#include <config.h>
#include <platform.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <gcj/cni.h>
#include <jvm.h>
#include <java-signal.h>
#include <java-threads.h>
#ifdef ENABLE_JVMPI
#include <jvmpi.h>
#include <java/lang/ThreadGroup.h>
#endif
#ifndef DISABLE_GETENV_PROPERTIES
#include <ctype.h>
#include <java-props.h>
#define PROCESS_GCJ_PROPERTIES process_gcj_properties()
#else
#define PROCESS_GCJ_PROPERTIES
#endif // DISABLE_GETENV_PROPERTIES
#include <java/lang/Class.h>
#include <java/lang/ClassLoader.h>
#include <java/lang/Runtime.h>
#include <java/lang/String.h>
#include <java/lang/Thread.h>
#include <java/lang/ThreadGroup.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>
#include <java/lang/System.h>
#include <java/lang/VMThrowable.h>
#include <java/lang/reflect/Modifier.h>
#include <java/io/PrintStream.h>
#include <java/lang/UnsatisfiedLinkError.h>
#include <java/lang/VirtualMachineError.h>
#include <gnu/gcj/runtime/VMClassLoader.h>
#include <gnu/gcj/runtime/FinalizerThread.h>
#include <gnu/gcj/runtime/FirstThread.h>
#ifdef USE_LTDL
#include <ltdl.h>
#endif
static java::lang::OutOfMemoryError *no_memory;
#define SIZE_T_MAX ((size_t) (~ (size_t) 0))
static const char *no_properties[] = { NULL };
const char **_Jv_Compiler_Properties = no_properties;
const char *_Jv_Jar_Class_Path;
#ifndef DISABLE_GETENV_PROPERTIES
property_pair *_Jv_Environment_Properties;
#endif
static char *_Jv_execName;
const char **_Jv_argv;
int _Jv_argc;
#ifdef ENABLE_JVMPI
void (*_Jv_JVMPI_Notify_OBJECT_ALLOC) (JVMPI_Event *event);
void (*_Jv_JVMPI_Notify_THREAD_START) (JVMPI_Event *event);
void (*_Jv_JVMPI_Notify_THREAD_END) (JVMPI_Event *event);
#endif
extern "C" void _Jv_ThrowSignal (jthrowable) __attribute ((noreturn));
void
_Jv_ThrowSignal (jthrowable throwable)
{
throwable->fillInStackTrace ();
throw throwable;
}
#ifdef HANDLE_SEGV
static java::lang::NullPointerException *nullp;
SIGNAL_HANDLER (catch_segv)
{
MAKE_THROW_FRAME (nullp);
_Jv_ThrowSignal (nullp);
}
#endif
static java::lang::ArithmeticException *arithexception;
#ifdef HANDLE_FPE
SIGNAL_HANDLER (catch_fpe)
{
#ifdef HANDLE_DIVIDE_OVERFLOW
HANDLE_DIVIDE_OVERFLOW;
#else
MAKE_THROW_FRAME (arithexception);
#endif
_Jv_ThrowSignal (arithexception);
}
#endif
jboolean
_Jv_equalUtf8Consts (Utf8Const* a, Utf8Const *b)
{
int len;
_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;
}
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);
unsigned char* ptr = (unsigned char*) a->data;
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;
}
jboolean
_Jv_equaln (Utf8Const *a, jstring str, jint n)
{
jint len = str->length();
jint i = 0;
jchar *sptr = _Jv_GetStringChars (str);
unsigned char* ptr = (unsigned char*) a->data;
unsigned char* limit = ptr + a->length;
for (; n-- > 0; i++, sptr++)
{
int ch = UTF8_GET (ptr, limit);
if (i == len)
return ch < 0;
if (ch != *sptr)
return false;
}
return true;
}
int
_Jv_strLengthUtf8(char* str, int len)
{
unsigned char* ptr;
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);
}
static jint
hashUtf8String (char* str, int len)
{
unsigned char* ptr = (unsigned char*) str;
unsigned char* limit = ptr + len;
jint hash = 0;
for (; ptr < limit;)
{
int ch = UTF8_GET (ptr, limit);
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);
memcpy (m->data, s, len);
