-
Bug
-
Resolution: Unresolved
-
Undefined
-
rhel-9.7
-
None
-
llvm-20.1.1-3.el9
-
No
-
Moderate
-
2
-
rhel-pt-llvm-rust
-
ssg_platform_tools
-
1
-
False
-
False
-
-
No
-
PT LLVMRustGo 2025 S5, PT LLVMRustGo 2025 S6
-
Pass
-
Automated
-
Unspecified Release Note Type - Unknown
-
Unspecified
-
Unspecified
-
Unspecified
-
-
ppc64le
-
None
qemu-kvm fails to build with latest llvm-20.1.0-1.el9 (gated as this ticket is being written, not yet in buildroot).
A brew scratch build showing the problem can be found in https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=67080997
The error can be found in build.log:
FAILED: libblock.a.p/block_qcow2-bitmap.c.o clang -m64 -mlittle-endian -Ilibblock.a.p -I. -I.. -Iqapi -Itrace -Iui -Iui/shader -Iblock -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/sysprof-4 -fcolor-diagnostics -Wall -Winvalid-pch -Werror -std=gnu11 -O2 -g -fstack-protector-strong -Wempty-body -Wendif-labels -Wexpansion-to-defined -Wformat-security -Wformat-y2k -Wignored-qualifiers -Winit-self -Wmissing-format-attribute -Wmissing-prototypes -Wnested-externs -Wold-style-definition -Wredundant-decls -Wstrict-prototypes -Wtype-limits -Wundef -Wvla -Wwrite-strings -Wno-gnu-variable-sized-type-not-at-end -Wno-initializer-overrides -Wno-missing-include-dirs -Wno-psabi -Wno-shift-negative-value -Wno-string-plus-int -Wno-tautological-type-limit-compare -Wno-typedef-redefinition -Wthread-safety -isystem /builddir/build/BUILD/qemu-9.1.0/linux-headers -isystem linux-headers -iquote . -iquote /builddir/build/BUILD/qemu-9.1.0 -iquote /builddir/build/BUILD/qemu-9.1.0/include -iquote /builddir/build/BUILD/qemu-9.1.0/host/include/ppc64 -iquote /builddir/build/BUILD/qemu-9.1.0/host/include/generic -iquote /builddir/build/BUILD/qemu-9.1.0/tcg/ppc -pthread -DSTAP_SDT_V2 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fno-common -fwrapv -ftrivial-auto-var-init=zero -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS --config /usr/lib/rpm/redhat/redhat-hardened-clang.cfg -fstack-protector-strong -m64 -mcpu=power9 -mtune=power9 -fasynchronous-unwind-tables -fstack-clash-protection -Wno-string-plus-int -fPIE -MD -MQ libblock.a.p/block_qcow2-bitmap.c.o -MF libblock.a.p/block_qcow2-bitmap.c.o.d -o libblock.a.p/block_qcow2-bitmap.c.o -c ../block/qcow2-bitmap.c error: Undefined temporary symbol .L_MergedGlobals.59 1 error generated.
Rebuilding the same file with previous llmv19 does not reproduce the issue.
This seems to be caused because the ppc64le backend is now using GlobalMerge instead PPCMergeStringPool.
Reported in bugzilla https://bugzilla.redhat.com/show_bug.cgi?id=2352554
Tulio reported it upstream as well https://github.com/llvm/llvm-project/issues/131394
- blocks
-
RHEL-81006 Rebase LLVM Toolset to LLVM 20 [rhel-9]
-
- Release Pending
-
- links to
-
RHBA-2025:148240
llvm update
