HP aC++/HP C A.06.28 Programmer's Guide Integrity servers (769150-001, March 2014)

To suppress expansion of inline functions, use the +d option.
-g1
Like the -g option, the -g1 option causes the compiler to generate minimal information for the
debugger. It uses an algorithm that attempts to reduce duplication of debug information. To suppress
expansion of inline functions, use the +d option.
Differences Between -g, -g0, and -g1 Options
The -g, -g0, and -g1 options generate debug information. The difference is that the -g0 option
emits full debug information about every class referenced in a file, which can result in some
redundant information.
The -g and -g1 options emit a subset of this debug information, thereby decreasing the size of
your object file. If you compile your entire application with -g or -g1, no debugger functionality
is lost.
NOTE: If you compile part of an application with -g or -g1 and part with debug off, (that is,
with neither the -g, the -g0, nor the -g1 option) the resulting executable may not contain complete
debug information. You will still be able to run the executable, but in the debugger, some classes
may appear to have no members.
When to use -g, -g0, and -g1
Use -g or -g1 when you are compiling your entire application with debug on and your application
is large, for example, greater than 1 MB.
Use -g0 when either of the following is true:
• You are compiling only a portion of your application with debug on, for example, a subset
of the files in your application.
• You are compiling your entire application with debug on and your application is not very
large, for example, less than 1 MB.
-g, -g1 Algorithm
In general, the compiler looks for the first non-inline, non-pure (non-zero) virtual function in order
to emit debug information for a class.If there are no virtual member functions, the compiler looks
for the first non-inline member function.
If there are no non-inline member functions, debug information is always generated.
A problem occurs if all functions are inline; in this case, no debug information is generated.
+macro_debug
This option controls the emission of macro debug information into the object file.
Set +macro_debug to one of the following required options:
ref Emits debug information only for referenced macros. This is the default for -g, -g1, or
-g0.
all Emits debug information for all macros. This option can cause a significant increase in
object file size.
none Does not emit any macro debug information.
One of the -g options (-g, -g0, or -g1) must be used to enable the +macro_debug option.
36 Command-Line Options