Dear contributor, Our automatic CI has detected problems related to your patch(es). Please find some details below. In arm-eabi cortex-m3 softfp, after: | commit gcc-17-1905-g70e630b6d29 | Author: Jonathan Wakely | Date: Thu Jun 25 12:59:04 2026 +0100 | | libstdc++: Update feature test macros and tests for C++29 | | With r17-1595-g0c5c6249a2e9a7 G++ supports -std=c++29 so update our | feature test macro generation and testsuite to know about it. | | ... 19 lines of the commit log omitted. Produces 5 regressions 5 fixes: | | regressions.sum: | Running libstdc++:libstdc++-dg/conformance.exp ... | FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++29 execution test | FAIL: 19_diagnostics/stacktrace/output.cc -std=gnu++29 execution test | FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++29 execution test | FAIL: 27_io/print/2.cc -std=gnu++29 (test for excess errors) | ... and 1 more | | fixes.sum: | Running libstdc++:libstdc++-dg/conformance.exp ... | FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++26 execution test | FAIL: 19_diagnostics/stacktrace/output.cc -std=gnu++26 execution test | FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++26 execution test | FAIL: 27_io/print/2.cc -std=gnu++26 (test for excess errors) | ... and 1 more Used configuration : *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv7-m -mtune=cortex-m3 -mfloat-abi=softfp -mfpu=auto *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-cpu=cortex-m3 --with-float=softfp --target_board=-mthumb/-march=armv7-m/-mtune=cortex-m3/-mfloat-abi=softfp/-mfpu=auto qemu_cpu=cortex-m3 We track this bug report under https://linaro.atlassian.net/browse/GNU-1942. (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. -----------------8<--------------------------8<--------------------------8<-------------------------- The information below contains the details of the failures, and the ways to reproduce a debug environment: You can find the failure logs in *.log.1.xz files in * http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m3_softfp_eabi-build/builds/10181/archive/artifacts/00-sumfiles/ The full lists of regressions and improvements as well as configure and make commands are in * http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m3_softfp_eabi-build/builds/10181/archive/artifacts/notify/ The list of [ignored] baseline and flaky failures are in * http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m3_softfp_eabi-build/builds/10181/archive/artifacts/sumfiles/xfails.xfail Current build : http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m3_softfp_eabi-build/builds/10181/archive/artifacts/ Reference build : http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m3_softfp_eabi-build/builds/10180/archive/artifacts/ Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/70e630b6d29b750173920d19bd87c3930b7be532/tcwg_gnu_embed_check_gcc/master-thumb_m3_softfp_eabi/reproduction_instructions.txt Full commit : See in git+ssh://linaroci@gcc.gnu.org/git/gcc.git