m->data[len] = 0;
m->length = len;
m->hash = hashUtf8String (s, len) & 0xFFFF;
return (m);
}
_Jv_Utf8Const *
_Jv_makeUtf8Const (jstring string)
{
jint hash = string->hashCode ();
jint len = _Jv_GetStringUTFLength (string);
Utf8Const* m = (Utf8Const*)
_Jv_AllocBytes (sizeof(Utf8Const) + len + 1);
m->hash = hash;
m->length = len;
_Jv_GetStringUTFRegion (string, 0, string->length (), m->data);
m->data[len] = 0;
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
fprintf (stderr, "libgcj failure: %s\n", message);
#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)
{
throw new java::lang::ArrayIndexOutOfBoundsException
(java::lang::String::valueOf (bad_index));
}
void
_Jv_ThrowNullPointerException ()
{
throw new java::lang::NullPointerException;
}
void _Jv_ThrowNoMemory()
{
throw no_memory;
}
#ifdef ENABLE_JVMPI
static void
jvmpi_notify_alloc(jclass klass, jint size, jobject obj)
{
if (__builtin_expect (_Jv_JVMPI_Notify_OBJECT_ALLOC != 0, false))
{
JVMPI_Event event;
event.event_type = JVMPI_EVENT_OBJECT_ALLOC;
event.env_id = NULL;
event.u.obj_alloc.arena_id = 0;
event.u.obj_alloc.class_id = (jobjectID) klass;
event.u.obj_alloc.is_array = 0;
event.u.obj_alloc.size = size;
event.u.obj_alloc.obj_id = (jobjectID) obj;
_Jv_DisableGC ();
(*_Jv_JVMPI_Notify_OBJECT_ALLOC) (&event);
_Jv_EnableGC ();
}
}
#else
# define jvmpi_notify_alloc(klass,size,obj)
#endif
jobject
_Jv_AllocObjectNoInitNoFinalizer (jclass klass, jint size)
{
jobject obj = (jobject) _Jv_AllocObj (size, klass);
jvmpi_notify_alloc (klass, size, obj);
return obj;
}
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;
}
jobject
_Jv_AllocObject (jclass klass, jint size)
{
jobject obj = _Jv_AllocObjectNoFinalizer (klass, size);
if (klass->vtable->get_finalizer ()
!= java::lang::Object::class$.vtable->get_finalizer ())
_Jv_RegisterFinalizer (obj, _Jv_FinalizeObject);
return obj;
}
#ifdef JV_HASH_SYNCHRONIZATION
jobject
_Jv_AllocPtrFreeObject (jclass klass, jint size)
{
_Jv_InitClass (klass);
jobject obj = (jobject) _Jv_AllocPtrFreeObj (size, klass);
#ifdef ENABLE_JVMPI
if (__builtin_expect (_Jv_JVMPI_Notify_OBJECT_ALLOC != 0, false))
{
JVMPI_Event event;
event.event_type = JVMPI_EVENT_OBJECT_ALLOC;
event.env_id = NULL;
event.u.obj_alloc.arena_id = 0;
event.u.obj_alloc.class_id = (jobjectID) klass;
event.u.obj_alloc.is_array = 0;
event.u.obj_alloc.size = size;
event.u.obj_alloc.obj_id = (jobjectID) obj;
_Jv_DisableGC ();
(*_Jv_JVMPI_Notify_OBJECT_ALLOC) (&event);
_Jv_EnableGC ();
}
#endif
return obj;
}
#endif
jobjectArray
_Jv_NewObjectArray (jsize count, jclass elementClass, jobject init)
{
if (__builtin_expect (count < 0, false))
throw new java::lang::NegativeArraySizeException;
JvAssert (! elementClass->isPrimitive ());
jobjectArray obj = NULL;
size_t size = (size_t) elements (obj);
size += count * sizeof (jobject);
jclass klass = _Jv_GetArrayClass (elementClass,
elementClass->getClassLoaderInternal());
obj = (jobjectArray) _Jv_AllocArray (size, klass);
jsize *lp = const_cast<jsize *> (&obj->length);
*lp = count;
if (init)
{
jobject *ptr = elements(obj);
while (--count >= 0)
*ptr++ = init;
}
return obj;
}
jobject
_Jv_NewPrimArray (jclass eltype, jint count)
{
int elsize = eltype->size();
if (__builtin_expect (count < 0, false))
throw new java::lang::NegativeArraySizeException;
