/* Primitive array data callback for FollowReferences */
static jint JNICALL
cbPrimArrayData(jlong class_tag, jlong size, jlong* tag_ptr,
jint element_count, jvmtiPrimitiveType element_type,
const void* elements, void* user_data)
{
ObjectIndex object_index;
RefIndex ref_index;
RefIndex prev_ref_index;
HPROF_ASSERT(tag_ptr!=NULL);
HPROF_ASSERT(class_tag!=(jlong)0);
HPROF_ASSERT((*tag_ptr)!=(jlong)0);
if ( class_tag == (jlong)0 || (*tag_ptr) == (jlong)0 ) {
/* We can't do anything with a class_tag==0, just skip it */
return JVMTI_VISIT_OBJECTS;
}
/* Assume object has been tagged, get object index */
object_index = tag_extract((*tag_ptr));
/* Save string data */
prev_ref_index = object_get_references(object_index);
ref_index = reference_prim_array(prev_ref_index,
element_type, elements, element_count);
object_set_references(object_index, ref_index);
return JVMTI_VISIT_OBJECTS;
}
/* JVMTI callback function. */
static jvmtiIterationControl JNICALL
reference_object(jvmtiObjectReferenceKind reference_kind,
jlong class_tag, jlong size, jlong* tag_ptr,
jlong referrer_tag, jint referrer_index, void *user_data)
{
/* Only calls to Allocate, Deallocate, RawMonitorEnter & RawMonitorExit
* are allowed here (see the JVMTI Spec).
*/
RefIndex ref_index;
RefIndex prev_ref_index;
ObjectIndex referrer_object_index;
ObjectIndex object_index;
jlong object_tag;
HPROF_ASSERT(tag_ptr!=NULL);
HPROF_ASSERT(referrer_tag!=(jlong)0);
if ( referrer_tag != (jlong)0 ) {
referrer_object_index = tag_extract(referrer_tag);
} else {
return JVMTI_ITERATION_CONTINUE;
}
object_tag = *tag_ptr;
if ( object_tag != (jlong)0 ) {
object_index = tag_extract(object_tag);
} else {
SiteIndex site_index;
site_index = site_find_or_create(find_cnum(class_tag),
gdata->system_trace_index);
object_index = object_new(site_index, (jint)size, OBJECT_SYSTEM,
gdata->system_thread_serial_num);
object_tag = tag_create(object_index);
*tag_ptr = object_tag;
}
/* Save reference information */
prev_ref_index = object_get_references(referrer_object_index);
ref_index = reference_new(prev_ref_index, reference_kind,
class_tag, size, object_tag, referrer_index);
object_set_references(referrer_object_index, ref_index);
return JVMTI_ITERATION_CONTINUE;
}
/* Primitive field data callback for FollowReferences */
static jint JNICALL
cbPrimFieldData(jvmtiHeapReferenceKind reference_kind,
const jvmtiHeapReferenceInfo* reference_info, jlong class_tag,
jlong* tag_ptr, jvalue value, jvmtiPrimitiveType value_type,
void* user_data)
{
ObjectIndex object_index;
jint field_index;
RefIndex ref_index;
RefIndex prev_ref_index;
HPROF_ASSERT(tag_ptr!=NULL);
HPROF_ASSERT(class_tag!=(jlong)0);
HPROF_ASSERT((*tag_ptr)!=(jlong)0);
if ( class_tag == (jlong)0 || (*tag_ptr) == (jlong)0 ) {
/* We can't do anything with a class_tag==0, just skip it */
return JVMTI_VISIT_OBJECTS;
}
/* If the field is 0, just skip it, we assume 0 */
if ( value.j == (jlong)0 ) {
return JVMTI_VISIT_OBJECTS;
}
/* Get field index */
field_index = reference_info->field.index;
/* We assume the object was tagged */
object_index = tag_extract((*tag_ptr));
/* Save primitive field data */
prev_ref_index = object_get_references(object_index);
ref_index = reference_prim_field(prev_ref_index, reference_kind,
value_type, value, field_index);
object_set_references(object_index, ref_index);
return JVMTI_VISIT_OBJECTS;
}
/* Walk all references for an ObjectIndex and construct the hprof CLASS dump. */
static void
dump_class_and_supers(JNIEnv *env, ObjectIndex object_index, RefIndex list)
{
SiteIndex site_index;
SerialNumber trace_serial_num;
RefIndex index;
ClassIndex super_cnum;
ObjectIndex super_index;
LoaderIndex loader_index;
ObjectIndex signers_index;
ObjectIndex domain_index;
FieldInfo *fields;
jvalue *fvalues;
jint n_fields;
jboolean skip_fields;
jint n_fields_set;
jlong size;
ClassIndex cnum;
char *sig;
ObjectKind kind;
TraceIndex trace_index;
Stack *cpool_values;
ConstantPoolValue *cpool;
jint cpool_count;
HPROF_ASSERT(object_index!=0);
kind = object_get_kind(object_index);
if ( kind != OBJECT_CLASS ) {
return;
}
site_index = object_get_site(object_index);
HPROF_ASSERT(site_index!=0);
cnum = site_get_class_index(site_index);
HPROF_ASSERT(cnum!=0);
if ( class_get_status(cnum) & CLASS_DUMPED ) {
return;
}
class_add_status(cnum, CLASS_DUMPED);
size = (jlong)object_get_size(object_index);
super_index = 0;
super_cnum = class_get_super(cnum);
if ( super_cnum != 0 ) {
super_index = class_get_object_index(super_cnum);
if ( super_index != 0 ) {
dump_class_and_supers(env, super_index,
object_get_references(super_index));
}
}
trace_index = site_get_trace_index(site_index);
HPROF_ASSERT(trace_index!=0);
trace_serial_num = trace_get_serial_number(trace_index);
sig = string_get(class_get_signature(cnum));
loader_index = class_get_loader(cnum);
signers_index = 0;
domain_index = 0;
/* Get field information */
n_fields = 0;
skip_fields = JNI_FALSE;
n_fields_set = 0;
fields = NULL;
fvalues = NULL;
if ( class_get_all_fields(env, cnum, &n_fields, &fields) == 1 ) {
/* Problems getting all the fields, can't trust field index values */
skip_fields = JNI_TRUE;
/* Class with no references at all? (ok to be unprepared if list==0?) */
if ( list != 0 ) {
/* It is assumed that the reason why we didn't get the fields
* was because the class is not prepared.
*/
if ( gdata->debugflags & DEBUGFLAG_UNPREPARED_CLASSES ) {
dump_ref_list(list);
debug_message("Unprepared class with references: %s\n",
sig);
}
HPROF_ERROR(JNI_FALSE, "Trouble with unprepared classes");
}
/* Why would an unprepared class contain references? */
}
if ( n_fields > 0 ) {
fvalues = (jvalue*)HPROF_MALLOC(n_fields*(int)sizeof(jvalue));
(void)memset(fvalues, 0, n_fields*(int)sizeof(jvalue));
}
/* We use a Stack just because it will automatically expand as needed */
cpool_values = stack_init(16, 16, sizeof(ConstantPoolValue));
cpool = NULL;
cpool_count = 0;
index = list;
while ( index != 0 ) {
RefInfo *info;
jvalue ovalue;
static jvalue empty_value;
info = get_info(index);
switch ( info->flavor ) {
case INFO_OBJECT_REF_DATA:
switch ( info->refKind ) {
case JVMTI_HEAP_REFERENCE_FIELD:
case JVMTI_HEAP_REFERENCE_ARRAY_ELEMENT:
/* Should never be seen on a class dump */
HPROF_ASSERT(0);
break;
case JVMTI_HEAP_REFERENCE_STATIC_FIELD:
if ( skip_fields == JNI_TRUE ) {
break;
}
ovalue = empty_value;
ovalue.i = info->object_index;
fill_in_field_value(list, fields, fvalues, n_fields,
info->index, ovalue, 0);
n_fields_set++;
HPROF_ASSERT(n_fields_set <= n_fields);
break;
case JVMTI_HEAP_REFERENCE_CONSTANT_POOL: {
ConstantPoolValue cpv;
ObjectIndex cp_object_index;
SiteIndex cp_site_index;
ClassIndex cp_cnum;
cp_object_index = info->object_index;
HPROF_ASSERT(cp_object_index!=0);
cp_site_index = object_get_site(cp_object_index);
HPROF_ASSERT(cp_site_index!=0);
cp_cnum = site_get_class_index(cp_site_index);
cpv.constant_pool_index = info->index;
cpv.sig_index = class_get_signature(cp_cnum);
cpv.value.i = cp_object_index;
stack_push(cpool_values, (void*)&cpv);
cpool_count++;
break;
}
case JVMTI_HEAP_REFERENCE_SIGNERS:
signers_index = info->object_index;
break;
case JVMTI_HEAP_REFERENCE_PROTECTION_DOMAIN:
domain_index = info->object_index;
break;
case JVMTI_HEAP_REFERENCE_CLASS_LOADER:
case JVMTI_HEAP_REFERENCE_INTERFACE:
default:
/* Ignore, not needed */
break;
}
break;
case INFO_PRIM_FIELD_DATA:
if ( skip_fields == JNI_TRUE ) {
break;
}
HPROF_ASSERT(info->primType!=0);
HPROF_ASSERT(info->length==-1);
HPROF_ASSERT(info->refKind==JVMTI_HEAP_REFERENCE_STATIC_FIELD);
ovalue = get_key_value(index);
fill_in_field_value(list, fields, fvalues, n_fields,
info->index, ovalue, info->primType);
n_fields_set++;
HPROF_ASSERT(n_fields_set <= n_fields);
break;
case INFO_PRIM_ARRAY_DATA:
default:
/* Should never see these */
HPROF_ASSERT(0);
break;
}
index = info->next;
}
/* Get constant pool data if we have any */
HPROF_ASSERT(cpool_count==stack_depth(cpool_values));
if ( cpool_count > 0 ) {
cpool = (ConstantPoolValue*)stack_element(cpool_values, 0);
}
io_heap_class_dump(cnum, sig, object_index, trace_serial_num,
super_index,
loader_object_index(env, loader_index),
signers_index, domain_index,
(jint)size, cpool_count, cpool, n_fields, fields, fvalues);
stack_term(cpool_values);
if ( fvalues != NULL ) {
HPROF_FREE(fvalues);
}
}
/* Store away plain object reference information */
static jint
objectReference(jvmtiHeapReferenceKind reference_kind,
const jvmtiHeapReferenceInfo* reference_info,
jlong class_tag, jlong size, jlong* tag_ptr,
jlong* referrer_tag_ptr, jint length)
{
ObjectIndex object_index;
jint reference_index;
RefIndex ref_index;
RefIndex prev_ref_index;
ObjectIndex referrer_object_index;
jlong object_tag;
HPROF_ASSERT(tag_ptr!=NULL);
HPROF_ASSERT(class_tag!=(jlong)0);
HPROF_ASSERT(referrer_tag_ptr!=NULL);
HPROF_ASSERT((*referrer_tag_ptr)!=(jlong)0);
if ( class_tag == (jlong)0 || (*referrer_tag_ptr) == (jlong)0 ) {
/* We can't do anything with a class_tag==0, just skip it */
return JVMTI_VISIT_OBJECTS;
}
switch ( reference_kind ) {
default:
/* Currently we don't need these */
return JVMTI_VISIT_OBJECTS;
case JVMTI_HEAP_REFERENCE_FIELD:
case JVMTI_HEAP_REFERENCE_STATIC_FIELD:
reference_index = reference_info->field.index;
break;
case JVMTI_HEAP_REFERENCE_ARRAY_ELEMENT:
reference_index = reference_info->array.index;
break;
case JVMTI_HEAP_REFERENCE_CONSTANT_POOL:
reference_index = reference_info->constant_pool.index;
break;
case JVMTI_HEAP_REFERENCE_SIGNERS:
case JVMTI_HEAP_REFERENCE_PROTECTION_DOMAIN:
case JVMTI_HEAP_REFERENCE_CLASS_LOADER:
case JVMTI_HEAP_REFERENCE_INTERFACE:
reference_index = 0;
break;
}
/* We assume the referrer is tagged */
referrer_object_index = tag_extract((*referrer_tag_ptr));
/* Now check the referree */
object_tag = *tag_ptr;
if ( object_tag != (jlong)0 ) {
object_index = tag_extract(object_tag);
} else {
/* Create and set the tag. */
object_tag = make_new_tag(class_tag, size, gdata->system_trace_index,
gdata->unknown_thread_serial_num,
&object_index, NULL);
*tag_ptr = object_tag;
}
HPROF_ASSERT(object_index!=0);
/* Save reference information */
prev_ref_index = object_get_references(referrer_object_index);
ref_index = reference_obj(prev_ref_index, reference_kind,
object_index, reference_index, length);
object_set_references(referrer_object_index, ref_index);
return JVMTI_VISIT_OBJECTS;
}
/* Walk all references for an ObjectIndex and construct the hprof CLASS dump. */
static void
dump_class_and_supers(JNIEnv *env, ObjectIndex object_index, RefIndex list)
{
SiteIndex site_index;
SerialNumber trace_serial_num;
RefIndex index;
ClassIndex super_cnum;
ObjectIndex super_index;
LoaderIndex loader_index;
