Hello Andreas,
Long time, no see but I still follow Squeak and my Squeak Help on my site. See
http://www.maartensz.org/computing/computingFrame.htm
which I wrote for Squeak 3.7 is still used daily on my site by quite a few visitors, so apparently it still satisfies a need.
My main reason to keep following Squeak is interest (it looks a lot better now than a few years ago) in HLL, Smalltalk and Morphic, but my own main interest in computing and programming these days is mostly in assembly.
And this caused my answering this thread, though it doesn't answer Ross Boylan's question for Linux, which I don't run.
You wrote, in reply to him:
Ross Boylan wrote:
I'm trying to figure out if I'm setup so I can use some of the font packages. I'm running a 3.10 image (but 3.9 VM) on Linux (Debian Lenny).
How do I get a list of all plugins?
You don't. External, unloaded plugins can't be enumerated since they are just platform shared libraries (DLLs). They could be found anywhere in your search path which makes it very difficult to list them explicitly.
On Windows, though, there are nifty great and small assembly-related programs that answer many queries, also about what is really there in Squeak.exe, all laid out neatly.
A great one for this (also in size and capacities) is OllyDbg, by Oleg Yushuck; a small one (idem) is PEView by Wayne Radburn. Both are at various places on the internet, and easily found with Google.
The last one is most convenient here. The one I used is 0.9.8.0 that takes - unzipped - all of 67 Kb (it's programmed in assembly, you see, and there is no image at all...) which neatly shows in its SECTION.edata (e.g. EXPORT Address Table) which primitives are in the executable. Likewise, its SECTION.idata displays the loaded DLLs.
To find this and much more, all one needs is PEView and opening Squeak.exe in it, which then lists it quite neatly. If one knows some C or Assembly this is all quite revealing and interesting, and one item to be found thus at various places is e.g. "Andreas Raab", at least in the version of Squeak.exe I inspected this way.
In any case... some questions about Squeak.exe can definitely be answered quite easily and fastly on Windows using PEView.
Regards,
Maarten.
- Re: How to get a list of all plugins in VM (Andreas Raab)
Message: 13 Date: Mon, 23 Mar 2009 15:55:29 -0700 From: Andreas Raab andreas.raab@gmx.de Subject: [squeak-dev] Re: How to get a list of all plugins in VM To: The general-purpose Squeak developers list squeak-dev@lists.squeakfoundation.org Cc: ross@biostat.ucsf.edu Message-ID: 49C81361.7040308@gmx.de Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Ross Boylan wrote:
I'm trying to figure out if I'm setup so I can use some of the font packages. I'm running a 3.10 image (but 3.9 VM) on Linux (Debian Lenny).
How do I get a list of all plugins?
You don't. External, unloaded plugins can't be enumerated since they are just platform shared libraries (DLLs). They could be found anywhere in your search path which makes it very difficult to list them explicitly.
The right way to solve your problem is to provide an entry point in your plugin that can be used to detect whether the plugin is available. A useful thing to do here is to provide a primitiveVersion because later on you'll be able to use that to detect whether the user has an outdated plugin version. Then you can simply implement something like:
MyClass>>pluginVersion "Returns the plugin version, or nil if the plugin cannot be loaded" <primitive: 'primitiveVersion' module: 'MyPlugin'> ^nil "indicates failure"
MyClass>>isPluginPresent "Returns true if the plugin is present" ^self pluginVersion notNil
MyClass>>isPluginOfTheRightVersion "Returns true if the plugin is of the right version" ^(self pluginVersion ifNil:[0]) > self minimumVersion
Cheers,
- Andreas
2009/3/24 Maarten Maartensz maartens@xs4all.nl:
Hello Andreas,
Long time, no see but I still follow Squeak and my Squeak Help on my site. See
http://www.maartensz.org/computing/computingFrame.htm
which I wrote for Squeak 3.7 is still used daily on my site by quite a few visitors, so apparently it still satisfies a need.
My main reason to keep following Squeak is interest (it looks a lot better now than a few years ago) in HLL, Smalltalk and Morphic, but my own main interest in computing and programming these days is mostly in assembly.
And this caused my answering this thread, though it doesn't answer Ross Boylan's question for Linux, which I don't run.
You wrote, in reply to him:
Ross Boylan wrote:
I'm trying to figure out if I'm setup so I can use some of the font packages. I'm running a 3.10 image (but 3.9 VM) on Linux (Debian Lenny).
How do I get a list of all plugins?
You don't. External, unloaded plugins can't be enumerated since they are just platform shared libraries (DLLs). They could be found anywhere in your search path which makes it very difficult to list them explicitly.
On Windows, though, there are nifty great and small assembly-related programs that answer many queries, also about what is really there in Squeak.exe, all laid out neatly.
A great one for this (also in size and capacities) is OllyDbg, by Oleg Yushuck; a small one (idem) is PEView by Wayne Radburn. Both are at various places on the internet, and easily found with Google.
The last one is most convenient here. The one I used is 0.9.8.0 that takes - unzipped - all of 67 Kb (it's programmed in assembly, you see, and there is no image at all...) which neatly shows in its SECTION.edata (e.g. EXPORT Address Table) which primitives are in the executable. Likewise, its SECTION.idata displays the loaded DLLs.
To find this and much more, all one needs is PEView and opening Squeak.exe in it, which then lists it quite neatly. If one knows some C or Assembly this is all quite revealing and interesting, and one item to be found thus at various places is e.g. "Andreas Raab", at least in the version of Squeak.exe I inspected this way.
In any case... some questions about Squeak.exe can definitely be answered quite easily and fastly on Windows using PEView.
Why use reverse engineering tools, where its more appropriate to use reflection?
Regards,
Maarten.
13. Re: How to get a list of all plugins in VM (Andreas Raab) Message: 13 Date: Mon, 23 Mar 2009 15:55:29 -0700 From: Andreas Raab andreas.raab@gmx.de Subject: [squeak-dev] Re: How to get a list of all plugins in VM To: The general-purpose Squeak developers list squeak-dev@lists.squeakfoundation.org Cc: ross@biostat.ucsf.edu Message-ID: 49C81361.7040308@gmx.de Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Ross Boylan wrote:
I'm trying to figure out if I'm setup so I can use some of the font packages. I'm running a 3.10 image (but 3.9 VM) on Linux (Debian Lenny).
How do I get a list of all plugins?
You don't. External, unloaded plugins can't be enumerated since they are just platform shared libraries (DLLs). They could be found anywhere in your search path which makes it very difficult to list them explicitly.
The right way to solve your problem is to provide an entry point in your plugin that can be used to detect whether the plugin is available. A useful thing to do here is to provide a primitiveVersion because later on you'll be able to use that to detect whether the user has an outdated plugin version. Then you can simply implement something like:
MyClass>>pluginVersion "Returns the plugin version, or nil if the plugin cannot be loaded" <primitive: 'primitiveVersion' module: 'MyPlugin'> ^nil "indicates failure"
MyClass>>isPluginPresent "Returns true if the plugin is present" ^self pluginVersion notNil
MyClass>>isPluginOfTheRightVersion "Returns true if the plugin is of the right version" ^(self pluginVersion ifNil:[0]) > self minimumVersion
Cheers, - Andreas
squeak-dev@lists.squeakfoundation.org
-
Igor Stasenko -
Maarten Maartensz