[PATCH 0/2] sandbox: error output

U-Boot's printf() cannot write to the console before the serial console driver is set up. We need a function writing to the OS console.

Provide a new function os_printf() to print to the OS console.

Use the funciton to implement the error messages related to loading the device-tree.

For sure there are more places where we need os_printf() instead of printf() for error messages.

We also could use it to provide a debug console for the sandbox.

Heinrich Schuchardt (2): sandbox: add function os_printf() sandbox: show error if the device-tree cannot be loaded

arch/sandbox/cpu/cpu.c | 8 ++++---- arch/sandbox/cpu/os.c | 13 +++++++++++++ include/os.h | 7 +++++++ 3 files changed, 24 insertions(+), 4 deletions(-)