Re: objcopy -I binary etc... Was: C23 thoughts and opinions

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Sujet : Re: objcopy -I binary etc... Was: C23 thoughts and opinions
De : tr.17687 (at) *nospam* z991.linuxsc.com (Tim Rentsch)
Groupes : comp.lang.c
Date : 06. Jun 2024, 15:44:47
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <86tti6ku5c.fsf@linuxsc.com>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
User-Agent : Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux)
Michael S <already5chosen@yahoo.com> writes:

On Sat, 01 Jun 2024 17:22:57 -0700
Tim Rentsch <tr.17687@z991.linuxsc.com> wrote:

[..differences in gcc and clang that might be explained by ld...]

I expect you are right.  I run ld directly only rarely, and
certainly am no expert.  In my tests I was simply blindly
following the example shown in your posting (with some variations
after my attempts gave the wrong answer, trying to get it to
work).  It didn't occur to me to consider ld.
>
Using clang for the final link step always gave the right answer,
if I remember correctly.
>
I reproduced your findings.  The difference between gcc and clang is not
in ld, but in ld invocation options.
Specifically, gcc calls ld with -pie, clang calls ld without it.
gcc default behaviour can be overwritten with -no-pie switch.
I suppose that gcc4 has the same default as clang.

Makes sense.  Thank you for the explanation.

Date Sujet#  Auteur
31 May 24 * Re: C23 thoughts and opinions73bart
31 May 24 +* Re: C23 thoughts and opinions67Michael S
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6 Jun 24 ii    iii `* objcopy -I binary etc... Was: C23 thoughts and opinions2Michael S
6 Jun 24 ii    iii  `- Re: objcopy -I binary etc... Was: C23 thoughts and opinions1Tim Rentsch
1 Jun 24 ii    ii+- Re: C23 thoughts and opinions1David Brown
1 Jun 24 ii    ii+* Re: C23 thoughts and opinions2bart
4 Jun 24 ii    iii`- Re: C23 thoughts and opinions1Lawrence D'Oliveiro
4 Jun 24 ii    ii`- Re: Correct objcopy Usage (was Re: C23 thoughts and opinions)1Lawrence D'Oliveiro
1 Jun 24 ii    i`* Re: C23 thoughts and opinions4Michael S
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1 Jun 24 ii    `* Re: C23 thoughts and opinions2Michael S
2 Jun 24 ii     `- Re: C23 thoughts and opinions1Tim Rentsch
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31 May 24 +- Re: C23 thoughts and opinions1Kaz Kylheku
31 May 24 +- Re: C23 thoughts and opinions1Malcolm McLean
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