Messages in this thread | | | Date | Thu, 10 Aug 2000 01:34:32 +0200 | From | Jamie Lokier <> | Subject | Re: [patch?] Re: Do ramdisk exec's map direct to buffer cache? |
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Alan Cox wrote: > > Because of large shared library we'll use, > > We want elf-based XIP binfmt. > > Perhaps I'll work for it, but can't see the way. > > If you map the library into the page cache it will be there read only. ELF > fixups will copy on write some pages into RAM.
Even that is avoided if you use pre-relocated ELF libraries, which I hear someone was working on. (They can still be relocated, but have a preferred load address where no pages need to be copied, and non-PIC code in the library becomes efficient again).
-- Jamie
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