mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-02-04 15:40:31 +08:00
winnt-cxx.c (i386_pe_type_dllimport_p): Don't ignore dllimport attribute of virtual methods.
gcc * config/i386/winnt-cxx.c (i386_pe_type_dllimport_p): Don't ignore dllimport attribute of virtual methods. gcc/cp * class.c (check_for_override): Don't remove dllmport attribute of virtual methods. gcc/testsuite * g++.dg/ext/dllimport12.C: Update comments From-SVN: r123492
This commit is contained in:
Danny Smith
Danny Smith
parent
df1a0dbb1e
commit
6acd883864
@ -1,3 +1,8 @@
|
||||
2007-04-04 Danny Smith <dannysmith.users.sourceforge.net>
|
||||
|
||||
* config/i386/winnt-cxx.c (i386_pe_type_dllimport_p): Don't ignore
|
||||
dllimport attribute of virtual methods.
|
||||
|
||||
2007-04-04 Chen Liqin <liqin@sunnorth.com.cn>
|
||||
|
||||
* config/score/crti.asm: Change _bss_start to __bss_start.
|
||||
|
||||
@ -38,66 +38,43 @@ Boston, MA 02110-1301, USA. */
|
||||
bool
|
||||
i386_pe_type_dllimport_p (tree decl)
|
||||
{
|
||||
gcc_assert (TREE_CODE (decl) == VAR_DECL
|
||||
|| TREE_CODE (decl) == FUNCTION_DECL);
|
||||
gcc_assert (TREE_CODE (decl) == VAR_DECL
|
||||
|| TREE_CODE (decl) == FUNCTION_DECL);
|
||||
|
||||
if (TARGET_NOP_FUN_DLLIMPORT && TREE_CODE (decl) == FUNCTION_DECL)
|
||||
return false;
|
||||
if (TARGET_NOP_FUN_DLLIMPORT && TREE_CODE (decl) == FUNCTION_DECL)
|
||||
return false;
|
||||
|
||||
/* We ignore the dllimport attribute for inline member functions.
|
||||
This differs from MSVC behavior which treats it like GNUC
|
||||
'extern inline' extension. Also ignore for template
|
||||
instantiations with linkonce semantics and artificial methods. */
|
||||
if (TREE_CODE (decl) == FUNCTION_DECL
|
||||
&& (DECL_DECLARED_INLINE_P (decl)
|
||||
|| DECL_TEMPLATE_INSTANTIATION (decl)
|
||||
|| DECL_ARTIFICIAL (decl)))
|
||||
/* We ignore the dllimport attribute for inline member functions.
|
||||
This differs from MSVC behavior which treats it like GNUC
|
||||
'extern inline' extension. Also ignore for template
|
||||
instantiations with linkonce semantics and artificial methods. */
|
||||
if (TREE_CODE (decl) == FUNCTION_DECL
|
||||
&& (DECL_DECLARED_INLINE_P (decl)
|
||||
|| DECL_TEMPLATE_INSTANTIATION (decl)
|
||||
|| DECL_ARTIFICIAL (decl)))
|
||||
return false;
|
||||
|
||||
|
||||
/* Don't mark defined functions as dllimport. This code will only be
|
||||
reached if we see a non-inline function defined out-of-class. */
|
||||
else if (TREE_CODE (decl) == FUNCTION_DECL
|
||||
&& (DECL_INITIAL (decl)))
|
||||
return false;
|
||||
|
||||
/* Don't allow definitions of static data members in dllimport class,
|
||||
If vtable data is marked as DECL_EXTERNAL, import it; otherwise just
|
||||
ignore the class attribute. */
|
||||
else if (TREE_CODE (decl) == VAR_DECL
|
||||
&& TREE_STATIC (decl) && TREE_PUBLIC (decl)
|
||||
&& !DECL_EXTERNAL (decl))
|
||||
{
|
||||
if (!DECL_VIRTUAL_P (decl))
|
||||
error ("definition of static data member %q+D of "
|
||||
"dllimport'd class", decl);
|
||||
return false;
|
||||
}
|
||||
|
||||
/* Since we can't treat a pointer to a dllimport'd symbol as a
|
||||
constant address, we turn off the attribute on C++ virtual
|
||||
methods to allow creation of vtables using thunks. */
|
||||
else if (TREE_CODE (TREE_TYPE (decl)) == METHOD_TYPE
|
||||
&& DECL_VIRTUAL_P (decl))
|
||||
{
|
||||
/* Even though we ignore the attribute from the start, warn if we later see
|
||||
an out-of class definition, as we do for other member functions in
|
||||
tree.c:merge_dllimport_decl_attributes. If this is the key method, the
|
||||
definition may affect the import-export status of vtables, depending
|
||||
