GDB/M2 (Debugging with GDB)
15.4.9.9 GDB and Modula-2
Some GDB commands have little use when debugging Modula-2 programs. Five subcommands of set print
and show print
apply specifically to C and C++: ‘vtbl
’, ‘demangle
’, ‘asm-demangle
’, ‘object
’, and ‘union
’. The first four apply to C++, and the last to the C union
type, which has no direct analogue in Modula-2.
The @
operator (see Expressions), while available with any language, is not useful with Modula-2. Its intent is to aid the debugging of dynamic arrays, which cannot be created in Modula-2 as they can in C or C++. However, because an address can be specified by an integral constant, the construct ‘{type}adrexp
’ is still useful.
In GDB scripts, the Modula-2 inequality operator #
is interpreted as the beginning of a comment. Use <>
instead.