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<JaMa>
rburton: I'm seeing a lot of buildpaths QA issues with python3-pandas, are all your changes already merged? if yes, I'll start looking why they don't work in our builds
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<ThomasRoos>
Good morning,
<ThomasRoos>
is there an easy wifi setup (software, layer) for a raspberry pi, like setting up a local access point, connect with mobile, set credentials for the yocto raspberry pi image to use?
<landgraf>
ThomasRoos: nmcli?
<landgraf>
it's part of meta-oe/meta-networking iirc
<ThomasRoos>
If there is no wifi set on the device it should setup a default wifi access point a user can connect to and setup the real wifi network. Something like this here: https://github.com/balena-os/wifi-connect
<ak77>
Can I mix match bitbake and other branches, namely, I use scarthgap, but bitbake has troubles with '@' in name. I am trying to do crates like parser for package-lock.json, and there package names have '@' in them
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<ak77>
and I saw some patch for bitbake to allow such names,... but i don't know if it's in 2024-04.4-scarthgap
<ak77>
chokes on line like 'SRC_URI[@babel/helper-string-parser-7.25.7.sha512sum] = "....
<ak77>
... on @ and on /
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<usvi>
rburton: it seems the build path affects what kind of binary a recipe builds. to me this is a huge flaw or misconfiguration somewhere
<usvi>
we have ran now tons of testing, with multiple virtual machine platforms, multiple operating system versions. they all produce exactly the same binaries if the build directory is the same
<usvi>
I would expect the build OS version to change things (if anything was to change), but surprisingly, it does not
<usvi>
I did some tests of building hello world C program without yocto
<usvi>
on multiple directories
<usvi>
when stripped, the binaries are always identical
<usvi>
which is the sane assumption for all regular builds
<RP>
usvi: we test our core heavily and our default configurations produce binaries that are build path independent. We have automated testing to catch regressions
<usvi>
RP: yes, that is exactly how it should be
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<RP>
usvi: even our unstripped binaries are identical as we process the debug info to be path independent
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<usvi>
RP: nicely done :)
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<rburton>
usvi: unless you use -ffile-prefix-map and friends then any use of __FILE__ etc will embed build paths in the binary, but if they disappear after a strip its entirely debug symbols so -fdebug-prefix-map will fix that. we set it in the default build flags but makefiles might be ignoring them, so you'll have to chase. in particular, assembler fragments are good at forgetting to pass the right flags.
<rburton>
diffoscope will tell you exactly where the differences are
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<Slider>
Hello, there is a easy way to modifie a uboot .cfg file before using it inside SRC_URI ? I have tried python anonymous method but the .cfg is used before.The goal is to insert an auto generated CONFIG_AUTOBOOT_STOP_STR_SHA256. Thanks
<rburton>
Slider: a task before do_configure but after do_unpack can modify the files in WORKDIR
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<Slider>
rburton I have tried and .cfg look parsed: modification are done in WORKDIR but not inside {B}/.config
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<usvi>
RP: I cannot get the right keywords for google to yield anything. do you have any hints for build path -independency?
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<RP>
usvi: in what context? Do you mean how YP achieves it?
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<usvi>
RP: I'll get back to you later, I will first try a minimal test case demonstrating my problem
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<ak77>
hmm. how does one collect licenses of rust crates?
<RP>
usvi: the usual cause of issues are flags like DEBUG_PREFIX_MAP not being passed to the right places
<RP>
(flags like those in that variable)
<rburton>
with diffoscope output its usually a trivial to identify where the problem is exactly
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<dl9pf>
I need to list all dependencies recursively (not just DEPENDS but also the DEPENDS of the DEPENDS) for a package FOO
<dl9pf>
any pointers ?
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<sotaoverride>
dl9pf: try something like this - bitbake -g recipe-name -u depexp
<RP>
dl9pf: bitbake FOO -c package -g and look at the .dot file?
<dl9pf>
ok, -c package ... got ya
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<rburton>
RP: you're not going to like a patch i just posted but i had it from my explorations into sstate :)
<usvi>
RP: I made a sample project , helloworld, now that I compile it it works every time with same checksum regardless of the build path
<RP>
rburton: I can't really argue against it can I
<RP>
rburton: the zstd thing is a problem iirc though
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<RP>
rburton: I know there were problems with pigz, perhaps this didn't carry over to zstd
<rburton>
usvi: as we've said, unless you can replicate the "my binaries are different if i build in different trees" for recipes in oe-core then it's a problem in your specific package
<rburton>
RP: as pzstd is in hosttools then surely its always there
<RP>
rburton: I remember problems but those were probably with races around pigz-native
<RP>
I should post more patches which I know people won't like
<RP>
rburton: I guess I was just leaving the door open to pstdz being optional and built as a native
<rburton>
i'm sure you have plenty!
<RP>
rburton: oh yes, but I just don't send/share most of them
<rburton>
i expect the code has grown organically and it wasn't designed that way
<RP>
rburton: we did support pigz-native
<RP>
the tools available on distros used to be problematic
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<usvi>
rburton: I have no idea anymore about what is happening. I think I'm crazy
<rburton>
usvi: is it all binaries that are different, or just one specific recipe?
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<usvi>
rburton: originally all compiled projects
<usvi>
we have for example a canbus-handler and a battery monitor, c/c++. checksums were different
<nerdboy>
so i looked in the manuals and it wasn't super clear about precedence of WKS_FILE vs WKS_FILES and my custom xilinx machine bits set a default ?= value for WKS_FILE but it;s getting overridden by meta-xilinx-core/wic/xilinx-default-sd.wks which is set via WKS_FILES ?=
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<nerdboy>
in the bbclass it *looks like* i should not set WKS_FILES because we have 2 image recipes with image_name.wks
<nerdboy>
is there a correct/preferred way to handle that ^^ collision?
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<nerdboy>
from that ^^ and the manuals it seems like meta-xilinx-core should not be using WKS_FILES to set their default, rather that should be WKS_FILE ?= "xilinx-default-sd.wks"
<nerdboy>
<sigh> i'd make an issue if their github repo had issues enabled...
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<mattsm>
I am toying around with a multilib image (32-bit rootfs and 64-bit kernel). Presumably fairly normal.. but u-boot is wanting to do a lib32-u-boot which doesn't work. Same issue does not exist with the linux so I am just curious if anyone has any pointers.
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