Re: [PATCH 0/8] unwind, arm64: add sframe unwinder for kernel
Song Liu <[email protected]>
| Newsgroups | org.kernel.vger.linux-toolchains,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel,org.kernel.vger.live-patching |
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| Message-ID | <CAPhsuW76YZRBFgQf9PJ3OkaarbyDyWg=yXin9CXgNSwZYRnTZg@mail.gmail.com> |
Hi Roman, On Thu, Jan 30, 2025 at 11:01 AM Roman Gushchin <[email protected]> wrote: > > On Thu, Jan 30, 2025 at 10:34:09AM -0800, Song Liu wrote: > > On Thu, Jan 30, 2025 at 9:59 AM Song Liu <[email protected]> wrote: > > > > > > I missed this set before sending my RFC set. If this set works well, we > > > won't need the other set. I will give this one a try. > > > > I just realized that llvm doesn't support sframe yet. So we (Meta) still > > need some sframe-less approach before llvm supports sframe. > > > > IIRC, Google also uses llvm to compile the kernel. Weinan, would > > you mind share your thoughts on how we can adopt this before > > llvm supports sframe? (compile arm64 kernel with gcc?) > > Hi Song, > > the plan is to start the work on adding sframe support to llvm > in parallel to landing these changes upstream. From the initial > assessment it shouldn't be too hard. Thanks for the information! Song