binutils-gdb

Commit Graph

Author	SHA1	Message	Date
Max Filippov	4b8e28c793	xtensa: use property tables for correct disassembly xtensa disassembler does not use information from the .xt.prop sections to switch between code/data disassembly in text sections. This may result in incorrect disassembly when data is interpreted as code and disassembler loses synchronization with instruction stream. Use .xt.prop section information to correctly interpret code and data and synchronize with instruction stream. 2018-06-04 Max Filippov <jcmvbkbc@gmail.com> bfd/ * elf32-xtensa.c (xtensa_read_table_entries): Make global. (compute_fill_extra_space): Drop declaration. Rename function to xtensa_compute_fill_extra_space. (compute_ebb_actions, remove_dead_literal): Update references to compute_fill_extra_space. include/ * elf/xtensa.h (xtensa_read_table_entries) (xtensa_compute_fill_extra_space): New declarations. opcodes/ * xtensa-dis.c (bfd.h, elf/xtensa.h): New includes. (dis_private): Add new fields for property section tracking. (xtensa_coalesce_insn_tables, xtensa_find_table_entry) (xtensa_instruction_fits): New functions. (fetch_data): Bump minimal fetch size to 4. (print_insn_xtensa): Make struct dis_private static. Load and prepare property table on section change. Don't disassemble literals. Don't disassemble instructions that cross property table boundaries.	8 years ago
Alan Modra	219d1afa89	Update year range in copyright notice of binutils files	8 years ago
Yao Qi	88c1242dc0	Move print_insn_XXX to an opcodes internal header With the changes done in previous patches, print_insn_XXX functions don't have to be external visible out of opcodes, because both gdb and objdump select disassemblers through a single interface. This patch moves these print_insn_XXX declarations from include/dis-asm.h to opcodes/disassemble.h, which is a new header added by this patch. include: 2017-05-24 Yao Qi <yao.qi@linaro.org> * dis-asm.h: Move some function declarations to opcodes/disassemble.h. opcodes: 2017-05-24 Yao Qi <yao.qi@linaro.org> * alpha-dis.c: Include disassemble.h, don't include dis-asm.h. * avr-dis.c, bfin-dis.c, cr16-dis.c: Likewise. * crx-dis.c, d10v-dis.c, d30v-dis.c: Likewise. * disassemble.c, dlx-dis.c, epiphany-dis.c: Likewise. * fr30-dis.c, ft32-dis.c, h8300-dis.c, h8500-dis.c: Likewise. * hppa-dis.c, i370-dis.c, i386-dis.c: Likewise. * i860-dis.c, i960-dis.c, ip2k-dis.c: Likewise. * iq2000-dis.c, lm32-dis.c, m10200-dis.c: Likewise. * m10300-dis.c, m32r-dis.c, m68hc11-dis.c: Likewise. * m68k-dis.c, m88k-dis.c, mcore-dis.c: Likewise. * metag-dis.c, microblaze-dis.c, mmix-dis.c: Likewise. * moxie-dis.c, msp430-dis.c, mt-dis.c: * nds32-dis.c, nios2-dis.c, ns32k-dis.c: Likewise. * or1k-dis.c, pdp11-dis.c, pj-dis.c: Likewise. * ppc-dis.c, pru-dis.c, riscv-dis.c: Likewise. * rl78-dis.c, s390-dis.c, score-dis.c: Likewise. * sh-dis.c, sh64-dis.c, tic30-dis.c: Likewise. * tic4x-dis.c, tic54x-dis.c, tic6x-dis.c: Likewise. * tic80-dis.c, tilegx-dis.c, tilepro-dis.c: Likewise. * v850-dis.c, vax-dis.c, visium-dis.c: Likewise. * w65-dis.c, wasm32-dis.c, xc16x-dis.c: Likewise. * xgate-dis.c, xstormy16-dis.c, xtensa-dis.c: Likewise. * z80-dis.c, z8k-dis.c: Likewise. * disassemble.h: New file.	9 years ago
Alan Modra	2571583aed	Update year range in copyright notice of all files.	9 years ago
Alan Modra	6f2750feaf	Copyright update for binutils	10 years ago
H.J. Lu	43e65147c0	Remove trailing spaces in opcodes	11 years ago
Alan Modra	b90efa5b79	ChangeLog rotatation and copyright year update	11 years ago
H.J. Lu	8df14d78dc	Use sigsetjmp/siglongjmp in opcodes sigsetjmp/siglongjmp without saving the signal mask is faster than setjmp/longjmp on systems where the signal mask is saved. This patch uses sigsetjmp/siglongjmp without saving the signal mask if possible. PR binutils/16886 * config.in: Regenerated. * configure: Likewise. * configure.in: Check if sigsetjmp is available. * h8500-dis.c (private): Replace jmp_buf with OPCODES_SIGJMP_BUF. (fetch_data): Replace longjmp with OPCODES_SIGLONGJMP. (print_insn_h8500): Replace setjmp with OPCODES_SIGSETJMP. * i386-dis.c (dis_private): Replace jmp_buf with OPCODES_SIGJMP_BUF. (fetch_data): Replace longjmp with OPCODES_SIGLONGJMP. (print_insn): Replace setjmp with OPCODES_SIGSETJMP. * ns32k-dis.c (private): Replace jmp_buf with OPCODES_SIGJMP_BUF. (fetch_data): Replace