binutils-gdb/ld/ldlex.h

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/* ldlex.h -
Copyright (C) 1991-2024 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
(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
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
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#ifndef LDLEX_H
#define LDLEX_H
#include <stdio.h>
/* Codes used for the long options with no short synonyms. 150 isn't
special; it's just an arbitrary non-ASCII char value. */
enum option_values
{
OPTION_ASSERT = 150,
OPTION_CALL_SHARED,
OPTION_CREF,
OPTION_DEFSYM,
OPTION_DEMANGLE,
OPTION_DYNAMIC_LINKER,
Add --no-dynamic-linker option to ld, for static PIE use Inhibits output of .interp section in ELF executables. include/ * bfdlink.h (struct bfd_link_info): Add "nointerp" field. bfd/ * elflink.c (_bfd_elf_link_create_dynamic_sections): Don't create .interp when info->nointerp. (bfd_elf_size_dynamic_sections): Adjust assert. * elf32-arm.c (elf32_arm_size_dynamic_sections): Don't size .interp when info->nointerp. * elf32-bfin.c (elf32_bfinfdpic_size_dynamic_sections): Likewise. * elf32-cr16.c (_bfd_cr16_elf_size_dynamic_sections): Likewise. * elf32-cris.c (elf_cris_size_dynamic_sections): Likewise. * elf32-frv.c (elf32_frvfdpic_size_dynamic_sections): Likewise. * elf32-hppa.c (elf32_hppa_size_dynamic_sections): Likewise. * elf32-i370.c (i370_elf_size_dynamic_sections): Likewise. * elf32-i386.c (elf_i386_size_dynamic_sections): Likewise. * elf32-lm32.c (lm32_elf_size_dynamic_sections): Likewise. * elf32-m32r.c (m32r_elf_size_dynamic_sections): Likewise. * elf32-m68k.c (elf_m68k_size_dynamic_sections): Likewise. * elf32-metag.c (elf_metag_size_dynamic_sections): Likewise. * elf32-nds32.c (nds32_elf_size_dynamic_sections): Likewise. * elf32-nios2.c (nios2_elf32_size_dynamic_sections): Likewise. * elf32-or1k.c (or1k_elf_size_dynamic_sections): Likewise. * elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise. * elf32-s390.c (elf_s390_size_dynamic_sections): Likewise. * elf32-score.c (s3_bfd_score_elf_size_dynamic_sections): Likewise. * elf32-score7.c (s7_bfd_score_elf_size_dynamic_sections): Likewise. * elf32-sh.c (sh_elf_size_dynamic_sections): Likewise. * elf32-tic6x.c (elf32_tic6x_size_dynamic_sections): Likewise. * elf32-tilepro.c (tilepro_elf_size_dynamic_sections): Likewise. * elf32-vax.c (elf_vax_size_dynamic_sections): Likewise. * elf32-xtensa.c (elf_xtensa_size_dynamic_sections): Likewise. * elf64-alpha.c (elf64_alpha_size_dynamic_sections): Likewise. * elf64-hppa.c (elf64_hppa_size_dynamic_sections): Likewise. * elf64-ppc.c (ppc64_elf_size_dynamic_sections): Likewise. * elf64-s390.c (elf_s390_size_dynamic_sections): Likewise. * elf64-sh64.c (sh64_elf64_size_dynamic_sections): Likewise. * elf64-x86-64.c (elf_x86_64_size_dynamic_sections): Likewise. * elfnn-aarch64.c (elfNN_aarch64_size_dynamic_sections): Likewise. * elfnn-ia64.c (elfNN_ia64_size_dynamic_sections): Likewise. * elfxx-mips.c (_bfd_mips_elf_size_dynamic_sections): Likewise. * elfxx-sparc.c (_bfd_sparc_elf_size_dynamic_sections): Likewise. * elfxx-tilegx.c (tilegx_elf_size_dynamic_sections): Likewise. ld/ * ld.texinfo (--no-dynamic-linker): Document. * ldlex.h (enum option_values): Add OPTION_NO_DYNAMIC_LINKER. * lexsup.c (ld_options, parse_args): Handle --no-dynamic-linker.
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OPTION_NO_DYNAMIC_LINKER,
OPTION_SYSROOT,
Add support for creating ELF import libraries 2016-07-15 Thomas Preud'homme <thomas.preudhomme@arm.com> bfd/ * elf-bfd.h (elf_backend_filter_implib_symbols): Declare backend hook. (_bfd_elf_filter_global_symbols): Declare. * elf.c (_bfd_elf_filter_global_symbols): New function. * elflink.c (elf_filter_global_symbols): Likewise. (elf_output_implib): Likewise. (bfd_elf_final_link): Call above function, failing if it does. * elfxx-target.h (elf_backend_filter_implib_symbols): Define macro and default it to NULL. (elf_backend_copy_indirect_symbol): Fix spacing. (elf_backend_hide_symbol): Likewise. (elfNN_bed): Initialize elf_backend_filter_implib_symbols backend hook. include/ * bfdlink.h (struct bfd_link_info): Declare new ldscript_def and out_implib_bfd fields. 2016-07-15 Thomas Preud'homme <thomas.preudhomme@arm.com> Nick Clifton <nickc@redhat.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Open import library file for writing and initialize implib_bfd field of link_info structure. * emultempl/pe.em (pe_implib_filename): Remove variable declaration. (OPTION_IMPLIB_FILENAME): Remove macro definition. (gld${EMULATION_NAME}_add_options): Remove --out-implib option. (gld_${EMULATION_NAME}_list_options): Likewise. (gld${EMULATION_NAME}_handle_option): Likewise. (gld_${EMULATION_NAME}_finish): Use command_line.out_implib_filename instead of pe_implib_filename. * emultempl/pep.em (pep_implib_filename): Remove variable declaration. (OPTION_IMPLIB_FILENAME): Remove enumerator. (gld${EMULATION_NAME}_add_options): Remove --out-implib option. (gld_${EMULATION_NAME}_list_options): Likewise. (gld${EMULATION_NAME}_handle_option): Likewise. (gld_${EMULATION_NAME}_finish): Use command_line.out_implib_filename instead of pep_implib_filename. * ld.h (args_type): Declare new out_implib_filename field. * ld.texinfo (--out-implib): Move documentation to arch-independent part and rephrase to apply to ELF targets. * ldexp.c (exp_fold_tree_1): Set ldscript_def field to 1 for symbols defined in linker scripts. * ldlex.h (enum option_values): Declare new OPTION_OUT_IMPLIB enumerator. * lexsup.c (ld_options): Add entry for new --out-implib switch. (parse_args): Handle OPTION_OUT_IMPLIB case. * testsuite/ld-elf/elf.exp (Generate empty import library): New test. (Generate import library): Likewise. * testsuite/ld-elf/implib.s: Likewise. * testsuite/ld-elf/implib.rd: New file. * testsuite/ld-elf/empty-implib.out: Likewise
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OPTION_OUT_IMPLIB,
OPTION_EB,
OPTION_EL,
OPTION_EMBEDDED_RELOCS,
OPTION_EXPORT_DYNAMIC,
OPTION_NO_EXPORT_DYNAMIC,
OPTION_HELP,
OPTION_IGNORE,
OPTION_MAP,
OPTION_NO_DEMANGLE,
OPTION_NO_KEEP_MEMORY,
OPTION_NO_WARN_MISMATCH,
OPTION_NO_WARN_SEARCH_MISMATCH,
OPTION_NOINHIBIT_EXEC,
OPTION_NON_SHARED,
OPTION_NO_WHOLE_ARCHIVE,
OPTION_OFORMAT,
OPTION_RELAX,
OPTION_NO_RELAX,
OPTION_NO_SYMBOLIC,
OPTION_RETAIN_SYMBOLS_FILE,
OPTION_RPATH,
OPTION_RPATH_LINK,
OPTION_SHARED,
OPTION_SONAME,
OPTION_SORT_COMMON,
OPTION_SORT_SECTION,
OPTION_SECTION_ORDERING_FILE,
OPTION_STATS,
OPTION_SYMBOLIC,
OPTION_SYMBOLIC_FUNCTIONS,
OPTION_TASK_LINK,
OPTION_TBSS,
OPTION_TDATA,
OPTION_TTEXT,
OPTION_TTEXT_SEGMENT,
OPTION_TRODATA_SEGMENT,
OPTION_TLDATA_SEGMENT,
OPTION_TRADITIONAL_FORMAT,
OPTION_UR,
OPTION_VERBOSE,
OPTION_VERSION,
OPTION_VERSION_SCRIPT,
OPTION_VERSION_EXPORTS_SECTION,
OPTION_DYNAMIC_LIST,
OPTION_DYNAMIC_LIST_CPP_NEW,
OPTION_DYNAMIC_LIST_CPP_TYPEINFO,
OPTION_DYNAMIC_LIST_DATA,
ld: Add --export-dynamic-symbol and --export-dynamic-symbol-list --export-dynamic-symbol-list is like a dynamic list, but without the symbolic property for unspecified symbols. When creating an executable, --export-dynamic-symbol-list is treated like --dynamic-list. When creating a shared library, it is treated like --dynamic-list if -Bsymbolic or --dynamic-list are used, otherwise, it is ignored, so that references to matched symbols will not be bound to the definitions within the shared library. PR ld/25910 * NEWS: Mention --export-dynamic-symbol[-list]. * ld.texi: Document --export-dynamic-symbol[-list]. * ldgram.y: Pass current_dynamic_list_p to lang_append_dynamic_list. * ldlang.c (current_dynamic_list_p): New. (ang_append_dynamic_list): Updated to take a pointer to struct bfd_elf_dynamic_list * argument instead of using link_info.dynamic_list. (lang_append_dynamic_list_cpp_typeinfo): Pass &link_info.dynamic_list to ang_append_dynamic_list. (lang_append_dynamic_list_cpp_new): Likewise. * ldlang.h (current_dynamic_list_p): New. (lang_append_dynamic_list): Add a pointer to struct bfd_elf_dynamic_list * argument. * ldlex.h (option_values): Add OPTION_EXPORT_DYNAMIC_SYMBOL and OPTION_EXPORT_DYNAMIC_SYMBOL_LIST. * lexsup.c (ld_options): Add entries for OPTION_EXPORT_DYNAMIC_SYMBOL and OPTION_EXPORT_DYNAMIC_SYMBOL_LIST. (parse_args): Handle --export-dynamic-symbol and --export-dynamic-symbol-list. * testsuite/ld-dynamic/export-dynamic-symbol-1.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-2.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-glob.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-list-1.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-list-2.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-list-glob.d: New. * testsuite/ld-dynamic/export-dynamic-symbol.exp: New. * testsuite/ld-dynamic/export-dynamic-symbol.s: New. * testsuite/ld-dynamic/foo-bar.list: New. * testsuite/ld-dynamic/foo.list: New. * testsuite/ld-dynamic/foo.s: New. * testsuite/ld-dynamic/fstar.list: New. * testsuite/ld-elf/dlempty.list: New. * testsuite/ld-elf/shared.exp: Add tests for --export-dynamic-symbol and --export-dynamic-symbol-list.
