aoqi@1: /*
aoqi@1:  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@1:  * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved.
aoqi@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@1:  *
aoqi@1:  * This code is free software; you can redistribute it and/or modify it
aoqi@1:  * under the terms of the GNU General Public License version 2 only, as
aoqi@1:  * published by the Free Software Foundation.
aoqi@1:  *
aoqi@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@1:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@1:  * accompanied this code).
aoqi@1:  *
aoqi@1:  * You should have received a copy of the GNU General Public License version
aoqi@1:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@1:  *
aoqi@1:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@1:  * or visit www.oracle.com if you need additional information or have any
aoqi@1:  * questions.
aoqi@1:  *
aoqi@1:  */
aoqi@1: 
aoqi@1: #ifndef CPU_MIPS_VM_FRAME_MIPS_INLINE_HPP
aoqi@1: #define CPU_MIPS_VM_FRAME_MIPS_INLINE_HPP
aoqi@1: 
aoqi@1: #include "code/codeCache.hpp"
aoqi@1: 
aoqi@1: // Inline functions for Loongson frames:
aoqi@1: 
aoqi@1: // Constructors:
aoqi@1: 
aoqi@1: inline frame::frame() {
aoqi@1:   _pc = NULL;
aoqi@1:   _sp = NULL;
aoqi@1:   _unextended_sp = NULL;
aoqi@1:   _fp = NULL;
aoqi@1:   _cb = NULL;
aoqi@1:   _deopt_state = unknown;
aoqi@1: }
aoqi@1: 
aoqi@1: inline frame:: frame(intptr_t* sp, intptr_t* fp, address pc) {
aoqi@1:   _sp = sp;
aoqi@1:   _unextended_sp = sp;
aoqi@1:   _fp = fp;
aoqi@1:   _pc = pc;
aoqi@1:   assert(pc != NULL, "no pc?");
aoqi@1:   _cb = CodeCache::find_blob(pc);
aoqi@1:   adjust_unextended_sp();
aoqi@1:   address original_pc = nmethod::get_deopt_original_pc(this);  
aoqi@1:   if (original_pc != NULL) {
aoqi@1:     _pc = original_pc;
aoqi@1:     _deopt_state = is_deoptimized;
aoqi@1:   } else {
aoqi@1:     _deopt_state = not_deoptimized;
aoqi@1:   }
aoqi@1: }
aoqi@1: 
aoqi@1: inline frame:: frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc) {
aoqi@1:   _sp = sp;
aoqi@1:   _unextended_sp = unextended_sp;
aoqi@1:   _fp = fp;
aoqi@1:   _pc = pc;
aoqi@1:   assert(pc != NULL, "no pc?");
aoqi@1:   _cb = CodeCache::find_blob(pc);
aoqi@1:   adjust_unextended_sp();
aoqi@1:   address original_pc = nmethod::get_deopt_original_pc(this);  
aoqi@1:   if (original_pc != NULL) {
aoqi@1:     _pc = original_pc;
aoqi@1:     _deopt_state = is_deoptimized;
aoqi@1:   } else {
aoqi@1:     _deopt_state = not_deoptimized;
aoqi@1:   }
aoqi@1: }
aoqi@1: 
aoqi@1: inline frame::frame(intptr_t* sp, intptr_t* fp) {
aoqi@1:   _sp = sp;
aoqi@1:   _unextended_sp = sp;
aoqi@1:   _fp = fp;
aoqi@1:   _pc = (address)(sp[-1]);
aoqi@1: 
aoqi@1:   // Here's a sticky one. This constructor can be called via AsyncGetCallTrace
aoqi@1:   // when last_Java_sp is non-null but the pc fetched is junk. If we are truly
aoqi@1:   // unlucky the junk value could be to a zombied method and we'll die on the
aoqi@1:   // find_blob call. This is also why we can have no asserts on the validity
aoqi@1:   // of the pc we find here. AsyncGetCallTrace -> pd_get_top_frame_for_signal_handler
aoqi@1:   // -> pd_last_frame should use a specialized version of pd_last_frame which could
aoqi@1:   // call a specilaized frame constructor instead of this one.
aoqi@1:   // Then we could use the assert below. However this assert is of somewhat dubious
aoqi@1:   // value.
aoqi@1:   // assert(_pc != NULL, "no pc?");
aoqi@1: 
aoqi@1:   _cb = CodeCache::find_blob(_pc);
aoqi@1:   adjust_unextended_sp();
aoqi@1:   address original_pc = nmethod::get_deopt_original_pc(this);
aoqi@1:   if (original_pc != NULL) {
aoqi@1:     _pc = original_pc;
aoqi@1:     _deopt_state = is_deoptimized;
aoqi@1:   } else {
aoqi@1:     _deopt_state = not_deoptimized;
aoqi@1:   }
aoqi@1: }
aoqi@1: 
aoqi@1: // Accessors
aoqi@1: 
aoqi@1: inline bool frame::equal(frame other) const {
aoqi@1:   bool ret =  sp() == other.sp()
aoqi@1:               && unextended_sp() == other.unextended_sp()
aoqi@1:               && fp() == other.fp()
aoqi@1:               && pc() == other.pc();
aoqi@1:   assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction");
aoqi@1:   return ret;
aoqi@1: }
aoqi@1: 
aoqi@1: // Return unique id for this frame. The id must have a value where we can distinguish
aoqi@1: // identity and younger/older relationship. NULL represents an invalid (incomparable)
aoqi@1: // frame.
