[compiler-rt] r321817 - [asan] Fix build with Android NDK < 14.

[Evgeniy Stepanov via llvm-commits]

Author: eugenis
Date: Thu Jan  4 11:47:55 2018
New Revision: 321817

URL: http://llvm.org/viewvc/llvm-project?rev=321817&view=rev
Log:
[asan] Fix build with Android NDK < 14.

NDK < 13 & API_LEVEL < 21 do not define struct mmsghdr.
Newer NDK use unified headers and provide this definition for all api
levels.

Since we can not check for the NDK version, check the api level. This
is more strict than absolutely necessary, but it does not really
matter: it is only a sanity check.

Modified:
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_limits_posix.cc

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_limits_posix.cc?rev=321817&r1=321816&r2=321817&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_limits_posix.cc (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_limits_posix.cc Thu Jan  4 11:47:55 2018
@@ -1026,7 +1026,7 @@ CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len)
 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
 
-#if SANITIZER_LINUX
+#if SANITIZER_LINUX && (!defined(__ANDROID__) || __ANDROID_API__ >= 21)
 CHECK_TYPE_SIZE(mmsghdr);
 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_hdr);
 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_len);