diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2017-08-28 08:47:36 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-29 12:07:24 +0200 |
| commit | 73285527804402befe5d5140aeede21c16544b4c (patch) | |
| tree | 89c2e9c4cfde78f2b8cf406679dffb4182dc98f6 | |
| parent | a45525b5b47c10c0446eda21227792b39af233dc (diff) | |
x86/tracing: Build tracepoints only when they are used
The tracepoint macro magic emits code for all tracepoints in a event header
file. That code stays around even if the tracepoint is not used at all. The
linker does not discard it.
Build the various irq_vector tracepoints dependent on the appropriate CONFIG
switches.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064957.770651777@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/include/asm/trace/irq_vectors.h | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/arch/x86/include/asm/trace/irq_vectors.h b/arch/x86/include/asm/trace/irq_vectors.h index a1bdc25b6507..1599d394c8c1 100644 --- a/arch/x86/include/asm/trace/irq_vectors.h +++ b/arch/x86/include/asm/trace/irq_vectors.h @@ -7,6 +7,8 @@ #include <linux/tracepoint.h> #include <asm/trace/common.h> +#ifdef CONFIG_X86_LOCAL_APIC + extern int trace_resched_ipi_reg(void); extern void trace_resched_ipi_unreg(void); @@ -53,18 +55,6 @@ DEFINE_EVENT_FN(x86_irq_vector, name##_exit, \ DEFINE_IRQ_VECTOR_EVENT(local_timer); /* - * The ifdef is required because that tracepoint macro hell emits tracepoint - * code in files which include this header even if the tracepoint is not - * enabled. Brilliant stuff that. - */ -#ifdef CONFIG_SMP -/* - * reschedule - called when entering/exiting a reschedule vector handler - */ -DEFINE_RESCHED_IPI_EVENT(reschedule); -#endif - -/* * spurious_apic - called when entering/exiting a spurious apic vector handler */ DEFINE_IRQ_VECTOR_EVENT(spurious_apic); @@ -80,6 +70,7 @@ DEFINE_IRQ_VECTOR_EVENT(error_apic); */ DEFINE_IRQ_VECTOR_EVENT(x86_platform_ipi); +#ifdef CONFIG_IRQ_WORK /* * irq_work - called when entering/exiting a irq work interrupt * vector handler @@ -96,6 +87,18 @@ DEFINE_IRQ_VECTOR_EVENT(irq_work); * 4) goto 1 */ TRACE_EVENT_PERF_PERM(irq_work_exit, is_sampling_event(p_event) ? -EPERM : 0); +#endif + +/* + * The ifdef is required because that tracepoint macro hell emits tracepoint + * code in files which include this header even if the tracepoint is not + * enabled. Brilliant stuff that. + */ +#ifdef CONFIG_SMP +/* + * reschedule - called when entering/exiting a reschedule vector handler + */ +DEFINE_RESCHED_IPI_EVENT(reschedule); /* * call_function - called when entering/exiting a call function interrupt @@ -108,24 +111,33 @@ DEFINE_IRQ_VECTOR_EVENT(call_function); * single interrupt vector handler */ DEFINE_IRQ_VECTOR_EVENT(call_function_single); +#endif +#ifdef CONFIG_X86_MCE_THRESHOLD /* * threshold_apic - called when entering/exiting a threshold apic interrupt * vector handler */ DEFINE_IRQ_VECTOR_EVENT(threshold_apic); +#endif +#ifdef CONFIG_X86_MCE_AMD /* * deferred_error_apic - called when entering/exiting a deferred apic interrupt * vector handler */ DEFINE_IRQ_VECTOR_EVENT(deferred_error_apic); +#endif +#ifdef CONFIG_X86_THERMAL_VECTOR /* * thermal_apic - called when entering/exiting a thermal apic interrupt * vector handler */ DEFINE_IRQ_VECTOR_EVENT(thermal_apic); +#endif + +#endif /* CONFIG_X86_LOCAL_APIC */ #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . |