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| .\" ======================================================================== | |
| .\" | |
| .IX Title "OBJCOPY 1" | |
| .TH OBJCOPY 1 "2002-08-05" "binutils-2.12.91" "GNU Development Tools" | |
| .UC | |
| .SH "NAME" | |
| objcopy \- copy and translate object files | |
| .SH "SYNOPSIS" | |
| .IX Header "SYNOPSIS" | |
| objcopy [\fB\-F\fR \fIbfdname\fR|\fB\-\-target=\fR\fIbfdname\fR] | |
| [\fB\-I\fR \fIbfdname\fR|\fB\-\-input\-target=\fR\fIbfdname\fR] | |
| [\fB\-O\fR \fIbfdname\fR|\fB\-\-output\-target=\fR\fIbfdname\fR] | |
| [\fB\-B\fR \fIbfdarch\fR|\fB\-\-binary\-architecture=\fR\fIbfdarch\fR] | |
| [\fB\-S\fR|\fB\-\-strip\-all\fR] [\fB\-g\fR|\fB\-\-strip\-debug\fR] | |
| [\fB\-K\fR \fIsymbolname\fR|\fB\-\-keep\-symbol=\fR\fIsymbolname\fR] | |
| [\fB\-N\fR \fIsymbolname\fR|\fB\-\-strip\-symbol=\fR\fIsymbolname\fR] | |
| [\fB\-G\fR \fIsymbolname\fR|\fB\-\-keep\-global\-symbol=\fR\fIsymbolname\fR] | |
| [\fB\-L\fR \fIsymbolname\fR|\fB\-\-localize\-symbol=\fR\fIsymbolname\fR] | |
| [\fB\-W\fR \fIsymbolname\fR|\fB\-\-weaken\-symbol=\fR\fIsymbolname\fR] | |
| [\fB\-x\fR|\fB\-\-discard\-all\fR] [\fB\-X\fR|\fB\-\-discard\-locals\fR] | |
| [\fB\-b\fR \fIbyte\fR|\fB\-\-byte=\fR\fIbyte\fR] | |
| [\fB\-i\fR \fIinterleave\fR|\fB\-\-interleave=\fR\fIinterleave\fR] | |
| [\fB\-j\fR \fIsectionname\fR|\fB\-\-only\-section=\fR\fIsectionname\fR] | |
| [\fB\-R\fR \fIsectionname\fR|\fB\-\-remove\-section=\fR\fIsectionname\fR] | |
| [\fB\-p\fR|\fB\-\-preserve\-dates\fR] | |
| [\fB\-\-debugging\fR] | |
| [\fB\-\-gap\-fill=\fR\fIval\fR] [\fB\-\-pad\-to=\fR\fIaddress\fR] | |
| [\fB\-\-set\-start=\fR\fIval\fR] [\fB\-\-adjust\-start=\fR\fIincr\fR] | |
| [\fB\-\-change\-addresses=\fR\fIincr\fR] | |
| [\fB\-\-change\-section\-address\fR \fIsection\fR{=,+,\-}\fIval\fR] | |
| [\fB\-\-change\-section\-lma\fR \fIsection\fR{=,+,\-}\fIval\fR] | |
| [\fB\-\-change\-section\-vma\fR \fIsection\fR{=,+,\-}\fIval\fR] | |
| [\fB\-\-change\-warnings\fR] [\fB\-\-no\-change\-warnings\fR] | |
| [\fB\-\-set\-section\-flags\fR \fIsection\fR=\fIflags\fR] | |
| [\fB\-\-add\-section\fR \fIsectionname\fR=\fIfilename\fR] | |
| [\fB\-\-rename\-section\fR \fIoldname\fR=\fInewname\fR[,\fIflags\fR]] | |
| [\fB\-\-change\-leading\-char\fR ] [\fB\-\-remove\-leading\-char\fR] | |
| [\fB\-\-srec\-len=\fR\fIival\fR ] [\fB\-\-srec\-forceS3\fR] | |
| [\fB\-\-redefine\-sym\fR \fIold\fR=\fInew\fR ] | |
| [\fB\-\-weaken\fR] | |
| [\fB\-\-keep\-symbols=\fR\fIfilename\fR] | |
| [\fB\-\-strip\-symbols=\fR\fIfilename\fR] | |
| [\fB\-\-keep\-global\-symbols=\fR\fIfilename\fR] | |
| [\fB\-\-localize\-symbols=\fR\fIfilename\fR] | |
| [\fB\-\-weaken\-symbols=\fR\fIfilename\fR] | |
| [\fB\-\-alt\-machine\-code=\fR\fIindex\fR] | |
| [\fB\-v\fR|\fB\-\-verbose\fR] | |
| [\fB\-V\fR|\fB\-\-version\fR] | |
| [\fB\-\-help\fR] | |
| \fIinfile\fR [\fIoutfile\fR] | |
| .SH "DESCRIPTION" | |
| .IX Header "DESCRIPTION" | |
| The \s-1GNU\s0 \fBobjcopy\fR utility copies the contents of an object | |
| file to another. \fBobjcopy\fR uses the \s-1GNU\s0 \s-1BFD\s0 Library to | |
| read and write the object files. It can write the destination object | |
| file in a format different from that of the source object file. The | |
| exact behavior of \fBobjcopy\fR is controlled by command-line options. | |
| Note that \fBobjcopy\fR should be able to copy a fully linked file | |
| between any two formats. However, copying a relocatable object file | |
| between any two formats may not work as expected. | |
| .PP | |
| \&\fBobjcopy\fR creates temporary files to do its translations and | |
