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Re: Variable page size for ELF
- To: ian@zembu.com (Ian Lance Taylor)
- Subject: Re: Variable page size for ELF
- From: hjl@lucon.org (H.J. Lu)
- Date: Sun, 11 Jul 1999 10:38:05 -0700 (PDT)
- Cc: binutils@sourceware.cygnus.com
> Merely changing the linker script is not a terribly useful feature,
> since people can already change it anyhow. The interesting new
> feature here is changing the use of maxpagesize in the backend data
> structure. However, the only interesting use of the backend
> maxpagesize is to set up the program headers, and you can already do
> that using PHDRS in the linker script.
I took a look at PHDRS. It is not easy to get it right with alignment
by hand.
>
> So I don't see any new functionality in the --page-size option. Of
> course, if it is a useful shorthand, we should add it anyhow. But
> that is where I wonder what the application is, since I don't see that
> either.
I got the request from our IA64 people.
>
> By the way, MAXPAGESIZE should probably not be used as a symbol name
> in a linker script, because it is part of the user's name space.
> Something like __MAXPAGESIZE would be better.
>
MAXPAGESIZE is a variable in linker script just like SIZEOF_HEADER.
It shouldn't show up in executable.
--
H.J. Lu (hjl@gnu.org)