FIXHDR(C) XENIX System V FIXHDR(C)
Name
fixhdr - Changes executable binary file headers.
Syntax
fixhdr option files
Description
fixhdr changes the header of output files created by link
editors or assemblers. The kinds of modifications include
changing the format of the header, the fixed stack size, the
standalone load address, and symbol names.
Using fixhdr allows the use of binary executable files,
created under other versions or machines, by simply changing
the header information so that it is usable by the target
cpu.
These are the options to fixhdr :
-xa Change the x.out format of the header to the a.out
format.
-xb Change the x.out format of the header to the b.out
format.
-x4 Change the x.out format of the header to the
4.2BSD a.out format.
-x5 [-n] Change the x.out format of the header to 5.2 (UNIX
System V release 2) a.out format. The -n flag
causes leading underscores on symbol names to be
passed with no modifications.
-ax -c [11,86]
Change the a.out format of the header to the x.out
format. The -c flag specifies the target cpu. 11
specifies a PDP-11 cpu. 86 specifies one of the
8086 family of cpus (8086, 8088, 80186, 80286 or
80386).
-bx Change the b.out format of the header to the x.out
format.
-5x [-n] Change the 5.2 (UNIX System V release 2) a.out
format of the header to the x.out format. The -n
flag causes leading underscores on symbol names to
be passed with no modifications.
-86x Add the x.out header format to the 86rel object
module format. See 86rel(F).
-F num Add (or change) the fixed stack size specified in
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FIXHDR(C) XENIX System V FIXHDR(C)
the x.out format of the header. num must be a
hexadecimal number.
-A num Add (or change) the standalone load address
specified in the x.out format of the header. num
must be a hexadecimal number.
-M[smlh] Change the model of the x.out or 86rel format.
Model refers to the compiler model specified when
creating the binary. s refers to small model, m
refers to medium model, l refers to large model,
and h refers to huge model.
-v [2,3,5,7]
Change the version of XENIX specified in the
header. XENIX version 2 was based on UNIX Version
7.
-s s1=s2 [-s s3=s4]
Change symbol names, where symbol name s1 is
changed to s2.
-r Ensure that the resolution table is of non-zero
size.
-C cpu Set the cpu type. cpu can be 186, 286, 386, 8086,
others.
Files
/usr/bin/fixhdr
See Also
a.out(F), 86rel(F)
Notes
Give fixhdr one option at a time. If you need to make more
than one kind of modification to a file, use fixhdr on the
original file. Then use it again on the fixhdr output,
specifying the next option. Copy the original file if you
need an unmodified version as fixhdr makes the modifications
directly to the file.
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