mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-12-05 02:47:05 +00:00
43cd72b9aa
* elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
1742 lines
43 KiB
C
1742 lines
43 KiB
C
/* Configurable Xtensa ISA support.
|
||
Copyright 2003, 2004 Free Software Foundation, Inc.
|
||
|
||
This file is part of BFD, the Binary File Descriptor library.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
|
||
#include "bfd.h"
|
||
#include "sysdep.h"
|
||
#include "libbfd.h"
|
||
#include "xtensa-isa.h"
|
||
#include "xtensa-isa-internal.h"
|
||
|
||
xtensa_isa_status xtisa_errno;
|
||
char xtisa_error_msg[1024];
|
||
|
||
|
||
xtensa_isa_status
|
||
xtensa_isa_errno (xtensa_isa isa __attribute__ ((unused)))
|
||
{
|
||
return xtisa_errno;
|
||
}
|
||
|
||
|
||
char *
|
||
xtensa_isa_error_msg (xtensa_isa isa __attribute__ ((unused)))
|
||
{
|
||
return xtisa_error_msg;
|
||
}
|
||
|
||
|
||
#define CHECK_ALLOC(MEM,ERRVAL) \
|
||
do { \
|
||
if ((MEM) == 0) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_out_of_memory; \
|
||
strcpy (xtisa_error_msg, "out of memory"); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
#define CHECK_ALLOC_FOR_INIT(MEM,ERRVAL,ERRNO_P,ERROR_MSG_P) \
|
||
do { \
|
||
if ((MEM) == 0) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_out_of_memory; \
|
||
strcpy (xtisa_error_msg, "out of memory"); \
|
||
if (ERRNO_P) *(ERRNO_P) = xtisa_errno; \
|
||
if (ERROR_MSG_P) *(ERROR_MSG_P) = xtisa_error_msg; \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
/* Instruction buffers. */
|
||
|
||
int
|
||
xtensa_insnbuf_size (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return intisa->insnbuf_size;
|
||
}
|
||
|
||
|
||
xtensa_insnbuf
|
||
xtensa_insnbuf_alloc (xtensa_isa isa)
|
||
{
|
||
xtensa_insnbuf result = (xtensa_insnbuf)
|
||
malloc (xtensa_insnbuf_size (isa) * sizeof (xtensa_insnbuf_word));
|
||
CHECK_ALLOC (result, 0);
|
||
return result;
|
||
}
|
||
|
||
|
||
void
|
||
xtensa_insnbuf_free (xtensa_isa isa __attribute__ ((unused)),
|
||
xtensa_insnbuf buf)
|
||
{
|
||
free (buf);
|
||
}
|
||
|
||
|
||
/* Given <byte_index>, the index of a byte in a xtensa_insnbuf, our
|
||
internal representation of a xtensa instruction word, return the index of
|
||
its word and the bit index of its low order byte in the xtensa_insnbuf. */
|
||
|
||
static inline int
|
||
byte_to_word_index (int byte_index)
|
||
{
|
||
return byte_index / sizeof (xtensa_insnbuf_word);
|
||
}
|
||
|
||
|
||
static inline int
|
||
byte_to_bit_index (int byte_index)
|
||
{
|
||
return (byte_index & 0x3) * 8;
|
||
}
|
||
|
||
|
||
/* Copy an instruction in the 32-bit words pointed at by "insn" to
|
||
characters pointed at by "cp". This is more complicated than you
|
||
might think because we want 16-bit instructions in bytes 2 & 3 for
|
||
big-endian configurations. This function allows us to specify
|
||
which byte in "insn" to start with and which way to increment,
|
||
allowing trivial implementation for both big- and little-endian
|
||
configurations....and it seems to make pretty good code for
|
||
both. */
|
||
|
||
int
|
||
xtensa_insnbuf_to_chars (xtensa_isa isa, const xtensa_insnbuf insn, char *cp,
|
||
int num_chars)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int insn_size = xtensa_isa_maxlength (isa);
|
||
int fence_post, start, increment, i, byte_count;
|
||
xtensa_format fmt;
|
||
|
||
if (num_chars == 0)
|
||
num_chars = insn_size;
|
||
|
||
if (intisa->is_big_endian)
|
||
{
|
||
start = insn_size - 1;
|
||
increment = -1;
|
||
}
|
||
else
|
||
{
|
||
start = 0;
|
||
increment = 1;
|
||
}
|
||
|
||
/* Find the instruction format. Do nothing if the buffer does not contain
|
||
a valid instruction since we need to know how many bytes to copy. */
|
||
fmt = xtensa_format_decode (isa, insn);
|
||
if (fmt == XTENSA_UNDEFINED)
|
||
return XTENSA_UNDEFINED;
|
||
|
||
byte_count = xtensa_format_length (isa, fmt);
|
||
if (byte_count == XTENSA_UNDEFINED)
|
||
return XTENSA_UNDEFINED;
|
||
|
||
if (byte_count > num_chars)
|
||
{
|
||
xtisa_errno = xtensa_isa_buffer_overflow;
|
||
strcpy (xtisa_error_msg, "output buffer too small for instruction");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
fence_post = start + (byte_count * increment);
|
||
|
||
for (i = start; i != fence_post; i += increment, ++cp)
|
||
{
|
||
int word_inx = byte_to_word_index (i);
|
||
int bit_inx = byte_to_bit_index (i);
|
||
|
||
*cp = (insn[word_inx] >> bit_inx) & 0xff;
|
||
}
|
||
|
||
return byte_count;
|
||
}
|
||
|
||
|
||
/* Inward conversion from byte stream to xtensa_insnbuf. See
|
||
xtensa_insnbuf_to_chars for a discussion of why this is complicated
|
||
by endianness. */
|
||
|
||
void
|
||
xtensa_insnbuf_from_chars (xtensa_isa isa, xtensa_insnbuf insn, const char *cp,
|
||
int num_chars)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int max_size, insn_size, fence_post, start, increment, i;
|
||
|
||
max_size = xtensa_isa_maxlength (isa);
|
||
|
||
/* Decode the instruction length so we know how many bytes to read. */
|
||
insn_size = (intisa->length_decode_fn) (cp);
|
||
if (insn_size == XTENSA_UNDEFINED)
|
||
{
|
||
/* This should never happen when the byte stream contains a
|
||
valid instruction. Just read the maximum number of bytes.... */
|
||
insn_size = max_size;
|
||
}
|
||
|
||
if (num_chars == 0 || num_chars > insn_size)
|
||
num_chars = insn_size;
|
||
|
||
if (intisa->is_big_endian)
|
||
{
|
||
start = max_size - 1;
|
||
increment = -1;
|
||
}
|
||
else
|
||
{
|
||
start = 0;
|
||
increment = 1;
|
||
}
|
||
|
||
fence_post = start + (num_chars * increment);
|
||
memset (insn, 0, xtensa_insnbuf_size (isa) * sizeof (xtensa_insnbuf_word));
|
||
|
||
for (i = start; i != fence_post; i += increment, ++cp)
|
||
{
|
||
int word_inx = byte_to_word_index (i);
|
||
int bit_inx = byte_to_bit_index (i);
|
||
|
||
insn[word_inx] |= (*cp & 0xff) << bit_inx;
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/* ISA information. */
|
||
|
||
extern xtensa_isa_internal xtensa_modules;
|
||
|
||
xtensa_isa
|
||
xtensa_isa_init (xtensa_isa_status *errno_p, char **error_msg_p)
|
||
{
|
||
xtensa_isa_internal *isa = &xtensa_modules;
|
||
int n, is_user;
|
||
|
||
/* Set up the opcode name lookup table. */
|
||
isa->opname_lookup_table =
|
||
bfd_malloc (isa->num_opcodes * sizeof (xtensa_lookup_entry));
|
||
CHECK_ALLOC_FOR_INIT (isa->opname_lookup_table, NULL, errno_p, error_msg_p);
|
||
for (n = 0; n < isa->num_opcodes; n++)
|
||
{
|
||
isa->opname_lookup_table[n].key = isa->opcodes[n].name;
|
||
isa->opname_lookup_table[n].u.opcode = n;
|
||
}
|
||
qsort (isa->opname_lookup_table, isa->num_opcodes,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
/* Set up the state name lookup table. */
|
||
isa->state_lookup_table =
|
||
bfd_malloc (isa->num_states * sizeof (xtensa_lookup_entry));
|
||
CHECK_ALLOC_FOR_INIT (isa->state_lookup_table, NULL, errno_p, error_msg_p);
|
||
for (n = 0; n < isa->num_states; n++)
|
||
{
|
||
isa->state_lookup_table[n].key = isa->states[n].name;
|
||
isa->state_lookup_table[n].u.state = n;
|
||
}
|
||
qsort (isa->state_lookup_table, isa->num_states,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
/* Set up the sysreg name lookup table. */
|
||
isa->sysreg_lookup_table =
|
||
bfd_malloc (isa->num_sysregs * sizeof (xtensa_lookup_entry));
|
||
CHECK_ALLOC_FOR_INIT (isa->sysreg_lookup_table, NULL, errno_p, error_msg_p);
|
||
for (n = 0; n < isa->num_sysregs; n++)
|
||
{
|
||
isa->sysreg_lookup_table[n].key = isa->sysregs[n].name;
|
||
isa->sysreg_lookup_table[n].u.sysreg = n;
|
||
}
|
||
qsort (isa->sysreg_lookup_table, isa->num_sysregs,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
/* Set up the user & system sysreg number tables. */
|
||
for (is_user = 0; is_user < 2; is_user++)
|
||
{
|
||
isa->sysreg_table[is_user] =
|
||
bfd_malloc ((isa->max_sysreg_num[is_user] + 1)
|
||
* sizeof (xtensa_sysreg));
|
||
CHECK_ALLOC_FOR_INIT (isa->sysreg_table[is_user], NULL,
|
||
errno_p, error_msg_p);
|
||
|
||
for (n = 0; n <= isa->max_sysreg_num[is_user]; n++)
|
||
isa->sysreg_table[is_user][n] = XTENSA_UNDEFINED;
|
||
}
|
||
for (n = 0; n < isa->num_sysregs; n++)
|
||
{
|
||
xtensa_sysreg_internal *sreg = &isa->sysregs[n];
|
||
is_user = sreg->is_user;
|
||
|
||
isa->sysreg_table[is_user][sreg->number] = n;
|
||
}
|
||
|
||
/* Set up the interface lookup table. */
|
||
isa->interface_lookup_table =
|
||
bfd_malloc (isa->num_interfaces * sizeof (xtensa_lookup_entry));
|
||
CHECK_ALLOC_FOR_INIT (isa->interface_lookup_table, NULL, errno_p,
|
||
error_msg_p);
|
||
for (n = 0; n < isa->num_interfaces; n++)
|
||
{
|
||
isa->interface_lookup_table[n].key = isa->interfaces[n].name;
|
||
isa->interface_lookup_table[n].u.intf = n;
|
||
}
|
||
qsort (isa->interface_lookup_table, isa->num_interfaces,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
/* Set up the funcUnit lookup table. */
|
||
isa->funcUnit_lookup_table =
|
||
bfd_malloc (isa->num_funcUnits * sizeof (xtensa_lookup_entry));
|
||
CHECK_ALLOC_FOR_INIT (isa->funcUnit_lookup_table, NULL, errno_p,
|
||
error_msg_p);
|
||
for (n = 0; n < isa->num_funcUnits; n++)
|
||
{
|
||
isa->funcUnit_lookup_table[n].key = isa->funcUnits[n].name;
|
||
isa->funcUnit_lookup_table[n].u.fun = n;
|
||
}
|
||
qsort (isa->funcUnit_lookup_table, isa->num_funcUnits,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
isa->insnbuf_size = ((isa->insn_size + sizeof (xtensa_insnbuf_word) - 1) /
|
||
sizeof (xtensa_insnbuf_word));
|
||
|
||
return (xtensa_isa) isa;
|
||
}
|
||
|
||
|
||
void
|
||
xtensa_isa_free (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int n;
|
||
|
||
/* With this version of the code, the xtensa_isa structure is not
|
||
dynamically allocated, so this function is not essential. Free
|
||
the memory allocated by xtensa_isa_init and restore the xtensa_isa
|
||
structure to its initial state. */
|
||
|
||
if (intisa->opname_lookup_table)
|
||
{
|
||
free (intisa->opname_lookup_table);
|
||
intisa->opname_lookup_table = 0;
|
||
}
|
||
|
||
if (intisa->state_lookup_table)
|
||
{
|
||
free (intisa->state_lookup_table);
|
||
intisa->state_lookup_table = 0;
|
||
}
|
||
|
||
if (intisa->sysreg_lookup_table)
|
||
{
|
||
free (intisa->sysreg_lookup_table);
|
||
intisa->sysreg_lookup_table = 0;
|
||
}
|
||
for (n = 0; n < 2; n++)
|
||
{
|
||
if (intisa->sysreg_table[n])
|
||
{
|
||
free (intisa->sysreg_table[n]);
|
||
intisa->sysreg_table[n] = 0;
|
||
}
|
||
}
|
||
|
||
if (intisa->interface_lookup_table)
|
||
{
|
||
free (intisa->interface_lookup_table);
|
||
intisa->interface_lookup_table = 0;
|
||
}
|
||
|
||
if (intisa->funcUnit_lookup_table)
|
||
{
|
||
free (intisa->funcUnit_lookup_table);
|
||
intisa->funcUnit_lookup_table = 0;
|
||
}
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_name_compare (const void *v1, const void *v2)
|
||
{
|
||
xtensa_lookup_entry *e1 = (xtensa_lookup_entry *) v1;
|
||
xtensa_lookup_entry *e2 = (xtensa_lookup_entry *) v2;
|
||
|
||
return strcasecmp (e1->key, e2->key);
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_maxlength (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return intisa->insn_size;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_length_from_chars (xtensa_isa isa, const char *cp)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return (intisa->length_decode_fn) (cp);
