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#!/bin/sh
# Copyright 2016 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# Create sigtab.go from gen-sysinfo.go.
# This shell scripts creates the sigtab.go file, which maps signals to
# their dispositions. We generate a file so that we can build a
# composite literal that only refers to signals that are defined on
# this system.
# This script simply writes to standard output.
set -e
echo '// Generated by mksigtab.sh. Do not edit.'
echo
echo 'package runtime'
echo
echo 'var sigtable = [...]sigTabT{'
# Handle signals valid on all Unix systems.
echo ' 0: {0, "SIGNONE: no trap"},'
echo ' _SIGHUP: {_SigNotify + _SigKill, "SIGHUP: terminal line hangup"},'
echo ' _SIGINT: {_SigNotify + _SigKill, "SIGINT: interrupt"},'
echo ' _SIGQUIT: {_SigNotify + _SigThrow, "SIGQUIT: quit"},'
echo ' _SIGILL: {_SigThrow + _SigUnblock, "SIGILL: illegal instruction"},'
echo ' _SIGTRAP: {_SigThrow + _SigUnblock, "SIGTRAP: trace trap"},'
echo ' _SIGABRT: {_SigNotify + _SigThrow, "SIGABRT: abort"},'
echo ' _SIGBUS: {_SigPanic + _SigUnblock, "SIGBUS: bus error"},'
echo ' _SIGFPE: {_SigPanic + _SigUnblock, "SIGFPE: floating-point exception"},'
echo ' _SIGKILL: {0, "SIGKILL: kill"},'
echo ' _SIGUSR1: {_SigNotify, "SIGUSR1: user-defined signal 1"},'
echo ' _SIGSEGV: {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"},'
echo ' _SIGUSR2: {_SigNotify, "SIGUSR2: user-defined signal 2"},'
echo ' _SIGPIPE: {_SigNotify, "SIGPIPE: write to broken pipe"},'
echo ' _SIGALRM: {_SigNotify, "SIGALRM: alarm clock"},'
echo ' _SIGTERM: {_SigNotify + _SigKill, "SIGTERM: termination"},'
echo ' _SIGCHLD: {_SigNotify + _SigUnblock, "SIGCHLD: child status has changed"},'
echo ' _SIGCONT: {_SigNotify + _SigDefault, "SIGCONT: continue"},'
echo ' _SIGSTOP: {0, "SIGSTOP: stop"},'
echo ' _SIGTSTP: {_SigNotify + _SigDefault, "SIGTSTP: keyboard stop"},'
echo ' _SIGTTIN: {_SigNotify + _SigDefault, "SIGTTIN: background read from tty"},'
echo ' _SIGTTOU: {_SigNotify + _SigDefault, "SIGTTOU: background write to tty"},'
echo ' _SIGURG: {_SigNotify, "SIGURG: urgent condition on socket"},'
echo ' _SIGXCPU: {_SigNotify, "SIGXCPU: cpu limit exceeded"},'
echo ' _SIGXFSZ: {_SigNotify, "SIGXFSZ: file size limit exceeded"},'
echo ' _SIGVTALRM: {_SigNotify, "SIGVTALRM: virtual alarm clock"},'
echo ' _SIGPROF: {_SigNotify + _SigUnblock, "SIGPROF: profiling alarm clock"},'
echo ' _SIGWINCH: {_SigNotify, "SIGWINCH: window size change"},'
echo ' _SIGSYS: {_SigThrow, "SIGSYS: bad system call"},'
# Handle signals that are not supported on all systems.
checksig() {
if grep 'const $1 = ' gen-sysinfo.go >/dev/null 2>&1; then
echo " $1: $2,"
fi
}
checksig _SIGSTKFLT ' {_SigThrow + _SigUnblock, "SIGSTKFLT: stack fault"}'
checksig _SIGIO ' {_SigNotify, "SIGIO: i/o now possible"}'
checksig _SIGPWR ' {_SigNotify, "SIGPWR: power failure restart"}'
checksig _SIGEMT ' {_SigThrow, "SIGEMT: emulate instruction executed"}'
checksig _SIGINFO ' {_SigNotify, "SIGINFO: status request from keyboard"}'
checksig _SIGTHR ' {_SigNotify, "SIGTHR: reserved"}'
checksig _SIGPOLL ' {_SigNotify, "SIGPOLL: pollable event occurred"}'
checksig _SIGWAITING '{_SigNotify, "SIGWAITING: reserved signal no longer used by"}'
checksig _SIGLWP ' {_SigNotify, "SIGLWP: reserved signal no longer used by"}'
checksig _SIGFREEZE ' {_SigNotify, "SIGFREEZE: special signal used by CPR"}'
checksig _SIGTHAW ' {_SigNotify, "SIGTHAW: special signal used by CPR"}'
checksig _SIGCANCEL ' {_SigSetStack + _SigUnblock, "SIGCANCEL: reserved signal for thread cancellation"}'
checksig _SIGXRES ' {_SigNotify, "SIGXRES: resource control exceeded"}'
checksig _SIGJVM1 ' {_SigNotify, "SIGJVM1: reserved signal for Java Virtual Machine"}'
checksig _SIGJVM2 ' {_SigNotify, "SIGJVM2: reserved signal for Java Virtual Machine"}'
# Special handling of signals 32 and 33 on GNU/Linux systems,
# because they are special to glibc.
if test "${GOOS}" = "linux"; then
echo ' 32: {_SigSetStack + _SigUnblock, "signal 32"}, /* SIGCANCEL; see issue 6997 */'
echo ' 33: {_SigSetStack + _SigUnblock, "signal 33"}, /* SIGSETXID; see issues 3871, 9400, 12498 */'
fi
nsig=`grep 'const _*NSIG = [0-9]*$' gen-sysinfo.go | sed -e 's/.* = \([0-9]*\)/\1/'`
i=1
while test "$i" -lt "$nsig"; do
if ! grep "const _SIG.* = $i" gen-sysinfo.go >/dev/null 2>&1; then
if test "${GOOS}" != "linux" || test "$i" -ne 32 -a "$i" -ne 33; then
echo " $i: {_SigNotify, \"signal $i\"},"
fi
fi
i=`expr "$i" + 1`
done
echo '}'
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