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[Bug ld/18028] 32-bit ld runs out of memory when linking 32-bit clang wi

From: cvs-commit at gcc dot gnu.org
Subject: [Bug ld/18028] 32-bit ld runs out of memory when linking 32-bit clang with debug info
Date: Thu, 08 Jul 2021 17:02:29 +0000


--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@sourceware.org>:


commit a8dde0a2114f87bcdc19946aeab26788f5eae1b7
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Tue Feb 27 12:22:58 2018 -0800

    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.


            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
            (link_info_ok): New.
            (elf_gc_smash_unused_vtentry_relocs): Updated.  Call
            _bfd_elf_link_info_read_relocs instead of
            (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.


            PR ld/18028
            * bfdlink.h (bfd_link_info): Add cache_size and max_cache_size.


            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

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