[PATCH 0/1] rseq/selftests: add __rseq_abi misalignment check

While implementing rseq selftest for s390 a glibc problem with tls variables alignment has been discovered. It turned out to be a general problem affecting several architectures. The bug opened for this problem:

https://sourceware.org/bugzilla/show_bug.cgi?id=23403

There is no fix yet. On s390 __rseq_abi ends up aligned to 0x10 instead of 0x20 which makes rseq selftest fail every time.

The change proposed adds __rseq_abi misalignment check, produces user friendly message and skips the test.

Vasily Gorbik (1): rseq/selftests: add __rseq_abi misalignment check

tools/testing/selftests/rseq/rseq.c | 19 +++++++++++++++++++ .../testing/selftests/rseq/run_param_test.sh | 4 ++-- 2 files changed, 21 insertions(+), 2 deletions(-)