Messages in this thread Patch in this message | | | Date | Thu, 6 Dec 2018 10:56:48 +0100 | From | Andrea Righi <> | Subject | [PATCH] kprobes: x86_64: blacklist non-attachable interrupt functions |
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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.andrea@gmail.com> --- 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
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