/* Walk all references for an ObjectIndex and construct the hprof INST dump. */
static void
dump_instance(JNIEnv *env, ObjectIndex object_index, RefIndex list)
{
jvmtiPrimitiveType primType;
SiteIndex site_index;
SerialNumber trace_serial_num;
RefIndex index;
ObjectIndex class_index;
jlong size;
ClassIndex cnum;
char *sig;
void *elements;
jint num_elements;
jint num_bytes;
ObjectIndex *values;
FieldInfo *fields;
jvalue *fvalues;
jint n_fields;
jboolean skip_fields;
jint n_fields_set;
ObjectKind kind;
TraceIndex trace_index;
jboolean is_array;
jboolean is_prim_array;
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);
size = (jlong)object_get_size(object_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));
class_index = class_get_object_index(cnum);
values = NULL;
elements = NULL;
num_elements = 0;
num_bytes = 0;
n_fields = 0;
skip_fields = JNI_FALSE;
n_fields_set = 0;
fields = NULL;
fvalues = NULL;
index = list;
is_array = JNI_FALSE;
is_prim_array = JNI_FALSE;
if ( sig[0] != JVM_SIGNATURE_ARRAY ) {
if ( class_get_all_fields(env, cnum, &n_fields, &fields) == 1 ) {
/* Trouble getting all the fields, can't trust field index values */
skip_fields = JNI_TRUE;
/* 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 ) {
if ( list != 0 ) {
dump_ref_list(list);
debug_message("Instance of unprepared class with refs: %s\n",
sig);
} else {
debug_message("Instance of unprepared class without refs: %s\n",
sig);
}
HPROF_ERROR(JNI_FALSE, "Big Trouble with unprepared class instances");
}
}
if ( n_fields > 0 ) {
fvalues = (jvalue*)HPROF_MALLOC(n_fields*(int)sizeof(jvalue));
(void)memset(fvalues, 0, n_fields*(int)sizeof(jvalue));
}
} else {
is_array = JNI_TRUE;
if ( sig[0] != 0 && sigToPrimSize(sig+1) != 0 ) {
is_prim_array = JNI_TRUE;
}
}
while ( index != 0 ) {
RefInfo *info;
jvalue ovalue;
static jvalue empty_value;
info = get_info(index);
/* Process reference objects, many not used right now. */
switch ( info->flavor ) {
case INFO_OBJECT_REF_DATA:
switch ( info->refKind ) {
case JVMTI_HEAP_REFERENCE_SIGNERS:
case JVMTI_HEAP_REFERENCE_PROTECTION_DOMAIN:
case JVMTI_HEAP_REFERENCE_CLASS_LOADER:
case JVMTI_HEAP_REFERENCE_INTERFACE:
case JVMTI_HEAP_REFERENCE_STATIC_FIELD:
case JVMTI_HEAP_REFERENCE_CONSTANT_POOL:
/* Should never be seen on an instance dump */
HPROF_ASSERT(0);
break;
case JVMTI_HEAP_REFERENCE_FIELD:
if ( skip_fields == JNI_TRUE ) {
break;
}
HPROF_ASSERT(is_array!=JNI_TRUE);
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_ARRAY_ELEMENT:
/* We get each object element one at a time. */
HPROF_ASSERT(is_array==JNI_TRUE);
HPROF_ASSERT(is_prim_array!=JNI_TRUE);
if ( num_elements <= info->index ) {
int nbytes;
if ( values == NULL ) {
num_elements = info->index + 1;
nbytes = num_elements*(int)sizeof(ObjectIndex);
values = (ObjectIndex*)HPROF_MALLOC(nbytes);
(void)memset(values, 0, nbytes);
} else {
void *new_values;
int new_size;
int obytes;
obytes = num_elements*(int)sizeof(ObjectIndex);
new_size = info->index + 1;
nbytes = new_size*(int)sizeof(ObjectIndex);
new_values = (void*)HPROF_MALLOC(nbytes);
(void)memcpy(new_values, values, obytes);
(void)memset(((char*)new_values)+obytes, 0,
nbytes-obytes);
HPROF_FREE(values);
num_elements = new_size;
values = new_values;
}
}
HPROF_ASSERT(values[info->index]==0);
values[info->index] = info->object_index;
