LLVM_LTO support for make / ninja

test/mac/gyptest-lto.py

+#!/usr/bin/env python
+
+# Copyright (c) 2015 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+Verifies that LTO flags work.
+"""
+
+import TestGyp
+
+import os
+import re
+import subprocess
+import sys
+
+if sys.platform == 'darwin':
+  test = TestGyp.TestGyp(formats=['ninja', 'make', 'xcode'])
+  #if test.format == 'xcode-ninja':

[scottmg, 2015/04/01 23:50:21]

delete?

+  #  test.skip_test()
+  CHDIR = 'lto'
+  test.run_gyp('test.gyp', chdir=CHDIR)
+
+  test.build('test.gyp', test.ALL, chdir=CHDIR)
+
+  def ObjPath(srcpath, target):
+    # TODO: Remove this into TestGyp if it's needed elsewhere.
+    if test.format == 'xcode':
+      return os.path.join(CHDIR, 'build', 'test.build', 'Default',
+                          target + '.build', 'Objects-normal', 'x86_64',
+                          srcpath + '.o')
+    elif 'ninja' in test.format:  # ninja, xcode-ninja
+      return os.path.join(CHDIR, 'out', 'Default', 'obj',
+                          target + '.' + srcpath + '.o')
+    elif test.format == 'make':
+      return os.path.join(CHDIR, 'out', 'Default', 'obj.target',
+                          target, srcpath + '.o')
+
+  def ObjType(p, t_expected):
+    r = re.compile(r'nsyms\s+(\d+)')
+    o = subprocess.check_output(['file', p])
+    objtype = 'unknown'
+    if ': Mach-O ' in o:
+      objtype = 'mach-o'
+    elif ': LLVM bit-code ' in o:
+      objtype = 'llvm'
+    if objtype != t_expected:
+      print 'Expected %s, got %s' % (t_expected, objtype)
+      test.fail_test()
+
+  ObjType(ObjPath('cfile', 'lto'), 'llvm')
+  ObjType(ObjPath('ccfile', 'lto'), 'llvm')
+  ObjType(ObjPath('mfile', 'lto'), 'llvm')
+  ObjType(ObjPath('mmfile', 'lto'), 'llvm')
+  ObjType(ObjPath('asmfile', 'lto'), 'mach-o')
+
+  ObjType(ObjPath('cfile', 'lto_static'), 'llvm')
+  ObjType(ObjPath('ccfile', 'lto_static'), 'llvm')
+  ObjType(ObjPath('mfile', 'lto_static'), 'llvm')
+  ObjType(ObjPath('mmfile', 'lto_static'), 'llvm')
+  ObjType(ObjPath('asmfile', 'lto_static'), 'mach-o')
+
+  test.pass_test()
+
+  # TODO: Probably test for -object_path_lto too, else dsymutil won't be
+  # useful maybe?