[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
This bug was fixed in the package qemu - 1:5.0-5ubuntu9.3 --- qemu (1:5.0-5ubuntu9.3) groovy; urgency=medium * d/p/ubuntu/lp-1907656-s390x-s390-virtio-ccw-Reset-PCI-devices-during-subsy: avoid PCI devices to become unavailable on reset (LP: #1907656) * d/rules: fix qemu-user-static to really be static (LP: #1908331) -- Christian Ehrhardt Tue, 05 Jan 2021 15:46:16 +0100 ** Changed in: qemu (Ubuntu Groovy) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
This bug was fixed in the package qemu - 1:5.2+dfsg-3ubuntu1 --- qemu (1:5.2+dfsg-3ubuntu1) hirsute; urgency=medium * Merge with Debian unstable, includes fixes for - qemu-user-static are partially dynamically linked (LP: #1908331) - qemu crashing when using spice without qemu-system-gui being installed (LP: #1908577) Remaining changes: - qemu-kvm to systemd unit - d/qemu-kvm-init: script for QEMU KVM preparation modules, ksm, hugepages and architecture specifics - d/qemu-system-common.qemu-kvm.service: systemd unit to call qemu-kvm-init - d/qemu-system-common.install: install helper script - d/qemu-system-common.qemu-kvm.default: defaults for /etc/default/qemu-kvm - d/rules: call dh_installinit and dh_installsystemd for qemu-kvm - Distribution specific machine type (LP: 1304107 1621042) - d/p/ubuntu/define-ubuntu-machine-types.patch: distro machine types - d/qemu-system-x86.NEWS Info on fixed machine type definitions for host-phys-bits=true (LP: 1776189) - add an info about -hpb machine type in debian/qemu-system-x86.NEWS - provide pseries-bionic-2.11-sxxm type as convenience with all meltdown/spectre workarounds enabled by default. (LP: 1761372). - ubuntu-q35 alias added to auto-select the most recent q35 ubuntu type - Enable nesting by default - d/p/ubuntu/enable-svm-by-default.patch: Enable nested svm by default in qemu64 on amd [ No more strictly needed, but required for backward compatibility ] - improved dependencies - Make qemu-system-common depend on qemu-block-extra - Make qemu-utils depend on qemu-block-extra - let qemu-utils recommend sharutils - tolerate ipxe size change on migrations to >=18.04 (LP: 1713490) - d/p/ubuntu/pre-bionic-256k-ipxe-efi-roms.patch: old machine types reference 256k path - d/control-in: depend on ipxe-qemu-256k-compat-efi-roms to be able to handle incoming migrations from former releases. - d/control-in: Disable capstone disassembler library support (universe) - d/qemu-system-x86.README.Debian: add info about updated nesting changes - d/control*, d/rules: disable xen by default, but provide universe package qemu-system-x86-xen as alternative [includes compat links changes of 5.0-5ubuntu4] - allow qemu to load old modules post upgrade (LP 1847361) - Drop d/qemu-block-extra.*.in, d/qemu-system-gui.*.in - d/rules: Drop generating package version into maintainer scripts - d/qemu-system-gui.prerm: add no-op prerm to overcome upgrade issues on the bad old prerm (LP 1906245 1905377) - d/p/ubuntu/lp-1907789-build-no-pie-is-no-functional-liker-flag.patch: fix ld usage of -no-pie (LP 1907789) -- Christian Ehrhardt Tue, 05 Jan 2021 12:43:42 +0100 ** Changed in: qemu (Ubuntu) Status: Triaged => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
1:5.0-5ubuntu9.2 $ file $(dpkg -L qemu-user-static | grep bin\/qemu-.*-static) ... /usr/bin/qemu-xtensaeb-static: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=99dc333d7f8a78620600e5807de92b60dba54468, for GNU/Linux 3.2.0, stripped 1:5.0-5ubuntu9.3 $ file $(dpkg -L qemu-user-static | grep bin\/qemu-.*-static) ... /usr/bin/qemu-xtensaeb-static: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=9af415b1e42c28a1a6fd39daa663b661a0c3e175, for GNU/Linux 3.2.0, stripped $ file $(dpkg -L qemu-user-static | grep bin\/qemu-.*-static) | grep -v "statically linked" | wc -l 0 No dynamic links left - verified ** Tags removed: verification-needed verification-needed-groovy ** Tags added: verification-done verification-done-groovy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
Hello TJ, or anyone else affected, Accepted qemu into groovy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/qemu/1:5.0-5ubuntu9.3 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed- groovy to verification-done-groovy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-groovy. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: qemu (Ubuntu Groovy) Status: New => Fix Committed ** Tags added: verification-needed verification-needed-groovy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
Review and pre-tests ok, uploaded to 21.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
Uploaded and ready for the review by the SRU Team -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
SRU prepared (template in bug description) and tested against the PPA (https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/4389) and reviewed (https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/395786). I will upload that to -unapproved soon -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
** Description changed: - On 20.04 (qemu 4.2) the binaries built for qemu-user-static - - specifically in the case I've hit /usr/bin/qemu-aarch64-static - are - completely static executables. + [ Impact ] + + * An upstream change [1] had undesired impact of making qemu-user-static +no more fully static. In some cases e.g. cross arch debootstrapping +that breaks the use case. + + * The root cause is the use of ld with an unsupported pie related flag. +We have fixed this upstream and this backports that change. + + [Test Case] + + * $ file $(dpkg -L qemu-user-static | grep bin\/qemu-.*-static) + + Should show "statically linked", but not "dynamically linked" (bad + case) + + + [Where problems could occur] + + * I can't think of an immediate expected regression that comes to mind, +but the following at least limits the area to look for issues. +The change it limited to qemu-user-static. Therefore impacts would be +seen there but not in e.g. system emulation (other binaries, those +didn't change except for being rebuilt). +Also the new behavior matches what we had pre-groovy and therfore what +users expect. + + + [Other Info] + + * n/a + + + [1]: https://git.qemu.org/?p=qemu.git;a=commit;h=127814629b32d5e0de2873d742e08cb9bd412af7 + + + --- + + + On 20.04 (qemu 4.2) the binaries built for qemu-user-static - specifically in the case I've hit /usr/bin/qemu-aarch64-static - are completely static executables. The same binaries from a qemu 5.x build are not. Although they don't link to other shared libraries they are dynamically linked to glibc and therefore require the same version of the glibc shared libraries at runtime. This breaks many uses in foreign architecture chroots; in my case an aarch64 being built with debootstrap: On focal: $ file /usr/bin/qemu-aarch64-static /usr/bin/qemu-aarch64-static: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=abad039a2cfc5bc87215554230a572b085fbc37a, for GNU/Linux 3.2.0, with debug_info, not stripped $ dpkg -S /usr/bin/qemu-aarch64-static qemu-user-static: /usr/bin/qemu-aarch64-static $ apt list qemu-user-static qemu-user-static/focal-updates,focal-security,now 1:4.2-3ubuntu6.10 amd64 [installed] But recent builds of 5.2 are not; for example from hirsute (qemu-user- static_5.2+dfsg-2ubuntu1_amd64.deb) $ file /tmp/qemu-aarch64-static /tmp/qemu-aarch64-static: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=91fda2fa08f46d1bb6d19b6f72a4819a7c20fd7e, for GNU/Linux 3.2.0, stripped I hit this whilst trying to track down another bug and building upstream git HEAD on 20.04 with: $ ../../qemu/configure --disable-system --enable-linux-user --static --target-list=aarch64-linux-user $ make $ file qemu-aarch64 qemu-aarch64: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=546ba11f0de940f7f3cbfaffae3c2bb54b683386, for GNU/Linux 3.2.0, with debug_info, not stripped It looks like changes to the qemu build system are responsible. I asked on OFTC #qemu and at that time no-one was particularly aware of the significance/difference. Looking at the configure output summary between the focal and hirsute/upstream builds I noticed that there is no longer a separate summary for LDFLAGS - it now only reports QEMU_LDFLAGS. That seems significant since focal passed "-static" with LDFLAGS not QEMU_LDFLAGS: LDFLAGS -Wl,--warn-common -m64 -static -g -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed - QEMU_LDFLAGS + QEMU_LDFLAGS whereas hirsute shows: QEMU_LDFLAGS: -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -static-pie -m64 -g -O2 -fdebug-prefix-map=/<>/qemu-5.2+dfsg=. -fstack- protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as- needed -fstack-protector-strong (notice it is -static-pie not -static now) I've seen mention in qemu commit messages of the meson build system changes causing issues around passing of linker flags but it needs someone familiar with the project and build system to figure this out. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
** Merge proposal linked: https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/395786 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
** Changed in: qemu (Ubuntu) Importance: Undecided => High ** Changed in: qemu (Ubuntu Groovy) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
My change was accepted upstream and in 5.2-3 - I'll merge that in the coming days. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
Now that root-cause and solution is rather clear I have submitted that to Debian (which is affected the same way). But I will personally enter the EOY-downtime before I can fix it in an Ubuntu upload - OTOH this isn't super urgent I guess - and if my prio-assumption is wrong the fix is available to apply right here. => https://salsa.debian.org/qemu-team/qemu/-/merge_requests/16 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
Bisect agrees $ git bisect log git bisect start # old: [b0ca999a43a22b38158a33d3f5881648bb4f] Update version for v4.2.0 release git bisect old b0ca999a43a22b38158a33d3f5881648bb4f # new: [fdd76fecdde1ad444ff4deb7f1c4f7e4a1ef97d6] Update version for v5.0.0 release git bisect new fdd76fecdde1ad444ff4deb7f1c4f7e4a1ef97d6 # old: [381063d778a5aa9dcf84a2284a192d84746b2e0f] linux-user: microblaze: Update syscall numbers to kernel 5.5 level git bisect old 381063d778a5aa9dcf84a2284a192d84746b2e0f # old: [6d49d3a859b0f19226dbb0df5e7f50267b42f45c] luks: extract qcrypto_block_calculate_payload_offset() git bisect old 6d49d3a859b0f19226dbb0df5e7f50267b42f45c # old: [c8c35e5f51c4d54bced7aa05fbd8e2371e493182] Add rx-softmmu git bisect old c8c35e5f51c4d54bced7aa05fbd8e2371e493182 # new: [8ffb7265af64ec81748335ec8f20e7ab542c3850] net: tulip: check frame size and r/w data length git bisect new 8ffb7265af64ec81748335ec8f20e7ab542c3850 # old: [bb1ce44b15f159b67fafc5f4b285bbf20a1961e9] qga: Installer: Wait for installation to finish git bisect old bb1ce44b15f159b67fafc5f4b285bbf20a1961e9 # old: [6d8e7738b0375d9bf247b73ed4739f741df03f21] tests/docker: Use Python3 PyYAML in the Fedora image git bisect old 6d8e7738b0375d9bf247b73ed4739f741df03f21 # new: [84878f4c00a7beca1d1460e2f77a6c833b8d0393] target/mips: Fix loongson multimedia condition instructions git bisect new 84878f4c00a7beca1d1460e2f77a6c833b8d0393 # old: [127fe8643340c330cbc0a4194ea56e3d522dbb71] Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-270320-2' into staging git bisect old 127fe8643340c330cbc0a4194ea56e3d522dbb71 # old: [ee5195ee0fc87858088313f2c6f327ac41f5912f] configure: Drop adjustment of textseg git bisect old ee5195ee0fc87858088313f2c6f327ac41f5912f # old: [b26341241bbfe9cc126479a0dbed5d40d547f242] configure: Always detect -no-pie toolchain support git bisect old b26341241bbfe9cc126479a0dbed5d40d547f242 # old: [2c674109c2da3f2e17b69f39e0b93b3f3d3dfa59] configure: Override the os default with --disable-pie git bisect old 2c674109c2da3f2e17b69f39e0b93b3f3d3dfa59 # new: [127814629b32d5e0de2873d742e08cb9bd412af7] configure: Support -static-pie if requested git bisect new 127814629b32d5e0de2873d742e08cb9bd412af7 # first new commit: [127814629b32d5e0de2873d742e08cb9bd412af7] configure: Support -static-pie if requested 127814629b32d5e0de2873d742e08cb9bd412af7 is the first new commit commit 127814629b32d5e0de2873d742e08cb9bd412af7 Author: Richard Henderson Date: Tue Dec 17 15:30:14 2019 -1000 configure: Support -static-pie if requested Recent toolchains support static and pie at the same time. As with normal dynamic builds, allow --static to default to PIE if supported by the toolchain. Allow --enable/--disable-pie to override the default. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- v2: Fix --disable-pie --static v3: Update for QEMU_LDFLAGS. configure | 19 --- 1 file changed, 12 insertions(+), 7 deletions(-) bisect run success -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
