modules-interest

Word too long

[Henrik W. <hen...@er...>]

Hi

How many characters can a env. variable contain in tcsh ?

We have many tools in our ASIC design flow and designers
very often  gets this " Word too long" problem.   I tried using
"wrapper-scripts" instead of setting the PATH, but it's not
feasible to create and maintain a couple of hundred  wrappers.

Someone solved this problem ?
Is there a shell that does support "bigger" variable  sizes.

/Henrik Westrell

+---------------------------------------------------------------+
| Henrik Westrell               Methods & Tools                 |
|                                                               |
| ERICSSON RADIO SYSTEMS AB     hen...@er... |
| Torshamnsgatan 30A            Telephone: +46 (0)8 40 45575    |
| SE-164 80 STOCKHOLM           Fax: +46 (0)8 752 9793          |
| SWEDEN                        Cellular: +46 (0)70 590 8968    |
+---------------------------------------------------------------+

Re: Word too long

[Assar W. <as...@si...>]

Henrik Westrell <hen...@er...> writes:
> How many characters can a env. variable contain in tcsh ?

Typically 1024.

> Someone solved this problem ?

Either just bump BUFSIZE in sh.h and re-build tcsh, or

> Is there a shell that does support "bigger" variable  sizes.

find a shell without this problem such as bash or zsh.

/assar

Re: Word too long

[Dave B. <ba...@ho...>]

Henrik:

Due to the length of our paths to executables, and the number of paths
we must use, we have had to go the route of updating 'BUFSIZE' from 1024
(the default) to 8192 (we probably could get away with 2048, but figured
that with 8192 we wouldn't have to rebuild for a while).

Our other problem was that /bin/csh was used for a lot of our build
process, but 1024 characters were not enough, so we've switched out our
/bin/csh for an enhanced version of tcsh.  Our shell is no longer a
holdup in this regard (some of the other tools, however ....).

Cheers,
Dave

-- 
Dave Barnett	Software Support Engineer	x1434


Never attribute to malice what could fairly be attributed to stupidity.

RE: Word too long

[Leo B. <le...@le...>]

Henrik Westrell wrote:

> How many characters can a env. variable contain in tcsh ?
> 
> We have many tools in our ASIC design flow and designers
> very often  gets this " Word too long" problem.   I tried using
> "wrapper-scripts" instead of setting the PATH, but it's not
> feasible to create and maintain a couple of hundred  wrappers.

Good day, Henrik.

Others have already tackled the env size question, but I'm
curious as to how you ended up with a couple of hundred unique
applications in an ASIC environment.  I've seen a few different
environments over the years but none of the companies have had
more than twenty-five applications (give or take) to support.
Multiple versions, to be sure, but one wrapper usually took
care of that.

Just curious!

Cheers,

- Leo

Re: Word too long

[Mark L. <la...@mi...>]

Just for clarification, the limit is not on the environment variable
length (since env vars are shell independent). The limit is on the input
command line of tcsh. If you append to PATH,

 setenv PATH ${PATH}:/blah/blah

and path is already about 1000 characters, then this command will fail,
since the whole line expands to more than 1024 characters.  In tcsh
(i've got 6.09.00), edit "config_f.h" and change it to read
'#define
BUFSIZE 0x10000.' and recompile.


-Mark


Mark Lakata
MIPS Technologies      
1225 Charleston Road   
Mountain View, CA 94043
phone 650-567-5170
fax   650-567-5002
email la...@mi...

On Fri, 17 Mar 2000, Henrik Westrell wrote:

> Hi
> 
> How many characters can a env. variable contain in tcsh ?
> 
> We have many tools in our ASIC design flow and designers
> very often  gets this " Word too long" problem.   I tried using
> "wrapper-scripts" instead of setting the PATH, but it's not
> feasible to create and maintain a couple of hundred  wrappers.
> 
> Someone solved this problem ?
> Is there a shell that does support "bigger" variable  sizes.
> 
> /Henrik Westrell
> 
> +---------------------------------------------------------------+
> | Henrik Westrell               Methods & Tools                 |
> |                                                               |
> | ERICSSON RADIO SYSTEMS AB     hen...@er... |
> | Torshamnsgatan 30A            Telephone: +46 (0)8 40 45575    |
> | SE-164 80 STOCKHOLM           Fax: +46 (0)8 752 9793          |
> | SWEDEN                        Cellular: +46 (0)70 590 8968    |
> +---------------------------------------------------------------+
> 
> 
> 

Word NOT too long....

[Henrik W. <hen...@er...>]

Hi all

Thanks all,  for helping me with my PATH problem ...
We recomplied tcsh with BUFSIZE = 2k

 Nemas Problemas !

Regards,
Hemrik



--

+---------------------------------------------------------------+
| Henrik Westrell               Methods & Tools                 |
|                                                               |
| ERICSSON RADIO SYSTEMS AB     hen...@er... |
| Torshamnsgatan 30A            Telephone: +46 (0)8 40 45575    |
| SE-164 80 STOCKHOLM           Fax: +46 (0)8 752 9793          |
| SWEDEN                        Cellular: +46 (0)70 590 8968    |
+---------------------------------------------------------------+