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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-02-27 12:22:58 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-07-08 09:59:28 -0700 |
| commit | a8dde0a2114f87bcdc19946aeab26788f5eae1b7 (patch) | |
| tree | 52c8cd4ecd4d2e1a296652841e4e9d63d61ed5a4 /ld/ld.texi | |
| parent | 74b10a3219e44ba2585e3f7226a6455d41e92c1b (diff) | |
| download | binutils-gdb-a8dde0a2114f87bcdc19946aeab26788f5eae1b7.tar.gz | |
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.
Diffstat (limited to 'ld/ld.texi')
| -rw-r--r-- | ld/ld.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ld/ld.texi b/ld/ld.texi index dd8f571d4e4..67c50839b37 100644 --- a/ld/ld.texi +++ b/ld/ld.texi @@ -2839,6 +2839,12 @@ has been used. The @option{--reduce-memory-overheads} switch may be also be used to enable other tradeoffs in future versions of the linker. +@kindex --max-cache-size=@var{size} +@item --max-cache-size=@var{size} +@command{ld} normally caches the relocation information and symbol tables +of input files in memory with the unlimited size. This option sets the +maximum cache size to @var{size}. + @kindex --build-id @kindex --build-id=@var{style} @item --build-id |