From 56449f437add737a1e5e1cb7e00f63ac8ead1938 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 14 Apr 2009 11:24:36 +0200 Subject: [PATCH] tracing: make the trace clocks available generally Jeremy Fitzhardinge reported this build failure: LD .tmp_vmlinux1 arch/x86/kernel/built-in.o: In function `ds_take_timestamp': git/linux/arch/x86/kernel/ds.c:1380: undefined reference to `trace_clock_global' git/linux/arch/x86/kernel/ds.c:1380: undefined reference to `trace_clock_global' Which is due to !CONFIG_TRACING && CONFIG_X86_DS=y. Expose the trace clock code to CONFIG_X86_DS as well. [ Unfortunately librarizing doesnt work well - ancient architectures with no raw_local_irq_save() primitive break the build. ] Reported-by: Jeremy Fitzhardinge LKML-Reference: <49E4413F.7070700@goop.org> Signed-off-by: Ingo Molnar --- kernel/Makefile | 1 + kernel/trace/Makefile | 7 ++++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/kernel/Makefile b/kernel/Makefile index bab1dffe37e..c8e1be5f0b0 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -92,6 +92,7 @@ obj-$(CONFIG_LATENCYTOP) += latencytop.o obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += dma-coherent.o obj-$(CONFIG_FUNCTION_TRACER) += trace/ obj-$(CONFIG_TRACING) += trace/ +obj-$(CONFIG_X86_DS) += trace/ obj-$(CONFIG_SMP) += sched_cpupri.o obj-$(CONFIG_SLOW_WORK) += slow-work.o diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile index 2630f5121ec..ecc671e9f14 100644 --- a/kernel/trace/Makefile +++ b/kernel/trace/Makefile @@ -15,11 +15,16 @@ ifdef CONFIG_TRACING_BRANCHES KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING endif +# +# Make the trace clocks available generally: it's infrastructure +# relied on by ptrace for example: +# +obj-y += trace_clock.o + obj-$(CONFIG_FUNCTION_TRACER) += libftrace.o obj-$(CONFIG_RING_BUFFER) += ring_buffer.o obj-$(CONFIG_TRACING) += trace.o -obj-$(CONFIG_TRACING) += trace_clock.o obj-$(CONFIG_TRACING) += trace_output.o obj-$(CONFIG_TRACING) += trace_stat.o obj-$(CONFIG_TRACING) += trace_printk.o