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OPTION_EXPORT_DYNAMIC_SYMBOL,
OPTION_EXPORT_DYNAMIC_SYMBOL_LIST,
OPTION_WARN_COMMON,
OPTION_WARN_CONSTRUCTORS,
OPTION_WARN_FATAL,
OPTION_NO_WARN_FATAL,
OPTION_NO_WARNINGS,
OPTION_WARN_MULTIPLE_GP,
OPTION_WARN_ONCE,
OPTION_WARN_SECTION_ALIGN,
OPTION_SPLIT_BY_RELOC,
OPTION_SPLIT_BY_FILE ,
OPTION_WHOLE_ARCHIVE,
OPTION_ADD_DT_NEEDED_FOR_DYNAMIC,
OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC,
OPTION_ADD_DT_NEEDED_FOR_REGULAR,
OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR,
OPTION_WRAP,
OPTION_FORCE_EXE_SUFFIX,
OPTION_GC_SECTIONS,
OPTION_NO_GC_SECTIONS,
OPTION_PRINT_GC_SECTIONS,
OPTION_NO_PRINT_GC_SECTIONS,
OPTION_GC_KEEP_EXPORTED,
OPTION_HASH_SIZE,
OPTION_CHECK_SECTIONS,
OPTION_NO_CHECK_SECTIONS,
OPTION_NO_UNDEFINED,
OPTION_INIT,
OPTION_FINI,
OPTION_SECTION_START,
OPTION_UNIQUE,
OPTION_TARGET_HELP,
OPTION_ALLOW_SHLIB_UNDEFINED,
OPTION_NO_ALLOW_SHLIB_UNDEFINED,
OPTION_ALLOW_MULTIPLE_DEFINITION,
#if SUPPORT_ERROR_HANDLING_SCRIPT
OPTION_ERROR_HANDLING_SCRIPT,
#endif
OPTION_UNDEFINED_VERSION,
OPTION_NO_UNDEFINED_VERSION,
OPTION_DEFAULT_SYMVER,
OPTION_DEFAULT_IMPORTED_SYMVER,
OPTION_DISCARD_NONE,
OPTION_SPARE_DYNAMIC_TAGS,
OPTION_NO_DEFINE_COMMON,
OPTION_NOSTDLIB,
OPTION_NO_OMAGIC,
OPTION_STRIP_DISCARDED,
OPTION_NO_STRIP_DISCARDED,
OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
OPTION_PIE,
OPTION_NO_PIE,
OPTION_UNRESOLVED_SYMBOLS,
OPTION_WARN_UNRESOLVED_SYMBOLS,
OPTION_ERROR_UNRESOLVED_SYMBOLS,
OPTION_WARN_TEXTREL,
OPTION_WARN_ALTERNATE_EM,
OPTION_REDUCE_MEMORY_OVERHEADS,
ld: Limit cache size and add --max-cache-size=SIZE When link_info.keep_memory is true, linker caches the relocation information and symbol tables of input files in memory. When there are many input files with many relocations, we may run out of memory. Add --max-cache-size=SIZE to set the maximum cache size. bfd/ PR ld/18028 * bfd.c (bfd): Add alloc_size. * elf-bfd.h (_bfd_elf_link_info_read_relocs): New. * elf32-i386.c (elf_i386_check_relocs): Use _bfd_link_keep_memory. Update cache_size. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise. * elflink.c (_bfd_elf_link_read_relocs): Renamed to ... (_bfd_elf_link_info_read_relocs): This. Update cache_size. (_bfd_elf_link_read_relocs): New. (_bfd_elf_link_check_relocs): Call _bfd_elf_link_info_read_relocs instead of _bfd_elf_link_read_relocs. (elf_link_add_object_symbols): Likewise. (elf_link_input_bfd): Likewise. (init_reloc_cookie_rels): Likewise. (init_reloc_cookie): Update cache_size. Call _bfd_elf_link_info_read_relocs instead of _bfd_elf_link_read_relocs. (link_info_ok): New. (elf_gc_smash_unused_vtentry_relocs): Updated. Call _bfd_elf_link_info_read_relocs instead of _bfd_elf_link_read_relocs. (bfd_elf_gc_sections): Use link_info_ok. Pass &link_info_ok to elf_gc_smash_unused_vtentry_relocs. * libbfd-in.h (_bfd_link_keep_memory): New. * linker.c (_bfd_link_keep_memory): New. * opncls.c (bfd_alloc): Update alloc_size. * bfd-in2.h: Regenerated. * libbfd.h: Likewise. include/ PR ld/18028 * bfdlink.h (bfd_link_info): Add cache_size and max_cache_size. ld/ PR ld/18028 * NEWS: Mention --max-cache-size=SIZE. * ld.texi: Document --max-cache-size=SIZE. * ldlex.h (option_values): Add OPTION_MAX_CACHE_SIZE. * ldmain.c: (main): Set link_info.max_cache_size to -1. * lexsup.c (ld_options): Add --max-cache-size=SIZE. (parse_args): Support OPTION_MAX_CACHE_SIZE. * testsuite/ld-bootstrap/bootstrap.exp: Add test for --max-cache-size=-1.
