Follow-up Comment #7, patch #6352 (project avr-libc): The _PF functions in the respective binary libraries are broken, and they ever were, since the've been added to avr-libc in 1.7.0.
They don't use the ELPM instruction rather, incorrectly, the LPM instruction. The reason is, that these functions rely on LPM_R0_ZPLUS_NEXT macro in common/macros.inc, which uses the BIG_CODE macro defined in the same file to determine whether LPM or ELPM is appropriate. BIG_CODE is defined according to FLASHEND macro which comes from the individual files' headers (additionally, the RAMPZ register's address might be needed for some of the files). However, these files are compiled with the "generic" -mavrN switch, so the FLASHEND macro is unavailable thus considered zero by preprocessor. This bug was originally reported here http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=110170 _______________________________________________________ Reply to this item at: <http://savannah.nongnu.org/patch/?6352> _______________________________________________ Message sent via/by Savannah http://savannah.nongnu.org/ _______________________________________________ AVR-libc-dev mailing list AVR-libc-dev@nongnu.org https://lists.nongnu.org/mailman/listinfo/avr-libc-dev
