FreeChainXenon/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

2006-02-01 Robert Schuster <robertschuster@fsfe.org>

Browse source 
* link.cc:
	(_Jv_Linker::find_field_helper): Added checks.
	(_Jv_Linker::find_field): Use exception swallowing class resolution
	and added early return.
	(_Jv_ThrowNoClassDefFoundErrorTrampoline): New function.
	(_Jv_Linker::link_symbol_table):  Use exception swallowing class
	resolution, added ffi_closure installation routine, use
	_Jv_ThrowNoClassDefFoundError for missing static method.
	(_Jv_Linker::ensure_class_linked): Added string check which does
	not trigger class resolution.
	* java/lang/natClassLoader.cc:
	(_Jv_FindClassNoException): New method.
	* java/lang/Class.h:
	(_Jv_FindClassNoException): New method declaration.
	* include/jvm.h:
	(_Jv_FindClassNoException): New method declaration.
	(_Jv_FindClassFromSignatureNoException): New method declaration.
	* prims.cc:
	(_Jv_FindClassFromSignatureNoException): New method.
        * gcj/javaprims.h:
        (_Jv_equalsUtf8Classname): New method declaration.
        (_Jv_isPrimitiveOrDerived): Dito.
        * prims.cc:
	(_Jv_equalsUtf8Classnames): New method.
        (_Jv_isPrimitiveOrDerived): New method.
        * verify.cc:
        (ref_intersection::equals): Use new classname comparison method.
        (type::compatible): Use new classname comparison method. Added
        check whether LHS' type is java.lang.Object .
        (type::resolve): Added new optional debug message and simplified
        if-expression.
        (type::to_array): Added codepath that generates an array type
        without resolving the element type.

From-SVN: r110474
This commit is contained in:
Robert Schuster 2006-02-01 13:40:05 +00:00 • committed by Robert Schuster
parent 168b93e9e3
commit c1a9321f29
9 changed files with 491 additions and 46 deletions
Download patch file Download diff file Expand all files Collapse all files

16
libjava/java/lang/Class.h
View file

@ -69,7 +69,13 @@ enum
JV_STATE_ERROR = 12,
JV_STATE_DONE = 14 // Must be last.
JV_STATE_PHANTOM = 13, // Bytecode is missing. In many cases we can
// work around that. If not, throw a
// NoClassDefFoundError.
JV_STATE_DONE = 14, // Must be last.
};
struct _Jv_Field;
@ -240,6 +246,8 @@ void _Jv_RegisterClassHookDefault (jclass klass);
void _Jv_RegisterInitiatingLoader (jclass,java::lang::ClassLoader*);
void _Jv_UnregisterInitiatingLoader (jclass,java::lang::ClassLoader*);
void _Jv_UnregisterClass (jclass);
jclass _Jv_FindClassNoException (_Jv_Utf8Const *name,
java::lang::ClassLoader *loader);
jclass _Jv_FindClass (_Jv_Utf8Const *name,
java::lang::ClassLoader *loader);
jclass _Jv_FindClassInCache (_Jv_Utf8Const *name);
@ -263,6 +271,8 @@ jclass _Jv_GetArrayClass (jclass klass, java::lang::ClassLoader *loader);
jboolean _Jv_IsInterpretedClass (jclass);
jboolean _Jv_IsBinaryCompatibilityABI (jclass);
jboolean _Jv_IsPhantomClass (jclass);
void _Jv_CopyClassesToSystemLoader (gnu::gcj::runtime::SystemClassLoader *);
#ifdef INTERPRETER
@ -469,6 +479,8 @@ private:
friend void ::_Jv_RegisterInitiatingLoader (jclass,java::lang::ClassLoader*);
friend void ::_Jv_UnregisterInitiatingLoader (jclass,java::lang::ClassLoader*);
friend void ::_Jv_UnregisterClass (jclass);
friend jclass (::_Jv_FindClassNoException) (_Jv_Utf8Const *name,
java::lang::ClassLoader *loader);
friend jclass (::_Jv_FindClass) (_Jv_Utf8Const *name,
java::lang::ClassLoader *loader);
friend jclass (::_Jv_FindClassInCache) (_Jv_Utf8Const *name);
@ -499,6 +511,8 @@ private:
friend jboolean (::_Jv_IsInterpretedClass) (jclass);
friend jboolean (::_Jv_IsBinaryCompatibilityABI) (jclass);
friend jboolean (::_Jv_IsPhantomClass) (jclass);
#ifdef INTERPRETER
friend void ::_Jv_InitField (jobject, jclass, int);

5
libjava/java/lang/natClass.cc
View file

@ -668,8 +668,9 @@ java::lang::Class::finalize (void)
void
java::lang::Class::initializeClass (void)
{
// Short-circuit to avoid needless locking.
if (state == JV_STATE_DONE)
// Short-circuit to avoid needless locking (expression includes
// JV_STATE_PHANTOM and JV_STATE_DONE).
if (state >= JV_STATE_PHANTOM)
return;
// Step 1. We introduce a new scope so we can synchronize more

24
libjava/java/lang/natClassLoader.cc
View file

@ -266,6 +266,30 @@ _Jv_CopyClassesToSystemLoader (gnu::gcj::runtime::SystemClassLoader *loader)
system_class_list = SYSTEM_LOADER_INITIALIZED;
}
// An internal variant of _Jv_FindClass which simply swallows a
// NoClassDefFoundError or a ClassNotFoundException. This gives the
// caller a chance to evaluate the situation and behave accordingly.
jclass
_Jv_FindClassNoException (_Jv_Utf8Const *name, java::lang::ClassLoader *loader)
{
jclass klass;
try
{
klass = _Jv_FindClass(name, loader);
}
catch ( java::lang::NoClassDefFoundError *ncdfe )
{
return NULL;
}
catch ( java::lang::ClassNotFoundException *cnfe )
{
return NULL;
}
return klass;
}
jclass
_Jv_FindClass (_Jv_Utf8Const *name, java::lang::ClassLoader *loader)
{