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OPTION_MAX_CACHE_SIZE,
#if BFD_SUPPORTS_PLUGINS
OPTION_PLUGIN,
OPTION_PLUGIN_OPT,
OPTION_PLUGIN_SAVE_TEMPS,
#endif /* BFD_SUPPORTS_PLUGINS */
OPTION_DEFAULT_SCRIPT,
OPTION_PRINT_OUTPUT_FORMAT,
OPTION_PRINT_SYSROOT,
OPTION_IGNORE_UNRESOLVED_SYMBOL,
OPTION_PUSH_STATE,
OPTION_POP_STATE,
[MicroBlaze] PIC data text relative Andrew Sadek <andrew.sadek.se@gmail.com> A new implemented feature in GCC Microblaze that allows Position Independent Code to run using Data Text Relative addressing instead of using Global Offset Table. Its aim was to make 'PIC' more efficient and flexible as elf size excess performance overhead were noticed when using GOT due to the indirect addressing. include/ChangeLog: * bfdlink.h (Add flag): Add new flag @ 'bfd_link_info' struct. * elf/microblaze.h (Add 3 new relocations): R_MICROBLAZE_TEXTPCREL_64, R_MICROBLAZE_TEXTREL_64 and R_MICROBLAZE_TEXTREL_32_LO for relax function. bfd/ChangeLog: * bfd/reloc.c (2 new BFD relocations): BFD_RELOC_MICROBLAZE_64_TEXTPCREL & BFD_RELOC_MICROBLAZE_64_TEXTPCREL * bfd/bfd-in2.h: Regenerate * bfd/libbfd.h: Regenerate * bfd/elf32-microblaze.c (Handle new relocs): define 'HOWTO' of 3 new relocs and handle them in both relocate and relax functions. (microblaze_elf_reloc_type_lookup): add mapping between for new bfd relocs. (microblaze_elf_relocate_section): Handle new relocs in case of elf relocation. (microblaze_elf_relax_section): Handle new relocs for elf relaxation. gas/ChangeLog: * gas/config/tc-microblaze.c (Handle new relocs directives in assembler): Handle new relocs from compiler output. (imm_types): add new imm types for data text relative addressing TEXT_OFFSET, TEXT_PC_OFFSET (md_convert_frag): conversion for BFD_RELOC_MICROBLAZE_64_TEXTPCREL, BFD_RELOC_MICROBLAZE_64_TEXTPCREL (md_apply_fix): apply fix for BFD_RELOC_MICROBLAZE_64_TEXTPCREL, BFD_RELOC_MICROBLAZE_64_TEXTPCREL (md_estimate_size_before_relax): estimate size for BFD_RELOC_MICROBLAZE_64_TEXTPCREL, BFD_RELOC_MICROBLAZE_64_TEXTPCREL (tc_gen_reloc): generate relocations for BFD_RELOC_MICROBLAZE_64_TEXTPCREL, BFD_RELOC_MICROBLAZE_64_TEXTPCREL ld/ChangeLog: * ld/lexsup.c (Add 2 ld options): (ld_options): add disable-multiple-abs-defs @ 'ld_options' array (parse_args): parse new option and pass flag to 'link_info' struct. * ld/ldlex.h (Add enum): add new enum @ 'option_values' enum. * ld/ld.texinfo (Add new option): Add description for 'disable-multiple-abs-defs' * ld/main.c: Initialize flags with false @ 'main'. Handle disable-multiple-abs-defs @ 'mutiple_definition'.
2018-04-18 05:47:13 +08:00
OPTION_DISABLE_MULTIPLE_DEFS_ABS,
OPTION_PRINT_MEMORY_USAGE,
ld: Add '--require-defined' command line option. Add a new command line option '--require-defined' to the linker. This option operates identically to the '--undefined' option, except that if the symbol is not defined in the final output file then the linker will exit with an error. When making use of --gc-section, or just when trying to pull in parts of a library, it is not uncommon for a user to use the '--undefined' command line option to specify a symbol that the user then expects to be defined by one of the object files supplied to the link. However, if for any reason the symbol is not satisfied by an object provided to the link the user will be left with an undefined symbol in the output file, instead of a defined symbol. In some cases the above behaviour is what the user wants, in other cases though we can do better. The '--require-defined' option tries to fill this gap. The symbol passed to the '--require-defined' option is treated exactly as if the symbol was passed to '--undefined', however, before the linker exits a check is made that all symbols passed to '--require-defined' are actually defined, if any are not then the link will fail with an error. ld/ChangeLog: * ld.texinfo (Options): Document --require-defined option. * ldlang.c (struct require_defined_symbol): New structure. (require_defined_symbol_list): New variable. (ldlang_add_require_defined): New function. (ldlang_check_require_defined_symbols): New function. (lang_process): Check required symbols are defined. * ldlang.h (ldlang_add_require_defined): Declare. * ldlex.h (enum option_values): Add OPTION_REQUIRE_DEFINED_SYMBOL. * lexsup.c (ld_options): Add '--require-defined' entry. (parse_args): Handle '--require-defined' entry. * NEWS: Mention new '--require-defined' option. ld/testsuite/ChangeLog: * ld-undefined/require-defined-1.d: New file. * ld-undefined/require-defined-2.d: New file. * ld-undefined/require-defined-3.d: New file. * ld-undefined/require-defined-4.d: New file. * ld-undefined/require-defined-5.d: New file. * ld-undefined/require-defined.exp: New file. * ld-undefined/require-defined.s: New file.
2015-07-16 01:37:30 +08:00
OPTION_REQUIRE_DEFINED_SYMBOL,
ld: Extend options for altering orphan handling behaviour. Replace the options --warn-orphan and --no-warn-orphan with a single option --orphan-handling=MODE, where mode can be place, warn, error, and discard. Mode 'place' is the default, and is the current behaviour, placing the orphan section into a suitable output section. Mode 'warn' is the same as '--warn-orphan'. The orphan is also placed using the same algorithm as for 'place'. Mode 'error' is the same as '--warn-orphan' and '--fatal-warnings'. Mode 'discard' assigns all output sections to the /DISCARD/ section. ld/ChangeLog: * ld.h (enum orphan_handling_enum): New. (ld_config_type): Remove warn_orphan, add orphan_handling. * ldemul.c (ldemul_place_orphan): Remove warning about orphan sections. * ldlang.c (ldlang_place_orphan): New function. (lang_place_orphans): Call ldlang_place_orphan. * ldlex.h (enum option_values): Remove OPTION_WARN_ORPHAN and OPTION_NO_WARN_ORPHAN, add OPTION_ORPHAN_HANDLING. * lexsup.c (ld_options): Remove 'warn-orphan' and 'no-warn-orphan', add 'orphan-handling'. (parse_args): Remove handling for OPTION_WARN_ORPHAN and OPTION_NO_WARN_ORPHAN, add handling for OPTION_ORPHAN_HANDLING. * NEWS: Replace text about --warn-orphan with --orphan-handling. * ld.texinfo (Options): Remove --warn-orphan entry and add entry on --orphan-handling. (Orphan Sections): Add reference to relevant command line options. ld/testsuite/ChangeLog: * ld-elf/elf.exp: Switch to rely on run_dump_test. * ld-elf/orphan-5.l: Update expected output. * ld-elf/orphan-5.d: New file. * ld-elf/orphan-6.d: New file. * ld-elf/orphan-6.l: New file. * ld-elf/orphan-7.d: New file. * ld-elf/orphan-7.map: New file. * ld-elf/orphan-8.d: New file. * ld-elf/orphan-8.map: New file.
2015-07-29 02:20:37 +08:00
OPTION_ORPHAN_HANDLING,
ld: Allow section groups to be resolved as part of a relocatable link This commit adds a new linker feature: the ability to resolve section groups as part of a relocatable link. Currently section groups are automatically resolved when performing a final link, and are carried through when performing a relocatable link. By carried through this means that one copy of each section group (from all the copies that might be found in all the input files) is placed into the output file. Sections that are part of a section group will not match input section specifiers within a linker script and are forcibly kept as separate sections. There is a slight resemblance between section groups and common section. Like section groups, common sections are carried through when performing a relocatable link, and resolved (allocated actual space) only at final link time. However, with common sections there is an ability to force the linker to allocate space for the common sections when performing a relocatable link, there's currently no such ability for section groups. This commit adds such a mechanism. This new facility can be accessed in two ways, first there's a command line switch --force-group-allocation, second, there's a new linker script command FORCE_GROUP_ALLOCATION. If one of these is used when performing a relocatable link then the linker will resolve the section groups as though it were performing a final link, the section group will be deleted, and the members of the group will be placed like normal input sections. If there are multiple copies of the group (from multiple input files) then only one copy of the group members will be placed, the duplicate copies will be discarded. Unlike common sections that have the --no-define-common command line flag, and INHIBIT_COMMON_ALLOCATION linker script command there is no way to prevent group resolution during a final link, this is because the ELF gABI specifically prohibits the presence of SHT_GROUP sections in a fully linked executable. However, the code as written should make adding such a feature trivial, setting the new resolve_section_groups flag to false during a final link should work as you'd expect. bfd/ChangeLog: * elf.c (_bfd_elf_make_section_from_shdr): Don't initially mark SEC_GROUP sections as SEC_EXCLUDE. (bfd_elf_set_group_contents): Replace use of abort with an assert. (assign_section_numbers): Use resolve_section_groups flag instead of relocatable link type. (_bfd_elf_init_private_section_data): Use resolve_section_groups flag instead of checking the final_link flag for part of the checks in here. Fix white space as a result. * elflink.c (elf_link_input_bfd): Use resolve_section_groups flag instead of relocatable link type. (bfd_elf_final_link): Likewise. include/ChangeLog: * bfdlink.h (struct bfd_link_info): Add new resolve_section_groups flag. ld/ChangeLog: * ld.h (struct args_type): Add force_group_allocation field. * ldgram.y: Add support for FORCE_GROUP_ALLOCATION. * ldlex.h: Likewise. * ldlex.l: Likewise. * lexsup.c: Likewise. * ldlang.c (unique_section_p): Check resolve_section_groups flag not the relaxable link flag. (lang_add_section): Discard section groups when we're resolving groups. Clear the SEC_LINK_ONCE flag if we're resolving section groups. * ldmain.c (main): Initialise resolve_section_groups flag in link_info based on command line flags. * testsuite/ld-elf/group11.d: New file. * testsuite/ld-elf/group12.d: New file. * testsuite/ld-elf/group12.ld: New file. * NEWS: Mention new features. * ld.texinfo (Options): Document --force-group-allocation. (Miscellaneous Commands): Document FORCE_GROUP_ALLOCATION.
