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* config/bfin/bfin.opt (mfdpic): New option. * config/bfin/t-bfin-elf (EXTRA_PARTS): Add crtbeginS.o and crtendS.o. (EXTRA_MULTILIB_PARTS): Likewise. (CRTSTUFF_T_CFLAGS, TARGET_LIBGCC2_CFLAGS): Use -fpic. (MULTILIB_OPTIONS, MULTILIB_EXCEPTIONS): Build one extra -mfdpic multilib. * config/bfin/elf.h (STARTFILE_SPEC): Don't link in crt0.o if -shared. (CRT_CALL_STATIC_FUNCTION): New. * config/bfin/uclinux.h (STARTFILE_SPEC): Don't link in crt0.o if -shared. (CRT_CALL_STATIC_FUNCTION): New. * config/bfin/bfin.c (legitimize_pic_address): Now static. Handle FD-PIC moves. (n_pregs_to_save): PIC register doesn't need to be saved with FD-PIC. (print_operand): Handle UNSPEC_MOVE_FDPIC and UNSPEC_FUNCDESC_GOT17M4. (initialize_trampoline): Changed to handle FD-PIC code generation. (expand_move): If TARGET_FDPIC, use emit_pic_move as needed. (bfin_expand_call): Generate FD-PIC calls if TARGET_FDPIC. (override_options): Disallow -mid-shared-library -mfdpic combination. Can't do unaligned ops if FD-PIC. Turn off flag_pic if trying to generate non-id-shared-library non-fdpic code, since it's not supported. (bfin_assemble_integer): New function. (TARGET_ASM_INTEGER): Define. * config/bfin/crti.s (__init, __fini): Save P3 on the stack if __BFIN_FDPIC__. * config/bfin/crtn.s: Restore them. * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __BFIN_FDPIC__ if TARGET_FDPIC. (DRIVER_SELF_SPECS, SUBTARGET_DRIVER_SELF_SPECS, LINK_GCC_C_SEQUENCE_SPEC, ASM_SPEC, LINK_SPEC): New macros. (FDPIC_FPTR_REGNO, FDPIC_REGNO, OUR_FDPIC_REG): New macros. (TRAMPOLINE_SIZE, TRAMPOLINE_TEMPLATE): Adjust for FD-PIC. (CONDITIONAL_REGISTER_USAGE): If TARGET_FDPIC, FDPIC_REGNO is call-used. (enum reg_class, REG_CLASS_CONTENTS, REG_CLASS_NAMES): Add FDPIC_REGS and FDPIC_FPTR_REGS. (REG_CLASS_FROM_LETTER): Use 'Z' and 'Y' for them. * config/bfin/bfin.md (UNSPEC_MOVE_FDPIC, UNSPEC_FUNCDESC_GOT17M4, UNSPEC_VOLATILE_LOAD_FUNCDESC): New constants. (load_funcdescsi): New pattern. (call_symbol_fdpic, sibcall_symbol_fdpic, call_value_symbol_fdpic, sibcall_value_symbol_fdpic, call_insn_fdpic, sibcall_insn_fdpic, call_value_insn_fdpic, sibcall_value_insn_fdpic): New patterns. From-SVN: r114199
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