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| author | Fangrui Song <maskray@google.com> | 2023-07-09 10:57:19 -0700 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2023-07-09 10:57:19 -0700 |
| commit | 5e24da908dbf6ddeb03e2b194f6b39dea3c660f3 (patch) | |
| tree | e794077f7d101002abb3d965f3377ebbbb4ea0a6 /binutils/doc | |
| parent | 4fb2abb59d16f6395162f2e8d9494cde4a37e4a1 (diff) | |
| download | gdb-5e24da908dbf6ddeb03e2b194f6b39dea3c660f3.zip gdb-5e24da908dbf6ddeb03e2b194f6b39dea3c660f3.tar.gz gdb-5e24da908dbf6ddeb03e2b194f6b39dea3c660f3.tar.bz2 | |
PR30592 objcopy: allow --set-section-flags to add or remove SHF_X86_64_LARGE
For example, objcopy --set-section-flags .data=alloc,large will add
SHF_X86_64_LARGE to the .data section. Omitting "large" will drop the
SHF_X86_64_LARGE flag.
The bfd_section flag is named generically, SEC_ELF_LARGE, in case other
processors want to follow SHF_X86_64_LARGE. SEC_ELF_LARGE has the same
value as SEC_TIC54X_BLOCK used by coff.
bfd/
* section.c: Define SEC_ELF_LARGE.
* bfd-in2.h: Regenerate.
* elf64-x86-64.c (elf_x86_64_section_flags, elf_x86_64_fake_sections,
elf_x86_64_copy_private_section_data): New.
binutils/
* NEWS: Mention the new feature for objcopy.
* doc/binutils.texi: Mention "large".
* objcopy.c (parse_flags): Parse "large".
(check_new_section_flags): Error if "large" is used with a
non-x86-64 ELF target.
* testsuite/binutils-all/x86-64/large-sections.d: New.
* testsuite/binutils-all/x86-64/large-sections.s: New.
* testsuite/binutils-all/x86-64/large-sections-i386.d: New.
* testsuite/binutils-all/x86-64/large-sections-2.d: New.
* testsuite/binutils-all/x86-64/large-sections-2-x32.d: New.
Diffstat (limited to 'binutils/doc')
| -rw-r--r-- | binutils/doc/binutils.texi | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/binutils/doc/binutils.texi b/binutils/doc/binutils.texi index 8314cb5..309bedf 100644 --- a/binutils/doc/binutils.texi +++ b/binutils/doc/binutils.texi @@ -1745,13 +1745,14 @@ Set the flags for any sections matching @var{sectionpattern}. The @var{flags} argument is a comma separated string of flag names. The recognized names are @samp{alloc}, @samp{contents}, @samp{load}, @samp{noload}, @samp{readonly}, @samp{code}, @samp{data}, @samp{rom}, -@samp{exclude}, @samp{share}, and @samp{debug}. You can set the -@samp{contents} flag for a section which does not have contents, but it -is not meaningful to clear the @samp{contents} flag of a section which -does have contents--just remove the section instead. Not all flags are -meaningful for all object file formats. In particular the -@samp{share} flag is only meaningful for COFF format files and not for -ELF format files. +@samp{exclude}, @samp{share}, @samp{debug}, and @samp{large}. +You can set the @samp{contents} flag for a section which does not have +contents, but it is not meaningful to clear the @samp{contents} flag of a +section which does have contents--just remove the section instead. Not all +flags are meaningful for all object file formats. In particular the +@samp{share} flag is only meaningful for COFF format files and not for ELF +format files. The ELF x86-64 specific flag @samp{large} corresponds to +SHF_X86_64_LARGE. @item --set-section-alignment @var{sectionpattern}=@var{align} Set the alignment for any sections matching @var{sectionpattern}. |