1STRIP(1) GNU Development Tools STRIP(1)
2
6 strip - Discard symbols from object files.
7
9 strip [-F bfdname |--target=bfdname]
10 [-I bfdname |--input-target=bfdname]
11 [-O bfdname |--output-target=bfdname]
12 [-s|--strip-all]
13 [-S|-g|-d|--strip-debug]
14 [--strip-dwo]
15 [-K symbolname |--keep-symbol=symbolname]
16 [-N symbolname |--strip-symbol=symbolname]
17 [-w|--wildcard]
18 [-x|--discard-all] [-X |--discard-locals]
19 [-R sectionname |--remove-section=sectionname]
20 [-o file] [-p|--preserve-dates]
21 [-D|--enable-deterministic-archives]
22 [-U|--disable-deterministic-archives]
23 [--keep-file-symbols]
24 [--only-keep-debug]
25 [-v |--verbose] [-V|--version]
26 [--help] [--info]
27 objfile...
28
30 GNU strip discards all symbols from object files objfile. The list of
31 object files may include archives. At least one object file must be
32 given.
33 strip modifies the files named in its argument, rather than writing
35 modified copies under different names.
36
38 -F bfdname
39 --target=bfdname
40 Treat the original objfile as a file with the object code format
41 bfdname, and rewrite it in the same format.
42 --help
44 Show a summary of the options to strip and exit.
45 --info
47 Display a list showing all architectures and object formats
48 available.
49 -I bfdname
51 --input-target=bfdname
52 Treat the original objfile as a file with the object code format
53 bfdname.
54 -O bfdname
56 --output-target=bfdname
57 Replace objfile with a file in the output format bfdname.
58 -R sectionname
60 --remove-section=sectionname
61 Remove any section named sectionname from the output file, in
62 addition to whatever sections would otherwise be removed. This
63 option may be given more than once. Note that using this option
64 inappropriately may make the output file unusable. The wildcard
65 character * may be given at the end of sectionname. If so, then
66 any section starting with sectionname will be removed.
67 -s
69 --strip-all
70 Remove all symbols.
71 -g
73 -S
74 -d
75 --strip-debug
76 Remove debugging symbols only.
77 --strip-dwo
79 Remove the contents of all DWARF .dwo sections, leaving the
80 remaining debugging sections and all symbols intact. See the
81 description of this option in the objcopy section for more
82 information.
83 --strip-unneeded
85 Remove all symbols that are not needed for relocation processing.
86 -K symbolname
88 --keep-symbol=symbolname
89 When stripping symbols, keep symbol symbolname even if it would
90 normally be stripped. This option may be given more than once.
91 -N symbolname
93 --strip-symbol=symbolname
94 Remove symbol symbolname from the source file. This option may be
95 given more than once, and may be combined with strip options other
96 than -K.
97 -o file
99 Put the stripped output in file, rather than replacing the existing
100 file. When this argument is used, only one objfile argument may be
101 specified.
102 -p
104 --preserve-dates
105 Preserve the access and modification dates of the file.
106 -D
108 --enable-deterministic-archives
109 Operate in deterministic mode. When copying archive members and
110 writing the archive index, use zero for UIDs, GIDs, timestamps, and
111 use consistent file modes for all files.
112 If binutils was configured with --enable-deterministic-archives,
114 then this mode is on by default. It can be disabled with the -U
115 option, below.
116 -U
118 --disable-deterministic-archives
119 Do not operate in deterministic mode. This is the inverse of the
120 -D option, above: when copying archive members and writing the
121 archive index, use their actual UID, GID, timestamp, and file mode
122 values.
123 This is the default unless binutils was configured with
125 --enable-deterministic-archives.
126 -w
128 --wildcard
129 Permit regular expressions in symbolnames used in other command
130 line options. The question mark (?), asterisk (*), backslash (\)
131 and square brackets ([]) operators can be used anywhere in the
132 symbol name. If the first character of the symbol name is the
133 exclamation point (!) then the sense of the switch is reversed for
134 that symbol. For example:
135 -w -K !foo -K fo*
137 would cause strip to only keep symbols that start with the letters
139 "fo", but to discard the symbol "foo".
140 -x
142 --discard-all
143 Remove non-global symbols.
144 -X
146 --discard-locals
147 Remove compiler-generated local symbols. (These usually start with
148 L or ..)
149 --keep-file-symbols
151 When stripping a file, perhaps with --strip-debug or
152 --strip-unneeded, retain any symbols specifying source file names,
153 which would otherwise get stripped.
154 --only-keep-debug
156 Strip a file, emptying the contents of any sections that would not
157 be stripped by --strip-debug and leaving the debugging sections
158 intact. In ELF files, this preserves all the note sections in the
159 output as well.
160 Note - the section headers of the stripped sections are preserved,
162 including their sizes, but the contents of the section are
163 discarded. The section headers are preserved so that other tools
164 can match up the debuginfo file with the real executable, even if
165 that executable has been relocated to a different address space.
166 The intention is that this option will be used in conjunction with
168 --add-gnu-debuglink to create a two part executable. One a
169 stripped binary which will occupy less space in RAM and in a
170 distribution and the second a debugging information file which is
171 only needed if debugging abilities are required. The suggested
172 procedure to create these files is as follows:
173 1.<Link the executable as normal. Assuming that is is called>
175 "foo" then...
176 1.<Run "objcopy --only-keep-debug foo foo.dbg" to>
178 create a file containing the debugging info.
179 1.<Run "objcopy --strip-debug foo" to create a>
181 stripped executable.
182 1.<Run "objcopy --add-gnu-debuglink=foo.dbg foo">
184 to add a link to the debugging info into the stripped
185 executable.
186 Note---the choice of ".dbg" as an extension for the debug info file
188 is arbitrary. Also the "--only-keep-debug" step is optional. You
189 could instead do this:
190 1.<Link the executable as normal.>
192 1.<Copy "foo" to "foo.full">
193 1.<Run "strip --strip-debug foo">
194 1.<Run "objcopy --add-gnu-debuglink=foo.full foo">
195 i.e., the file pointed to by the --add-gnu-debuglink can be the
197 full executable. It does not have to be a file created by the
198 --only-keep-debug switch.
199 Note---this switch is only intended for use on fully linked files.
201 It does not make sense to use it on object files where the
202 debugging information may be incomplete. Besides the gnu_debuglink
203 feature currently only supports the presence of one filename
204 containing debugging information, not multiple filenames on a one-
205 per-object-file basis.
206 -V
208 --version
209 Show the version number for strip.
210 -v
212 --verbose
213 Verbose output: list all object files modified. In the case of
214 archives, strip -v lists all members of the archive.
215 @file
217 Read command-line options from file. The options read are inserted
218 in place of the original @file option. If file does not exist, or
219 cannot be read, then the option will be treated literally, and not
220 removed.
221 Options in file are separated by whitespace. A whitespace
223 character may be included in an option by surrounding the entire
224 option in either single or double quotes. Any character (including
225 a backslash) may be included by prefixing the character to be
226 included with a backslash. The file may itself contain additional
227 @file options; any such options will be processed recursively.
228
230 the Info entries for binutils.
231
233 Copyright (c) 1991-2015 Free Software Foundation, Inc.
234 Permission is granted to copy, distribute and/or modify this document
236 under the terms of the GNU Free Documentation License, Version 1.3 or
237 any later version published by the Free Software Foundation; with no
238 Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
239 Texts. A copy of the license is included in the section entitled "GNU
240 Free Documentation License".
241binutils-2.26 2016-01-25 STRIP(1)