--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/ppc/frame_ppc.cpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,249 @@
+/*
+ * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2017 SAP SE. 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 "interpreter/interpreter.hpp"
+#include "memory/resourceArea.hpp"
+#include "oops/markOop.hpp"
+#include "oops/method.hpp"
+#include "oops/oop.inline.hpp"
+#include "runtime/frame.inline.hpp"
+#include "runtime/handles.inline.hpp"
+#include "runtime/javaCalls.hpp"
+#include "runtime/monitorChunk.hpp"
+#include "runtime/signature.hpp"
+#include "runtime/stubCodeGenerator.hpp"
+#include "runtime/stubRoutines.hpp"
+#ifdef COMPILER1
+#include "c1/c1_Runtime1.hpp"
+#include "runtime/vframeArray.hpp"
+#endif
+
+#ifdef ASSERT
+void RegisterMap::check_location_valid() {
+}
+#endif // ASSERT
+
+bool frame::safe_for_sender(JavaThread *thread) {
+ bool safe = false;
+ address cursp = (address)sp();
+ address curfp = (address)fp();
+ if ((cursp != NULL && curfp != NULL &&
+ (cursp <= thread->stack_base() && cursp >= thread->stack_base() - thread->stack_size())) &&
+ (curfp <= thread->stack_base() && curfp >= thread->stack_base() - thread->stack_size())) {
+ safe = true;
+ }
+ return safe;
+}
+
+bool frame::is_interpreted_frame() const {
+ return Interpreter::contains(pc());
+}
+
+frame frame::sender_for_entry_frame(RegisterMap *map) const {
+ assert(map != NULL, "map must be set");
+ // Java frame called from C; skip all C frames and return top C
+ // frame of that chunk as the sender.
+ JavaFrameAnchor* jfa = entry_frame_call_wrapper()->anchor();
+ assert(!entry_frame_is_first(), "next Java fp must be non zero");
+ assert(jfa->last_Java_sp() > _sp, "must be above this frame on stack");
+ map->clear();
+ assert(map->include_argument_oops(), "should be set by clear");
+
+ if (jfa->last_Java_pc() != NULL) {
+ frame fr(jfa->last_Java_sp(), jfa->last_Java_pc());
+ return fr;
+ }
+ // Last_java_pc is not set, if we come here from compiled code. The
+ // constructor retrieves the PC from the stack.
+ frame fr(jfa->last_Java_sp());
+ return fr;
+}
+
+frame frame::sender_for_interpreter_frame(RegisterMap *map) const {
+ // Pass callers initial_caller_sp as unextended_sp.
+ return frame(sender_sp(), sender_pc(), (intptr_t*)get_ijava_state()->sender_sp);
+}
+
+frame frame::sender_for_compiled_frame(RegisterMap *map) const {
+ assert(map != NULL, "map must be set");
+
+ // Frame owned by compiler.
+ address pc = *compiled_sender_pc_addr(_cb);
+ frame caller(compiled_sender_sp(_cb), pc);
+
+ // Now adjust the map.
+
+ // Get the rest.
+ if (map->update_map()) {
+ // Tell GC to use argument oopmaps for some runtime stubs that need it.
+ map->set_include_argument_oops(_cb->caller_must_gc_arguments(map->thread()));
+ if (_cb->oop_maps() != NULL) {
+ OopMapSet::update_register_map(this, map);
+ }
+ }
+
+ return caller;
+}
+
+intptr_t* frame::compiled_sender_sp(CodeBlob* cb) const {
+ return sender_sp();
+}
+
+address* frame::compiled_sender_pc_addr(CodeBlob* cb) const {
+ return sender_pc_addr();
+}
+
+frame frame::sender(RegisterMap* map) const {
+ // Default is we do have to follow them. The sender_for_xxx will
+ // update it accordingly.
+ map->set_include_argument_oops(false);
+
+ if (is_entry_frame()) return sender_for_entry_frame(map);
+ if (is_interpreted_frame()) return sender_for_interpreter_frame(map);
+ assert(_cb == CodeCache::find_blob(pc()),"Must be the same");
+
+ if (_cb != NULL) {
+ return sender_for_compiled_frame(map);
+ }
+ // Must be native-compiled frame, i.e. the marshaling code for native
+ // methods that exists in the core system.
+ return frame(sender_sp(), sender_pc());
+}
+
+void frame::patch_pc(Thread* thread, address pc) {
+ if (TracePcPatching) {
+ tty->print_cr("patch_pc at address " PTR_FORMAT " [" PTR_FORMAT " -> " PTR_FORMAT "]",
+ p2i(&((address*) _sp)[-1]), p2i(((address*) _sp)[-1]), p2i(pc));
+ }
+ own_abi()->lr = (uint64_t)pc;
+ _cb = CodeCache::find_blob(pc);
+ if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) {
+ address orig = (((nmethod*)_cb)->get_original_pc(this));
+ assert(orig == _pc, "expected original to be stored before patching");
+ _deopt_state = is_deoptimized;
+ // Leave _pc as is.
+ } else {
+ _deopt_state = not_deoptimized;
+ _pc = pc;
+ }
+}
+
+bool frame::is_interpreted_frame_valid(JavaThread* thread) const {
+ // Is there anything to do?
+ assert(is_interpreted_frame(), "Not an interpreted frame");
+ return true;
+}
+
+BasicType frame::interpreter_frame_result(oop* oop_result, jvalue* value_result) {
+ assert(is_interpreted_frame(), "interpreted frame expected");
+ Method* method = interpreter_frame_method();
+ BasicType type = method->result_type();
+
+ if (method->is_native()) {
+ // Prior to calling into the runtime to notify the method exit the possible
+ // result value is saved into the interpreter frame.
+ address lresult = (address)&(get_ijava_state()->lresult);
+ address fresult = (address)&(get_ijava_state()->fresult);
+
+ switch (method->result_type()) {
+ case T_OBJECT:
+ case T_ARRAY: {
+ *oop_result = JNIHandles::resolve(*(jobject*)lresult);
+ break;
+ }
+ // We use std/stfd to store the values.
+ case T_BOOLEAN : value_result->z = (jboolean) *(unsigned long*)lresult; break;
+ case T_INT : value_result->i = (jint) *(long*)lresult; break;
+ case T_CHAR : value_result->c = (jchar) *(unsigned long*)lresult; break;
+ case T_SHORT : value_result->s = (jshort) *(long*)lresult; break;
+ case T_BYTE : value_result->z = (jbyte) *(long*)lresult; break;
+ case T_LONG : value_result->j = (jlong) *(long*)lresult; break;
+ case T_FLOAT : value_result->f = (jfloat) *(double*)fresult; break;
+ case T_DOUBLE : value_result->d = (jdouble) *(double*)fresult; break;
+ case T_VOID : /* Nothing to do */ break;
+ default : ShouldNotReachHere();
+ }
+ } else {
+ intptr_t* tos_addr = interpreter_frame_tos_address();
+ switch (method->result_type()) {
+ case T_OBJECT:
+ case T_ARRAY: {
+ oop obj = *(oop*)tos_addr;
+ assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check");
+ *oop_result = obj;
+ }
+ case T_BOOLEAN : value_result->z = (jboolean) *(jint*)tos_addr; break;
+ case T_BYTE : value_result->b = (jbyte) *(jint*)tos_addr; break;
+ case T_CHAR : value_result->c = (jchar) *(jint*)tos_addr; break;
+ case T_SHORT : value_result->s = (jshort) *(jint*)tos_addr; break;
+ case T_INT : value_result->i = *(jint*)tos_addr; break;
+ case T_LONG : value_result->j = *(jlong*)tos_addr; break;
+ case T_FLOAT : value_result->f = *(jfloat*)tos_addr; break;
+ case T_DOUBLE : value_result->d = *(jdouble*)tos_addr; break;
+ case T_VOID : /* Nothing to do */ break;
+ default : ShouldNotReachHere();
+ }
+ }
+ return type;
+}
+
+#ifndef PRODUCT
+
+void frame::describe_pd(FrameValues& values, int frame_no) {
+ if (is_interpreted_frame()) {
+#define DESCRIBE_ADDRESS(name) \
+ values.describe(frame_no, (intptr_t*)&(get_ijava_state()->name), #name);
+
+ DESCRIBE_ADDRESS(method);
+ DESCRIBE_ADDRESS(mirror);
+ DESCRIBE_ADDRESS(locals);
+ DESCRIBE_ADDRESS(monitors);
+ DESCRIBE_ADDRESS(cpoolCache);
+ DESCRIBE_ADDRESS(bcp);
+ DESCRIBE_ADDRESS(esp);
+ DESCRIBE_ADDRESS(mdx);
+ DESCRIBE_ADDRESS(top_frame_sp);
+ DESCRIBE_ADDRESS(sender_sp);
+ DESCRIBE_ADDRESS(oop_tmp);
+ DESCRIBE_ADDRESS(lresult);
+ DESCRIBE_ADDRESS(fresult);
+ }
+}
+#endif
+
+intptr_t *frame::initial_deoptimization_info() {
+ // unused... but returns fp() to minimize changes introduced by 7087445
+ return fp();
+}
+
+#ifndef PRODUCT
+// This is a generic constructor which is only used by pns() in debug.cpp.
+frame::frame(void* sp, void* fp, void* pc) : _sp((intptr_t*)sp), _unextended_sp((intptr_t*)sp) {
+ find_codeblob_and_set_pc_and_deopt_state((address)pc); // also sets _fp and adjusts _unextended_sp
+}
+
+void frame::pd_ps() {}
+#endif