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_num_pipe_stages (xtensa_isa isa)
|
||
{
|
||
int num_opcodes, num_uses;
|
||
xtensa_opcode opcode;
|
||
xtensa_funcUnit_use *use;
|
||
int i, stage, max_stage = XTENSA_UNDEFINED;
|
||
|
||
num_opcodes = xtensa_isa_num_opcodes (isa);
|
||
for (opcode = 0; opcode < num_opcodes; opcode++)
|
||
{
|
||
num_uses = xtensa_opcode_num_funcUnit_uses (isa, opcode);
|
||
for (i = 0; i < num_uses; i++)
|
||
{
|
||
use = xtensa_opcode_funcUnit_use (isa, opcode, i);
|
||
stage = use->stage;
|
||
if (stage > max_stage)
|
||
max_stage = stage;
|
||
}
|
||
}
|
||
|
||
return max_stage + 1;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_num_formats (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return intisa->num_formats;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_num_opcodes (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return intisa->num_opcodes;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_num_regfiles (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return intisa->num_regfiles;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_num_states (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return intisa->num_states;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_num_sysregs (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return intisa->num_sysregs;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_num_interfaces (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return intisa->num_interfaces;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_isa_num_funcUnits (xtensa_isa isa)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
return intisa->num_funcUnits;
|
||
}
|
||
|
||
|
||
|
||
/* Instruction formats. */
|
||
|
||
|
||
#define CHECK_FORMAT(INTISA,FMT,ERRVAL) \
|
||
do { \
|
||
if ((FMT) < 0 || (FMT) >= (INTISA)->num_formats) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_format; \
|
||
strcpy (xtisa_error_msg, "invalid format specifier"); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
#define CHECK_SLOT(INTISA,FMT,SLOT,ERRVAL) \
|
||
do { \
|
||
if ((SLOT) < 0 || (SLOT) >= (INTISA)->formats[FMT].num_slots) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_slot; \
|
||
strcpy (xtisa_error_msg, "invalid slot specifier"); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
const char *
|
||
xtensa_format_name (xtensa_isa isa, xtensa_format fmt)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_FORMAT (intisa, fmt, NULL);
|
||
return intisa->formats[fmt].name;
|
||
}
|
||
|
||
|
||
xtensa_format
|
||
xtensa_format_lookup (xtensa_isa isa, const char *fmtname)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int fmt;
|
||
|
||
if (!fmtname || !*fmtname)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_format;
|
||
strcpy (xtisa_error_msg, "invalid format name");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
for (fmt = 0; fmt < intisa->num_formats; fmt++)
|
||
{
|
||
if (strcasecmp (fmtname, intisa->formats[fmt].name) == 0)
|
||
return fmt;
|
||
}
|
||
|
||
xtisa_errno = xtensa_isa_bad_format;
|
||
sprintf (xtisa_error_msg, "format \"%s\" not recognized", fmtname);
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
|
||
xtensa_format
|
||
xtensa_format_decode (xtensa_isa isa, const xtensa_insnbuf insn)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_format fmt;
|
||
|
||
fmt = (intisa->format_decode_fn) (insn);
|
||
if (fmt != XTENSA_UNDEFINED)
|
||
return fmt;
|
||
|
||
xtisa_errno = xtensa_isa_bad_format;
|
||
strcpy (xtisa_error_msg, "cannot decode instruction format");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_format_encode (xtensa_isa isa, xtensa_format fmt, xtensa_insnbuf insn)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_FORMAT (intisa, fmt, -1);
|
||
(*intisa->formats[fmt].encode_fn) (insn);
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_format_length (xtensa_isa isa, xtensa_format fmt)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED);
|
||
return intisa->formats[fmt].length;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_format_num_slots (xtensa_isa isa, xtensa_format fmt)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED);
|
||
return intisa->formats[fmt].num_slots;
|
||
}
|
||
|
||
|
||
xtensa_opcode
|
||
xtensa_format_slot_nop_opcode (xtensa_isa isa, xtensa_format fmt, int slot)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int slot_id;
|
||
|
||
CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED);
|
||
CHECK_SLOT (intisa, fmt, slot, XTENSA_UNDEFINED);
|
||
|
||
slot_id = intisa->formats[fmt].slot_id[slot];
|
||
return xtensa_opcode_lookup (isa, intisa->slots[slot_id].nop_name);
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_format_get_slot (xtensa_isa isa, xtensa_format fmt, int slot,
|
||
const xtensa_insnbuf insn, xtensa_insnbuf slotbuf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int slot_id;
|
||
|
||
CHECK_FORMAT (intisa, fmt, -1);
|
||
CHECK_SLOT (intisa, fmt, slot, -1);
|
||
|
||
slot_id = intisa->formats[fmt].slot_id[slot];
|
||
(*intisa->slots[slot_id].get_fn) (insn, slotbuf);
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_format_set_slot (xtensa_isa isa, xtensa_format fmt, int slot,
|
||
xtensa_insnbuf insn, const xtensa_insnbuf slotbuf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int slot_id;
|
||
|
||
CHECK_FORMAT (intisa, fmt, -1);
|
||
CHECK_SLOT (intisa, fmt, slot, -1);
|
||
|
||
slot_id = intisa->formats[fmt].slot_id[slot];
|
||
(*intisa->slots[slot_id].set_fn) (insn, slotbuf);
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