| deletes them afterward. \fBobjcopy\fR uses \s-1BFD\s0 to do all its | |
| translation work; it has access to all the formats described in \s-1BFD\s0 | |
| and thus is able to recognize most formats without being told | |
| explicitly. | |
| .PP | |
| \&\fBobjcopy\fR can be used to generate S\-records by using an output | |
| target of \fBsrec\fR (e.g., use \fB\-O srec\fR). | |
| .PP | |
| \&\fBobjcopy\fR can be used to generate a raw binary file by using an | |
| output target of \fBbinary\fR (e.g., use \fB\-O binary\fR). When | |
| \&\fBobjcopy\fR generates a raw binary file, it will essentially produce | |
| a memory dump of the contents of the input object file. All symbols and | |
| relocation information will be discarded. The memory dump will start at | |
| the load address of the lowest section copied into the output file. | |
| .PP | |
| When generating an S\-record or a raw binary file, it may be helpful to | |
| use \fB\-S\fR to remove sections containing debugging information. In | |
| some cases \fB\-R\fR will be useful to remove sections which contain | |
| information that is not needed by the binary file. | |
| .PP | |
| Note \- \fBobjcopy\fR is not able to change the endianness of its input | |
| files. If the input format has an endianness, (some formats do not), | |
| \&\fBobjcopy\fR can only copy the inputs into file formats that have the | |
| same endianness or which have no endianness (eg \fBsrec\fR). | |
| .SH "OPTIONS" | |
| .IX Header "OPTIONS" | |
| .IP "\fIinfile\fR" 4 | |
| .IX Item "infile" | |
| .PD 0 | |
| .IP "\fIoutfile\fR" 4 | |
| .IX Item "outfile" | |
| .PD | |
| The input and output files, respectively. | |
| If you do not specify \fIoutfile\fR, \fBobjcopy\fR creates a | |
| temporary file and destructively renames the result with | |
| the name of \fIinfile\fR. | |
| .IP "\fB\-I\fR \fIbfdname\fR" 4 | |
| .IX Item "-I bfdname" | |
| .PD 0 | |
| .IP "\fB\-\-input\-target=\fR\fIbfdname\fR" 4 | |
| .IX Item "--input-target=bfdname" | |
| .PD | |
| Consider the source file's object format to be \fIbfdname\fR, rather than | |
| attempting to deduce it. | |
| .IP "\fB\-O\fR \fIbfdname\fR" 4 | |
| .IX Item "-O bfdname" | |
| .PD 0 | |
| .IP "\fB\-\-output\-target=\fR\fIbfdname\fR" 4 | |
| .IX Item "--output-target=bfdname" | |
| .PD | |
| Write the output file using the object format \fIbfdname\fR. | |
| .IP "\fB\-F\fR \fIbfdname\fR" 4 | |
| .IX Item "-F bfdname" | |
| .PD 0 | |
| .IP "\fB\-\-target=\fR\fIbfdname\fR" 4 | |
| .IX Item "--target=bfdname" | |
| .PD | |
| Use \fIbfdname\fR as the object format for both the input and the output | |
| file; i.e., simply transfer data from source to destination with no | |
| translation. | |
| .IP "\fB\-B\fR \fIbfdarch\fR" 4 | |
| .IX Item "-B bfdarch" | |
| .PD 0 | |
| .IP "\fB\-\-binary\-architecture=\fR\fIbfdarch\fR" 4 | |
| .IX Item "--binary-architecture=bfdarch" | |
| .PD | |
| Useful when transforming a raw binary input file into an object file. | |
| In this case the output architecture can be set to \fIbfdarch\fR. This | |
| option will be ignored if the input file has a known \fIbfdarch\fR. You | |
| can access this binary data inside a program by referencing the special | |
| symbols that are created by the conversion process. These symbols are | |
| called _binary_\fIobjfile\fR_start, _binary_\fIobjfile\fR_end and | |
| _binary_\fIobjfile\fR_size. e.g. you can transform a picture file into | |
| an object file and then access it in your code using these symbols. | |
| .IP "\fB\-j\fR \fIsectionname\fR" 4 | |
| .IX Item "-j sectionname" | |
| .PD 0 | |
| .IP "\fB\-\-only\-section=\fR\fIsectionname\fR" 4 | |
| .IX Item "--only-section=sectionname" | |
| .PD | |
| Copy only the named section from the input file to the output file. | |
| This option may be given more than once. Note that using this option | |
| inappropriately may make the output file unusable. | |
| .IP "\fB\-R\fR \fIsectionname\fR" 4 | |
| .IX Item "-R sectionname" | |
| .PD 0 | |
| .IP "\fB\-\-remove\-section=\fR\fIsectionname\fR" 4 | |
| .IX Item "--remove-section=sectionname" | |
| .PD | |
| Remove any section named \fIsectionname\fR from the output file. This | |
| option may be given more than once. Note that using this option | |
| inappropriately may make the output file unusable. | |
| .IP "\fB\-S\fR" 4 | |
| .IX Item "-S" | |
| .PD 0 | |
| .IP "\fB\-\-strip\-all\fR" 4 | |
| .IX Item "--strip-all" | |
| .PD | |
| Do not copy relocation and symbol information from the source file. | |
| .IP "\fB\-g\fR" 4 | |
| .IX Item "-g" | |
| .PD 0 | |
| .IP "\fB\-\-strip\-debug\fR" 4 | |
| .IX Item "--strip-debug" | |
| .PD | |
| Do not copy debugging symbols from the source file. | |
| .IP "\fB\-\-strip\-unneeded\fR" 4 | |
| .IX Item "--strip-unneeded" | |
| Strip all symbols that are not needed for relocation processing. | |
| .IP "\fB\-K\fR \fIsymbolname\fR" 4 | |
| .IX Item "-K symbolname" | |
| .PD 0 | |
| .IP "\fB\-\-keep\-symbol=\fR\fIsymbolname\fR" 4 | |
| .IX Item "--keep-symbol=symbolname" | |
| .PD | |
| Copy only symbol \fIsymbolname\fR from the source file. This option may | |
| be given more than once. | |
| .IP "\fB\-N\fR \fIsymbolname\fR" 4 | |
| .IX Item "-N symbolname" | |
| .PD 0 | |
| .IP "\fB\-\-strip\-symbol=\fR\fIsymbolname\fR" 4 | |
| .IX Item "--strip-symbol=symbolname" | |
| .PD | |
| Do not copy symbol \fIsymbolname\fR from the source file. This option | |
| may be given more than once. | |
| .IP "\fB\-G\fR \fIsymbolname\fR" 4 | |
| .IX Item "-G symbolname" | |
| .PD 0 | |
| .IP "\fB\-\-keep\-global\-symbol=\fR\fIsymbolname\fR" 4 | |
| .IX Item "--keep-global-symbol=symbolname" | |
| .PD | |
| Keep only symbol \fIsymbolname\fR global. Make all other symbols local | |
| to the file, so that they are not visible externally. This option may | |
| be given more than once. | |
| .IP "\fB\-L\fR \fIsymbolname\fR" 4 | |
| .IX Item "-L symbolname" | |
| .PD 0 | |
| .IP "\fB\-\-localize\-symbol=\fR\fIsymbolname\fR" 4 | |
| .IX Item "--localize-symbol=symbolname" | |
| .PD | |
| Make symbol \fIsymbolname\fR local to the file, so that it is not | |
| visible externally. This option may be given more than once. | |
| .IP "\fB\-W\fR \fIsymbolname\fR" 4 | |
| .IX Item "-W symbolname" | |
| .PD 0 | |
| .IP "\fB\-\-weaken\-symbol=\fR\fIsymbolname\fR" 4 | |
| .IX Item "--weaken-symbol=symbolname" | |
| .PD | |
| Make symbol \fIsymbolname\fR weak. This option may be given more than once. | |
| .IP "\fB\-x\fR" 4 | |
| .IX Item "-x" | |
| .PD 0 | |
| .IP "\fB\-\-discard\-all\fR" 4 | |
| .IX Item "--discard-all" | |
| .PD | |
| Do not copy non-global symbols from the source file. | |
| .IP "\fB\-X\fR" 4 | |
| .IX Item "-X" | |
| .PD 0 | |
| .IP "\fB\-\-discard\-locals\fR" 4 | |
| .IX Item "--discard-locals" | |
| .PD | |
| Do not copy compiler-generated local symbols. | |
| (These usually start with \fBL\fR or \fB.\fR.) | |
| .IP "\fB\-b\fR \fIbyte\fR" 4 | |
| .IX Item "-b byte" | |
| .PD 0 | |
| .IP "\fB\-\-byte=\fR\fIbyte\fR" 4 | |
| .IX Item "--byte=byte" | |
| .PD | |
| Keep only every \fIbyte\fRth byte of the input file (header data is not | |
| affected). \fIbyte\fR can be in the range from 0 to \fIinterleave\fR\-1, | |
