]>
Commit | Line | Data |
---|---|---|
bfff8b1b | 1 | /* Copyright (C) 2009-2017 Free Software Foundation, Inc. |
1f04d005 UD |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
1f04d005 | 17 | |
d10b132b | 18 | #include <array_length.h> |
57d2da1c | 19 | #include <errno.h> |
1f04d005 UD |
20 | #include <libintl.h> |
21 | #include <signal.h> | |
22 | #include <stdint.h> | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
27 | #include <not-cancel.h> | |
28 | ||
29 | ||
30 | #define MF(l) MF1 (l) | |
31 | #define MF1(l) str_##l | |
32 | #define C(s1, s2) C1 (s1, s2) | |
33 | #define C1(s1, s2) s1##s2 | |
34 | ||
35 | #define NOW SIGILL | |
36 | #include "psiginfo-define.h" | |
37 | ||
38 | #define NOW SIGFPE | |
39 | #include "psiginfo-define.h" | |
40 | ||
41 | #define NOW SIGSEGV | |
42 | #include "psiginfo-define.h" | |
43 | ||
44 | #define NOW SIGBUS | |
45 | #include "psiginfo-define.h" | |
46 | ||
47 | #define NOW SIGTRAP | |
48 | #include "psiginfo-define.h" | |
49 | ||
50 | #define NOW SIGCLD | |
51 | #include "psiginfo-define.h" | |
52 | ||
53 | #define NOW SIGPOLL | |
54 | #include "psiginfo-define.h" | |
55 | ||
56 | ||
57 | /* Print out on stderr a line consisting of the test in S, a colon, a space, | |
58 | a message describing the meaning of the signal number PINFO and a newline. | |
59 | If S is NULL or "", the colon and space are omitted. */ | |
60 | void | |
61 | psiginfo (const siginfo_t *pinfo, const char *s) | |
62 | { | |
63 | char buf[512]; | |
fdb7d390 | 64 | FILE *fp = __fmemopen (buf, sizeof (buf), "w"); |
1f04d005 UD |
65 | if (fp == NULL) |
66 | { | |
67 | const char *colon; | |
68 | ||
69 | if (s == NULL || *s == '\0') | |
70 | s = colon = ""; | |
71 | else | |
72 | colon = ": "; | |
73 | ||
74 | __fxprintf (NULL, "%s%ssignal %d\n", s, colon, pinfo->si_signo); | |
75 | return; | |
76 | } | |
77 | ||
78 | if (s != NULL && *s != '\0') | |
79 | fprintf (fp, "%s: ", s); | |
80 | ||
81 | const char *desc; | |
82 | if (pinfo->si_signo >= 0 && pinfo->si_signo < NSIG | |
5be8418c | 83 | && ((desc = _sys_siglist[pinfo->si_signo]) != NULL |
f75286c6 ST |
84 | #ifdef SIGRTMIN |
85 | || (pinfo->si_signo >= SIGRTMIN && pinfo->si_signo < SIGRTMAX) | |
86 | #endif | |
87 | )) | |
1f04d005 | 88 | { |
f75286c6 | 89 | #ifdef SIGRTMIN |
b76b818e UD |
90 | if (desc == NULL) |
91 | { | |
92 | if (pinfo->si_signo - SIGRTMIN < SIGRTMAX - pinfo->si_signo) | |
93 | { | |
94 | if (pinfo->si_signo == SIGRTMIN) | |
95 | fprintf (fp, "SIGRTMIN ("); | |
96 | else | |
97 | fprintf (fp, "SIGRTMIN+%d (", pinfo->si_signo - SIGRTMIN); | |
98 | } | |
99 | else | |
100 | { | |
101 | if (pinfo->si_signo == SIGRTMAX) | |
102 | fprintf (fp, "SIGRTMAX ("); | |
103 | else | |
104 | fprintf (fp, "SIGRTMAX-%d (", SIGRTMAX - pinfo->si_signo); | |
105 | } | |
106 | } | |
107 | else | |
f75286c6 | 108 | #endif |
b76b818e | 109 | fprintf (fp, "%s (", _(desc)); |
1f04d005 UD |
110 | |
111 | const char *base = NULL; | |
112 | const uint8_t *offarr = NULL; | |
