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https://sourceware.org/git/binutils-gdb.git
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63b4cc53dc
There is really no need to write code like "foo != 0 ? TRUE : FALSE"
unless we had stupidly defined FALSE as something other than 0 or TRUE
as something other than 1. The simpler "foo != 0" does just as well.
Similarly "(condition == TRUE)" or "(condition == FALSE) can be
simplified to "(condition)" and "(!condition)" respectively.
I'll note that there is reason to use "integer_expression != 0" when
assigning a bfd_boolean rather than the simpler "integer_expression",
if you expect the variable to have 0 or 1 value. It's probably even a
good idea to not rely on implicit conversion if bfd_boolean were _Bool.
bfd/
* aoutx.h (aout_link_write_symbols): Don't cast boolean expression
to bfd_boolean.
* elf32-or1k.c (or1k_set_got_and_rela_sizes): Dont compare booleans
against FALSE.
* elf32-arc.c (name_for_global_symbol): Don't compare boolean to TRUE.
(is_reloc_PC_relative): Don't use "boolean_condition ? TRUE : FALSE".
(is_reloc_SDA_relative, is_reloc_for_GOT): Likewise.
(is_reloc_for_PLT, is_reloc_for_TLS): Likewise.
* elf32-arm.c (stm32l4xx_need_create_replacing_stub): Likewise.
* elf32-nds32.c (insert_nds32_elf_blank): Likewise.
* elf32-rx.c (rx_set_section_contents): Likewise.
* elfnn-aarch64.c (elfNN_aarch64_final_link_relocate): Likewise.
* elfxx-mips.c (_bfd_mips_elf_ignore_undef_symbol): Likewise.
* mach-o.c (bfd_mach_o_read_command): Likewise.
* targets.c (bfd_get_target_info): Likewise.
binutils/
* dlltool.c (main): Don't use "boolean_condition ? TRUE : FALSE".
* dwarf.c (read_and_display_attr_value): Likewise.
(display_debug_str_offsets): Likewise.
* objdump.c (dump_bfd): Likewise.
* readelf.c (dump_section_as_strings): Likewise.
(dump_section_as_bytes): Likewise.
gas/
* atof-generic.c (FALSE, TRUE): Don't define.
* config/obj-elf.h (FALSE, TRUE): Don't define.
* config/obj-som.h (FALSE, TRUE): Don't define.
* config/tc-hppa.h (FALSE, TRUE): Don't define.
* config/tc-pdp11.c (FALSE, TRUE): Don't define.
* config/tc-iq2000.h (obj_fix_adjustable): Delete.
* config/tc-m32r.h (TC_FIX_ADJUSTABLE): Delete.
* config/tc-mt.h (obj_fix_adjustable): Delete.
* config/tc-nds32.h (TC_FIX_ADJUSTABLE): Delete.
* config/tc-arc.c (parse_opcode_flags): Simplify boolean expression.
(relaxable_flag, relaxable_operand, assemble_insn): Likewise.
(tokenize_extregister): Likewise.
* config/tc-csky.c (parse_opcode, get_operand_value): Likewise.
(parse_operands_op, parse_operands, md_assemble): Likewise.
* config/tc-d10v.c (build_insn): Likewise.
* config/tc-score.c (s3_gen_insn_frag): Likewise.
* config/tc-score7.c (s7_gen_insn_frag, s7_relax_frag): Likewise.
* config/tc-tic6x.c (tic6x_update_features, md_assemble): Likewise.
* config/tc-z80.c (emit_byte): Likewise.
include/
* opcode/aarch64.h (alias_opcode_p): Simplify boolean expression.
(opcode_has_alias, pseudo_opcode_p, optional_operand_p): Likewise.
(opcode_has_special_coder): Likewise.
ld/
* emultempl/aix.em (gld${EMULATION_NAME}_before_allocation): Simplify
boolean expression.
* lexsup.c (parse_args): Likewise.
* pe-dll.c (pe_dll_id_target): Likewise.
opcodes/
* aarch64-opc.c (vector_qualifier_p): Simplify boolean expression.
(fp_qualifier_p, get_data_pattern): Likewise.
(aarch64_get_operand_modifier_from_value): Likewise.
(aarch64_extend_operator_p, aarch64_shift_operator_p): Likewise.
(operand_variant_qualifier_p): Likewise.
(qualifier_value_in_range_constraint_p): Likewise.
(aarch64_get_qualifier_esize): Likewise.
(aarch64_get_qualifier_nelem): Likewise.
(aarch64_get_qualifier_standard_value): Likewise.
(get_lower_bound, get_upper_bound): Likewise.
