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5dba6f05b7
libctf recently changed to make it possible to not emit the CTF variables section. Make this the default for ld: the variables section is a simple name -> type mapping, and the names can be quite voluminous. Nothing in the variables section appears in the symbol table, by definition, so GDB cannot make use of them: special-purpose projects that implement their own analogues of symbol table lookup can do so, but they'll need to tell the linker to emit the variables section after all. The new --ctf-variables option does this. The --ctf-share-types option (valid values "share-duplicated" and "share-unconflicted") allow the caller to specify the CTF link mode. Most users will want share-duplicated, since it allows for more convenient debugging: but very large projects composed of many decoupled components may want to use share-unconflicted mode, which places types that appear in only one TU into per-TU dicts. (They may also want to relink the CTF using the ctf_link API and cu-mapping, to make their "components" larger than a single TU. Right now the linker does not expose the CU-mapping machinery. Perhaps it should in future to make this use case easier.) For now, giving the linker the ability to emit share-duplicated CTF lets us add testcases for that mode to the testsuite. ld/ * ldlex.h (option_values) <OPTION_CTF_VARIABLES, OPTION_NO_CTF_VARIABLES, OPTION_CTF_SHARE_TYPES>: New. * ld.h (ld_config_type) <ctf_variables, ctf_share_duplicated>: New fields. * ldlang.c (lang_merge_ctf): Use them. * lexsup.c (ld_options): Add ctf-variables, no-ctf-variables, ctf-share-types. (parse_args) <OPTION_CTF_VARIABLES, OPTION_NO_CTF_VARIABLES, OPTION_CTF_SHARE_TYPES>: New cases. * ld.texi: Document new options. * NEWS: Likewise.
199 lines
5.2 KiB
C
199 lines
5.2 KiB
C
/* ldlex.h -
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Copyright (C) 1991-2020 Free Software Foundation, Inc.
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This file is part of the GNU Binutils.
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This program 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 of the License, or
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(at your option) any later version.
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This program 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 this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef LDLEX_H
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#define LDLEX_H
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#include <stdio.h>
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/* Codes used for the long options with no short synonyms. 150 isn't
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special; it's just an arbitrary non-ASCII char value. */
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enum option_values
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{
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OPTION_ASSERT = 150,
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OPTION_CALL_SHARED,
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OPTION_CREF,
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OPTION_DEFSYM,
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OPTION_DEMANGLE,
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OPTION_DYNAMIC_LINKER,
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OPTION_NO_DYNAMIC_LINKER,
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OPTION_SYSROOT,
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OPTION_OUT_IMPLIB,
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OPTION_EB,
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OPTION_EL,
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OPTION_EMBEDDED_RELOCS,
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OPTION_EXPORT_DYNAMIC,
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OPTION_NO_EXPORT_DYNAMIC,
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OPTION_HELP,
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OPTION_IGNORE,
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OPTION_MAP,
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OPTION_NO_DEMANGLE,
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OPTION_NO_KEEP_MEMORY,
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OPTION_NO_WARN_MISMATCH,
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OPTION_NO_WARN_SEARCH_MISMATCH,
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OPTION_NOINHIBIT_EXEC,
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OPTION_NON_SHARED,
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OPTION_NO_WHOLE_ARCHIVE,
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OPTION_OFORMAT,
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OPTION_RELAX,
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OPTION_NO_RELAX,
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OPTION_RETAIN_SYMBOLS_FILE,
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OPTION_RPATH,
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OPTION_RPATH_LINK,
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OPTION_SHARED,
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OPTION_SONAME,
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OPTION_SORT_COMMON,
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OPTION_SORT_SECTION,
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OPTION_STATS,
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OPTION_SYMBOLIC,
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OPTION_SYMBOLIC_FUNCTIONS,
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OPTION_TASK_LINK,
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OPTION_TBSS,
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OPTION_TDATA,
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OPTION_TTEXT,
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OPTION_TTEXT_SEGMENT,
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OPTION_TRODATA_SEGMENT,
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OPTION_TLDATA_SEGMENT,
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OPTION_TRADITIONAL_FORMAT,
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OPTION_UR,
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OPTION_VERBOSE,
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OPTION_VERSION,
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OPTION_VERSION_SCRIPT,
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OPTION_VERSION_EXPORTS_SECTION,
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OPTION_DYNAMIC_LIST,
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OPTION_DYNAMIC_LIST_CPP_NEW,
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OPTION_DYNAMIC_LIST_CPP_TYPEINFO,
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OPTION_DYNAMIC_LIST_DATA,
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OPTION_EXPORT_DYNAMIC_SYMBOL,
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OPTION_EXPORT_DYNAMIC_SYMBOL_LIST,
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OPTION_WARN_COMMON,
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OPTION_WARN_CONSTRUCTORS,
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OPTION_WARN_FATAL,
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OPTION_NO_WARN_FATAL,
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OPTION_WARN_MULTIPLE_GP,
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OPTION_WARN_ONCE,
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OPTION_WARN_SECTION_ALIGN,
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OPTION_SPLIT_BY_RELOC,
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OPTION_SPLIT_BY_FILE ,
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OPTION_WHOLE_ARCHIVE,
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OPTION_ADD_DT_NEEDED_FOR_DYNAMIC,
