gold patch committed: If file mmap fails, try anonymous mmap

[Ian Lance Taylor]

In some cases the file system does not support mmap of a file with
PROT_WRITE set.  Reportedly this happens on some FUSE file systems.  I
committed this gold patch from Elliott Hughes at Google to use an
anonymous mmap if the regular mmap fails.

Ian


2009-03-24  Elliott Hughes  <enh@google.com>

	* output.cc (Output_file::map_anonymous): Define.
	(Output_file::map): Use map_anonymous.  If the regular mmap fails,
	try an anonymous one.  Report the size if the mmap fails.
	* output.h (class Output_file): Declare map_anonymous.


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