From: yunfeng zhang <zyf.zeroos@gmail.com>
To: Dave Korn <dave.korn.cygwin@googlemail.com>
Cc: Alexandre Oliva <aoliva@redhat.com>,
Richard Henderson <rth@redhat.com>,
gcc@gcc.gnu.org, Andrew Haley <aph@redhat.com>
Subject: Re: No .got section in ELF
Date: Fri, 27 Nov 2009 04:43:00 -0000 [thread overview]
Message-ID: <4df04b840911262043i582df686w713c64cfb202af03@mail.gmail.com> (raw)
In-Reply-To: <4B0F556D.8040607@gmail.com>
You can run a.out several times
24>>a5e0<<, 249>>41c<<
11>>15e0<<, 110>>41c<<
c7>>85e0<<, c77>>41c<<
8c>>35e0<<, 8c2>>41c<<
...
Now open f.map
g = 0x15e0, foo = 0x41c
is it 5 + 3 = 4 + 4?
2009/11/27 Dave Korn <dave.korn.cygwin@googlemail.com>:
> yunfeng zhang wrote:
>
>> have an *exact* map to foo.so in disk
>
> This is where your misunderstanding arises. Just as 5+3 can add up to the
> same result as 4+4, so you cannot ignore that the final mapped addresses you
> are seeing add up to the same result via different routes. Compile your
> sources using --save-temps, and look at the differences in the generated
> assembly files. By looking only at the final results, you are losing
> information about how those results are arrived at.
>
> cheers,
> DaveK
>
>
>
>
next prev parent reply other threads:[~2009-11-27 4:43 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-24 1:58 yunfeng zhang
2009-11-24 10:00 ` Andrew Haley
2009-11-24 17:10 ` Richard Henderson
2009-11-26 2:24 ` yunfeng zhang
2009-11-26 3:11 ` Richard Henderson
2009-11-26 6:04 ` yunfeng zhang
2009-11-26 7:55 ` Alexandre Oliva
2009-11-27 2:18 ` yunfeng zhang
2009-11-27 4:12 ` Dave Korn
2009-11-27 4:43 ` yunfeng zhang [this message]
2009-11-27 4:46 ` Dave Korn
2009-11-27 13:35 ` Alexandre Oliva
2009-11-30 11:10 ` Yunfeng ZHANG
2009-11-27 4:58 ` Jie Zhang
2009-11-27 6:42 ` yunfeng zhang
2009-11-27 14:16 ` Ian Lance Taylor
2009-11-27 4:51 Dmitry Gorbachev
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