/* Opcode information. */
|
||
|
||
|
||
#define CHECK_OPCODE(INTISA,OPC,ERRVAL) \
|
||
do { \
|
||
if ((OPC) < 0 || (OPC) >= (INTISA)->num_opcodes) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_opcode; \
|
||
strcpy (xtisa_error_msg, "invalid opcode specifier"); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
xtensa_opcode
|
||
xtensa_opcode_lookup (xtensa_isa isa, const char *opname)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_lookup_entry entry, *result;
|
||
|
||
if (!opname || !*opname)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_opcode;
|
||
strcpy (xtisa_error_msg, "invalid opcode name");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
entry.key = opname;
|
||
result = bsearch (&entry, intisa->opname_lookup_table, intisa->num_opcodes,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
if (!result)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_opcode;
|
||
sprintf (xtisa_error_msg, "opcode \"%s\" not recognized", opname);
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
return result->u.opcode;
|
||
}
|
||
|
||
|
||
xtensa_opcode
|
||
xtensa_opcode_decode (xtensa_isa isa, xtensa_format fmt, int slot,
|
||
const xtensa_insnbuf slotbuf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int slot_id;
|
||
xtensa_opcode opc;
|
||
|
||
CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED);
|
||
CHECK_SLOT (intisa, fmt, slot, XTENSA_UNDEFINED);
|
||
|
||
slot_id = intisa->formats[fmt].slot_id[slot];
|
||
|
||
opc = (intisa->slots[slot_id].opcode_decode_fn) (slotbuf);
|
||
if (opc == XTENSA_UNDEFINED)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_opcode;
|
||
strcpy (xtisa_error_msg, "cannot decode opcode");
|
||
}
|
||
return opc;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_opcode_encode (xtensa_isa isa, xtensa_format fmt, int slot,
|
||
xtensa_insnbuf slotbuf, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int slot_id;
|
||
xtensa_opcode_encode_fn encode_fn;
|
||
|
||
CHECK_FORMAT (intisa, fmt, -1);
|
||
CHECK_SLOT (intisa, fmt, slot, -1);
|
||
CHECK_OPCODE (intisa, opc, -1);
|
||
|
||
slot_id = intisa->formats[fmt].slot_id[slot];
|
||
encode_fn = intisa->opcodes[opc].encode_fns[slot_id];
|
||
if (!encode_fn)
|
||
{
|
||
xtisa_errno = xtensa_isa_wrong_slot;
|
||
sprintf (xtisa_error_msg,
|
||
"opcode \"%s\" is not allowed in slot %d of format \"%s\"",
|
||
intisa->opcodes[opc].name, slot, intisa->formats[fmt].name);
|
||
return -1;
|
||
}
|
||
(*encode_fn) (slotbuf);
|
||
return 0;
|
||
}
|
||
|
||
|
||
const char *
|
||
xtensa_opcode_name (xtensa_isa isa, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_OPCODE (intisa, opc, NULL);
|
||
return intisa->opcodes[opc].name;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_opcode_is_branch (xtensa_isa isa, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_BRANCH) != 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_opcode_is_jump (xtensa_isa isa, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_JUMP) != 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_opcode_is_loop (xtensa_isa isa, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_LOOP) != 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_opcode_is_call (xtensa_isa isa, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_CALL) != 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_opcode_num_operands (xtensa_isa isa, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int iclass_id;
|
||
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
iclass_id = intisa->opcodes[opc].iclass_id;
|
||
return intisa->iclasses[iclass_id].num_operands;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_opcode_num_stateOperands (xtensa_isa isa, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int iclass_id;
|
||
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
iclass_id = intisa->opcodes[opc].iclass_id;
|
||
return intisa->iclasses[iclass_id].num_stateOperands;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_opcode_num_interfaceOperands (xtensa_isa isa, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int iclass_id;
|
||
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
iclass_id = intisa->opcodes[opc].iclass_id;
|
||
return intisa->iclasses[iclass_id].num_interfaceOperands;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_opcode_num_funcUnit_uses (xtensa_isa isa, xtensa_opcode opc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
return intisa->opcodes[opc].num_funcUnit_uses;
|
||
}
|
||
|
||
|
||
xtensa_funcUnit_use *
|
||
xtensa_opcode_funcUnit_use (xtensa_isa isa, xtensa_opcode opc, int u)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_OPCODE (intisa, opc, NULL);
|
||
if (u < 0 || u >= intisa->opcodes[opc].num_funcUnit_uses)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_funcUnit;
|
||
sprintf (xtisa_error_msg, "invalid functional unit use number (%d); "
|
||
"opcode \"%s\" has %d", u, intisa->opcodes[opc].name,
|
||
intisa->opcodes[opc].num_funcUnit_uses);
|
||
return NULL;
|
||
}
|
||
return &intisa->opcodes[opc].funcUnit_uses[u];
|
||
}
|
||
|
||
|
||
|
||
/* Operand information. */
|
||
|
||
|
||
#define CHECK_OPERAND(INTISA,OPC,ICLASS,OPND,ERRVAL) \
|
||
do { \
|
||
if ((OPND) < 0 || (OPND) >= (ICLASS)->num_operands) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_operand; \
|
||
sprintf (xtisa_error_msg, "invalid operand number (%d); " \
|
||
"opcode \"%s\" has %d operands", (OPND), \
|
||
(INTISA)->opcodes[(OPC)].name, (ICLASS)->num_operands); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
static xtensa_operand_internal *
|
||
get_operand (xtensa_isa_internal *intisa, xtensa_opcode opc, int opnd)
|
