add support for go closure support on mips

src/mips/ffi.c

@@ -581,14 +581,15 @@ ffi_status ffi_prep_cif_machdep(ffi_cif *cif)
 /* Low level routine for calling O32 functions */
 extern int ffi_call_O32(void (*)(char *, extended_cif *, int, int), 
 			extended_cif *, unsigned, 
-			unsigned, unsigned *, void (*)(void));
+			unsigned, unsigned *, void (*)(void), void *closure);
 
 /* Low level routine for calling N32 functions */
 extern int ffi_call_N32(void (*)(char *, extended_cif *, int, int), 
 			extended_cif *, unsigned, 
-			unsigned, void *, void (*)(void));
+			unsigned, void *, void (*)(void), void *closure);
 
-void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
+void ffi_call_int(ffi_cif *cif, void (*fn)(void), void *rvalue, 
+	      void **avalue, void *closure)
 {
   extended_cif ecif;
 
@@ -610,7 +611,7 @@ void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
     case FFI_O32:
     case FFI_O32_SOFT_FLOAT:
       ffi_call_O32(ffi_prep_args, &ecif, cif->bytes, 
-		   cif->flags, ecif.rvalue, fn);
+		   cif->flags, ecif.rvalue, fn, closure);
       break;
 #endif
 
@@ -642,7 +643,7 @@ void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
 #endif
 	  }
         ffi_call_N32(ffi_prep_args, &ecif, cif->bytes,
-                     cif->flags, rvalue_copy, fn);
+                     cif->flags, rvalue_copy, fn, closure);
         if (copy_rvalue)
           memcpy(ecif.rvalue, rvalue_copy + copy_offset, cif->rtype->size);
       }
@@ -655,6 +656,20 @@ void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
     }
 }
 
+void
+ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
+{
+  ffi_call_int (cif, fn, rvalue, avalue, NULL);
+}
+
+void
+ffi_call_go (ffi_cif *cif, void (*fn)(void), void *rvalue,
+	     void **avalue, void *closure)
+{
+  ffi_call_int (cif, fn, rvalue, avalue, closure);
+}
+
+
 #if FFI_CLOSURES
 #if defined(FFI_MIPS_O32)
 extern void ffi_closure_O32(void);
@@ -762,17 +777,17 @@ ffi_prep_closure_loc (ffi_closure *closure,
  * Based on the similar routine for sparc.
  */
 int
-ffi_closure_mips_inner_O32 (ffi_closure *closure,
+ffi_closure_mips_inner_O32 (ffi_cif *cif,
+                            void (*fun)(ffi_cif*, void*, void**, void*),
+			    void *user_data;
 			    void *rvalue, ffi_arg *ar,
 			    double *fpr)
 {
-  ffi_cif *cif;
   void **avaluep;
   ffi_arg *avalue;
   ffi_type **arg_types;
   int i, avn, argn, seen_int;
 
-  cif = closure->cif;
   avalue = alloca (cif->nargs * sizeof (ffi_arg));
   avaluep = alloca (cif->nargs * sizeof (ffi_arg));
 
@@ -840,7 +855,7 @@ ffi_closure_mips_inner_O32 (ffi_closure *closure,
     }
 
   /* Invoke the closure. */
-  (closure->fun) (cif, rvalue, avaluep, closure->user_data);
+  fun(cif, rvalue, avaluep, user_data);
 
   if (cif->abi == FFI_O32_SOFT_FLOAT)
     {
@@ -916,11 +931,12 @@ copy_struct_N32(char *target, unsigned offset, ffi_abi abi, ffi_type *type,
  *
  */
 int
-ffi_closure_mips_inner_N32 (ffi_closure *closure,
+ffi_closure_mips_inner_N32 (ffi_cif *cif, 
+			    void (*fun)(ffi_cif*, void*, void**, void*),
+                            void *user_data,
 			    void *rvalue, ffi_arg *ar,
 			    ffi_arg *fpr)
 {
-  ffi_cif *cif;
   void **avaluep;
   ffi_arg *avalue;
   ffi_type **arg_types;
@@ -928,7 +944,6 @@ ffi_closure_mips_inner_N32 (ffi_closure *closure,
   int soft_float;
   ffi_arg *argp;
 
-  cif = closure->cif;
   soft_float = cif->abi == FFI_N64_SOFT_FLOAT
     || cif->abi == FFI_N32_SOFT_FLOAT;
   avalue = alloca (cif->nargs * sizeof (ffi_arg));
@@ -1040,11 +1055,48 @@ ffi_closure_mips_inner_N32 (ffi_closure *closure,
     }
 
   /* Invoke the closure. */
-  (closure->fun) (cif, rvalue, avaluep, closure->user_data);
+  fun (cif, rvalue, avaluep, user_data);
 
   return cif->flags >> (FFI_FLAG_BITS * 8);
 }
 
 #endif /* FFI_MIPS_N32 */
 
+#if defined(FFI_MIPS_O32)
+extern void ffi_closure_O32(void);
+#else
+extern void ffi_closure_N32(void);
+#endif /* FFI_MIPS_O32 */
+
+void
+ffi_status
+ffi_prep_go_closure (ffi_go_closure* closure, ffi_cif* cif,
+		     void (*fun)(ffi_cif*,void*,void**,void*))
+{
+  void * fn;
+
+#if defined(FFI_MIPS_O32)
+  if (cif->abi != FFI_O32 && cif->abi != FFI_O32_SOFT_FLOAT)
+    return FFI_BAD_ABI;
+  fn = ffi_go_closure_O32;
+#else
+#if _MIPS_SIM ==_ABIN32
+  if (cif->abi != FFI_N32
+      && cif->abi != FFI_N32_SOFT_FLOAT)
+    return FFI_BAD_ABI;
+#else
+  if (cif->abi != FFI_N64
+      && cif->abi != FFI_N64_SOFT_FLOAT)
+    return FFI_BAD_ABI;
+#endif
+  fn = ffi_go_closure_N32;
+#endif /* FFI_MIPS_O32 */
+
+  closure->tramp = (void *)fn;
+  closure->cif = cif;
+  closure->fun = fun;
+
+  return FFI_OK;
+}
+
 #endif /* FFI_CLOSURES */