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// Copyright 2014 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.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package runtime
func sigpanic() {
g := getg()
if !canpanic(g) {
gothrow("unexpected signal during runtime execution")
}
switch g.sig {
case _SIGBUS:
if g.sigcode0 == _BUS_ADRERR && g.sigcode1 < 0x1000 || g.paniconfault {
panicmem()
}
print("unexpected fault address ", hex(g.sigcode1), "\n")
gothrow("fault")
case _SIGSEGV:
if (g.sigcode0 == 0 || g.sigcode0 == _SEGV_MAPERR || g.sigcode0 == _SEGV_ACCERR) && g.sigcode1 < 0x1000 || g.paniconfault {
panicmem()
}
print("unexpected fault address ", hex(g.sigcode1), "\n")
gothrow("fault")
case _SIGFPE:
switch g.sigcode0 {
case _FPE_INTDIV:
panicdivide()
case _FPE_INTOVF:
panicoverflow()
}
panicfloat()
}
if g.sig >= uint32(len(sigtable)) {
// can't happen: we looked up g.sig in sigtable to decide to call sigpanic
gothrow("unexpected signal value")
}
panic(errorString(sigtable[g.sig].name))
}
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