Red Hat ENTERPRISE LINUX 4 - USING BINUTILS Instrukcja Użytkownika Pobierz pdf (Strona 22)

16 Chapter 4. objcopy

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:

-w -W !foo -W fo*

would cause objcopy to weaken all symbols that start with "fo" except for the symbol "foo".

-x

-discard-all

Do not copy non-global symbols from the source ﬁle.

-X

-discard-locals

Do not copy compiler-generated local symbols. (These usually start with L or ..)

-b byte

-byte=byte

Keep only every byteth byte of the input ﬁle (header data is not affected). byte can be in the

range from 0 to interleave-1, where interleave is given by the -i or -interleave option,

or the default of 4. This option is useful for creating ﬁles to program rom. It is typically used with

an srec output target.

-i interleave

-interleave=interleave

Only copy one out of every interleave bytes. Select which byte to copy with the -b or -byte

option. The default is 4. objcopy ignores this option if you do not specify either -b or -byte.

-p

-preserve-dates

Set the access and modiﬁcation dates of the output ﬁle to be the same as those of the input ﬁle.

-debugging

Convert debugging information, if possible. This is not the default because only certain debug-

ging formats are supported, and the conversion process can be time consuming.

-gap-fill val

Fill gaps between sections with val. This operation applies to the load address (LMA) 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 val.

-pad-to address

Pad the output ﬁle up to the load address address. This is done by increasing the size of the last

section. The extra space is ﬁlled in with the value speciﬁed by -gap-fill (default zero).

-set-start val

Set the start address of the new ﬁle to val. Not all object ﬁle formats support setting the start

address.

-change-start incr

-adjust-start incr

Change the start address by adding incr. Not all object ﬁle formats support setting the start

address.

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