topic How do you generate ELF object file output using g++ compiler? in Operating System - Linux

How do you generate ELF object file output using g++ compiler?

Maribeth Romeo — Mon, 30 Jan 2012 09:20:47 GMT

I am trying to compile a C++ program using g++. I need the object files to be "ELF-64 relocatable object file - PA-RISC 2.0 (LP64)" files. When I use g++ to compile, I end up with "PA-RISC1.1 relocatable object" object files. How can I tell the g++ compiler to change the object file format? I don't have HP's c++ compiler, so I'm stuck with g++. Thanks.

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P.S. This Thread has been moved from HP-UX --> Netwrking to HP-UX --> Languages & Scripting - Forum Moderator

Re: How do you generate ELF object file output using g++ compiler?

Piergiacomo Perini — Tue, 10 Jan 2006 11:02:20 GMT

Hi Maribeth,

i don't use g++, but in order to obtain ELF objects in HP's c++ compiler
"+DAportable" option in used.
Maybe something similar in g++?

regards

Re: How do you generate ELF object file output using g++ compiler?

Maribeth Romeo — Tue, 10 Jan 2006 11:07:21 GMT

Well, that's exactly what I'm trying to figure out. I don't know what that option is. I've been pouring over the gcc documentation, but haven't found it yet.

Re: How do you generate ELF object file output using g++ compiler?

Piergiacomo Perini — Tue, 10 Jan 2006 11:14:27 GMT

right, DAportable seems not be a option of g++.
So, try to "googleize" or try this
http://lists.gnu.org/archive/html/

regards

Re: How do you generate ELF object file output using g++ compiler?

Peter Godron — Tue, 10 Jan 2006 11:15:06 GMT

Maribeth,
-melf according to doc:
"Generate an executable in the ELF format, rather than the default'mmo' format used by the mmix simulalator"

Re: How do you generate ELF object file output using g++ compiler?

Maribeth Romeo — Tue, 10 Jan 2006 11:22:03 GMT

That's not an option for HP-UX. The doc says, "-melf - Legacy no-op option only recognized with the cris-axis-elf and cris-axis-linuxgnu targets."

If you type "gcc -melf my.c" on the command line, you will get "invalid options 'elf'"

This doesn't seem like an unreasonable thing to do, does it?

Re: How do you generate ELF object file output using g++ compiler?

Ermin Borovac — Tue, 10 Jan 2006 23:48:55 GMT

You'll need 64-bit version of gcc. One place you can it from is http://www.hp.com/go/gcc, click on 'GCC for HP-UX' link and download HP-GCC PA-RISC LP64 (either 3.x or 4.x).

Re: How do you generate ELF object file output using g++ compiler?

Arunvijai_4 — Tue, 10 Jan 2006 23:52:54 GMT

Hello,

You need to download 64 bit GCC for generating 64 bit objects. Default GCC what you download is capable of generating 32 bit objects. You can download from,

http://h21007.www2.hp.com/dspp/tech/tech_TechSoftwareDetailPage_IDX/1,1703,7663,00.html

Remember to download 64 bit version. It is HP Supported GCC.

-Arun

Re: How do you generate ELF object file output using g++ compiler?

Muthukumar_5 — Tue, 10 Jan 2006 23:59:38 GMT

You have to use +DA2.0 option with aCC or cc compiler.

http://groups.google.com/group/comp.soft-sys.ace/browse_thread/thread/74e72c0f9078d9b9/ba55ca761d7c8fa0%23ba55ca761d7c8fa0?sa=X&oi=groupsr&start=0&num=3

--
Muthu

Re: How do you generate ELF object file output using g++ compiler?

Maribeth Romeo — Wed, 11 Jan 2006 08:43:03 GMT

You are all right. I chose to use aCC only because of time constraints. I have to pay for it, but it is probably quicker than getting another version of gcc. Thanks to all of you.