(aarch64_find_best_match, match_operands_qualifier): Likewise.
(aarch64_print_operand): Likewise.
* aarch64-opc.h (operand_has_inserter, operand_has_extractor): Likewise.
(operand_need_sign_extension, operand_need_shift_by_two): Likewise.
(operand_need_shift_by_four, operand_maybe_stack_pointer): Likewise.
* arm-dis.c (print_insn_mve, print_insn_thumb32): Likewise.
* tic6x-dis.c (tic6x_check_fetch_packet_header): Likewise.
(print_insn_tic6x): Likewise.
316 lines
10 KiB
C
316 lines
10 KiB
C
/* tc-nds32.h -- Header file for tc-nds32.c.
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Copyright (C) 2012-2021 Free Software Foundation, Inc.
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Contributed by Andes Technology Corporation.
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This file is part of GAS.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef TC_NDS32
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#define TC_NDS32
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#include "bfd_stdint.h"
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/* Enum mapping symbol. */
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enum mstate
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{
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MAP_UNDEFINED = 0, /* Must be zero, for seginfo in new sections. */
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MAP_DATA,
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MAP_CODE,
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};
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#define TC_SEGMENT_INFO_TYPE struct nds32_segment_info_type
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/* For mapping symbol. */
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struct nds32_segment_info_type
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{
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enum mstate mapstate;
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};
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#define LISTING_HEADER \
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(target_big_endian ? "NDS32 GAS" : "NDS32 GAS Little Endian")
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/* The target BFD architecture. */
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#define TARGET_ARCH bfd_arch_nds32
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/* mapping to mach_table[5] */
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#define ISA_V1 bfd_mach_n1h
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#define ISA_V2 bfd_mach_n1h_v2
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#define ISA_V3 bfd_mach_n1h_v3
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#define ISA_V3M bfd_mach_n1h_v3m
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/* Default to big endian. Please note that for Andes architecture,
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instructions are always in big-endian format. */
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#ifndef TARGET_BYTES_BIG_ENDIAN
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#define TARGET_BYTES_BIG_ENDIAN 1
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#endif
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/* as.c. */
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/* Extend GAS command line option handling capability. */
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extern int nds32_parse_option (int, const char *);
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extern void nds32_after_parse_args (void);
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/* The endianness of the target format may change based on command
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line arguments. */
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extern const char * nds32_target_format (void);
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#define md_parse_option(optc, optarg) nds32_parse_option (optc, optarg)
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#define md_after_parse_args() nds32_after_parse_args ()
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#define TARGET_FORMAT nds32_target_format()
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/* expr.c */
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extern int nds32_parse_name (char const *, expressionS *, enum expr_mode, char *);
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extern bfd_boolean nds32_allow_local_subtract (expressionS *, expressionS *, segT);
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#define md_parse_name(name, exprP, mode, nextcharP) \
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nds32_parse_name (name, exprP, mode, nextcharP)
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#define md_allow_local_subtract(lhs,rhs,sect) nds32_allow_local_subtract (lhs, rhs, sect)
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/* dwarf2dbg.c. */
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#define DWARF2_USE_FIXED_ADVANCE_PC 1
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/* write.c. */
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extern long nds32_pcrel_from_section (struct fix *, segT);
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extern bfd_boolean nds32_fix_adjustable (struct fix *);
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extern void nds32_frob_file (void);
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extern void nds32_post_relax_hook (void);
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extern void nds32_frob_file_before_fix (void);
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extern void elf_nds32_final_processing (void);
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extern int nds32_validate_fix_sub (struct fix *, segT);
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extern int nds32_force_relocation (struct fix *);
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extern void nds32_set_section_relocs (asection *, arelent ** , unsigned int);
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/* Fill in rs_align_code fragments. TODO: Review this. */
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extern void nds32_handle_align (fragS *);
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extern int nds32_relax_frag (segT, fragS *, long);
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extern int tc_nds32_regname_to_dw2regnum (char *);
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extern void tc_nds32_frame_initial_instructions (void);
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#define MD_PCREL_FROM_SECTION(fix, sect) nds32_pcrel_from_section (fix, sect)
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#define TC_FINALIZE_SYMS_BEFORE_SIZE_SEG 0
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#define tc_fix_adjustable(FIX) nds32_fix_adjustable (FIX)
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#define md_apply_fix(fixP, addn, seg) nds32_apply_fix (fixP, addn, seg)
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#define md_post_relax_hook nds32_post_relax_hook ()
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#define tc_frob_file_before_fix() nds32_frob_file_before_fix ()
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#define elf_tc_final_processing() elf_nds32_final_processing ()
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/* For DIFF relocations. The default behavior is inconsistent with the
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asm internal document. */
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#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \
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(GENERIC_FORCE_RELOCATION_SUB_SAME (FIX, SEC) \
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|| TC_FORCE_RELOCATION (FIX))
