On 11/14/21 04:21, Simon Glass wrote:
At present there are Kconfig options for tracing, but sandbox uses plain #defines to set them. Correct this and make the tracing command default to enabled so that this is not needed.
Signed-off-by: Simon Glass sjg@chromium.org
cmd/Kconfig | 2 ++ doc/develop/trace.rst | 14 +++++++------- 2 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/cmd/Kconfig b/cmd/Kconfig index 5b30b13e438..fd8f0227c89 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -2350,6 +2350,8 @@ config CMD_LOG
config CMD_TRACE bool "trace - Support tracing of function calls and timing"
- depends on TRACE
- default y help Enables a command to control using of function tracing within U-Boot. This allows recording of call traces including timing
diff --git a/doc/develop/trace.rst b/doc/develop/trace.rst index 7776c484286..34bce5d4677 100644 --- a/doc/develop/trace.rst +++ b/doc/develop/trace.rst @@ -30,16 +30,16 @@ Sandbox is a build of U-Boot that can run under Linux so it is a convenient way of trying out tracing before you use it on your actual board. To do this, follow these steps:
-Add the following to include/configs/sandbox.h (if not already there) +Add the following to config/sandbox_defconfig (if not already there)
.. code-block:: c
- #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
- CONFIG_TRACE=y
- CONFIG_TRACE_BUFFER_SIZE=0x01000000
- CONFIG_TRACE_BUFFER_SIZE=0x01000000
This line is duplicate. And it is anyway the default value in lib/Kconfig:229. So both lines can be removed.
- CONFIG_TRACE_EARLY_SIZE=0x800000
Is the CONFIG_TRACE_EARLY default inadequate and should be changed?
- CONFIG_TRACE_EARLY=y
- CONFIG_TRACE_EARLY_ADDR=0x00100000
This is the default value. The line can be removed.
Best regards
Heinrich
Build sandbox U-Boot with tracing enabled: