Description of problem: Build: https://koji.fedoraproject.org/koji/taskinfo?taskID=78157342 325:30.77 /builddir/build/BUILD/firefox-94.0/objdir/_virtualenvs/build/bin/python -m mozbuild.action.check_binary --target ../../../dist/bin/js 325:31.11 gmake[4]: Leaving directory '/builddir/build/BUILD/firefox-94.0/objdir/js/src/shell' 334:04.06 /usr/bin/ld: /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.06 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.06 /usr/bin/ld: DWARF error: invalid abstract instance DIE ref 334:04.06 /usr/bin/ld: DWARF error: invalid abstract instance DIE ref 334:04.07 /usr/bin/ld: DWARF error: invalid abstract instance DIE ref 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: invalid abstract instance DIE ref 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.08 /builddir/build/BUILD/firefox-94.0/objdir/aarch64-unknown-linux-gnu/release/libgkrust.a(gkrust-c3270c86cd04426b.gkrust_shared-5eee622b89b241db.hdlaqs91nx87yx7.rcgu.o.rcgu.o): in function `qcms_transform_data_rgb_out_lut_neon': 334:04.08 hdlaqs91nx87yx7:(.text.qcms_transform_data_rgb_out_lut_neon+0x124): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:04.09 /usr/bin/ld: /builddir/build/BUILD/firefox-94.0/objdir/aarch64-unknown-linux-gnu/release/libgkrust.a(gkrust-c3270c86cd04426b.gkrust_shared-5eee622b89b241db.hdlaqs91nx87yx7.rcgu.o.rcgu.o): in function `qcms_transform_data_rgba_out_lut_neon': 334:04.09 hdlaqs91nx87yx7:(.text.qcms_transform_data_rgba_out_lut_neon+0x11c): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:04.09 /usr/bin/ld: hdlaqs91nx87yx7:(.text.qcms_transform_data_rgba_out_lut_neon+0x1c4): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:04.10 /usr/bin/ld: /builddir/build/BUILD/firefox-94.0/objdir/aarch64-unknown-linux-gnu/release/libgkrust.a(gkrust-c3270c86cd04426b.gkrust_shared-5eee622b89b241db.hdlaqs91nx87yx7.rcgu.o.rcgu.o): in function `qcms_transform_data_bgra_out_lut_neon': 334:04.10 hdlaqs91nx87yx7:(.text.qcms_transform_data_bgra_out_lut_neon+0x120): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:04.10 /usr/bin/ld: hdlaqs91nx87yx7:(.text.qcms_transform_data_bgra_out_lut_neon+0x1d0): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:13.81 collect2: error: ld returned 1 exit status
I tried to disable debuginfo for it.
Would it be possible to post the exact ld invocation that's failing?
Seems it fails in the final phase where libxul.so is being produced. I guess it needs LLVM/Rust people. For the record, I don't see any issues building FF trunk on slightly outdated F-34 in our CI. ... 325:06.40 gmake[4]: Entering directory '/builddir/build/BUILD/firefox-94.0/objdir/toolkit/library/build' 325:06.40 toolkit/library/build/libxul.so 325:06.40 rm -f libxul.so 325:06.41 /usr/bin/g++ -std=gnu++17 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-strong -Wall -Wempty-body -Wignored-qualifiers -Wpointer-arith -Wsign-compare -Wtype-limits -Wunreachable-code -Wno-invalid-offsetof -Wc++2a-compat -Wduplicated-cond -Wimplicit-fallthrough -Wno-error=maybe-uninitialized -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=coverage-mismatch -Wno-error=free-nonheap-object -Wno-multistatement-macros -Wno-error=class-memaccess -Wno-error=deprecated-copy -Wno-error=unused-but-set-variable -Wformat -Wformat-overflow=2 -Wno-psabi -fno-sized-deallocation -fno-aligned-new -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -mbranch-protection=standard -fasynchronous-unwind-tables -fstack-clash-protection -fpermissive -fPIC -Wl,-z,relro -Wl,-z,now -DNSS_PKCS11_3_0_STRICT -fno-exceptions -fno-strict-aliasing -fPIC -fno-rtti -ffunction-sections -fdata-sections -fno-exceptions -fno-math-errno -pthread -pipe -g -g -O2 -fomit-frame-pointer -funwind-tables -shared -Wl,-z,defs -Wl,--gc-sections -Wl,-h,libxul.so -o libxul.so /builddir/build/BUILD/firefox-94.0/objdir/toolkit/library/build/libxul_so.list -lpthread -Wl,--no-keep-memory -Wl,--reduce-memory-overheads -Wl,-z,noexecstack -Wl,-z,text -Wl,-z,relro -Wl,-z,nocopyreloc -Wl,-Bsymbolic-functions -Wl,--build-id=sha1 -fstack-protector-strong -Wl,-rpath-link,/builddir/build/BUILD/firefox-94.0/objdir/dist/bin -Wl,-rpath-link,/usr/lib ../../../js/src/build/libjs_static.a /builddir/build/BUILD/firefox-94.0/objdir/aarch64-unknown-linux-gnu/release/libgkrust.a ../../../security/sandbox/linux/libmozsandbox.so ../../../config/external/lgpllibs/liblgpllibs.so ../../../config/external/sqlite/libmozsqlite3.so ../../../widget/gtk/mozgtk/libmozgtk.so ../../../widget/gtk/mozwayland/libmozwayland.so -Wl,--version-script,symverscript -ldl -lrt -lm -lX11 -lX11-xcb -lxcb -lXcomposite -lXcursor -lXdamage -lXext -lXfixes -lXi -lXrender -lpthread -ldl -lc -lffi -lplds4 -lplc4 -lnspr4 -lz -lssl3 -lsmime3 -lnss3 -lnssutil3 -lfreetype -lfontconfig -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -ldbus-glib-1 -ldbus-1 -lxcb-shm -lXrandr 325:30.77 /builddir/build/BUILD/firefox-94.0/objdir/_virtualenvs/build/bin/python -m mozbuild.action.check_binary --target ../../../dist/bin/js 325:31.11 gmake[4]: Leaving directory '/builddir/build/BUILD/firefox-94.0/objdir/js/src/shell' 334:04.06 /usr/bin/ld: /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.06 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.06 /usr/bin/ld: DWARF error: invalid abstract instance DIE ref 334:04.06 /usr/bin/ld: DWARF error: invalid abstract instance DIE ref 334:04.07 /usr/bin/ld: DWARF error: invalid abstract instance DIE ref 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: invalid abstract instance DIE ref 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.07 /usr/bin/ld: DWARF error: mangled line number section (bad file number) 334:04.08 /builddir/build/BUILD/firefox-94.0/objdir/aarch64-unknown-linux-gnu/release/libgkrust.a(gkrust-c3270c86cd04426b.gkrust_shared-5eee622b89b241db.hdlaqs91nx87yx7.rcgu.o.rcgu.o): in function `qcms_transform_data_rgb_out_lut_neon': 334:04.08 hdlaqs91nx87yx7:(.text.qcms_transform_data_rgb_out_lut_neon+0x124): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:04.09 /usr/bin/ld: /builddir/build/BUILD/firefox-94.0/objdir/aarch64-unknown-linux-gnu/release/libgkrust.a(gkrust-c3270c86cd04426b.gkrust_shared-5eee622b89b241db.hdlaqs91nx87yx7.rcgu.o.rcgu.o): in function `qcms_transform_data_rgba_out_lut_neon': 334:04.09 hdlaqs91nx87yx7:(.text.qcms_transform_data_rgba_out_lut_neon+0x11c): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:04.09 /usr/bin/ld: hdlaqs91nx87yx7:(.text.qcms_transform_data_rgba_out_lut_neon+0x1c4): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:04.10 /usr/bin/ld: /builddir/build/BUILD/firefox-94.0/objdir/aarch64-unknown-linux-gnu/release/libgkrust.a(gkrust-c3270c86cd04426b.gkrust_shared-5eee622b89b241db.hdlaqs91nx87yx7.rcgu.o.rcgu.o): in function `qcms_transform_data_bgra_out_lut_neon': 334:04.10 hdlaqs91nx87yx7:(.text.qcms_transform_data_bgra_out_lut_neon+0x120): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:04.10 /usr/bin/ld: hdlaqs91nx87yx7:(.text.qcms_transform_data_bgra_out_lut_neon+0x1d0): undefined reference to `llvm.fptosi.sat.v4i32.v4f32' 334:13.81 collect2: error: ld returned 1 exit status 334:13.81 gmake[4]: *** [/builddir/build/BUILD/firefox-94.0/config/rules.mk:545: libxul.so] Error 1 334:13.81 gmake[4]: Leaving directory '/builddir/build/BUILD/firefox-94.0/objdir/toolkit/library/build' 334:13.81 gmake[3]: *** [/builddir/build/BUILD/firefox-94.0/config/recurse.mk:72: toolkit/library/build/target] Error 2 334:13.81 gmake[3]: Leaving directory '/builddir/build/BUILD/firefox-94.0/objdir' 334:13.82 gmake[2]: *** [/builddir/build/BUILD/firefox-94.0/config/recurse.mk:34: compile] Error 2 334:13.82 gmake[2]: Leaving directory '/builddir/build/BUILD/firefox-94.0/objdir' 334:13.82 gmake[1]: *** [/builddir/build/BUILD/firefox-94.0/config/rules.mk:358: default] Error 2 334:13.82 gmake[1]: Leaving directory '/builddir/build/BUILD/firefox-94.0/objdir' 334:13.82 gmake: *** [client.mk:54: build] Error 2
> undefined reference to `llvm.fptosi.sat.v4i32.v4f32' Fedora 33 has LLVM 11, but llvm.fptosi.sat.* was only added in LLVM 12. I don't think this is coming from rustc though, because the code that emits that is guarded for the version, and never does vectored versions either. https://github.com/rust-lang/rust/blob/09c42c45858d5f3aedfa670698275303a3d19afa/compiler/rustc_codegen_llvm/src/builder.rs#L704-L714
I take it back -- it was hidden from me in a submodule. That is emitted by the aarch64 simd instrinsic `vcvtq_s32_f32` here: https://github.com/rust-lang/stdarch/blob/89b0e355bc3cff5cddec2290c84f36eb3a026aad/crates/core_arch/src/arm_shared/neon/generated.rs#L2419-L2433 However, all of `core::arch::aarch64` is still marked unstable. This is cheated by gfx/qcms/build.rs's RUSTC_BOOTSTRAP=1 and the feature enablement in lib.rs, but this is explicitly not supported. It looks like the "neon" feature is optional for that crate, so perhaps there's a global firefox config you can change to avoid that.
I can confirm the issue, we ran into it too on Mageia 8 when updating Rust and Firefox (relevant bug report: https://bugs.mageia.org/show_bug.cgi?id=29616#c8). I'm documenting our findings here in case it's useful to others (I guess a fix is not so useful for F33 which is near EOL). After identifying with Josh that it's indeed a LLVM version incompatibility, I tried to rebuild Mageia 8's aarch64 rust with the bundled LLVM 13.0. That ultimately failed because our build nodes ran out of memory, competing with a kernel build. Didn't seem worth the trouble to push further, so I went with the approach suggested by Josh in comment 5 to disable the `neon` feature: http://svnweb.mageia.org/packages/updates/8/firefox/current/SOURCES/qcms-disable-neon-aarch64.patch?view=markup&pathrev=1753852 This seemed to work fine. Technically this is either a Firefox or a Rust bug that it tries to use LLVM 12 intrinsics despite building against LLVM 11. But I doubt either project will really care so this issue can likely be closed as WONTFIX or just left to reach F33's EOL.
This message is a reminder that Fedora 33 is nearing its end of life. Fedora will stop maintaining and issuing updates for Fedora 33 on 2021-11-30. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '33'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 33 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete.
(In reply to Rémi Verschelde from comment #6) > Technically this is either a Firefox or a Rust bug that it tries to use LLVM > 12 intrinsics despite building against LLVM 11. But I doubt either project > will really care so this issue can likely be closed as WONTFIX or just left > to reach F33's EOL. It's a WONTFIX from my Rust perspective, because these are unstable features. It's nice that it works for LLVM 12+, but it's still not supported. Firefox could disable neon if they want to get a build out before EOL. Thanks for reporting back on that!
Fedora 33 changed to end-of-life (EOL) status on 2021-11-30. Fedora 33 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.