On Thu, 6 Dec 2018 10:56:48 +0100 Andrea Righi <righi.and...@gmail.com> wrote:
> These interrupt functions are already non-attachable by kprobes. > Blacklist them explicitly so that they can show up in > /sys/kernel/debug/kprobes/blacklist and tools like BCC can use this > additional information. > > Signed-off-by: Andrea Righi <righi.and...@gmail.com> For the short term, this is OK. But this is not the best way to cover other functions which are also prohibited by arch_within_kprobe_blacklist(). I'll fix this issue later. Acked-by: Masami Hiramatsu <mhira...@kernel.org> Thank you, > --- > arch/x86/entry/entry_64.S | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S > index ce25d84023c0..1f0efdb7b629 100644 > --- a/arch/x86/entry/entry_64.S > +++ b/arch/x86/entry/entry_64.S > @@ -566,6 +566,7 @@ ENTRY(interrupt_entry) > > ret > END(interrupt_entry) > +_ASM_NOKPROBE(interrupt_entry) > > > /* Interrupt entry/exit. */ > @@ -766,6 +767,7 @@ native_irq_return_ldt: > jmp native_irq_return_iret > #endif > END(common_interrupt) > +_ASM_NOKPROBE(common_interrupt) > > /* > * APIC interrupts. > @@ -780,6 +782,7 @@ ENTRY(\sym) > call \do_sym /* rdi points to pt_regs */ > jmp ret_from_intr > END(\sym) > +_ASM_NOKPROBE(\sym) > .endm > > /* Make sure APIC interrupt handlers end up in the irqentry section: */ > @@ -960,6 +963,7 @@ ENTRY(\sym) > > jmp error_exit > .endif > +_ASM_NOKPROBE(\sym) > END(\sym) > .endm > > -- > 2.17.1 -- Masami Hiramatsu <mhira...@kernel.org>