||
{
|
||
xtensa_iclass_internal *iclass;
|
||
int iclass_id, operand_id;
|
||
|
||
CHECK_OPCODE (intisa, opc, NULL);
|
||
iclass_id = intisa->opcodes[opc].iclass_id;
|
||
iclass = &intisa->iclasses[iclass_id];
|
||
CHECK_OPERAND (intisa, opc, iclass, opnd, NULL);
|
||
operand_id = iclass->operands[opnd].u.operand_id;
|
||
return &intisa->operands[operand_id];
|
||
}
|
||
|
||
|
||
const char *
|
||
xtensa_operand_name (xtensa_isa isa, xtensa_opcode opc, int opnd)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return NULL;
|
||
return intop->name;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_is_visible (xtensa_isa isa, xtensa_opcode opc, int opnd)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_iclass_internal *iclass;
|
||
int iclass_id, operand_id;
|
||
xtensa_operand_internal *intop;
|
||
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
iclass_id = intisa->opcodes[opc].iclass_id;
|
||
iclass = &intisa->iclasses[iclass_id];
|
||
CHECK_OPERAND (intisa, opc, iclass, opnd, XTENSA_UNDEFINED);
|
||
|
||
/* Special case for "sout" operands. */
|
||
if (iclass->operands[opnd].inout == 's')
|
||
return 0;
|
||
|
||
operand_id = iclass->operands[opnd].u.operand_id;
|
||
intop = &intisa->operands[operand_id];
|
||
|
||
if ((intop->flags & XTENSA_OPERAND_IS_INVISIBLE) == 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
char
|
||
xtensa_operand_inout (xtensa_isa isa, xtensa_opcode opc, int opnd)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_iclass_internal *iclass;
|
||
int iclass_id;
|
||
char inout;
|
||
|
||
CHECK_OPCODE (intisa, opc, 0);
|
||
iclass_id = intisa->opcodes[opc].iclass_id;
|
||
iclass = &intisa->iclasses[iclass_id];
|
||
CHECK_OPERAND (intisa, opc, iclass, opnd, 0);
|
||
inout = iclass->operands[opnd].inout;
|
||
|
||
/* Special case for "sout" operands. */
|
||
if (inout == 's')
|
||
return 'o';
|
||
|
||
return inout;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_get_field (xtensa_isa isa, xtensa_opcode opc, int opnd,
|
||
xtensa_format fmt, int slot,
|
||
const xtensa_insnbuf slotbuf, uint32 *valp)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
int slot_id;
|
||
xtensa_get_field_fn get_fn;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return -1;
|
||
|
||
CHECK_FORMAT (intisa, fmt, -1);
|
||
CHECK_SLOT (intisa, fmt, slot, -1);
|
||
|
||
slot_id = intisa->formats[fmt].slot_id[slot];
|
||
if (intop->field_id == XTENSA_UNDEFINED)
|
||
{
|
||
xtisa_errno = xtensa_isa_no_field;
|
||
strcpy (xtisa_error_msg, "implicit operand has no field");
|
||
return -1;
|
||
}
|
||
get_fn = intisa->slots[slot_id].get_field_fns[intop->field_id];
|
||
if (!get_fn)
|
||
{
|
||
xtisa_errno = xtensa_isa_wrong_slot;
|
||
sprintf (xtisa_error_msg,
|
||
"operand \"%s\" does not exist in slot %d of format \"%s\"",
|
||
intop->name, slot, intisa->formats[fmt].name);
|
||
return -1;
|
||
}
|
||
*valp = (*get_fn) (slotbuf);
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_set_field (xtensa_isa isa, xtensa_opcode opc, int opnd,
|
||
xtensa_format fmt, int slot,
|
||
xtensa_insnbuf slotbuf, uint32 val)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
int slot_id;
|
||
xtensa_set_field_fn set_fn;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return -1;
|
||
|
||
CHECK_FORMAT (intisa, fmt, -1);
|
||
CHECK_SLOT (intisa, fmt, slot, -1);
|
||
|
||
slot_id = intisa->formats[fmt].slot_id[slot];
|
||
if (intop->field_id == XTENSA_UNDEFINED)
|
||
{
|
||
xtisa_errno = xtensa_isa_no_field;
|
||
strcpy (xtisa_error_msg, "implicit operand has no field");
|
||
return -1;
|
||
}
|
||
set_fn = intisa->slots[slot_id].set_field_fns[intop->field_id];
|
||
if (!set_fn)
|
||
{
|
||
xtisa_errno = xtensa_isa_wrong_slot;
|
||
sprintf (xtisa_error_msg,
|
||
"operand \"%s\" does not exist in slot %d of format \"%s\"",
|
||
intop->name, slot, intisa->formats[fmt].name);
|
||
return -1;
|
||
}
|
||
(*set_fn) (slotbuf, val);
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_encode (xtensa_isa isa, xtensa_opcode opc, int opnd,
|
||
uint32 *valp)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
uint32 test_val, orig_val;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return -1;
|
||
|
||
if (!intop->encode)
|
||
{
|
||
/* This is a default operand for a field. How can we tell if the
|
||
value fits in the field? Write the value into the field,
|
||
read it back, and then make sure we get the same value. */
|
||
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
static xtensa_insnbuf tmpbuf = 0;
|
||
int slot_id;
|
||
|
||
if (!tmpbuf)
|
||
{
|
||
tmpbuf = xtensa_insnbuf_alloc (isa);
|
||
CHECK_ALLOC (tmpbuf, -1);
|
||
}
|
||
|
||
/* A default operand is always associated with a field,
|
||
but check just to be sure.... */
|
||
if (intop->field_id == XTENSA_UNDEFINED)
|
||
{
|
||
xtisa_errno = xtensa_isa_internal_error;
|
||
strcpy (xtisa_error_msg, "operand has no field");
|
||
return -1;
|
||
}
|
||
|
||
/* Find some slot that includes the field. */
|
||
for (slot_id = 0; slot_id < intisa->num_slots; slot_id++)
|
||
{
|
||
xtensa_get_field_fn get_fn =
|
||
intisa->slots[slot_id].get_field_fns[intop->field_id];
|
||
xtensa_set_field_fn set_fn =
|
||
intisa->slots[slot_id].set_field_fns[intop->field_id];
|
||
|
||
if (get_fn && set_fn)
|
||
{
|
||
(*set_fn) (tmpbuf, *valp);
|
||
return ((*get_fn) (tmpbuf) != *valp);
|
||
}
|
||
}
|
||
|
||
/* Couldn't find any slot containing the field.... */
|
||
xtisa_errno = xtensa_isa_no_field;
|
||
strcpy (xtisa_error_msg, "field does not exist in any slot");
|
||
return -1;
|
||
}
|
||
|
||
/* Encode the value. In some cases, the encoding function may detect
|
||
