| #!/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 \ |
| && ! grep "const $1 = _SIG" 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/'` |
| if test -z "$nsig"; then |
| if grep 'const _*NSIG = [ (]*_*SIGRTMAX + 1[ )]*' gen-sysinfo.go >/dev/null 2>&1; then |
| rtmax=`grep 'const _*SIGRTMAX = [0-9]*$' gen-sysinfo.go | sed -e 's/.* = \([0-9]*\)/\1/'` |
| if test -n "$rtmax"; then |
| nsig=`expr $rtmax + 1` |
| fi |
| fi |
| fi |
| |
| if test -z "$nsig"; then |
| echo 1>&2 "could not determine number of signals" |
| exit 1 |
| fi |
| |
| 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 '}' |