8.1 C++ Class Names

In C++, a class name which is declared with class, struct, or union, is not only a tag, as in C, but also a type name. Thus there should be stabs with both ‘t’ and ‘T’ symbol descriptors (see Typedefs).

To save space, there is a special abbreviation for this case. If the ‘T’ symbol descriptor is followed by ‘t’, then the stab defines both a type name and a tag.

For example, the C++ code

struct foo {int x;};

can be represented as either

.stabs "foo:T19=s4x:1,0,32;;",128,0,0,0       # 128 is N_LSYM
.stabs "foo:t19",128,0,0,0

or

.stabs "foo:Tt19=s4x:1,0,32;;",128,0,0,0