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127 lines
2.8 KiB
ReStructuredText
127 lines
2.8 KiB
ReStructuredText
llvm-strings - print strings
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============================
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.. program:: llvm-strings
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SYNOPSIS
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--------
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:program:`llvm-strings` [*options*] [*input...*]
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DESCRIPTION
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-----------
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:program:`llvm-strings` is a tool intended as a drop-in replacement for GNU's
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:program:`strings`, which looks for printable strings in files and writes them
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to the standard output stream. A printable string is any sequence of four (by
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default) or more printable ASCII characters. The end of the file, or any other
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byte, terminates the current sequence.
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:program:`llvm-strings` looks for strings in each ``input`` file specified.
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Unlike GNU :program:`strings` it looks in the entire input file, regardless of
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file format, rather than restricting the search to certain sections of object
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files. If "``-``" is specified as an ``input``, or no ``input`` is specified,
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the program reads from the standard input stream.
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EXAMPLE
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-------
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.. code-block:: console
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$ cat input.txt
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bars
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foo
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wibble blob
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$ llvm-strings input.txt
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bars
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wibble blob
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OPTIONS
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-------
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.. option:: --all, -a
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Silently ignored. Present for GNU :program:`strings` compatibility.
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.. option:: --bytes=<length>, -n
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Set the minimum number of printable ASCII characters required for a sequence of
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bytes to be considered a string. The default value is 4.
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.. option:: --help, -h
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Display a summary of command line options.
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.. option:: --print-file-name, -f
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Display the name of the containing file before each string.
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Example:
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.. code-block:: console
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$ llvm-strings --print-file-name test.o test.elf
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test.o: _Z5hellov
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test.o: some_bss
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test.o: test.cpp
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test.o: main
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test.elf: test.cpp
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test.elf: test2.cpp
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test.elf: _Z5hellov
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test.elf: main
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test.elf: some_bss
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.. option:: --radix=<radix>, -t
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Display the offset within the file of each string, before the string and using
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the specified radix. Valid ``<radix>`` values are ``o``, ``d`` and ``x`` for
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octal, decimal and hexadecimal respectively.
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Example:
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.. code-block:: console
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$ llvm-strings --radix=o test.o
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1054 _Z5hellov
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1066 .rela.text
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1101 .comment
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1112 some_bss
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1123 .bss
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1130 test.cpp
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1141 main
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$ llvm-strings --radix=d test.o
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556 _Z5hellov
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566 .rela.text
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577 .comment
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586 some_bss
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595 .bss
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600 test.cpp
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609 main
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$ llvm-strings -t x test.o
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22c _Z5hellov
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236 .rela.text
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241 .comment
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24a some_bss
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253 .bss
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258 test.cpp
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261 main
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.. option:: --version
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Display the version of the :program:`llvm-strings` executable.
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.. option:: @<FILE>
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Read command-line options from response file ``<FILE>``.
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EXIT STATUS
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-----------
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:program:`llvm-strings` exits with a non-zero exit code if there is an error.
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Otherwise, it exits with code 0.
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BUGS
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----
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To report bugs, please visit <https://github.com/llvm/llvm-project/labels/tools:llvm-strings/>.
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