@copying
@c man begin COPYRIGHT
-Copyright @copyright{} 1991-2014 Free Software Foundation, Inc.
+Copyright @copyright{} 1991-2017 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3
are extracted.
Files cannot be extracted from a thin archive.
-
-@item --help
-Displays the list of command line options supported by @command{ar}
-and then exits.
-
-@item --version
-Displays the version information of @command{ar} and then exits.
-
@end table
A number of modifiers (@var{mod}) may immediately follow the @var{p}
This modifier shows the version number of @command{ar}.
@end table
+The @command{ar} program also supports some command line options which
+are neither modifiers nor actions, but which do change its behaviour
+in specific ways:
+
+@table @samp
+@item --help
+Displays the list of command line options supported by @command{ar}
+and then exits.
+
+@item --version
+Displays the version information of @command{ar} and then exits.
+
+@item -X32_64
@command{ar} ignores an initial option spelt @samp{-X32_64}, for
compatibility with AIX. The behaviour produced by this option is the
-default for @sc{gnu} @command{ar}. @command{ar} does not support any of the other
-@samp{-X} options; in particular, it does not support @option{-X32}
-which is the default for AIX @command{ar}.
+default for @sc{gnu} @command{ar}. @command{ar} does not support any
+of the other @samp{-X} options; in particular, it does not support
+@option{-X32} which is the default for AIX @command{ar}.
-The optional command line switch @option{--plugin} @var{name} causes
+@item --plugin @var{name}
+@cindex plugins
+The optional command line switch @option{--plugin @var{name}} causes
@command{ar} to load the plugin called @var{name} which adds support
-for more file formats. This option is only available if the toolchain
-has been built with plugin support enabled.
-
-The optional command line switch @option{--target} @var{bfdname}
+for more file formats, including object files with link-time
+optimization information.
+
+This option is only available if the toolchain has been built with
+plugin support enabled.
+
+If @option{--plugin} is not provided, but plugin support has been
+enabled then @command{ar} iterates over the files in
+@file{$@{libdir@}/bfd-plugins} in alphabetic order and the first
+plugin that claims the object in question is used.
+
+Please note that this plugin search directory is @emph{not} the one
+used by @command{ld}'s @option{-plugin} option. In order to make
+@command{ar} use the linker plugin it must be copied into the
+@file{$@{libdir@}/bfd-plugins} directory. For GCC based compilations
+the linker plugin is called @file{liblto_plugin.so.0.0.0}. For Clang
+based compilations it is called @file{LLVMgold.so}. The GCC plugin
+is always backwards compatible with earlier versions, so it is
+sufficient to just copy the newest one.
+
+@item --target @var{target}
+The optional command line switch @option{--target @var{bfdname}}
specifies that the archive members are in an object code format
different from your system's default format. See
@xref{Target Selection}, for more information.
-
+@end table
@c man end
@ignore
[@option{-B}|@option{--format=bsd}] [@option{-C}|@option{--demangle}[=@var{style}]]
[@option{-D}|@option{--dynamic}] [@option{-f}@var{format}|@option{--format=}@var{format}]
[@option{-g}|@option{--extern-only}] [@option{-h}|@option{--help}]
- [@option{-l}|@option{--line-numbers}] [@option{-n}|@option{-v}|@option{--numeric-sort}]
+ [@option{-l}|@option{--line-numbers}] [@option{--inlines}]
+ [@option{-n}|@option{-v}|@option{--numeric-sort}]
[@option{-P}|@option{--portability}] [@option{-p}|@option{--no-sort}]
[@option{-r}|@option{--reverse-sort}] [@option{-S}|@option{--print-size}]
[@option{-s}|@option{--print-armap}] [@option{-t} @var{radix}|@option{--radix=}@var{radix}]
[@option{-u}|@option{--undefined-only}] [@option{-V}|@option{--version}]
[@option{-X 32_64}] [@option{--defined-only}] [@option{--no-demangle}]
[@option{--plugin} @var{name}] [@option{--size-sort}] [@option{--special-syms}]
- [@option{--synthetic}] [@option{--target=}@var{bfdname}]
+ [@option{--synthetic}] [@option{--with-symbol-versions}] [@option{--target=}@var{bfdname}]
[@var{objfile}@dots{}]
@c man end
@end smallexample
number of a relocation entry which refers to the symbol. If line number
information can be found, print it after the other symbol information.
+@item --inlines
+@cindex objdump inlines
+When option @option{-l} is active, if the address belongs to a
+function that was inlined, then this option causes the source
+information for all enclosing scopes back to the first non-inlined
+function to be printed as well. For example, if @code{main} inlines
+@code{callee1} which inlines @code{callee2}, and address is from
+@code{callee2}, the source information for @code{callee1} and @code{main}
+will also be printed.
+
@item -n
@itemx -v
@itemx --numeric-sort
Display only defined symbols for each object file.
@item --plugin @var{name}
-@cindex load plugin
+@cindex plugins
Load the plugin called @var{name} to add support for extra target
types. This option is only available if the toolchain has been built
with plugin support enabled.
+If @option{--plugin} is not provided, but plugin support has been
+enabled then @command{nm} iterates over the files in
+@file{$@{libdir@}/bfd-plugins} in alphabetic order and the first
+plugin that claims the object in question is used.
+
+Please note that this plugin search directory is @emph{not} the one
+used by @command{ld}'s @option{-plugin} option. In order to make
+@command{nm} use the linker plugin it must be copied into the
+@file{$@{libdir@}/bfd-plugins} directory. For GCC based compilations
+the linker plugin is called @file{liblto_plugin.so.0.0.0}. For Clang
+based compilations it is called @file{LLVMgold.so}. The GCC plugin
+is always backwards compatible with earlier versions, so it is
+sufficient to just copy the newest one.
+
@item --size-sort
-Sort symbols by size. The size is computed as the difference between
-the value of the symbol and the value of the symbol with the next higher
-value. If the @code{bsd} output format is used the size of the symbol
-is printed, rather than the value, and @samp{-S} must be used in order
-both size and value to be printed.
+Sort symbols by size. For ELF objects symbol sizes are read from the
+ELF, for other object types the symbol sizes are computed as the
+difference between the value of the symbol and the value of the symbol
+with the next higher value. If the @code{bsd} output format is used
+the size of the symbol is printed, rather than the value, and
+@samp{-S} must be used in order both size and value to be printed.
@item --special-syms
Display symbols which have a target-specific special meaning. These
created by the linker for various purposes. They are not shown by
default since they are not part of the binary's original source code.
+@item --with-symbol-versions
+Enables the display of symbol version information if any exists. The
+version string is displayed as a suffix to the symbol name, preceeded by
+an @@ character. For example @samp{foo@@VER_1}. If the version is
+the default version to be used when resolving unversioned references
+to the symbol then it is displayed as a suffix preceeded by two @@
+characters. For example @samp{foo@@@@VER_2}.
+
@item --target=@var{bfdname}
@cindex object code format
Specify an object code format other than your system's default format.
[@option{--interleave-width=}@var{width}]
[@option{-j} @var{sectionpattern}|@option{--only-section=}@var{sectionpattern}]
[@option{-R} @var{sectionpattern}|@option{--remove-section=}@var{sectionpattern}]
+ [@option{--remove-relocations=}@var{sectionpattern}]
[@option{-p}|@option{--preserve-dates}]
[@option{-D}|@option{--enable-deterministic-archives}]
[@option{-U}|@option{--disable-deterministic-archives}]
[@option{--set-section-flags} @var{sectionpattern}=@var{flags}]
[@option{--add-section} @var{sectionname}=@var{filename}]
[@option{--dump-section} @var{sectionname}=@var{filename}]
+ [@option{--update-section} @var{sectionname}=@var{filename}]
[@option{--rename-section} @var{oldname}=@var{newname}[,@var{flags}]]
[@option{--long-section-names} @{enable,disable,keep@}]
[@option{--change-leading-char}] [@option{--remove-leading-char}]
[@option{--localize-symbols=}@var{filename}]
[@option{--globalize-symbols=}@var{filename}]
[@option{--weaken-symbols=}@var{filename}]
+ [@option{--add-symbol} @var{name}=[@var{section}:]@var{value}[,@var{flags}]
[@option{--alt-machine-code=}@var{index}]
[@option{--prefix-symbols=}@var{string}]
[@option{--prefix-sections=}@var{string}]
[@option{--subsystem=}@var{which}:@var{major}.@var{minor}]
[@option{--compress-debug-sections}]
[@option{--decompress-debug-sections}]
- [@option{--dwarf-depth=@var{n}}]
- [@option{--dwarf-start=@var{n}}]
+ [@option{--elf-stt-common=@var{val}}]
+ [@option{--merge-notes}]
[@option{-v}|@option{--verbose}]
[@option{-V}|@option{--version}]
[@option{--help}] [@option{--info}]
inappropriately may make the output file unusable. Wildcard
characters are accepted in @var{sectionpattern}.
+If the first character of @var{sectionpattern} is the exclamation
+point (!) then matching sections will not be copied, even if earlier
+use of @option{--only-section} on the same command line would
+otherwise copy it. For example:
+
+@smallexample
+ --only-section=.text.* --only-section=!.text.foo
+@end smallexample
+
+will copy all sectinos maching '.text.*' but not the section
+'.text.foo'.
+
@item -R @var{sectionpattern}
@itemx --remove-section=@var{sectionpattern}
Remove any section matching @var{sectionpattern} from the output file.
@option{-j} and @option{-R} options together results in undefined
behaviour.
+If the first character of @var{sectionpattern} is the exclamation
+point (!) then matching sections will not be removed even if an
+earlier use of @option{--remove-section} on the same command line
+would otherwise remove it. For example:
+
+@smallexample
+ --remove-section=.text.* --remove-section=!.text.foo
+@end smallexample
+
+will remove all sections matching the pattern '.text.*', but will not
+remove the section '.text.foo'.
+
+@item --remove-relocations=@var{sectionpattern}
+Remove relocations from the output file for any section matching
+@var{sectionpattern}. This option may be given more than once. Note
+that using this option inappropriately may make the output file
+unusable. Wildcard characters are accepted in @var{sectionpattern}.
+For example:
+
+@smallexample
+ --remove-relocations=.text.*
+@end smallexample
+
+will remove the relocations for all sections matching the patter
+'.text.*'.
+
+If the first character of @var{sectionpattern} is the exclamation
+point (!) then matching sections will not have their relocation
+removed even if an earlier use of @option{--remove-relocations} on the
+same command line would otherwise cause the relocations to be removed.
+For example:
+
+@smallexample
+ --remove-relocations=.text.* --remove-relocations=!.text.foo
+@end smallexample
+
+will remove all relocations for sections matching the pattern
+'.text.*', but will not remove relocations for the section
+'.text.foo'.
+
@item -S
@itemx --strip-all
Do not copy relocation and symbol information from the source file.
@item -L @var{symbolname}
@itemx --localize-symbol=@var{symbolname}
-Make symbol @var{symbolname} local to the file, so that it is not
-visible externally. This option may be given more than once.
+Convert a global or weak symbol called @var{symbolname} into a local
+symbol, so that it is not visible externally. This option may be
+given more than once. Note - unique symbols are not converted.
@item -W @var{symbolname}
@itemx --weaken-symbol=@var{symbolname}
as raw binary data, without applying any relocations. The option can
be specified more than once.
+@item --update-section @var{sectionname}=@var{filename}
+Replace the existing contents of a section named @var{sectionname}
+with the contents of file @var{filename}. The size of the section
+will be adjusted to the size of the file. The section flags for
+@var{sectionname} will be unchanged. For ELF format files the section
+to segment mapping will also remain unchanged, something which is not
+possible using @option{--remove-section} followed by
+@option{--add-section}. The option can be specified more than once.
+
+Note - it is possible to use @option{--rename-section} and
+@option{--update-section} to both update and rename a section from one
+command line. In this case, pass the original section name to
+@option{--update-section}, and the original and new section names to
+@option{--rename-section}.
+
+@item --add-symbol @var{name}=[@var{section}:]@var{value}[,@var{flags}]
+Add a new symbol named @var{name} while copying the file. This option may be
+specified multiple times. If the @var{section} is given, the symbol will be
+associated with and relative to that section, otherwise it will be an ABS
+symbol. Specifying an undefined section will result in a fatal error. There
+is no check for the value, it will be taken as specified. Symbol flags can
+be specified and not all flags will be meaningful for all object file
+formats. By default, the symbol will be global. The special flag
+'before=@var{othersym}' will insert the new symbol in front of the specified
+@var{othersym}, otherwise the symbol(s) will be added at the end of the
+symbol table in the order they appear.
+
@item --rename-section @var{oldname}=@var{newname}[,@var{flags}]
Rename a section from @var{oldname} to @var{newname}, optionally
changing the section's flags to @var{flags} in the process. This has
@var{string}.
@item --add-gnu-debuglink=@var{path-to-file}
-Creates a .gnu_debuglink section which contains a reference to @var{path-to-file}
-and adds it to the output file.
+Creates a .gnu_debuglink section which contains a reference to
+@var{path-to-file} and adds it to the output file. Note: the file at
+@var{path-to-file} must exist. Part of the process of adding the
+.gnu_debuglink section involves embedding a checksum of the contents
+of the debug info file into the section.
+
+If the debug info file is built in one location but it is going to be
+installed at a later time into a different location then do not use
+the path to the installed location. The @option{--add-gnu-debuglink}
+option will fail because the installed file does not exist yet.
+Instead put the debug info file in the current directory and use the
+@option{--add-gnu-debuglink} option without any directory components,
+like this:
+
+@smallexample
+ objcopy --add-gnu-debuglink=foo.debug
+@end smallexample
+
+At debug time the debugger will attempt to look for the separate debug
+info file in a set of known locations. The exact set of these
+locations varies depending upon the distribution being used, but it
+typically includes:
+
+@table @code
+
+@item * The same directory as the executable.
+
+@item * A sub-directory of the directory containing the executable
+called .debug
+
+@item * A global debug directory such as /usr/lib/debug.
+@end table
+
+As long as the debug info file has been installed into one of these
+locations before the debugger is run everything should work
+correctly.
@item --keep-file-symbols
When stripping a file, perhaps with @option{--strip-debug} or
stripped by @option{--strip-debug} and leaving the debugging sections
intact. In ELF files, this preserves all note sections in the output.
+Note - the section headers of the stripped sections are preserved,
+including their sizes, but the contents of the section are discarded.
+The section headers are preserved so that other tools can match up the
+debuginfo file with the real executable, even if that executable has
+been relocated to a different address space.
+
The intention is that this option will be used in conjunction with
@option{--add-gnu-debuglink} to create a two part executable. One a
stripped binary which will occupy less space in RAM and in a
linker input file.
@item --compress-debug-sections
-Compress DWARF debug sections using zlib.
+Compress DWARF debug sections using zlib with SHF_COMPRESSED from the
+ELF ABI. Note - if compression would actually make a section
+@emph{larger}, then it is not compressed.
+
+@item --compress-debug-sections=none
+@itemx --compress-debug-sections=zlib
+@itemx --compress-debug-sections=zlib-gnu
+@itemx --compress-debug-sections=zlib-gabi
+For ELF files, these options control how DWARF debug sections are
+compressed. @option{--compress-debug-sections=none} is equivalent
+to @option{--decompress-debug-sections}.
+@option{--compress-debug-sections=zlib} and
+@option{--compress-debug-sections=zlib-gabi} are equivalent to
+@option{--compress-debug-sections}.
+@option{--compress-debug-sections=zlib-gnu} compresses DWARF debug
+sections using zlib. The debug sections are renamed to begin with
+@samp{.zdebug} instead of @samp{.debug}. Note - if compression would
+actually make a section @emph{larger}, then it is not compressed nor
+renamed.
@item --decompress-debug-sections
-Decompress DWARF debug sections using zlib.
+Decompress DWARF debug sections using zlib. The original section
+names of the compressed sections are restored.
+
+@item --elf-stt-common=yes
+@itemx --elf-stt-common=no
+For ELF files, these options control whether common symbols should be
+converted to the @code{STT_COMMON} or @code{STT_OBJECT} type.
+@option{--elf-stt-common=yes} converts common symbol type to
+@code{STT_COMMON}. @option{--elf-stt-common=no} converts common symbol
+type to @code{STT_OBJECT}.
+
+@item --merge-notes
+For ELF files, attempt to reduce the size of any SHT_NOTE type
+sections by removing duplicate notes.
@item -V
@itemx --version
[@option{-R}|@option{--dynamic-reloc}]
[@option{-s}|@option{--full-contents}]
[@option{-W[lLiaprmfFsoRt]}|
- @option{--dwarf}[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index]]
+ @option{--dwarf}[=rawline,=decodedline,=info,=abbrev,=pubnames]
+ [=aranges,=macro,=frames,=frames-interp,=str,=loc]
+ [=Ranges,=pubtypes,=trace_info,=trace_abbrev]
+ [=trace_aranges,=gdb_index]
[@option{-G}|@option{--stabs}]
[@option{-t}|@option{--syms}]
[@option{-T}|@option{--dynamic-syms}]
[@option{--prefix-addresses}]
[@option{--[no-]show-raw-insn}]
[@option{--adjust-vma=}@var{offset}]
+ [@option{--dwarf-depth=@var{n}}]
+ [@option{--dwarf-start=@var{n}}]
[@option{--special-syms}]
[@option{--prefix=}@var{prefix}]
[@option{--prefix-strip=}@var{level}]
Like @option{-d}, but disassemble the contents of all sections, not just
those expected to contain instructions.
+This option also has a subtle effect on the disassembly of
+instructions in code sections. When option @option{-d} is in effect
+objdump will assume that any symbols present in a code section occur
+on the boundary between instructions and it will refuse to disassemble
+across such a boundary. When option @option{-D} is in effect however
+this assumption is supressed. This means that it is possible for the
+output of @option{-d} and @option{-D} to differ if, for example, data
+is stored in code sections.
+
If the target is an ARM architecture this switch also has the effect
of forcing the disassembler to decode pieces of data found in code
sections as if they were instructions.
Instead, it shows the usual addresses, which are implicit for the
target.
+Note, in some cases it is possible for a section to have both the
+READONLY and the NOREAD attributes set. In such cases the NOREAD
+attribute takes precedence, but @command{objdump} will report both
+since the exact setting of the flag bits might be important.
+
@item -H
@itemx --help
Print a summary of the options to @command{objdump} and exit.
disassembler option then multiple @option{-M} options can be used or
can be placed together into a comma separated list.
+For ARC, @option{dsp} controls the printing of DSP instructions,
+@option{spfp} selects the printing of FPX single precision FP
+instructions, @option{dpfp} selects the printing of FPX double
+precision FP instructions, @option{quarkse_em} selects the printing of
+special QuarkSE-EM instructions, @option{fpuda} selects the printing
+of double precision assist instructions, @option{fpus} selects the
+printing of FPU single precision FP instructions, while @option{fpud}
+selects the printing of FPU souble precision FP instructions.
+
If the target is an ARM architecture then this switch can be used to
select which register name set is used during disassembler. Specifying
@option{-M reg-names-std} (the default) will select the register names as
For the x86, some of the options duplicate functions of the @option{-m}
switch, but allow finer grained control. Multiple selections from the
following may be specified as a comma separated string.
-@option{x86-64}, @option{i386} and @option{i8086} select disassembly for
-the given architecture. @option{intel} and @option{att} select between
-intel syntax mode and AT&T syntax mode.
-@option{intel-mnemonic} and @option{att-mnemonic} select between
-intel mnemonic mode and AT&T mnemonic mode. @option{intel-mnemonic}
-implies @option{intel} and @option{att-mnemonic} implies @option{att}.
-@option{addr64}, @option{addr32},
-@option{addr16}, @option{data32} and @option{data16} specify the default
-address size and operand size. These four options will be overridden if
-@option{x86-64}, @option{i386} or @option{i8086} appear later in the
-option string. Lastly, @option{suffix}, when in AT&T mode,
-instructs the disassembler to print a mnemonic suffix even when the
-suffix could be inferred by the operands.
+@table @code
+@item x86-64
+@itemx i386
+@itemx i8086
+Select disassembly for the given architecture.
+
+@item intel
+@itemx att
+Select between intel syntax mode and AT&T syntax mode.
+
+@item amd64
+@itemx intel64
+Select between AMD64 ISA and Intel64 ISA.
+
+@item intel-mnemonic
+@itemx att-mnemonic
+Select between intel mnemonic mode and AT&T mnemonic mode.
+Note: @code{intel-mnemonic} implies @code{intel} and
+@code{att-mnemonic} implies @code{att}.
+
+@item addr64
+@itemx addr32
+@itemx addr16
+@itemx data32
+@itemx data16
+Specify the default address size and operand size. These four options
+will be overridden if @code{x86-64}, @code{i386} or @code{i8086}
+appear later in the option string.
+
+@item suffix
+When in AT&T mode, instructs the disassembler to print a mnemonic
+suffix even when the suffix could be inferred by the operands.
+@end table
For PowerPC, @option{booke} controls the disassembly of BookE
instructions. @option{32} and @option{64} select PowerPC and
argument @var{options} is a comma separated list that depends on the
format (the lists of options is displayed with the help).
-For XCOFF, the available options are: @option{header}, @option{aout},
-@option{sections}, @option{syms}, @option{relocs}, @option{lineno},
-@option{loader}, @option{except}, @option{typchk}, @option{traceback},
-@option{toc} and @option{ldinfo}.
+For XCOFF, the available options are:
+@table @code
+@item header
+@item aout
+@item sections
+@item syms
+@item relocs
+@item lineno,
+@item loader
+@item except
+@item typchk
+@item traceback
+@item toc
+@item ldinfo
+@end table
+
+Not all object formats support this option. In particular the ELF
+format does not use it.
@item -r
@itemx --reloc
instructions.
@item -W[lLiaprmfFsoRt]
-@itemx --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index]
+@itemx --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames]
+@itemx --dwarf[=aranges,=macro,=frames,=frames-interp,=str,=loc]
+@itemx --dwarf[=Ranges,=pubtypes,=trace_info,=trace_abbrev]
+@itemx --dwarf[=trace_aranges,=gdb_index]
@cindex DWARF
@cindex debug symbols
Displays the contents of the debug sections in the file, if any are
libraries. This is similar to the information provided by the @samp{nm}
program when given the @option{-D} (@option{--dynamic}) option.
+The output format is similar to that produced by the @option{--syms}
+option, except that an extra field is inserted before the symbol's
+name, giving the version information associated with the symbol.
+If the version is the default version to be used when resolving
+unversioned references to the symbol then it's displayed as is,
+otherwise it's put into parentheses.
+
@item --special-syms
When displaying symbols include those which the target considers to be
special in some way and which would not normally be of interest to the
[@option{-}] [@option{--all}] [@option{--print-file-name}]
[@option{-T} @var{bfdname}] [@option{--target=}@var{bfdname}]
[@option{-w}] [@option{--include-all-whitespace}]
+ [@option{-s}] [@option{--output-separator}@var{sep_string}]
[@option{--help}] [@option{--version}] @var{file}@dots{}
@c man end
@end smallexample
are displayed, but other whitespace characters, such a newlines and
carriage returns, are not. The @option{-w} option changes this so
that all whitespace characters are considered to be part of a string.
+
+@item -s
+@itemx --output-separator
+By default, output strings are delimited by a new-line. This option
+allows you to supply any string to be used as the output record
+separator. Useful with --include-all-whitespace where strings
+may contain new-lines internally.
@end table
@c man end
[@option{-w}|@option{--wildcard}]
[@option{-x}|@option{--discard-all}] [@option{-X} |@option{--discard-locals}]
[@option{-R} @var{sectionname} |@option{--remove-section=}@var{sectionname}]
+ [@option{--remove-relocations=}@var{sectionpattern}]
[@option{-o} @var{file}] [@option{-p}|@option{--preserve-dates}]
[@option{-D}|@option{--enable-deterministic-archives}]
[@option{-U}|@option{--disable-deterministic-archives}]
@item -R @var{sectionname}
@itemx --remove-section=@var{sectionname}
-Remove any section named @var{sectionname} from the output file. This
+Remove any section named @var{sectionname} from the output file, in
+addition to whatever sections would otherwise be removed. This
option may be given more than once. Note that using this option
inappropriately may make the output file unusable. The wildcard
character @samp{*} may be given at the end of @var{sectionname}. If
so, then any section starting with @var{sectionname} will be removed.
+If the first character of @var{sectionpattern} is the exclamation
+point (!) then matching sections will not be removed even if an
+earlier use of @option{--remove-section} on the same command line
+would otherwise remove it. For example:
+
+@smallexample
+ --remove-section=.text.* --remove-section=!.text.foo
+@end smallexample
+
+will remove all sections matching the pattern '.text.*', but will not
+remove the section '.text.foo'.
