* config/tc-xtensa.c (xg_apply_tentative_value): Rename to
xg_apply_fix_value and return a value to indicate success.
(md_pcrel_from): Skip check of fx_done. Return 0 if not PC-relative.
(xtensa_force_relocation): Remove checks for VTABLE relocs.
(xtensa_validate_fix_sub): New.
(xtensa_fix_adjustable): Remove check for external or weak symbols.
(tc_gen_reloc): Move code to handle difference of symbols and code to
apply tentative fix values to ...
(md_apply_fix3): ...here. Enable standard overflow checks for simple
8, 16, and 32 bit relocations. Apply fixes for slot-specific
relocations when linkrelax flag is not set.
* config/tc-xtensa.h (xtensa_validate_fix_sub): Add prototype.
(TC_FORCE_RELOCATION_SUB_SAME, TC_VALIDATE_FIX_SUB): Define.