Re: [GIT PULL] probes: Updates for v6.11
From: Stephen Rothwell
Date: Thu Jul 18 2024 - 20:28:37 EST
Hi Linus,
On Tue, 16 Jul 2024 23:44:45 +0900 Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> wrote:
>
> Probes updates for v6.11:
>
> Uprobes:
> - x86/shstk: Make return uprobe work with shadow stack.
> - Add uretprobe syscall which speeds up the uretprobe 10-30% faster. This
> syscall is automatically used from user-space trampolines which are
> generated by the uretprobe. If this syscall is used by normal
> user program, it will cause SIGILL. Note that this is currently only
> implemented on x86_64.
> (This also has 2 fixes for adjusting the syscall number to avoid conflict
> with new *attrat syscalls.)
But another fix that I have been carrying was missed:
https://lore.kernel.org/lkml/20240717132155.6ca2ce47@xxxxxxxxxxxxxxxx/
Just the added change to scripts/syscall.tbl (and obviously needs
adjusting because the *xattrat* syscalss have not been merged yet).
--
Cheers,
Stephen Rothwell
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