[Bug ld/22764] [2.30 Regression] ld fails to link 4.13 and 4.15 kernels on aarch64-linux-gnu

[arnd at arndb dot de]

https://sourceware.org/bugzilla/show_bug.cgi?id=22764

Arnd Bergmann <arnd at arndb dot de> changed:

           What    |Removed                     |Added
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                 CC|                            |arnd at arndb dot de

--- Comment #11 from Arnd Bergmann <arnd at arndb dot de> ---
I did some more testing with binutils-2.30 on arm64 randconfig kernels. One
major issue I came across was CONFIG_MODVERSIONS, which causes an error for
each exported symbol.

aarch64-linux-ld: init/main.o: relocation R_AARCH64_ABS32 against
`__crc_system_state' can not be used when making a shared object
aarch64-linux-ld: init/version.o: relocation R_AARCH64_ABS32 against
`__crc_init_uts_ns' can not be used when making a shared object
aarch64-linux-ld: init/do_mounts.o: relocation R_AARCH64_ABS32 against
`__crc_name_to_dev_t' can not be used when making a shared object
aarch64-linux-ld: init/init_task.o: relocation R_AARCH64_ABS32 against
`__crc_init_task' can not be used when making a shared object
aarch64-linux-ld: arch/arm64/kernel/fpsimd.o: relocation R_AARCH64_ABS32
against `__crc_kernel_neon_busy' can not be used when making a shared object
aarch64-linux-ld: arch/arm64/kernel/process.o: relocation R_AARCH64_ABS32
against `__crc___stack_chk_guard' can not be used when making a shared object
aarch64-linux-ld: arch/arm64/kernel/stacktrace.o: relocation R_AARCH64_ABS32
against `__crc_save_stack_trace_tsk' can not be used when making a shared
object


While changing one of the .S files, I also ran into a linker crash:

 aarch64-linux-ld: arch/arm64/kernel/head.o: relocation R_AARCH64_ABS32 against
`__rela_offset' can not be used when making a shared object
11:39 PM cross-gcc/bin/aarch64-linux-ld: BFD (GNU Binutils) 2.30 internal
error, aborting at /home/arnd/git/binutils/bfd/elfnn-aarch64.c:5279 in
elf64_aarch64_final_link_relocate
11:40 PM aarch64-linux-ld: Please report this bug.

This evidently was caused by the same two instructions that came up earlier:

       ldr     w9, =__rela_offset              // offset to reloc table
       ldr     w10, =__rela_size               // size of reloc table

After commenting these out, I got no further crashes.

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