3 # Copyright 2016 The Go Authors. All rights reserved.
4 # Use of this source code is governed by a BSD-style
5 # license that can be found in the LICENSE file.
7 # Create sigtab.go from gen-sysinfo.go.
9 # This shell scripts creates the sigtab.go file, which maps signals to
10 # their dispositions. We generate a file so that we can build a
11 # composite literal that only refers to signals that are defined on
14 # This script simply writes to standard output.
18 echo '// Generated by mksigtab.sh. Do not edit.'
20 echo 'package runtime'
22 echo 'var sigtable = [...]sigTabT{'
26 # Handle signals valid on all Unix systems.
30 # Get the signal number and add it to SIGLIST
31 signum
=`grep "const $1 = " gen-sysinfo.go | sed -e 's/.* = \([0-9]*\)/\1/'`
32 SIGLIST
=$SIGLIST"_${signum}_"
35 echo ' 0: {0, "SIGNONE: no trap"},'
36 addsig _SIGHUP
'{_SigNotify + _SigKill, "SIGHUP: terminal line hangup"}'
37 addsig _SIGINT
'{_SigNotify + _SigKill, "SIGINT: interrupt"}'
38 addsig _SIGQUIT
'{_SigNotify + _SigThrow, "SIGQUIT: quit"}'
39 addsig _SIGILL
'{_SigThrow + _SigUnblock, "SIGILL: illegal instruction"}'
40 addsig _SIGTRAP
'{_SigThrow + _SigUnblock, "SIGTRAP: trace trap"}'
41 addsig _SIGABRT
'{_SigNotify + _SigThrow, "SIGABRT: abort"}'
42 addsig _SIGBUS
'{_SigPanic + _SigUnblock, "SIGBUS: bus error"}'
43 addsig _SIGFPE
'{_SigPanic + _SigUnblock, "SIGFPE: floating-point exception"}'
44 addsig _SIGKILL
'{0, "SIGKILL: kill"}'
45 addsig _SIGUSR1
'{_SigNotify, "SIGUSR1: user-defined signal 1"}'
46 addsig _SIGSEGV
'{_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"}'
47 addsig _SIGUSR2
'{_SigNotify, "SIGUSR2: user-defined signal 2"}'
48 addsig _SIGPIPE
'{_SigNotify, "SIGPIPE: write to broken pipe"}'
49 addsig _SIGALRM
'{_SigNotify, "SIGALRM: alarm clock"}'
50 addsig _SIGTERM
'{_SigNotify + _SigKill, "SIGTERM: termination"}'
51 addsig _SIGCHLD
'{_SigNotify + _SigUnblock, "SIGCHLD: child status has changed"}'
52 addsig _SIGCONT
'{_SigNotify + _SigDefault, "SIGCONT: continue"}'
53 addsig _SIGSTOP
'{0, "SIGSTOP: stop"}'
54 addsig _SIGTSTP
'{_SigNotify + _SigDefault, "SIGTSTP: keyboard stop"}'
55 addsig _SIGTTIN
'{_SigNotify + _SigDefault, "SIGTTIN: background read from tty"}'
56 addsig _SIGTTOU
'{_SigNotify + _SigDefault, "SIGTTOU: background write to tty"}'
57 addsig _SIGURG
'{_SigNotify, "SIGURG: urgent condition on socket"}'
58 addsig _SIGXCPU
'{_SigNotify, "SIGXCPU: cpu limit exceeded"}'
59 addsig _SIGXFSZ
'{_SigNotify, "SIGXFSZ: file size limit exceeded"}'
60 addsig _SIGVTALRM
'{_SigNotify, "SIGVTALRM: virtual alarm clock"}'
61 addsig _SIGPROF
'{_SigNotify + _SigUnblock, "SIGPROF: profiling alarm clock"}'
62 addsig _SIGWINCH
'{_SigNotify, "SIGWINCH: window size change"}'
63 addsig _SIGSYS
'{_SigThrow, "SIGSYS: bad system call"}'
65 # Handle signals that are not supported on all systems.
68 if grep "const $1 = " gen-sysinfo.go
>/dev
/null
2>&1 \
69 && ! grep "const $1 = _SIG" gen-sysinfo.go
> /dev
/null
2>&1; then
74 checksig _SIGSTKFLT
'{_SigThrow + _SigUnblock, "SIGSTKFLT: stack fault"}'
75 checksig _SIGIO
'{_SigNotify, "SIGIO: i/o now possible"}'
76 checksig _SIGPWR
'{_SigNotify, "SIGPWR: power failure restart"}'
77 checksig _SIGEMT
'{_SigThrow, "SIGEMT: emulate instruction executed"}'
78 checksig _SIGINFO
'{_SigNotify, "SIGINFO: status request from keyboard"}'
79 checksig _SIGTHR
'{_SigNotify, "SIGTHR: reserved"}'
80 checksig _SIGPOLL
'{_SigNotify, "SIGPOLL: pollable event occurred"}'
81 checksig _SIGWAITING
'{_SigNotify, "SIGWAITING: reserved signal no longer used by"}'
82 checksig _SIGLWP
'{_SigNotify, "SIGLWP: reserved signal no longer used by"}'
83 checksig _SIGFREEZE
'{_SigNotify, "SIGFREEZE: special signal used by CPR"}'
84 checksig _SIGTHAW
'{_SigNotify, "SIGTHAW: special signal used by CPR"}'
85 checksig _SIGCANCEL
'{_SigSetStack + _SigUnblock, "SIGCANCEL: reserved signal for thread cancellation"}'
86 checksig _SIGXRES
'{_SigNotify, "SIGXRES: resource control exceeded"}'
87 checksig _SIGJVM1
'{_SigNotify, "SIGJVM1: reserved signal for Java Virtual Machine"}'
88 checksig _SIGJVM2
'{_SigNotify, "SIGJVM2: reserved signal for Java Virtual Machine"}'
90 # Special handling of signals 32 and 33 on GNU/Linux systems,
91 # because they are special to glibc.
92 if test "${GOOS}" = "linux"; then
93 SIGLIST
=$SIGLIST"_32__33_"
94 echo ' 32: {_SigSetStack + _SigUnblock, "signal 32"}, /* SIGCANCEL; see issue 6997 */'
95 echo ' 33: {_SigSetStack + _SigUnblock, "signal 33"}, /* SIGSETXID; see issues 3871, 9400, 12498 */'
98 if test "${GOOS}" = "aix"; then
99 # _NSIG = _NSIG32/_NSIG64 and _NSIG* = _SIGMAX* + 1
100 bits
=`grep 'const _NSIG = _NSIG[0-9]*$' gen-sysinfo.go | sed -e 's/.* = _NSIG\([0-9]*\)/\1/'`
101 nsig
=`grep "const _SIGMAX$bits = [0-9]*$" gen-sysinfo.go | sed -e 's/.* = \([0-9]*\)/\1/'`
102 nsig
=`expr $nsig + 1`
104 nsig
=`grep 'const _*NSIG = [0-9]*$' gen-sysinfo.go | sed -e 's/.* = \([0-9]*\)/\1/'`
108 # Fill in the remaining signal numbers in sigtable
109 while test "$i" -lt "$nsig"; do
110 if ! echo $SIGLIST |
grep "_${i}_" >/dev
/null
2>&1; then
111 echo " $i: {_SigNotify, \"signal $i\"},"