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The Something Awful Forums > Discussion > Serious Hardware/Software Crap > YOSPOS > Embedded Linux: It's Linux, but somehow worse
 
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outhole surfer
Mar 18, 2003

DoomTrainPhD posted:


- Having more than one config means nothing to Buildroot, and both are built independently of each other, so no host-tool sharing.


I see you have not experienced the glory that is make sdk combined with an external tool chain.

Split your toolchain config off into something like sdk_defconfig:

code:
BR2_x86_64=y
BR2_REPRODUCIBLE=y
BR2_TOOLCHAIN_BUILDROOT_VENDOR="brc"
BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
BR2_BINUTILS_VERSION_2_32_X=y
BR2_TOOLCHAIN_BUILDROOT_CXX=y
build it with make sdk

then reference the created artifact like this:

code:
BR2_x86_64=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
BR2_TOOLCHAIN_EXTERNAL_URL="https://blah.com/your-sdk.tgz"
BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
BR2_TOOLCHAIN_EXTERNAL_CXX=y
BR2_PACKAGE_REDIS=y

* # ¿ Jan 12, 2022 03:07
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# ¿ Apr 27, 2024 17:33
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outhole surfer
Mar 18, 2003

Lady Radia posted:

where the heck could i get started messing around in embedded linux? it feels neat as hell

Start with the second half of the first post in the thread -- the bit about buildroot.

Look in configs/ and find a board you own or can buy.

gently caress around with menuconfig.

Find another hobby to kill time while you constantly rebuild your toolchain and/or image.

* # ¿ Jan 18, 2022 23:42
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outhole surfer
Mar 18, 2003

DoomTrainPhD posted:

Get a Raspberry Pi 4, an sdcard reader, and a Uart cable

Then, choose a SDK. There are two major ones:
- Yocto
- Buildroot

Buildroot tends to be much easier (I am biased) and Yocto has more packages, although the non-core packages are of questionable quality and they range from up-to-date to horribly old.

Buildroot has an IRC channel at irc.oftc.net #buildroot
(Note: Most developers for Buildroot are in UTC+2 time.)

Yocto has an IRC channel at irc.libera.chat #yocto

Go crazy!

RPi sits somewhere between obscenely overpriced and unobtainium right now.

Get a ROCKPro64 for something that's affordably obtainable and supports a project worth supporting.

* # ¿ Jan 19, 2022 00:47
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outhole surfer
Mar 18, 2003

 yocto. not even once.

* # ¿ Nov 12, 2022 03:23
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outhole surfer
Mar 18, 2003

nudgenudgetilt posted:

yocto. not even once.
* # ¿ Nov 13, 2022 02:08
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outhole surfer
Mar 18, 2003

 i wish buildroot had support for modern nvidia drivers

* # ¿ Mar 27, 2023 01:12
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outhole surfer
Mar 18, 2003

 yeah, i think it tops out with pascal cards right now

* # ¿ Mar 27, 2023 01:26
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outhole surfer
Mar 18, 2003

FlapYoJacks posted:

Here's a patch that updates the nvidia-driver package. Apply with 'patch -p1 <' like normal.

There is a discussion about updating the NVIDIA drivers to the 500 series here. Seems like they want a split package for legacy support and nobody got around to it.

:yosnice:

* # ¿ Mar 27, 2023 11:07
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outhole surfer
Mar 18, 2003

FlapYoJacks posted:

15M Jul 18 16:43 libflutter_engine.so

gently caress you Google I win.

you ported their bullshit to a new platform for free.... seems like google still won

* # ¿ Jul 19, 2023 02:25
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outhole surfer
Mar 18, 2003

 buildroot is simply the tits for kernel development

god i love being able to just build an efi binary with my target kernel and tests all bundled up

* # ¿ Oct 13, 2023 18:43
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outhole surfer
Mar 18, 2003

 yocto, passing around binaries while yelling "look how reproducible i am!" since whenever the gently caress

* # ¿ Nov 27, 2023 19:42
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# ¿ Apr 27, 2024 17:33
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outhole surfer
Mar 18, 2003

 just split this binary file up into 5 chunks, and bam file is 100% reproducible. you just cat together the 5 chunks!

* # ¿ Nov 27, 2023 19:43
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The Something Awful Forums > Discussion > Serious Hardware/Software Crap > YOSPOS > Embedded Linux: It's Linux, but somehow worse