Randall Spangler 7f5019c9e3 Reduce stack space used by vfnprintf() ...

Converting some of the boolean variables in vfnprintf() to a single
flags word reduces stack usage by 8 bytes and function size by 12
bytes.  So it's slightly more efficient in both respects.

Confirmed size and stack usage improvements via 'make BOARD=rambi all
dis' and looking at the disassembly for vfnprintf()

BUG=chrome-os-partner:24148
BRANCH=none
TEST=Run taskinfo command twice and compare stack used by CONSOLE task.
     Run timerinfo and charger commands and verify output looks reasonable;
     those exercise binary and 64-bit number printing.

Change-Id: Ie4396bb0bc01dc155956fa2d8ca84c6630006729
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177400
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>

2013-11-20 18:43:56 +00:00

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