• Ben Nizette's avatar
    avr32: Fix out-of-range rcalls in large kernels · 8d29b7b9
    Ben Nizette authored
    Replace handcoded rcall instructions with the call pseudo-instruction.
    For kernels too far over 1MB the rcall instruction can't reach and
    linking will fail.  We already call the final linker with --relax which
    converts call pseudo-instructions to the right things anyway.
    
    This fixes
    
    arch/avr32/kernel/built-in.o: In function `syscall_exit_work':
    (.ex.text+0x198): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `schedule' defined in .sched.text section in kernel/built-in.o
    arch/avr32/kernel/built-in.o: In function `fault_exit_work':
    (.ex.text+0x3b6): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `schedule' defined in .sched.text section in kernel/built-in.o
    
    But I'm still left with
    
    arch/avr32/kernel/built-in.o:(.fixup+0x2): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+45a
    arch/avr32/kernel/built-in.o:(.fixup+0x8): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+8ea
    arch/avr32/kernel/built-in.o:(.fixup+0xe): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+abe
    arch/avr32/kernel/built-in.o:(.fixup+0x14): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+ac8
    arch/avr32/kernel/built-in.o:(.fixup+0x1a): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+ad2
    arch/avr32/kernel/built-in.o:(.fixup+0x20): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+adc
    arch/avr32/kernel/built-in.o:(.fixup+0x26): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+ae6
    arch/avr32/kernel/built-in.o:(.fixup+0x2c): relocation truncated to fit: R_AVR32_22H_PCREL against `.text'+af0
    arch/avr32/kernel/built-in.o:(.fixup+0x32): additional relocation overflows omitted from the output
    
    These are caused by a similar problem with 'rjmp' instructions.
    Unfortunately, there's no easy fix for these at the moment since we
    don't have a arbitrary-range 'jmp' instruction similar to 'call'.
    Signed-off-by: default avatarBen Nizette <bn@niasdigital.com>
    Signed-off-by: default avatarHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
    8d29b7b9
syscall-stubs.S 2.05 KB