| 1 | /* Machine-independent support for Solaris /proc (process file system) |
| 2 | |
| 3 | Copyright (C) 1999-2019 Free Software Foundation, Inc. |
| 4 | |
| 5 | Written by Michael Snyder at Cygnus Solutions. |
| 6 | Based on work by Fred Fish, Stu Grossman, Geoff Noer, and others. |
| 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 | #include "defs.h" |
| 22 | |
| 23 | #define _STRUCTURED_PROC 1 |
| 24 | |
| 25 | #include <sys/types.h> |
| 26 | #include <sys/procfs.h> |
| 27 | |
| 28 | #include "proc-utils.h" |
| 29 | |
| 30 | /* Much of the information used in the /proc interface, particularly |
| 31 | for printing status information, is kept as tables of structures of |
| 32 | the following form. These tables can be used to map numeric values |
| 33 | to their symbolic names and to a string that describes their |
| 34 | specific use. */ |
| 35 | |
| 36 | struct trans |
| 37 | { |
| 38 | int value; /* The numeric value. */ |
| 39 | const char *name; /* The equivalent symbolic value. */ |
| 40 | const char *desc; /* Short description of value. */ |
| 41 | }; |
| 42 | |
| 43 | /* Translate values in the pr_why field of a `struct prstatus' or |
| 44 | `struct lwpstatus'. */ |
| 45 | |
| 46 | static struct trans pr_why_table[] = |
| 47 | { |
| 48 | { PR_REQUESTED, "PR_REQUESTED", |
| 49 | "Directed to stop by debugger via P(IO)CSTOP or P(IO)CWSTOP" }, |
| 50 | { PR_SIGNALLED, "PR_SIGNALLED", "Receipt of a traced signal" }, |
| 51 | { PR_SYSENTRY, "PR_SYSENTRY", "Entry to a traced system call" }, |
| 52 | { PR_SYSEXIT, "PR_SYSEXIT", "Exit from a traced system call" }, |
| 53 | { PR_JOBCONTROL, "PR_JOBCONTROL", "Default job control stop signal action" }, |
| 54 | { PR_FAULTED, "PR_FAULTED", "Incurred a traced hardware fault" }, |
| 55 | { PR_SUSPENDED, "PR_SUSPENDED", "Process suspended" }, |
| 56 | { PR_CHECKPOINT, "PR_CHECKPOINT", "Process stopped at checkpoint" }, |
| 57 | }; |
| 58 | |
| 59 | /* Pretty-print the pr_why field of a `struct prstatus' or `struct |
| 60 | lwpstatus'. */ |
| 61 | |
| 62 | void |
| 63 | proc_prettyfprint_why (FILE *file, unsigned long why, unsigned long what, |
| 64 | int verbose) |
| 65 | { |
| 66 | int i; |
| 67 | |
| 68 | if (why == 0) |
| 69 | return; |
| 70 | |
| 71 | for (i = 0; i < ARRAY_SIZE (pr_why_table); i++) |
| 72 | if (why == pr_why_table[i].value) |
| 73 | { |
| 74 | fprintf (file, "%s ", pr_why_table[i].name); |
| 75 | if (verbose) |
| 76 | fprintf (file, ": %s ", pr_why_table[i].desc); |
| 77 | |
| 78 | switch (why) { |
| 79 | case PR_REQUESTED: |
| 80 | break; /* Nothing more to print. */ |
| 81 | case PR_SIGNALLED: |
| 82 | proc_prettyfprint_signal (file, what, verbose); |
| 83 | break; |
| 84 | case PR_FAULTED: |
| 85 | proc_prettyfprint_fault (file, what, verbose); |
| 86 | break; |
| 87 | case PR_SYSENTRY: |
| 88 | fprintf (file, "Entry to "); |
| 89 | proc_prettyfprint_syscall (file, what, verbose); |
| 90 | break; |
| 91 | case PR_SYSEXIT: |
| 92 | fprintf (file, "Exit from "); |
| 93 | proc_prettyfprint_syscall (file, what, verbose); |
| 94 | break; |
| 95 | case PR_JOBCONTROL: |
| 96 | proc_prettyfprint_signal (file, what, verbose); |
| 97 | break; |
| 98 | default: |
| 99 | fprintf (file, "Unknown why %ld, what %ld\n", why, what); |
| 100 | break; |
| 101 | } |
| 102 | fprintf (file, "\n"); |
| 103 | |
| 104 | return; |
| 105 | } |
| 106 | |
| 107 | fprintf (file, "Unknown pr_why.\n"); |
| 108 | } |
| 109 | |
| 110 | void |
| 111 | proc_prettyprint_why (unsigned long why, unsigned long what, int verbose) |
| 112 | { |
| 113 | proc_prettyfprint_why (stdout, why, what, verbose); |
| 114 | } |