| --- | Log | opened Mon Apr 18 00:00:42 2022 |
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| 10:02 | -!- | ccw is now known as Cheyenne |
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| 10:26 | <neilthereildeil> | hey guys |
| 10:26 | <neilthereildeil> | im trying to build xen 4.16 |
| 10:26 | <neilthereildeil> | im getting errors in building the efi code |
| 10:26 | <neilthereildeil> | are there any special requirements for bulding efi code? |
| 10:28 | <dwfreed> | you need a linker capable of producing x86_64-pep, but that's pretty much default these days |
| 10:28 | <dwfreed> | it would be helpful if you actually pastebinned the build log |
| 10:29 | <neilthereildeil> | the wiki said check ld -V for "i386pe" |
| 10:29 | <neilthereildeil> | and i canconfirm its there |
| 10:29 | -!- | ChmEarl [~prymar56@098-147-150-167.res.spectrum.com] has joined #xen |
| 10:29 | -!- | ChmEarl is "Mark Pryor" on #xen ##xen-packaging #mock #packaging #virt |
| 10:29 | <neilthereildeil> | which is the buld log file? |
| 10:30 | <neilthereildeil> | im getting this error : ebmalloc.c:35:9: error: implicit declaration of function ‘blexit’ [-Werror=implicit-function-declaration] |
| 10:30 | <neilthereildeil> | but im not confinced that i should go in and modify code to make it build. thats alsmost never the answer, since it built on *someones* build environment |
| 10:31 | <neilthereildeil> | convinced* |
| 10:31 | <neilthereildeil> | dwfreed: does 4.16 release build in your dev environment? |
| 10:32 | <dwfreed> | I do not build xen, so I can't say |
| 10:34 | <neilthereildeil> | ohh u just download it from your distros repos? |
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| 11:14 | <ChmEarl> | neilthereildeil, thats a hypervisor build error? |
| 11:15 | <ChmEarl> | sed -i -e '/^CFLAGS/ s/-Werror/-fcf-protection=none -Wno-error/' xen/Rules.mk |
| 11:15 | <ChmEarl> | see this line in the xen/Rules.mk ^ |
| 11:17 | <ChmEarl> | used to build hypervisor in xen-4.16.1 for deb11/Bullseye |
| 11:18 | <neilthereildeil> | ChmEarl: no thats an EFI build error |
| 11:19 | <ChmEarl> | the xen/Rules.mk is in effect for the EFI build |
| 11:19 | <neilthereildeil> | https://pastebin.com/sPtLygxP |
| 11:20 | <neilthereildeil> | ChmEarl: i dont see "protection" in RUles.mk |
| 11:24 | <ChmEarl> | neilthereildeil, see the line, begins with CFLAGS, contains Werror |
| 11:28 | <neilthereildeil> | ChmEarl: I dont see any Werror here: https://github.com/xen-project/xen/blob/RELEASE-4.16.0/xen/Rules.mk |
| 11:42 | <ChmEarl> | neilthereildeil, sorry, its the xen/Makefile |
| 11:43 | <ChmEarl> | sed -i -e '/^CFLAGS/ s/-Werror/-fcf-protection=none -Wno-error/' xen/Makefile |
| 11:43 | <neilthereildeil> | ChmEarl: what about this line? is it supopsed to be removed? |
| 11:44 | <ChmEarl> | `all warnings treated as errors` is softened |
| 11:45 | <neilthereildeil> | ChmEarl: but this error that i pastebined was never a warning |
| 11:45 | <ChmEarl> | neilthereildeil, my xen-4.16.1 builds, yours does not |
| 11:45 | <ChmEarl> | it builds in Bullseye, Jammy, and AL8 |
| 11:47 | <ChmEarl> | neilthereildeil, you never used an inline sed edit before? that sed edit is in the debian rules.real |
| 11:48 | <neilthereildeil> | ChmEarl: ive used sed like twice |
| 11:49 | <neilthereildeil> | so you want me to ru nthat command? |
| 11:49 | <neilthereildeil> | run that* |
| 11:49 | <neilthereildeil> | or you want me to find a specific line in that file? |
| 11:50 | <neilthereildeil> | from that send command u pasted, i understand you want me to replace line 249 with "CFLAGS += -fcf-protection=none -Wno-error -Wredundant-decls -Wno-pointer-arith" |
| 11:50 | <neilthereildeil> | am i right? |
| 11:50 | <ChmEarl> | yes |
| 11:51 | <ChmEarl> | thats what I did to get it to build |
| 11:51 | <neilthereildeil> | how did this build on anyone else's machine? |
| 11:52 | <neilthereildeil> | without this modification? |
| 11:52 | <ChmEarl> | neilthereildeil, what is your OS/gcc versions? |
| 11:53 | <neilthereildeil> | debian 11.3, gcc 10.2.1 |
| 11:53 | <ChmEarl> | neilthereildeil, +1 |
| 11:54 | <ChmEarl> | xen-4.16.1 works really well on Bullseye, enjoy |
| 11:55 | <neilthereildeil> | something very interesting i found is the ebmalloc.o.d has an extra entry for efh.h |
| 11:55 | <neilthereildeil> | i think it might be a bug in the build system |
