Hi, The title is not updated. It should be; rethook: x86: Add rethook x86 porting (drived from "fprobe: Introduce fprobe function entry/exit probe" series) Thank you, On Wed, 23 Mar 2022 11:34:46 +0900 Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote: > Hi, > > Here is the 13th version of rethook x86 port. This is developed for a part > of fprobe series [1] for hooking function return. But since I forgot to send > it to arch maintainers, that caused conflict with IBT and SLS mitigation series. > Now I picked the x86 rethook part and send it to x86 maintainers to be > reviewed. > > [1] https://lore.kernel.org/all/164735281449.1084943.12438881786173547153.stgit@devnote2/T/#u > > Note that this patch is still for the bpf-next since the rethook itself > is on the bpf-next tree. But since this also uses the ANNOTATE_NOENDBR > macro which has been introduced by IBT/ENDBR patch, to build this series > you need to merge the tip/master branch with the bpf-next. > (hopefully, it is rebased soon) > > The fprobe itself is for providing the function entry/exit probe > with multiple probe point. The rethook is a sub-feature to hook the > function return as same as kretprobe does. Eventually, I would like > to replace the kretprobe's trampoline with this rethook. > > Thank you, > > --- > > Masami Hiramatsu (1): > rethook: x86: Add rethook x86 implementation > > > arch/x86/Kconfig | 1 > arch/x86/include/asm/unwind.h | 8 ++- > arch/x86/kernel/Makefile | 1 > arch/x86/kernel/kprobes/common.h | 1 > arch/x86/kernel/rethook.c | 121 ++++++++++++++++++++++++++++++++++++++ > 5 files changed, 131 insertions(+), 1 deletion(-) > create mode 100644 arch/x86/kernel/rethook.c > > -- > Masami Hiramatsu (Linaro) <mhiramat@xxxxxxxxxx> -- Masami Hiramatsu <mhiramat@xxxxxxxxxx>
