HP SunSoft Pascal 4.0 - Manual (Page 63)

The Pascal Compiler 39
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–p and –pg
The –p and –pg options instruct the compiler to produce code that counts the
number of times each routine is called. The profiling is based on a periodic
sample taken by the system, rather than by line counters.
Using the -p Option
To generate an execution profile using the –p option:
1. Compile with the –p option.
2. Run a.out , which produces a mon.out executable file.
3. Type prof a.out . The program prints a profile.
Using the -pg Option
To generate an execution profile using the –pg option:
1. Compile with the –pg option.
2. Run a.out , which produces a gmon.out executable file, a more
sophisticated profiling tool than mon.out .
3. Type gprof a.out . The program prints a profile.
–pic , -Kpic and –PIC , -KPIC
The -pic and -PIC options cause the compiler to generate position-
independent code (PIC). One of these options should be used for objects
which are then put into shared libraries. With PIC, each reference to a global
datum is generated as a dereference of a pointer in the global offset table. Each
function call is generated in
pc -relative addressing mode through a procedure
linkage table.
The size of the global offset table is limited to 8Kbytes with -pic . The -PIC
option expands the global offset table to handle 32-bit addresses for those rare
cases where there are too many data objects for
-pic .
For more information on PIC , see the section on shared libraries in the Solaris
documentation.