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-rw-r--r--src/share/vm/ci/ciReplay.cpp942
1 files changed, 942 insertions, 0 deletions
diff --git a/src/share/vm/ci/ciReplay.cpp b/src/share/vm/ci/ciReplay.cpp
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+++ b/src/share/vm/ci/ciReplay.cpp
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+/* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "ci/ciMethodData.hpp"
+#include "ci/ciReplay.hpp"
+#include "ci/ciUtilities.hpp"
+#include "compiler/compileBroker.hpp"
+#include "memory/allocation.inline.hpp"
+#include "memory/oopFactory.hpp"
+#include "memory/resourceArea.hpp"
+#include "utilities/copy.hpp"
+
+#ifdef ASSERT
+
+// ciReplay
+
+typedef struct _ciMethodDataRecord {
+ const char* klass;
+ const char* method;
+ const char* signature;
+ int state;
+ int current_mileage;
+ intptr_t* data;
+ int data_length;
+ char* orig_data;
+ int orig_data_length;
+ int oops_length;
+ jobject* oops_handles;
+ int* oops_offsets;
+} ciMethodDataRecord;
+
+typedef struct _ciMethodRecord {
+ const char* klass;
+ const char* method;
+ const char* signature;
+ int instructions_size;
+ int interpreter_invocation_count;
+ int interpreter_throwout_count;
+ int invocation_counter;
+ int backedge_counter;
+} ciMethodRecord;
+
+class CompileReplay;
+static CompileReplay* replay_state;
+
+class CompileReplay : public StackObj {
+ private:
+ FILE* stream;
+ Thread* thread;
+ Handle protection_domain;
+ Handle loader;
+
+ GrowableArray<ciMethodRecord*> ci_method_records;
+ GrowableArray<ciMethodDataRecord*> ci_method_data_records;
+
+ const char* _error_message;
+
+ char* bufptr;
+ char* buffer;
+ int buffer_length;
+ int buffer_end;
+ int line_no;
+
+ public:
+ CompileReplay(const char* filename, TRAPS) {
+ thread = THREAD;
+ loader = Handle(thread, SystemDictionary::java_system_loader());
+ stream = fopen(filename, "rt");
+ if (stream == NULL) {
+ fprintf(stderr, "Can't open replay file %s\n", filename);
+ }
+ buffer_length = 32;
+ buffer = NEW_RESOURCE_ARRAY(char, buffer_length);
+ _error_message = NULL;
+
+ test();
+ }
+
+ ~CompileReplay() {
+ if (stream != NULL) fclose(stream);
+ }
+
+ void test() {
+ strcpy(buffer, "1 2 foo 4 bar 0x9 \"this is it\"");
+ bufptr = buffer;
+ assert(parse_int("test") == 1, "what");
+ assert(parse_int("test") == 2, "what");
+ assert(strcmp(parse_string(), "foo") == 0, "what");
+ assert(parse_int("test") == 4, "what");
+ assert(strcmp(parse_string(), "bar") == 0, "what");
+ assert(parse_intptr_t("test") == 9, "what");
+ assert(strcmp(parse_quoted_string(), "this is it") == 0, "what");
+ }
+
+ bool had_error() {
+ return _error_message != NULL || thread->has_pending_exception();
+ }
+
+ bool can_replay() {
+ return !(stream == NULL || had_error());
+ }
+
+ void report_error(const char* msg) {
+ _error_message = msg;
+ // Restore the buffer contents for error reporting
+ for (int i = 0; i < buffer_end; i++) {
+ if (buffer[i] == '\0') buffer[i] = ' ';
+ }
+ }
+
+ int parse_int(const char* label) {
+ if (had_error()) {
+ return 0;
+ }
+
+ int v = 0;
+ int read;
+ if (sscanf(bufptr, "%i%n", &v, &read) != 1) {
+ report_error(label);
+ } else {
+ bufptr += read;
+ }
+ return v;
+ }
+
+ intptr_t parse_intptr_t(const char* label) {
+ if (had_error()) {
+ return 0;
+ }
+
+ intptr_t v = 0;
+ int read;
+ if (sscanf(bufptr, INTPTR_FORMAT "%n", &v, &read) != 1) {
+ report_error(label);
+ } else {
+ bufptr += read;
+ }
+ return v;
+ }
+
+ void skip_ws() {
+ // Skip any leading whitespace
