[ECOS] Error trying to exec 'cc1plus'

[ECOS] Error trying to exec 'cc1plus'

[Paul D. DeRocco]

I installed eCos 3.0 in a fresh directory (/opt/ecos3) under Cygwin, and
installed the arm-eabi tools in the default location. I can run the compiler
under the name gcc, because there is a version under that name in

    /opt/ecos3/gnutools/arm-eabi/arm-eabi/bin

but it complains that it can't find cc1plus.exe. I can also run the compiler
under its explicit name arm-eabi-gcc, which is found in

    /opt/ecos3/gnutools/arm-eabi/bin

and it works fine. The cc1plus executable is contained in

    /opt/ecos3/gnutools/arm-eabi/libexec/gcc/arm-eabi/4.3.2

The problem appears to be that the programs search path built into the
compiler includes the string

    ../libexec/gcc/arm-eabi/4.3.2

which works when appended to the arm-eabi-gcc location but not when appended
to the gcc location.

So my question is: why are we given versions of the commands under short
names, if they don't work? Is there some reason the commands with the short
names aren't just put into the same directory as the versions with the full
names?

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@ix.netcom.com


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Re: [ECOS] Error trying to exec 'cc1plus'

[Ross Younger]

Paul D. DeRocco wrote:
 > [bin/arm-eabi-gcc vs. arm-eabi/bin/gcc]
> So my question is: why are we given versions of the commands under short
> names, if they don't work? Is there some reason the commands with the short
> names aren't just put into the same directory as the versions with the full
> names?

You should always invoke a cross-compiler via its full name. The toolchain 
provides the short-named versions for its own internal use.

As a general rule you should only add the directory containing the 
full-named tools to your PATH - and this is what ecosenv.sh does - because 
on a typical machine the short-named tools would conflict with the 
host-native compiler and other tools in /usr/bin.


Ross

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