• Linus Torvalds's avatar
    Merge branch 'x86-tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 96a3d998
    Linus Torvalds authored
    Pull x86 tracing updates from Ingo Molnar:
     "This tree adds IRQ vector tracepoints that are named after the handler
      and which output the vector #, based on a zero-overhead approach that
      relies on changing the IDT entries, by Seiji Aguchi.
    
      The new tracepoints look like this:
    
       # perf list | grep -i irq_vector
        irq_vectors:local_timer_entry                      [Tracepoint event]
        irq_vectors:local_timer_exit                       [Tracepoint event]
        irq_vectors:reschedule_entry                       [Tracepoint event]
        irq_vectors:reschedule_exit                        [Tracepoint event]
        irq_vectors:spurious_apic_entry                    [Tracepoint event]
        irq_vectors:spurious_apic_exit                     [Tracepoint event]
        irq_vectors:error_apic_entry                       [Tracepoint event]
        irq_vectors:error_apic_exit                        [Tracepoint event]
       [...]"
    
    * 'x86-tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      x86/tracing: Add config option checking to the definitions of mce handlers
      trace,x86: Do not call local_irq_save() in load_current_idt()
      trace,x86: Move creation of irq tracepoints from apic.c to irq.c
      x86, trace: Add irq vector tracepoints
      x86: Rename variables for debugging
      x86, trace: Introduce entering/exiting_irq()
      tracing: Add DEFINE_EVENT_FN() macro
    96a3d998
entry_64.S 47 KB