libobjc2 relocation issue in aarch64

[Jordan Schidlowsky]

I can't seem to get libobjc2 to link in properly to my android app on arm64-v8a.  I'm using the latest clang prebuilt by Frederik here: https://github.com/gnustep/tools-android    

I've tried 3 different linkers, and all report the same R_AARCH64_ADR_PREL_LO21 issue.  bfd was the only linker to provide any insight, but it seems like it's related to the SmallObjectClasses symbol.   Output from each linker is below:

gold:

libs/libobjc2/objc_msgSend.aarch64.S:97: error: relocation overflow in R_AARCH64_ADR_PREL_LO21

lld:

ld.lld: error: ../../../../libs/libobjc2/objc_msgSend.aarch64.S:97:(.text+0xD0): relocation R_AARCH64_ADR_PREL_LO21 out of range: 16077624 is not in [-1048576, 1048575]

bfd:

libs/libobjc2/libobjc.a(objc_msgSend.S.o): In function `objc_msgSend_stret': libs/libobjc2/objc_msgSend.aarch64.S:97:(.text+0xd0): relocation truncated to fit: R_AARCH64_ADR_PREL_LO21 against symbol `SmallObjectClasses' defined in COMMON section in libs/libobjc2/libobjc.a(class_table.c.o)

Any thoughts?

-Jordan