objcopy.1

MinGW+MSYS必备的开发工具链

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 or sections 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
When stripping symbols, keep symbol \fIsymbolname\fR even if it would
normally be stripped.  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\-\-strip\-unneeded\-symbol=\fR\fIsymbolname\fR" 4
.IX Item "--strip-unneeded-symbol=symbolname"
Do not copy symbol \fIsymbolname\fR from the source file unless it is needed
by a relocation.  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\-\-localize\-hidden\fR" 4
.IX Item "--localize-hidden"
In an \s-1ELF\s0 object, mark all symbols that have hidden or internal visibility
as local.  This option applies on top of symbol-specific localization options
such as \fB\-L\fR.
.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\-\-globalize\-symbol=\fR\fIsymbolname\fR" 4
.IX Item "--globalize-symbol=symbolname"
Give symbol \fIsymbolname\fR global scoping so that it is visible
outside of the file in which it is defined.  This option may be given
more than once.
.IP "\fB\-w\fR" 4
.IX Item "-w"
.PD 0
.IP "\fB\-\-wildcard\fR" 4
.IX Item "--wildcard"
.PD
Permit regular expressions in \fIsymbolname\fRs used in other command
line options.  The question mark (?), asterisk (*), backslash (\e) and
square brackets ([]) operators can be used anywhere in the symbol
name.  If the first character of the symbol name is the exclamation
point (!) then the sense of the switch is reversed for that symbol.
For example:
.Sp
.Vb 1
\&          -w -W !foo -W fo*
.Ve
.Sp
would cause objcopy to weaken all symbols that start with \*(L"fo\*(R"
except for the symbol \*(L"foo\*(R".
.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,