CHECKOBJ(1) General Commands Manual CHECKOBJ(1)
NAME
checkobj - check an object file to see whether it can be executed
SYNTAX
checkobj [ -s ] [ -f ] [ -40 ] [ file ... ]
DESCRIPTION
Checkobj attempts to determine whether the named files are valid executable binary files. It checks for size restrictions, including those
due to the granularity of memory management on the PDP11. It is especially useful for overlaid object files, where there are a number of
constraints. If a file is too large or improperly laid out, checkobj 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 float-
ing-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
3rd Berkeley Distribution CHECKOBJ(1)
