http://gcc.gnu.org/ml/gcc-patches/2011-06/msg01462.html
Georg-Johann Lay wrote: > PR34734 produces annoying, false warnings if __attribute__((progmem)) > is used in conjunction with C++. DECL_INITIAL is not yet set up in > avr_handle_progmem_attribute. > > Johann > > PR target/34734 > * config/avr/avr.c (avr_handle_progmem_attribute): Move warning > about uninitialized data attributed 'progmem' from here... > (avr_encode_section_info): ...to this new function. > (TARGET_ENCODE_SECTION_INFO): New define. > (avr_section_type_flags): For data in ".progmem.data", remove > section flag SECTION_WRITE. avr_encode_section_info is good place to emit the warning: DECL_INITIAL has stabilized for C++, the warning will appear even for unused variables that will eventually be thrown away, and the warning appears only once (new_decl_p). Johann
