diff options
Diffstat (limited to 'meta/recipes-kernel/lttng/lttng-ust-0.11/remove_ppc_specific_time_reading_function.patch')
-rw-r--r-- | meta/recipes-kernel/lttng/lttng-ust-0.11/remove_ppc_specific_time_reading_function.patch | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/meta/recipes-kernel/lttng/lttng-ust-0.11/remove_ppc_specific_time_reading_function.patch b/meta/recipes-kernel/lttng/lttng-ust-0.11/remove_ppc_specific_time_reading_function.patch deleted file mode 100644 index c5487fd91..000000000 --- a/meta/recipes-kernel/lttng/lttng-ust-0.11/remove_ppc_specific_time_reading_function.patch +++ /dev/null @@ -1,85 +0,0 @@ -Dexuan Cui <dexuan.cui@intel.com>: I got the following patch from lttng dev -mailing list: -http://lists.casi.polymtl.ca/pipermail/ltt-dev/2011-February/003903.html -The patch looks good and I think it would be in next release. At present, -let's add it into SRC_URI. - ------------------------------------------------------------------ -The PPC version of the trace_clock_read64 was using the TB register -which is not constant accross implementations. The currently -measured time base on PPC was not accurate. -So, for now, we rely on the CLOCK_MONOTONIC. - -This patch remove a bunch of #ifdef for x86 and PPC, since we now rely on -the same base clock. It also fix the build on PPC that was currently broken - -Signed-off-by: Yannick Brosseau <yannick.brosseau@gmail.com> ------------------------------------------------------------------ - ---- a/include/ust/clock.h -+++ b/include/ust/clock.h -@@ -39,7 +39,6 @@ - precision and monotonicity. - */ - --#if __i386__ || __x86_64__ - /* Only available for x86 arch */ - #define CLOCK_TRACE_FREQ 14 - #define CLOCK_TRACE 15 -@@ -47,36 +46,10 @@ - struct timespec ts; - u64 lttng_ts; - }; --#endif /* __i386__ || __x86_64__ */ - - extern int ust_clock_source; - - /* Choosing correct trace clock */ --#if __PPC__ --static __inline__ u64 trace_clock_read64(void) --{ -- unsigned long tb_l; -- unsigned long tb_h; -- unsigned long tb_h2; -- u64 tb; -- -- __asm__ ( -- "1:\n\t" -- "mftbu %[rhigh]\n\t" -- "mftb %[rlow]\n\t" -- "mftbu %[rhigh2]\n\t" -- "cmpw %[rhigh],%[rhigh2]\n\t" -- "bne 1b\n\t" -- : [rhigh] "=r" (tb_h), [rhigh2] "=r" (tb_h2), [rlow] "=r" (tb_l)); -- -- tb = tb_h; -- tb <<= 32; -- tb |= tb_l; -- -- return tb; --} -- --#else /* !__PPC__ */ - - static __inline__ u64 trace_clock_read64(void) - { -@@ -101,17 +74,17 @@ - return retval; - } - --#endif /* __PPC__ */ -- - static __inline__ u64 trace_clock_frequency(void) - { - struct timespec ts; - union lttng_timespec *lts = (union lttng_timespec *) &ts; - -+#if __i386__ || __x86_64__ - if (likely(ust_clock_source == CLOCK_TRACE)) { - clock_gettime(CLOCK_TRACE_FREQ, &ts); - return lts->lttng_ts; - } -+#endif - return 1000000000LL; - } - |