Should be fixed by GCC commit 6401cc2efae456806f3376810098d99e518577fe.
Ian
On Thu, Sep 3, 2026 at 1:30 AM ci_notify@linaro.org wrote:
Dear contributor,
Our automatic CI has detected problems related to your patch(es). Please find some details below.
In bootstrap_build master-arm-bootstrap_ubsan, after: | commit gcc-17-3835-g8858cb3a6af5 | Author: Ian Lance Taylor iant@golang.org | Date: Tue Sep 1 15:08:41 2026 -0700 | | libbacktrace: handle MOREDATA correctly without debug info | | Based on patch from Andi Kleen. | | * elf.c (elf_nodebug): Handle state->moredata. | ... 14 lines of the commit log omitted.
Produces Failure: | Results changed to | # reset_artifacts: | -10 | # true: | 0 | # build_abe bootstrap_ubsan: | # FAILED | # First few build errors in logs: | # 00:52:21 collect2: error: ld returned 1 exit status | # 00:52:21 make[3]: *** [/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/snapshots/gcc.git~master/gcc/c/Make-lang.in:88: cc1] Error 1 | # 00:52:21 make[2]: *** [Makefile:5747: all-stage2-gcc] Error 2 | # 00:52:21 make[1]: *** [Makefile:27721: stage2-bubble] Error 2 | # 00:52:21 make: *** [Makefile:1140: all] Error 2 | | From | # reset_artifacts: | -10 | # true: | 0 | # build_abe bootstrap_ubsan: | 1
Used configuration : *CI config* tcwg_bootstrap_build master-arm-bootstrap_ubsan *configure and test flags:* none, autodetected on armv8l-unknown-linux-gnueabihf
We track this bug report under https://linaro.atlassian.net/browse/GNU-2019. (Require Linaro login) Please let us know if you have a fix.
If you have any questions regarding this report, please ask on linaro-toolchain@lists.linaro.org mailing list.
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The information below contains the details of the failures, and the ways to reproduce a debug environment:
You can find the failure logs in
The full lists of regressions and improvements as well as configure and make commands are in
Current build : http://54.172.246.49:9090/jobs/tcwg_bootstrap_build--master-arm-bootstrap_ub... Reference build : http://54.172.246.49:9090/jobs/tcwg_bootstrap_build--master-arm-bootstrap_ub...
Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sh...
Full commit : See in git+ssh://linaroci@gcc.gnu.org/git/gcc.git