JvAssert (eltype->isPrimitive ());
jobject dummy = NULL;
size_t size = (size_t) _Jv_GetArrayElementFromElementType (dummy, eltype);
if (__builtin_expect ((size_t) count >
(SIZE_T_MAX - size) / elsize, false))
throw no_memory;
jclass klass = _Jv_GetArrayClass (eltype, 0);
# ifdef JV_HASH_SYNCHRONIZATION
__JArray *arr =
(__JArray*) _Jv_AllocPtrFreeObj (size + elsize * count, klass);
memset((char *)arr + size, 0, elsize * count);
# else
__JArray *arr = (__JArray*) _Jv_AllocObj (size + elsize * count, klass);
# endif
jsize *lp = const_cast<jsize *> (&arr->length);
*lp = count;
return arr;
}
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);
}
throw new java::lang::InternalError
(JvNewStringLatin1 ("invalid type code in _Jv_NewArray"));
}
static jobject
_Jv_NewMultiArrayUnchecked (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_NewMultiArrayUnchecked (element_type, dimensions - 1,
sizes + 1);
}
return result;
}
jobject
_Jv_NewMultiArray (jclass type, jint dimensions, jint *sizes)
{
for (int i = 0; i < dimensions; ++i)
if (sizes[i] < 0)
throw new java::lang::NegativeArraySizeException;
return _Jv_NewMultiArrayUnchecked (type, dimensions, sizes);
}
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);
if (size < 0)
throw new java::lang::NegativeArraySizeException;
sizes[i] = size;
}
va_end (args);
return _Jv_NewMultiArrayUnchecked (array_type, dimensions, sizes);
}
#define DECLARE_PRIM_TYPE(NAME) \
_Jv_ArrayVTable _Jv_##NAME##VTable; \
java::lang::Class _Jv_##NAME##Class __attribute__ ((aligned (8)));
DECLARE_PRIM_TYPE(byte);
DECLARE_PRIM_TYPE(short);
DECLARE_PRIM_TYPE(int);
DECLARE_PRIM_TYPE(long);
DECLARE_PRIM_TYPE(boolean);
DECLARE_PRIM_TYPE(char);
DECLARE_PRIM_TYPE(float);
DECLARE_PRIM_TYPE(double);
DECLARE_PRIM_TYPE(void);
void
_Jv_InitPrimClass (jclass cl, char *cname, char sig, int len,
_Jv_ArrayVTable *array_vtable)
{
using namespace java::lang::reflect;
_Jv_InitNewClassFields (cl);
(*(_Jv_VTable **) cl) = java::lang::Class::class$.vtable;
cl->name = _Jv_makeUtf8Const ((char *) cname, -1);
cl->accflags = Modifier::PUBLIC | Modifier::FINAL | Modifier::ABSTRACT;
cl->method_count = sig;
cl->size_in_bytes = len;
cl->vtable = JV_PRIMITIVE_VTABLE;
cl->state = JV_STATE_DONE;
cl->depth = -1;
if (sig != 'V')
_Jv_NewArrayClass (cl, NULL, (_Jv_VTable *) array_vtable);
}
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 '[':
{
jclass klass = _Jv_FindClassFromSignature (&sig[1], loader);
if (! klass)
return NULL;
return _Jv_GetArrayClass (klass, loader);
}
}
return NULL; }
JArray<jstring> *
JvConvertArgv (int argc, const char **argv)
{
if (argc < 0)
argc = 0;
jobjectArray ar = JvNewObjectArray(argc, &StringClass, NULL);
jobject *ptr = elements(ar);
jbyteArray bytes = NULL;
for (int i = 0; i < argc; i++)
{
const char *arg = argv[i];
int len = strlen (arg);
if (bytes == NULL || bytes->length < len)
bytes = JvNewByteArray (len);
jbyte *bytePtr = elements (bytes);
memcpy (bytePtr, arg, len);
*ptr++ = new java::lang::String (bytes, 0, len);
}
return (JArray<jstring>*) ar;
}
static JArray<jstring> *arg_vec;
static java::lang::Thread *main_thread;
char *
_Jv_ThisExecutable (void)
{
return _Jv_execName;
}
void
_Jv_ThisExecutable (const char *name)
{
if (name)
{
_Jv_execName = (char *) _Jv_Malloc (strlen (name) + 1);
strcpy (_Jv_execName, name);
