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Grissiom 7b0a3afdf9 kservice: export vsnprintf as rt_vsnprintf

vsnprintf is a common string function that could be used in many places.
Using both vsnprintf in libc and vsnprintf in the RTT could make a
bigger image. Moreover, if newlib is not enabled when compiling with
GCC, referencing vsnprintf will lead to link error:

    .../arm-none-eabi/lib/armv7-ar/thumb/softfp/libc.a(lib_a-sbrkr.o):
    In function `_sbrk_r':
    sbrkr.c:(.text._sbrk_r+0xc): undefined reference to `_sbrk'
    collect2: error: ld returned 1 exit status

Using rt_vsnprintf could avoid such problem.

2013-09-23 11:34:13 +08:00

bsp

use UART0 as console

2013-09-21 17:18:45 +08:00

components

finsh: unregister rx_indicate when closing the device

2013-09-22 22:12:04 +08:00

documentation

change the version number in doxyfile

2013-04-10 21:51:00 +08:00

examples

fixed a syntax error