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-rw-r--r--libjava/prims.cc608
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diff --git a/libjava/prims.cc b/libjava/prims.cc
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--- a/libjava/prims.cc
+++ /dev/null
@@ -1,608 +0,0 @@
-// prims.cc - Code for core of runtime environment.
-
-/* Copyright (C) 1998, 1999 Cygnus Solutions
-
- This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
-
-#include <config.h>
-
-#include <stdlib.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <string.h>
-
-#pragma implementation "java-array.h"
-
-#include <cni.h>
-#include <jvm.h>
-#include <java-signal.h>
-
-#include <java/lang/Class.h>
-#include <java/lang/Runtime.h>
-#include <java/lang/String.h>
-#include <java/lang/Thread.h>
-#include <java/lang/ThreadGroup.h>
-#include <java/lang/FirstThread.h>
-#include <java/lang/ArrayIndexOutOfBoundsException.h>
-#include <java/lang/ArithmeticException.h>
-#include <java/lang/ClassFormatError.h>
-#include <java/lang/ClassCastException.h>
-#include <java/lang/NegativeArraySizeException.h>
-#include <java/lang/NullPointerException.h>
-#include <java/lang/OutOfMemoryError.h>
-#include <java/lang/ArrayStoreException.h>
-#include <java/lang/System.h>
-#include <java/lang/reflect/Modifier.h>
-#include <java/io/PrintStream.h>
-
-#ifdef USE_LTDL
-#include <ltdl.h>
-#endif
-
-#define ObjectClass _CL_Q34java4lang6Object
-extern java::lang::Class ObjectClass;
-
-// We allocate a single OutOfMemoryError exception which we keep
-// around for use if we run out of memory.
-static java::lang::OutOfMemoryError *no_memory;
-
-// Largest representable size_t.
-#define SIZE_T_MAX ((size_t) (~ (size_t) 0))
-
-
-
-#ifdef HANDLE_SEGV
-static java::lang::NullPointerException *nullp;
-SIGNAL_HANDLER (catch_segv)
-{
- MAKE_THROW_FRAME;
- _Jv_Throw (nullp);
-}
-#endif
-
-#ifdef HANDLE_FPE
-static java::lang::ArithmeticException *arithexception;
-SIGNAL_HANDLER (catch_fpe)
-{
- MAKE_THROW_FRAME;
- _Jv_Throw (arithexception);
-}
-#endif
-
-
-
-jboolean
-_Jv_equalUtf8Consts (Utf8Const* a, Utf8Const *b)
-{
- register int len;
- register _Jv_ushort *aptr, *bptr;
- if (a == b)
- return true;
- if (a->hash != b->hash)
- return false;
- len = a->length;
- if (b->length != len)
- return false;
- aptr = (_Jv_ushort *)a->data;
- bptr = (_Jv_ushort *)b->data;
- len = (len + 1) >> 1;
- while (--len >= 0)
- if (*aptr++ != *bptr++)
- return false;
- return true;
-}
-
-/* True iff A is equal to STR.
- HASH is STR->hashCode().
-*/
-
-jboolean
-_Jv_equal (Utf8Const* a, jstring str, jint hash)
-{
- if (a->hash != (_Jv_ushort) hash)
- return false;
- jint len = str->length();
- jint i = 0;
- jchar *sptr = _Jv_GetStringChars (str);
- register unsigned char* ptr = (unsigned char*) a->data;
- register unsigned char* limit = ptr + a->length;
- for (;; i++, sptr++)
- {
- int ch = UTF8_GET (ptr, limit);
- if (i == len)
- return ch < 0;
- if (ch != *sptr)
- return false;
- }
- return true;
-}
-
-/* Count the number of Unicode chars encoded in a given Ut8 string. */
-int
-_Jv_strLengthUtf8(char* str, int len)
-{
- register unsigned char* ptr;
- register unsigned char* limit;
- int str_length;
-
- ptr = (unsigned char*) str;
- limit = ptr + len;
- str_length = 0;
- for (; ptr < limit; str_length++) {
- if (UTF8_GET (ptr, limit) < 0) {
- return (-1);
- }
- }
- return (str_length);
-}
-
-/* Calculate a hash value for a string encoded in Utf8 format.
- * This returns the same hash value as specified or java.lang.String.hashCode.
