Migration of C++ application from 32 bit os to 64bit

Asked Aug 18 '16 at 03:14

Active Aug 18 '16 at 07:05

Viewed 296 times

I have a basic question related to the migration. I want to compile the application in 32 bit mode on 64bit platform. The main reason for that is a key third party dependent library is only available in 32 bit complied state.

Question here is whether I will use a 64 bit compiler with -m32 flag using all 32 bit dependent libraries linked to it. Or it should be a 32 bit compiler.

If I use a 32 bit compiler there are warnings related to discarded section etc.

Referenced in section .rodata of obj defined in discarded section gnu.linkonce.t of obj:

edited Aug 18 '16 at 07:05

JVApen

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asked Aug 18 '16 at 03:14

The Roy

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What compiler? What OS? – R Sahu Aug 18 '16 at 03:18
gcc 346 RHEL 4 to RHEL 6 – The Roy Aug 18 '16 at 03:18
Also - What warnings? – The Dark Aug 18 '16 at 03:18
Referenced in section .rodaya of obj defined in discarded section gnu.linkonce.t of obj – The Roy Aug 18 '16 at 03:28
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@Krythic I wish you could downvote comments right now. – RamblingMad Aug 18 '16 at 04:29
Interesting. I have never heard of a 64bit compiler that compiles 32bit executables. – Remy Lebeau Aug 18 '16 at 05:30
@DROY Can you add the warnings which the compiler is giving you? – JVApen Aug 18 '16 at 05:46
Referenced in section .rodata of obj defined in discarded section gnu.linkonce.t of obj – The Roy Aug 18 '16 at 05:57
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FYI: http://stackoverflow.com/questions/5333871/please-explain-this-linking-error-referenced-in-section-rodata – JVApen Aug 18 '16 at 06:07
Is there any other suggestion on this? – The Roy Aug 19 '16 at 15:44

Migration of C++ application from 32 bit os to 64bit

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