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#define TC_FORCE_RELOCATION(fix) nds32_force_relocation (fix)
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#define TC_VALIDATE_FIX_SUB(FIX,SEG) nds32_validate_fix_sub (FIX,SEG)
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#define SET_SECTION_RELOCS(sec, relocs, n) nds32_set_section_relocs (sec, relocs, n)
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/* Values passed to md_apply_fix don't include the symbol value. */
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#define MD_APPLY_SYM_VALUE(FIX) 0
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#define HANDLE_ALIGN(f) nds32_handle_align (f)
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#undef DIFF_EXPR_OK /* They should be fixed in linker. */
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#define md_relax_frag(segment, fragP, stretch) nds32_relax_frag (segment, fragP, stretch)
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#define WORKING_DOT_WORD /* We don't need to handle .word strangely. */
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/* Using to chain fixup with previous fixup. */
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#define TC_FIX_TYPE struct fix *
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#define TC_INIT_FIX_DATA(fixP) \
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do \
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{ \
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fixP->tc_fix_data = NULL; \
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} \
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while (0)
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/* read.c. */
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/* Extend GAS macro handling capability. */
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extern void nds32_macro_start (void);
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extern void nds32_macro_end (void);
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extern void nds32_macro_info (void *);
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extern void nds32_start_line_hook (void);
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extern void nds32_elf_section_change_hook (void);
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extern void md_begin (void);
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extern void md_end (void);
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extern int nds32_start_label (int, int);
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extern void nds32_cleanup (void);
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extern void nds32_flush_pending_output (void);
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extern void nds32_cons_align (int);
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extern void nds32_check_label (symbolS *);
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extern void nds32_frob_label (symbolS *);
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extern void nds32_pre_do_align (int, char *, int, int);
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extern void nds32_do_align (int);
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#define md_macro_start() nds32_macro_start ()
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#define md_macro_end() nds32_macro_end ()
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#define md_macro_info(args) nds32_macro_info (args)
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#define TC_START_LABEL(STR, NUL_CHAR, NEXT_CHAR) \
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(NEXT_CHAR == ':' && nds32_start_label (0, 0))
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#define tc_check_label(label) nds32_check_label (label)
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#define tc_frob_label(label) nds32_frob_label (label)
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#define md_end md_end
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#define md_start_line_hook() nds32_start_line_hook ()
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#define md_cons_align(n) nds32_cons_align (n)
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/* COLE: TODO: Review md_do_align. */
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#define md_do_align(N, FILL, LEN, MAX, LABEL) \
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nds32_pre_do_align (N, FILL, LEN, MAX); \
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if ((N) > 1 && (subseg_text_p (now_seg) \
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|| strncmp (now_seg->name, ".gcc_except_table", sizeof(".gcc_except_table") - 1) == 0)) \
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nds32_do_align (N); \
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goto LABEL;
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#define md_elf_section_change_hook() nds32_elf_section_change_hook ()
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#define md_flush_pending_output() nds32_flush_pending_output ()
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#define md_cleanup() nds32_cleanup ()
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#define LOCAL_LABELS_FB 1 /* Permit temporary numeric labels. */
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/* frags.c. */
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enum FRAG_ATTR
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{
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NDS32_FRAG_RELAXABLE = 0x1,
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NDS32_FRAG_RELAXED = 0x2,
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NDS32_FRAG_BRANCH = 0x4,
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NDS32_FRAG_LABEL = 0x8,
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NDS32_FRAG_FINAL = 0x10,
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NDS32_FRAG_RELAXABLE_BRANCH = 0x20,
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NDS32_FRAG_ALIGN = 0x40
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};
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struct nds32_frag_type
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{
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relax_substateT flag;
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struct nds32_opcode *opcode;
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uint32_t insn;
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/* To Save previous label fixup if existence. */
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struct fix *fixup;
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};
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extern void nds32_frag_init (fragS *);
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#define TC_FRAG_TYPE struct nds32_frag_type
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#define TC_FRAG_INIT(fragP, max_bytes) nds32_frag_init (fragP)
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/* CFI directive. */
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extern void nds32_elf_frame_initial_instructions (void);
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extern int tc_nds32_regname_to_dw2regnum (char *);
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#define TARGET_USE_CFIPOP 1
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#define DWARF2_DEFAULT_RETURN_COLUMN 30
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#define DWARF2_CIE_DATA_ALIGNMENT -4
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#define DWARF2_LINE_MIN_INSN_LENGTH 2
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#define tc_regname_to_dw2regnum tc_nds32_regname_to_dw2regnum
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#define tc_cfi_frame_initial_instructions tc_nds32_frame_initial_instructions
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/* COLE: TODO: Review These. They seem to be obsoleted. */
