Re: [Mingw-users] Making the .rdata segment writable

[Olsson Lars-E. <lar...@sc...>]

Thank you for your answer. I took your advice and removed the "const"
using a "define". It is the easiest way to maintain and understand for
others.=20

Lars Erik=20

-----Original Message-----
From: min...@li...
[mailto:min...@li...] On Behalf Of Brian
Dessent
Sent: den 29 mars 2007 10:26
To: MinGW Users List
Subject: Re: [Mingw-users] Making the .rdata segment writable


> Olsson Lars-Erik wrote:

> I am building a DLL and I want to make the .rdata segment writable to=20
> be able to change the variable values in this segment during an=20
> automatic testing process. After spent some days searching for a=20
> solution I now ask this forum how to do this.

I think this sounds like an extremely bad idea.  You could probably do
it by modifying the stock linker script (lib/ldscripts/i386pe.x) to put
.rdata in the .data output section instead of in .rdata.  If that
doesn't work you'd probably have to edit the source (emultempl/pe.em).=20
Even then there's a good chance the read-only-ness of any section named
rdata is enforced by the operating system, so it wouldn't work just to
remove the SEC_READONLY flag, although that's pure speculation on my
part.

Again, this sounds like an absolutely awful way to accomplish whatever
it is that you're trying to do -- a hammer is not a screw driver, use
your tools as they were designed, etc.

Wouldn't it be a whole lot easier to just remove "const" from the
variable's declaration?

Brian

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