| where \fIinterleave\fR is given by the \fB\-i\fR or \fB\-\-interleave\fR | |
| option, or the default of 4. This option is useful for creating files | |
| to program \s-1ROM\s0. It is typically used with an \f(CW\*(C`srec\*(C'\fR output | |
| target. | |
| .IP "\fB\-i\fR \fIinterleave\fR" 4 | |
| .IX Item "-i interleave" | |
| .PD 0 | |
| .IP "\fB\-\-interleave=\fR\fIinterleave\fR" 4 | |
| .IX Item "--interleave=interleave" | |
| .PD | |
| Only copy one out of every \fIinterleave\fR bytes. Select which byte to | |
| copy with the \fB\-b\fR or \fB\-\-byte\fR option. The default is 4. | |
| \&\fBobjcopy\fR ignores this option if you do not specify either \fB\-b\fR or | |
| \&\fB\-\-byte\fR. | |
| .IP "\fB\-p\fR" 4 | |
| .IX Item "-p" | |
| .PD 0 | |
| .IP "\fB\-\-preserve\-dates\fR" 4 | |
| .IX Item "--preserve-dates" | |
| .PD | |
| Set the access and modification dates of the output file to be the same | |
| as those of the input file. | |
| .IP "\fB\-\-debugging\fR" 4 | |
| .IX Item "--debugging" | |
| Convert debugging information, if possible. This is not the default | |
| because only certain debugging formats are supported, and the | |
| conversion process can be time consuming. | |
| .IP "\fB\-\-gap\-fill\fR \fIval\fR" 4 | |
| .IX Item "--gap-fill val" | |
| Fill gaps between sections with \fIval\fR. This operation applies to | |
| the \fIload address\fR (\s-1LMA\s0) of the sections. It is done by increasing | |
| the size of the section with the lower address, and filling in the extra | |
| space created with \fIval\fR. | |
| .IP "\fB\-\-pad\-to\fR \fIaddress\fR" 4 | |
| .IX Item "--pad-to address" | |
| Pad the output file up to the load address \fIaddress\fR. This is | |
| done by increasing the size of the last section. The extra space is | |
| filled in with the value specified by \fB\-\-gap\-fill\fR (default zero). | |
| .IP "\fB\-\-set\-start\fR \fIval\fR" 4 | |
| .IX Item "--set-start val" | |
| Set the start address of the new file to \fIval\fR. Not all object file | |
| formats support setting the start address. | |
| .IP "\fB\-\-change\-start\fR \fIincr\fR" 4 | |
| .IX Item "--change-start incr" | |
| .PD 0 | |
| .IP "\fB\-\-adjust\-start\fR \fIincr\fR" 4 | |
| .IX Item "--adjust-start incr" | |
| .PD | |
| Change the start address by adding \fIincr\fR. Not all object file | |
| formats support setting the start address. | |
| .IP "\fB\-\-change\-addresses\fR \fIincr\fR" 4 | |
| .IX Item "--change-addresses incr" | |
| .PD 0 | |
| .IP "\fB\-\-adjust\-vma\fR \fIincr\fR" 4 | |
| .IX Item "--adjust-vma incr" | |
| .PD | |
| Change the \s-1VMA\s0 and \s-1LMA\s0 addresses of all sections, as well as the start | |
| address, by adding \fIincr\fR. Some object file formats do not permit | |
| section addresses to be changed arbitrarily. Note that this does not | |
| relocate the sections; if the program expects sections to be loaded at a | |
| certain address, and this option is used to change the sections such | |
| that they are loaded at a different address, the program may fail. | |
| .IP "\fB\-\-change\-section\-address\fR \fIsection\fR\fB{=,+,\-}\fR\fIval\fR" 4 | |
| .IX Item "--change-section-address section{=,+,-}val" | |
| .PD 0 | |
| .IP "\fB\-\-adjust\-section\-vma\fR \fIsection\fR\fB{=,+,\-}\fR\fIval\fR" 4 | |
| .IX Item "--adjust-section-vma section{=,+,-}val" | |
| .PD | |
| Set or change both the \s-1VMA\s0 address and the \s-1LMA\s0 address of the named | |
| \&\fIsection\fR. If \fB=\fR is used, the section address is set to | |
| \&\fIval\fR. Otherwise, \fIval\fR is added to or subtracted from the | |
| section address. See the comments under \fB\-\-change\-addresses\fR, | |
| above. If \fIsection\fR does not exist in the input file, a warning will | |
| be issued, unless \fB\-\-no\-change\-warnings\fR is used. | |
| .IP "\fB\-\-change\-section\-lma\fR \fIsection\fR\fB{=,+,\-}\fR\fIval\fR" 4 | |
| .IX Item "--change-section-lma section{=,+,-}val" | |
| Set or change the \s-1LMA\s0 address of the named \fIsection\fR. The \s-1LMA\s0 | |
| address is the address where the section will be loaded into memory at | |
| program load time. Normally this is the same as the \s-1VMA\s0 address, which | |
| is the address of the section at program run time, but on some systems, | |
| especially those where a program is held in \s-1ROM\s0, the two can be | |
| different. If \fB=\fR is used, the section address is set to | |
| \&\fIval\fR. Otherwise, \fIval\fR is added to or subtracted from the | |
| section address. See the comments under \fB\-\-change\-addresses\fR, | |
| above. If \fIsection\fR does not exist in the input file, a warning | |
| will be issued, unless \fB\-\-no\-change\-warnings\fR is used. | |
| .IP "\fB\-\-change\-section\-vma\fR \fIsection\fR\fB{=,+,\-}\fR\fIval\fR" 4 | |
| .IX Item "--change-section-vma section{=,+,-}val" | |
| Set or change the \s-1VMA\s0 address of the named \fIsection\fR. The \s-1VMA\s0 | |
| address is the address where the section will be located once the | |
| program has started executing. Normally this is the same as the \s-1LMA\s0 | |
| address, which is the address where the section will be loaded into | |
| memory, but on some systems, especially those where a program is held in | |
| \&\s-1ROM\s0, the two can be different. If \fB=\fR is used, the section address | |
| is set to \fIval\fR. Otherwise, \fIval\fR is added to or subtracted | |
| from the section address. See the comments under | |
| \&\fB\-\-change\-addresses\fR, above. If \fIsection\fR does not exist in | |
| the input file, a warning will be issued, unless | |
| \&\fB\-\-no\-change\-warnings\fR is used. | |
| .IP "\fB\-\-change\-warnings\fR" 4 | |
| .IX Item "--change-warnings" | |
| .PD 0 | |
| .IP "\fB\-\-adjust\-warnings\fR" 4 | |
| .IX Item "--adjust-warnings" | |
| .PD | |
| If \fB\-\-change\-section\-address\fR or \fB\-\-change\-section\-lma\fR or | |
| \&\fB\-\-change\-section\-vma\fR is used, and the named section does not | |
| exist, issue a warning. This is the default. | |
| .IP "\fB\-\-no\-change\-warnings\fR" 4 | |
| .IX Item "--no-change-warnings" | |
| .PD 0 | |
| .IP "\fB\-\-no\-adjust\-warnings\fR" 4 | |
| .IX Item "--no-adjust-warnings" | |
| .PD | |
| Do not issue a warning if \fB\-\-change\-section\-address\fR or | |
| \&\fB\-\-adjust\-section\-lma\fR or \fB\-\-adjust\-section\-vma\fR is used, even | |
| if the named section does not exist. | |
| .IP "\fB\-\-set\-section\-flags\fR \fIsection\fR\fB=\fR\fIflags\fR" 4 | |
| .IX Item "--set-section-flags section=flags" | |
| Set the flags for the named section. The \fIflags\fR argument is a | |
| comma separated string of flag names. The recognized names are | |
| \&\fBalloc\fR, \fBcontents\fR, \fBload\fR, \fBnoload\fR, | |
| \&\fBreadonly\fR, \fBcode\fR, \fBdata\fR, \fBrom\fR, \fBshare\fR, and | |
| \&\fBdebug\fR. You can set the \fBcontents\fR flag for a section which | |
| does not have contents, but it is not meaningful to clear the | |
| \&\fBcontents\fR flag of a section which does have contents\*(--just remove | |
| the section instead. Not all flags are meaningful for all object file | |
| formats. | |
| .IP "\fB\-\-add\-section\fR \fIsectionname\fR\fB=\fR\fIfilename\fR" 4 | |
| .IX Item "--add-section sectionname=filename" | |
| Add a new section named \fIsectionname\fR while copying the file. The | |
| contents of the new section are taken from the file \fIfilename\fR. 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. | |
| .IP "\fB\-\-rename\-section\fR \fIoldname\fR\fB=\fR\fInewname\fR\fB[,\fR\fIflags\fR\fB]\fR" 4 | |
| .IX Item "--rename-section oldname=newname[,flags]" | |
| Rename a section from \fIoldname\fR to \fInewname\fR, optionally | |
| changing the section's flags to \fIflags\fR in the process. This has | |
| the advantage over usng a linker script to perform the rename in that | |
| the output stays as an object file and does not become a linked | |
| executable. | |
| .Sp | |
| This option is particularly helpful when the input format is binary, | |
| since this will always create a section called .data. If for example, | |
| you wanted instead to create a section called .rodata containing binary | |
| data you could use the following command line to achieve it: | |
| .Sp | |
| .Vb 3 | |
| \& objcopy -I binary -O <output_format> -B <architecture> \e | |
| \& --rename-section .data=.rodata,alloc,load,readonly,data,contents \e | |
| \& <input_binary_file> <output_object_file> | |
| .Ve | |
| .IP "\fB\-\-change\-leading\-char\fR" 4 | |
| .IX Item "--change-leading-char" | |
| Some object file formats use special characters at the start of | |
| symbols. The most common such character is underscore, which compilers | |
| often add before every symbol. This option tells \fBobjcopy\fR to | |
| change the leading character of every symbol when it converts between | |
| object file formats. If the object file formats use the same leading | |
| character, this option has no effect. Otherwise, it will add a | |
| character, or remove a character, or change a character, as | |
| appropriate. | |
| .IP "\fB\-\-remove\-leading\-char\fR" 4 | |
| .IX Item "--remove-leading-char" | |
| If the first character of a global symbol is a special symbol leading | |
| character used by the object file format, remove the character. The | |
| most common symbol leading character is underscore. This option will | |
| remove a leading underscore from all global symbols. This can be useful | |
| if you want to link together objects of different file formats with | |
| different conventions for symbol names. This is different from | |
| \&\fB\-\-change\-leading\-char\fR because it always changes the symbol name | |
| when appropriate, regardless of the object file format of the output | |
| file. | |
| .IP "\fB\-\-srec\-len=\fR\fIival\fR" 4 | |
| .IX Item "--srec-len=ival" | |
| Meaningful only for srec output. Set the maximum length of the Srecords | |
| being produced to \fIival\fR. This length covers both address, data and | |
| crc fields. | |
| .IP "\fB\-\-srec\-forceS3\fR" 4 | |
| .IX Item "--srec-forceS3" | |
| Meaningful only for srec output. Avoid generation of S1/S2 records, | |
| creating S3\-only record format. | |
| .IP "\fB\-\-redefine\-sym\fR \fIold\fR\fB=\fR\fInew\fR" 4 | |
| .IX Item "--redefine-sym old=new" | |
| Change the name of a symbol \fIold\fR, to \fInew\fR. This can be useful | |
| when one is trying link two things together for which you have no | |
| source, and there are name collisions. | |
| .IP "\fB\-\-weaken\fR" 4 | |
| .IX Item "--weaken" | |
| Change all global symbols in the file to be weak. This can be useful | |
| when building an object which will be linked against other objects using | |
| the \fB\-R\fR option to the linker. This option is only effective when | |