ObjectIndex signers_index;
ObjectIndex domain_index;
FieldInfo *fields;
jvalue *fvalues;
jint n_fields;
jlong size;
ClassIndex cnum;
char *sig;
ObjectKind kind;
TraceIndex trace_index;
Stack *cpool_values;
ConstantPoolValue *cpool;
jint cpool_count;
jboolean skip_fields;
HPROF_ASSERT(object_index!=0);
kind = object_get_kind(object_index);
if ( kind != OBJECT_CLASS ) {
return;
}
site_index = object_get_site(object_index);
HPROF_ASSERT(site_index!=0);
cnum = site_get_class_index(site_index);
HPROF_ASSERT(cnum!=0);
if ( class_get_status(cnum) & CLASS_DUMPED ) {
return;
}
class_add_status(cnum, CLASS_DUMPED);
size = (jlong)object_get_size(object_index);
super_index = 0;
super_cnum = class_get_super(cnum);
if ( super_cnum != 0 ) {
super_index = class_get_object_index(super_cnum);
if ( super_index != 0 ) {
dump_class_and_supers(env, super_index,
object_get_references(super_index));
}
}
trace_index = site_get_trace_index(site_index);
HPROF_ASSERT(trace_index!=0);
trace_serial_num = trace_get_serial_number(trace_index);
sig = string_get(class_get_signature(cnum));
n_fields = 0;
fields = NULL;
fvalues = NULL;
skip_fields = JNI_TRUE;
if ( class_get_all_fields(env, cnum, &n_fields, &fields) == 0 ) {
if ( n_fields > 0 ) {
skip_fields = JNI_FALSE;
fvalues = (jvalue*)HPROF_MALLOC(n_fields*(int)sizeof(jvalue));
(void)memset(fvalues, 0, n_fields*(int)sizeof(jvalue));
}
}
/* We use a Stack just because it will automatically expand as needed */
cpool_values = stack_init(16, 16, sizeof(ConstantPoolValue));
cpool = NULL;
cpool_count = 0;
loader_index = class_get_loader(cnum);
signers_index = 0;
domain_index = 0;
index = list;
while ( index != 0 ) {
RefInfo *info;
info = get_info(index);
/* Process reference objects, many not used right now. */
switch ( info->kind ) {
case JVMTI_REFERENCE_STATIC_FIELD:
/* If the class_tag is 0, it is possible for
* info->element_index to be >= n_fields
* and when this happens we just skip this field ref
* for now. We probably have a java.lang.Object class
* with n_fields==0, which is probably the wrong class.
*/
if (info->class_tag == (jlong)0 || skip_fields == JNI_TRUE ) {
break;
}
HPROF_ASSERT(info->element_index < n_fields);
if (info->element_index < n_fields) {
ObjectIndex field_object_index;
/* Field index is referrer_index from referrer_tag */
field_object_index = tag_to_object_index(info->object_tag);
fvalues[info->element_index].i = field_object_index;
}
break;
case JVMTI_REFERENCE_CONSTANT_POOL: {
ConstantPoolValue cpv;
ObjectIndex cp_object_index;
SiteIndex cp_site_index;
ClassIndex cp_cnum;
cp_object_index = tag_to_object_index(info->object_tag);
HPROF_ASSERT(cp_object_index!=0);
cp_site_index = object_get_site(cp_object_index);
HPROF_ASSERT(cp_site_index!=0);
cp_cnum = site_get_class_index(cp_site_index);
cpv.constant_pool_index = info->element_index;
cpv.sig_index = class_get_signature(cp_cnum);
cpv.value.i = cp_object_index;
stack_push(cpool_values, (void*)&cpv);
cpool_count++;
break;
}
default:
break;
}
index = info->next;
}
/* FIXUP: Fill rest of static primitive fields? If requested? */
/* Use: value = getStaticFieldValue(env, klass, field, field_sig); ? */
HPROF_ASSERT(cpool_count==stack_depth(cpool_values));
if ( cpool_count > 0 ) {
cpool = (ConstantPoolValue*)stack_element(cpool_values, 0);
}
io_heap_class_dump(cnum, sig, object_index, trace_serial_num,
super_index, loader_index, signers_index, domain_index,
(jint)size, cpool_count, cpool, n_fields, fields, fvalues);
stack_term(cpool_values);
if ( fvalues != NULL ) {
HPROF_FREE(fvalues);
}
}