break;
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_FIELD);
HPROF_ASSERT(is_array!=JNI_TRUE);
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:
/* Should only be one, and it's handled below */
HPROF_ASSERT(info->refKind==0);
/* We assert that nothing else was saved with this array */
HPROF_ASSERT(index==list&&info->next==0);
HPROF_ASSERT(is_array==JNI_TRUE);
HPROF_ASSERT(is_prim_array==JNI_TRUE);
primType = info->primType;
elements = get_key_elements(index, primType,
&num_elements, &num_bytes);
HPROF_ASSERT(info->length==num_elements);
size = num_bytes;
break;
default:
HPROF_ASSERT(0);
break;
}
index = info->next;
}
if ( is_array == JNI_TRUE ) {
if ( is_prim_array == JNI_TRUE ) {
HPROF_ASSERT(values==NULL);
io_heap_prim_array(object_index, trace_serial_num,
(jint)size, num_elements, sig, elements);
} else {
HPROF_ASSERT(elements==NULL);
io_heap_object_array(object_index, trace_serial_num,
(jint)size, num_elements, sig, values, class_index);
}
} else {
io_heap_instance_dump(cnum, object_index, trace_serial_num,
class_index, (jint)size, sig, fields, fvalues, n_fields);
}
if ( values != NULL ) {
HPROF_FREE(values);
}
if ( fvalues != NULL ) {
HPROF_FREE(fvalues);
}
if ( elements != NULL ) {
/* Do NOT free elements, it's a key in the table, leave it be */
}
}
/* 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);
}
}
/* JVMTI callback function. */
static jvmtiIterationControl JNICALL
root_object(jvmtiHeapRootKind root_kind, jlong class_tag, jlong size,
jlong* tag_ptr, void *user_data)
{
/* Only calls to Allocate, Deallocate, RawMonitorEnter & RawMonitorExit
* are allowed here (see the JVMTI Spec).
*/
ObjectIndex object_index;
SiteIndex object_site_index;
HPROF_ASSERT(tag_ptr!=NULL);
switch ( root_kind ) {
case JVMTI_HEAP_ROOT_JNI_GLOBAL: {
SerialNumber trace_serial_num;
SerialNumber gref_serial_num;
TraceIndex trace_index;
setup_tag_on_root(tag_ptr, class_tag, size,
gdata->unknown_thread_serial_num,
&object_index, &object_site_index);
if ( object_site_index != 0 ) {
SiteKey *pkey;
pkey = get_pkey(object_site_index);
trace_index = pkey->trace_index;
} else {
trace_index = gdata->system_trace_index;
}
trace_serial_num = trace_get_serial_number(trace_index);
gref_serial_num = gdata->gref_serial_number_counter++;
io_heap_root_jni_global(object_index, gref_serial_num,
trace_serial_num);
break;
}
case JVMTI_HEAP_ROOT_SYSTEM_CLASS: {
char *sig;
setup_tag_on_root(tag_ptr, class_tag, size,
gdata->unknown_thread_serial_num,
&object_index, &object_site_index);
sig = "Unknown";
if ( object_site_index != 0 ) {
SiteKey *pkey;
pkey = get_pkey(object_site_index);
sig = string_get(class_get_signature(pkey->cnum));
}
io_heap_root_system_class(object_index, sig);
break;
}
case JVMTI_HEAP_ROOT_MONITOR: {
setup_tag_on_root(tag_ptr, class_tag, size,
gdata->unknown_thread_serial_num,
&object_index, NULL);
io_heap_root_monitor(object_index);
break;
}
case JVMTI_HEAP_ROOT_THREAD: {
SerialNumber thread_serial_num;
SerialNumber trace_serial_num;
TraceIndex trace_index;
TlsIndex tls_index;
if ( (*tag_ptr) != (jlong)0 ) {
setup_tag_on_root(tag_ptr, class_tag, size, 0,
&object_index, &object_site_index);
trace_index = site_get_trace_index(object_site_index);
/* Hopefully the ThreadStart event put this thread's
* correct serial number on it's object.
