[avr-libc-dev] [bug #32945] Wrong PF implementation in pmstring

[Pitchumani]

Follow-up Comment #4, bug #32945 (project avr-libc):

> comment #2
> I've changed the LPM_R0_ZPLUS_* macros in common/macros.inc to look for
_AVR_HAVE_ELPM_ instead of BIG_CODE. 
>My guess is that there are still problems because of finding the definition
of AVR_RAMPZ_ADDR. 

RAMPZ register address is defined based on RAMPZ macro in device header file.
Building library for specific arch will result in error as AVR_RAMPZ_ADDR is
not defined.

(include/avr/common.h)
284 #if defined(RAMPZ)
285 #  define AVR_RAMPZ_REG   RAMPZ
286 #  if __AVR_ARCH__ >= 100
287 #    define AVR_RAMPZ_ADDR  _SFR_MEM_ADDR(RAMPZ)
288 #  else
289 #    define AVR_RAMPZ_ADDR  _SFR_IO_ADDR(RAMPZ)
290 #  endif
291 #endif

It is possible to hard-code RAMPZ register address irrespective of device
header file (gcc also hard-codes RAMPZ address) as follows:

+#  define AVR_RAMPZ_REG   (_SFR_IO8(0x3b))
+#  define AVR_RAMPZ_ADDR  (_SFR_IO8(0x3b))

This will enable building library for a architecture than a device.
--
This fix shall be included until we have per device library build system -
Joerg Wunsch
(http://lists.nongnu.org/archive/html/avr-libc-dev/2013-10/msg00002.html)


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