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#if 1
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#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
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((FIX)->fx_addsy == NULL \
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|| (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
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&& ! S_IS_WEAK ((FIX)->fx_addsy) \
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&& S_IS_DEFINED ((FIX)->fx_addsy) \
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&& ! S_IS_COMMON ((FIX)->fx_addsy)))
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#define TC_HANDLES_FX_DONE
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#endif
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/* Because linker may relax the code, assemble-time expression
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optimization is not allowed. */
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#define md_allow_eh_opt 0
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/* For nds32 relax. */
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enum nds32_br_range
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{
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BR_RANGE_S256 = 0,
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BR_RANGE_S16K,
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BR_RANGE_S64K,
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BR_RANGE_S16M,
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BR_RANGE_U4G,
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BR_RANGE_NUM
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};
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enum nds32_ramp
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{
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NDS32_CREATE_LABEL = 1,
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NDS32_RELAX = (1 << 1), /* Obsolete in the future. */
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NDS32_ORIGIN = (1 << 2),
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NDS32_INSN16 = (1 << 3),
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NDS32_PTR = (1 << 4),
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NDS32_ABS = (1 << 5),
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NDS32_HINT = (1 << 6),
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NDS32_FIX = (1 << 7),
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NDS32_ADDEND = (1 << 8),
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NDS32_SYM = (1 << 9),
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NDS32_PCREL = (1 << 10),
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NDS32_PTR_PATTERN = (1 << 11),
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NDS32_PTR_MULTIPLE = (1 << 12),
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NDS32_GROUP = (1 << 13),
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NDS32_SYM_DESC_MEM = (1 << 14)
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};
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typedef struct nds32_relax_fixup_info
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{
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int offset;
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int size;
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/* Reverse branch has to jump to the end of instruction pattern. */
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int ramp;
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enum bfd_reloc_code_real r_type;
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} nds32_relax_fixup_info_t;
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typedef struct nds32_cond_field
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{
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int offset;
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int bitpos; /* Register position. */
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int bitmask; /* Number of register bits. */
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bfd_boolean signed_extend;
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} nds32_cond_field_t;
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/* The max relaxation pattern is 20-bytes including the nop. */
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#define NDS32_MAXCHAR 20
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/* In current, the max extended number of instruction for one pseudo instruction
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is 6, but its number of relocation may be 12. */
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#define MAX_RELAX_NUM 6
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#define MAX_RELAX_FIX 12
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typedef struct nds32_relax_info
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{
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/* Opcode for the instruction. */
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const char *opcode;
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enum nds32_br_range br_range;
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nds32_cond_field_t cond_field[MAX_RELAX_NUM]; /* TODO: Reuse nds32_field? */
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/* Code sequences for different branch range. */
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uint32_t relax_code_seq[BR_RANGE_NUM][MAX_RELAX_NUM];
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nds32_cond_field_t relax_code_condition[BR_RANGE_NUM][MAX_RELAX_NUM];
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unsigned int relax_code_size[BR_RANGE_NUM];
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int relax_branch_isize[BR_RANGE_NUM];
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nds32_relax_fixup_info_t relax_fixup[BR_RANGE_NUM][MAX_RELAX_FIX];
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} relax_info_t;
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enum nds32_relax_hint_type
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{
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NDS32_RELAX_HINT_NONE = 0,
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NDS32_RELAX_HINT_LA_FLSI,
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NDS32_RELAX_HINT_LALS,
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NDS32_RELAX_HINT_LA_PLT,
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NDS32_RELAX_HINT_LA_GOT,
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NDS32_RELAX_HINT_LA_GOTOFF,
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NDS32_RELAX_HINT_TLS_START = 0x100,
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NDS32_RELAX_HINT_TLS_LE_LS,
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NDS32_RELAX_HINT_TLS_IE_LS,
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NDS32_RELAX_HINT_TLS_IE_LA,
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NDS32_RELAX_HINT_TLS_IEGP_LA,
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NDS32_RELAX_HINT_TLS_DESC_LS,
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};
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struct nds32_relax_hint_table
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{
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enum nds32_relax_hint_type main_type;
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unsigned int relax_code_size;
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uint32_t relax_code_seq[MAX_RELAX_NUM];
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nds32_relax_fixup_info_t relax_fixup[MAX_RELAX_FIX];
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};
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#endif /* TC_NDS32 */
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