Support tracing on sandbox by adding suitable CONFIG options. To enable it, compile U-Boot with FTRACE=1.
The timer functions are marked to skip tracing, since these are called from the tracing code itself, and we want to avoid an infinite loop.
Signed-off-by: Simon Glass sjg@chromium.org --- Changes in v2: None
arch/sandbox/cpu/cpu.c | 2 +- arch/sandbox/cpu/os.c | 2 +- include/configs/sandbox.h | 13 +++++++++++++ 3 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/arch/sandbox/cpu/cpu.c b/arch/sandbox/cpu/cpu.c index dd8d495..e9385de 100644 --- a/arch/sandbox/cpu/cpu.c +++ b/arch/sandbox/cpu/cpu.c @@ -37,7 +37,7 @@ void __udelay(unsigned long usec) os_usleep(usec); }
-unsigned long timer_get_us(void) +unsigned long __attribute__((no_instrument_function)) timer_get_us(void) { return os_get_nsec() / 1000; } diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c index d075407..541e450 100644 --- a/arch/sandbox/cpu/os.c +++ b/arch/sandbox/cpu/os.c @@ -152,7 +152,7 @@ void os_usleep(unsigned long usec) usleep(usec); }
-u64 os_get_nsec(void) +u64 __attribute__((no_instrument_function)) os_get_nsec(void) { #if defined(CLOCK_MONOTONIC) && defined(_POSIX_MONOTONIC_CLOCK) struct timespec tp; diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h index 788207d..d704329 100644 --- a/include/configs/sandbox.h +++ b/include/configs/sandbox.h @@ -22,6 +22,19 @@ #ifndef __CONFIG_H #define __CONFIG_H
+#ifdef FTRACE +#define CONFIG_TRACE +#define CONFIG_CMD_TRACE +#define CONFIG_TRACE_BUFFER_SIZE (16 << 20) +#define CONFIG_TRACE_EARLY_SIZE (8 << 20) +#define CONFIG_TRACE_EARLY +#define CONFIG_TRACE_EARLY_ADDR 0x00100000 + +#endif + +#define CONFIG_BOOTSTAGE +#define CONFIG_BOOTSTAGE_REPORT + /* Number of bits in a C 'long' on this architecture */ #define CONFIG_SANDBOX_BITS_PER_LONG 64