+ while (*bufptr == ' ' || *bufptr == '\t') {
+ bufptr++;
+ }
+ }
+
+
+ char* scan_and_terminate(char delim) {
+ char* str = bufptr;
+ while (*bufptr != delim && *bufptr != '\0') {
+ bufptr++;
+ }
+ if (*bufptr != '\0') {
+ *bufptr++ = '\0';
+ }
+ if (bufptr == str) {
+ // nothing here
+ return NULL;
+ }
+ return str;
+ }
+
+ char* parse_string() {
+ if (had_error()) return NULL;
+
+ skip_ws();
+ return scan_and_terminate(' ');
+ }
+
+ char* parse_quoted_string() {
+ if (had_error()) return NULL;
+
+ skip_ws();
+
+ if (*bufptr == '"') {
+ bufptr++;
+ return scan_and_terminate('"');
+ } else {
+ return scan_and_terminate(' ');
+ }
+ }
+
+ const char* parse_escaped_string() {
+ char* result = parse_quoted_string();
+ if (result != NULL) {
+ unescape_string(result);
+ }
+ return result;
+ }
+
+ // Look for the tag 'tag' followed by an
+ bool parse_tag_and_count(const char* tag, int& length) {
+ const char* t = parse_string();
+ if (t == NULL) {
+ return false;
+ }
+
+ if (strcmp(tag, t) != 0) {
+ report_error(tag);
+ return false;
+ }
+ length = parse_int("parse_tag_and_count");
+ return !had_error();
+ }
+
+ // Parse a sequence of raw data encoded as bytes and return the
+ // resulting data.
+ char* parse_data(const char* tag, int& length) {
+ if (!parse_tag_and_count(tag, length)) {
+ return NULL;
+ }
+
+ char * result = NEW_RESOURCE_ARRAY(char, length);
+ for (int i = 0; i < length; i++) {
+ int val = parse_int("data");
+ result[i] = val;
+ }
+ return result;
+ }
+
+ // Parse a standard chunk of data emitted as:
+ // 'tag' <length> # # ...
+ // Where each # is an intptr_t item
+ intptr_t* parse_intptr_data(const char* tag, int& length) {
+ if (!parse_tag_and_count(tag, length)) {
+ return NULL;
+ }
+
+ intptr_t* result = NEW_RESOURCE_ARRAY(intptr_t, length);
+ for (int i = 0; i < length; i++) {
+ skip_ws();
+ intptr_t val = parse_intptr_t("data");
+ result[i] = val;
+ }
+ return result;
+ }
+
+ // Parse a possibly quoted version of a symbol into a symbolOop
+ Symbol* parse_symbol(TRAPS) {
+ const char* str = parse_escaped_string();
+ if (str != NULL) {
+ Symbol* sym = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL);
+ return sym;
+ }
+ return NULL;
+ }
+
+ // Parse a valid klass name and look it up
+ Klass* parse_klass(TRAPS) {
+ const char* str = parse_escaped_string();
+ Symbol* klass_name = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL);
+ if (klass_name != NULL) {
+ Klass* k = SystemDictionary::resolve_or_fail(klass_name, loader, protection_domain, true, THREAD);
+ if (HAS_PENDING_EXCEPTION) {
+ oop throwable = PENDING_EXCEPTION;
+ java_lang_Throwable::print(throwable, tty);
+ tty->cr();
+ report_error(str);
+ return NULL;
+ }
+ return k;
+ }
+ return NULL;
+ }
+
+ // Lookup a klass
+ Klass* resolve_klass(const char* klass, TRAPS) {
+ Symbol* klass_name = SymbolTable::lookup(klass, (int)strlen(klass), CHECK_NULL);
+ return SystemDictionary::resolve_or_fail(klass_name, loader, protection_domain, true, CHECK_NULL);
+ }
+
+ // Parse the standard tuple of <klass> <name> <signature>
+ Method* parse_method(TRAPS) {
+ InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK_NULL);
+ Symbol* method_name = parse_symbol(CHECK_NULL);
+ Symbol* method_signature = parse_symbol(CHECK_NULL);
+ Method* m = k->find_method(method_name, method_signature);
+ if (m == NULL) {
+ report_error("can't find method");
+ }
+ return m;
+ }
+
+ // Process each line of the replay file executing each command until
+ // the file ends.
