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authorDenis Vlasenko <vda.linux@googlemail.com>2007-05-01 20:07:29 +0000
committerDenis Vlasenko <vda.linux@googlemail.com>2007-05-01 20:07:29 +0000
commitdcf4de20a1904bb31d498b6cc999a37f20b2783d (patch)
tree9c4c939bb250f37bd4f405b74723824cde1e8d7b /libbb/u_signal_names.c
parentf20de5bb42f9a4f2c8417f6a1a2db7e2f2cafd5b (diff)
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test: code size saving, no logic changes
ps: fix warning, make a bit smaller kill -l: make smaller & know much more signals function old new delta get_signum 121 153 +32 kill_main 826 843 +17 get_signame 44 36 -8 signals 252 224 -28 .rodata 131955 131923 -32 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/3 up/down: 49/-68) Total: -19 bytes
Diffstat (limited to 'libbb/u_signal_names.c')
-rw-r--r--libbb/u_signal_names.c148
1 files changed, 126 insertions, 22 deletions
diff --git a/libbb/u_signal_names.c b/libbb/u_signal_names.c
index 52861d405..dc4c0b237 100644
--- a/libbb/u_signal_names.c
+++ b/libbb/u_signal_names.c
@@ -9,20 +9,111 @@
9 9
10#include "libbb.h" 10#include "libbb.h"
11 11
12static const struct signal_name { 12static const char signals[32][7] = {
13 int number;
14 char name[5];
15} signals[] = {
16 // SUSv3 says kill must support these, and specifies the numerical values, 13 // SUSv3 says kill must support these, and specifies the numerical values,
17 // http://www.opengroup.org/onlinepubs/009695399/utilities/kill.html 14 // http://www.opengroup.org/onlinepubs/009695399/utilities/kill.html
18 // TODO: "[SIG]EXIT" shouldn't work for kill, right? 15 // TODO: "[SIG]EXIT" shouldn't work for kill, right?
19 {0, "EXIT"}, {1, "HUP"}, {2, "INT"}, {3, "QUIT"}, {6, "ABRT"}, {9, "KILL"}, 16 // {0, "EXIT"}, {1, "HUP"}, {2, "INT"}, {3, "QUIT"},
20 {14, "ALRM"}, {15, "TERM"}, 17 // {6, "ABRT"}, {9, "KILL"}, {14, "ALRM"}, {15, "TERM"}
21 // And Posix adds the following: 18 // And Posix adds the following:
22 {SIGILL, "ILL"}, {SIGTRAP, "TRAP"}, {SIGFPE, "FPE"}, {SIGUSR1, "USR1"}, 19 // {SIGILL, "ILL"}, {SIGTRAP, "TRAP"}, {SIGFPE, "FPE"}, {SIGUSR1, "USR1"},
23 {SIGSEGV, "SEGV"}, {SIGUSR2, "USR2"}, {SIGPIPE, "PIPE"}, {SIGCHLD, "CHLD"}, 20 // {SIGSEGV, "SEGV"}, {SIGUSR2, "USR2"}, {SIGPIPE, "PIPE"}, {SIGCHLD, "CHLD"},
24 {SIGCONT, "CONT"}, {SIGSTOP, "STOP"}, {SIGTSTP, "TSTP"}, {SIGTTIN, "TTIN"}, 21 // {SIGCONT, "CONT"}, {SIGSTOP, "STOP"}, {SIGTSTP, "TSTP"}, {SIGTTIN, "TTIN"},
25 {SIGTTOU, "TTOU"} 22 // {SIGTTOU, "TTOU"}
23 [0] = "EXIT",
24#ifdef SIGHUP
25 [SIGHUP ] = "HUP",
26#endif
27#ifdef SIGINT
28 [SIGINT ] = "INT",
29#endif
30#ifdef SIGQUIT
31 [SIGQUIT ] = "QUIT",
32#endif
33#ifdef SIGILL
34 [SIGILL ] = "ILL",
35#endif
36#ifdef SIGTRAP
37 [SIGTRAP ] = "TRAP",
38#endif
39#ifdef SIGABRT
40 [SIGABRT ] = "ABRT",
41#endif
42#ifdef SIGBUS
43 [SIGBUS ] = "BUS",
44#endif
45#ifdef SIGFPE
46 [SIGFPE ] = "FPE",
