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sandbox: Allow the console to work earlier

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With sandbox, errors and problems may be reported before console_init_f()
is executed. For example, an argument may not parse correctly or U-Boot may
panic(). At present this output is swallowed so there is no indication what
is going wrong.

Adjust the console to deal with a very early sandbox setup, by detecting that
there is no global_data yet, and calling os functions in that case.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2013-11-10 10:27:01 -07:00
parent 88bd0e9d15
commit 91b136c798
3 changed files with 46 additions and 1 deletions
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20
include/os.h
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@@ -209,4 +209,24 @@ const char *os_dirent_get_typename(enum os_dirent_t type);
*/
ssize_t os_get_filesize(const char *fname);
/**
* Write a character to the controlling OS terminal
*
* This bypasses the U-Boot console support and writes directly to the OS
* stdout file descriptor.
*
* @param ch Character to write
*/
void os_putc(int ch);
/**
* Write a string to the controlling OS terminal
*
* This bypasses the U-Boot console support and writes directly to the OS
* stdout file descriptor.
*
* @param str String to write (note that \n is not appended)
*/
void os_puts(const char *str);
#endif