+ void process(TRAPS) {
+ line_no = 1;
+ int pos = 0;
+ int c = getc(stream);
+ while(c != EOF) {
+ if (pos + 1 >= buffer_length) {
+ int newl = buffer_length * 2;
+ char* newb = NEW_RESOURCE_ARRAY(char, newl);
+ memcpy(newb, buffer, pos);
+ buffer = newb;
+ buffer_length = newl;
+ }
+ if (c == '\n') {
+ // null terminate it, reset the pointer and process the line
+ buffer[pos] = '\0';
+ buffer_end = pos++;
+ bufptr = buffer;
+ process_command(CHECK);
+ if (had_error()) {
+ tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message);
+ tty->print_cr("%s", buffer);
+ assert(false, "error");
+ return;
+ }
+ pos = 0;
+ buffer_end = 0;
+ line_no++;
+ } else if (c == '\r') {
+ // skip LF
+ } else {
+ buffer[pos++] = c;
+ }
+ c = getc(stream);
+ }
+ }
+
+ void process_command(TRAPS) {
+ char* cmd = parse_string();
+ if (cmd == NULL) {
+ return;
+ }
+ if (strcmp("#", cmd) == 0) {
+ // ignore
+ } else if (strcmp("compile", cmd) == 0) {
+ process_compile(CHECK);
+ } else if (strcmp("ciMethod", cmd) == 0) {
+ process_ciMethod(CHECK);
+ } else if (strcmp("ciMethodData", cmd) == 0) {
+ process_ciMethodData(CHECK);
+ } else if (strcmp("staticfield", cmd) == 0) {
+ process_staticfield(CHECK);
+ } else if (strcmp("ciInstanceKlass", cmd) == 0) {
+ process_ciInstanceKlass(CHECK);
+ } else if (strcmp("instanceKlass", cmd) == 0) {
+ process_instanceKlass(CHECK);
+#if INCLUDE_JVMTI
+ } else if (strcmp("JvmtiExport", cmd) == 0) {
+ process_JvmtiExport(CHECK);
+#endif // INCLUDE_JVMTI
+ } else {
+ report_error("unknown command");
+ }
+ }
+
+ // compile <klass> <name> <signature> <entry_bci>
+ void process_compile(TRAPS) {
+ // methodHandle method;
+ Method* method = parse_method(CHECK);
+ int entry_bci = parse_int("entry_bci");
+ Klass* k = method->method_holder();
+ ((InstanceKlass*)k)->initialize(THREAD);
+ if (HAS_PENDING_EXCEPTION) {
+ oop throwable = PENDING_EXCEPTION;
+ java_lang_Throwable::print(throwable, tty);
+ tty->cr();
+ if (ReplayIgnoreInitErrors) {
+ CLEAR_PENDING_EXCEPTION;
+ ((InstanceKlass*)k)->set_init_state(InstanceKlass::fully_initialized);
+ } else {
+ return;
+ }
+ }
+ // Make sure the existence of a prior compile doesn't stop this one
+ nmethod* nm = (entry_bci != InvocationEntryBci) ? method->lookup_osr_nmethod_for(entry_bci, CompLevel_full_optimization, true) : method->code();
+ if (nm != NULL) {
+ nm->make_not_entrant();
+ }
+ replay_state = this;
+ CompileBroker::compile_method(method, entry_bci, CompLevel_full_optimization,
+ methodHandle(), 0, "replay", THREAD);
+ replay_state = NULL;
+ reset();
+ }
+
+ // ciMethod <klass> <name> <signature> <invocation_counter> <backedge_counter> <interpreter_invocation_count> <interpreter_throwout_count> <instructions_size>
+ //
+ //
+ void process_ciMethod(TRAPS) {
+ Method* method = parse_method(CHECK);
+ ciMethodRecord* rec = new_ciMethod(method);
+ rec->invocation_counter = parse_int("invocation_counter");
+ rec->backedge_counter = parse_int("backedge_counter");
+ rec->interpreter_invocation_count = parse_int("interpreter_invocation_count");
+ rec->interpreter_throwout_count = parse_int("interpreter_throwout_count");
+ rec->instructions_size = parse_int("instructions_size");
+ }
+
+ // ciMethodData <klass> <name> <signature> <state> <current mileage> orig <length> # # ... data <length> # # ... oops <length>
+ void process_ciMethodData(TRAPS) {
+ Method* method = parse_method(CHECK);
+ /* jsut copied from Method, to build interpret data*/
+ if (InstanceRefKlass::owns_pending_list_lock((JavaThread*)THREAD)) {
+ return;
+ }
+ // methodOopDesc::build_interpreter_method_data(method, CHECK);
+ {
+ // Grab a lock here to prevent multiple
+ // MethodData*s from being created.
+ MutexLocker ml(MethodData_lock, THREAD);
+ if (method->method_data() == NULL) {
+ ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
+ MethodData* method_data = MethodData::allocate(loader_data, method, CHECK);
+ method->set_method_data(method_data);
+ }
+ }
+
+ // collect and record all the needed information for later
+ ciMethodDataRecord* rec = new_ciMethodData(method);
+ rec->state = parse_int("state");
+ rec->current_mileage = parse_int("current_mileage");
+
+ rec->orig_data = parse_data("orig", rec->orig_data_length);
+ if (rec->orig_data == NULL) {
+ return;
+ }
+ rec->data = parse_intptr_data("data", rec->data_length);
+ if (rec->data == NULL) {
+ return;
+ }
+ if (!parse_tag_and_count("oops", rec->oops_length)) {
+ return;
+ }
+ rec->oops_handles = NEW_RESOURCE_ARRAY(jobject, rec->oops_length);
+ rec->oops_offsets = NEW_RESOURCE_ARRAY(int, rec->oops_length);
+ for (int i = 0; i < rec->oops_length; i++) {
+ int offset = parse_int("offset");
+ if (had_error()) {
+ return;
+ }
+ Klass* k = parse_klass(CHECK);
+ rec->oops_offsets[i] = offset;
+ rec->oops_handles[i] = (jobject)(new KlassHandle(THREAD, k));
+ }
+ }
+
+ // instanceKlass <name>
+ //
+ // Loads and initializes the klass 'name'. This can be used to
+ // create particular class loading environments
+ void process_instanceKlass(TRAPS) {
+ // just load the referenced class
+ Klass* k = parse_klass(CHECK);
+ }
+
+ // ciInstanceKlass <name> <is_linked> <is_initialized> <length> tag # # # ...
+ //
+ // Load the klass 'name' and link or initialize it. Verify that the
+ // constant pool is the same length as 'length' and make sure the
+ // constant pool tags are in the same state.
+ void process_ciInstanceKlass(TRAPS) {
+ InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK);
+ int is_linked = parse_int("is_linked");
+ int is_initialized = parse_int("is_initialized");
+ int length = parse_int("length");
+ if (is_initialized) {
+ k->initialize(THREAD);
+ if (HAS_PENDING_EXCEPTION) {
+ oop throwable = PENDING_EXCEPTION;
+ java_lang_Throwable::print(throwable, tty);
+ tty->cr();
+ if (ReplayIgnoreInitErrors) {
+ CLEAR_PENDING_EXCEPTION;
+ k->set_init_state(InstanceKlass::fully_initialized);
+ } else {
+ return;
+ }
+ }
+ } else if (is_linked) {
+ k->link_class(CHECK);
+ }
+ ConstantPool* cp = k->constants();
+ if (length != cp->length()) {
+ report_error("constant pool length mismatch: wrong class files?");
+ return;
+ }
+
+ int parsed_two_word = 0;
+ for (int i = 1; i < length; i++) {
+ int tag = parse_int("tag");
+ if (had_error()) {
+ return;
+ }
+ switch (cp->tag_at(i).value()) {
+ case JVM_CONSTANT_UnresolvedClass: {
+ if (tag == JVM_CONSTANT_Class) {
+ tty->print_cr("Resolving klass %s at %d", cp->unresolved_klass_at(i)->as_utf8(), i);
+ Klass* k = cp->klass_at(i, CHECK);
+ }
+ break;
+ }
+ case JVM_CONSTANT_Long:
+ case JVM_CONSTANT_Double:
+ parsed_two_word = i + 1;
+
+ case JVM_CONSTANT_ClassIndex:
+ case JVM_CONSTANT_StringIndex:
+ case JVM_CONSTANT_String:
+ case JVM_CONSTANT_UnresolvedClassInError:
+ case JVM_CONSTANT_Fieldref:
+ case JVM_CONSTANT_Methodref:
