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. This
62 option may be given more than once. Note that using this option
63 inappropriately may make the output file unusable. The wildcard
64 character * may be given at the end of sectionname. If so, then
65 any section starting with sectionname will be removed.
66 -s
68 --strip-all
69 Remove all symbols.
70 -g
72 -S
73 -d
74 --strip-debug
75 Remove debugging symbols only.
76 --strip-dwo
78 Remove the contents of all DWARF .dwo sections, leaving the
79 remaining debugging sections and all symbols intact. See the
80 description of this option in the objcopy section for more
81 information.
82 --strip-unneeded
84 Remove all symbols that are not needed for relocation processing.
85 -K symbolname
87 --keep-symbol=symbolname
88 When stripping symbols, keep symbol symbolname even if it would
89 normally be stripped. This option may be given more than once.
90 -N symbolname
92 --strip-symbol=symbolname
93 Remove symbol symbolname from the source file. This option may be
94 given more than once, and may be combined with strip options other
95 than -K.
96 -o file
98 Put the stripped output in file, rather than replacing the existing
99 file. When this argument is used, only one objfile argument may be
100 specified.
101 -p
103 --preserve-dates
104 Preserve the access and modification dates of the file.
105 -D
107 --enable-deterministic-archives
108 Operate in deterministic mode. When copying archive members and
109 writing the archive index, use zero for UIDs, GIDs, timestamps, and
110 use consistent file modes for all files.
111 If binutils was configured with --enable-deterministic-archives,
113 then this mode is on by default. It can be disabled with the -U
114 option, below.
115 -U
117 --disable-deterministic-archives
118 Do not operate in deterministic mode. This is the inverse of the
119 -D option, above: when copying archive members and writing the
120 archive index, use their actual UID, GID, timestamp, and file mode
121 values.
122 This is the default unless binutils was configured with
124 --enable-deterministic-archives.
125 -w
127 --wildcard
128 Permit regular expressions in symbolnames used in other command
129 line options. The question mark (?), asterisk (*), backslash (\)
130 and square brackets ([]) operators can be used anywhere in the
131 symbol name. If the first character of the symbol name is the
132 exclamation point (!) then the sense of the switch is reversed for
133 that symbol. For example:
134 -w -K !foo -K fo*
136 would cause strip to only keep symbols that start with the letters
138 "fo", but to discard the symbol "foo".
139 -x
141 --discard-all
142 Remove non-global symbols.
143 -X
145 --discard-locals
146 Remove compiler-generated local symbols. (These usually start with
147 L or ..)
148 --keep-file-symbols
150 When stripping a file, perhaps with --strip-debug or
151 --strip-unneeded, retain any symbols specifying source file names,
152 which would otherwise get stripped.
153 --only-keep-debug
155 Strip a file, removing contents of any sections that would not be
156 stripped by --strip-debug and leaving the debugging sections
157 intact. In ELF files, this preserves all note sections in the
158 output.
159 The intention is that this option will be used in conjunction with
161 --add-gnu-debuglink to create a two part executable. One a
162 stripped binary which will occupy less space in RAM and in a
163 distribution and the second a debugging information file which is
164 only needed if debugging abilities are required. The suggested
165 procedure to create these files is as follows:
166 1.<Link the executable as normal. Assuming that is is called>
168 "foo" then...
169 1.<Run "objcopy --only-keep-debug foo foo.dbg" to>
171 create a file containing the debugging info.
172 1.<Run "objcopy --strip-debug foo" to create a>
174 stripped executable.
175 1.<Run "objcopy --add-gnu-debuglink=foo.dbg foo">
177 to add a link to the debugging info into the stripped
178 executable.
179 Note---the choice of ".dbg" as an extension for the debug info file
181 is arbitrary. Also the "--only-keep-debug" step is optional. You
182 could instead do this:
183 1.<Link the executable as normal.>
185 1.<Copy "foo" to "foo.full">
186 1.<Run "strip --strip-debug foo">
187 1.<Run "objcopy --add-gnu-debuglink=foo.full foo">
188 i.e., the file pointed to by the --add-gnu-debuglink can be the
190 full executable. It does not have to be a file created by the
191 --only-keep-debug switch.
192 Note---this switch is only intended for use on fully linked files.
194 It does not make sense to use it on object files where the
195 debugging information may be incomplete. Besides the gnu_debuglink
196 feature currently only supports the presence of one filename
197 containing debugging information, not multiple filenames on a one-
198 per-object-file basis.
199 -V
201 --version
202 Show the version number for strip.
203 -v
205 --verbose
206 Verbose output: list all object files modified. In the case of
207 archives, strip -v lists all members of the archive.
208 @file
210 Read command-line options from file. The options read are inserted
211 in place of the original @file option. If file does not exist, or
212 cannot be read, then the option will be treated literally, and not
213 removed.
214 Options in file are separated by whitespace. A whitespace
216 character may be included in an option by surrounding the entire
217 option in either single or double quotes. Any character (including
218 a backslash) may be included by prefixing the character to be
219 included with a backslash. The file may itself contain additional
220 @file options; any such options will be processed recursively.
221
223 the Info entries for binutils.
224
226 Copyright (c) 1991-2013 Free Software Foundation, Inc.
227 Permission is granted to copy, distribute and/or modify this document
229 under the terms of the GNU Free Documentation License, Version 1.3 or
230 any later version published by the Free Software Foundation; with no
231 Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
232 Texts. A copy of the license is included in the section entitled "GNU
233 Free Documentation License".
234binutils-2.24 2020-01-29 STRIP(1)