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From: Michael S <already5chosen@yahoo.com>
Newsgroups: comp.lang.c
Subject: Re: C23 thoughts and opinions
Date: Thu, 6 Jun 2024 14:43:25 +0300
Organization: A noiseless patient Spider
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On Sun, 2 Jun 2024 01:11:35 +0300
Michael S <already5chosen@yahoo.com> wrote:

> On Fri, 31 May 2024 22:15:54 +0100
> bart <bc@freeuk.com> wrote:
> 
> > If I run this:
> > 
> >      printf("%p\n", &_binary_hello_c_start);
> >      printf("%p\n", &_binary_hello_c_end);
> >      printf("%p\n", &_binary_hello_c_size);
> > 
> > I get:
> > 
> >      00007ff6ef252010
> >      00007ff6ef252056
> >      00007ff5af240046
> > 
> > I can see that the first two can be subtracted to give the sizes of
> > the data, which is 70 or 0x46. 0x46 is the last byte of the address
> > of _size, so what's happening there? What's with the crap in bits
> > 16-47?
> >   
> 
> It looks like ASLR. I don't see it because I test on Win7.
> 
> 

I tried it on versions of Windows that have ASLR. Had seen no problems.
I see *_start and *_end at high addresses and sometimes changing
between invocations, which means that ASLR is certainly in effect, but
*_size always prints correct result.