- */
-static jint
-hashUtf8String (char* str, int len)
-{
- register unsigned char* ptr = (unsigned char*) str;
- register unsigned char* limit = ptr + len;
- jint hash = 0;
-
- for (; ptr < limit;)
- {
- int ch = UTF8_GET (ptr, limit);
- /* Updated specification from
- http://www.javasoft.com/docs/books/jls/clarify.html. */
- hash = (31 * hash) + ch;
- }
- return hash;
-}
-
-_Jv_Utf8Const *
-_Jv_makeUtf8Const (char* s, int len)
-{
- if (len < 0)
- len = strlen (s);
- Utf8Const* m = (Utf8Const*) _Jv_AllocBytes (sizeof(Utf8Const) + len + 1);
- if (! m)
- JvThrow (no_memory);
- memcpy (m->data, s, len);
- m->data[len] = 0;
- m->length = len;
- m->hash = hashUtf8String (s, len) & 0xFFFF;
- return (m);
-}
-
-
-
-#ifdef DEBUG
-void
-_Jv_Abort (const char *function, const char *file, int line,
- const char *message)
-#else
-void
-_Jv_Abort (const char *, const char *, int, const char *message)
-#endif
-{
-#ifdef DEBUG
- fprintf (stderr,
- "libgcj failure: %s\n in function %s, file %s, line %d\n",
- message, function, file, line);
-#else
- java::io::PrintStream *err = java::lang::System::err;
- err->print(JvNewStringLatin1 ("libgcj failure: "));
- err->println(JvNewStringLatin1 (message));
- err->flush();
-#endif
- abort ();
-}
-
-static void
-fail_on_finalization (jobject)
-{
- JvFail ("object was finalized");
-}
-
-void
-_Jv_GCWatch (jobject obj)
-{
- _Jv_RegisterFinalizer (obj, fail_on_finalization);
-}
-
-void
-_Jv_ThrowBadArrayIndex(jint bad_index)
-{
- JvThrow (new java::lang::ArrayIndexOutOfBoundsException
- (java::lang::String::valueOf(bad_index)));
-}
-
-void*
-_Jv_CheckCast (jclass c, jobject obj)
-{
- if (obj != NULL && ! c->isAssignableFrom(obj->getClass()))
- JvThrow (new java::lang::ClassCastException);
- return obj;
-}
-
-void
-_Jv_CheckArrayStore (jobject arr, jobject obj)
-{
- if (obj)
- {
- JvAssert (arr != NULL);
- jclass arr_class = arr->getClass();
- JvAssert (arr_class->isArray());
- jclass elt_class = arr_class->getComponentType();
- jclass obj_class = obj->getClass();
- if (! elt_class->isAssignableFrom(obj_class))
- JvThrow (new java::lang::ArrayStoreException);
- }
-}
-
-
-
-// Allocate some unscanned memory and throw an exception if no memory.
-void *
-_Jv_AllocBytesChecked (jsize size)
-{
- void *r = _Jv_AllocBytes (size);
- if (! r)
- _Jv_Throw (no_memory);
- return r;
-}
-
-// Allocate a new object of class C. 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 c, jint size)
-{
- _Jv_InitClass (c);
-
- jobject obj = (jobject) _Jv_AllocObj (size);
- if (! obj)
- JvThrow (no_memory);
- *((_Jv_VTable **) obj) = c->vtable;
-
- // 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 (c->vtable->method[1] != ObjectClass.vtable->method[1])
- _Jv_RegisterFinalizer (obj, _Jv_FinalizeObject);
-
- return obj;
-}
-
-// Allocate a new array of Java objects. Each object is of type
-// `elementClass'. `init' is used to initialize each slot in the
-// array.
-jobjectArray
-_Jv_NewObjectArray (jsize count, jclass elementClass, jobject init)
-{
- if (count < 0)
- JvThrow (new java::lang::NegativeArraySizeException);
-
- // Check for overflow.
- if ((size_t) count > (SIZE_T_MAX - sizeof (__JArray)) / sizeof (jobject))
- JvThrow (no_memory);
-
- size_t size = count * sizeof (jobject) + sizeof (__JArray);
- jclass clas = _Jv_FindArrayClass (elementClass);
- jobjectArray obj = (jobjectArray) _Jv_AllocArray (size);
- if (! obj)
- JvThrow (no_memory);
- obj->length = count;
- jobject* ptr = elements(obj);
- // We know the allocator returns zeroed memory. So don't bother
- // zeroing it again.
- if (init)
- {
- while (--count >= 0)
- *ptr++ = init;
- }
- // Set the vtbl last to avoid problems if the GC happens during the
- // window in this function between the allocation and this
- // assignment.
