I've just updated my toolchain to use GCC 6.1.0 and I notice that
constant C strings seem to be being placed automatically in PROGMEM,
rather than requiring the use of the PSTR macro as in the past. This
caused me some confusion because call such as printf("foo") started
printing garbage. Here's the proof:
printf(" ");
91e: 84 e7 ldi r24, 0x74 ; 116
920: 90 e0 ldi r25, 0x00 ; 0
922: 9f 93 push r25
924: 8f 93 push r24
926: 0e 94 04 17 call 0x2e08 ; 0x2e08 <printf>
74: 20 20 and r2, r0
76: 20 20 and r2, r0
78: 20 20 and r2, r0
7a: 20 20 and r2, r0
7c: 20 20 and r2, r0
7e: 00 21 and r16, r0
I haven't been able to find any mention of this change anywhere. Is
this a deliberate change in gcc behaviour, or a bug?
Thanks,
--
Alan Burlison
--
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