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runtime: simplify conditions testing g.paniconfault

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Implement a comment by Ralph Corderoy on CL 29754.

Change-Id: I22bbede211ddcb8a057f16b4f47d335a156cc8d2
Reviewed-on: https://go-review.googlesource.com/29756
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Ian Lance Taylor 2016-09-25 12:37:00 -07:00
parent 343bec53c7
commit f05cd4cde5
1 changed files with 10 additions and 2 deletions
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12
src/runtime/signal_unix.go
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@ -211,13 +211,21 @@ func sigpanic() {
switch g.sig {
case _SIGBUS:
if g.sigcode0 == _BUS_ADRERR && g.sigcode1 < 0x1000 || g.paniconfault {
if g.sigcode0 == _BUS_ADRERR && g.sigcode1 < 0x1000 {
panicmem()
}
// Support runtime/debug.SetPanicOnFault.
if g.paniconfault {
panicmem()
}
print("unexpected fault address ", hex(g.sigcode1), "\n")
throw("fault")
case _SIGSEGV:
if (g.sigcode0 == 0 || g.sigcode0 == _SEGV_MAPERR || g.sigcode0 == _SEGV_ACCERR) && g.sigcode1 < 0x1000 || g.paniconfault {
if (g.sigcode0 == 0 || g.sigcode0 == _SEGV_MAPERR || g.sigcode0 == _SEGV_ACCERR) && g.sigcode1 < 0x1000 {
panicmem()
}
// Support runtime/debug.SetPanicOnFault.
if g.paniconfault {
panicmem()
}
print("unexpected fault address ", hex(g.sigcode1), "\n")