1e9b51c283
Impact: add new ftrace plugin A prototype for a BTS ftrace plug-in. The tracer collects branch trace in a cyclic buffer for each cpu. The tracer is not configurable and the trace for each snapshot is appended when doing cat /debug/tracing/trace. This is a proof of concept that will be extended with future patches to become a (hopefully) useful tool. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
37 lines
1.2 KiB
Makefile
37 lines
1.2 KiB
Makefile
|
|
# Do not instrument the tracer itself:
|
|
|
|
ifdef CONFIG_FUNCTION_TRACER
|
|
ORIG_CFLAGS := $(KBUILD_CFLAGS)
|
|
KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS))
|
|
|
|
# selftest needs instrumentation
|
|
CFLAGS_trace_selftest_dynamic.o = -pg
|
|
obj-y += trace_selftest_dynamic.o
|
|
endif
|
|
|
|
# If unlikely tracing is enabled, do not trace these files
|
|
ifdef CONFIG_TRACING_BRANCHES
|
|
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
|
|
endif
|
|
|
|
obj-$(CONFIG_FUNCTION_TRACER) += libftrace.o
|
|
obj-$(CONFIG_RING_BUFFER) += ring_buffer.o
|
|
|
|
obj-$(CONFIG_TRACING) += trace.o
|
|
obj-$(CONFIG_CONTEXT_SWITCH_TRACER) += trace_sched_switch.o
|
|
obj-$(CONFIG_SYSPROF_TRACER) += trace_sysprof.o
|
|
obj-$(CONFIG_FUNCTION_TRACER) += trace_functions.o
|
|
obj-$(CONFIG_IRQSOFF_TRACER) += trace_irqsoff.o
|
|
obj-$(CONFIG_PREEMPT_TRACER) += trace_irqsoff.o
|
|
obj-$(CONFIG_SCHED_TRACER) += trace_sched_wakeup.o
|
|
obj-$(CONFIG_NOP_TRACER) += trace_nop.o
|
|
obj-$(CONFIG_STACK_TRACER) += trace_stack.o
|
|
obj-$(CONFIG_MMIOTRACE) += trace_mmiotrace.o
|
|
obj-$(CONFIG_BOOT_TRACER) += trace_boot.o
|
|
obj-$(CONFIG_FUNCTION_RET_TRACER) += trace_functions_return.o
|
|
obj-$(CONFIG_TRACE_BRANCH_PROFILING) += trace_branch.o
|
|
obj-$(CONFIG_BTS_TRACER) += trace_bts.o
|
|
|
|
libftrace-y := ftrace.o
|