For tracing to work it has to be able to access the microsecond timer
without causing a recursive call to the function entry/exit handlers.
Add attributes to the relevant functions to support this.
Signed-off-by: Simon Glass <s...@chromium.org>
Signed-off-by: Simon Glass <s...@chromium.org>
---
Changes in v2: None
arch/arm/cpu/armv7/s5p-common/timer.c | 2 +-
arch/arm/include/asm/arch-exynos/cpu.h | 10 ++++++----
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/arch/arm/cpu/armv7/s5p-common/timer.c
b/arch/arm/cpu/armv7/s5p-common/timer.c
index 4adfaae..637593c 100644
--- a/arch/arm/cpu/armv7/s5p-common/timer.c
+++ b/arch/arm/cpu/armv7/s5p-common/timer.c
@@ -95,7 +95,7 @@ unsigned long get_timer(unsigned long base)
return time_ms - base;
}
-unsigned long timer_get_us(void)
+unsigned long __attribute__((no_instrument_function)) timer_get_us(void)
{
static unsigned long base_time_us;
diff --git a/arch/arm/include/asm/arch-exynos/cpu.h
b/arch/arm/include/asm/arch-exynos/cpu.h
index f76e489..6b1b54f 100644
--- a/arch/arm/include/asm/arch-exynos/cpu.h
+++ b/arch/arm/include/asm/arch-exynos/cpu.h
@@ -175,7 +175,7 @@ static inline char *s5p_get_cpu_name(void)
}
#define IS_SAMSUNG_TYPE(type, id) \
-static inline int cpu_is_##type(void) \
+static inline int __attribute__((no_instrument_function)) cpu_is_##type(void) \
{ \
return (s5p_cpu_id >> 12) == id; \
}
@@ -184,7 +184,8 @@ IS_SAMSUNG_TYPE(exynos4, 0x4)
IS_SAMSUNG_TYPE(exynos5, 0x5)
#define IS_EXYNOS_TYPE(type, id) \
-static inline int proid_is_##type(void) \
+static inline int __attribute__((no_instrument_function)) \
+ proid_is_##type(void) \
{ \
return s5p_cpu_id == id; \
}
@@ -194,9 +195,10 @@ IS_EXYNOS_TYPE(exynos4412, 0x4412)
IS_EXYNOS_TYPE(exynos5250, 0x5250)
#define SAMSUNG_BASE(device, base) \
-static inline unsigned int samsung_get_base_##device(void) \
+static inline unsigned int __attribute__((no_instrument_function)) \
+ samsung_get_base_##device(void) \
{ \
- if (cpu_is_exynos4()) { \
+ if (cpu_is_exynos4()) { \
if (proid_is_exynos4412()) \
return EXYNOS4X12_##base; \
return EXYNOS4_##base; \
--
1.8.3
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