| /* |
| * Copyright (c) 1997, 2016, 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. |
| * |
| */ |
| |
| #ifndef CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP |
| #define CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP |
| |
| #include "asm/macroAssembler.hpp" |
| #include "code/vmreg.inline.hpp" |
| #include "utilities/align.hpp" |
| |
| // 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 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(); } |
| |
| inline intptr_t* frame::real_fp() 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; |
| } |
| |
| 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_bcp_addr() const { |
| return (intptr_t*) sp_addr_at( Lbcp->sp_offset_in_saved_window()); |
| } |
| |
| inline intptr_t* frame::interpreter_frame_mdp_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 BasicObjectLock** frame::interpreter_frame_monitors_addr() const { |
| return (BasicObjectLock**) sp_addr_at(Lmonitors->sp_offset_in_saved_window()); |
| } |
| inline intptr_t** frame::interpreter_frame_esp_addr() const { |
| return (intptr_t**)sp_addr_at(Lesp->sp_offset_in_saved_window()); |
| } |
| |
| 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 = align_up((int)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 align_up(BasicObjectLock::size(), WordsPerLong); |
| } |
| |
| inline Method** frame::interpreter_frame_method_addr() const { |
| return (Method**)sp_addr_at( Lmethod->sp_offset_in_saved_window()); |
| } |
| |
| inline BasicObjectLock* frame::interpreter_frame_monitors() const { |
| return *interpreter_frame_monitors_addr(); |
| } |
| |
| inline void frame::interpreter_frame_set_monitors(BasicObjectLock* monitors) { |
| *interpreter_frame_monitors_addr() = monitors; |
| } |
| |
| inline oop* frame::interpreter_frame_mirror_addr() const { |
| return (oop*)(fp() + interpreter_frame_mirror_offset); |
| } |
| |
| // Constant pool cache |
| |
| // where LcpoolCache is saved: |
| inline ConstantPoolCache** frame::interpreter_frame_cpoolcache_addr() const { |
| return (ConstantPoolCache**)sp_addr_at(LcpoolCache->sp_offset_in_saved_window()); |
| } |
| |
| inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { |
| return (ConstantPoolCache**)sp_addr_at( LcpoolCache->sp_offset_in_saved_window()); |
| } |
| |
| inline oop* frame::interpreter_frame_temp_oop_addr() const { |
| return (oop *)(fp() + interpreter_frame_oop_temp_offset); |
| } |
| |
| |
| inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() 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; |
| } |
| |
| #endif // CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP |