jdk8-mips64-public/hotspot: src/cpu/sparc/vm/frame_sparc.inline.hpp@126ea7725993 (annotated)

src/cpu/sparc/vm/frame_sparc.inline.hpp@126ea7725993 (annotated)

src/cpu/sparc/vm/frame_sparc.inline.hpp

Tue, 03 Aug 2010 08:13:38 -0400

author: bobv
date: Tue, 03 Aug 2010 08:13:38 -0400
changeset 2036: 126ea7725993
parent 1907: c18cbe5936b8
child 2314: f95d63e2154a
permissions: -rw-r--r--

6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes

 /*
  * Copyright (c) 1997, 2009, 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.
  *
  */
 // Inline functions for SPARC frames:
 // Constructors
 inline frame::frame() {
   _pc = NULL;
   _sp = NULL;
   _younger_sp = NULL;
   _cb = NULL;
   _deopt_state = unknown;
   _sp_adjustment_by_callee = 0;
 }
 // Accessors:
 inline bool frame::equal(frame other) const {
   bool ret =  sp() == other.sp()
            && fp() == other.fp()
            && pc() == other.pc();
   assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction");
   return ret;
 }
 // Return unique id for this frame. The id must have a value where we can distinguish
 // identity and younger/older relationship. NULL represents an invalid (incomparable)
 // frame.
 inline intptr_t* frame::id(void) const { return unextended_sp(); }
 // Relationals on frames based
 // Return true if the frame is younger (more recent activation) than the frame represented by id
 inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id");
                                                     return this->id() < id ; }
 // Return true if the frame is older (less recent activation) than the frame represented by id
 inline bool frame::is_older(intptr_t* id) const   { assert(this->id() != NULL && id != NULL, "NULL frame id");
                                                     return this->id() > id ; }
 inline int frame::frame_size(RegisterMap* map) const { return sender_sp() - sp(); }
 inline intptr_t* frame::link() const { return (intptr_t *)(fp()[FP->sp_offset_in_saved_window()] + STACK_BIAS); }
 inline void frame::set_link(intptr_t* addr) { assert(link()==addr, "frame nesting is controlled by hardware"); }
 inline intptr_t* frame::unextended_sp() const { return sp() + _sp_adjustment_by_callee; }
 // return address:
 inline address  frame::sender_pc()        const    { return *I7_addr() + pc_return_offset; }
 inline address* frame::I7_addr() const  { return (address*) &sp()[ I7->sp_offset_in_saved_window()]; }
 inline address* frame::I0_addr() const  { return (address*) &sp()[ I0->sp_offset_in_saved_window()]; }
 inline address* frame::O7_addr() const  { return (address*) &younger_sp()[ I7->sp_offset_in_saved_window()]; }
 inline address* frame::O0_addr() const  { return (address*) &younger_sp()[ I0->sp_offset_in_saved_window()]; }
 inline intptr_t*    frame::sender_sp() const  { return fp(); }
 // Used only in frame::oopmapreg_to_location
 // This return a value in VMRegImpl::slot_size
 inline int frame::pd_oop_map_offset_adjustment() const {
   return _sp_adjustment_by_callee * VMRegImpl::slots_per_word;
 }
 #ifdef CC_INTERP
 inline intptr_t** frame::interpreter_frame_locals_addr() const {
   interpreterState istate = get_interpreterState();
   return (intptr_t**) &istate->_locals;
 }
 inline intptr_t* frame::interpreter_frame_bcx_addr() const {
   interpreterState istate = get_interpreterState();
   return (intptr_t*) &istate->_bcp;
 }
 inline intptr_t* frame::interpreter_frame_mdx_addr() const {
   interpreterState istate = get_interpreterState();
   return (intptr_t*) &istate->_mdx;
 }
 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; }
 // bottom(base) of the expression stack (highest address)
 inline intptr_t* frame::interpreter_frame_expression_stack() const {
   return (intptr_t*)interpreter_frame_monitor_end() - 1;
 }
 // top of expression stack (lowest address)
 inline intptr_t* frame::interpreter_frame_tos_address() const {
   interpreterState istate = get_interpreterState();
   return istate->_stack + 1; // Is this off by one? QQQ
 }
 // monitor elements
 // in keeping with Intel side: end is lower in memory than begin;
 // and beginning element is oldest element
 // Also begin is one past last monitor.
 inline BasicObjectLock* frame::interpreter_frame_monitor_begin()       const  {
   return get_interpreterState()->monitor_base();
 }
 inline BasicObjectLock* frame::interpreter_frame_monitor_end()         const  {
   return (BasicObjectLock*) get_interpreterState()->stack_base();
 }
 inline int frame::interpreter_frame_monitor_size() {
   return round_to(BasicObjectLock::size(), WordsPerLong);
 }
 inline methodOop* frame::interpreter_frame_method_addr() const {
   interpreterState istate = get_interpreterState();
   return &istate->_method;
 }
 // Constant pool cache
 // where LcpoolCache is saved:
 inline constantPoolCacheOop* frame::interpreter_frame_cpoolcache_addr() const {
   interpreterState istate = get_interpreterState();
   return &istate->_constants; // should really use accessor
   }
 inline constantPoolCacheOop* frame::interpreter_frame_cache_addr() const {
   interpreterState istate = get_interpreterState();
   return &istate->_constants;
 }
 #else // !CC_INTERP
 inline intptr_t** frame::interpreter_frame_locals_addr() const {
   return (intptr_t**) sp_addr_at( Llocals->sp_offset_in_saved_window());
 }
 inline intptr_t* frame::interpreter_frame_bcx_addr() const {
   // %%%%% reinterpreting Lbcp as a bcx
   return (intptr_t*) sp_addr_at( Lbcp->sp_offset_in_saved_window());
 }
 inline intptr_t* frame::interpreter_frame_mdx_addr() const {
   // %%%%% reinterpreting ImethodDataPtr as a mdx
   return (intptr_t*) sp_addr_at( ImethodDataPtr->sp_offset_in_saved_window());
 }
 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; }
 // bottom(base) of the expression stack (highest address)
 inline intptr_t* frame::interpreter_frame_expression_stack() const {
   return (intptr_t*)interpreter_frame_monitors() - 1;
 }
 // top of expression stack (lowest address)
 inline intptr_t* frame::interpreter_frame_tos_address() const {
   return *interpreter_frame_esp_addr() + 1;
 }
 inline void frame::interpreter_frame_set_tos_address( intptr_t* x ) {
   *interpreter_frame_esp_addr() = x - 1;
 }
 // monitor elements
 // in keeping with Intel side: end is lower in memory than begin;
 // and beginning element is oldest element
 // Also begin is one past last monitor.
 inline BasicObjectLock* frame::interpreter_frame_monitor_begin()       const  {
   int rounded_vm_local_words = round_to(frame::interpreter_frame_vm_local_words, WordsPerLong);
   return (BasicObjectLock *)fp_addr_at(-rounded_vm_local_words);
 }
 inline BasicObjectLock* frame::interpreter_frame_monitor_end()         const  {
   return interpreter_frame_monitors();
 }
 inline void frame::interpreter_frame_set_monitor_end(BasicObjectLock* value) {
   interpreter_frame_set_monitors(value);
 }
 inline int frame::interpreter_frame_monitor_size() {
   return round_to(BasicObjectLock::size(), WordsPerLong);
 }
 inline methodOop* frame::interpreter_frame_method_addr() const {
   return (methodOop*)sp_addr_at( Lmethod->sp_offset_in_saved_window());
 }
 // Constant pool cache
 // where LcpoolCache is saved:
 inline constantPoolCacheOop* frame::interpreter_frame_cpoolcache_addr() const {
     return (constantPoolCacheOop*)sp_addr_at(LcpoolCache->sp_offset_in_saved_window());
   }
 inline constantPoolCacheOop* frame::interpreter_frame_cache_addr() const {
   return (constantPoolCacheOop*)sp_addr_at( LcpoolCache->sp_offset_in_saved_window());
 }
 #endif // CC_INTERP
 inline JavaCallWrapper* frame::entry_frame_call_wrapper() const {
   // note: adjust this code if the link argument in StubGenerator::call_stub() changes!
   const Argument link = Argument(0, false);
   return (JavaCallWrapper*)sp()[link.as_in().as_register()->sp_offset_in_saved_window()];
 }
 inline int frame::local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) {
    // always allocate non-argument locals 0..5 as if they were arguments:
   int allocated_above_frame = nof_args;
   if (allocated_above_frame < callee_register_argument_save_area_words)
     allocated_above_frame = callee_register_argument_save_area_words;
   if (allocated_above_frame > max_nof_locals)
     allocated_above_frame = max_nof_locals;
   // Note: monitors (BasicLock blocks) are never allocated in argument slots
   //assert(local_index >= 0 && local_index < max_nof_locals, "bad local index");
   if (local_index < allocated_above_frame)
     return local_index + callee_register_argument_save_area_sp_offset;
   else
     return local_index - (max_nof_locals + max_nof_monitors*2) + compiler_frame_vm_locals_fp_offset;
 }
 inline int frame::monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) {
   assert(local_index >= max_nof_locals && ((local_index - max_nof_locals) & 1) && (local_index - max_nof_locals) < max_nof_monitors*2, "bad monitor index");
   // The compiler uses the __higher__ of two indexes allocated to the monitor.
   // Increasing local indexes are mapped to increasing memory locations,
   // so the start of the BasicLock is associated with the __lower__ index.
   int offset = (local_index-1) - (max_nof_locals + max_nof_monitors*2) + compiler_frame_vm_locals_fp_offset;
   // We allocate monitors aligned zero mod 8:
   assert((offset & 1) == 0, "monitor must be an an even address.");
   // This works because all monitors are allocated after
   // all locals, and because the highest address corresponding to any
   // monitor index is always even.
   assert((compiler_frame_vm_locals_fp_offset & 1) == 0, "end of monitors must be even address");
   return offset;
 }
 inline int frame::min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors) {
    // always allocate non-argument locals 0..5 as if they were arguments:
   int allocated_above_frame = nof_args;
   if (allocated_above_frame < callee_register_argument_save_area_words)
     allocated_above_frame = callee_register_argument_save_area_words;
   if (allocated_above_frame > max_nof_locals)
     allocated_above_frame = max_nof_locals;
   int allocated_in_frame = (max_nof_locals + max_nof_monitors*2) - allocated_above_frame;
   return compiler_frame_vm_locals_fp_offset - allocated_in_frame;
 }
 // On SPARC, the %lN and %iN registers are non-volatile.
 inline bool frame::volatile_across_calls(Register reg) {
   // This predicate is (presently) applied only to temporary registers,
   // and so it need not recognize non-volatile globals.
   return reg->is_out() || reg->is_global();
 }
 inline oop  frame::saved_oop_result(RegisterMap* map) const      {
   return *((oop*) map->location(O0->as_VMReg()));
 }
 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
   *((oop*) map->location(O0->as_VMReg())) = obj;
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/cpu/sparc/vm/frame_sparc.inline.hpp@126ea7725993 (annotated)

src/cpu/sparc/vm/frame_sparc.inline.hpp