2017-03-23 01:27:49 +08:00
OPTION_FORCE_GROUP_ALLOCATION,
OPTION_PRINT_MAP_DISCARDED,
OPTION_NO_PRINT_MAP_DISCARDED,
OPTION_PRINT_MAP_LOCALS,
OPTION_NO_PRINT_MAP_LOCALS,
Add support for non-contiguous memory regions 2020-01-06 Christophe Lyon <christophe.lyon@linaro.org> bfd/ * bfd-in2.h: Regenerate. * section.c (asection): Add already_assigned field. (BFD_FAKE_SECTION): Add default initializer for it. * ecoff.c (bfd_debug_section): Initialize already_assigned field. * elf32-arm.c (arm_build_one_stub): Add support for non_contiguous_regions. * elf32-csky.c (csky_build_one_stub): Likewise. * elf32-hppa.c (hppa_build_one_stub): Likewise. * elf32-m68hc11.c (m68hc11_elf_build_one_stub): Likewise. * elf32-m68hc12.c (m68hc12_elf_build_one_stub): Likewise. * elf32-metag.c (metag_build_one_stub): Likewise. * elf32-nios2.c (nios2_build_one_stub): Likewise. * elf64-ppc.c (ppc_build_one_stub): Likewise. (ppc_size_one_stub): Likewise. * elfnn-aarch64.c (aarch64_build_one_stub): Likewise. * elflink.c (elf_link_input_bfd): Likewise. include/ * bfdlink.h (bfd_link_info): Add non_contiguous_regions and non_contiguous_regions_warnings fields. ld/ * ldlang.c (lang_add_section): Add support for non_contiguous_regions. (size_input_section): Likewise. (lang_size_sections_1): Likewise. (process_insert_statements): Likewise. * ldlex.h (option_values): Add OPTION_NON_CONTIGUOUS_REGIONS and OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS. * lexsup.c (ld_options): Add entries for --enable-non-contiguous-regions and --enable-non-contiguous-regions-warnings. (parse_args): Handle it. * NEWS: Add --enable-non-contiguous-regions and --enable-non-contiguous-regions-warnings. * ld.texi: Add --enable-non-contiguous-regions and --enable-non-contiguous-regions-warnings documentation. * emultempl/armelf.em (elf32_arm_add_stub_section): Add SEC_LINKER_CREATED flag. * emultempl/xtensaelf.em (ld_build_required_section_dependence): Emit an error when --enable-non-contiguous-regions is used. * testsuite/ld-elf/non-contiguous.d: New. * testsuite/ld-elf/non-contiguous.ld: New. * testsuite/ld-elf/non-contiguous.s: New. * testsuite/ld-arm/arm-elf.exp: Run the new tests. * testsuite/ld-arm/arm-elf/non-contiguous-arm.s: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm2.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm3.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm4.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm4.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm5.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm5.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm6.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm6.ld: New. * testsuite/ld-powerpc/powerpc.exp: Run new tests. * testsuite/ld-powerpc/non-contiguous-powerpc.d: New. * testsuite/ld-powerpc/non-contiguous-powerpc.ld: New. * testsuite/ld-powerpc/non-contiguous-powerpc.sd: New. * testsuite/ld-powerpc/non-contiguous-powerpc64.d: New.
2019-11-25 16:55:37 +08:00
OPTION_NON_CONTIGUOUS_REGIONS,
OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS,
OPTION_DEPENDENCY_FILE,
ld: new options --ctf-variables and --ctf-share-types 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.
2020-06-06 06:18:06 +08:00
OPTION_CTF_VARIABLES,
OPTION_NO_CTF_VARIABLES,
OPTION_CTF_SHARE_TYPES,
Add ability to change linker warning messages into errors when reporting executable stacks and/or executable segments. include * bfdlink.h (struct bfd_link_info): Update descriptions of the 'execstack', 'noexecstack' and 'warn_execstack' fields. Add 'error_exectack' and 'warn_is_error_for_rwx_segments' fields. bfd * elf.c (assign_file_positions_except_relocs): Turn warnings about executable segments into errors if so requested. * elflink.c (bfd_elf_size_dynamic_sections): Turn warnings about executable stacks into errors if so requested. ld * ldlex.h (enum option_values): Add OPTION_ERROR_EXECSTACK, OPTION_NO_ERROR_EXECSTACK, OPTION_WARN_EXECSTACK_OBJECTS, OPTION_ERROR_RWX_SEGMENTS and OPTION_NO_ERROR_RWX_SEGMENTS. (struct ld_option): Add new long options. (parse_args): Parse new long options. (elf_static_list_options): Display the new options. * ld.texi: Document the new command line options. * configure.ac (error-execstack): New configuration option. (error-rwx-segments): New configuration option. * emultempl/elf.em (_before_parse): Initialse the new linkinfo fields. * NEWS: Mention the new features. * config.in: Regenerate. * configure: Regenerate. * testsuite/ld-elf/commonpage2.d: Disable errors for RWX segments and/or executable stacks. * testsuite/ld-elf/elf.exp: Likewise. * testsuite/ld-elf/header.d: Likewise. * testsuite/ld-elf/loadaddr1.d: Likewise. * testsuite/ld-elf/loadaddr2.d: Likewise. * testsuite/ld-elf/maxpage4.d: Likewise. * testsuite/ld-elf/nobits-1.d: Likewise. * testsuite/ld-elf/note-1.d: Likewise. * testsuite/ld-elf/orphan-10.d: Likewise. * testsuite/ld-elf/orphan-11.d: Likewise. * testsuite/ld-elf/orphan-12.d: Likewise. * testsuite/ld-elf/orphan-5.d: Likewise. * testsuite/ld-elf/orphan-7.d: Likewise. * testsuite/ld-elf/orphan-8.d: Likewise. * testsuite/ld-elf/orphan-9.d: Likewise. * testsuite/ld-elf/orphan-region.d: Likewise. * testsuite/ld-elf/orphan.d: Likewise. * testsuite/ld-elf/pr19539.d: Likewise. * testsuite/ld-elf/pr26256-1a.d: Likewise. * testsuite/ld-elf/pr26907.d: Likewise. * testsuite/ld-elf/pr28597.d: Likewise. * testsuite/ld-elf/retain2.d: Likewise. * testsuite/ld-elf/shared.exp: Likewise. * testsuite/ld-elf/size-1.d: Likewise. * testsuite/ld-elf/textaddr7.d: Likewise. * testsuite/ld-elf/warn1.d: Likewise. * testsuite/ld-elf/warn2.d: Likewise. * testsuite/ld-i386/discarded1.d: Likewise. * testsuite/ld-i386/pr19175.d: Likewise. * testsuite/ld-i386/pr19539.d: Likewise. * testsuite/ld-i386/pr23189.d: Likewise. * testsuite/ld-plugin/lto-3r.d: Likewise. * testsuite/ld-plugin/lto-5r.d: Likewise. * testsuite/ld-plugin/lto.exp: Likewise. * testsuite/ld-powerpc/ppc476-shared.d: Likewise. * testsuite/ld-powerpc/ppc476-shared2.d: Likewise. * testsuite/ld-powerpc/pr28827-2.d: Likewise. * testsuite/ld-s390/s390.exp: Likewise. * testsuite/ld-scripts/align2a.d: Likewise. * testsuite/ld-scripts/align2b.d: Likewise. * testsuite/ld-scripts/align5.d: Likewise. * testsuite/ld-scripts/alignof.exp: Likewise. * testsuite/ld-scripts/crossref.exp: Likewise. * testsuite/ld-scripts/defined2.d: Likewise. * testsuite/ld-scripts/defined3.d: Likewise. * testsuite/ld-scripts/defined5.d: Likewise. * testsuite/ld-scripts/pr14962.d: Likewise. * testsuite/ld-scripts/pr18963.d: Likewise. * testsuite/ld-scripts/pr20302.d: Likewise. * testsuite/ld-scripts/print-memory-usage.exp: Likewise. * testsuite/ld-scripts/rgn-at1.d: Likewise. * testsuite/ld-scripts/rgn-at10.d: Likewise. * testsuite/ld-scripts/rgn-at4.d: Likewise. * testsuite/ld-scripts/rgn-at6.d: Likewise. * testsuite/ld-scripts/rgn-at8.d: Likewise. * testsuite/ld-scripts/rgn-at9.d: Likewise. * testsuite/ld-scripts/rgn-over1.d: Likewise. * testsuite/ld-scripts/rgn-over2.d: Likewise. * testsuite/ld-scripts/rgn-over4.d: Likewise. * testsuite/ld-scripts/rgn-over5.d: Likewise. * testsuite/ld-scripts/rgn-over6.d: Likewise. * testsuite/ld-scripts/script.exp: Likewise. * testsuite/ld-scripts/sizeof.exp: Likewise. * testsuite/ld-scripts/sort-file.d: Likewise. * testsuite/ld-x86-64/discarded1.d: Likewise. * testsuite/ld-x86-64/pr19175.d: Likewise. * testsuite/ld-x86-64/pr19539a.d: Likewise. * testsuite/ld-x86-64/pr19539b.d: Likewise. * testsuite/ld-x86-64/pr23189.d: Likewise.
