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Subject: Re: 64-bit EPICS anyone?
From: "Zhijian Yin (ZY)" <[email protected]>
To: "Ernest L. Williams Jr." <[email protected]>
Cc: EPICS tech-talk <[email protected]>
Date: Fri, 14 Oct 2005 15:16:43 -0400
Ernest L. Williams Jr. wrote:

Compilation worked very well and was extremely fast, however, it is not
64-bit.  When the compilation is complete what you get is a 32-bit
application running on a 64-bit OS.  So basically, when we run EPICS it
the linux OS is in 32-bit compatibility mode.

To achieve the 64-bit mode we will have to throw the "-m64" flag to the
GCC compiler.

This is my next step but I sense there will be trouble as some of my
colleagues have forewarned me.


Thanks for clear this up.

However, the binary I got, for example, 'file medm' shows

medm: ELF 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for GNU/Linux 2.6.0, dynamically linked (uses shared libs), not stripped

How can it be a 32-bit application?

Just start to play x86_64 linux, sorry for the "rudimentary" question.


ZY

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Re: 64-bit EPICS anyone? Ernest L. Williams Jr.
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64-bit EPICS anyone? Ernest L. Williams Jr.
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Re: 64-bit EPICS anyone? Ernest L. Williams Jr.

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