Add detection of OS X relocatable SDK to compiler-rt as a lit.util function

Clang's lit cfg already detects the currently selected SDK via
"xcrun --show-sdk-path". The same thing should be done for compiler-rt tests,
to make them work on recent OS X versions. Instead of duplicating the detection
code, this patch extracts the detection function into a lit.util method.

Patch by Kuba Brecka (kuba.brecka@gmail.com),
reviewed at http://reviews.llvm.org/D4072

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@210534 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/lit.cfg b/test/lit.cfg
index 5c2b187791f0f911f80637519f30b0605ebcd55c..11e8e0b142705d4aa4bbbe377ec4ef323fd55918 100644 (file)
--- a/test/lit.cfg
+++ b/test/lit.cfg
@@ -471,18 +471,4 @@ gmalloc_path_str = lit_config.params.get('gmalloc_path',
 if use_gmalloc:
      config.environment.update({'DYLD_INSERT_LIBRARIES' : gmalloc_path_str})
 
-# On Darwin, support relocatable SDKs by providing Clang with a
-# default system root path.
-if 'darwin' in config.target_triple:
-    try:
-        cmd = subprocess.Popen(['xcrun', '--show-sdk-path'],
-                               stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        out, err = cmd.communicate()
-        out = out.strip()
-        res = cmd.wait()
-    except OSError:
-        res = -1
-    if res == 0 and out:
-        sdk_path = out
-        lit_config.note('using SDKROOT: %r' % sdk_path)
-        config.environment['SDKROOT'] = sdk_path
+lit.util.usePlatformSdkOnDarwin(config, lit_config)