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DESCRIPTION

A program may be separated into more than one .p file. Pc will compile a number of argument .p files into object files (with the extension .o in place of .p). Object files may then be loaded into an executable a.out file. Exactly one object file must supply a program statement to successfully create an executable a.out file. The rest of the files must consist only of declarations which logically nest within the program. References to objects shared between separately compiled files are allowed if the objects are declared in included header files, whose names must end with .h. Header files may only be included at the outermost level, and thus declare only globally available objects. To allow functions and procedures to be declared, an external directive has been added, whose use is similar to the forward directive but restricted to appear only in .h files. Function and procedure bodies may not appear in .h files. A binding phase of the compiler checks that declarations are used consistently, to enforce the type checking rules of Pascal.

Object files created by other language processors may be loaded together with object files created by pc. The functions and procedures they define must have been declared in .h files included by all the .p files which call those routines. Calling conventions are as in C, with var parameters passed by address.

See the Berkeley Pascal User's Manual for details.

The following options have the same meaning as in cc(1) and f77(1). See ld(1) for load-time options.

-c

Suppress loading and produce `.o' file(s) from source file(s).

-g

Have the compiler produce additional symbol table information for dbx(1).

-w

Suppress warning messages.

-p

Prepare object files for profiling, see prof(1).

-O

Invoke an object-code improver.

-S

Compile the named program, and leave the assembler-language output on the corresponding file suffixed `.s'. (No `.o' is created.).

-ooutput

Name the final output file output instead of a.out.

The following options are peculiar to pc.

-C

Compile code to perform runtime checks, verify assert calls, and initialize all variables to zero as in pi.

-b

Block buffer the file output.

-i

Produce a listing for the specified procedures, functions and include files.

-l

Make a program listing during translation.

-s

Accept standard Pascal only; non-standard constructs cause warning diagnostics.

-t directory

Use the given directory for compiler temporary files.

-z

Allow execution profiling with pxp by generating statement counters, and arranging for the creation of the profile data file pmon.out when the resulting object is executed.

Other arguments are taken to be loader option arguments, perhaps libraries of pc compatible routines. Certain flags can also be controlled in comments within the program as described in the Berkeley Pascal User's Manual.

pc