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| mikernl91 | Hi everyone...I'm trying to add my own fstab to rootfs(of target) the problem is that 2 recipes are trying to install it and the error "file /etc/fstab conflicts between attempted installs" is shown.The implicated recipes are base-files_%.bb and dev-rootfs_%.bb. The latter is my recipe and the one i want to be the responsible to install | 01:04 |
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| mikernl91 | fstab(without modifying anything else), i tried to usethe update-alternatives.bbclass without luck.The following is what i tried in my dev-rootfs_%.bb recipe ALTERNATIVE_base-files= "fstab"ALTERNATIVE_LINK_NAME[fstab] = "/etc/fstab"ALTERNATIVE_TARGET = "/etc/fstab"do_install () { install -d ${D}${sysconfdir} install -m 0755 ${MY_ETC}/fstab | 01:04 |
| mikernl91 | ${D}${sysconfdir}/fstab}I hope you can give me any clue on this... thank you very much! | 01:04 |
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| kergoth | mikernl91: alternatives only works if all recipes providing the file use it. | 02:03 |
| kergoth | mikernl91: you'd need to also bbappend base-files to use it there too | 02:03 |
| kergoth | but you could just bbappend base-files to alter fstab directly rather than using your own recipe for it instead | 02:03 |
| mikernl91 | kergoth: Thanks for the reply! | 02:47 |
| mikernl91 | actually i did what you mentioned but, the reason i use another recipe is because i want to be able to to modify this fstab based on the image-recipe i'm building, i.e. adding the dev-rootfs in my IMAGE_INSTALL. Also i tried to use ROOTFS_POSTPROCESS_COMMAND but following this discussion https://narkive.com/XcannnRd:3.552.52 it looks like it is | 02:56 |
| mikernl91 | better to avoid POSTPROCESS | 02:56 |
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| jwwww | Hello. | 08:53 |
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| stuom1 | anybody have experience on situation where autotools based recipe seemingly succeeds without any problems but the actual files are not in the baked image? | 13:27 |
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| JPEW | Hmm.... glibc dlopen()'s libgcc_s in some cases, but it's not in RDEPENDS so it won't necessarily get pulled into the rootfs... | 19:45 |
| khem | thats one but there are more whack-a-moles | 19:53 |
| khem | e.g. if app use system() API to open random binaries | 19:53 |
| khem | we only detect shlibs that too only direct deps | 19:54 |
| kergoth | that's where explicit rdepends aditions come in, we can only do so much | 19:54 |
| * khem nods | 19:54 | |
| JPEW | Sure, I'm more interested in where the correct place to add the RDEPENDS is. My first instict would be to add it to the glibc package | 20:09 |
| JPEW | RDEPENDS_${PN} += "libgcc" | 20:09 |
| JPEW | This of course, rebuilds *everything* so I'm a little leery :) | 20:10 |
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| khem | that is not really correct representation, glibc does not need it | 20:22 |
| khem | but you might want to override the pthreads unwind behaviour | 20:22 |
| khem | in app | 20:22 |
| JPEW | The app is python | 20:23 |
| khem | then it should ask for it | 20:23 |
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| xyzzy42 | I'm getting an error on the linux-libc-headers package build, "Failed to spawn fakeroot worker to run ...: Broken Pipe" | 21:39 |
| xyzzy42 | Looking into that a bit, I find that if I try to manually run pseudo, out of tmp/sysroots-components/x86_64/pseudo-native/usr/bin/pseudo, it fails | 21:40 |
| xyzzy42 | The reason is it was apparently compiled against my native glibc, 2.30, while when it runs, it's using a glibc from sysroot-uninative, which is version 2.26 | 21:41 |
| xyzzy42 | should I expect psuedo to run when invoked directly? It doesn't require some kind of special invocation (LD_PRELOAD, fakeroot, etc) to use the correct libraries? | 21:43 |
| khem | xyzzy42: whats your build host distro | 21:59 |
| khem | uninative is preferred to be used and it seems thats in play in your build which is ok | 22:00 |
| xyzzy42 | khem, fedora 31 | 22:01 |
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| khem | xyzzy42: ok I think f31 is used on some of Autobuilders nodes too so this issue should have appeared ther | 22:12 |
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| xyzzy42 | Am I correct the poky has built a native version of glibc 2.5.90 to link native executables against? | 22:13 |
