mirrors/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2025-11-04 10:40:15 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

kprobes/x86: Blacklist non-attachable interrupt functions

Browse source 
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>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yonghong Song <yhs@fb.com>
Link: http://lkml.kernel.org/r/20181206095648.GA8249@Dell
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andrea Righi 2018-12-06 10:56:48 +01:00 committed by Ingo Molnar
parent 43a1b0cb4c
commit a50480cb6d
1 changed files with 4 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

4
arch/x86/entry/entry_64.S
View file

@ -566,6 +566,7 @@ ENTRY(interrupt_entry)
ret ret
END(interrupt_entry) END(interrupt_entry)
_ASM_NOKPROBE(interrupt_entry)
/* Interrupt entry/exit. */ /* Interrupt entry/exit. */
@ -766,6 +767,7 @@ native_irq_return_ldt:
jmp native_irq_return_iret jmp native_irq_return_iret
#endif #endif
END(common_interrupt) END(common_interrupt)
_ASM_NOKPROBE(common_interrupt)
/* /*
* APIC interrupts. * APIC interrupts.
@ -780,6 +782,7 @@ ENTRY(\sym)
call \do_sym /* rdi points to pt_regs */ call \do_sym /* rdi points to pt_regs */
jmp ret_from_intr jmp ret_from_intr
END(\sym) END(\sym)
_ASM_NOKPROBE(\sym)
.endm .endm
/* Make sure APIC interrupt handlers end up in the irqentry section: */ /* Make sure APIC interrupt handlers end up in the irqentry section: */
@ -960,6 +963,7 @@ ENTRY(\sym)
jmp error_exit jmp error_exit
.endif .endif
_ASM_NOKPROBE(\sym)
END(\sym) END(\sym)
.endm .endm