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96774e78a8
The --bytes option uses the phrase "printable ASCII characters", but the description section used simply "printable characters". To avoid any confusion about locale impacts etc, this change adopts the former's phrasing in both places. It also fixes a minor grammar issue in the description. Reviewed by: MaskRay Differential Revision: https://reviews.llvm.org/D68016 llvm-svn: 372865
131 lines
2.9 KiB
ReStructuredText
131 lines
2.9 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:: --help-list
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Display an uncategorized 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 <http://llvm.org/bugs/>.
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