Matt Harvey 05becc9125 Loop in UART driver rx_watermark until rx_empty
If rx_buf filled during the handling of an rx_watermark with the FIFO
nonempty, the rx_watermark would be acknowledged, and there would be no
subsequent interrupt to post to the semaphore blocking the next receive.
(Non-rate-limited ZMODEM uploads easily caused this condition.)

This change ensures each handling of an rx_watermark interrupt
completely empties the FIFO. It is likely stopgap until the simulated
UART can provide an rx_timeout interrupt.

Change-Id: If828bac470ee0e667e0e011b11a7a9aee1d47210
GitOrigin-RevId: 7123bcb0fcca9e39c35f4b67088b581cdf2fb50d
2022-10-06 18:34:30 +00:00
2022-10-06 18:34:04 +00:00

Kata OS

This is a CAmkES project that assembles the entire Kata OS. It exists outside the seL4 source trees, since it contains code not intended to go to upstream seL4.

This uses the standard CAmkES build system by symlinking CMakeLists.txt. It also symlinks settings.cmake, and so retains the notion of "apps," which enables the build system to switch which assembly it builds using the CAMKES_APP CMake cache value. Kata OS just has one app, system.

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