- *((_Jv_VTable **) obj) = clas->vtable;
- return obj;
-}
-
-// Allocate a new array of primitives. ELTYPE is the type of the
-// element, COUNT is the size of the array.
-jobject
-_Jv_NewPrimArray (jclass eltype, jint count)
-{
- int elsize = eltype->size();
- if (count < 0)
- JvThrow (new java::lang::NegativeArraySizeException ());
-
- // Check for overflow.
- if ((size_t) count > (SIZE_T_MAX - sizeof (__JArray)) / elsize)
- JvThrow (no_memory);
-
- __JArray *arr = (__JArray*) _Jv_AllocObj (sizeof (__JArray)
- + elsize * count);
- if (! arr)
- JvThrow (no_memory);
- arr->length = count;
- // Note that we assume we are given zeroed memory by the allocator.
-
- jclass klass = _Jv_FindArrayClass (eltype);
- // Set the vtbl last to avoid problems if the GC happens during the
- // window in this function between the allocation and this
- // assignment.
- *((_Jv_VTable **) arr) = klass->vtable;
- return arr;
-}
-
-jcharArray
-JvNewCharArray (jint length)
-{
- return (jcharArray) _Jv_NewPrimArray (JvPrimClass (char), length);
-}
-
-jbooleanArray
-JvNewBooleanArray (jint length)
-{
- return (jbooleanArray) _Jv_NewPrimArray (JvPrimClass (boolean), length);
-}
-
-jbyteArray
-JvNewByteArray (jint length)
-{
- return (jbyteArray) _Jv_NewPrimArray (JvPrimClass (byte), length);
-}
-
-jshortArray
-JvNewShortArray (jint length)
-{
- return (jshortArray) _Jv_NewPrimArray (JvPrimClass (short), length);
-}
-
-jintArray
-JvNewIntArray (jint length)
-{
- return (jintArray) _Jv_NewPrimArray (JvPrimClass (int), length);
-}
-
-jlongArray
-JvNewLongArray (jint length)
-{
- return (jlongArray) _Jv_NewPrimArray (JvPrimClass (long), length);
-}
-
-jfloatArray
-JvNewFloatArray (jint length)
-{
- return (jfloatArray) _Jv_NewPrimArray (JvPrimClass (float), length);
-}
-
-jdoubleArray
-JvNewDoubleArray (jint length)
-{
- return (jdoubleArray) _Jv_NewPrimArray (JvPrimClass (double), length);
-}
-
-jobject
-_Jv_NewArray (jint type, jint size)
-{
- switch (type)
- {
- case 4: return JvNewBooleanArray (size);
- case 5: return JvNewCharArray (size);
- case 6: return JvNewFloatArray (size);
- case 7: return JvNewDoubleArray (size);
- case 8: return JvNewByteArray (size);
- case 9: return JvNewShortArray (size);
- case 10: return JvNewIntArray (size);
- case 11: return JvNewLongArray (size);
- }
- JvFail ("newarray - bad type code");
- return NULL; // Placate compiler.
-}
-
-jobject
-_Jv_NewMultiArray (jclass type, jint dimensions, jint *sizes)
-{
- JvAssert (type->isArray());
- jclass element_type = type->getComponentType();
- jobject result;
- if (element_type->isPrimitive())
- result = _Jv_NewPrimArray (element_type, sizes[0]);
- else
- result = _Jv_NewObjectArray (sizes[0], element_type, NULL);
-
- if (dimensions > 1)
- {
- JvAssert (! element_type->isPrimitive());
- JvAssert (element_type->isArray());
- jobject *contents = elements ((jobjectArray) result);
- for (int i = 0; i < sizes[0]; ++i)
- contents[i] = _Jv_NewMultiArray (element_type, dimensions - 1,
- sizes + 1);
- }
-
- return result;
-}
-
-jobject
-_Jv_NewMultiArray (jclass array_type, jint dimensions, ...)
-{
- va_list args;
- jint sizes[dimensions];
- va_start (args, dimensions);
- for (int i = 0; i < dimensions; ++i)
- {
- jint size = va_arg (args, jint);
- sizes[i] = size;
- }
- va_end (args);
-
- return _Jv_NewMultiArray (array_type, dimensions, sizes);
-}
-
-
-
-class _Jv_PrimClass : public java::lang::Class
-{
-public:
- // FIXME: calling convention is weird. If we use the natural types
- // then the compiler will complain because they aren't Java types.
- _Jv_PrimClass (jobject cname, jbyte sig, jint len)
- {
- 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.
