CHECKOBJ(1)         UNIX Programmer's Manual          CHECKOBJ(1)

NAME
     checkobj - check an object file to see whether it can be
     executed

SYNTAX
     checkobj [ -s ] [ -f ] [ -40 ] [ file ... ]

DESCRIPTION
     _C_h_e_c_k_o_b_j attempts to determine whether the named files are
     valid executable binary files.  It checks for size restric-
     tions, including those due to the granularity of memory
     management on the PDP11.  It is especially useful for over-
     laid object files, where there are a number of constraints.
     If a file is too large or improperly laid out, _c_h_e_c_k_o_b_j
     attempts to point out format changes that would allow the
     program to run.

OPTIONS
     Several options control the checks:

     -s   Check for the use of separate I/D.  If the file is
          separate executable, an error is flagged, and an
          appropriate way to load for a nonseparate machine is
          suggested if possible.

     -f   Check for the use of floating point arithmetic without
          inclusion of the floating-point interpreter.

     -40  Combine the -s and -f options, to check for suitability
          for an 11/40-class PDP11.

BUGS
     The test for floating point is simple-minded.  It is based
     on the definition of ``fltused'' by the C compiler and
     ``fptrap'' in the floating-point simulator.  This test does
     not work if the object has been stripped.

DIAGNOSTICS
     The exit status is 0 if all named files are runnable with
     the specified options, nonzero otherwise.

AUTHOR
     Mike Karels, University of California, Berkeley

Printed 7/22/83                                                 1