Building v5.0.0 with --disable-pie: flags now are: QEMU_LDFLAGS -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -static -m64 -fstack-protector-strong And the file is as we'd like it to be: ./aarch64-linux-user/qemu-aarch64: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=af9a7155d48effae761623c97d59b2c0a0d77c2d, for GNU/Linux 3.2.0, with debug_info, not stripped -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
Just looking at git history maybe https://git.qemu.org/?p=qemu.git;a=commit;h=127814629b32d5e0de2873d742e08cb9bd412af7 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
Confirmed to recreate from git as well: v5.0.0 ./aarch64-linux-user/qemu-aarch64: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=1521984faacf9472c1df8fe37c2a0fb5e2f55aba, for GNU/Linux 3.2.0, with debug_info, not stripped v4.2.0 ./aarch64-linux-user/qemu-aarch64: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=f646a883f4f587f17be145a4033d201c2579effa, for GNU/Linux 3.2.0, with debug_info, not stripped FYI 4.2 also shows the warnings like (.text+0x277): warning: Using 'getpwuid' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking So that might have been a red herring -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
Thanks for the great report TJ. Indeed configure --static converts to 4.2 LDFLAGS -Wl,--warn-common -m64 -static -g -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed QEMU_LDFLAGS··· 5.0 QEMU_LDFLAGS -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -static-pie -m64 -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed -fstack-protector-strong So as reported no more LDFLAGS/QEMU_LDFLAGS split (there was some cleanup). And also as reported I agree to the maybe even more important it seems it switched from "-static" to "-static-pie" --- There is even what seems to be a related build warning. I picked one sample from the static build and found these. 4.2: c++ ... -m64 -static ... -o qemu-arm exec.o ... -lnettle -lrt 5.0: c++ ... -static-pie -m64 ... -o qemu-arm exec.o ... -lnettle -lrt (.text+0x277): warning: Using 'getpwuid' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking IMHO - That sounds very related @TJ - don't start a new build for it , but if you can easily check in the logs do you also see these warnings? P.S. I've found the qemu 5.2 build in Hirsute to be affected as well ** Changed in: qemu (Ubuntu) Status: New => Triaged ** Tags added: server-next ** Also affects: qemu (Ubuntu Groovy) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
If -static-pie is indeed impoartant here - it is rather new and had problems before. An excerpt from d/rules: 114 ifneq ($(filter $(DEB_HOST_ARCH),i386 x32),) 115 # XXX as of 2020-04-29, i386 buildd fails to link -static-pie executable: 116 # /usr/bin/ld: /usr/lib/i386-linux-gnu/libc.a(memset_chk-nonshared.o): 117 #»··unsupported non-PIC call to IFUNC `memset' 118 # so disable PIE for qemu-user-static build on i386 for now. 119 # On x32 -static-pie fails in different way. 120 # On amd64 -static-pie appears to work fine. 121 # On other architectures qemu correctly detect that -static-pie is not available 122 XXXstaticpie = --disable-pie 123 else 124 XXXstaticpie = 125 endif -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
I've posted a question to the qemu-devel mailing list with subject "Are user static builds really dynamically linked ?" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