errors, but most of the time the only way to determine if the value
|
||
was successfully encoded is to decode it and check if it matches
|
||
the original value. */
|
||
orig_val = *valp;
|
||
if ((*intop->encode) (valp) ||
|
||
(test_val = *valp, (*intop->decode) (&test_val)) ||
|
||
test_val != orig_val)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_value;
|
||
sprintf (xtisa_error_msg, "cannot encode operand value 0x%08x", *valp);
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_decode (xtensa_isa isa, xtensa_opcode opc, int opnd,
|
||
uint32 *valp)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return -1;
|
||
|
||
/* Use identity function for "default" operands. */
|
||
if (!intop->decode)
|
||
return 0;
|
||
|
||
if ((*intop->decode) (valp))
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_value;
|
||
sprintf (xtisa_error_msg, "cannot decode operand value 0x%08x", *valp);
|
||
return -1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_is_register (xtensa_isa isa, xtensa_opcode opc, int opnd)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return XTENSA_UNDEFINED;
|
||
|
||
if ((intop->flags & XTENSA_OPERAND_IS_REGISTER) != 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
xtensa_regfile
|
||
xtensa_operand_regfile (xtensa_isa isa, xtensa_opcode opc, int opnd)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return XTENSA_UNDEFINED;
|
||
|
||
return intop->regfile;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_num_regs (xtensa_isa isa, xtensa_opcode opc, int opnd)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return XTENSA_UNDEFINED;
|
||
|
||
return intop->num_regs;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_is_known_reg (xtensa_isa isa, xtensa_opcode opc, int opnd)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return XTENSA_UNDEFINED;
|
||
|
||
if ((intop->flags & XTENSA_OPERAND_IS_UNKNOWN) == 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_is_PCrelative (xtensa_isa isa, xtensa_opcode opc, int opnd)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return XTENSA_UNDEFINED;
|
||
|
||
if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) != 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_do_reloc (xtensa_isa isa, xtensa_opcode opc, int opnd,
|
||
uint32 *valp, uint32 pc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return -1;
|
||
|
||
if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) == 0)
|
||
return 0;
|
||
|
||
if (!intop->do_reloc)
|
||
{
|
||
xtisa_errno = xtensa_isa_internal_error;
|
||
strcpy (xtisa_error_msg, "operand missing do_reloc function");
|
||
return -1;
|
||
}
|
||
|
||
if ((*intop->do_reloc) (valp, pc))
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_value;
|
||
sprintf (xtisa_error_msg,
|
||
"do_reloc failed for value 0x%08x at PC 0x%08x", *valp, pc);
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_operand_undo_reloc (xtensa_isa isa, xtensa_opcode opc, int opnd,
|
||
uint32 *valp, uint32 pc)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_operand_internal *intop;
|
||
|
||
intop = get_operand (intisa, opc, opnd);
|
||
if (!intop) return -1;
|
||
|
||
if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) == 0)
|
||
return 0;
|
||
|
||
if (!intop->undo_reloc)
|
||
{
|
||
xtisa_errno = xtensa_isa_internal_error;
|
||
strcpy (xtisa_error_msg, "operand missing undo_reloc function");
|
||
return -1;
|
||
}
|
||
|
||
if ((*intop->undo_reloc) (valp, pc))
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_value;
|
||
sprintf (xtisa_error_msg,
|
||
"undo_reloc failed for value 0x%08x at PC 0x%08x", *valp, pc);
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
/* State Operands. */
|
||
|
||
|
||
#define CHECK_STATE_OPERAND(INTISA,OPC,ICLASS,STOP,ERRVAL) \
|
||
do { \
|
||
if ((STOP) < 0 || (STOP) >= (ICLASS)->num_stateOperands) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_operand; \
|
||
sprintf (xtisa_error_msg, "invalid state operand number (%d); " \
|
||
"opcode \"%s\" has %d state operands", (STOP), \
|
||
(INTISA)->opcodes[(OPC)].name, (ICLASS)->num_stateOperands); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
xtensa_state
|
||
xtensa_stateOperand_state (xtensa_isa isa, xtensa_opcode opc, int stOp)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_iclass_internal *iclass;
|
||
int iclass_id;
|
||
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
iclass_id = intisa->opcodes[opc].iclass_id;
|
||
iclass = &intisa->iclasses[iclass_id];
|
||
CHECK_STATE_OPERAND (intisa, opc, iclass, stOp, XTENSA_UNDEFINED);
|
||
return iclass->stateOperands[stOp].u.state;
|
||
}
|
||
|
||
|
||
char
|
||
xtensa_stateOperand_inout (xtensa_isa isa, xtensa_opcode opc, int stOp)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_iclass_internal *iclass;
|
||
int iclass_id;
|
||
|
||
CHECK_OPCODE (intisa, opc, 0);
|
||
iclass_id = intisa->opcodes[opc].iclass_id;
|
||
iclass = &intisa->iclasses[iclass_id];
|
||
CHECK_STATE_OPERAND (intisa, opc, iclass, stOp, 0);
|
||
return iclass->stateOperands[stOp].inout;
|
||
}
|
||
|
||
|
||
/* Interface Operands. */
|
||
|
||
|
||
#define CHECK_INTERFACE_OPERAND(INTISA,OPC,ICLASS,IFOP,ERRVAL) \
|
||
do { \
|
||
if ((IFOP) < 0 || (IFOP) >= (ICLASS)->num_interfaceOperands) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_operand; \
|
||
sprintf (xtisa_error_msg, "invalid interface operand number (%d); " \
|
||
"opcode \"%s\" has %d interface operands", (IFOP), \
|
||
(INTISA)->opcodes[(OPC)].name, \
|
||
(ICLASS)->num_interfaceOperands); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
xtensa_interface
|
||
xtensa_interfaceOperand_interface (xtensa_isa isa, xtensa_opcode opc,
