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Source file src/runtime/signal_plan9.go

Documentation: runtime

  // Copyright 2011 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.
  
  package runtime
  
  type sigTabT struct {
  	flags int
  	name  string
  }
  
  // Incoming notes are compared against this table using strncmp, so the
  // order matters: longer patterns must appear before their prefixes.
  // There are _SIG constants in os2_plan9.go for the table index of some
  // of these.
  //
  // If you add entries to this table, you must respect the prefix ordering
  // and also update the constant values is os2_plan9.go.
  var sigtable = [...]sigTabT{
  	// Traps that we cannot be recovered.
  	{_SigThrow, "sys: trap: debug exception"},
  	{_SigThrow, "sys: trap: invalid opcode"},
  
  	// We can recover from some memory errors in runtime·sigpanic.
  	{_SigPanic, "sys: trap: fault read"},  // SIGRFAULT
  	{_SigPanic, "sys: trap: fault write"}, // SIGWFAULT
  
  	// We can also recover from math errors.
  	{_SigPanic, "sys: trap: divide error"}, // SIGINTDIV
  	{_SigPanic, "sys: fp:"},                // SIGFLOAT
  
  	// All other traps are normally handled as if they were marked SigThrow.
  	// We mark them SigPanic here so that debug.SetPanicOnFault will work.
  	{_SigPanic, "sys: trap:"}, // SIGTRAP
  
  	// Writes to a closed pipe can be handled if desired, otherwise they're ignored.
  	{_SigNotify, "sys: write on closed pipe"},
  
  	// Other system notes are more serious and cannot be recovered.
  	{_SigThrow, "sys:"},
  
  	// Issued to all other procs when calling runtime·exit.
  	{_SigGoExit, "go: exit "},
  
  	// Kill is sent by external programs to cause an exit.
  	{_SigKill, "kill"},
  
  	// Interrupts can be handled if desired, otherwise they cause an exit.
  	{_SigNotify + _SigKill, "interrupt"},
  	{_SigNotify + _SigKill, "hangup"},
  
  	// Alarms can be handled if desired, otherwise they're ignored.
  	{_SigNotify, "alarm"},
  
  	// Aborts can be handled if desired, otherwise they cause a stack trace.
  	{_SigNotify + _SigThrow, "abort"},
  }
  

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