To be sure I built upstream v4.2.1 and it reports the expected and required linkage. Build needs some additional tweaking to avoid libssh deprecated functions causing -Werror to trigger: $ sudo apt install liblzma-dev $ ../../qemu/configure --target-list=aarch64-linux-user --static --disable-system --enable-linux-user --extra-cflags='-Wno-deprecated- declarations' $ make -j8 V=1 $ file ./aarch64-linux-user/qemu-aarch64 ./aarch64-linux-user/qemu-aarch64: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=70f5e10ac0eb9b63d7758850e2f18d0a047d4b79, for GNU/Linux 3.2.0, with debug_info, not stripped -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1908331] Re: Regression: qemu-user-static binaries are dynamically linked
** Description changed: On 20.04 (qemu 4.2) the binaries built for qemu-user-static - specifically in the case I've hit /usr/bin/qemu-aarch64-static - are completely static executables. The same binaries from a qemu 5.x build are not. Although they don't link to other shared libraries they are dynamically linked to glibc and therefore require the same version of the glibc shared libraries at runtime. This breaks many uses in foreign architecture chroots; in my case an aarch64 being built with debootstrap: On focal: $ file /usr/bin/qemu-aarch64-static /usr/bin/qemu-aarch64-static: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=abad039a2cfc5bc87215554230a572b085fbc37a, for GNU/Linux 3.2.0, with debug_info, not stripped $ dpkg -S /usr/bin/qemu-aarch64-static qemu-user-static: /usr/bin/qemu-aarch64-static $ apt list qemu-user-static qemu-user-static/focal-updates,focal-security,now 1:4.2-3ubuntu6.10 amd64 [installed] But recent builds of 5.2 are not; for example from hirsute (qemu-user- static_5.2+dfsg-2ubuntu1_amd64.deb) $ file /tmp/qemu-aarch64-static /tmp/qemu-aarch64-static: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=91fda2fa08f46d1bb6d19b6f72a4819a7c20fd7e, for GNU/Linux 3.2.0, stripped I hit this whilst trying to track down another bug and building upstream git HEAD on 20.04 with: $ ../../qemu/configure --disable-system --enable-linux-user --static --target-list=aarch64-linux-user $ make $ file qemu-aarch64 qemu-aarch64: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=546ba11f0de940f7f3cbfaffae3c2bb54b683386, for GNU/Linux 3.2.0, with debug_info, not stripped It looks like changes to the qemu build system are responsible. I asked on OFTC #qemu and at that time no-one was particularly aware of the significance/difference. Looking at the configure output summary between the focal and hirsute/upstream builds I noticed that there is no longer a separate summary for LDFLAGS - it now only reports QEMU_LDFLAGS. That seems significant since focal passed "-static" with LDFLAGS not QEMU_LDFLAGS: - LDFLAGS -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -pie -m64 -g -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed - QEMU_LDFLAGS + LDFLAGS -Wl,--warn-common -m64 -static -g -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed + QEMU_LDFLAGS whereas hirsute shows: - QEMU_LDFLAGS: -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -m64 -g -O2 - -fdebug-prefix-map=/<>/qemu-5.2+dfsg=. -fstack-protector- - strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 - -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed -fstack-protector- - strong + QEMU_LDFLAGS: -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -static-pie -m64 + -g -O2 -fdebug-prefix-map=/<>/qemu-5.2+dfsg=. -fstack- + protector-strong -Wformat -Werror=format-security -Wdate-time + -D_FORTIFY_SOURCE=2 -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as- + needed -fstack-protector-strong + + (notice it is -static-pie not -static now) I've seen mention in qemu commit messages of the meson build system changes causing issues around passing of linker flags but it needs someone familiar with the project and build system to figure this out. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908331 Title: Regression: qemu-user-static binaries are dynamically linked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1908331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