+ case JVM_CONSTANT_InterfaceMethodref:
+ case JVM_CONSTANT_NameAndType:
+ case JVM_CONSTANT_Utf8:
+ case JVM_CONSTANT_Integer:
+ case JVM_CONSTANT_Float:
+ if (tag != cp->tag_at(i).value()) {
+ report_error("tag mismatch: wrong class files?");
+ return;
+ }
+ break;
+
+ case JVM_CONSTANT_Class:
+ if (tag == JVM_CONSTANT_Class) {
+ } else if (tag == JVM_CONSTANT_UnresolvedClass) {
+ tty->print_cr("Warning: entry was unresolved in the replay data");
+ } else {
+ report_error("Unexpected tag");
+ return;
+ }
+ break;
+
+ case 0:
+ if (parsed_two_word == i) continue;
+
+ default:
+ ShouldNotReachHere();
+ break;
+ }
+
+ }
+ }
+
+ // Initialize a class and fill in the value for a static field.
+ // This is useful when the compile was dependent on the value of
+ // static fields but it's impossible to properly rerun the static
+ // initiailizer.
+ void process_staticfield(TRAPS) {
+ InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK);
+
+ if (ReplaySuppressInitializers == 0 ||
+ ReplaySuppressInitializers == 2 && k->class_loader() == NULL) {
+ return;
+ }
+
+ assert(k->is_initialized(), "must be");
+
+ const char* field_name = parse_escaped_string();;
+ const char* field_signature = parse_string();
+ fieldDescriptor fd;
+ Symbol* name = SymbolTable::lookup(field_name, (int)strlen(field_name), CHECK);
+ Symbol* sig = SymbolTable::lookup(field_signature, (int)strlen(field_signature), CHECK);
+ if (!k->find_local_field(name, sig, &fd) ||
+ !fd.is_static() ||
+ fd.has_initial_value()) {
+ report_error(field_name);
+ return;
+ }
+
+ oop java_mirror = k->java_mirror();
+ if (field_signature[0] == '[') {
+ int length = parse_int("array length");
+ oop value = NULL;
+
+ if (field_signature[1] == '[') {
+ // multi dimensional array
+ ArrayKlass* kelem = (ArrayKlass *)parse_klass(CHECK);
+ int rank = 0;
+ while (field_signature[rank] == '[') {
+ rank++;
+ }
+ int* dims = NEW_RESOURCE_ARRAY(int, rank);
+ dims[0] = length;
+ for (int i = 1; i < rank; i++) {
+ dims[i] = 1; // These aren't relevant to the compiler
+ }
+ value = kelem->multi_allocate(rank, dims, CHECK);
+ } else {
+ if (strcmp(field_signature, "[B") == 0) {
+ value = oopFactory::new_byteArray(length, CHECK);
+ } else if (strcmp(field_signature, "[Z") == 0) {
+ value = oopFactory::new_boolArray(length, CHECK);
+ } else if (strcmp(field_signature, "[C") == 0) {
+ value = oopFactory::new_charArray(length, CHECK);
+ } else if (strcmp(field_signature, "[S") == 0) {
+ value = oopFactory::new_shortArray(length, CHECK);
+ } else if (strcmp(field_signature, "[F") == 0) {
+ value = oopFactory::new_singleArray(length, CHECK);
+ } else if (strcmp(field_signature, "[D") == 0) {
+ value = oopFactory::new_doubleArray(length, CHECK);
+ } else if (strcmp(field_signature, "[I") == 0) {
+ value = oopFactory::new_intArray(length, CHECK);
+ } else if (strcmp(field_signature, "[J") == 0) {
+ value = oopFactory::new_longArray(length, CHECK);
+ } else if (field_signature[0] == '[' && field_signature[1] == 'L') {
+ KlassHandle kelem = resolve_klass(field_signature + 1, CHECK);
+ value = oopFactory::new_objArray(kelem(), length, CHECK);
