[patch] mmap() MAP_TEXT implementation (to use for shared libraries)

[Konstantin Belousov]

On Fri, Sep 07, 2012 at 12:48:19PM -0600, Ian Lepore wrote:
> On Fri, 2012-09-07 at 21:41 +0300, Konstantin Belousov wrote:
> > After a second thought, I do not like your proposal as well. +x is set for
> > shebang scripts, and allowing PROT_EXEC to set VV_TEXT for them means
> > that such scripts are subject for write denial.
> 
> You say that like it's a bad thing.  I hate it when I accidentally edit
> a script that's running and then the script fails because I did.  I
> would be much happier if it acted just like any other executable and
> prevented modification while it's running.

For me, if other user can block my modifications of my script by the mere
fact that script has o+rx rights, is indeed bad. I do use real machines
sometime.
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