}
}
#ifndef DISABLE_GETENV_PROPERTIES
static char *
next_property_key (char *s, size_t *length)
{
size_t l = 0;
JvAssert (s);
while (isspace (*s))
s++;
if (*s == 0
|| *s == ':'
|| *s == '=')
return NULL;
while (s[l] != 0
&& ! isspace (s[l])
&& s[l] != ':'
&& s[l] != '=')
{
if (s[l] == '\\'
&& s[l+1] != 0)
l++;
l++;
}
*length = l;
return s;
}
static char *
next_property_value (char *s, size_t *length)
{
size_t l = 0;
JvAssert (s);
while (isspace (*s))
s++;
if (*s == ':'
|| *s == '=')
s++;
while (isspace (*s))
s++;
if (*s == 0)
return NULL;
while (s[l] != 0
&& ! isspace (s[l])
&& s[l] != ':'
&& s[l] != '=')
{
if (s[l] == '\\'
&& s[l+1] != 0)
l += 2;
else
l++;
}
*length = l;
return s;
}
static void
process_gcj_properties ()
{
char *props = getenv("GCJ_PROPERTIES");
char *p = props;
size_t length;
size_t property_count = 0;
if (NULL == props)
return;
while (p && (p = next_property_key (p, &length)))
{
p += length;
p = next_property_value (p, &length);
if (p)
p += length;
property_count++;
}
_Jv_Environment_Properties =
(property_pair *) malloc (sizeof(property_pair)
* (property_count + 1));
p = props;
property_count = 0;
while (p && (p = next_property_key (p, &length)))
{
_Jv_Environment_Properties[property_count].key = p;
_Jv_Environment_Properties[property_count].key_length = length;
p += length;
p = next_property_value (p, &length);
_Jv_Environment_Properties[property_count].value = p;
_Jv_Environment_Properties[property_count].value_length = length;
if (p)
p += length;
property_count++;
}
memset ((void *) &_Jv_Environment_Properties[property_count],
0, sizeof (property_pair));
{
size_t i = 0;
while (_Jv_Environment_Properties[i].key)
{
_Jv_Environment_Properties[i].key[_Jv_Environment_Properties[i].key_length] = 0;
_Jv_Environment_Properties[i++].value[_Jv_Environment_Properties[i].value_length] = 0;
}
}
}
#endif // DISABLE_GETENV_PROPERTIES
namespace gcj
{
_Jv_Utf8Const *void_signature;
_Jv_Utf8Const *clinit_name;
_Jv_Utf8Const *init_name;
_Jv_Utf8Const *finit_name;
bool runtimeInitialized = false;
}
jint
_Jv_CreateJavaVM (void* )
{
using namespace gcj;
if (runtimeInitialized)
return -1;
runtimeInitialized = true;
PROCESS_GCJ_PROPERTIES;
_Jv_InitThreads ();
_Jv_InitGC ();
_Jv_InitializeSyncMutex ();
void_signature = _Jv_makeUtf8Const ("()V", 3);
clinit_name = _Jv_makeUtf8Const ("<clinit>", 8);
init_name = _Jv_makeUtf8Const ("<init>", 6);
finit_name = _Jv_makeUtf8Const ("finit$", 6);
_Jv_InitPrimClass (&_Jv_byteClass, "byte", 'B', 1, &_Jv_byteVTable);
_Jv_InitPrimClass (&_Jv_shortClass, "short", 'S', 2, &_Jv_shortVTable);
_Jv_InitPrimClass (&_Jv_intClass, "int", 'I', 4, &_Jv_intVTable);
_Jv_InitPrimClass (&_Jv_longClass, "long", 'J', 8, &_Jv_longVTable);
_Jv_InitPrimClass (&_Jv_booleanClass, "boolean", 'Z', 1, &_Jv_booleanVTable);
_Jv_InitPrimClass (&_Jv_charClass, "char", 'C', 2, &_Jv_charVTable);
_Jv_InitPrimClass (&_Jv_floatClass, "float", 'F', 4, &_Jv_floatVTable);
_Jv_InitPrimClass (&_Jv_doubleClass, "double", 'D', 8, &_Jv_doubleVTable);
_Jv_InitPrimClass (&_Jv_voidClass, "void", 'V', 0, &_Jv_voidVTable);
_Jv_InitClass (&java::lang::VMThrowable::class$);
java::lang::VMThrowable::trace_enabled = 0;
INIT_SEGV;
#ifdef HANDLE_FPE
INIT_FPE;
#else
arithexception = new java::lang::ArithmeticException
(JvNewStringLatin1 ("/ by zero"));