+ } else {
+ report_error("unhandled array staticfield");
+ }
+ }
+ java_mirror->obj_field_put(fd.offset(), value);
+ } else {
+ const char* string_value = parse_escaped_string();
+ if (strcmp(field_signature, "I") == 0) {
+ int value = atoi(string_value);
+ java_mirror->int_field_put(fd.offset(), value);
+ } else if (strcmp(field_signature, "B") == 0) {
+ int value = atoi(string_value);
+ java_mirror->byte_field_put(fd.offset(), value);
+ } else if (strcmp(field_signature, "C") == 0) {
+ int value = atoi(string_value);
+ java_mirror->char_field_put(fd.offset(), value);
+ } else if (strcmp(field_signature, "S") == 0) {
+ int value = atoi(string_value);
+ java_mirror->short_field_put(fd.offset(), value);
+ } else if (strcmp(field_signature, "Z") == 0) {
+ int value = atol(string_value);
+ java_mirror->bool_field_put(fd.offset(), value);
+ } else if (strcmp(field_signature, "J") == 0) {
+ jlong value;
+ if (sscanf(string_value, INT64_FORMAT, &value) != 1) {
+ fprintf(stderr, "Error parsing long: %s\n", string_value);
+ return;
+ }
+ java_mirror->long_field_put(fd.offset(), value);
+ } else if (strcmp(field_signature, "F") == 0) {
+ float value = atof(string_value);
+ java_mirror->float_field_put(fd.offset(), value);
+ } else if (strcmp(field_signature, "D") == 0) {
+ double value = atof(string_value);
+ java_mirror->double_field_put(fd.offset(), value);
+ } else if (strcmp(field_signature, "Ljava/lang/String;") == 0) {
+ Handle value = java_lang_String::create_from_str(string_value, CHECK);
+ java_mirror->obj_field_put(fd.offset(), value());
+ } else if (field_signature[0] == 'L') {
+ Symbol* klass_name = SymbolTable::lookup(field_signature, (int)strlen(field_signature), CHECK);
+ KlassHandle kelem = resolve_klass(field_signature, CHECK);
+ oop value = ((InstanceKlass*)kelem())->allocate_instance(CHECK);
+ java_mirror->obj_field_put(fd.offset(), value);
+ } else {
+ report_error("unhandled staticfield");
+ }
+ }
+ }
+
+#if INCLUDE_JVMTI
+ void process_JvmtiExport(TRAPS) {
+ const char* field = parse_string();
+ bool value = parse_int("JvmtiExport flag") != 0;
+ if (strcmp(field, "can_access_local_variables") == 0) {
+ JvmtiExport::set_can_access_local_variables(value);
+ } else if (strcmp(field, "can_hotswap_or_post_breakpoint") == 0) {
+ JvmtiExport::set_can_hotswap_or_post_breakpoint(value);
+ } else if (strcmp(field, "can_post_on_exceptions") == 0) {
+ JvmtiExport::set_can_post_on_exceptions(value);
+ } else {
+ report_error("Unrecognized JvmtiExport directive");
+ }
+ }
+#endif // INCLUDE_JVMTI
+
+ // Create and initialize a record for a ciMethod
+ ciMethodRecord* new_ciMethod(Method* method) {
+ ciMethodRecord* rec = NEW_RESOURCE_OBJ(ciMethodRecord);
+ rec->klass = method->method_holder()->name()->as_utf8();
+ rec->method = method->name()->as_utf8();
+ rec->signature = method->signature()->as_utf8();
+ ci_method_records.append(rec);
+ return rec;
+ }
+
+ // Lookup data for a ciMethod
+ ciMethodRecord* find_ciMethodRecord(Method* method) {
+ const char* klass_name = method->method_holder()->name()->as_utf8();
+ const char* method_name = method->name()->as_utf8();
+ const char* signature = method->signature()->as_utf8();
+ for (int i = 0; i < ci_method_records.length(); i++) {
+ ciMethodRecord* rec = ci_method_records.at(i);
+ if (strcmp(rec->klass, klass_name) == 0 &&
+ strcmp(rec->method, method_name) == 0 &&
+ strcmp(rec->signature, signature) == 0) {
+ return rec;
+ }
+ }
+ return NULL;
+ }
+
+ // Create and initialize a record for a ciMethodData
+ ciMethodDataRecord* new_ciMethodData(Method* method) {
+ ciMethodDataRecord* rec = NEW_RESOURCE_OBJ(ciMethodDataRecord);
+ rec->klass = method->method_holder()->name()->as_utf8();
+ rec->method = method->name()->as_utf8();
+ rec->signature = method->signature()->as_utf8();
+ ci_method_data_records.append(rec);
+ return rec;
+ }
+
+ // Lookup data for a ciMethodData
+ ciMethodDataRecord* find_ciMethodDataRecord(Method* method) {
+ const char* klass_name = method->method_holder()->name()->as_utf8();
+ const char* method_name = method->name()->as_utf8();
+ const char* signature = method->signature()->as_utf8();
+ for (int i = 0; i < ci_method_data_records.length(); i++) {
+ ciMethodDataRecord* rec = ci_method_data_records.at(i);
+ if (strcmp(rec->klass, klass_name) == 0 &&
+ strcmp(rec->method, method_name) == 0 &&
+ strcmp(rec->signature, signature) == 0) {
+ return rec;
+ }
+ }
+ return NULL;
+ }
+
+ const char* error_message() {
+ return _error_message;
+ }
+
+ void reset() {
+ _error_message = NULL;
+ ci_method_records.clear();
+ ci_method_data_records.clear();
+ }
+
+ // Take an ascii string contain \u#### escapes and convert it to utf8
+ // in place.
+ static void unescape_string(char* value) {
+ char* from = value;
+ char* to = value;
+ while (*from != '\0') {
+ if (*from != '\\') {
+ *from++ = *to++;
+ } else {
+ switch (from[1]) {
+ case 'u': {
+ from += 2;
+ jchar value=0;
+ for (int i=0; i<4; i++) {
+ char c = *from++;
+ switch (c) {
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ value = (value << 4) + c - '0';
+ break;
+ case 'a': case 'b': case 'c':
+ case 'd': case 'e': case 'f':
+ value = (value << 4) + 10 + c - 'a';
+ break;
+ case 'A': case 'B': case 'C':
+ case 'D': case 'E': case 'F':
+ value = (value << 4) + 10 + c - 'A';
+ break;
+ default:
+ ShouldNotReachHere();
+ }
+ }
+ UNICODE::convert_to_utf8(&value, 1, to);
+ to++;
+ break;
+ }
+ case 't': *to++ = '\t'; from += 2; break;
+ case 'n': *to++ = '\n'; from += 2; break;
+ case 'r': *to++ = '\r'; from += 2; break;
+ case 'f': *to++ = '\f'; from += 2; break;
+ default:
+ ShouldNotReachHere();
+ }
+ }
+ }
+ *from = *to;
+ }
+};
+
+void ciReplay::replay(TRAPS) {
+ int exit_code = replay_impl(THREAD);
+
+ Threads::destroy_vm();
+
+ vm_exit(exit_code);
+}
+
+int ciReplay::replay_impl(TRAPS) {
+ HandleMark hm;
+ ResourceMark rm;
+ // Make sure we don't run with background compilation
+ BackgroundCompilation = false;
+
+ if (ReplaySuppressInitializers > 2) {
+ // ReplaySuppressInitializers > 2 means that we want to allow
+ // normal VM bootstrap but once we get into the replay itself
+ // don't allow any intializers to be run.
+ ReplaySuppressInitializers = 1;
+ }
+
+ // Load and parse the replay data
+ CompileReplay rp(ReplayDataFile, THREAD);
+ int exit_code = 0;
+ if (rp.can_replay()) {
+ rp.process(THREAD);
+ } else {
+ exit_code = 1;
+ return exit_code;
+ }
+
+ if (HAS_PENDING_EXCEPTION) {
+ oop throwable = PENDING_EXCEPTION;
+ CLEAR_PENDING_EXCEPTION;
+ java_lang_Throwable::print(throwable, tty);
+ tty->cr();
+ java_lang_Throwable::print_stack_trace(throwable, tty);
+ tty->cr();
+ exit_code = 2;
+ }
+
+ if (rp.had_error()) {
+ tty->print_cr("Failed on %s", rp.error_message());
+ exit_code = 1;
+ }
+ return exit_code;
+}
+
+
+void ciReplay::initialize(ciMethodData* m) {
+ if (replay_state == NULL) {
+ return;
+ }
+
+ ASSERT_IN_VM;
+ ResourceMark rm;
+
+ Method* method = m->get_MethodData()->method();
+ ciMethodDataRecord* rec = replay_state->find_ciMethodDataRecord(method);
+ if (rec == NULL) {
+ // This indicates some mismatch with the original environment and
+ // the replay environment though it's not always enough to
+ // interfere with reproducing a bug
+ tty->print_cr("Warning: requesting ciMethodData record for method with no data: ");
+ method->print_name(tty);
+ tty->cr();
+ } else {
+ m->_state = rec->state;
+ m->_current_mileage = rec->current_mileage;
+ if (rec->data_length != 0) {
+ assert(m->_data_size == rec->data_length * (int)sizeof(rec->data[0]), "must agree");
+
+ // Write the correct ciObjects back into the profile data
+ ciEnv* env = ciEnv::current();
+ for (int i = 0; i < rec->oops_length; i++) {
+ KlassHandle *h = (KlassHandle *)rec->oops_handles[i];
+ *(ciMetadata**)(rec->data + rec->oops_offsets[i]) =
+ env->get_metadata((*h)());
+ }
+ // Copy the updated profile data into place as intptr_ts
+#ifdef _LP64
+ Copy::conjoint_jlongs_atomic((jlong *)rec->data, (jlong *)m->_data, rec->data_length);
+#else
+ Copy::conjoint_jints_atomic((jint *)rec->data, (jint *)m->_data, rec->data_length);
+#endif
+ }
+
+ // copy in the original header
+ Copy::conjoint_jbytes(rec->orig_data, (char*)&m->_orig, rec->orig_data_length);
+ }
+}
+
+
+bool ciReplay::should_not_inline(ciMethod* method) {
+ if (replay_state == NULL) {
+ return false;
+ }
+
+ VM_ENTRY_MARK;
+ // ciMethod without a record shouldn't be inlined.
+ return replay_state->find_ciMethodRecord(method->get_Method()) == NULL;
+}
+
+
+void ciReplay::initialize(ciMethod* m) {
+ if (replay_state == NULL) {
+ return;
+ }
+
+ ASSERT_IN_VM;
+ ResourceMark rm;
+
+ Method* method = m->get_Method();
+ ciMethodRecord* rec = replay_state->find_ciMethodRecord(method);
+ if (rec == NULL) {
+ // This indicates some mismatch with the original environment and
+ // the replay environment though it's not always enough to
+ // interfere with reproducing a bug
+ tty->print_cr("Warning: requesting ciMethod record for method with no data: ");
+ method->print_name(tty);
+ tty->cr();
+ } else {
+ // m->_instructions_size = rec->instructions_size;
+ m->_instructions_size = -1;
+ m->_interpreter_invocation_count = rec->interpreter_invocation_count;
+ m->_interpreter_throwout_count = rec->interpreter_throwout_count;
+ method->invocation_counter()->_counter = rec->invocation_counter;
+ method->backedge_counter()->_counter = rec->backedge_counter;
+ }
+}
+
+bool ciReplay::is_loaded(Method* method) {
+ if (replay_state == NULL) {
+ return true;
+ }
+
+ ASSERT_IN_VM;
+ ResourceMark rm;
+
+ ciMethodRecord* rec = replay_state->find_ciMethodRecord(method);
+ return rec != NULL;
+}
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-06 19:55:02 +0000