| khem | oh only uptill f30 are there https://autobuilder.yoctoproject.org/typhoon/#/workers | 22:13 |
| khem | but I am sure there are users here who use f31, I dont so I have not seen the issue myself | 22:14 |
| xyzzy42 | This is an old poky I'm using, so it's possible that the issue isn't present anymore | 22:15 |
| khem | xyzzy42: pseudo perhaps should be run in uninative env if you have used that to build it | 22:15 |
| xyzzy42 | I didn't see any bugs or commits that appear related to this | 22:15 |
| khem | hmmm which version of poky | 22:15 |
| xyzzy42 | It's a snapshot that was taken a bit after rocko-18.0.1 | 22:16 |
| khem | yes because there are tested distros and thats what would be recommended to build for a given release | 22:16 |
| xyzzy42 | how would I see if psuedo-native was built in an uninative env? | 22:17 |
| khem | :) so you should mention that first what does bitbake -e busybox | grep "^SANITY_TESTED_DISTROS=" say ? | 22:18 |
| xyzzy42 | empty | 22:19 |
| xyzzy42 | I'm sure this poky was not build on f31, since it predates f31 by almost 3 years | 22:19 |
| xyzzy42 | but it's not like the distro is fundamentally at odds with building. There's some specific problem here. | 22:22 |
| xyzzy42 | It seems to be related to the library choice being different at link time vs run time | 22:23 |
| xyzzy42 | It's entirely unclear to me where the heck the libc-2.25.90.so in sysroots-uninative came from. I see no other files from a native build of glibc. As well, trying to combine the host gcc with another glibc seems unlikely to work very well. | 22:26 |
| kergoth | host version is a large factor. getting an old release building on a new distro is non-trivial due to compiler changes (warnings changing to errors, etc) and glibc version incompatibilities, etc | 22:27 |
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| kergoth | if you look through oe-core ou'll find fixes that went in for newer glibc versions | 22:27 |
| kergoth | through git history, that is | 22:27 |
| xyzzy42 | kergoth, yes, I've had to fix a few of those to get this far. host gcc+glib has issues with old version of package X | 22:29 |
| xyzzy42 | here, it's not clear to me what poky is trying to do. I don't see any flaw in pseudo itself. It looks like poky is trying to link it against one glibc and run it with another, which is just broken by design. | 22:31 |
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| xyzzy42 | I see where the glibc-2.25.90 is coming from. The uninative system downloads a pre-compiled c library and tries to use that. | 22:43 |
| khem | xyzzy42: right, thats the way to nullify different libc APIs that different distros will otherwise offer | 22:44 |
| xyzzy42 | looks like it's an attempt to allow copying binaries for host tools across different distributions | 22:44 |
| khem | if you do not care for that then I would say disable the feature | 22:45 |
| khem | conf/distro/poky.conf:require conf/distro/include/yocto-uninative.inc | 22:45 |
| khem | conf/distro/poky.conf:INHERIT += "uninative" | 22:45 |
| khem | comment those out | 22:45 |
| xyzzy42 | Hmm, I don't see how that can work very well. What happens when a host library linked against the host's glibc is used in the same executable as the different uninative glibc? | 22:45 |
| khem | generally that wont happen because it modifies the ldso | 22:59 |
| khem | loading path | 22:59 |
| khem | ldso will be used from uninative and that the hook to load the libs | 22:59 |
| xyzzy42 | yes, I see the patchelf to change the interpreter to a local one. That's where it change the lib search order to uninative first | 23:00 |
| xyzzy42 | also while "ldd native-build-exe" reports the incorrect libs, since it doesn't appear to reflect the ELF's interpreter and instead uses the host's | 23:01 |
| xyzzy42 | but it seems like as soon as any build of a native executable uses a library which is not in uninative it will create the possibility of trying to pull in conflicting library versions | 23:02 |
| xyzzy42 | I've tried to stop using uninative, I'm only interested in building an image, not a cross-distro SDK, but it looks like it's still getting pulled in. | 23:04 |
| xyzzy42 | If there is a log line of "DEBUG: Inheriting /.../uninative.bbclass", that's means I've see got something inheriting it, right? | 23:05 |
| xyzzy42 | Is the goal of uninative to replace _every_ host library with a locally built/downloaded one? | 23:10 |
| khem | not all | 23:52 |
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