Hi,
I ran into a weird situation regarding whether I compile and link the
code in one go or in two phases.
main.c:
int main() {
asm("out 0x14, r24");
while (1) {
asm("out 0x16, r24");
}
}
When I run:
avr-gcc -O main.c -o main_one.hex -mmcu=attiny2313 -Wl,--oformat,ihex
I get a different result compared to:
avr-gcc -O main.c -o main_two.elf -mmcu=attiny2313
avr-ld -o main_two.elf.hex --oformat ihex main_two.elf
$ avr-objdump -j .sec1 -d -m avr main_two.elf.hex
38: fe cf rjmp .-4 ; 0x36
It calculates the jump correctly.
But the former one seems to introduce a 2-off bug when calculating the
rjmps' offset:
$ avr-objdump -j .sec1 -d -m avr main_one.hex
38: ff cf rjmp .-2 ; 0x38
The same goes for every rjmp.
Is this a legit bug, or I am missing something?
gcc-avr(1:5.4.0+Atmel3.6.2-1)
binutils-avr(2.26.20160125+Atmel3.6.2-2)
Br,
Tibor
