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Add support for accessing printf, sprintf, puts, etc. strings that do not lie in the MCU data space

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3738 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
2011-07-01 19:08:04 +00:00
parent 7ce352ca5c
commit e6c8a184b9
13 changed files with 316 additions and 73 deletions
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@@ -1839,5 +1839,13 @@
and was, therefore, off by one, and (2) Some devices stall of get Max LUN request
if they support only a single LUN. Logic now assumes a single LUN if the get
Max LUN request fails.
* include/nuttx/arch.h, lib/stdio/lib_libvsprintf.c, lib/stdio/lib_fputs.c: Add
a new configuration option to support extracting strings from FLASH or EEPROM
or other memories where the string data cannot be accessed by simply de-referencing
a string pointer.
* arch/sim/src/up_romgetc.c: Used to test the basic logic to access strings
without directly de-referencing a string pointer.
* arch/avr/src/avr/up_romget.c: Used to access strings that lie in the first
64Kb of FLASH.