longjmp with OPCODES_SIGLONGJMP. (print_insn_ns32k): Replace setjmp with OPCODES_SIGSETJMP. * sysdep.h (OPCODES_SIGJMP_BUF): New macro. (OPCODES_SIGSETJMP): Likewise. (OPCODES_SIGLONGJMP): Likewise. * vax-dis.c (private): Replace jmp_buf with OPCODES_SIGJMP_BUF. (fetch_data): Replace longjmp with OPCODES_SIGLONGJMP. (print_insn_vax): Replace setjmp with OPCODES_SIGSETJMP. * xtensa-dis.c (dis_private): Replace jmp_buf with OPCODES_SIGJMP_BUF. (fetch_data): Replace longjmp with OPCODES_SIGLONGJMP. (print_insn_xtensa): Replace setjmp with OPCODES_SIGSETJMP. * z8k-dis.c(instr_data_s): Replace jmp_buf with OPCODES_SIGJMP_BUF. (fetch_data): Replace longjmp with OPCODES_SIGLONGJMP. (print_insn_z8k): Replace setjmp with OPCODES_SIGSETJMP.	12 years ago
Alan Modra	4b95cf5c0c	Update copyright years	12 years ago
Nick Clifton	df7b86aa4c	PR 14072 * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * sysdep.h: Generate an error if included before config.h. * alpha-opc.c: Include sysdep.h before any other header file. * alpha-dis.c: Likewise. * avr-dis.c: Likewise. * cgen-opc.c: Likewise. * cr16-dis.c: Likewise. * cris-dis.c: Likewise. * crx-dis.c: Likewise. * d10v-dis.c: Likewise. * d10v-opc.c: Likewise. * d30v-dis.c: Likewise. * d30v-opc.c: Likewise. * h8500-dis.c: Likewise. * i370-dis.c: Likewise. * i370-opc.c: Likewise. * m10200-dis.c: Likewise. * m10300-dis.c: Likewise. * micromips-opc.c: Likewise. * mips-opc.c: Likewise. * mips61-opc.c: Likewise. * moxie-dis.c: Likewise. * or32-opc.c: Likewise. * pj-dis.c: Likewise. * ppc-dis.c: Likewise. * ppc-opc.c: Likewise. * s390-dis.c: Likewise. * sh-dis.c: Likewise. * sh64-dis.c: Likewise. * sparc-dis.c: Likewise. * sparc-opc.c: Likewise. * spu-dis.c: Likewise. * tic30-dis.c: Likewise. * tic54x-dis.c: Likewise. * tic80-dis.c: Likewise. * tic80-opc.c: Likewise. * tilegx-dis.c: Likewise. * tilepro-dis.c: Likewise. * v850-dis.c: Likewise. * v850-opc.c: Likewise. * vax-dis.c: Likewise. * w65-dis.c: Likewise. * xgate-dis.c: Likewise. * xtensa-dis.c: Likewise. * rl78-decode.opc: Likewise. * rl78-decode.c: Regenerate. * rx-decode.opc: Likewise. * rx-decode.c: Regenerate. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * sysdep.h: Generate an error if included before config.h. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * aclocal.m4: Regenerate. * bfd-in.h: Generate an error if included before config.h. * sysdep.h: Likewise. * bfd-in2.h: Regenerate. * compress.c: Remove #include "config.h". * plugin.c: Likewise. * elf32-m68hc1x.c: Include sysdep.h before alloca-conf.h. * elf64-hppa.c: Likewise. * som.c: Likewise. * xsymc.c: Likewise. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * aclocal.m4: Regenerate. * Makefile.am: Use wrappers around C files generated by flex. * Makefile.in: Regenerate. * doc/Makefile.in: Regenerate. * itbl-lex-wrapper.c: New file. * config/bfin-lex-wrapper.c: New file. * cgen.c: Include as.h before setjmp.h. * config/tc-dlx.c: Include as.h before any other header. * config/tc-h8300.c: Likewise. * config/tc-lm32.c: Likewise. * config/tc-mep.c: Likewise. * config/tc-microblaze.c: Likewise. * config/tc-mmix.c: Likewise. * config/tc-msp430.c: Likewise. * config/tc-or32.c: Likewise. * config/tc-tic4x.c: Likewise. * config/tc-tic54x.c: Likewise. * config/tc-xtensa.c: Likewise. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * unwind-ia64.h: Include config.h.	14 years ago
Alan Modra	aa820537ea	update copyright dates	17 years ago
Nick Clifton	9b201bb5e5	Change source files over to GPLv3.	19 years ago
Nick Clifton	f432110413	Update the address and phone number of the FSF	21 years ago
Bob Wilson	7fa3d080a2	bfd ChangeLog * elf32-xtensa.c: Use ISO C90 formatting. gas ChangeLog * config/tc-xtensa.c: Use ISO C90 formatting. * config/tc-xtensa.h: Likewise. * config/xtensa-istack.h: Likewise. * config/xtensa-relax.c: Likewise. * config/xtensa-relax.h: Likewise. ld ChangeLog * emultempl/xtensaelf.em: Use ISO C90 formatting. opcodes ChangeLog * xtensa-dis.c: Use ISO C90 formatting.	22 years ago
Bob Wilson	43cd72b9aa	bfd ChangeLog * 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.	22 years ago
Bob Wilson	118fecd307	* xtensa-dis.c (fetch_data): Remove numBytes parameter. (print_insn_xtensa): Fix call to fetch_data.	23 years ago
Nick Clifton	e0001a05d2	Add Xtensa port	23 years ago

17 Commits (4b8e28c79356265b2c111e044142fb6d6d2db44e)