----- On Jun 15, 2018, at 6:58 AM, James Hogan jho...@kernel.org wrote: > On Thu, Jun 14, 2018 at 04:52:10PM -0700, Paul Burton wrote: >> +#define __RSEQ_ASM_DEFINE_TABLE(version, flags, start_ip, >> \ > > Nit: technically all these \'s are on 81st column... > >> +#define __RSEQ_ASM_DEFINE_ABORT(table_label, label, teardown, >> \ >> + abort_label, version, flags, >> \ >> + start_ip, post_commit_offset, abort_ip) >> \ >> + ".balign 32\n\t" >> \ > > ARM doesn't do this for DEFINE_ABORT. Is it intentional that we do for > MIPS?
Given that include/uapi/linux/rseq.h declares struct rseq_cs as __attribute__((aligned(4 * sizeof(__u64)))), and considering this comment: /* * struct rseq_cs is aligned on 4 * 8 bytes to ensure it is always * contained within a single cache-line. It is usually declared as * link-time constant data. */ The .balign 32 is the right thing to do here. I will add a .balign 32 to ARM selftests code as well. Thanks, Mathieu > > Thanks > James -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com
