Hi Josh, I have attached the config I used for LLVM and gcc. Thanks, Song On Tue, Sep 3, 2024 at 9:30 PM Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote: > > On Tue, Sep 03, 2024 at 10:32:00AM -0700, Song Liu wrote: > > Hi Josh, > > > > Thanks for the patchset! We really need this work so that we can undo our > > hack for LTO enabled kernels. > > > > On Mon, Sep 2, 2024 at 9:00 PM Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote: > > > > > > Hi, > > > > > > Here's a new way to build livepatch modules called klp-build. > > > > > > I started working on it when I realized that objtool already does 99% of > > > the work needed for detecting function changes. > > > > > > This is similar in concept to kpatch-build, but the implementation is > > > much cleaner. > > > > > > Personally I still have reservations about the "source-based" approach > > > (klp-convert and friends), including the fragility and performance > > > concerns of -flive-patching. I would submit that klp-build might be > > > considered the "official" way to make livepatch modules. > > > > > > Please try it out and let me know what you think. Based on v6.10. > > > > > > Also avaiable at: > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git klp-build-rfc > > > > I tried to compile the code in this branch with gcc-12 and llvm-18. Some > > of these errors are easy to fix (attached below). But some are trickier, for > > example: > > > > with gcc-12: > > ... > > BTFIDS vmlinux > > NM System.map > > SORTTAB vmlinux > > incomplete ORC unwind tables in file: vmlinux > > Failed to sort kernel tables > > Thanks for trying it! If you share your config(s) I can look into it. > > I haven't tried clang yet, but will soon. > > -- > Josh
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gcc.config
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llvm.config
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