    * OSF:    task/thread is stopped
  60    * UW:     LWP is stopped
  61    */
  62   { PR_STOPPED, "PR_STOPPED", "Process (LWP) is stopped" },
  63 #endif
  64 #if defined (PR_ISTOP)
  65   /* Sol2.5: lwp is stopped on an event of interest
  66    * Sol2.6: lwp is stopped on an event of interest
  67    * Sol2.7: lwp is stopped on an event of interest
  68    * IRIX6:  process is stopped on event of interest
  69    * OSF:    task/thread stopped on event of interest
  70    * UW:     LWP stopped on an event of interest
  71    */
  72   { PR_ISTOP, "PR_ISTOP", "Stopped on an event of interest" },
  73 #endif
  74 #if defined (PR_DSTOP)
  75   /* Sol2.5: lwp has a stop directive in effect
  76    * Sol2.6: lwp has a stop directive in effect
  77    * Sol2.7: lwp has a stop directive in effect
  78    * IRIX6:  process has stop directive in effect
  79    * OSF:    task/thread has stop directive in effect
  80    * UW:     A stop directive is in effect
  81    */
  82   { PR_DSTOP, "PR_DSTOP", "A stop directive is in effect" },
  83 #endif
  84 #if defined (PR_STEP)
  85   /* Sol2.5: lwp has a single-step directive in effect
  86    * Sol2.6: lwp has a single-step directive in effect
  87    * Sol2.7: lwp has a single-step directive in effect
  88    * IRIX6:  process has single step pending
  89    */
  90   { PR_STEP, "PR_STEP", "A single step directive is in effect" },
  91 #endif
  92 #if defined (PR_ASLEEP)
  93   /* Sol2.5: lwp is sleeping in a system call
  94    * Sol2.6: lwp is sleeping in a system call
  95    * Sol2.7: lwp is sleeping in a system call
  96    * IRIX6:  process is in an interruptible sleep
  97    * OSF:    task/thread is asleep within a system call
  98    * UW:     LWP is sleep()ing in a system call
  99    */
 100   { PR_ASLEEP, "PR_ASLEEP", "Sleeping in an (interruptible) system call" },
 101 #endif
 102 #if defined (PR_PCINVAL)
 103   /* Sol2.5: contents of pr_instr undefined
 104    * Sol2.6: contents of pr_instr undefined
 105    * Sol2.7: contents of pr_instr undefined
 106    * IRIX6:  current pc is invalid
 107    * OSF:    program counter contains invalid address
 108    * UW:     %pc refers to an invalid virtual address
 109    */
 110   { PR_PCINVAL, "PR_PCINVAL", "PC (pr_instr) is invalid" },
 111 #endif
 112 #if defined (PR_ASLWP)
 113   /* Sol2.5: this lwp is the aslwp
 114    * Sol2.6: this lwp is the aslwp
 115    * Sol2.7: this lwp is the aslwp
 116    */
 117   { PR_ASLWP, "PR_ASLWP", "This is the asynchronous signal LWP" },
 118 #endif
 119 #if defined (PR_AGENT)
 120   /* Sol2.6: this lwp is the /proc agent lwp
 121    * Sol2.7: this lwp is the /proc agent lwp
 122    */
 123   { PR_AGENT, "PR_AGENT", "This is the /proc agent LWP" },
 124 #endif
 125 #if defined (PR_ISSYS)
 126   /* Sol2.5: system process
 127    * Sol2.6: this is a system process
 128    * Sol2.7: this is a system process
 129    * IRIX6:  process is a system process
 130    * OSF:    task/thread is a system task/thread
 131    * UW:     System process
 132    */
 133   { PR_ISSYS, "PR_ISSYS", "Is a system process/thread" },
 134 #endif
 135 #if defined (PR_VFORKP)
 136   /* Sol2.6: process is the parent of a vfork()d child
 137    * Sol2.7: process is the parent of a vfork()d child
 138    */
 139   { PR_VFORKP, "PR_VFORKP", "Process is the parent of a vforked child" },
 140 #endif
 141 #ifdef PR_ORPHAN
 142   /* Sol2.6: process's process group is orphaned
 143    * Sol2.7: process's process group is orphaned
 144    */
 145   { PR_ORPHAN, "PR_ORPHAN", "Process's process group is orphaned" },
 146 #endif
 147 #if defined (PR_FORK)
 148   /* Sol2.5: inherit-on-fork is in effect
 149    * Sol2.6: inherit-on-fork is in effect
 150    * Sol2.7: inherit-on-fork is in effect
 151    * IRIX6:  process has inherit-on-fork flag set
 152    * OSF:    task/thread has inherit-on-fork flag set
 153    * UW:     inherit-on-fork is in effect
 154    */
 155   { PR_FORK, "PR_FORK", "Inherit-on-fork is in effect" },
 156 #endif
 157 #if defined (PR_RLC)
 158   /* Sol2.5: run-on-last-close is in effect
 159    * Sol2.6: run-on-last-close is in effect
 160    * Sol2.7: run-on-last-close is in effect
 161    * IRIX6:  process has run-on-last-close flag set
 162    * OSF:    task/thread has run-on-last-close flag set
 163    * UW:     Run-on-last-close is in effect
 164    */
 165   { PR_RLC, "PR_RLC", "Run-on-last-close is in effect" },
