From 3186be22b6598fbd467b126347d1c7f48ccb7f71 Mon Sep 17 00:00:00 2001
From: Dan Albert <danalbert@google.com>
Date: Thu, 14 Jan 2016 16:43:34 -0800
Subject: Check in a pristine copy of GCC 4.8.1.

The copy of GCC that we use for Android is still not working for
mingw. Rather than finding all the differences that have crept into
our GCC, just check in a copy from
ftp://ftp.gnu.org/gnu/gcc/gcc-4.9.3/gcc-4.8.1.tar.bz2.

GCC 4.8.1 was chosen because it is what we have been using for mingw
thus far, and the emulator doesn't yet work when upgrading to 4.9.

Bug: http://b/26523949
Change-Id: Iedc0f05243d4332cc27ccd46b8a4b203c88dcaa3
---
 gcc-4.8.1/libgo/runtime/go-int-array-to-string.c | 85 ++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 gcc-4.8.1/libgo/runtime/go-int-array-to-string.c

(limited to 'gcc-4.8.1/libgo/runtime/go-int-array-to-string.c')

diff --git a/gcc-4.8.1/libgo/runtime/go-int-array-to-string.c b/gcc-4.8.1/libgo/runtime/go-int-array-to-string.c
new file mode 100644
index 000000000..6cae2fd8c
--- /dev/null
+++ b/gcc-4.8.1/libgo/runtime/go-int-array-to-string.c
@@ -0,0 +1,85 @@
+/* go-int-array-to-string.c -- convert an array of ints to a string in Go.
+
+   Copyright 2009 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.  */
+
+#include "go-assert.h"
+#include "runtime.h"
+#include "arch.h"
+#include "malloc.h"
+
+String
+__go_int_array_to_string (const void* p, intgo len)
+{
+  const int32 *ints;
+  intgo slen;
+  intgo i;
+  unsigned char *retdata;
+  String ret;
+  unsigned char *s;
+
+  ints = (const int32 *) p;
+
+  slen = 0;
+  for (i = 0; i < len; ++i)
+    {
+      int32 v;
+
+      v = ints[i];
+
+      if (v < 0 || v > 0x10ffff)
+	v = 0xfffd;
+
+      if (v <= 0x7f)
+	slen += 1;
+      else if (v <= 0x7ff)
+	slen += 2;
+      else if (v <= 0xffff)
+	slen += 3;
+      else
+	slen += 4;
+    }
+
+  retdata = runtime_mallocgc ((uintptr) slen, FlagNoPointers, 1, 0);
+  ret.str = retdata;
+  ret.len = slen;
+
+  s = retdata;
+  for (i = 0; i < len; ++i)
+    {
+      int32 v;
+
+      v = ints[i];
+
+      /* If V is out of range for UTF-8, substitute the replacement
+	 character.  */
+      if (v < 0 || v > 0x10ffff)
+	v = 0xfffd;
+
+      if (v <= 0x7f)
+	*s++ = v;
+      else if (v <= 0x7ff)
+	{
+	  *s++ = 0xc0 | ((v >> 6) & 0x1f);
+	  *s++ = 0x80 | (v & 0x3f);
+	}
+      else if (v <= 0xffff)
+	{
+	  *s++ = 0xe0 | ((v >> 12) & 0xf);
+	  *s++ = 0x80 | ((v >> 6) & 0x3f);
+	  *s++ = 0x80 | (v & 0x3f);
+	}
+      else
+	{
+	  *s++ = 0xf0 | ((v >> 18) & 0x7);
+	  *s++ = 0x80 | ((v >> 12) & 0x3f);
+	  *s++ = 0x80 | ((v >> 6) & 0x3f);
+	  *s++ = 0x80 | (v & 0x3f);
+	}
+    }
+
+  __go_assert (s - retdata == slen);
+
+  return ret;
+}
-- 
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