1/* Machine independent support for SVR4 /proc (process file system) for GDB.
2   Copyright 1999, 2000 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
6This file is part of GDB.
7
8This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2 of the License, or
11(at your option) any later version.
12
13This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software Foundation,
20Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
21
22/*
23 * Pretty-print the pr_why value.
24 *
25 * Arguments: unsigned long flags, int verbose
26 *
27 */
28
29#include "defs.h"
30
31#if defined(NEW_PROC_API)
32#define _STRUCTURED_PROC 1
33#endif
34
35#include <stdio.h>
36#include <sys/types.h>
37#include <sys/procfs.h>
38
39#include "proc-utils.h"
40
41/*  Much of the information used in the /proc interface, particularly for
42    printing status information, is kept as tables of structures of the
43    following form.  These tables can be used to map numeric values to
44    their symbolic names and to a string that describes their specific use. */
45
46struct trans {
47  int value;                    /* The numeric value */
48  char *name;                   /* The equivalent symbolic value */
49  char *desc;                   /* Short description of value */
50};
51
52/*  Translate values in the pr_why field of the prstatus struct. */
53
54static struct trans pr_why_table[] =
55{
56#if defined (PR_REQUESTED)
57  /* All platforms */
58  { PR_REQUESTED, "PR_REQUESTED",
59    "Directed to stop by debugger via P(IO)CSTOP or P(IO)CWSTOP" },
60#endif
61#if defined (PR_SIGNALLED)
62  /* All platforms */
63  { PR_SIGNALLED, "PR_SIGNALLED", "Receipt of a traced signal" },
64#endif
65#if defined (PR_SYSENTRY)
66  /* All platforms */
67  { PR_SYSENTRY, "PR_SYSENTRY", "Entry to a traced system call" },
68#endif
69#if defined (PR_SYSEXIT)
70  /* All platforms */
71  { PR_SYSEXIT, "PR_SYSEXIT", "Exit from a traced system call" },
72#endif
73#if defined (PR_JOBCONTROL)
74  /* All platforms */
75  { PR_JOBCONTROL, "PR_JOBCONTROL", "Default job control stop signal action" },
76#endif
77#if defined (PR_FAULTED)
78  /* All platforms */
79  { PR_FAULTED, "PR_FAULTED", "Incurred a traced hardware fault" },
80#endif
81#if defined (PR_SUSPENDED)
82  /* Solaris and UnixWare */
83  { PR_SUSPENDED, "PR_SUSPENDED", "Process suspended" },
84#endif
85#if defined (PR_CHECKPOINT)
86  /* Solaris only */
87  { PR_CHECKPOINT, "PR_CHECKPOINT", "Process stopped at checkpoint" },
88#endif
89#if defined (PR_FORKSTOP)
90  /* OSF only */
91  { PR_FORKSTOP, "PR_FORKSTOP", "Process stopped at end of fork call" },
92#endif
93#if defined (PR_TCRSTOP)
94  /* OSF only */
95  { PR_TCRSTOP, "PR_TCRSTOP", "Process stopped on thread creation" },
96#endif
97#if defined (PR_TTSTOP)
98  /* OSF only */
99  { PR_TTSTOP, "PR_TTSTOP", "Process stopped on thread termination" },
100#endif
101#if defined (PR_DEAD)
102  /* OSF only */
103  { PR_DEAD, "PR_DEAD", "Process stopped in exit system call" },
104#endif
105};
106
107void
108proc_prettyfprint_why (FILE *file, unsigned long why, unsigned long what,
109		       int verbose)
110{
111  int i;
112
113  if (why == 0)
114    return;
115
116  for (i = 0; i < sizeof (pr_why_table) / sizeof (pr_why_table[0]); i++)
117    if (why == pr_why_table[i].value)
118      {
119	fprintf (file, "%s ", pr_why_table[i].name);
120	if (verbose)
121	  fprintf (file, ": %s ", pr_why_table[i].desc);
122
123	switch (why) {
124#ifdef PR_REQUESTED
125	case PR_REQUESTED:
126	  break;	/* Nothing more to print. */
127#endif
128#ifdef PR_SIGNALLED
129	case PR_SIGNALLED:
130	  proc_prettyfprint_signal (file, what, verbose);
131	  break;
132#endif
133#ifdef PR_FAULTED
134	case PR_FAULTED:
135	  proc_prettyfprint_fault (file, what, verbose);
136	  break;
137#endif
138#ifdef PR_SYSENTRY
139	case PR_SYSENTRY:
140	  fprintf (file, "Entry to ");
141	  proc_prettyfprint_syscall (file, what, verbose);
142	  break;
143#endif
144#ifdef PR_SYSEXIT
145	case PR_SYSEXIT:
146	  fprintf (file, "Exit from ");
147	  proc_prettyfprint_syscall (file, what, verbose);
148	  break;
149#endif
150#ifdef PR_JOBCONTROL
151	case PR_JOBCONTROL:
152	  proc_prettyfprint_signal (file, what, verbose);
153	  break;
154#endif
155#ifdef PR_DEAD
156	case PR_DEAD:
157	  fprintf (file, "Exit status: %d\n", what);
158	  break;
159#endif
160	default:
161	  fprintf (file, "Unknown why %ld, what %ld\n", why, what);
162	  break;
163	}
164	fprintf (file, "\n");
165
166	return;
167      }
168  fprintf (file, "Unknown pr_why.\n");
169}
170
171void
172proc_prettyprint_why (unsigned long why, unsigned long what, int verbose)
173{
174  proc_prettyfprint_why (stdout, why, what, verbose);
175}
176