aoqi@1: inline intptr_t* frame::id(void) const { return unextended_sp(); }
aoqi@1: 
aoqi@1: // Relationals on frames based
aoqi@1: // Return true if the frame is younger (more recent activation) than the frame represented by id
aoqi@1: inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id");
aoqi@1:                                                     return this->id() < id ; }
aoqi@1: 
aoqi@1: // Return true if the frame is older (less recent activation) than the frame represented by id
aoqi@1: inline bool frame::is_older(intptr_t* id) const   { assert(this->id() != NULL && id != NULL, "NULL frame id");
aoqi@1:                                                     return this->id() > id ; }
aoqi@1: 
aoqi@1: 
aoqi@1: 
aoqi@1: inline intptr_t* frame::link() const              { return (intptr_t*) *(intptr_t **)addr_at(link_offset); }
aoqi@1: inline void      frame::set_link(intptr_t* addr)  { *(intptr_t **)addr_at(link_offset) = addr; }
aoqi@1: 
aoqi@1: 
aoqi@1: inline intptr_t* frame::unextended_sp() const     { return _unextended_sp; }
aoqi@1: 
aoqi@1: // Return address:
aoqi@1: 
aoqi@1: inline address* frame::sender_pc_addr()      const { return (address*) addr_at( return_addr_offset); }
aoqi@1: inline address  frame::sender_pc()           const { return *sender_pc_addr(); }
aoqi@1: 
aoqi@1: // return address of param, zero origin index.
aoqi@1: inline address* frame::native_param_addr(int idx) const { return (address*) addr_at( native_frame_initial_param_offset+idx); }
aoqi@1: 
aoqi@1: #ifdef CC_INTERP
aoqi@1: 
aoqi@1: inline interpreterState frame::get_interpreterState() const {
aoqi@1:   return ((interpreterState)addr_at( -sizeof(BytecodeInterpreter)/wordSize ));
aoqi@1: }
aoqi@1: 
aoqi@1: inline intptr_t*    frame::sender_sp()        const {
aoqi@1:   // Hmm this seems awfully expensive QQQ, is this really called with interpreted frames?
aoqi@1:   if (is_interpreted_frame()) {
aoqi@1:     assert(false, "should never happen");
aoqi@1:     return get_interpreterState()->sender_sp();
aoqi@1:   } else {
aoqi@1:     return            addr_at(sender_sp_offset);
aoqi@1:   }
aoqi@1: }
aoqi@1: 
aoqi@1: inline intptr_t** frame::interpreter_frame_locals_addr() const {
aoqi@1:   assert(is_interpreted_frame(), "must be interpreted");
aoqi@1:   return &(get_interpreterState()->_locals);
aoqi@1: }
aoqi@1: 
aoqi@1: inline intptr_t* frame::interpreter_frame_bcx_addr() const {
aoqi@1:   assert(is_interpreted_frame(), "must be interpreted");
aoqi@1:   return (intptr_t*) &(get_interpreterState()->_bcp);
aoqi@1: }
aoqi@1: 
aoqi@1: 
aoqi@1: // Constant pool cache
aoqi@1: 
aoqi@1: inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const {
aoqi@1:   assert(is_interpreted_frame(), "must be interpreted");
aoqi@1:   return &(get_interpreterState()->_constants);
aoqi@1: }
aoqi@1: 
aoqi@1: // Method
aoqi@1: 
aoqi@1: inline Method** frame::interpreter_frame_method_addr() const {
aoqi@1:   assert(is_interpreted_frame(), "must be interpreted");
aoqi@1:   return &(get_interpreterState()->_method);
aoqi@1: }
aoqi@1: 
aoqi@1: inline intptr_t* frame::interpreter_frame_mdx_addr() const {
aoqi@1:   assert(is_interpreted_frame(), "must be interpreted");
aoqi@1:   return (intptr_t*) &(get_interpreterState()->_mdx);
aoqi@1: }
aoqi@1: 
aoqi@1: // top of expression stack
aoqi@1: inline intptr_t* frame::interpreter_frame_tos_address() const {
aoqi@1:   assert(is_interpreted_frame(), "wrong frame type");
aoqi@1:   return get_interpreterState()->_stack + 1;
aoqi@1: }
aoqi@1: 
aoqi@1: #else /* asm interpreter */
aoqi@1: inline intptr_t*    frame::sender_sp()        const { return            addr_at(   sender_sp_offset); }
aoqi@1: 
aoqi@1: inline intptr_t** frame::interpreter_frame_locals_addr() const {