2023-11-10 19:37:27 +08:00
OPTION_ERROR_EXECSTACK,
OPTION_NO_ERROR_EXECSTACK,
OPTION_WARN_EXECSTACK_OBJECTS,
OPTION_WARN_EXECSTACK,
OPTION_NO_WARN_EXECSTACK,
OPTION_WARN_RWX_SEGMENTS,
OPTION_NO_WARN_RWX_SEGMENTS,
Add ability to change linker warning messages into errors when reporting executable stacks and/or executable segments. include * bfdlink.h (struct bfd_link_info): Update descriptions of the 'execstack', 'noexecstack' and 'warn_execstack' fields. Add 'error_exectack' and 'warn_is_error_for_rwx_segments' fields. bfd * elf.c (assign_file_positions_except_relocs): Turn warnings about executable segments into errors if so requested. * elflink.c (bfd_elf_size_dynamic_sections): Turn warnings about executable stacks into errors if so requested. ld * ldlex.h (enum option_values): Add OPTION_ERROR_EXECSTACK, OPTION_NO_ERROR_EXECSTACK, OPTION_WARN_EXECSTACK_OBJECTS, OPTION_ERROR_RWX_SEGMENTS and OPTION_NO_ERROR_RWX_SEGMENTS. (struct ld_option): Add new long options. (parse_args): Parse new long options. (elf_static_list_options): Display the new options. * ld.texi: Document the new command line options. * configure.ac (error-execstack): New configuration option. (error-rwx-segments): New configuration option. * emultempl/elf.em (_before_parse): Initialse the new linkinfo fields. * NEWS: Mention the new features. * config.in: Regenerate. * configure: Regenerate. * testsuite/ld-elf/commonpage2.d: Disable errors for RWX segments and/or executable stacks. * testsuite/ld-elf/elf.exp: Likewise. * testsuite/ld-elf/header.d: Likewise. * testsuite/ld-elf/loadaddr1.d: Likewise. * testsuite/ld-elf/loadaddr2.d: Likewise. * testsuite/ld-elf/maxpage4.d: Likewise. * testsuite/ld-elf/nobits-1.d: Likewise. * testsuite/ld-elf/note-1.d: Likewise. * testsuite/ld-elf/orphan-10.d: Likewise. * testsuite/ld-elf/orphan-11.d: Likewise. * testsuite/ld-elf/orphan-12.d: Likewise. * testsuite/ld-elf/orphan-5.d: Likewise. * testsuite/ld-elf/orphan-7.d: Likewise. * testsuite/ld-elf/orphan-8.d: Likewise. * testsuite/ld-elf/orphan-9.d: Likewise. * testsuite/ld-elf/orphan-region.d: Likewise. * testsuite/ld-elf/orphan.d: Likewise. * testsuite/ld-elf/pr19539.d: Likewise. * testsuite/ld-elf/pr26256-1a.d: Likewise. * testsuite/ld-elf/pr26907.d: Likewise. * testsuite/ld-elf/pr28597.d: Likewise. * testsuite/ld-elf/retain2.d: Likewise. * testsuite/ld-elf/shared.exp: Likewise. * testsuite/ld-elf/size-1.d: Likewise. * testsuite/ld-elf/textaddr7.d: Likewise. * testsuite/ld-elf/warn1.d: Likewise. * testsuite/ld-elf/warn2.d: Likewise. * testsuite/ld-i386/discarded1.d: Likewise. * testsuite/ld-i386/pr19175.d: Likewise. * testsuite/ld-i386/pr19539.d: Likewise. * testsuite/ld-i386/pr23189.d: Likewise. * testsuite/ld-plugin/lto-3r.d: Likewise. * testsuite/ld-plugin/lto-5r.d: Likewise. * testsuite/ld-plugin/lto.exp: Likewise. * testsuite/ld-powerpc/ppc476-shared.d: Likewise. * testsuite/ld-powerpc/ppc476-shared2.d: Likewise. * testsuite/ld-powerpc/pr28827-2.d: Likewise. * testsuite/ld-s390/s390.exp: Likewise. * testsuite/ld-scripts/align2a.d: Likewise. * testsuite/ld-scripts/align2b.d: Likewise. * testsuite/ld-scripts/align5.d: Likewise. * testsuite/ld-scripts/alignof.exp: Likewise. * testsuite/ld-scripts/crossref.exp: Likewise. * testsuite/ld-scripts/defined2.d: Likewise. * testsuite/ld-scripts/defined3.d: Likewise. * testsuite/ld-scripts/defined5.d: Likewise. * testsuite/ld-scripts/pr14962.d: Likewise. * testsuite/ld-scripts/pr18963.d: Likewise. * testsuite/ld-scripts/pr20302.d: Likewise. * testsuite/ld-scripts/print-memory-usage.exp: Likewise. * testsuite/ld-scripts/rgn-at1.d: Likewise. * testsuite/ld-scripts/rgn-at10.d: Likewise. * testsuite/ld-scripts/rgn-at4.d: Likewise. * testsuite/ld-scripts/rgn-at6.d: Likewise. * testsuite/ld-scripts/rgn-at8.d: Likewise. * testsuite/ld-scripts/rgn-at9.d: Likewise. * testsuite/ld-scripts/rgn-over1.d: Likewise. * testsuite/ld-scripts/rgn-over2.d: Likewise. * testsuite/ld-scripts/rgn-over4.d: Likewise. * testsuite/ld-scripts/rgn-over5.d: Likewise. * testsuite/ld-scripts/rgn-over6.d: Likewise. * testsuite/ld-scripts/script.exp: Likewise. * testsuite/ld-scripts/sizeof.exp: Likewise. * testsuite/ld-scripts/sort-file.d: Likewise. * testsuite/ld-x86-64/discarded1.d: Likewise. * testsuite/ld-x86-64/pr19175.d: Likewise. * testsuite/ld-x86-64/pr19539a.d: Likewise. * testsuite/ld-x86-64/pr19539b.d: Likewise. * testsuite/ld-x86-64/pr23189.d: Likewise.
2023-11-10 19:37:27 +08:00
OPTION_ERROR_RWX_SEGMENTS,
OPTION_NO_ERROR_RWX_SEGMENTS,
Add --enable-linker-version option to bfd linker to add an entry in the .comment section. PR 30187 * NEWS: Mention the new feature. * ld.texi: Document the new feature. * ldgram.y: Handle LINKER_VERSION token. * ldlang.c (lang_add_version): New function. (enable_linker_version): New global variable. * ldlang.h (land_add_version): Prototype. (enable_linker_version): Export. * ldlex.h (OPTION_ENABLE_LINKER_VERSION): Define. (OPTION_DISABLE_LINKER_VERSION): Define. * ldlex.l (LINKER_VERSION): Add token. * lexsup.c (ld_options): Add --enable-linker-version and --disable-linker-version. (parse_args): Handle the new options. * scripttempl/arclinux.sc: Remove stabs and comment sections and replace with inclusion of misc-sections.sc * scripttempl/avr.sc: Likewise. * scripttempl/dlx.sc: Likewise. * scripttempl/elf.sc: Likewise. * scripttempl/elf32cr16.sc: Likewise. * scripttempl/elf32crx.sc: Likewise. * scripttempl/elf32msp430.sc: Likewise. * scripttempl/elf64bpf.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Likewise. * scripttempl/elfarcv2.sc: Likewise. * scripttempl/elfd10v.sc: Likewise. * scripttempl/elfd30v.sc: Likewise. * scripttempl/elfm68hc11.sc: Likewise. * scripttempl/elfm68hc12.sc: Likewise. * scripttempl/elfm9s12z.sc: Likewise. * scripttempl/elfmicroblaze.sc: Likewise. * scripttempl/elfxgate.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/epiphany_4x4.sc: Likewise. * scripttempl/ft32.sc: Likewise. * scripttempl/ip2k.sc: Likewise. * scripttempl/iq2000.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/pru.sc: Likewise. * scripttempl/v850.sc: Likewise. * scripttempl/v850_rh850.sc: Likewise. * scripttempl/visium.sc: Likewise. * scripttempl/xstormy16.sc: Likewise. * scripttempl/z80.sc: Likewise. * testsuite/ld-scripts/script.exp: Run new tests. * scripttempl/misc-sections.sc: New file. * testsuite/ld-scripts/ld-version-2.d: New file. * testsuite/ld-scripts/ld-version.d: New file. * testsuite/ld-scripts/ld-version.t: New file.
