| linkimage difficulties: mixed case and multiple libraries [message #16199] |
Wed, 07 July 1999 00:00  |
Fred Knight
Messages: 6
Registered: May 1996
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Junior Member |
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I'd appreciate hearing about solutions to these problems.
1. I can't get linkimage to use a mixed-case function name under Solaris 2.
Here's a simple test:
name = 'openprot__7filebuf'
image = '/usr/lib/libC.so.3'
type = 1 ; function
linkimage,name,image,type
name = 'oct__Fli'
image = '/usr/lib/libC.so.3'
type = 1 ; function
linkimage,name,image,type
The first linkimage call works, but the second gives the error:
% LINKIMAGE: Error loading sharable executable.
Symbol: oct__fli, File = /usr/lib/libC.so.3
ld.so.1: /usr/local/idl/bin/bin.solaris2.sparc/idl: fatal:
oct__fli:
can't find symbol
I think the problem is the uppercase F.
2. I can't get linkimage to work when symbols aren't completely resolved in one
library. Here's a simple test with a local library that calls other libraries
name = 'sdv_waitdone'
image = '/usr/local/astb/lib/libairi.so'
type = 1 ; function
linkimage,name,image,type
The error message is:
% LINKIMAGE: Error loading sharable executable.
Symbol: sdv_waitdone, File = /usr/local/astb/lib/libairi.so
ld.so.1: /usr/local/idl/bin/bin.solaris2.sparc/idl: fatal:
relocation
error: file /usr/local/astb/lib/libairi.so: symbol
error_message_all_threads: referenced symbol not found
I don't have a solution for the first, except to use all lowercase. I can only
solve the second by putting all symbols in one library, but I would be
interested in a solution using LD_LIBRARY_PATH or something else. Possibly
answers to these questions are in the "Advanced Development Guide," which I
don't have, but I can't find any answers in the linkimage description in the
"Reference Guide."
Thanks, Fred
--
Fred Knight | knight@ll.mit.edu | 781 981 1053 | fax: 781 981 5359
C-490 | MIT Lincoln Laboratory | 244 Wood St. | Lexington, MA 02420-9108
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| Re: linkimage difficulties: mixed case and multiple libraries [message #16277 is a reply to message #16199] |
Fri, 09 July 1999 00:00  |
m.konijnenburg
Messages: 3
Registered: July 1999
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Junior Member |
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Hi,
In article <37837A15.D0681D93@ll.mit.edu>,
Fred Knight <knight@ll.mit.edu> wrote:
> I'd appreciate hearing about solutions to these problems.
>
> I don't have a solution for the first, except to use all lowercase. I
can only
> solve the second by putting all symbols in one library, but I would be
> interested in a solution using LD_LIBRARY_PATH or something else.
Possibly
> answers to these questions are in the "Advanced Development Guide,"
which I
> don't have, but I can't find any answers in the linkimage description
in the
> "Reference Guide."
@Sorry, I can't help you with the linkimage problem. The documentation
however can be downloaded from RSI's ftp server.
(ftp://ftp.rsinc.com/pub/idl_5.2/info/docs/)
The name has changed from "advanced development guide" to "external
development guide" (edg.pdf).
If you have the sourcecode of the library you want to include, consider
making a dynamic loadable module. It is a bit more work, but it works
easier in IDL. This is the same way RSI incorporates new routines in
IDL.
Best regards,
Marco
------------------------------------------------------------ ----
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_ _ Kruislaan 407
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Tel: (+31) 020 6081234
mailto:m.konijnenburg@amolf.nl Fax: (+31) 020 6684106
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