*/
thread_serial_num = object_get_thread_serial_number(object_index);
} else {
/* Rare situation that a Thread object is not tagged.
* Create special unique thread serial number in this
* case, probably means we never saw a thread start
* or thread end, or even an allocation of the thread
* object.
*/
thread_serial_num = gdata->thread_serial_number_counter++;
setup_tag_on_root(tag_ptr, class_tag, size,
thread_serial_num,
&object_index, &object_site_index);
trace_index = gdata->system_trace_index;
}
/* Get tls_index and set in_heap_dump, if we find it. */
tls_index = tls_find(thread_serial_num);
if ( tls_index != 0 ) {
tls_set_in_heap_dump(tls_index, 1);
}
trace_serial_num = trace_get_serial_number(trace_index);
/* Issue thread object (must be before thread root) */
io_heap_root_thread_object(object_index,
thread_serial_num, trace_serial_num);
/* Issue thread root */
io_heap_root_thread(object_index, thread_serial_num);
break;
}
case JVMTI_HEAP_ROOT_OTHER: {
setup_tag_on_root(tag_ptr, class_tag, size,
gdata->unknown_thread_serial_num,
&object_index, NULL);
io_heap_root_unknown(object_index);
break;
}
default: {
setup_tag_on_root(tag_ptr, class_tag, size,
gdata->unknown_thread_serial_num,
NULL, NULL);
break;
}
}
return JVMTI_ITERATION_CONTINUE;
}
/* FollowReferences heap_reference_callback */
static jint JNICALL
cbReference(jvmtiHeapReferenceKind reference_kind,
const jvmtiHeapReferenceInfo* reference_info,
jlong class_tag, jlong referrer_class_tag,
jlong size, jlong* tag_ptr,
jlong* referrer_tag_ptr, jint length, void* user_data)
{
ObjectIndex object_index;
/* Only calls to Allocate, Deallocate, RawMonitorEnter & RawMonitorExit
* are allowed here (see the JVMTI Spec).
*/
HPROF_ASSERT(tag_ptr!=NULL);
HPROF_ASSERT(class_tag!=(jlong)0);
if ( class_tag == (jlong)0 ) {
/* We can't do anything with a class_tag==0, just skip it */
return JVMTI_VISIT_OBJECTS;
}
switch ( reference_kind ) {
case JVMTI_HEAP_REFERENCE_FIELD:
case JVMTI_HEAP_REFERENCE_ARRAY_ELEMENT:
case JVMTI_HEAP_REFERENCE_CLASS_LOADER:
case JVMTI_HEAP_REFERENCE_SIGNERS:
case JVMTI_HEAP_REFERENCE_PROTECTION_DOMAIN:
case JVMTI_HEAP_REFERENCE_INTERFACE:
case JVMTI_HEAP_REFERENCE_STATIC_FIELD:
case JVMTI_HEAP_REFERENCE_CONSTANT_POOL:
return objectReference(reference_kind, reference_info,
class_tag, size, tag_ptr, referrer_tag_ptr, length);
case JVMTI_HEAP_REFERENCE_JNI_GLOBAL: {
SerialNumber trace_serial_num;
SerialNumber gref_serial_num;
TraceIndex trace_index;
SiteIndex object_site_index;
setup_tag_on_root(tag_ptr, class_tag, size,
gdata->unknown_thread_serial_num,