| using an object file format which supports weak symbols. | |
| .IP "\fB\-\-keep\-symbols=\fR\fIfilename\fR" 4 | |
| .IX Item "--keep-symbols=filename" | |
| Apply \fB\-\-keep\-symbol\fR option to each symbol listed in the file | |
| \&\fIfilename\fR. \fIfilename\fR is simply a flat file, with one symbol | |
| name per line. Line comments may be introduced by the hash character. | |
| This option may be given more than once. | |
| .IP "\fB\-\-strip\-symbols=\fR\fIfilename\fR" 4 | |
| .IX Item "--strip-symbols=filename" | |
| Apply \fB\-\-strip\-symbol\fR option to each symbol listed in the file | |
| \&\fIfilename\fR. \fIfilename\fR is simply a flat file, with one symbol | |
| name per line. Line comments may be introduced by the hash character. | |
| This option may be given more than once. | |
| .IP "\fB\-\-keep\-global\-symbols=\fR\fIfilename\fR" 4 | |
| .IX Item "--keep-global-symbols=filename" | |
| Apply \fB\-\-keep\-global\-symbol\fR option to each symbol listed in the | |
| file \fIfilename\fR. \fIfilename\fR is simply a flat file, with one | |
| symbol name per line. Line comments may be introduced by the hash | |
| character. This option may be given more than once. | |
| .IP "\fB\-\-localize\-symbols=\fR\fIfilename\fR" 4 | |
| .IX Item "--localize-symbols=filename" | |
| Apply \fB\-\-localize\-symbol\fR option to each symbol listed in the file | |
| \&\fIfilename\fR. \fIfilename\fR is simply a flat file, with one symbol | |
| name per line. Line comments may be introduced by the hash character. | |
| This option may be given more than once. | |
| .IP "\fB\-\-weaken\-symbols=\fR\fIfilename\fR" 4 | |
| .IX Item "--weaken-symbols=filename" | |
| Apply \fB\-\-weaken\-symbol\fR option to each symbol listed in the file | |
| \&\fIfilename\fR. \fIfilename\fR is simply a flat file, with one symbol | |
| name per line. Line comments may be introduced by the hash character. | |
| This option may be given more than once. | |
| .IP "\fB\-\-alt\-machine\-code=\fR\fIindex\fR" 4 | |
| .IX Item "--alt-machine-code=index" | |
| If the output architecture has alternate machine codes, use the | |
| \&\fIindex\fRth code instead of the default one. This is useful in case | |
| a machine is assigned an official code and the tool-chain adopts the | |
| new code, but other applications still depend on the original code | |
| being used. | |
| .IP "\fB\-V\fR" 4 | |
| .IX Item "-V" | |
| .PD 0 | |
| .IP "\fB\-\-version\fR" 4 | |
| .IX Item "--version" | |
| .PD | |
| Show the version number of \fBobjcopy\fR. | |
| .IP "\fB\-v\fR" 4 | |
| .IX Item "-v" | |
| .PD 0 | |
| .IP "\fB\-\-verbose\fR" 4 | |
| .IX Item "--verbose" | |
| .PD | |
| Verbose output: list all object files modified. In the case of | |
| archives, \fBobjcopy \-V\fR lists all members of the archive. | |
| .IP "\fB\-\-help\fR" 4 | |
| .IX Item "--help" | |
| Show a summary of the options to \fBobjcopy\fR. | |
| .SH "SEE ALSO" | |
| .IX Header "SEE ALSO" | |
| \&\fIld\fR\|(1), \fIobjdump\fR\|(1), and the Info entries for \fIbinutils\fR. | |
| .SH "COPYRIGHT" | |
| .IX Header "COPYRIGHT" | |
| Copyright (c) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002 Free Software Foundation, Inc. | |
| .PP | |
| Permission is granted to copy, distribute and/or modify this document | |
| under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.1 | |
| or any later version published by the Free Software Foundation; | |
| with no Invariant Sections, with no Front-Cover Texts, and with no | |
| Back-Cover Texts. A copy of the license is included in the | |
| section entitled \*(L"\s-1GNU\s0 Free Documentation License\*(R". |