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If task_get_current() is called early during initialization when we have not yet done a context switch, our current_task pointer is invalid. Add an assert to detect this case and put it behind CONFIG_DEBUG_BRINGUP, a new config that's intended to enable possibly-costly pre-production debugging. BUG=chrome-os-partner:40677 TEST=Manual on glados. Define CONFIG_DEBUG_BRINGUP, then call i2c_write from board_init and verify the new assert fails. Remove the i2c_write and verify the new assert passes. BRANCH=None Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Change-Id: I6014ccf739dcc4c8f4f960be2b89f01e423b65b5 Reviewed-on: https://chromium-review.googlesource.com/273541 Reviewed-by: Randall Spangler <rspangler@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit