[PATCH 02/15] ARM: etm: Don't limit tracing to only non-secure code.

John Stultz
2012-06-20T22:48:17Z

From: Arve Hjønnevåg <arve@android.com>

On some systems kernel code is considered secure, and this code
already limits tracing to the kernel text segment which results
in no trace data.

CC: Russell King <linux@arm.linux.org.uk>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
arch/arm/kernel/etm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c
index bd295e8..d7622f9 100644
--- a/arch/arm/kernel/etm.c
+++ b/arch/arm/kernel/etm.c
@@ -56,7 +56,7 @@ static inline bool trace_isrunning(struct tracectx *t)
static int etm_setup_address_range(struct tracectx *t, int n,
unsigned long start, unsigned long end, int exclude, int data)
{
- u32 flags = ETMAAT_ARM | ETMAAT_IGNCONTEXTID | ETMAAT_NSONLY | \
+ u32 flags = ETMAAT_ARM | ETMAAT_IGNCONTEXTID | ETMAAT_IGNSECURITY |
ETMAAT_NOVALCMP;

if (n < 1 || n > t->ncmppairs)
--
1.7.9.5