From 54efdc596f7b6c711e5d65d99f1c25a0ca3628f1 Mon Sep 17 00:00:00 2001
From: David Crawshaw <crawshaw@golang.org>
Date: Mon, 2 Mar 2015 16:01:20 -0500
Subject: [PATCH] time: zoneinfo support on darwin/arm

A future change will include an NSTimeZone hook so we can determine
the device's current time zone.

Change-Id: Ia4bd6b955e4cb720c518055541b66ff57a4dd303
Reviewed-on: https://go-review.googlesource.com/6511
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Run-TryBot: David Crawshaw <crawshaw@golang.org>
---
 src/time/sleep_test.go           |  4 +++
 src/time/zoneinfo_darwin_armx.go | 51 ++++++++++++++++++++++++++++++++
 src/time/zoneinfo_unix.go        |  2 +-
 3 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 src/time/zoneinfo_darwin_armx.go

diff --git a/src/time/sleep_test.go b/src/time/sleep_test.go
index c9b2956b784..6452a9e0274 100644
--- a/src/time/sleep_test.go
+++ b/src/time/sleep_test.go
@@ -383,6 +383,10 @@ func TestOverflowSleep(t *testing.T) {
 // Test that a panic while deleting a timer does not leave
 // the timers mutex held, deadlocking a ticker.Stop in a defer.
 func TestIssue5745(t *testing.T) {
+	if runtime.GOOS == "darwin" && runtime.GOARCH == "arm" {
+		t.Skipf("skipping on %s/%s, see issue 10043", runtime.GOOS, runtime.GOARCH)
+	}
+
 	ticker := NewTicker(Hour)
 	defer func() {
 		// would deadlock here before the fix due to
diff --git a/src/time/zoneinfo_darwin_armx.go b/src/time/zoneinfo_darwin_armx.go
new file mode 100644
index 00000000000..f09166c89e9
--- /dev/null
+++ b/src/time/zoneinfo_darwin_armx.go
@@ -0,0 +1,51 @@
+// Copyright 2015 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
+// +build arm arm64
+
+package time
+
+import "syscall"
+
+var zoneFile string
+
+func init() {
+	wd, err := syscall.Getwd()
+	if err != nil {
+		return
+	}
+
+	// The working directory at initialization is the root of the
+	// app bundle: "/private/.../bundlename.app". That's where we
+	// keep zoneinfo.zip.
+	zoneFile = wd + "/zoneinfo.zip"
+}
+
+func forceZipFileForTesting(zipOnly bool) {
+	// On iOS we only have the zip file.
+}
+
+func initTestingZone() {
+	z, err := loadZoneFile(zoneFile, "America/Los_Angeles")
+	if err != nil {
+		panic("cannot load America/Los_Angeles for testing: " + err.Error())
+	}
+	z.name = "Local"
+	localLoc = *z
+}
+
+func initLocal() {
+	// TODO(crawshaw): [NSTimeZone localTimeZone]
+	localLoc = *UTC
+}
+
+func loadLocation(name string) (*Location, error) {
+	z, err := loadZoneFile(zoneFile, name)
+	if err != nil {
+		return nil, err
+	}
+	z.name = name
+	return z, nil
+}
diff --git a/src/time/zoneinfo_unix.go b/src/time/zoneinfo_unix.go
index 66540969d58..687d0046687 100644
--- a/src/time/zoneinfo_unix.go
+++ b/src/time/zoneinfo_unix.go
@@ -2,7 +2,7 @@
 // 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 nacl netbsd openbsd solaris
+// +build darwin,!arm,!arm64 dragonfly freebsd linux nacl netbsd openbsd solaris
 
 // Parse "zoneinfo" time zone file.
 // This is a fairly standard file format used on OS X, Linux, BSD, Sun, and others.