ports/devel/llvm40/files/patch-lib_Support_Unix_Path.inc
Brooks Davis 7e5597990d Merge from src and upstream LLVM:
lld: accept EINVAL to indicate posix_fallocate is unsupported

As of r325320 posix_fallocate on a ZFS filesystem returns EINVAL to
indicate that the operation is not supported. (I think this is a strange
choice of errno on the part of POSIX.)

PR:		223383, 223440
Reported by:	Mark Millard
2017-11-13 01:45:12 +00:00

22 lines
788 B
C++

--- lib/Support/Unix/Path.inc.orig
+++ lib/Support/Unix/Path.inc
@@ -342,14 +342,15 @@
#if defined(HAVE_POSIX_FALLOCATE)
// If we have posix_fallocate use it. Unlike ftruncate it always allocates
// space, so we get an error if the disk is full.
- if (int Err = ::posix_fallocate(FD, 0, Size))
- return std::error_code(Err, std::generic_category());
-#else
+ if (int Err = ::posix_fallocate(FD, 0, Size)) {
+ if (Err != EINVAL && Err != EOPNOTSUPP)
+ return std::error_code(Err, std::generic_category());
+ }
+#endif
// Use ftruncate as a fallback. It may or may not allocate space. At least on
// OS X with HFS+ it does.
if (::ftruncate(FD, Size) == -1)
return std::error_code(errno, std::generic_category());
-#endif
return std::error_code();
}