Each object file in a static archive file (.a) is loaded into its own mmap()ed page

GHC API 7.8.x uses much more memory than GHC API 7.6.x. Attached two files demonstrate this:

• A.hs -- Simple program using GHC API (copied from Wiki)
• B.hs -- A target file, just hello world

You can compile A.hs as follows:

% ghc A.hs -package ghc -package ghc-paths

A.hs stays in 10 seconds. So, we can investigate its memory usage with the "top" command.The following is the result:

            Mac (64bit)  Linux (64bit)
GHC 7.6.3:         20MB            4MB
GHC 7.8.3:        106MB           13MB

Trac metadata

Trac field	Value
Version	7.8.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHC API
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