&object_index, &object_site_index);
if ( object_site_index != 0 ) {
SiteKey *pkey;
pkey = get_pkey(object_site_index);
trace_index = pkey->trace_index;
} else {
trace_index = gdata->system_trace_index;
}
trace_serial_num = trace_get_serial_number(trace_index);
gref_serial_num = gdata->gref_serial_number_counter++;
io_heap_root_jni_global(object_index, gref_serial_num,
trace_serial_num);
}
break;
case JVMTI_HEAP_REFERENCE_SYSTEM_CLASS: {
char *sig;
SerialNumber class_serial_num;
SiteIndex object_site_index;
setup_tag_on_root(tag_ptr, class_tag, size,
gdata->unknown_thread_serial_num,
&object_index, &object_site_index);
sig = "Unknown";
class_serial_num = 0;
if ( object_site_index != 0 ) {
SiteKey *pkey;
pkey = get_pkey(object_site_index);
sig = string_get(class_get_signature(pkey->cnum));
class_serial_num = class_get_serial_number(pkey->cnum);
}
io_heap_root_system_class(object_index, sig, class_serial_num);
}
break;
case JVMTI_HEAP_REFERENCE_MONITOR:
setup_tag_on_root(tag_ptr, class_tag, size,
gdata->unknown_thread_serial_num,
&object_index, NULL);
io_heap_root_monitor(object_index);
break;
case JVMTI_HEAP_REFERENCE_STACK_LOCAL: {
SerialNumber thread_serial_num;
jlong thread_tag;
thread_tag = reference_info->stack_local.thread_tag;
localReference(tag_ptr, class_tag, thread_tag, size,
&object_index, &thread_serial_num);
io_heap_root_java_frame(object_index, thread_serial_num,
reference_info->stack_local.depth);
}
break;
case JVMTI_HEAP_REFERENCE_JNI_LOCAL: {
SerialNumber thread_serial_num;
jlong thread_tag;
thread_tag = reference_info->jni_local.thread_tag;
localReference(tag_ptr, class_tag, thread_tag, size,
&object_index, &thread_serial_num);
io_heap_root_jni_local(object_index, thread_serial_num,
reference_info->jni_local.depth);
}
break;
case JVMTI_HEAP_REFERENCE_THREAD: {
SerialNumber thread_serial_num;
SerialNumber trace_serial_num;
TraceIndex trace_index;
SiteIndex object_site_index;
TlsIndex tls_index;
/* It is assumed that tag_ptr is referring to a
* java.lang.Thread object here.
*/
if ( (*tag_ptr) != (jlong)0 ) {
setup_tag_on_root(tag_ptr, class_tag, size, 0,
&object_index, &object_site_index);
trace_index = site_get_trace_index(object_site_index);
/* Hopefully the ThreadStart event put this thread's
* correct serial number on it's object.
*/
thread_serial_num = object_get_thread_serial_number(object_index);
} else {
/* Rare situation that a Thread object is not tagged.
* Create special unique thread serial number in this
* case, probably means we never saw a thread start
* or thread end, or even an allocation of the thread
* object.
