// prims.cc - Code for core of runtime environment.
-/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
+/* Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation
This file is part of libgcj.
details. */
#include <config.h>
-
-#ifdef USE_WIN32_SIGNALLING
-#include <windows.h>
-#endif /* USE_WIN32_SIGNALLING */
-
-#ifdef USE_WINSOCK
-#undef __INSIDE_CYGWIN__
-#include <winsock.h>
-#endif /* USE_WINSOCK */
+#include <platform.h>
#include <stdlib.h>
#include <stdarg.h>
#include <java/lang/ArrayIndexOutOfBoundsException.h>
#include <java/lang/ArithmeticException.h>
#include <java/lang/ClassFormatError.h>
+#include <java/lang/InternalError.h>
#include <java/lang/NegativeArraySizeException.h>
#include <java/lang/NullPointerException.h>
#include <java/lang/OutOfMemoryError.h>
if (len < 0)
len = strlen (s);
Utf8Const* m = (Utf8Const*) _Jv_AllocBytes (sizeof(Utf8Const) + len + 1);
- if (! m)
- throw no_memory;
memcpy (m->data, s, len);
m->data[len] = 0;
m->length = len;
// The collector calls this when it encounters an out-of-memory condition.
void _Jv_ThrowNoMemory()
{
- _Jv_Throw (no_memory);
+ throw no_memory;
}
-// Allocate a new object of class KLASS. SIZE is the size of the object
-// to allocate. You might think this is redundant, but it isn't; some
-// classes, such as String, aren't of fixed size.
-jobject
-_Jv_AllocObject (jclass klass, jint size)
-{
- _Jv_InitClass (klass);
-
- jobject obj = (jobject) _Jv_AllocObj (size, klass);
-
- // If this class has inherited finalize from Object, then don't
- // bother registering a finalizer. We know that finalize() is the
- // very first method after the dummy entry. If this turns out to be
- // unreliable, a more robust implementation can be written. Such an
- // implementation would look for Object.finalize in Object's method
- // table at startup, and then use that information to find the
- // appropriate index in the method vector.
- if (klass->vtable->get_finalizer()
- != java::lang::Object::class$.vtable->get_finalizer())
- _Jv_RegisterFinalizer (obj, _Jv_FinalizeObject);
-
#ifdef ENABLE_JVMPI
- // Service JVMPI request.
-
+static void
+jvmpi_notify_alloc(jclass klass, jint size, jobject obj)
+{
+ // Service JVMPI allocation request.
if (__builtin_expect (_Jv_JVMPI_Notify_OBJECT_ALLOC != 0, false))
{
JVMPI_Event event;
(*_Jv_JVMPI_Notify_OBJECT_ALLOC) (&event);
_Jv_EnableGC ();
}
+}
+#else /* !ENABLE_JVMPI */
+# define jvmpi_notify_alloc(klass,size,obj) /* do nothing */
#endif
+// Allocate a new object of class KLASS. SIZE is the size of the object
+// to allocate. You might think this is redundant, but it isn't; some
+// classes, such as String, aren't of fixed size.
+// First a version that assumes that we have no finalizer, and that
+// the class is already initialized.
+// If we know that JVMPI is disabled, this can be replaced by a direct call
+// to the allocator for the appropriate GC.
+jobject
+_Jv_AllocObjectNoInitNoFinalizer (jclass klass, jint size)
+{
+ jobject obj = (jobject) _Jv_AllocObj (size, klass);
+ jvmpi_notify_alloc (klass, size, obj);
+ return obj;
+}
+
+// And now a version that initializes if necessary.
+jobject
+_Jv_AllocObjectNoFinalizer (jclass klass, jint size)
+{
+ _Jv_InitClass (klass);
+ jobject obj = (jobject) _Jv_AllocObj (size, klass);
+ jvmpi_notify_alloc (klass, size, obj);
+ return obj;
+}
+
+// And now the general version that registers a finalizer if necessary.
+jobject
+_Jv_AllocObject (jclass klass, jint size)
+{
+ jobject obj = _Jv_AllocObjectNoFinalizer (klass, size);
+
+ // We assume that the compiler only generates calls to this routine
+ // if there really is an interesting finalizer.
+ // Unfortunately, we still have to the dynamic test, since there may
+ // be cni calls to this routine.
+ // Nore that on IA64 get_finalizer() returns the starting address of the
+ // function, not a function pointer. Thus this still works.
+ if (klass->vtable->get_finalizer ()
+ != java::lang::Object::class$.vtable->get_finalizer ())
+ _Jv_RegisterFinalizer (obj, _Jv_FinalizeObject);
return obj;
}
case 10: return JvNewIntArray (size);
case 11: return JvNewLongArray (size);
}
- JvFail ("newarray - bad type code");
- return NULL; // Placate compiler.
+ throw new java::lang::InternalError
+ (JvNewStringLatin1 ("invalid type code in _Jv_NewArray"));
}
// Allocate a possibly multi-dimensional array but don't check that
\f
+// Ensure 8-byte alignment, for hash synchronization.
#define DECLARE_PRIM_TYPE(NAME) \
_Jv_ArrayVTable _Jv_##NAME##VTable; \
- java::lang::Class _Jv_##NAME##Class;
+ java::lang::Class _Jv_##NAME##Class __attribute__ ((aligned (8)));
DECLARE_PRIM_TYPE(byte);
DECLARE_PRIM_TYPE(short);
{
using namespace java::lang::reflect;
- // We must initialize every field of the class. We do this in the
- // same order they are declared in Class.h, except for fields that
- // are initialized to NULL.
