🚀 go-pugleaf

I am using C++ from gcc version 2.2.1 on a Sparc platform.

My problem is with virtual destructors.  Whenever my real destructor is
called, the program abort()'s after executing the destructor successfully.

This program illustrates the problem:

	class aaa {
	  public:
	    virtual ~aaa() = 0;};
	
	class bbb : public aaa {
	  public:
	    bbb();
	    ~bbb();};
	
	bbb::bbb() {}
	bbb::~bbb() {}

The assembler for ~bbb() has an unconditional abort() call at the end.  Is
this the correct code?  Is there an additional requirement on virtual
destructors?  Is it not legal for a destructor to be pure-virtual?

This is the assembler code for the ~bbb() routine above:

	__$_3bbb:
		!#PROLOGUE# 0
		save %sp,-112,%sp
		!#PROLOGUE# 1
		mov %i0,%l0
		st %i1,[%fp+72]
		sethi %hi(__vt$bbb),%o1
		or %o1,%lo(__vt$bbb),%o0
		st %o0,[%l0]
	L4:
		mov %l0,%o0
		ld [%fp+72],%o1
		call _abort,0
		nop
	L3:
		ret
		restore
-- 
Lee W. Cooprider				PP-ASEL/IA
Lee_Cooprider@vos.stratus.com			Skylane N2908F "Wiley"