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OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC,
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OPTION_ADD_DT_NEEDED_FOR_REGULAR,
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OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR,
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OPTION_WRAP,
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OPTION_FORCE_EXE_SUFFIX,
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OPTION_GC_SECTIONS,
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OPTION_NO_GC_SECTIONS,
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OPTION_PRINT_GC_SECTIONS,
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OPTION_NO_PRINT_GC_SECTIONS,
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OPTION_GC_KEEP_EXPORTED,
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OPTION_HASH_SIZE,
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OPTION_CHECK_SECTIONS,
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OPTION_NO_CHECK_SECTIONS,
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OPTION_NO_UNDEFINED,
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OPTION_INIT,
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OPTION_FINI,
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OPTION_SECTION_START,
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OPTION_UNIQUE,
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OPTION_TARGET_HELP,
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OPTION_ALLOW_SHLIB_UNDEFINED,
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OPTION_NO_ALLOW_SHLIB_UNDEFINED,
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OPTION_ALLOW_MULTIPLE_DEFINITION,
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OPTION_NO_UNDEFINED_VERSION,
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OPTION_DEFAULT_SYMVER,
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OPTION_DEFAULT_IMPORTED_SYMVER,
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OPTION_DISCARD_NONE,
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OPTION_SPARE_DYNAMIC_TAGS,
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OPTION_NO_DEFINE_COMMON,
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OPTION_NOSTDLIB,
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OPTION_NO_OMAGIC,
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OPTION_STRIP_DISCARDED,
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OPTION_NO_STRIP_DISCARDED,
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OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
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OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
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OPTION_PIE,
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OPTION_UNRESOLVED_SYMBOLS,
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OPTION_WARN_UNRESOLVED_SYMBOLS,
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OPTION_ERROR_UNRESOLVED_SYMBOLS,
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OPTION_WARN_TEXTREL,
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OPTION_WARN_ALTERNATE_EM,
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OPTION_REDUCE_MEMORY_OVERHEADS,
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#if BFD_SUPPORTS_PLUGINS
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OPTION_PLUGIN,
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OPTION_PLUGIN_OPT,
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#endif /* BFD_SUPPORTS_PLUGINS */
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OPTION_DEFAULT_SCRIPT,
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OPTION_PRINT_OUTPUT_FORMAT,
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OPTION_PRINT_SYSROOT,
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OPTION_IGNORE_UNRESOLVED_SYMBOL,
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OPTION_PUSH_STATE,
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OPTION_POP_STATE,
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OPTION_DISABLE_MULTIPLE_DEFS_ABS,
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OPTION_PRINT_MEMORY_USAGE,
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OPTION_REQUIRE_DEFINED_SYMBOL,
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OPTION_ORPHAN_HANDLING,
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OPTION_FORCE_GROUP_ALLOCATION,
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OPTION_PRINT_MAP_DISCARDED,
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OPTION_NO_PRINT_MAP_DISCARDED,
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OPTION_NON_CONTIGUOUS_REGIONS,
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OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS,
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OPTION_DEPENDENCY_FILE,
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OPTION_CTF_VARIABLES,
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OPTION_NO_CTF_VARIABLES,
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OPTION_CTF_SHARE_TYPES,
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};
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/* The initial parser states. */
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typedef enum input_enum {
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input_selected, /* We've set the initial state. */
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input_script,
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input_mri_script,
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input_version_script,
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input_dynamic_list,
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input_defsym
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} input_type;
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extern input_type parser_input;
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extern unsigned int lineno;
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extern const char *lex_string;
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/* In ldlex.l. */
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extern int yylex (void);
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extern void lex_push_file (FILE *, const char *, unsigned int);
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extern void lex_redirect (const char *, const char *, unsigned int);
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extern void ldlex_script (void);
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extern void ldlex_inputlist (void);
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extern void ldlex_mri_script (void);
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extern void ldlex_version_script (void);
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extern void ldlex_version_file (void);
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extern void ldlex_defsym (void);
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extern void ldlex_expression (void);
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extern void ldlex_both (void);
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extern void ldlex_popstate (void);
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extern const char* ldlex_filename (void);
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/* In lexsup.c. */
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extern int lex_input (void);
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extern void lex_unput (int);
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extern void parse_args (unsigned, char **);
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#endif
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