Add GN targets for codesighs and telemetry

third_party/codesighs/BUILD.gn

Index: third_party/codesighs/BUILD.gn
diff --git a/third_party/codesighs/BUILD.gn b/third_party/codesighs/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..c89d37201edb9b6161c79bd891a4178341cbf10f
--- /dev/null
+++ b/third_party/codesighs/BUILD.gn
@@ -0,0 +1,59 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/features.gni")

[Dirk Pranke, 2015/02/17 21:22:53]

I suggest we use:

    configs -= [ "//build/config/compiler:chromium_code" ]                      
    configs += [ "//build/config/compiler:no_chromium_code" ]                   

at the top-level instead of individually disabling /wd4267. It will turn off a
few other warnings, but is perhaps semantically clearer.

+
+executable("codesighs") {
+  sources = [
+    "codesighs.c",
+  ]
+
+  if (is_win) {
+    cflags = [ "/wd4267" ]
+  }
+}
+
+executable("maptsvdifftool") {
+  sources = [
+    "maptsvdifftool.c",
+  ]
+
+  if (is_win) {
+    cflags = [ "/wd4267" ]
+  }
+}
+
+if (is_win) {
+  executable("msmap2tsv") {
+    sources = [
+      "msmap2tsv.c",
+    ]
+
+    libs += [ "dbghelp.lib" ]
+
+    if (is_win) {
+      cflags = [ "/wd4267" ]
+    }
+  }
+
+  executable("msdump2symdb") {
+    sources = [
+      "msdump2symdb.c",
+    ]
+
+    if (is_win) {
+      cflags = [ "/wd4267" ]
+    }
+  }
+} else {
+  executable("nm2tsv") {
+    sources = [
+      "nm2tsv.c",
+    ]
+
+    if (is_win) {
+      cflags = [ "/wd4267" ]
+    }
+  }
+}