|
||
int ifOp)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_iclass_internal *iclass;
|
||
int iclass_id;
|
||
|
||
CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED);
|
||
iclass_id = intisa->opcodes[opc].iclass_id;
|
||
iclass = &intisa->iclasses[iclass_id];
|
||
CHECK_INTERFACE_OPERAND (intisa, opc, iclass, ifOp, XTENSA_UNDEFINED);
|
||
return iclass->interfaceOperands[ifOp];
|
||
}
|
||
|
||
|
||
|
||
/* Register Files. */
|
||
|
||
|
||
#define CHECK_REGFILE(INTISA,RF,ERRVAL) \
|
||
do { \
|
||
if ((RF) < 0 || (RF) >= (INTISA)->num_regfiles) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_regfile; \
|
||
strcpy (xtisa_error_msg, "invalid regfile specifier"); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
xtensa_regfile
|
||
xtensa_regfile_lookup (xtensa_isa isa, const char *name)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int n;
|
||
|
||
if (!name || !*name)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_regfile;
|
||
strcpy (xtisa_error_msg, "invalid regfile name");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
/* The expected number of regfiles is small; use a linear search. */
|
||
for (n = 0; n < intisa->num_regfiles; n++)
|
||
{
|
||
if (!strcmp (intisa->regfiles[n].name, name))
|
||
return n;
|
||
}
|
||
|
||
xtisa_errno = xtensa_isa_bad_regfile;
|
||
sprintf (xtisa_error_msg, "regfile \"%s\" not recognized", name);
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
|
||
xtensa_regfile
|
||
xtensa_regfile_lookup_shortname (xtensa_isa isa, const char *shortname)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
int n;
|
||
|
||
if (!shortname || !*shortname)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_regfile;
|
||
strcpy (xtisa_error_msg, "invalid regfile shortname");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
/* The expected number of regfiles is small; use a linear search. */
|
||
for (n = 0; n < intisa->num_regfiles; n++)
|
||
{
|
||
/* Ignore regfile views since they always have the same shortnames
|
||
as their parents. */
|
||
if (intisa->regfiles[n].parent != n)
|
||
continue;
|
||
if (!strcmp (intisa->regfiles[n].shortname, shortname))
|
||
return n;
|
||
}
|
||
|
||
xtisa_errno = xtensa_isa_bad_regfile;
|
||
sprintf (xtisa_error_msg, "regfile shortname \"%s\" not recognized",
|
||
shortname);
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
|
||
const char *
|
||
xtensa_regfile_name (xtensa_isa isa, xtensa_regfile rf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_REGFILE (intisa, rf, NULL);
|
||
return intisa->regfiles[rf].name;
|
||
}
|
||
|
||
|
||
const char *
|
||
xtensa_regfile_shortname (xtensa_isa isa, xtensa_regfile rf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_REGFILE (intisa, rf, NULL);
|
||
return intisa->regfiles[rf].shortname;
|
||
}
|
||
|
||
|
||
xtensa_regfile
|
||
xtensa_regfile_view_parent (xtensa_isa isa, xtensa_regfile rf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED);
|
||
return intisa->regfiles[rf].parent;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_regfile_num_bits (xtensa_isa isa, xtensa_regfile rf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED);
|
||
return intisa->regfiles[rf].num_bits;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_regfile_num_entries (xtensa_isa isa, xtensa_regfile rf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED);
|
||
return intisa->regfiles[rf].num_entries;
|
||
}
|
||
|
||
|
||
/* Processor States. */
|
||
|
||
|
||
#define CHECK_STATE(INTISA,ST,ERRVAL) \
|
||
do { \
|
||
if ((ST) < 0 || (ST) >= (INTISA)->num_states) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_state; \
|
||
strcpy (xtisa_error_msg, "invalid state specifier"); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
xtensa_state
|
||
xtensa_state_lookup (xtensa_isa isa, const char *name)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_lookup_entry entry, *result;
|
||
|
||
if (!name || !*name)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_state;
|
||
strcpy (xtisa_error_msg, "invalid state name");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
entry.key = name;
|
||
result = bsearch (&entry, intisa->state_lookup_table, intisa->num_states,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
if (!result)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_state;
|
||
sprintf (xtisa_error_msg, "state \"%s\" not recognized", name);
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
return result->u.state;
|
||
}
|
||
|
||
|
||
const char *
|
||
xtensa_state_name (xtensa_isa isa, xtensa_state st)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_STATE (intisa, st, NULL);
|
||
return intisa->states[st].name;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_state_num_bits (xtensa_isa isa, xtensa_state st)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_STATE (intisa, st, XTENSA_UNDEFINED);
|
||
return intisa->states[st].num_bits;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_state_is_exported (xtensa_isa isa, xtensa_state st)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_STATE (intisa, st, XTENSA_UNDEFINED);
|
||
if ((intisa->states[st].flags & XTENSA_STATE_IS_EXPORTED) != 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* Sysregs. */
|
||
|
||
|
||
#define CHECK_SYSREG(INTISA,SYSREG,ERRVAL) \
|
||
do { \
|
||
if ((SYSREG) < 0 || (SYSREG) >= (INTISA)->num_sysregs) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_sysreg; \
|
||
strcpy (xtisa_error_msg, "invalid sysreg specifier"); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
xtensa_sysreg
|
||
xtensa_sysreg_lookup (xtensa_isa isa, int num, int is_user)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