*/
thread_serial_num = gdata->thread_serial_number_counter++;
setup_tag_on_root(tag_ptr, class_tag, size,
thread_serial_num,
&object_index, &object_site_index);
trace_index = gdata->system_trace_index;
}
/* Get tls_index and set in_heap_dump, if we find it. */
tls_index = tls_find(thread_serial_num);
if ( tls_index != 0 ) {
tls_set_in_heap_dump(tls_index, 1);
}
trace_serial_num = trace_get_serial_number(trace_index);
/* Issue thread object (must be before thread root) */
io_heap_root_thread_object(object_index,
thread_serial_num, trace_serial_num);
/* Issue thread root */
io_heap_root_thread(object_index, thread_serial_num);
}
break;
case JVMTI_HEAP_REFERENCE_OTHER:
setup_tag_on_root(tag_ptr, class_tag, size,
gdata->unknown_thread_serial_num,
&object_index, NULL);
io_heap_root_unknown(object_index);
break;
default:
/* Ignore anything else */
break;
}
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);
}
}
/* Walk all references for an ObjectIndex and construct the hprof INST dump. */
static void
dump_instance(JNIEnv *env, ObjectIndex object_index, RefIndex list)
{
SiteIndex site_index;
SerialNumber trace_serial_num;
RefIndex index;
ObjectIndex class_index;
jlong size;
ClassIndex cnum;
char *sig;
jint num_elements;
jvalue *values;
FieldInfo *fields;
jvalue *fvalues;
jint n_fields;
ObjectKind kind;
TraceIndex trace_index;
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);
size = (jlong)object_get_size(object_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));
class_index = class_get_object_index(cnum);
values = NULL;
num_elements = 0;
n_fields = 0;
fields = NULL;
fvalues = NULL;
index = list;
skip_fields = JNI_TRUE;
if ( sig[0] != JVM_SIGNATURE_ARRAY ) {
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));
}
}
}
while ( index != 0 ) {
ObjectIndex field_object_index;
RefInfo *info;
info = get_info(index);
/* Process reference objects, many not used right now. */
switch ( info->kind ) {
case JVMTI_REFERENCE_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) {
/* 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_ARRAY_ELEMENT:
/* Array element index is referrer_index in referrer_tag */
if ( num_elements <= info->element_index ) {
int nbytes;
if ( values == NULL ) {
num_elements = info->element_index + 1;
nbytes = num_elements*(int)sizeof(jvalue);
values = (jvalue*)HPROF_MALLOC(nbytes);
(void)memset(values, 0, nbytes);
} else {
void *new_values;
int new_size;
int obytes;
obytes = num_elements*(int)sizeof(jvalue);
new_size = info->element_index + 1;
nbytes = new_size*(int)sizeof(jvalue);
new_values = (jvalue*)HPROF_MALLOC(nbytes);
(void)memcpy(new_values, values, obytes);
(void)memset(((char*)new_values)+obytes, 0,
nbytes-obytes);
HPROF_FREE(values);
num_elements = new_size;
values = new_values;
}
}
field_object_index = tag_to_object_index(info->object_tag);
HPROF_ASSERT(values[info->element_index].i==0);
values[info->element_index].i = field_object_index;
break;
default:
break;
}
index = info->next;
}
if ( sig[0] == JVM_SIGNATURE_ARRAY ) {
/* FIXUP: Fill primitive arrays? If requested? */
switch ( sig[1] ) {
case JVM_SIGNATURE_CLASS:
case JVM_SIGNATURE_ENUM:
case JVM_SIGNATURE_ARRAY:
io_heap_object_array(object_index, trace_serial_num,
(jint)size, num_elements, class_index, values, sig);
break;
case JVM_SIGNATURE_BYTE:
case JVM_SIGNATURE_BOOLEAN:
io_heap_prim_array(object_index, (jint)size,
trace_serial_num, num_elements, sig, values);
break;
case JVM_SIGNATURE_CHAR:
case JVM_SIGNATURE_SHORT:
io_heap_prim_array(object_index, (jint)size,
trace_serial_num, num_elements, sig, values);
break;
case JVM_SIGNATURE_INT:
case JVM_SIGNATURE_FLOAT:
io_heap_prim_array(object_index, (jint)size,
trace_serial_num, num_elements, sig, values);
break;
case JVM_SIGNATURE_DOUBLE:
case JVM_SIGNATURE_LONG:
io_heap_prim_array(object_index, (jint)size,
trace_serial_num, num_elements, sig, values);
break;
default:
HPROF_ASSERT(0);
break;
}
} else {
/* FIXUP: Fill rest of primitive fields? If requested? */
io_heap_instance_dump(cnum, object_index, trace_serial_num,
class_index, (jint)size, sig, fields, fvalues, n_fields);
}
if ( values != NULL ) {
HPROF_FREE(values);
}
if ( fvalues != NULL ) {
HPROF_FREE(fvalues);
}
}