How does Fiasco implement printf

[Wei Jin]

Have a look at these codes:
drivers/libc_backend.h
drivers/glue_libc.cc
drivers/console.cpp
drivers/uart.cpp
lib/vprintf.c


On Sat, Jun 21, 2014 at 5:11 AM, Yuxin Ren <ryx at gwmail.gwu.edu> wrote:

> Hi,
>
> I think printf usually invoke system call. But in Fiasco only one system
> call is capability invocation. So what capability is invoked by printf? Or
> Fiasco implements printf in user level, so printf triggers a normal IPC?
>
> Thank you.
> Best
>
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