 166 #endif
 167 #if defined (PR_KLC)
 168   /* Sol2.5: kill-on-last-close is in effect
 169    * Sol2.6: kill-on-last-close is in effect
 170    * Sol2.7: kill-on-last-close is in effect
 171    * IRIX6:  process has kill-on-last-close flag set
 172    * OSF:    kill-on-last-close, superceeds RLC
 173    * UW:     kill-on-last-close is in effect
 174    */
 175   { PR_KLC, "PR_KLC", "Kill-on-last-close is in effect" },
 176 #endif
 177 #if defined (PR_ASYNC)
 178   /* Sol2.5: asynchronous-stop is in effect
 179    * Sol2.6: asynchronous-stop is in effect
 180    * Sol2.7: asynchronous-stop is in effect
 181    * OSF:    asynchronous stop mode is in effect
 182    * UW:     asynchronous stop mode is in effect
 183    */
 184   { PR_ASYNC, "PR_ASYNC", "Asynchronous stop is in effect" },
 185 #endif
 186 #if defined (PR_MSACCT)
 187   /* Sol2.5: micro-state usage accounting is in effect
 188    * Sol2.6: micro-state usage accounting is in effect
 189    * Sol2.7: micro-state usage accounting is in effect
 190    */
 191   { PR_MSACCT, "PR_MSACCT", "Microstate accounting enabled" },
 192 #endif
 193 #if defined (PR_BPTADJ)
 194   /* Sol2.5: breakpoint trap pc adjustment is in effect
 195    * Sol2.6: breakpoint trap pc adjustment is in effect
 196    * Sol2.7: breakpoint trap pc adjustment is in effect
 197    */
 198   { PR_BPTADJ, "PR_BPTADJ", "Breakpoint PC adjustment in effect" },
 199 #endif
 200 #if defined (PR_PTRACE)
 201   /* Note: different meanings on Solaris and Irix 6
 202    * Sol2.5: obsolete, never set in SunOS5.0
 203    * Sol2.6: ptrace-compatibility mode is in effect
 204    * Sol2.7: ptrace-compatibility mode is in effect
 205    * IRIX6:  process is traced with ptrace() too
 206    * OSF:    task/thread is being traced by ptrace
 207    * UW:     Process is being controlled by ptrace(2)
 208    */
 209   { PR_PTRACE, "PR_PTRACE", "Process is being controlled by ptrace" },
 210 #endif
 211 #if defined (PR_PCOMPAT)
 212   /* Note: PCOMPAT on Sol2.5 means same thing as PTRACE on Sol2.6
 213    * Sol2.5 (only): ptrace-compatibility mode is in effect
 214    */
 215   { PR_PCOMPAT, "PR_PCOMPAT", "Ptrace compatibility mode in effect" },
 216 #endif
 217 #ifdef PR_MSFORK
 218   /* Sol2.6: micro-state accounting inherited on fork
 219    * Sol2.7: micro-state accounting inherited on fork
 220    */
 221   { PR_MSFORK, "PR_PCOMPAT", "Micro-state accounting inherited on fork" },
 222 #endif
 223
 224 #ifdef PR_ISKTHREAD
 225   /* Irix6: process is a kernel thread */
 226   { PR_ISKTHREAD, "PR_KTHREAD", "Process is a kernel thread" },
 227 #endif
 228
 229 #ifdef PR_ABORT
 230   /* OSF (only): abort the current stop condition */
 231   { PR_ABORT, "PR_ABORT", "Abort the current stop condition" },
 232 #endif
 233
 234 #ifdef PR_TRACING
 235   /* OSF: task is traced */
 236   { PR_TRACING, "PR_TRACING", "Task is traced" },
 237 #endif
 238
 239 #ifdef PR_STOPFORK
 240   /* OSF: stop child on fork */
 241   { PR_STOPFORK, "PR_STOPFORK", "Stop child on fork" },
 242 #endif
 243
 244 #ifdef PR_STOPEXEC
 245   /* OSF: stop on exec */
 246   { PR_STOPEXEC, "PR_STOPEXEC", "Stop on exec" },
 247 #endif
 248
 249 #ifdef PR_STOPTERM
 250   /* OSF: stop on task exit */
 251   { PR_STOPTERM, "PR_STOPTERM", "Stop on task exit" },
 252 #endif
 253
 254 #ifdef PR_STOPTCR
 255   /* OSF: stop on thread creation */
 256   { PR_STOPTCR, "PR_STOPTCR", "Stop on thread creation" },
 257 #endif
 258
 259 #ifdef PR_STOPTTERM
 260   /* OSF: stop on thread exit */
 261   { PR_STOPTTERM, "PR_STOPTTERM", "Stop on thread exit" },
 262 #endif
 263
 264 #ifdef PR_USCHED
 265   /* OSF: user level scheduling is in effect */
 266   { PR_USCHED, "PR_USCHED", "User level scheduling is in effect" },
 267 #endif
 268 };
 269
 270 void
 271 proc_prettyfprint_flags (FILE *file, unsigned long flags, int verbose)
 272 {
 273   int i;
 274
 275   for (i = 0; i < sizeof (pr_flag_table) / sizeof (pr_flag_table[0]); i++)
 276     if (flags & pr_flag_table[i].value)
 277       {
 278         fprintf (file, "%s ", pr_flag_table[i].name);
 279         if (verbose)
 280           fprintf (file, "%s\n", pr_flag_table[i].desc);
 281       }
 282   if (!verbose)
 283     fprintf (file, "\n");
 284 }
 285
 286 void
 287 proc_prettyprint_flags (unsigned long flags, int verbose)
 288 {
 289   proc_prettyfprint_flags (stdout, flags, verbose);
 290 }