2023-03-15 22:27:21 +08:00
OPTION_ENABLE_LINKER_VERSION,
OPTION_DISABLE_LINKER_VERSION,
OPTION_REMAP_INPUTS,
OPTION_REMAP_INPUTS_FILE,
ld: Put all emulation options in ldlex.h For each command line option, parse_args() calls ldemul_parse_args() to check if the command line option is an emulation option. But when there is a conflict between the emulation option value and the default option value, the default command line option will be processed as if the emulation option is used. Remove PARSE_AND_LIST_PROLOGUE and move all emulation options to ldlex.h to avoid conflicts. PR ld/31247 * ldlex.h (option_values): Add all emulation options. * emulparams/elf32mcore.sh (PARSE_AND_LIST_PROLOGUE): Removed. * emulparams/plt_unwind.sh (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/aarch64elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/alphaelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/armelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/avrelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/bfin.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/cskyelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/hppaelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/ia64elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/m68hc1xelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/m68kelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/metagelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/mipself.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/nds32elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/nto.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/ppc32elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/ppc64elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/riscvelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/rxelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/s390.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/scoreelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/spuelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/tic6xdsbt.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/vxworks.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/aix.em: Include "ldlex.h". (OPTION_XXX): Removed. (gld${EMULATION_NAME}_read_file): Replace lineno with linenumber. * emultempl/beos.em (OPTION_XXX): Removed. * emultempl/elf.em: Include "ldlex.h". Don't check PARSE_AND_LIST_PROLOGUE. (OPTION_XXX): Removed. * emultempl/msp430.em: Include "ldlex.h". (OPTION_XXX): Removed. * emultempl/pe.em (OPTION_XXX): Removed. * emultempl/pep.em (OPTION_XXX): Likewise. * emultempl/ticoff.em: Include "ldlex.h". (OPTION_XXX): Removed. * emultempl/vms.em: Include "ldlex.h". (OPTION_XXX): Removed. * emultempl/xtensaelf.em (elf32xtensa_size_opt, elf32xtensa_no_literal_movement, elf32xtensa_abi): Moved out of PARSE_AND_LIST_PROLOGUE. (PARSE_AND_LIST_PROLOGUE): Removed.
2024-01-17 23:46:37 +08:00
/* Used by emultempl/elf.em, emultempl/pe.em and emultempl/pep.em. */
OPTION_BUILD_ID,
OPTION_EXCLUDE_LIBS,
/* Used by emulparams/elf32mcore.sh, emultempl/beos.em, emultempl/pe.em
and emultempl/pep.em. */
OPTION_BASE_FILE,
/* Used by emultempl/ppc32elf.em and emultempl/ppc64elf.em. */
OPTION_NO_INLINE_OPT,
OPTION_NO_PLT_ALIGN,
OPTION_NO_STUBSYMS,
OPTION_NO_TLS_GET_ADDR_OPT,
OPTION_NO_TLS_OPT,
OPTION_PLT_ALIGN,
OPTION_STUBSYMS,
/* Used by emultempl/armelf.em and emultempl/tic6xdsbt.em. */
OPTION_NO_MERGE_EXIDX_ENTRIES,
/* Used by emultempl/aarch64elf.em and emultempl/armelf.em. */
OPTION_PIC_VENEER,
OPTION_NO_ENUM_SIZE_WARNING,
OPTION_NO_WCHAR_SIZE_WARNING,
/* Used by emultempl/armelf.em and emultempl/pe.em. */
OPTION_THUMB_ENTRY,
/* Used by emultempl/beos.em, emultempl/nto.em, emultempl/pe.em and
emultempl/pep.em. */
OPTION_STACK,
/* Used by emultempl/aarch64elf.em, emultempl/armelf.em,
emultempl/cskyelf.em, emultempl/hppaelf.em, emultempl/metagelf.em
and emultempl/ppc64elf.em. */
OPTION_STUBGROUP_SIZE,
/* Used by emulparams/plt_unwind.sh. */
OPTION_LD_GENERATED_UNWIND_INFO,
OPTION_NO_LD_GENERATED_UNWIND_INFO,
/* Used by emultempl/aarch64elf.em. */
OPTION_FIX_ERRATUM_835769,
OPTION_FIX_ERRATUM_843419,
OPTION_NO_APPLY_DYNAMIC_RELOCS,
/* Used by emultempl/aix.em. */
OPTION_AUTOIMP,
OPTION_ERNOTOK,
OPTION_EROK,
OPTION_EXPALL,
OPTION_EXPFULL,
OPTION_EXPORT,
OPTION_IMPORT,
OPTION_INITFINI,
OPTION_LOADMAP,
OPTION_MAXDATA,
OPTION_MAXSTACK,
OPTION_MODTYPE,
OPTION_NOAUTOIMP,
OPTION_NOEXPALL,
OPTION_NOEXPFULL,
OPTION_NOSTRCMPCT,
OPTION_PD,
OPTION_PT,
OPTION_STRCMPCT,
OPTION_UNIX,
OPTION_32,
OPTION_64,
OPTION_LIBPATH,
OPTION_NOLIBPATH,
/* Used by emultempl/alphaelf.em. */
OPTION_TASO,
OPTION_SECUREPLT,
OPTION_NO_SECUREPLT,
/* Used by emultempl/armelf.em. */
OPTION_BE8,
OPTION_TARGET1_REL,
OPTION_TARGET1_ABS,
OPTION_TARGET2,
OPTION_FIX_V4BX,
OPTION_USE_BLX,
OPTION_VFP11_DENORM_FIX,
OPTION_FIX_V4BX_INTERWORKING,
OPTION_FIX_CORTEX_A8,
OPTION_NO_FIX_CORTEX_A8,
OPTION_FIX_ARM1176,
OPTION_NO_FIX_ARM1176,
OPTION_LONG_PLT,
OPTION_STM32L4XX_FIX,
OPTION_CMSE_IMPLIB,
OPTION_IN_IMPLIB,
/* Used by emultempl/avrelf.em. */
OPTION_NO_CALL_RET_REPLACEMENT,
OPTION_PMEM_WRAP_AROUND,
OPTION_NO_STUBS,
OPTION_DEBUG_STUBS,
OPTION_DEBUG_RELAX,
/* Used by emultempl/bfin.em. */
OPTION_CODE_IN_L1,
OPTION_DATA_IN_L1,
/* Used by emultempl/cskyelf.em. */
OPTION_BRANCH_STUB,
OPTION_NO_BRANCH_STUB,
/* Used by emultempl/elf.em. */
OPTION_DISABLE_NEW_DTAGS,
OPTION_ENABLE_NEW_DTAGS,
OPTION_GROUP,
OPTION_EH_FRAME_HDR,
OPTION_NO_EH_FRAME_HDR,
OPTION_HASH_STYLE,
OPTION_PACKAGE_METADATA,
OPTION_AUDIT,
OPTION_COMPRESS_DEBUG,
OPTION_ROSEGMENT,
OPTION_NO_ROSEGMENT,
ld: Put all emulation options in ldlex.h For each command line option, parse_args() calls ldemul_parse_args() to check if the command line option is an emulation option. But when there is a conflict between the emulation option value and the default option value, the default command line option will be processed as if the emulation option is used. Remove PARSE_AND_LIST_PROLOGUE and move all emulation options to ldlex.h to avoid conflicts. PR ld/31247 * ldlex.h (option_values): Add all emulation options. * emulparams/elf32mcore.sh (PARSE_AND_LIST_PROLOGUE): Removed. * emulparams/plt_unwind.sh (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/aarch64elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/alphaelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/armelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/avrelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/bfin.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/cskyelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/hppaelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/ia64elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/m68hc1xelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/m68kelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/metagelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/mipself.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/nds32elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/nto.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/ppc32elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/ppc64elf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/riscvelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/rxelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/s390.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/scoreelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/spuelf.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/tic6xdsbt.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/vxworks.em (PARSE_AND_LIST_PROLOGUE): Likewise. * emultempl/aix.em: Include "ldlex.h". (OPTION_XXX): Removed. (gld${EMULATION_NAME}_read_file): Replace lineno with linenumber. * emultempl/beos.em (OPTION_XXX): Removed. * emultempl/elf.em: Include "ldlex.h". Don't check PARSE_AND_LIST_PROLOGUE. (OPTION_XXX): Removed. * emultempl/msp430.em: Include "ldlex.h". (OPTION_XXX): Removed. * emultempl/pe.em (OPTION_XXX): Removed. * emultempl/pep.em (OPTION_XXX): Likewise. * emultempl/ticoff.em: Include "ldlex.h". (OPTION_XXX): Removed. * emultempl/vms.em: Include "ldlex.h". (OPTION_XXX): Removed. * emultempl/xtensaelf.em (elf32xtensa_size_opt, elf32xtensa_no_literal_movement, elf32xtensa_abi): Moved out of PARSE_AND_LIST_PROLOGUE. (PARSE_AND_LIST_PROLOGUE): Removed.