#endif
no_memory = new java::lang::OutOfMemoryError;
java::lang::VMThrowable::trace_enabled = 1;
#ifdef USE_LTDL
LTDL_SET_PRELOADED_SYMBOLS ();
#endif
_Jv_platform_initialize ();
_Jv_JNI_Init ();
_Jv_GCInitializeFinalizers (&::gnu::gcj::runtime::FinalizerThread::finalizerReady);
try
{
using namespace gnu::gcj::runtime;
FinalizerThread *ft = new FinalizerThread ();
ft->start ();
}
catch (java::lang::VirtualMachineError *ignore)
{
}
return 0;
}
void
_Jv_RunMain (jclass klass, const char *name, int argc, const char **argv,
bool is_jar)
{
_Jv_argv = argv;
_Jv_argc = argc;
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
try
{
if (is_jar)
_Jv_Jar_Class_Path = strdup (name);
_Jv_CreateJavaVM (NULL);
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 FirstThread (klass, arg_vec);
else
main_thread = new FirstThread (JvNewStringLatin1 (name),
arg_vec, is_jar);
}
catch (java::lang::Throwable *t)
{
java::lang::System::err->println (JvNewStringLatin1
("Exception during runtime initialization"));
t->printStackTrace();
runtime->exit (1);
}
_Jv_AttachCurrentThread (main_thread);
_Jv_ThreadRun (main_thread);
_Jv_ThreadWait ();
int status = (int) java::lang::ThreadGroup::had_uncaught_exception;
runtime->exit (status);
}
void
JvRunMain (jclass klass, int argc, const char **argv)
{
_Jv_RunMain (klass, NULL, argc, argv, false);
}
static size_t
parse_heap_size (const char *spec)
{
char *end;
unsigned long val = strtoul (spec, &end, 10);
if (*end == 'k' || *end == 'K')
val *= 1024;
else if (*end == 'm' || *end == 'M')
val *= 1048576;
return (size_t) val;
}
void
_Jv_SetInitialHeapSize (const char *arg)
{
size_t size = parse_heap_size (arg);
_Jv_GCSetInitialHeapSize (size);
}
void
_Jv_SetMaximumHeapSize (const char *arg)
{
size_t size = parse_heap_size (arg);
_Jv_GCSetMaximumHeapSize (size);
}
void *
_Jv_Malloc (jsize size)
{
if (__builtin_expect (size == 0, false))
size = 1;
void *ptr = malloc ((size_t) size);
if (__builtin_expect (ptr == NULL, false))
throw no_memory;
return ptr;
}
void *
_Jv_Realloc (void *ptr, jsize size)
{
if (__builtin_expect (size == 0, false))
size = 1;
ptr = realloc (ptr, (size_t) size);
if (__builtin_expect (ptr == NULL, false))
throw no_memory;
return ptr;
}
void *
_Jv_MallocUnchecked (jsize size)
{
if (__builtin_expect (size == 0, false))
size = 1;
return malloc ((size_t) size);
}
void
_Jv_Free (void* ptr)
{
return free (ptr);
}
jint
_Jv_divI (jint dividend, jint divisor)
{
if (__builtin_expect (divisor == 0, false))
_Jv_ThrowSignal (arithexception);
if (dividend == (jint) 0x80000000L && divisor == -1)
return dividend;
return dividend / divisor;
}
jint
_Jv_remI (jint dividend, jint divisor)
{
if (__builtin_expect (divisor == 0, false))
_Jv_ThrowSignal (arithexception);
if (dividend == (jint) 0x80000000L && divisor == -1)
return 0;
return dividend % divisor;
}
jlong
_Jv_divJ (jlong dividend, jlong divisor)
{
if (__builtin_expect (divisor == 0, false))
_Jv_ThrowSignal (arithexception);
if (dividend == (jlong) 0x8000000000000000LL && divisor == -1)
return dividend;
return dividend / divisor;
}
jlong
_Jv_remJ (jlong dividend, jlong divisor)
{
if (__builtin_expect (divisor == 0, false))
_Jv_ThrowSignal (arithexception);
if (dividend == (jlong) 0x8000000000000000LL && divisor == -1)
return 0;
return dividend % divisor;
}