Commit-ID: ce37f400336a34bb6e72c4700f9dcc2a41ff7163
Gitweb: http://git.kernel.org/tip/ce37f400336a34bb6e72c4700f9dcc2a41ff7163
Author: David Vrabel <david.vrabel@xxxxxxxxxx>
AuthorDate: Mon, 8 Oct 2012 13:07:30 +0100
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 24 Oct 2012 13:14:22 +0200
x86: Allow tracing of functions in arch/x86/kernel/rtc.c
Move native_read_tsc() to tsc.c to allow profiling to be
re-enabled for rtc.c.
Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1349698050-6560-1-git-send-email-david.vrabel@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/kernel/Makefile | 1 -
arch/x86/kernel/rtc.c | 6 ------
arch/x86/kernel/tsc.c | 6 ++++++
3 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 91ce48f..9fd5eed 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -9,7 +9,6 @@ CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
CFLAGS_REMOVE_tsc.o = -pg
-CFLAGS_REMOVE_rtc.o = -pg
CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
CFLAGS_REMOVE_pvclock.o = -pg
CFLAGS_REMOVE_kvmclock.o = -pg
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 4929c1b..801602b 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -195,12 +195,6 @@ void read_persistent_clock(struct timespec *ts)
ts->tv_nsec = 0;
}
-unsigned long long native_read_tsc(void)
-{
- return __native_read_tsc();
-}
-EXPORT_SYMBOL(native_read_tsc);
-
static struct resource rtc_resources[] = {
[0] = {
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index cfa5d4f..06ccb50 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -77,6 +77,12 @@ unsigned long long
sched_clock(void) __attribute__((alias("native_sched_clock")));
#endif
+unsigned long long native_read_tsc(void)
+{
+ return __native_read_tsc();
+}
+EXPORT_SYMBOL(native_read_tsc);
+
int check_tsc_unstable(void)
{
return tsc_unstable;
--
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