aoqi@1:   return (intptr_t**)addr_at(interpreter_frame_locals_offset);
aoqi@1: }
aoqi@1: 
aoqi@1: inline intptr_t* frame::interpreter_frame_last_sp() const {
aoqi@1:   return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset);
aoqi@1: }
aoqi@1: 
aoqi@1: inline intptr_t* frame::interpreter_frame_bcx_addr() const {
aoqi@1:   return (intptr_t*)addr_at(interpreter_frame_bcx_offset);
aoqi@1: }
aoqi@1: 
aoqi@1: 
aoqi@1: inline intptr_t* frame::interpreter_frame_mdx_addr() const {
aoqi@1:   return (intptr_t*)addr_at(interpreter_frame_mdx_offset);
aoqi@1: }
aoqi@1: 
aoqi@1: 
aoqi@1: 
aoqi@1: // Constant pool cache
aoqi@1: 
aoqi@1: inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const {
aoqi@1:   return (ConstantPoolCache**)addr_at(interpreter_frame_cache_offset);
aoqi@1: }
aoqi@1: 
aoqi@1: // Method
aoqi@1: 
aoqi@1: inline Method** frame::interpreter_frame_method_addr() const {
aoqi@1:   return (Method**)addr_at(interpreter_frame_method_offset);
aoqi@1: }
aoqi@1: 
aoqi@1: // top of expression stack
aoqi@1: inline intptr_t* frame::interpreter_frame_tos_address() const {
aoqi@1:   intptr_t* last_sp = interpreter_frame_last_sp();
aoqi@1:   if (last_sp == NULL ) {
aoqi@1:     return sp();
aoqi@1:   } else {
aoqi@1:     // sp() may have been extended by an adapter
aoqi@1:     assert(last_sp <= (intptr_t*)interpreter_frame_monitor_end(), "bad tos");
aoqi@1:     return last_sp;
aoqi@1:   }
aoqi@1: }
aoqi@1: 
aoqi@1: inline oop* frame::interpreter_frame_temp_oop_addr() const {
aoqi@1:   return (oop *)(fp() + interpreter_frame_oop_temp_offset);
aoqi@1: }
aoqi@1: 
aoqi@1: #endif /* CC_INTERP */
aoqi@1: 
aoqi@1: inline int frame::pd_oop_map_offset_adjustment() const {
aoqi@1:   return 0;
aoqi@1: }
aoqi@1: 
aoqi@1: inline int frame::interpreter_frame_monitor_size() {
aoqi@1:   return BasicObjectLock::size();
aoqi@1: }
aoqi@1: 
aoqi@1: 
aoqi@1: // expression stack
aoqi@1: // (the max_stack arguments are used by the GC; see class FrameClosure)
aoqi@1: 
aoqi@1: inline intptr_t* frame::interpreter_frame_expression_stack() const {
aoqi@1:   intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end();
aoqi@1:   return monitor_end-1;
aoqi@1: }
aoqi@1: 
aoqi@1: 
aoqi@1: inline jint frame::interpreter_frame_expression_stack_direction() { return -1; }
aoqi@1: 
aoqi@1: 
aoqi@1: // Entry frames
aoqi@1: /* 
aoqi@1: inline JavaCallWrapper* frame::entry_frame_call_wrapper() const {
aoqi@1:  return (JavaCallWrapper*)at(entry_frame_call_wrapper_offset);
aoqi@1: }
aoqi@1: */
aoqi@1: 
aoqi@1: // Entry frames
aoqi@1: 
aoqi@1: inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const {   // Fu: 20130814
aoqi@1:   return (JavaCallWrapper**)addr_at(entry_frame_call_wrapper_offset);
aoqi@1: }
aoqi@1: 
aoqi@1: // Compiled frames
aoqi@1: 
aoqi@1: inline int frame::local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) {
aoqi@1:   return (nof_args - local_index + (local_index < nof_args ? 1: -1));
aoqi@1: }
aoqi@1: 
aoqi@1: inline int frame::monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) {
aoqi@1:   return local_offset_for_compiler(local_index, nof_args, max_nof_locals, max_nof_monitors);
aoqi@1: }
aoqi@1: 
aoqi@1: inline int frame::min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors) {
aoqi@1:   return (nof_args - (max_nof_locals + max_nof_monitors*2) - 1);
aoqi@1: }
aoqi@1: 
aoqi@1: inline bool frame::volatile_across_calls(Register reg) {
aoqi@1:   return true;
aoqi@1: }
aoqi@1: 
aoqi@1: 
aoqi@1: 
aoqi@1: inline oop frame::saved_oop_result(RegisterMap* map) const       {
aoqi@1:   return *((oop*) map->location(V0->as_VMReg()));
aoqi@1: }
aoqi@1: 
aoqi@1: inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
aoqi@1:   *((oop*) map->location(V0->as_VMReg())) = obj;
aoqi@1: }
aoqi@1: 
aoqi@1: #endif // CPU_MIPS_VM_FRAME_MIPS_INLINE_HPP