diff options
Diffstat (limited to 'libjava/include/execution.h')
-rw-r--r-- | libjava/include/execution.h | 110 |
1 files changed, 91 insertions, 19 deletions
diff --git a/libjava/include/execution.h b/libjava/include/execution.h index f0c309c..279e9c1 100644 --- a/libjava/include/execution.h +++ b/libjava/include/execution.h @@ -24,13 +24,15 @@ struct _Jv_ExecutionEngine bool (*need_resolve_string_fields) (); void (*verify) (jclass); void (*allocate_static_fields) (jclass, int, int); + void (*allocate_field_initializers) (jclass); void (*create_ncode) (jclass); _Jv_ResolvedMethod *(*resolve_method) (_Jv_Method *, jclass, jboolean); void (*post_miranda_hook) (jclass); }; -// This handles all gcj-compiled code, including BC ABI. +// This handles gcj-compiled code except that compiled with +// -findirect-classes. struct _Jv_CompiledEngine : public _Jv_ExecutionEngine { public: @@ -55,25 +57,14 @@ struct _Jv_CompiledEngine : public _Jv_ExecutionEngine return NULL; } - static void do_allocate_static_fields (jclass klass, - int pointer_size, - int other_size) + static void do_allocate_static_fields (jclass, + int, + int) { - // Splitting the allocations here lets us scan reference fields - // and avoid scanning non-reference fields. - char *reference_fields = (char *) _Jv_AllocRawObj (pointer_size); - char *non_reference_fields = (char *) _Jv_AllocBytes (other_size); - - for (int i = 0; i < klass->field_count; i++) - { - _Jv_Field *field = &klass->fields[i]; - - if ((field->flags & java::lang::reflect::Modifier::STATIC) == 0) - continue; + } - char *base = field->isRef() ? reference_fields : non_reference_fields; - field->u.addr = base + field->u.boffset; - } + static void do_allocate_field_initializers (jclass) + { } static void do_create_ncode (jclass) @@ -92,6 +83,7 @@ struct _Jv_CompiledEngine : public _Jv_ExecutionEngine need_resolve_string_fields = do_need_resolve_string_fields; verify = do_verify; allocate_static_fields = do_allocate_static_fields; + allocate_field_initializers = do_allocate_field_initializers; create_ncode = do_create_ncode; resolve_method = do_resolve_method; post_miranda_hook = do_post_miranda_hook; @@ -109,6 +101,81 @@ struct _Jv_CompiledEngine : public _Jv_ExecutionEngine } }; +class _Jv_IndirectCompiledClass +{ +public: + void **field_initializers; +}; + +// This handles gcj-compiled code compiled with -findirect-classes. +struct _Jv_IndirectCompiledEngine : public _Jv_CompiledEngine +{ + _Jv_IndirectCompiledEngine () : _Jv_CompiledEngine () + { + allocate_static_fields = do_allocate_static_fields; + allocate_field_initializers = do_allocate_field_initializers; + } + + static void do_allocate_field_initializers (jclass klass) + { + _Jv_IndirectCompiledClass *aux + = (_Jv_IndirectCompiledClass*) + _Jv_AllocRawObj (sizeof (_Jv_IndirectCompiledClass)); + klass->aux_info = aux; + + aux->field_initializers = (void **)_Jv_Malloc (klass->field_count + * sizeof (void*)); + + for (int i = 0; i < klass->field_count; i++) + { + _Jv_Field *field = &klass->fields[i]; + if (field->flags & java::lang::reflect::Modifier::STATIC) + { + aux->field_initializers[i] = field->u.addr; + field->u.addr = NULL; + } + } + } + + static void do_allocate_static_fields (jclass klass, + int pointer_size, + int other_size) + { + // Splitting the allocations here lets us scan reference fields + // and avoid scanning non-reference fields. + char *reference_fields = (char *) _Jv_AllocRawObj (pointer_size); + char *non_reference_fields = (char *) _Jv_AllocBytes (other_size); + + _Jv_IndirectCompiledClass *aux + = (_Jv_IndirectCompiledClass*)klass->aux_info; + + for (int i = 0; i < klass->field_count; i++) + { + _Jv_Field *field = &klass->fields[i]; + + if ((field->flags & java::lang::reflect::Modifier::STATIC) == 0) + continue; + + char *base = field->isRef() ? reference_fields : non_reference_fields; + field->u.addr = base + field->u.boffset; + + if (aux->field_initializers[i]) + { + int field_size; + if (! field->isRef ()) + field_size = field->type->size (); + else + field_size = sizeof (jobject); + + memcpy (field->u.addr, aux->field_initializers[i], field_size); + } + } + _Jv_Free (aux->field_initializers); + } +}; + + + // This handles interpreted code. class _Jv_InterpreterEngine : public _Jv_ExecutionEngine { @@ -130,6 +197,10 @@ class _Jv_InterpreterEngine : public _Jv_ExecutionEngine _Jv_UnregisterClass(klass); } + static void do_allocate_field_initializers (jclass) + { + } + static void do_post_miranda_hook (jclass); _Jv_InterpreterEngine () @@ -138,6 +209,7 @@ class _Jv_InterpreterEngine : public _Jv_ExecutionEngine need_resolve_string_fields = do_need_resolve_string_fields; verify = do_verify; allocate_static_fields = do_allocate_static_fields; + allocate_field_initializers = do_allocate_field_initializers; create_ncode = do_create_ncode; resolve_method = do_resolve_method; post_miranda_hook = do_post_miranda_hook; @@ -158,5 +230,5 @@ class _Jv_InterpreterEngine : public _Jv_ExecutionEngine extern _Jv_InterpreterEngine _Jv_soleInterpreterEngine; extern _Jv_CompiledEngine _Jv_soleCompiledEngine; - +extern _Jv_IndirectCompiledEngine _Jv_soleIndirectCompiledEngine; #endif // __JAVA_EXECUTION_H__ |