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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2018-11-17 09:29:46 +0100 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2018-11-17 10:17:39 +0100 |
| commit | 9a10a1448724055417a15382d2ee9b1ae36a4da7 (patch) | |
| tree | 7d0fcd537dc75b1db046d1f5279f0a57cf9e7f5a /man7 | |
| parent | bdbc9b4475748bac7ddab2e1434b686756b26a6c (diff) | |
| download | man-pages-9a10a1448724055417a15382d2ee9b1ae36a4da7.tar.gz | |
signal.7: Place signal numbers in a separate table
The current tables of signal information are unwieldy,
as they try to cram in too much information.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man7')
| -rw-r--r-- | man7/signal.7 | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/man7/signal.7 b/man7/signal.7 index 5954ee97e3..56839be4d3 100644 --- a/man7/signal.7 +++ b/man7/signal.7 @@ -344,6 +344,79 @@ is synonymous with Since glibc 2.26, .B SIGUNUSED is no longer defined on any architecture. +.PP +.SS Signal numbering for standard signals +The numeric value for each signal is given in the table below. +As shown in the table, many signals have different numeric values +on different architectures. +The first numeric value in each table row shows the signal number +on x86, ARM, and most other architectures; +the second value is for Alpha and SPARC; the third is for MIPS; +and the last is for PARISC. +A dash (\-) denotes that a signal is absent on the corresponding architecture. +.TS +l c c c c l +l c c c c l +______ +lB c c c c l. +Signal x86/ARM Alpha/ MIPS PARISC Notes + most others SPARC +SIGHUP \01 \01 \01 \01 +SIGINT \02 \02 \02 \02 +SIGQUIT \03 \03 \03 \03 +SIGILL \04 \04 \04 \04 +SIGTRAP \05 \05 \05 \05 +SIGABRT \06 \06 \06 \06 +SIGIOT \06 \06 \06 \06 +SIGBUS \07 10 10 10 +SIGEMT \- \07 \07 - +SIGFPE \08 \08 \08 \08 +SIGKILL \09 \09 \09 \09 +SIGUSR1 10 30 16 16 +SIGSEGV 11 11 11 11 +SIGUSR2 12 31 17 17 +SIGPIPE 13 13 13 13 +SIGALRM 14 14 14 14 +SIGTERM 15 15 15 15 +SIGSTKFLT 16 \- \- \07 +SIGCHLD 17 20 18 18 +SIGCLD \- \- 18 \- +SIGCONT 18 19 25 26 +SIGSTOP 19 17 23 24 +SIGTSTP 20 18 24 25 +SIGTTIN 21 21 26 27 +SIGTTOU 22 22 27 28 +SIGURG 23 16 21 29 +SIGXCPU 24 24 30 12 +SIGXFSZ 25 25 31 30 +SIGVTALRM 26 26 28 20 +SIGPROF 27 27 29 21 +SIGWINCH 28 28 20 23 +SIGIO 29 23 22 22 +SIGPOLL Same as SIGIO +SIGPWR 30 29/\- 19 19 +SIGINFO \- 29/\- \- \- +SIGLOST \- \-/29 \- \- +SIGSYS 31 12 12 31 +SIGUNUSED 31 \- \- 31 +.TE +.PP +Note the following: +.IP * 3 +Where defined, +.B SIGUNUSED +is synonymous with +.BR SIGSYS . +Since glibc 2.26, +.B SIGUNUSED +is no longer defined on any architecture. +.IP * +Signal 29 is +.BR SIGINFO / SIGPWR +(synonyms for the same value) on Alpha but +.B SIGLOST +on SPARC. +.\" .SS Real-time signals Starting with version 2.2, Linux supports real-time signals as originally defined in the POSIX.1b |