47#endif
48#ifdef SIGKILL
49 [SIGKILL ] = "KILL",
50#endif
51#ifdef SIGUSR1
52 [SIGUSR1 ] = "USR1",
53#endif
54#ifdef SIGSEGV
55 [SIGSEGV ] = "SEGV",
56#endif
57#ifdef SIGUSR2
58 [SIGUSR2 ] = "USR2",
59#endif
60#ifdef SIGPIPE
61 [SIGPIPE ] = "PIPE",
62#endif
63#ifdef SIGALRM
64 [SIGALRM ] = "ALRM",
65#endif
66#ifdef SIGTERM
67 [SIGTERM ] = "TERM",
68#endif
69#ifdef SIGSTKFLT
70 [SIGSTKFLT] = "STKFLT",
71#endif
72#ifdef SIGCHLD
73 [SIGCHLD ] = "CHLD",
74#endif
75#ifdef SIGCONT
76 [SIGCONT ] = "CONT",
77#endif
78#ifdef SIGSTOP
79 [SIGSTOP ] = "STOP",
80#endif
81#ifdef SIGTSTP
82 [SIGTSTP ] = "TSTP",
83#endif
84#ifdef SIGTTIN
85 [SIGTTIN ] = "TTIN",
86#endif
87#ifdef SIGTTOU
88 [SIGTTOU ] = "TTOU",
89#endif
90#ifdef SIGURG
91 [SIGURG ] = "URG",
92#endif
93#ifdef SIGXCPU
94 [SIGXCPU ] = "XCPU",
95#endif
96#ifdef SIGXFSZ
97 [SIGXFSZ ] = "XFSZ",
98#endif
99#ifdef SIGVTALRM
100 [SIGVTALRM] = "VTALRM",
101#endif
102#ifdef SIGPROF
103 [SIGPROF ] = "PROF",
104#endif
105#ifdef SIGWINCH
106 [SIGWINCH ] = "WINCH",
107#endif
108#ifdef SIGPOLL
109 [SIGPOLL ] = "POLL",
110#endif
111#ifdef SIGPWR
112 [SIGPWR ] = "PWR",
113#endif
114#ifdef SIGSYS
115 [SIGSYS ] = "SYS",
116#endif
26}; 117};
27 118
28// Convert signal name to number. 119// Convert signal name to number.
@@ -32,12 +123,28 @@ int get_signum(const char *name)
32 int i; 123 int i;
33 124
34 i = bb_strtou(name, NULL, 10); 125 i = bb_strtou(name, NULL, 10);
35 if (!errno) return i; 126 if (!errno)
36 for (i = 0; i < sizeof(signals) / sizeof(struct signal_name); i++) 127 return i;
37 if (strcasecmp(name, signals[i].name) == 0 128 if (strncasecmp(name, "SIG", 3) == 0)
38 || (strncasecmp(name, "SIG", 3) == 0 129 name += 3;
39 && strcasecmp(&name[3], signals[i].name) == 0)) 130 for (i = 0; i < sizeof(signals) / sizeof(signals[0]); i++)
40 return signals[i].number; 131 if (strcasecmp(name, signals[i]) == 0)
132 return i;
133
134#if ENABLE_DESKTOP && (defined(SIGIOT) || defined(SIGIO))
135 /* These are aliased to other names */
136 if ((name[0] | 0x20) == 'i' && (name[1] | 0x20) == 'o') {
137#ifdef SIGIO
138 if (!name[2])
139 return SIGIO;
140#endif
141#ifdef SIGIOT
142 if ((name[2] | 0x20) == 't' && !name[3])
143 return SIGIOT;
144#endif
145 }
146#endif
147
41 return -1; 148 return -1;
42} 149}
43 150
@@ -45,12 +152,9 @@ int get_signum(const char *name)
45 152
46const char *get_signame(int number) 153const char *get_signame(int number)
47{ 154{
48 int i; 155 if ((unsigned)number < sizeof(signals) / sizeof(signals[0])) {
49 156 if (signals[number][0]) /* if it's not an empty str */
50 for (i=0; i < sizeof(signals) / sizeof(struct signal_name); i++) { 157 return signals[number];
51 if (number == signals[i].number) {
52 return signals[i].name;
53 }
54 } 158 }
55 159
56 return itoa(number); 160 return itoa(number);
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-17 20:38:33 +0000