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Re: u-boot-am335x-boneblack -> u-boot-am335x-evm-boneblack


From: Maxim Cournoyer
Subject: Re: u-boot-am335x-boneblack -> u-boot-am335x-evm-boneblack
Date: Mon, 26 Dec 2022 21:48:11 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux)

Hi Vagrant,

Vagrant Cascadian <vagrant@debian.org> writes:

> On 2022-12-22, Maxim Cournoyer wrote:
>> Vagrant Cascadian <vagrant@debian.org> writes:
>>
>>> Wondering what necessitated this change from the old variable name to a
>>> new name...
>>>
>>> commit c04528d2a2597d79278833f3607c806278253446
>>> Author: Maxim Cournoyer <maxim.cournoyer@gmail.com>
>>> Date:   Tue Dec 20 21:25:27 2022 -0500
>>>
>>>     gnu: u-boot-am335x-evm-boneblack: Fix variable name.
>>>
>>>     * gnu/packages/bootloaders.scm (u-boot-am335x-boneblack): Rename to...
>>>     (u-boot-am335x-evm-boneblack), to match the package name.
>>>     * gnu/bootloader/u-boot.scm (u-boot-beaglebone-black-bootloader): Adjust
>>>     accordingly.
>>> ...
>>> diff --git a/gnu/packages/bootloaders.scm b/gnu/packages/bootloaders.scm
>>> index bd9f7bb577..c8b8adbc93 100644
>>> --- a/gnu/packages/bootloaders.scm
>>> +++ b/gnu/packages/bootloaders.scm
>>> @@ -889,7 +889,7 @@ (define*-public (make-u-boot-package board triplet
>>>  (define-public u-boot-malta
>>>    (make-u-boot-package "malta" "mips64el-linux-gnuabi64"))
>>>
>>> -(define-public u-boot-am335x-boneblack
>>> +(define-public u-boot-am335x-evm-boneblack
>>>    (make-u-boot-package
>>>     "am335x_evm" "arm-linux-gnueabihf"
>>>     ;; Patch out other device trees to build an image small enough to fit
>>>
>>> The u-boot-am335x-boneblack was named to match the original target that
>>> was removed from upstream, adapting the upstream am335x-evm to fit into
>>> a smaller gap in the partition tables... (e.g. 2MB partition offset
>>> instead of 4MB offset required by the default am335x-evm board
>>> configuration).
>>
>> The problem was that the *name* of the package was
>> "u-boot-am335x-evm-boneblack", as computed by the MAKE-U-BOOT-PACKAGE
>> procedure, which includes the board argument in its name (it's been like
>> this since its inception in 862e38d5518, 2017).
>>
>> If the previous variable name should have been its name, the name field
>> would have needed to be overridden to it (or perhaps we could introduce
>> a #:name argument that would take precedence over any cleverness).
>>
>> I noticed of the problem when trying to build the package; "guix build
>> u-boot-am335x-boneblack" would tell me it didn't exist.
>>
>> I considered making a deprecated alias but decided against, because in
>> the past we didn't when moving/renaming packages *variables*.
>
> Odd. I was certainy able to build u-boot-am335x-boneblack from commit
> 6b99afeef89233b71d113a63cf04a6b4b49a4679 when it was introduced in 2019,
> though it has been quite some time since I tested it...
>
> I will take a guess that it was commit
> c2c1dfdf5760873f1db86d14873f725a105f7feb which removed the "name" bit:

Oh, that explains it, thank you for digging a bit.

The following should return us to the previous name, fixing that
regression:

--8<---------------cut here---------------start------------->8---
modified   gnu/bootloader/u-boot.scm
@@ -144,7 +144,7 @@ (define u-boot-bootloader
 (define u-boot-beaglebone-black-bootloader
   (bootloader
    (inherit u-boot-bootloader)
-   (package u-boot-am335x-evm-boneblack)
+   (package u-boot-am335x-boneblack)
    (disk-image-installer install-beaglebone-black-u-boot)))
 
 (define u-boot-allwinner-bootloader
modified   gnu/packages/bootloaders.scm
@@ -890,17 +890,23 @@ (define*-public (make-u-boot-package board triplet
 (define-public u-boot-malta
   (make-u-boot-package "malta" "mips64el-linux-gnuabi64"))
 
-(define-public u-boot-am335x-evm-boneblack
-  (make-u-boot-package
-   "am335x_evm" "arm-linux-gnueabihf"
-   ;; Patch out other device trees to build an image small enough to fit
-   ;; within typical partitioning schemes where the first partition begins at
-   ;; sector 2048.
-   #:configs '("CONFIG_OF_LIST=\"am335x-evm am335x-boneblack\"")
-   #:name-suffix "-boneblack"
-   #:append-description "This U-Boot is built for the BeagleBone Black, which
-was removed upstream, adjusted from the am335x_evm build with several device
-trees removed so that it fits within common partitioning schemes."))
+(define-public u-boot-am335x-boneblack
+  (let ((base (make-u-boot-package
+               "am335x_evm" "arm-linux-gnueabihf"
+               ;; Patch out other device trees to build an image small enough
+               ;; to fit within typical partitioning schemes where the first
+               ;; partition begins at sector 2048.
+               #:configs '("CONFIG_OF_LIST=\"am335x-evm am335x-boneblack\"")
+               #:append-description
+               "This U-Boot is built for the BeagleBone Black, which was
+removed upstream, adjusted from the am335x_evm build with several device trees
+removed so that it fits within common partitioning schemes.")))
+    (package
+      (inherit base)
+      ;; The name is not derived from the board name on purpose as the config
+      ;; is modified per the comment above, parting from the default
+      ;; am335x_evm configuration.
+      (name "u-boot-am335x-boneblack"))))
 
 (define-public u-boot-am335x-evm
   (make-u-boot-package "am335x_evm" "arm-linux-gnueabihf"))
--8<---------------cut here---------------end--------------->8---

Does it look good to you?  If so, I'll commit it.

Happy holidays!

-- 
Thanks,
Maxim



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