libgo: update to Go 1.8 release candidate 1

    
    Compiler changes:
      * Change map assignment to use mapassign and assign value directly.
      * Change string iteration to use decoderune, faster for ASCII strings.
      * Change makeslice to take int, and use makeslice64 for larger values.
      * Add new noverflow field to hmap struct used for maps.
    
    Unresolved problems, to be fixed later:
      * Commented out test in go/types/sizes_test.go that doesn't compile.
      * Commented out reflect.TestStructOf test for padding after zero-sized field.
    
    Reviewed-on: https://go-review.googlesource.com/35231

gotools/:
	Updates for Go 1.8rc1.
	* Makefile.am (go_cmd_go_files): Add bug.go.
	(s-zdefaultcc): Write defaultPkgConfig.
	* Makefile.in: Rebuild.

From-SVN: r244456

1 files changed, 0 insertions, 66 deletions

diff --git a/libgo/go/runtime/signal2_unix.go b/libgo/go/runtime/signal2_unix.go
deleted file mode 100644
index 2a39eac..0000000
--- a/libgo/go/runtime/signal2_unix.go
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright 2012 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
-
-import "unsafe"
-
-// Determines if the signal should be handled by Go and if not, forwards the
-// signal to the handler that was installed before Go's. Returns whether the
-// signal was forwarded.
-// This is called by the signal handler, and the world may be stopped.
-//go:nosplit
-//go:nowritebarrierrec
-func sigfwdgo(sig uint32, info *_siginfo_t, ctx unsafe.Pointer) bool {
-	if sig >= uint32(len(sigtable)) {
-		return false
-	}
-	fwdFn := fwdSig[sig]
-
-	if !signalsOK {
-		// The only way we can get here is if we are in a
-		// library or archive, we installed a signal handler
-		// at program startup, but the Go runtime has not yet
-		// been initialized.
-		if fwdFn == _SIG_DFL {
-			dieFromSignal(int32(sig))
-		} else {
-			sigfwd(fwdFn, sig, info, ctx)
-		}
-		return true
-	}
-
-	flags := sigtable[sig].flags
-
-	// If there is no handler to forward to, no need to forward.
-	if fwdFn == _SIG_DFL {
-		return false
-	}
-
-	// If we aren't handling the signal, forward it.
-	if flags&_SigHandling == 0 {
-		sigfwd(fwdFn, sig, info, ctx)
-		return true
-	}
-
-	// Only forward synchronous signals.
-	c := sigctxt{info, ctx}
-	if c.sigcode() == _SI_USER || flags&_SigPanic == 0 {
-		return false
-	}
-	// Determine if the signal occurred inside Go code. We test that:
-	//   (1) we were in a goroutine (i.e., m.curg != nil), and
-	//   (2) we weren't in CGO (i.e., m.curg.syscallsp == 0).
-	g := getg()
-	if g != nil && g.m != nil && g.m.curg != nil && g.m.curg.syscallsp == 0 {
-		return false
-	}
-	// Signal not handled by Go, forward it.
-	if fwdFn != _SIG_IGN {
-		sigfwd(fwdFn, sig, info, ctx)
-	}
-	return true
-}