Smalltalk - Re: Z3950 on OSX: module yaz3 not found

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Re: Z3950 on OSX: module yaz3 not found

Posted by laurent laffont on Dec 20, 2010; 9:10pm
URL: https://forum.world.st/Z3950-on-OSX-module-yaz3-not-found-tp3094295p3096166.html

Hi Hernan,

the strace equivalent on OSX seems to be dtruss (yes I'm learning OSX too :)

sudo dtruss -p [pid of process]

in the trace I have this:

stat("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3.bundle/Contents/MacOS/yaz3\0", 0xBFF59440, 0xBFF5AB28) = -1 Err#2

stat64("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3.bundle/Contents/MacOS/yaz3\0", 0xBFF5892C, 0xBFF5AB28) = -1 Err#2

stat("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3\0", 0xBFF59440, 0xBFF5AB28) = 0 0

stat64("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3\0", 0xBFF5892C, 0xBFF5AB28) = 0 0

open("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3\0", 0x0, 0x0) = 12 0

pread(0xC, "\317\372\355\376\a\0", 0x1000, 0x0) = 4096 0

close(0xC) = 0 0

stat("/Users/laurentlaffont/Downloads/Plugins/yaz3.bundle/Contents/MacOS/yaz3\0", 0xBFF59440, 0x1000) = -1 Err#2

stat64("/Users/laurentlaffont/Downloads/Plugins/yaz3.bundle/Contents/MacOS/yaz3\0", 0xBFF5892C, 0x1000) = -1 Err#2

stat("/Users/laurentlaffont/Downloads/Plugins/yaz3\0", 0xBFF59440, 0x1000) = -1 Err#2

stat64("/Users/laurentlaffont/Downloads/Plugins/yaz3\0", 0xBFF5892C, 0x1000) = -1 Err#2

so it looks like the VM is trying to find yaz3 at non standard Unix places (I don't know if it's SqueakVM or OSX related).

I've created Contents/Resources/yaz3.bundle/Contents/MacOS/, put yaz lib there, ln -s libyaz.3.dylib yaz3 but no success.

I've read good post http://forum.world.st/FFI-Documentation-td2225150.html :

Module Location - where the external library file lives
	- depends on the platform
		- Mac
			- pre Snow Leopard
				- checks VM path and common library paths
			- Snow Leopard
				- only looks in VM bundle's Resources file, you must either [5]:
					- store all external libraries there
					- ln -s path/to/library path/to/VM/Resources/library_name
					- Change the VM's Info.plist "SqueakPluginsBuiltInOrLocalOnly" key from "true" to "false."

For this SqueakPluginsBuiltInOrLocalOnly I suppose I need to compile a VM ?

Cheers,

Laurent Laffont

On Mon, Dec 20, 2010 at 4:12 PM, Hernán Morales Durand <[hidden email]> wrote:

Hi Laurent

I've read there is a couple of system calll monitors in MacOS, ktrace
and dtrace (http://en.wikipedia.org/wiki/Ktrace ,
http://en.wikipedia.org/wiki/DTrace) so you may attach to the VM and
see what's missing?
Cheers,

Hernán

2010/12/20 laurent laffont <[hidden email]>:

> Thanks Hernan.
> It still doesn't work. I've also tried to play with LD_LOAD_PATH /
> LD_LIBRARY_PATH no success.... I want to make it work so I need to learn :)
>
> For the mangled function names, on Linux and OSX there's nm.
> Here's what I get:
> $ nm -g libyaz.3.dylib | grep ZOOM_connection_create
> 0000000000046a30 T _ZOOM_connection_create
> Cheers,
> Laurent
>
> On Sun, Dec 19, 2010 at 6:23 PM, Hernán Morales Durand
> <[hidden email]> wrote:
>>
>> Hi Laurent,
>>
>> Thanks for reporting. The correct #moduleName for MacOS was missing,
>> I've uploaded a new version answering 'libyaz.3.dylib' which I guess
>> is the corresponding for 'yaz3.dll' (according to
>> http://en.wikipedia.org/wiki/Dynamic_library#Naming ).
>>
>> I haven't access to a MacOS, but in Windows I've had to find the
>> mangled function names (i.e. _ZOOM_connection_create@4) so FFI can
>> find the function addresses and you don't get the classic "Error:
>> Unable to find function address". I don't know if it's related since
>> talks about C++, but you may want to check
>> http://wiki.squeak.org/squeak/3735
>>
>> The tool I've used to find the mangled function names in Windows is
>> the Steve Miller's Dependency Walker http://www.dependencywalker.com/
>>
>> 2010/12/19 laurent laffont <[hidden email]>:
>> > Hi,
>> >
>> > I want to use http://www.squeaksource.com/Z3950
>> > Following install instructions, I've dowloaded yaz sources (I've tried
>> > 4.1.2
>> > and 3.0.52) as it seems there's no binary for OSX, ./configure && make
>> > &&
>> > make install.
>> > Then using latest Seaside One Click image I've copied
>> > /usr/local/lib/*yaz*
>> > in Seaside.app/Contents/MacOS
>> > $ ls ~/Downloads/Seaside.app/Contents/MacOS/
>> > Squeak VM Opt libyaz.a libyaz.la
>> > libyaz_icu.a libyaz_icu.la libyaz_server.a
>> > libyaz_server.la libyaz.3.dylib libyaz.dylib
>> > libyaz_icu.3.dylib libyaz_icu.dylib libyaz_server.3.dylib
>> > libyaz_server.dylib
>> >
>> >
>> > But then I have a External Module Not Found on
>> > YAZPQFFFILibrary>>createParser
>> > " YAZPQDFFILibrary default createParser "
>> > <cdecl: YAZPQFParser 'yaz_pqf_create' (void) module: 'yaz3'>
>> > ^ self externalCallFailed
>> >
>> > Any hint ?
>> > Cheers,
>> > Laurent Laffont -- FFI newbie
>> >
>> > Pharo Smalltalk Screencasts: http://www.pharocasts.com/
>> > Blog: http://magaloma.blogspot.com/
>> >
>>
>> --
>> Hernán Morales
>> Information Technology Manager,
>> Institute of Veterinary Genetics.
>> National Scientific and Technical Research Council (CONICET).
>> La Plata (1900), Buenos Aires, Argentina.
>> Telephone: +54 (0221) 421-1799.
>> Internal: 422
>> Fax: 425-7980 or 421-1799.
>
>