Successfully identified regression in *glibc* in CI configuration tcwg_cross/gnu-master-aarch64-build_cross. So far, this commit has regressed CI configurations: - tcwg_cross/gnu-master-aarch64-build_cross

Culprit: <cut> commit b156c5f0a72eca8b28e1e5a5e51f29cf5ffb3bfb Author: Armin Brauns armin.brauns@gmail.com Date: Tue Jul 6 12:54:48 2021 +0200

manual: fix description for preadv() </cut>

Results regressed to (for first_bad == b156c5f0a72eca8b28e1e5a5e51f29cf5ffb3bfb) # reset_artifacts: -10 # true: 0 # build_abe binutils: 1 # build_abe stage1: 2 # build_abe linux: 3 # First few build errors in logs: # 00:00:17 make[2]: *** [/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/sysd-rules:483: /home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/csu/start.o] Error 1 # 00:00:17 make[2]: *** [/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/sysd-rules:499: /home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/csu/start.os] Error 1 # 00:00:17 make[2]: *** [/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/sysd-rules:483: /home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/csu/crtn.o] Error 1 # 00:00:17 make[2]: *** [/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/sysd-rules:483: /home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/csu/crti.o] Error 1 # 00:00:17 make[2]: *** [../o-iterator.mk:9: /home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/csu/check_fds.o] Error 1 # 00:00:17 ../sysdeps/unix/sysv/linux/aarch64/sysdep.h:190:17: error: invalid register name for ‘_x0’ # 00:00:17 ../sysdeps/unix/sysv/linux/aarch64/sysdep.h:174:22: error: invalid register name for ‘_x8’ # 00:00:17 ../sysdeps/aarch64/nptl/tls.h:95:21: error: ‘__builtin_thread_pointer’ is not supported on this target # 00:00:17 make[2]: *** [/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/sysd-rules:9: /home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/csu/libc-start.o] Error 1 # 00:00:17 make[2]: *** [../o-iterator.mk:9: /home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/x86_64-pc-linux-gnu/aarch64-linux-gnu/glibc-glibc.git~master/csu/check_fds.os] Error 1

from (for last_good == 832f50be6c9c010e46180d14126bbb81f35e808c) # reset_artifacts: -10 # true: 0 # build_abe binutils: 1 # build_abe stage1: 2 # build_abe linux: 3 # build_abe glibc: 4 # build_abe stage2: 5 # build_abe qemu: 6

Artifacts of last_good build: https://ci.linaro.org/job/tcwg_cross-bisect-gnu-master-aarch64-build_cross/2... Artifacts of first_bad build: https://ci.linaro.org/job/tcwg_cross-bisect-gnu-master-aarch64-build_cross/2... Build top page/logs: https://ci.linaro.org/job/tcwg_cross-bisect-gnu-master-aarch64-build_cross/2...

Configuration details:

Reproduce builds: <cut> mkdir investigate-glibc-b156c5f0a72eca8b28e1e5a5e51f29cf5ffb3bfb cd investigate-glibc-b156c5f0a72eca8b28e1e5a5e51f29cf5ffb3bfb

git clone https://git.linaro.org/toolchain/jenkins-scripts

mkdir -p artifacts/manifests curl -o artifacts/manifests/build-baseline.sh https://ci.linaro.org/job/tcwg_cross-bisect-gnu-master-aarch64-build_cross/2... --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_cross-bisect-gnu-master-aarch64-build_cross/2... --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_cross-bisect-gnu-master-aarch64-build_cross/2... --fail chmod +x artifacts/test.sh

# Reproduce the baseline build (build all pre-requisites) ./jenkins-scripts/tcwg_gnu-build.sh @@ artifacts/manifests/build-baseline.sh

cd glibc

# Reproduce first_bad build git checkout --detach b156c5f0a72eca8b28e1e5a5e51f29cf5ffb3bfb ../artifacts/test.sh

# Reproduce last_good build git checkout --detach 832f50be6c9c010e46180d14126bbb81f35e808c ../artifacts/test.sh

cd .. </cut>

History of pending regressions and results: https://git.linaro.org/toolchain/ci/base-artifacts.git/log/?h=linaro-local/c...

Artifacts: https://ci.linaro.org/job/tcwg_cross-bisect-gnu-master-aarch64-build_cross/2... Build log: https://ci.linaro.org/job/tcwg_cross-bisect-gnu-master-aarch64-build_cross/2...

Full commit (up to 1000 lines): <cut> commit b156c5f0a72eca8b28e1e5a5e51f29cf5ffb3bfb Author: Armin Brauns armin.brauns@gmail.com Date: Tue Jul 6 12:54:48 2021 +0200

manual: fix description for preadv() --- manual/llio.texi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/manual/llio.texi b/manual/llio.texi index cbc4909fd5..eafc27120d 100644 --- a/manual/llio.texi +++ b/manual/llio.texi @@ -1161,7 +1161,7 @@ error. The possible errors are the same as in @code{write}.

This function is similar to the @code{readv} function, with the difference it adds an extra @var{offset} parameter of type @code{off_t} similar to -@code{pread}. The data is written to the file starting at position +@code{pread}. The data is read from the file starting at position @var{offset}. The position of the file descriptor itself is not affected by the operation. The value is the same as before the call.

</cut>