Commit-ID: a50480cb6d61d5c5fc13308479407b628b6bc1c5 Gitweb: https://git.kernel.org/tip/a50480cb6d61d5c5fc13308479407b628b6bc1c5 Author: Andrea Righi <righi.andrea@xxxxxxxxx> AuthorDate: Thu, 6 Dec 2018 10:56:48 +0100 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Thu, 6 Dec 2018 16:52:03 +0100 kprobes/x86: Blacklist non-attachable interrupt functions 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@xxxxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxx> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@xxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: David S. Miller <davem@xxxxxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx> Cc: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Yonghong Song <yhs@xxxxxx> Link: http://lkml.kernel.org/r/20181206095648.GA8249@Dell Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- 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
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