+
+@item --remove-relocations=@var{sectionpattern}
+Remove relocations from the output file for any section matching
+@var{sectionpattern}. This option may be given more than once. Note
+that using this option inappropriately may make the output file
+unusable. Wildcard characters are accepted in @var{sectionpattern}.
+For example:
+
+@smallexample
+ --remove-relocations=.text.*
+@end smallexample
+
+will remove the relocations for all sections matching the patter
+'.text.*'.
+
+If the first character of @var{sectionpattern} is the exclamation
+point (!) then matching sections will not have their relocation
+removed even if an earlier use of @option{--remove-relocations} on the
+same command line would otherwise cause the relocations to be removed.
+For example:
+
+@smallexample
+ --remove-relocations=.text.* --remove-relocations=!.text.foo
+@end smallexample
+
+will remove all relocations for sections matching the pattern
+'.text.*', but will not remove relocations for the section
+'.text.foo'.
+
@item -s
@itemx --strip-all
Remove all symbols.
which would otherwise get stripped.
@item --only-keep-debug
-Strip a file, removing contents of any sections that would not be
+Strip a file, emptying the contents of any sections that would not be
stripped by @option{--strip-debug} and leaving the debugging sections
-intact. In ELF files, this preserves all note sections in the output.
+intact. In ELF files, this preserves all the note sections in the
+output as well.
+
+Note - the section headers of the stripped sections are preserved,
+including their sizes, but the contents of the section are discarded.
+The section headers are preserved so that other tools can match up the
+debuginfo file with the real executable, even if that executable has
+been relocated to a different address space.
The intention is that this option will be used in conjunction with
@option{--add-gnu-debuglink} to create a two part executable. One a
@item -k
@itemx --kill-at
-Specifies that when @command{dlltool} is creating the exports file it
-should not append the string @samp{@@ <number>}. These numbers are
-called ordinal numbers and they represent another way of accessing the
-function in a DLL, other than by name.
+Specifies that @samp{@@<number>} suffixes should be omitted from the names
+of stdcall functions that will be imported from the DLL. This is
+useful when creating an import library for a DLL which exports stdcall
+functions but without the usual @samp{@@<number>} symbol name suffix.
+
+This does not change the naming of symbols provided by the import library
+to programs linked against it, but only the entries in the import table
+(ie the .idata section).
@item -A
@itemx --add-stdcall-alias
[@option{-x} <number or name>|@option{--hex-dump=}<number or name>]
[@option{-p} <number or name>|@option{--string-dump=}<number or name>]
[@option{-R} <number or name>|@option{--relocated-dump=}<number or name>]
+ [@option{-z}|@option{--decompress}]
[@option{-c}|@option{--archive-index}]
[@option{-w[lLiaprmfFsoRt]}|
@option{--debug-dump}[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index]]
@itemx --syms
@cindex ELF symbol table information
Displays the entries in symbol table section of the file, if it has one.
+If a symbol has version information associated with it then this is
+displayed as well. The version string is displayed as a suffix to the
+symbol name, preceeded by an @@ character. For example
+@samp{foo@@VER_1}. If the version is the default version to be used
+when resolving unversioned references to the symbol then it is
+displayed as a suffix preceeded by two @@ characters. For example
+@samp{foo@@@@VER_2}.
@item --dyn-syms
@cindex ELF dynamic symbol table information
Displays the entries in dynamic symbol table section of the file, if it
-has one.
+has one. The output format is the same as the format used by the
+@option{--syms} option.
@item -e
@itemx --headers
A number identifies a particular section by index in the section table;
any other string identifies all sections with that name in the object file.
+@item -z
+@itemx --decompress
+Requests that the section(s) being dumped by @option{x}, @option{R} or
+@option{p} options are decompressed before being displayed. If the
+section(s) are not compressed then they are displayed as is.
+
@item -c
@itemx --archive-index
@cindex Archive file symbol index information
@option{--input-mach} isn't specified, it will match any ELF
machine types.
-The supported ELF machine types are, @var{L1OM}, @var{K1OM} and
-@var{x86-64}.
+The supported ELF machine types are, @var{i386}, @var{IAMCU}, @var{L1OM},
+@var{K1OM} and @var{x86-64}.
@item --output-mach=@var{machine}
Change the ELF machine type in the ELF header to @var{machine}. The
projects / deliverable / binutils-gdb.git / blobdiff