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tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 1/8/24 00:16, Jan Beulich wrote: > On 08.01.2024 01:46, Indu Bhagat wrote: >> Hi Jan, Nick, >> >> I am working on addressing the review comments in V4 and will continue >> that review in a separate thread. >> >> Meanwhile... >> >> On 1/5/24 05:58, Jan Beulich wrote: >>>> + dwarf_reg = ginsn_dw2_regnum (temp); >>>> + } >>>> + >>>> + gas_assert (dwarf_reg != Dw2Inval); /* Needs to be addressed. */ >>> Without actually addressing this (and possible similar cases elsewhere), I >>> don't think this can go in as other than experimental code (which the >>> NEWS entry then should state, and where there then should be a plan for an >>> easy approach of probing gas for no-longer-experimental SCFI support). >> >> ... in this specific case, the /* Needs to be addressed. */ comment is >> somewhat stale and may have lead the impression that this is an >> unhandled case (EIP is the pending unhandled case, I will deal with it >> in V5). >> >> Moving forward, I would like to get consensus on whats the way forward >> for SCFI series, especially whether there is agreement on releasing what >> will be the V5 with binutils 2.42. >> >> My take on "SCFI should go as experimental code" : my priority is to get >> this option to users and to continue development of SCFI incrementally >> with the help/reviews from community. If the reviewers/maintainers >> think, offering this first as --scfi=experimental, which later is >> established as --scfi=all, in a future release is the best way to move >> forward, I can make the necessary changes now. > > I'd be okay with this as a plan. Before fully supported, I'd actually hope > to see at least one other architecture to also use this machinery. Yet > maybe that's asking for too much ... > Thanks Jan. BTW, I have implementation for SCFI for aarch64 in a personal branch. FWIW, the current state of ginsn/scfi machinery (as posted in V4) "works" on aarch64. That said, the aarch64 implementation is minimally tested at this time and needs more work. I hope to upstream that at some point. Indu