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authorIngo Molnar <mingo@elte.hu>2009-04-14 11:24:36 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-14 18:35:13 +0200
commit56449f437add737a1e5e1cb7e00f63ac8ead1938 (patch)
treed7c8f0f783534d3cfe550606b871d9bbeaa6e3f3
parenta34b50ddc265bae058c66661b096ef6384c5a8b1 (diff)
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 <jeremy@goop.org> LKML-Reference: <49E4413F.7070700@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/Makefile1
-rw-r--r--kernel/trace/Makefile7
2 files changed, 7 insertions, 1 deletions
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