From: "Leopold Toetsch" <[EMAIL PROTECTED]>
> Vladimir Lipsky <[EMAIL PROTECTED]> wrote:
> >> Ah, that's the reason for your bug report WRT JIT/NCI. The question is,
> >> how can we detect the presence of the exec-shield patch. Your
`uname -a`
> >> doesn't indicate it.
>
> > What for? We just alwa
Peter Gibbs <[EMAIL PROTECTED]> wrote:
> Leopold Toetsch wrote:
>> So we need:
>>
>> 1) a config test/option/whatever (e.g. mallocing some mem, fill in a
>> "ret" instruction and call that.
>> 2) Some means to allocate executable memory.
>>
>> Could you please have a look at fedora (kernel) docs?
Vladimir Lipsky <[EMAIL PROTECTED]> wrote:
>> Ah, that's the reason for your bug report WRT JIT/NCI. The question is,
>> how can we detect the presence of the exec-shield patch. Your `uname -a`
>> doesn't indicate it.
> What for? We just always do allocating memory from a JIT dedicated heap with
>
Leopold Toetsch wrote:
> So we need:
>
> 1) a config test/option/whatever (e.g. mallocing some mem, fill in a
> "ret" instruction and call that.
> 2) Some means to allocate executable memory.
>
> Could you please have a look at fedora (kernel) docs?
There are two ways to flag memory as executable
> Ah, that's the reason for your bug report WRT JIT/NCI. The question is,
> how can we detect the presence of the exec-shield patch. Your `uname -a`
> doesn't indicate it.
What for? We just always do allocating memory from a JIT dedicated heap with
execute flas set on it, no matter the presence of
Peter Gibbs <[EMAIL PROTECTED]> wrote:
> Leopold Toetsch wrote:
>> JIT code is run in malloc'ed memory (s. jit.c:1026) as well as JITted
>> NCI stubs. We already have some system specific stuff for JIT (some
>> architectures need a page flush before execution).
>>
>> So best would be to use a set
Leopold Toetsch wrote:
> JIT code is run in malloc'ed memory (s. jit.c:1026) as well as JITted
> NCI stubs. We already have some system specific stuff for JIT (some
> architectures need a page flush before execution).
>
> So best would be to use a set of spcialized function, e.g.:
> - mem_alloc_ex
Jonathan Worthington <[EMAIL PROTECTED]> wrote:
> Hi,
> I was looking over the WinXP Service Pack 2 "Changes to functionality"
> document, which you can get here:-
> http://www.microsoft.com/technet/treeview/default.asp?url=/technet/prodtechn
> ol/winxppro/maintain/winxpsp2.asp (download availabl