on how we handle MULTIPLE_SYMBOL_SPACES in cp/decl2.c. */
|
||||
if (DECL_INITIAL (decl))
|
||||
{
|
||||
warning (OPT_Wattributes, "%q+D redeclared without dllimport attribute: "
|
||||
"previous dllimport ignored", decl);
|
||||
#ifdef PE_DLL_DEBUG
|
||||
if (decl == CLASSTYPE_KEY_METHOD (DECL_CONTEXT (decl)))
|
||||
warning (OPT_Wattributes, "key method %q+D of dllimport'd class defined"
|
||||
decl);
|
||||
#endif
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/* Don't mark defined functions as dllimport. This code will only be
|
||||
reached if we see a non-inline function defined out-of-class. */
|
||||
else if (TREE_CODE (decl) == FUNCTION_DECL
|
||||
&& (DECL_INITIAL (decl)))
|
||||
return false;
|
||||
|
||||
/* Don't allow definitions of static data members in dllimport class,
|
||||
If vtable data is marked as DECL_EXTERNAL, import it; otherwise just
|
||||
ignore the class attribute. */
|
||||
else if (TREE_CODE (decl) == VAR_DECL
|
||||
&& TREE_STATIC (decl) && TREE_PUBLIC (decl)
|
||||
&& !DECL_EXTERNAL (decl))
|
||||
{
|
||||
if (!DECL_VIRTUAL_P (decl))
|
||||
error ("definition of static data member %q+D of "
|
||||
"dllimport'd class", decl);
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
@ -143,7 +120,7 @@ i386_pe_adjust_class_at_definition (tree t)
|
||||
definition. We recheck the class members at RTL generation to
|
||||
emit warnings if this has happened. Definition of static data member
|
||||
of dllimport'd class always causes an error (as per MS compiler).
|
||||
*/
|
||||
*/
|
||||
|
||||
/* Check static VAR_DECL's. */
|
||||
for (member = TYPE_FIELDS (t); member; member = TREE_CHAIN (member))
|
||||
|
||||
@ -1,3 +1,10 @@
|
||||
2007-04-04 Danny Smith <dannysmith.users.sourceforge.net>
|
||||
|
||||
* class.c (check_for_override): Don't remove dllmport attribute
|
||||
of virtual methods.
|
||||
|
||||
|
||||
|
||||
2007-04-03 Jakub Jelinek <jakub@redhat.com>
|
||||
|
||||
PR c++/30847
|
||||
|
||||
@ -2343,16 +2343,6 @@ check_for_override (tree decl, tree ctype)
|
||||
if (!DECL_VINDEX (decl))
|
||||
DECL_VINDEX (decl) = error_mark_node;
|
||||
IDENTIFIER_VIRTUAL_P (DECL_NAME (decl)) = 1;
|
||||
if (DECL_DLLIMPORT_P (decl))
|
||||
{
|
||||
/* When we handled the dllimport attribute we may not have known
|
||||
that this function is virtual We can't use dllimport
|
||||
semantics for a virtual method because we need to initialize
|
||||
the vtable entry with a constant address. */
|
||||
DECL_DLLIMPORT_P (decl) = 0;
|
||||
DECL_ATTRIBUTES (decl)
|
||||
= remove_attribute ("dllimport", DECL_ATTRIBUTES (decl));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -1,3 +1,7 @@
|
||||
2007-04-04 Danny Smith <dannysmith.users.sourceforge.net>
|
||||
|
||||
* g++.dg/ext/dllimport12.C: Update comments.
|
||||
|
||||
2007-04-03 Eric Christopher <echristo@apple.com>
|
||||
|
||||
* g++.dg/tree-ssa/pr29902.C: Require ilp32.
|
||||
|
||||
@ -1,8 +1,9 @@
|
||||
// PR target/27650
|
||||
// Don't use dllimport semantics on virtual methods
|
||||
// Don't use dllimport semantics on virtual methods when initializing
|
||||
// vtables
|
||||
// { dg-do compile { target i?86-*-cygwin* i?86-*-mingw*} }
|
||||
|
||||
// Don't import explicitly virtual method.
|
||||
// Use import lib thunk for vtable entry of explicitly virtual method,
|
||||
struct base
|
||||
{
|
||||
virtual void key_method();
|
||||
@ -12,7 +13,7 @@ struct base
|
||||
void base::key_method() {}
|
||||
|
||||
|
||||
// Nor an implicitly virtual method.
|
||||
// Likewise for an implicitly virtual method.
|
||||
struct derived : public base
|
||||
{
|
||||
void key_method();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user