Re: arm64:, Re: [RFC] Kernel livepatching support in GCC

2015-10-23 Thread Szabolcs Nagy
On 23/10/15 10:11, AKASHI Takahiro wrote: On 10/22/2015 07:26 PM, Szabolcs Nagy wrote: On 22/10/15 11:14, AKASHI Takahiro wrote: I also have my own version of livepatch support for arm64 using yet-coming "-fprolog-add=N" option :) As we discussed before, the main difference will be how we sho

Re: arm64:, Re: [RFC] Kernel livepatching support in GCC

2015-10-23 Thread AKASHI Takahiro
On 10/22/2015 07:26 PM, Szabolcs Nagy wrote: On 22/10/15 11:14, AKASHI Takahiro wrote: On 10/22/2015 06:07 PM, libin wrote: 在 2015/5/28 16:39, Maxim Kuvyrkov 写道: Our proposal is that instead of adding -mfentry/-mnop-count/-mrecord-mcount options to other architectures, we should implement a t

Re: arm64:, Re: [RFC] Kernel livepatching support in GCC

2015-10-22 Thread Szabolcs Nagy
On 22/10/15 11:14, AKASHI Takahiro wrote: On 10/22/2015 06:07 PM, libin wrote: 在 2015/5/28 16:39, Maxim Kuvyrkov 写道: Our proposal is that instead of adding -mfentry/-mnop-count/-mrecord-mcount options to other architectures, we should implement a target-independent option -fprolog-pad=N, which

arm64:, Re: [RFC] Kernel livepatching support in GCC

2015-10-22 Thread AKASHI Takahiro
Li, (added linux-arm-kernel to Cc.) On 10/22/2015 06:07 PM, libin wrote: 在 2015/5/28 16:39, Maxim Kuvyrkov 写道: Hi, Akashi-san and I have been discussing required GCC changes to make kernel's livepatching work for AArch64 and other architectures. At the moment livepatching is supported for