2024-01-17 23:46:37 +08:00
/* Used by emultempl/hppaelf.em. */
OPTION_MULTI_SUBSPACE,
/* Used by emultempl/ia64elf.em. */
OPTION_ITANIUM,
/* Used by emultempl/m68hc1xelf.em. */
OPTION_NO_TRAMPOLINE,
OPTION_BANK_WINDOW,
/* Used by emultempl/m68kelf.em. */
OPTION_GOT,
/* Used by emultempl/mipself.em. */
OPTION_INSN32,
OPTION_NO_INSN32,
OPTION_IGNORE_BRANCH_ISA,
OPTION_NO_IGNORE_BRANCH_ISA,
OPTION_COMPACT_BRANCHES,
OPTION_NO_COMPACT_BRANCHES,
/* Used by emultempl/msp430.em. */
OPTION_CODE_REGION,
OPTION_DATA_REGION,
OPTION_DISABLE_TRANS,
/* Used by emultempl/nds32elf.em. */
OPTION_BASELINE,
OPTION_ELIM_GC_RELOCS,
OPTION_FP_AS_GP,
OPTION_NO_FP_AS_GP,
OPTION_REDUCE_FP_UPDATE,
OPTION_NO_REDUCE_FP_UPDATE,
OPTION_EXPORT_SYMBOLS,
OPTION_HYPER_RELAX,
OPTION_TLSDESC_TRAMPOLINE,
OPTION_NO_TLSDESC_TRAMPOLINE,
/* Used by emultempl/nto.em. */
OPTION_LAZY_STACK,
/* Used by emultempl/pe.em, emultempl/pep.em and emultempl/beos.em. */
OPTION_DLL,
OPTION_FILE_ALIGNMENT,
OPTION_IMAGE_BASE,
OPTION_MAJOR_IMAGE_VERSION,
OPTION_MAJOR_OS_VERSION,
OPTION_MAJOR_SUBSYSTEM_VERSION,
OPTION_MINOR_IMAGE_VERSION,
OPTION_MINOR_OS_VERSION,
OPTION_MINOR_SUBSYSTEM_VERSION,
OPTION_SECTION_ALIGNMENT,
OPTION_SUBSYSTEM,
OPTION_HEAP,
OPTION_SUPPORT_OLD_CODE,
OPTION_OUT_DEF,
OPTION_EXPORT_ALL,
OPTION_EXCLUDE_SYMBOLS,
OPTION_EXCLUDE_ALL_SYMBOLS,
OPTION_KILL_ATS,
OPTION_STDCALL_ALIASES,
OPTION_ENABLE_STDCALL_FIXUP,
OPTION_DISABLE_STDCALL_FIXUP,
OPTION_WARN_DUPLICATE_EXPORTS,
OPTION_IMP_COMPAT,
OPTION_ENABLE_AUTO_IMAGE_BASE,
OPTION_DISABLE_AUTO_IMAGE_BASE,
OPTION_DLL_SEARCH_PREFIX,
OPTION_NO_DEFAULT_EXCLUDES,
OPTION_DLL_ENABLE_AUTO_IMPORT,
OPTION_DLL_DISABLE_AUTO_IMPORT,
OPTION_ENABLE_EXTRA_PE_DEBUG,
OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
OPTION_LARGE_ADDRESS_AWARE,
OPTION_DISABLE_LARGE_ADDRESS_AWARE,
OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1,
OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,
OPTION_NO_LEADING_UNDERSCORE,
OPTION_LEADING_UNDERSCORE,
OPTION_ENABLE_LONG_SECTION_NAMES,
OPTION_DISABLE_LONG_SECTION_NAMES,
/* DLLCharacteristics flags. */
OPTION_DYNAMIC_BASE,
OPTION_FORCE_INTEGRITY,
OPTION_NX_COMPAT,
OPTION_NO_ISOLATION,
OPTION_NO_SEH,
OPTION_NO_BIND,
OPTION_WDM_DRIVER,
OPTION_TERMINAL_SERVER_AWARE,
/* Determinism. */
OPTION_INSERT_TIMESTAMP,
OPTION_NO_INSERT_TIMESTAMP,
OPTION_PDB,
OPTION_ENABLE_RELOC_SECTION,
OPTION_DISABLE_RELOC_SECTION,
/* DLL Characteristics flags. */
OPTION_DISABLE_DYNAMIC_BASE,
OPTION_DISABLE_FORCE_INTEGRITY,
OPTION_DISABLE_NX_COMPAT,
OPTION_DISABLE_NO_ISOLATION,
OPTION_DISABLE_NO_SEH,
OPTION_DISABLE_NO_BIND,
OPTION_DISABLE_WDM_DRIVER,
OPTION_DISABLE_TERMINAL_SERVER_AWARE,
/* Used by emultempl/pep.em. */
OPTION_DISABLE_HIGH_ENTROPY_VA,
OPTION_HIGH_ENTROPY_VA,
/* Used by emultempl/ppc32elf.em. */
OPTION_NEW_PLT,
OPTION_OLD_PLT,
OPTION_OLD_GOT,
OPTION_PPC476_WORKAROUND,
OPTION_NO_PPC476_WORKAROUND,
OPTION_NO_PICFIXUP,
OPTION_VLE_RELOC_FIXUP,
/* Used by emultempl/ppc64elf.em. */
OPTION_PLT_STATIC_CHAIN,
OPTION_NO_PLT_STATIC_CHAIN,
OPTION_PLT_THREAD_SAFE,
OPTION_NO_PLT_THREAD_SAFE,
OPTION_PLT_LOCALENTRY,
OPTION_NO_PLT_LOCALENTRY,
OPTION_POWER10_STUBS,
OPTION_NO_POWER10_STUBS,
OPTION_NO_PCREL_OPT,
OPTION_SAVRES,
OPTION_NO_SAVRES,
OPTION_DOTSYMS,
OPTION_NO_DOTSYMS,
OPTION_TLS_GET_ADDR_OPT,
OPTION_TLS_GET_ADDR_REGSAVE,
OPTION_NO_TLS_GET_ADDR_REGSAVE,
OPTION_NO_OPD_OPT,
OPTION_NO_TOC_OPT,
OPTION_NO_MULTI_TOC,
OPTION_NO_TOC_SORT,
OPTION_NON_OVERLAPPING_OPD,
/* Used by emultempl/riscvelf.em. */
OPTION_RELAX_GP,
OPTION_NO_RELAX_GP,
OPTION_CHECK_ULEB128,
OPTION_NO_CHECK_ULEB128,
/* Used by emultempl/rxelf.em. */
OPTION_NO_FLAG_MISMATCH_WARNINGS,
OPTION_IGNORE_LMA,
OPTION_NO_IGNORE_LMA,
OPTION_FLAG_MISMATCH_WARNINGS,
/* Used by emultempl/s390.em. */
OPTION_PGSTE,
/* Used by emultempl/spuelf.em. */
OPTION_SPU_PLUGIN,
OPTION_SPU_NO_OVERLAYS,
OPTION_SPU_COMPACT_STUBS,
OPTION_SPU_STUB_SYMS,
OPTION_SPU_NON_OVERLAY_STUBS,
OPTION_SPU_LOCAL_STORE,
OPTION_SPU_STACK_ANALYSIS,
OPTION_SPU_STACK_SYMS,
OPTION_SPU_AUTO_OVERLAY,
OPTION_SPU_AUTO_RELINK,
OPTION_SPU_OVERLAY_RODATA,
OPTION_SPU_SOFT_ICACHE,
OPTION_SPU_LINE_SIZE,
OPTION_SPU_NUM_LINES,
OPTION_SPU_LRLIVE,
OPTION_SPU_NON_IA_TEXT,
OPTION_SPU_FIXED_SPACE,
OPTION_SPU_RESERVED_SPACE,
OPTION_SPU_EXTRA_STACK,
OPTION_SPU_NO_AUTO_OVERLAY,
OPTION_SPU_EMIT_FIXUPS,
/* Used by emultempl/tic6xdsbt.em. */
OPTION_DSBT_INDEX,
OPTION_DSBT_SIZE,
/* Used by emultempl/ticoff.em. */
OPTION_COFF_FORMAT,
/* Used by emultempl/vms.em. */
OPTION_IDENTIFICATION,
/* Used by emultempl/vxworks.em. */
OPTION_FORCE_DYNAMIC,
/* Used by emultempl/xtensaelf.em. */
OPTION_OPT_SIZEOPT,
OPTION_LITERAL_MOVEMENT,
OPTION_NO_LITERAL_MOVEMENT,
OPTION_ABI_WINDOWED,
OPTION_ABI_CALL0,
};
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/* The initial parser states. */
typedef enum input_enum
{
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input_selected, /* We've set the initial state. */
input_script,
input_mri_script,
input_version_script,
input_section_ordering_script,
bfd/ 2006-09-07 H.J. Lu <hongjiu.lu@intel.com> * elf-bfd.h (elf_link_hash_entry): Add a dynamic field. (bfd_elf_link_mark_dynamic_symbol): New. (SYMBOLIC_BIND): New. * elf32-i386.c (elf_i386_check_relocs): Replace info->symbolic with SYMBOLIC_BIND (info, h). (elf_i386_relocate_section): Likewise. * elf64-x86-64.c (elf64_x86_64_check_relocs): Likewise. (elf64_x86_64_relocate_section): Likewise. * elfxx-ia64.c (elfNN_ia64_check_relocs): Likewise. * elflink.c (bfd_elf_link_mark_dynamic_symbol): New. (bfd_elf_record_link_assignment): Call bfd_elf_link_mark_dynamic_symbol on new entry. (_bfd_elf_merge_symbol): Likewise. (_bfd_elf_export_symbol): Return if the symbol isn't exported. (_bfd_elf_fix_symbol_flags): Replace info->symbolic with SYMBOLIC_BIND (info, h). (_bfd_elf_dynamic_symbol_p): Likewise. (_bfd_elf_symbol_refs_local_p): Likewise. (bfd_elf_size_dynamic_sections): Updated. include/ 2006-09-07 H.J. Lu <hongjiu.lu@intel.com> * bfdlink.h (bfd_elf_dynamic_list): New. (bfd_link_info): Add a dynamic field. ld/ 2006-09-07 H.J. Lu <hongjiu.lu@intel.com> * Makefile.am (CXX): Set to g++. (CXX_FOR_TARGET): Likewise. * Makefile.in: Regenerated. * NEWS: Mention --dynamic-list. * ld.texinfo: Document --dynamic-list. * ldgram.y: Support dynamic list. * ldlang.c (lang_process): Call lang_finalize_version_expr_head on link_info.dynamic if needed. (lang_append_dynamic_list): New. (lang_append_dynamic_list_cpp_typeinfo): New. * ldlang.h (lang_append_dynamic_list): Likewise. * ldlang.h (lang_append_dynamic_list_cpp_typeinfo): Likewise. * ldlex.h (input_enum): Add input_dynamic_list. * ldlex.l: Handle it. * ldmain.c (main): Initialize link_info.dynamic. * lexsup.c (option_values): Add OPTION_DYNAMIC_LIST and OPTION_DYNAMIC_LIST_CPP_TYPEINFO. (ld_options): Add entries for OPTION_DYNAMIC_LIST and OPTION_DYNAMIC_LIST_CPP_TYPEINFO. (parse_args): Handle OPTION_DYNAMIC_LIST and OPTION_DYNAMIC_LIST_CPP_TYPEINFO. ld/testsuite/ 2006-09-07 H.J. Lu <hongjiu.lu@intel.com> * ld-elf/dl1.c: New file. * ld-elf/dl1.list: Likewise. * ld-elf/dl1.out: Likewise. * ld-elf/dl1main.c: Likewise. * ld-elf/dl2.c: Likewise. * ld-elf/dl2.list: Likewise. * ld-elf/dl2a.out: Likewise. * ld-elf/dl2b.out: Likewise. * ld-elf/dl2main.c: Likewise. * ld-elf/dl2xxx.c: Likewise. * ld-elf/dl2xxx.list: Likewise. * ld-elf/dl3.cc: Likewise. * ld-elf/dl3.list: Likewise. * ld-elf/dl3a.out: Likewise. * ld-elf/dl3b.out: Likewise. * ld-elf/dl3header.h: Likewise. * ld-elf/dl3main.cc: Likewise. * ld-elf/shared.exp: Updated. * lib/ld-lib.exp (run_ld_link_exec_tests): Take an optional argument for source language. Use CC/CXX for link, depending on source language. (run_cc_link_tests): Likewise.
2006-09-08 01:16:34 +08:00
input_dynamic_list,
1999-05-03 15:29:11 +08:00
input_defsym
} input_type;
extern input_type parser_input;
extern unsigned int lineno;
extern const char *lex_string;
/* In ldlex.l. */
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extern int yylex (void);
extern void lex_push_file (FILE *, const char *, unsigned int);
extern void lex_redirect (const char *, const char *, unsigned int);
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extern void ldlex_script (void);
extern void ldlex_inputlist (void);
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extern void ldlex_mri_script (void);
extern void ldlex_version_script (void);
extern void ldlex_version_file (void);
extern void ldlex_expression (void);
PR28217, Syntax error when memory region contains a hyphen The saga of commit 40726f16a8d7 continues. This attacks the problem of switching between SCRIPT and EXPRESSION state lexing by removing the need to do so for phdrs like ":text". Instead {WILDCHAR}* matching, the reason why ":text" lexed as one token, is restricted to within the braces of a section or overlay statement. The new WILD lexer state is switched at the non-optional brace tokens, so ldlex_backup is no longer needed. I've also removed the BOTH state, which doesn't seem to be needed any more. Besides rules involving error reporting, there was just one place where SCRIPT appeared without BOTH, the {WILDCHAR}* rule, three where BOTH appears without SCRIPT for tokens that only need EXPRESSION state, and two where BOTH appears alongside INPUT_LIST. (Since I'm editing the wild and filename rules, removing BOTH and adding WILD can also be seen as renaming the old BOTH state to SCRIPT and renaming the old SCRIPT state to WILD with a reduced scope.) As a followup, I'll look at removing EXPRESSION state from some lexer rules that no longer need it due to this cleanup. PR 28217 * ldgram.y (exp <ORIGIN, LENGTH>): Use paren_script_name. (section): Parse within braces of section in wild mode, and after brace back in script mode. Remove ldlex_backup call. Similarly for OVERLAY. (overlay_section): Similarly. (script_file): Replace ldlex_both with ldlex_script. * ldlex.h (ldlex_wild): Declare. (ldlex_both): Delete. * ldlex.l (BOTH): Delete. Remove state from all rules. (WILD): New state. Enable many tokens in this state. Enable filename match in SCRIPT mode. Enable WILDCHAR match in WILD state, disable in SCRIPT mode. (ldlex_wild): New function. * ldfile.c (ldfile_try_open_bfd): Replace ldlex_both call with ldlex_script.
2021-08-13 10:20:16 +08:00
extern void ldlex_wild (void);
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extern void ldlex_popstate (void);
ld script expression parsing Parsing symbol or file/section names in ld linker scripts is a little complicated. Inside SECTIONS, a name might be the start of an expression or an output section. Is ".foo=x-y" a fancy section name or is it the expression ".foo = x - y"? It isn't possible for a single lookahead parser to decide, so the answer in this case is that it's a section name. This is the reason why everyone writes linker script assignment expressions with lots of white-space. However, there are many places where the parser knows for sure that an expression is expected. Those could be written without whitespace given the first change to ldlex.l below. Unfortunately, that runs into a lookahead problem. Optional expressions at the end of an output section statement require the parser to look ahead one token in expression context. For this example from standard scripts .interp : { *(.interp) } .note.gnu.build-id : { *(.note.gnu.build-id) } at the end of the .interp closing brace, the parser is looking for a possible memspec, phdr, fill or even an optional comma. The next token is a NAME, but in expression context that NAME now doesn't include '-' as a valid char. So the lookahead NAME is ".note.gnu.build" with an unexpected "-id" syntax error before the colon. The rest of the patch involving ldlex_backup arranges to discard that NAME token so that it will be rescanned in the proper script context. * ldgram.y (section): Call ldlex_backup. Remove empty action. * ldlex.h (ldlex_backup): Declare. * ldlex.l (<EXPRESSION>NAME): Don't use NOCFILENAMECHAR set of chars, use SYMBOLNAMECHAR. (ldlex_backup): New function.
2021-02-01 06:45:41 +08:00
extern void ldlex_backup (void);
extern const char* ldlex_filename (void);
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/* In lexsup.c. */
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extern int lex_input (void);
extern void lex_unput (int);
extern void parse_args (unsigned, char **);
1999-05-03 15:29:11 +08:00
#endif