@copying
@c man begin COPYRIGHT
-Copyright @copyright{} 1991-2013 Free Software Foundation, Inc.
+Copyright @copyright{} 1991-2016 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
@c man title ar create, modify, and extract from archives
@smallexample
-ar [@option{--plugin} @var{name}] [-]@var{p}[@var{mod} [@var{relpos}] [@var{count}]] [@option{--target} @var{bfdname}] @var{archive} [@var{member}@dots{}]
+ar [-]@var{p}[@var{mod}] [@option{--plugin} @var{name}] [@option{--target} @var{bfdname}] [@var{relpos}] [@var{count}] @var{archive} [@var{member}@dots{}]
ar -M [ <mri-script ]
@end smallexample
@smallexample
@c man begin SYNOPSIS ar
-ar [@option{--plugin} @var{name}] [@option{-X32_64}] [@option{-}]@var{p}[@var{mod} [@var{relpos}] [@var{count}]] [@option{--target} @var{bfdname}] @var{archive} [@var{member}@dots{}]
+ar [@option{-X32_64}] [@option{-}]@var{p}[@var{mod}] [@option{--plugin} @var{name}] [@option{--target} @var{bfdname}] [@var{relpos}] [@var{count}] @var{archive} [@var{member}@dots{}]
@c man end
@end smallexample
The modifier @samp{v} makes @command{ar} list each file as it is appended.
-Since the point of this operation is speed, the archive's symbol table
-index is not updated, even if it already existed; you can use @samp{ar s} or
-@command{ranlib} explicitly to update the symbol table index.
+Since the point of this operation is speed, implementations of
+@command{ar} have the option of not updating the archive's symbol
+table if one exists. Too many different systems however assume that
+symbol tables are always up-to-date, so @sc{gnu} @command{ar} will
+rebuild the table even with a quick append.
-However, too many different systems assume quick append rebuilds the
-index, so @sc{gnu} @command{ar} implements @samp{q} as a synonym for @samp{r}.
+Note - @sc{gnu} @command{ar} treats the command @samp{qs} as a
+synonym for @samp{r} - replacing already existing files in the
+archive and appending new ones at the end.
@item r
@cindex replacement in archive
address, but instead must be invoked at runtime. The runtime
execution will then return the value to be used in the relocation.
+@item I
+The symbol is an indirect reference to another symbol.
+
@item N
The symbol is a debugging symbol.
The symbol is a stabs symbol in an a.out object file. In this case, the
next values printed are the stabs other field, the stabs desc field, and
the stab type. Stabs symbols are used to hold debugging information.
-@ifclear man
-For more information, see @ref{Top,Stabs,Stabs Overview,stabs.info, The
-``stabs'' debug format}.
-@end ifclear
@item ?
The symbol type is unknown, or object file format specific.
with plugin support enabled.
@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
symbols are usually used by the target for some special processing and
-are not normally helpful when included included in the normal symbol
-lists. For example for ARM targets this option would skip the mapping
-symbols used to mark transitions between ARM code, THUMB code and
-data.
+are not normally helpful when included in the normal symbol lists.
+For example for ARM targets this option would skip the mapping symbols
+used to mark transitions between ARM code, THUMB code and data.
@item --synthetic
Include synthetic symbols in the output. These are special symbols
[@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{--change-warnings}] [@option{--no-change-warnings}]
[@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{-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}
contents of the new section are taken from the file @var{filename}. The
size of the section will be the size of the file. This option only
works on file formats which can support sections with arbitrary names.
+Note - it may be necessary to use the @option{--set-section-flags}
+option to set the attributes of the newly created section.
+
+@item --dump-section @var{sectionname}=@var{filename}
+Place the contents of section named @var{sectionname} into the file
+@var{filename}, overwriting any contents that may have been there
+previously. This option is the inverse of @option{--add-section}.
+This option is similar to the @option{--only-section} option except
+that it does not create a formatted file, it just dumps the contents
+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
@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 -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 the ARC architecture the option can be used to specify the extra
+instruction classes that should be disassembled. A comma separated
+list of one or more of the following values should be used:
+
+@table @code
+@item dsp
+Recognize DSP instructions.
+@item spfp
+Recognize FPX SP instructions.
+@item dpfp
+Recognize FPX DP instructions.
+@item quarkse_em
+Recognize FPU QuarkSE-EM instructions.
+@item fpuda
+Recognize double assist FPU instructions.
+@item fpus
+Recognize single precision FPU instructions.
+@item fpud
+Recognize double precision FPU instructions.
+@end table
+
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
instruction mnemonic. I.e., print 'daddu' or 'or' instead of 'move',
'sll' instead of 'nop', etc.
+@item msa
+Disassemble MSA instructions.
+
+@item virt
+Disassemble the virtualization ASE instructions.
+
+@item xpa
+Disassemble the eXtended Physical Address (XPA) ASE instructions.
+
@item gpr-names=@var{ABI}
Print GPR (general-purpose register) names as appropriate
for the specified ABI. By default, GPR names are selected according to
be decoded as VAX instructions, which would probably lead the rest
of the function being wrongly disassembled.
+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.
+
@item -p
@itemx --private-headers
Print information that is specific to the object file format. The exact
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}
-and @option{toc}.
+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
section. In most other file formats, debugging symbol-table entries are
interleaved with linkage symbols, and are visible in the @option{--syms}
output.
-@ifclear man
-For more information on stabs symbols, see @ref{Top,Stabs,Stabs
-Overview,stabs.info, The ``stabs'' debug format}.
-@end ifclear
@item --start-address=@var{address}
@cindex start-address
header will show zero for the UID, GID, and timestamp. When this
option is used, multiple runs will produce identical output files.
-This is the default unless @file{binutils} was configured with
-@option{--enable-deterministic-archives}.
+If @file{binutils} was configured with
+@option{--enable-deterministic-archives}, then this mode is on by
+default. It can be disabled with the @samp{-U} option, described
+below.
@item -t
Update the timestamp of the symbol map of an archive.
inverse of the @samp{-D} option, above: the archive index will get
actual UID, GID, timestamp, and file mode values.
-This is the default unless @file{binutils} was configured with
-@option{--enable-deterministic-archives}.
+If @file{binutils} was configured @emph{without}
+@option{--enable-deterministic-archives}, then this mode is on by
+default.
+
@end table
@c man end
[@option{-e} @var{encoding}] [@option{--encoding=}@var{encoding}]
[@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
@c man begin DESCRIPTION strings
-For each @var{file} given, @sc{gnu} @command{strings} prints the printable
-character sequences that are at least 4 characters long (or the number
-given with the options below) and are followed by an unprintable
-character. By default, it only prints the strings from the initialized
-and loaded sections of object files; for other types of files, it prints
-the strings from the whole file.
+For each @var{file} given, @sc{gnu} @command{strings} prints the
+printable character sequences that are at least 4 characters long (or
+the number given with the options below) and are followed by an
+unprintable character.
+
+Depending upon how the strings program was configured it will default
+to either displaying all the printable sequences that it can find in
+each file, or only those sequences that are in loadable, initialized
+data sections. If the file type in unrecognizable, or if strings is
+reading from stdin then it will always display all of the printable
+sequences that it can find.
-@command{strings} is mainly useful for determining the contents of non-text
-files.
+For backwards compatibility any file that occurs after a command line
+option of just @option{-} will also be scanned in full, regardless of
+the presence of any @option{-d} option.
+
+@command{strings} is mainly useful for determining the contents of
+non-text files.
@c man end
@item -a
@itemx --all
@itemx -
-Do not scan only the initialized and loaded sections of object files;
-scan the whole files.
+Scan the whole file, regardless of what sections it contains or
+whether those sections are loaded or initialized. Normally this is
+the default behaviour, but strings can be configured so that the
+@option{-d} is the default instead.
+
+The @option{-} option is position dependent and forces strings to
+perform full scans of any file that is mentioned after the @option{-}
+on the command line, even if the @option{-d} option has been
+specified.
+
+@item -d
+@itemx --data
+Only print strings from initialized, loaded data sections in the
+file. This may reduce the amount of garbage in the output, but it
+also exposes the strings program to any security flaws that may be
+present in the BFD library used to scan and load sections. Strings
+can be configured so that this option is the default behaviour. In
+such cases the @option{-a} option can be used to avoid using the BFD
+library and instead just print all of the strings found in the file.
@item -f
@itemx --print-file-name
@itemx -V
@itemx --version
Print the program version number on the standard output and exit.
+
+@item -w
+@itemx --include-all-whitespace
+By default tab and space characters are included in the strings that
+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
address on standard output. In this mode, @command{addr2line} may be used
in a pipe to convert dynamically chosen addresses.
-The format of the output is @samp{FILENAME:LINENO}. The file name and
-line number for each input address is printed on separate lines.
+The format of the output is @samp{FILENAME:LINENO}. By default
+each input address generates one line of output.
-If the @option{-f} option is used, then each @samp{FILENAME:LINENO}
-line is preceded by @samp{FUNCTIONNAME} which is the name of the
-function containing the address.
+Two options can generate additional lines before each
+@samp{FILENAME:LINENO} line (in that order).
-If the @option{-i} option is used and the code at the given address is
-present there because of inlining by the compiler then the
-@samp{@{FUNCTIONNAME@} FILENAME:LINENO} information for the inlining
-function will be displayed afterwards. This continues recursively
-until there is no more inlining to report.
+If the @option{-a} option is used then a line with the input address
+is displayed.
+
+If the @option{-f} option is used, then a line with the
+@samp{FUNCTIONNAME} is displayed. This is the name of the function
+containing the address.
-If the @option{-a} option is used then the output is prefixed by the
-input address.
+One option can generate additional lines after the
+@samp{FILENAME:LINENO} line.
-If the @option{-p} option is used then the output for each input
-address is displayed on one, possibly quite long, line. If
-@option{-p} is not used then the output is broken up into multiple
-lines, based on the paragraphs above.
+If the @option{-i} option is used and the code at the given address is
+present there because of inlining by the compiler then additional
+lines are displayed afterwards. One or two extra lines (if the
+@option{-f} option is used) are displayed for each inlined function.
+
+Alternatively if the @option{-p} option is used then each input
+address generates a single, long, output line containing the address,
+the function name, the file name and the line number. If the
+@option{-i} option has also been used then any inlined functions will
+be displayed in the same manner, but on separate lines, and prefixed
+by the text @samp{(inlined by)}.
If the file name or function name can not be determined,
@command{addr2line} will print two question marks in their place. If the
@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]]
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