Hi Jason,

On Thu, 12 Sept 2024 at 00:15, ci_notify@linaro.org wrote:

Dear contributor, our automatic CI has detected problems related to your patch(es). Please find some details below. If you have any questions, please follow up on linaro-toolchain@lists.linaro.org mailing list, Libera's #linaro-tcwg channel, or ping your favourite Linaro toolchain developer on the usual project channel.

We understand that it might be difficult to find the necessary logs or reproduce the issue locally. If you can't get what you need from our CI within minutes, let us know and we will be happy to help.

We track this report status in https://linaro.atlassian.net/browse/GNU-1339 , please let us know if you are looking at the problem and/or when you have a fix.

In arm-eabi cortex-m7 hard after:

| commit gcc-15-3532-g7cebc6384a0a | Author: Jason Merrill jason@redhat.com | Date: Fri Sep 6 15:28:53 2024 -0400 | | c++: exception spec and stdlib specialization | | We were silently accepting the pr65923.C specialization of std::swap with | the wrong exception specification; it should be declared noexcept. Let's | limit ignoring mismatch with system headers to extern "C" functions so we | get a diagnostic for the C++ library. | | ... 18 lines of the commit log omitted.

FAIL: 6 regressions: 6 improvements

regressions.sum: === g++ tests ===

Running g++:g++.dg/dg.exp ... FAIL: g++.dg/cpp1z/aligned-new3.C -std=gnu++17 (test for excess errors) UNRESOLVED: g++.dg/cpp1z/aligned-new3.C -std=gnu++17 compilation failed to produce executable FAIL: g++.dg/cpp1z/aligned-new3.C -std=gnu++20 (test for excess errors) UNRESOLVED: g++.dg/cpp1z/aligned-new3.C -std=gnu++20 compilation failed to produce executable FAIL: g++.dg/cpp1z/aligned-new3.C -std=gnu++26 (test for excess errors) UNRESOLVED: g++.dg/cpp1z/aligned-new3.C -std=gnu++26 compilation failed to produce executable

improvements.sum: === g++ tests ===

Running g++:g++.dg/dg.exp ... UNRESOLVED: g++.dg/cpp1z/aligned-new3.C -std=c++20 compilation failed to produce executable UNRESOLVED: g++.dg/cpp1z/aligned-new3.C -std=c++26 compilation failed to produce executable FAIL: g++.dg/cpp1z/aligned-new3.C -std=c++26 (test for excess errors) UNRESOLVED: g++.dg/cpp1z/aligned-new3.C -std=c++17 compilation failed to produce executable FAIL: g++.dg/cpp1z/aligned-new3.C -std=c++20 (test for excess errors) FAIL: g++.dg/cpp1z/aligned-new3.C -std=c++17 (test for excess errors)

This is not a regression, these tests used to fail with -std=c++XX and now they still fail with -std=gnuXX. I guess this is the effect of adding 'dg-options ""' ?

And... the reason they fail to produce an executable is a recent patch of mine in the linker, which should now be fixed.

Thanks,

Christophe

You can find the failure logs in *.log.1.xz files in

• https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_eabi-bui...

The full lists of regressions and improvements as well as configure and make commands are in

• https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_eabi-bui...

The list of [ignored] baseline and flaky failures are in

• https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_eabi-bui...

The configuration of this build is: CI config tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv7e-m+fp.dp -mtune=cortex-m7 -mfloat-abi=hard -mfpu=auto

-----------------8<--------------------------8<--------------------------8<-------------------------- The information below can be used to reproduce a debug environment:

Current build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_eabi-bui... Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_eabi-bui...

Reproduce last good and first bad builds: https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha...

Full commit : https://github.com/gcc-mirror/gcc/commit/7cebc6384a0ad63d444029472a8ed1afe96...

List of configurations that regressed due to this commit :

• tcwg_gnu_embed_check_gcc

** master-thumb_m7_eabi *** FAIL: 6 regressions: 6 improvements *** https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha... *** https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_eabi-bui...