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um: add earlyprintk support

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User Mode Linux can also benefit from earlyprintk.  UML's earlyprintk
writes kernel messages directly to stdout.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Richard Weinberger 2011-05-24 17:13:01 -07:00 • committed by Linus Torvalds
parent 2525e70d49
commit d634f194d4
5 changed files with 50 additions and 0 deletions
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5
arch/um/os-Linux/util.c
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@ -139,3 +139,8 @@ void os_dump_core(void)
uml_abort();
}
void um_early_printk(const char *s, unsigned int n)
{
printf("%.*s", n, s);
}