+ _Jv_InitNewClassFields (cl);
+
+ // We must set the vtable for the class; the Java constructor
+ // doesn't do this.
+ (*(_Jv_VTable **) cl) = java::lang::Class::class$.vtable;
+
+ // Initialize the fields we care about. We do this in the same
+ // order they are declared in Class.h.
cl->name = _Jv_makeUtf8Const ((char *) cname, -1);
cl->accflags = Modifier::PUBLIC | Modifier::FINAL | Modifier::ABSTRACT;
cl->method_count = sig;
if (argc < 0)
argc = 0;
jobjectArray ar = JvNewObjectArray(argc, &StringClass, NULL);
- jobject* ptr = elements(ar);
+ jobject *ptr = elements(ar);
+ jbyteArray bytes = NULL;
for (int i = 0; i < argc; i++)
{
const char *arg = argv[i];
- // FIXME - should probably use JvNewStringUTF.
- *ptr++ = JvNewStringLatin1(arg, strlen(arg));
+ int len = strlen (arg);
+ if (bytes == NULL || bytes->length < len)
+ bytes = JvNewByteArray (len);
+ jbyte *bytePtr = elements (bytes);
+ // We assume jbyte == char.
+ memcpy (bytePtr, arg, len);
+
+ // Now convert using the default encoding.
+ *ptr++ = new java::lang::String (bytes, 0, len);
}
return (JArray<jstring>*) ar;
}
}
}
-#ifdef USE_WIN32_SIGNALLING
-
-extern "C" int* win32_get_restart_frame (void *);
-
-LONG CALLBACK
-win32_exception_handler (LPEXCEPTION_POINTERS e)
-{
- int* setjmp_buf;
- if (e->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION)
- setjmp_buf = win32_get_restart_frame (nullp);
- else if (e->ExceptionRecord->ExceptionCode == EXCEPTION_INT_DIVIDE_BY_ZERO)
- setjmp_buf = win32_get_restart_frame (arithexception);
- else
- return EXCEPTION_CONTINUE_SEARCH;
-
- e->ContextRecord->Ebp = setjmp_buf[0];
- // FIXME: Why does i386-signal.h increment the PC here, do we need to do it?
- e->ContextRecord->Eip = setjmp_buf[1];
- // FIXME: Is this the stack pointer? Do we need it?
- e->ContextRecord->Esp = setjmp_buf[2];
-
- return EXCEPTION_CONTINUE_EXECUTION;
-}
-
-#endif
-
#ifndef DISABLE_GETENV_PROPERTIES
static char *
LTDL_SET_PRELOADED_SYMBOLS ();
#endif
-#ifdef USE_WINSOCK
- // Initialise winsock for networking
- WSADATA data;
- if (WSAStartup (MAKEWORD (1, 1), &data))
- MessageBox (NULL, "Error initialising winsock library.", "Error", MB_OK | MB_ICONEXCLAMATION);
-#endif /* USE_WINSOCK */
-
-#ifdef USE_WIN32_SIGNALLING
- // Install exception handler
- SetUnhandledExceptionFilter (win32_exception_handler);
-#elif defined(HAVE_SIGACTION)
- // We only want this on POSIX systems.
- struct sigaction act;
- act.sa_handler = SIG_IGN;
- sigemptyset (&act.sa_mask);
- act.sa_flags = 0;
- sigaction (SIGPIPE, &act, NULL);
-#else
- signal (SIGPIPE, SIG_IGN);
-#endif
+ _Jv_platform_initialize ();
_Jv_JNI_Init ();
java::lang::Runtime *runtime = NULL;
+
+#ifdef DISABLE_MAIN_ARGS
+ _Jv_ThisExecutable ("[Embedded App]");
+#else
#ifdef HAVE_PROC_SELF_EXE
char exec_name[20];
sprintf (exec_name, "/proc/%d/exe", getpid ());
_Jv_ThisExecutable (exec_name);
#else
_Jv_ThisExecutable (argv[0]);
-#endif
+#endif /* HAVE_PROC_SELF_EXE */
+#endif /* DISABLE_MAIN_ARGS */
try
{
+ // Set this very early so that it is seen when java.lang.System
+ // is initialized.
+ if (is_jar)
+ _Jv_Jar_Class_Path = strdup (name);
_Jv_CreateJavaVM (NULL);
// Get the Runtime here. We want to initialize it before searching
// for `main'; that way it will be set up if `main' is a JNI method.
runtime = java::lang::Runtime::getRuntime ();
+#ifdef DISABLE_MAIN_ARGS
+ arg_vec = JvConvertArgv (0, 0);
+#else
arg_vec = JvConvertArgv (argc - 1, argv + 1);
-
+#endif
+
+ using namespace gnu::gcj::runtime;
if (klass)
- main_thread = new gnu::gcj::runtime::FirstThread (klass, arg_vec);
+ main_thread = new FirstThread (klass, arg_vec);
else
- main_thread = new gnu::gcj::runtime::FirstThread
- (JvNewStringLatin1 (name), arg_vec, is_jar);
-
- if (is_jar)
- {
- // We need a new ClassLoader because the classpath must be the
- // jar file only. The easiest way to do this is to lose our
- // reference to the previous classloader.
- _Jv_Jar_Class_Path = strdup (name);
- gnu::gcj::runtime::VMClassLoader::instance = NULL;
- }
+ main_thread = new FirstThread (JvNewStringLatin1 (name),
+ arg_vec, is_jar);
}
catch (java::lang::Throwable *t)
{
OSDN Git Service