| 11:56 | <neilthereildeil> | the compiler error is saying it cant find the declaration of blexit |
| 11:56 | <neilthereildeil> | and i see blexit declared in efi.h |
| 11:57 | <neilthereildeil> | perhaps not coincidentally, i see a possible syntax error with the way ebmalloc.o.d refers to efi.h |
| 11:58 | <neilthereildeil> | wow, that "-fcf-protection=none -Wno-error" led to more errors... |
| 11:59 | <neilthereildeil> | ChmEarl: can you try building f26544492298cb82d66f9bf36e29d2f75b3133f2 without ANY modifications? you should get the same error as me, in which case we found a bug |
| 12:01 | <ChmEarl> | https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=automation/build/debian/unstable.dockerfile;h=bd61cd12c25692d652a0d47386bc4e667afb9819;hb=refs/heads/staging-4.16 |
| 12:01 | <ChmEarl> | ^ these are the depends for debian |
| 12:02 | <ChmEarl> | its Dockerfile, but maybe there is a Build-dep you are missing |
| 12:13 | <neilthereildeil> | ChmEarl: is this the file you look at to figure out how to build xen, rather than the wiki? |
| 12:14 | <neilthereildeil> | for example when setting up a new dev environment? |
| 12:39 | <neilthereildeil> | ChmEarl: i see something weird in /home/neil/xen/xen/arch/x86/efi/.ebmalloc.o.d: /home/neil/xen/xen/include/xen/const.h efi.h \ |
| 12:40 | <neilthereildeil> | theres an extra efi.h at the end of the line |
| 12:40 | <neilthereildeil> | and efi.h is the one that declares blexit |
| 12:40 | <neilthereildeil> | i dont think this is syntactically correct |
| 12:40 | <neilthereildeil> | it might not be finding the efi.h declaration |
| 12:40 | <neilthereildeil> | for blexit |
| 13:13 | <ccw> | jgross: I know that you did a patch for the problem I was having with gdbsx. running into another problem. The trap for a break point is never being reflected back to gdbsx, but to the guest system |
| 14:10 | <ChmEarl> | neilthereildeil, https://paste.debian.net/plain/1238297 |
| 14:12 | <neilthereildeil> | ChmEarl: are you showing me output from building 4.16 just now? |
| 14:12 | <neilthereildeil> | 4.16.1 |
| 14:14 | <ChmEarl> | neilthereildeil, yes, built latest |
| 14:16 | <neilthereildeil> | and it was completely unmodified? which git commit hash? ill try the same |
| 14:27 | <neilthereildeil> | ChmEarl: ill try to reproduce building the same git commit on my side |
| 14:27 | <ChmEarl> | neilthereildeil, oh its modified, and it uses the Debian build tools |
| 14:27 | <neilthereildeil> | ChmEarl: can you try building f26544492298cb82d66f9bf36e29d2f75b3133f2 without ANY modifications? you should get the same error as me, in which case we found a bug |
| 14:28 | <ChmEarl> | thats a git commit? what date? |
| 14:29 | <neilthereildeil> | * commit f26544492298cb82d66f9bf36e29d2f75b3133f2 (HEAD, tag: xen-RELEASE-4.16.1, tag: RELEASE-4.16.1, origin/staging-4.16, origin/stable-4.16) |
| 14:29 | <neilthereildeil> | * commit f26544492298cb82d66f9bf36e29d2f75b3133f2 (HEAD, tag: xen-RELEASE-4.16.1, tag: RELEASE-4.16.1, origin/staging-4.16, origin/stable-4.16) |
| 14:29 | <neilthereildeil> | Date: Tue Apr 12 14:21:23 2022 +0200 |
| 14:29 | <ChmEarl> | link to my Debian Delta: http://199.249.188.45/xen/debian/bullseye-nmu/4gx/source/xen_4.16.1-1+deb11u1.1.debian.tar.xz |
| 14:30 | <ChmEarl> | I built with that commit ^ |
| 14:30 | <neilthereildeil> | can u try mine plz? |
| 14:36 | <ChmEarl> | we are using the same commit |
| 14:36 | <neilthereildeil> | does it build unmodified for u? |
| 14:39 | <ChmEarl> | neilthereildeil, next for me, build xen-4.16.1 in Ubuntu Focal |
| 14:39 | <ChmEarl> | not try to break my working build |
| 14:39 | <neilthereildeil> | maybe u can try to build that unmodified commit i gave u in a differnt folder? |
| 14:42 | <ChmEarl> | neilthereildeil, most likely you are missing a build-depends |
| 14:43 | <neilthereildeil> | but wouldnt i get an error somewhere? |
| 14:44 | <neilthereildeil> | also, do u know how xen/arch/x86/efi/.ebmalloc.o.d is generated? |
| 14:44 | <neilthereildeil> | thats where im seeing a suspicious reference to efi.h |
| 15:36 | <ccw> | I found the problem with gdbsx and breakpoints. in addition to needing CONFIG_GDBSX, CONFIG_CRASH_DEBUG also needs to be set in order to get a fully functional guest debug env |
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| --- | Log | closed Tue Apr 19 00:00:43 2022 |