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Chris Brannon

2 Nov 2009 2 Nov '09

1:57 p.m.

Here's a script to check the architecture-independence of a binary package. It only checks to see whether or not a tarball contains files that start with the ELF magic number, bytes 0x7f E L F. Maybe someone will find it useful. -- Chris

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Andrea Scarpino

2 Nov 2 Nov

2:04 p.m.

On 02/11/2009, Chris Brannon wrote:

Here's a script to check the architecture-independence of a binary package. It only checks to see whether or not a tarball contains files that start with the ELF magic number, bytes 0x7f E L F. Maybe someone will find it useful. Here, where? :)

-- Andrea `bash` Scarpino Arch Linux Developer

Gerardo Exequiel Pozzi

2:14 p.m.

New subject: [aur-general] script to check a binary package for architecture-independence

Chris Brannon wrote:

Here's a script to check the architecture-independence of a binary package. It only checks to see whether or not a tarball contains files that start with the ELF magic number, bytes 0x7f E L F. Maybe someone will find it useful.

-- Chris

Hello There is no attach here. [1] But only doing this check (ELF signature) is just a necessary condition but not sufficient. [2] Should also check the machine (sufficient), because there are packages for example AVR and ARM that from point of view of -any are "architecture-independence". (some "crazy" :P packages have SPARC ELFs) [3] And also (I din't see the script, so i just suppose), you also need to exactarc archives files (.a) and analize the content of each object with [1] and [2] Good Luck! -- Gerardo Exequiel Pozzi ( djgera ) http://www.djgera.com.ar KeyID: 0x1B8C330D Key fingerprint = 0CAA D5D4 CD85 4434 A219 76ED 39AB 221B 1B8C 330D

Chris Brannon

2:34 p.m.

Gerardo Exequiel Pozzi wrote:

Hello

There is no attach here.

The script is here: http://the-brannons.com/isanypkg The attachment must have been scrubbed. Plus, gmail doesn't give me copies of mail that I send to the list. Broken, broken gmail!

[2] Should also check the machine (sufficient), because there are packages for example AVR and ARM that from point of view of -any are "architecture-independence". (some "crazy" :P packages have SPARC ELFs) [3] And also (I din't see the script, so i just suppose), you also need to exactarc archives files (.a) and analize the content of each object

Thanks so much for your insight! Your guess was right; I forgot about members of ar archives. On second thought, I wonder if these sorts of checks should be done within namcap? -- Chris

Pierre Schmitz

2:38 p.m.

New subject: [aur-general] script to check a binary package for architecture-independence

On Mon, 02 Nov 2009 08:34:51 -0600, Chris Brannon wrote:

Gerardo Exequiel Pozzi wrote: On second thought, I wonder if these sorts of checks should be done within namcap?

Good idea. Maybe its best to file a feature request and attach you script there. -- Pierre Schmitz, https://users.archlinux.de/~pierre

Thomas Bächler

5:03 p.m.

New subject: [aur-general] script to check a binary package for architecture-independence

Chris Brannon schrieb:

Gerardo Exequiel Pozzi wrote:

...
Hello

There is no attach here.

The script is here: http://the-brannons.com/isanypkg The attachment must have been scrubbed. Plus, gmail doesn't give me copies of mail that I send to the list. Broken, broken gmail!

...
[2] Should also check the machine (sufficient), because there are packages for example AVR and ARM that from point of view of -any are "architecture-independence". (some "crazy" :P packages have SPARC ELFs) [3] And also (I din't see the script, so i just suppose), you also need to exactarc archives files (.a) and analize the content of each object

Thanks so much for your insight! Your guess was right; I forgot about members of ar archives.

On second thought, I wonder if these sorts of checks should be done within namcap?

They should. Two checks: 1) Is an arch=any package architecture-dependent -> error 2) Is an arch=whatever package architecture-independent -> warning If you know python and have the time, you should write a patch against namcap.git and mail it to Hugo. I told him once that it's a good feature, no idea if he got to it. You can check namcap.git to see if he did something, and check the bugtracker if there is a feature request already. Yay, I just looked at the script and it is in python already, so I guess a patch for namcap is in order :)

Abhishek Dasgupta

5:47 p.m.

2009/11/2 Thomas Bächler :

Chris Brannon schrieb:

...
On second thought, I wonder if these sorts of checks should be done within namcap?

They should. Two checks: 1) Is an arch=any package architecture-dependent -> error 2) Is an arch=whatever package architecture-independent -> warning

If you know python and have the time, you should write a patch against namcap.git and mail it to Hugo. I told him once that it's a good feature, no idea if he got to it. You can check namcap.git to see if he did something, and check the bugtracker if there is a feature request already.

It's not in namcap.git. You could look at elfflies.py - that already checks for ELF files in the package. This would fit in neatly there. Abhishek

Firmicus

2:48 p.m.

New subject: [aur-general] script to check a binary package for architecture-independence

Chris Brannon wrote:

Here's a script to check the architecture-independence of a binary package. It only checks to see whether or not a tarball contains files that start with the ELF magic number, bytes 0x7f E L F. Maybe someone will find it useful.

-- Chris

Thanks Chris. However I think Gerardo has already written such a script, and the result is available on this page: http://wiki.archlinux.org/index.php/DeveloperWiki:Unimportant_Rebuild_List#P... (which also includes community) F

Daenyth Blank

2:50 p.m.

On Mon, Nov 2, 2009 at 09:48, Firmicus wrote:

Thanks Chris. However I think Gerardo has already written such a script, I think he said he did it manually, or with a one-time bash hack

Firmicus

3:20 p.m.

New subject: [aur-general] script to check a binary package for architecture-independence

Daenyth Blank wrote:

On Mon, Nov 2, 2009 at 09:48, Firmicus wrote:

...
Thanks Chris. However I think Gerardo has already written such a script,

I think he said he did it manually, or with a one-time bash hack

RIght, and I also wrote that the list on the wiki includes community, which is simply wrong. Sorry! So, yes Chris, your contribution is more than welcome! F

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participants (8)

Abhishek Dasgupta
Andrea Scarpino
Chris Brannon
Daenyth Blank
Firmicus
Gerardo Exequiel Pozzi
Pierre Schmitz
Thomas Bächler