Follow-up Comment #2, bug #19050 (project avr-libc):
In oficial GCC 4.x main() do not converted to a normal function. 'atmega256'
patch does it.
For fast correction of a bug it is necessary to restore special handling of
main() funcion in 'patch-zz-atmega256x' patch.
These changes should be reverted:
- if (main_p)
- {
- fprintf (file, ("\t"
- AS1 (ldi,r28) ",lo8(%s - " HOST_WIDE_INT_PRINT_DEC ")"
CR_TAB
- AS1 (ldi,r29) ",hi8(%s - " HOST_WIDE_INT_PRINT_DEC ")"
CR_TAB
- AS2 (out,__SP_H__,r29) CR_TAB
- AS2 (out,__SP_L__,r28) "\n"),
- avr_init_stack, size, avr_init_stack, size);
-
- prologue_size += 4;
- }
- else if (minimize && (frame_pointer_needed || live_seq > 6))
+ if (minimize && (frame_pointer_needed || live_seq > 6))
and:
- if (main_p)
- {
- /* Return value from main() is already in the correct registers
- (r25:r24) as the exit() argument. */
- if (AVR_MEGA)
- {
- fputs ("\t" AS1 (jmp,exit) "\n", file);
- epilogue_size += 2;
- }
- else
- {
- fputs ("\t" AS1 (rjmp,exit) "\n", file);
- ++epilogue_size;
- }
- }
- else if (minimize && (frame_pointer_needed || live_seq > 4))
+ if (minimize && (frame_pointer_needed || live_seq > 4))
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