|
||
if (is_user != 0)
|
||
is_user = 1;
|
||
|
||
if (num < 0 || num > intisa->max_sysreg_num[is_user]
|
||
|| intisa->sysreg_table[is_user][num] == XTENSA_UNDEFINED)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_sysreg;
|
||
strcpy (xtisa_error_msg, "sysreg not recognized");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
return intisa->sysreg_table[is_user][num];
|
||
}
|
||
|
||
|
||
xtensa_sysreg
|
||
xtensa_sysreg_lookup_name (xtensa_isa isa, const char *name)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_lookup_entry entry, *result;
|
||
|
||
if (!name || !*name)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_sysreg;
|
||
strcpy (xtisa_error_msg, "invalid sysreg name");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
entry.key = name;
|
||
result = bsearch (&entry, intisa->sysreg_lookup_table, intisa->num_sysregs,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
if (!result)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_sysreg;
|
||
sprintf (xtisa_error_msg, "sysreg \"%s\" not recognized", name);
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
return result->u.sysreg;
|
||
}
|
||
|
||
|
||
const char *
|
||
xtensa_sysreg_name (xtensa_isa isa, xtensa_sysreg sysreg)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_SYSREG (intisa, sysreg, NULL);
|
||
return intisa->sysregs[sysreg].name;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_sysreg_number (xtensa_isa isa, xtensa_sysreg sysreg)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_SYSREG (intisa, sysreg, XTENSA_UNDEFINED);
|
||
return intisa->sysregs[sysreg].number;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_sysreg_is_user (xtensa_isa isa, xtensa_sysreg sysreg)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_SYSREG (intisa, sysreg, XTENSA_UNDEFINED);
|
||
if (intisa->sysregs[sysreg].is_user)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* Interfaces. */
|
||
|
||
|
||
#define CHECK_INTERFACE(INTISA,INTF,ERRVAL) \
|
||
do { \
|
||
if ((INTF) < 0 || (INTF) >= (INTISA)->num_interfaces) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_interface; \
|
||
strcpy (xtisa_error_msg, "invalid interface specifier"); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
xtensa_interface
|
||
xtensa_interface_lookup (xtensa_isa isa, const char *ifname)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_lookup_entry entry, *result;
|
||
|
||
if (!ifname || !*ifname)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_interface;
|
||
strcpy (xtisa_error_msg, "invalid interface name");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
entry.key = ifname;
|
||
result = bsearch (&entry, intisa->interface_lookup_table,
|
||
intisa->num_interfaces,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
if (!result)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_interface;
|
||
sprintf (xtisa_error_msg, "interface \"%s\" not recognized", ifname);
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
return result->u.intf;
|
||
}
|
||
|
||
|
||
const char *
|
||
xtensa_interface_name (xtensa_isa isa, xtensa_interface intf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_INTERFACE (intisa, intf, NULL);
|
||
return intisa->interfaces[intf].name;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_interface_num_bits (xtensa_isa isa, xtensa_interface intf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED);
|
||
return intisa->interfaces[intf].num_bits;
|
||
}
|
||
|
||
|
||
char
|
||
xtensa_interface_inout (xtensa_isa isa, xtensa_interface intf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_INTERFACE (intisa, intf, 0);
|
||
return intisa->interfaces[intf].inout;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_interface_has_side_effect (xtensa_isa isa, xtensa_interface intf)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED);
|
||
if ((intisa->interfaces[intf].flags & XTENSA_INTERFACE_HAS_SIDE_EFFECT) != 0)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* Functional Units. */
|
||
|
||
|
||
#define CHECK_FUNCUNIT(INTISA,FUN,ERRVAL) \
|
||
do { \
|
||
if ((FUN) < 0 || (FUN) >= (INTISA)->num_funcUnits) \
|
||
{ \
|
||
xtisa_errno = xtensa_isa_bad_funcUnit; \
|
||
strcpy (xtisa_error_msg, "invalid functional unit specifier"); \
|
||
return (ERRVAL); \
|
||
} \
|
||
} while (0)
|
||
|
||
|
||
xtensa_funcUnit
|
||
xtensa_funcUnit_lookup (xtensa_isa isa, const char *fname)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
xtensa_lookup_entry entry, *result;
|
||
|
||
if (!fname || !*fname)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_funcUnit;
|
||
strcpy (xtisa_error_msg, "invalid functional unit name");
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
entry.key = fname;
|
||
result = bsearch (&entry, intisa->funcUnit_lookup_table,
|
||
intisa->num_funcUnits,
|
||
sizeof (xtensa_lookup_entry), xtensa_isa_name_compare);
|
||
|
||
if (!result)
|
||
{
|
||
xtisa_errno = xtensa_isa_bad_funcUnit;
|
||
sprintf (xtisa_error_msg,
|
||
"functional unit \"%s\" not recognized", fname);
|
||
return XTENSA_UNDEFINED;
|
||
}
|
||
|
||
return result->u.fun;
|
||
}
|
||
|
||
|
||
const char *
|
||
xtensa_funcUnit_name (xtensa_isa isa, xtensa_funcUnit fun)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_FUNCUNIT (intisa, fun, NULL);
|
||
return intisa->funcUnits[fun].name;
|
||
}
|
||
|
||
|
||
int
|
||
xtensa_funcUnit_num_copies (xtensa_isa isa, xtensa_funcUnit fun)
|
||
{
|
||
xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
|
||
CHECK_FUNCUNIT (intisa, fun, XTENSA_UNDEFINED);
|
||
return intisa->funcUnits[fun].num_copies;
|
||
}
|
||
|