newlib/libc/stdlib/mallocr.c

Christopher Faylor cgf@redhat.com
Tue Apr 2 07:16:00 GMT 2002


On Tue, Apr 02, 2002 at 07:44:25AM -0500, Earnie Boyd wrote:
>In my modifying Cygwin source for MSYS I began having issues with malloc
>and the offending pieces being within this source.  I noticed that the
>HAVE_MMAP macro was set to 0 by default instead of 1 by default as
>Dave's documentation says that it does.  Modifying the macro value to 1
>caused all of the problems I was experiencing to disappear.
>
>Do other Cygwin developers see benefit for a patch to newlib?

Can you describe the problem?  I guess it's possible that allowing this code
would fix the out-of-memory heap issues we continually have but, the last time
I benchmarked this, using mmap had a performance hit.  This was on UNIX but
I can't imagine it isn't the same on cygwin.

cgf



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