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Hans Wennborg 91a5a2afe4 Win: handle \\?\UNC\ prefix in realPathFromHandle (PR43204) 
After r361885, realPathFromHandle() ends up getting called on the working
directory on each Clang invocation. This unveiled that the code didn't work for
paths on network shares.

For example, if one maps the local dir c:\src\tmp to x:

  net use x: \\localhost\c$\tmp

and run e.g. "clang -c foo.cc" in x:\, realPathFromHandle will get
\\?\UNC\localhost\c$\src\tmp\ back from GetFinalPathNameByHandleW, and would
strip off the initial \\?\ prefix, ending up with a path that doesn't work.

This patch makes the prefix stripping a little smarter to handle this case.

Differential revision: https://reviews.llvm.org/D67166

llvm-svn: 371035
 		2019-09-05 09:07:05 +00:00
..
COM.inc Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
DynamicLibrary.inc Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Host.inc Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Memory.inc [Support] Renamed member 'Size' to 'AllocatedSize' in MemoryBlock and OwningMemoryBlock. 2019-05-20 20:53:05 +00:00
Path.inc Win: handle \\?\UNC\ prefix in realPathFromHandle (PR43204) 2019-09-05 09:07:05 +00:00
Process.inc [Support] Add error handling to sys::Process::getPageSize(). 2019-05-08 02:11:07 +00:00
Program.inc Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC 2019-08-05 05:43:48 +00:00
Signals.inc Support for dumping current PrettyStackTrace on SIGINFO (Ctrl-T) 2019-07-12 16:05:09 +00:00
ThreadLocal.inc Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Threading.inc [llvm][Support] Provide interface to set thread priorities 2019-04-16 14:32:43 +00:00
Watchdog.inc Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
WindowsSupport.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
explicit_symbols.inc Remove support for unsupported MSVC versions 2019-08-02 23:09:01 +00:00