113 | size_t offarr_len = 0; | |
114 | switch (pinfo->si_signo) | |
115 | { | |
116 | #define H(sig) \ | |
117 | case sig: \ | |
118 | base = C(codestrs_, sig).str; \ | |
119 | offarr = C (codes_, sig); \ | |
d10b132b | 120 | offarr_len = array_length (C (codes_, sig)); \ |
1f04d005 UD |
121 | break |
122 | ||
123 | H (SIGILL); | |
124 | H (SIGFPE); | |
125 | H (SIGSEGV); | |
126 | H (SIGBUS); | |
127 | H (SIGTRAP); | |
128 | H (SIGCHLD); | |
129 | H (SIGPOLL); | |
130 | } | |
131 | ||
132 | const char *str = NULL; | |
133 | if (offarr != NULL | |
134 | && pinfo->si_code >= 1 && pinfo->si_code <= offarr_len) | |
135 | str = base + offarr[pinfo->si_code - 1]; | |
136 | else | |
137 | switch (pinfo->si_code) | |
138 | { | |
139 | case SI_USER: | |
140 | str = N_("Signal sent by kill()"); | |
141 | break; | |
142 | case SI_QUEUE: | |
143 | str = N_("Signal sent by sigqueue()"); | |
144 | break; | |
145 | case SI_TIMER: | |
146 | str = N_("Signal generated by the expiration of a timer"); | |
147 | break; | |
148 | case SI_ASYNCIO: | |
149 | str = N_("\ | |
150 | Signal generated by the completion of an asynchronous I/O request"); | |
151 | break; | |
152 | case SI_MESGQ: | |
153 | str = N_("\ | |
154 | Signal generated by the arrival of a message on an empty message queue"); | |
155 | break; | |
156 | #ifdef SI_TKILL | |
157 | case SI_TKILL: | |
158 | str = N_("Signal sent by tkill()"); | |
159 | break; | |
160 | #endif | |
161 | #ifdef SI_ASYNCNL | |
162 | case SI_ASYNCNL: | |
163 | str = N_("\ | |
164 | Signal generated by the completion of an asynchronous name lookup request"); | |
165 | break; | |
166 | #endif | |
167 | #ifdef SI_SIGIO | |
168 | case SI_SIGIO: | |
169 | str = N_("\ | |
170 | Signal generated by the completion of an I/O request"); | |
171 | break; | |
172 | #endif | |
173 | #ifdef SI_KERNEL | |
174 | case SI_KERNEL: | |
175 | str = N_("Signal sent by the kernel"); | |
176 | break; | |
177 | #endif | |
178 | } | |
179 | ||
180 | if (str != NULL) | |
181 | fprintf (fp, "%s ", _(str)); | |
182 | else | |
183 | fprintf (fp, "%d ", pinfo->si_code); | |
184 | ||
185 | if (pinfo->si_signo == SIGILL || pinfo->si_signo == SIGFPE | |
186 | || pinfo->si_signo == SIGSEGV || pinfo->si_signo == SIGBUS) | |
af325969 | 187 | fprintf (fp, "[%p])\n", pinfo->si_addr); |
1f04d005 | 188 | else if (pinfo->si_signo == SIGCHLD) |
af325969 UD |
189 | fprintf (fp, "%ld %d %ld)\n", |
190 | (long int) pinfo->si_pid, pinfo->si_status, | |
1f04d005 UD |
191 | (long int) pinfo->si_uid); |
192 | else if (pinfo->si_signo == SIGPOLL) | |
af325969 | 193 | fprintf (fp, "%ld)\n", (long int) pinfo->si_band); |
1f04d005 | 194 | else |
af325969 | 195 | fprintf (fp, "%ld %ld)\n", |
1f04d005 UD |
196 | (long int) pinfo->si_pid, (long int) pinfo->si_uid); |
197 | } | |
198 | else | |
199 | fprintf (fp, _("Unknown signal %d\n"), pinfo->si_signo); | |
200 | ||
201 | fclose (fp); | |
202 | ||
c647fb88 | 203 | __write_nocancel (STDERR_FILENO, buf, strlen (buf)); |
1f04d005 | 204 | } |