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Add partial support for g++ code compiled with -fvtable-thunks.

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* c-valprint.c (c_val_print):  Add vtblprint support
	when using thunks.
	* cp-valprint.c (cp_is_vtbl_member):  A vtable can be an array of
	pointers (if using thunks) as well as array of structs (otherwise).
	* cp-valprint.c (vtbl_ptr_name_old, vtbl_ptr_name):  Move to global
	level, and make the latter non-static (so define_symbol can use it).
	* stabsread.c (define_symbol):  If the type being defined is a
	pointer type named "__vtbl_ptr_type", set the TYPE_NAME to that name.
	* symtab.h (VTBL_PREFIX_P):  Allow "_VT" as well as "_vt".
	* values.c (value_virtual_fn_field):  Handle thunks.
	* values.c (value_headof):  Minor efficiency hack.
	* values.c (value_headof):   Incomplete thunk support.  FIXME.
This commit is contained in:
Per Bothner
1994-05-05 00:19:33 +00:00
parent d32a92614d
commit 36a2283dad
5 changed files with 75 additions and 24 deletions
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11
gdb/c-valprint.c
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@ -146,6 +146,15 @@ c_val_print (type, valaddr, address, stream, format, deref_ref, recurse,
print_scalar_formatted (valaddr, type, format, 0, stream);
break;
}
if (vtblprint && cp_is_vtbl_ptr_type(type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if we ARE using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
print_address_demangle(extract_address (valaddr, TYPE_LENGTH (type)),
stream, demangle);
break;
}
if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_METHOD)
{
cp_print_class_method (valaddr, type, stream);
@ -290,6 +299,8 @@ c_val_print (type, valaddr, address, stream, format, deref_ref, recurse,
if (vtblprint && cp_is_vtbl_ptr_type(type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if NOT using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
print_address_demangle(*((int *) (valaddr + /* FIXME bytesex */
TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8)),
stream, demangle);