[U-Boot] [PATCH v2 12/21] sandbox: Support trace feature
Simon Glass
sjg at chromium.org
Tue Jun 11 20:14:44 CEST 2013
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 at 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
--
1.8.3
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