- next = NULL;
- name = _Jv_makeUtf8Const ((char *) cname, -1);
- accflags = Modifier::PUBLIC | Modifier::FINAL;
- superclass = NULL;
- constants.size = 0;
- constants.tags = NULL;
- constants.data = NULL;
- methods = NULL;
- method_count = sig;
- vtable_method_count = 0;
- fields = NULL;
- size_in_bytes = len;
- field_count = 0;
- static_field_count = 0;
- vtable = JV_PRIMITIVE_VTABLE;
- interfaces = NULL;
- loader = NULL;
- interface_count = 0;
- state = 0; // FIXME.
- thread = NULL;
- }
-};
-
-#define DECLARE_PRIM_TYPE(NAME, SIG, LEN) \
- _Jv_PrimClass _Jv_##NAME##Class((jobject) #NAME, (jbyte) SIG, (jint) LEN)
-
-DECLARE_PRIM_TYPE(byte, 'B', 1);
-DECLARE_PRIM_TYPE(short, 'S', 2);
-DECLARE_PRIM_TYPE(int, 'I', 4);
-DECLARE_PRIM_TYPE(long, 'J', 8);
-DECLARE_PRIM_TYPE(boolean, 'Z', 1);
-DECLARE_PRIM_TYPE(char, 'C', 2);
-DECLARE_PRIM_TYPE(float, 'F', 4);
-DECLARE_PRIM_TYPE(double, 'D', 8);
-DECLARE_PRIM_TYPE(void, 'V', 0);
-
-jclass
-_Jv_FindClassFromSignature (char *sig, java::lang::ClassLoader *loader)
-{
- switch (*sig)
- {
- case 'B':
- return JvPrimClass (byte);
- case 'S':
- return JvPrimClass (short);
- case 'I':
- return JvPrimClass (int);
- case 'J':
- return JvPrimClass (long);
- case 'Z':
- return JvPrimClass (boolean);
- case 'C':
- return JvPrimClass (char);
- case 'F':
- return JvPrimClass (float);
- case 'D':
- return JvPrimClass (double);
- case 'V':
- return JvPrimClass (void);
- case 'L':
- {
- int i;
- for (i = 1; sig[i] && sig[i] != ';'; ++i)
- ;
- _Jv_Utf8Const *name = _Jv_makeUtf8Const (&sig[1], i - 1);
- return _Jv_FindClass (name, loader);
- }
- case '[':
- return _Jv_FindArrayClass (_Jv_FindClassFromSignature (&sig[1], loader));
- }
- JvFail ("couldn't understand class signature");
- return NULL; // Placate compiler.
-}
-
-
-
-JArray<jstring> *
-JvConvertArgv (int argc, const char **argv)
-{
- if (argc < 0)
- argc = 0;
- jobjectArray ar = JvNewObjectArray(argc, &StringClass, NULL);
- jobject* ptr = elements(ar);
- for (int i = 0; i < argc; i++)
- {
- const char *arg = argv[i];
- // FIXME - should probably use JvNewStringUTF.
- *ptr++ = JvNewStringLatin1(arg, strlen(arg));
- }
- return (JArray<jstring>*) ar;
-}
-
-// FIXME: These variables are static so that they will be
-// automatically scanned by the Boehm collector. This is needed
-// because with qthreads the collector won't scan the initial stack --
-// it will only scan the qthreads stacks.
-
-// Command line arguments.
-static jobject arg_vec;
-
-// The primary threadgroup.
-static java::lang::ThreadGroup *main_group;
-
-// The primary thread.
-static java::lang::Thread *main_thread;
-
-void
-JvRunMain (jclass klass, int argc, const char **argv)
-{
- INIT_SEGV;
- INIT_FPE;
-
- no_memory = new java::lang::OutOfMemoryError;
-
-#ifdef USE_LTDL
- LTDL_SET_PRELOADED_SYMBOLS ();
-#endif
-
- arg_vec = JvConvertArgv (argc - 1, argv + 1);
- main_group = new java::lang::ThreadGroup (23);
- main_thread = new java::lang::FirstThread (main_group, klass, arg_vec);
-
- main_thread->start();
- _Jv_ThreadWait ();
-
- java::lang::Runtime::getRuntime ()->exit (0);
-}
-
-
-
-void *
-_Jv_Malloc (jsize size)
-{
- if (size == 0)
- size = 1;
- void *ptr = malloc ((size_t) size);
- if (ptr == NULL)
- JvThrow (no_memory);
- return ptr;
-}
-
-void
-_Jv_Free (void* ptr)
-{
- return free (ptr);
-}