diff src/cpu/x86/vm/frame_x86.inline.hpp @ 0:a61af66fc99e

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children 93b6525e3b82
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cpu/x86/vm/frame_x86.inline.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,288 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+// Inline functions for Intel frames:
+
+// Constructors:
+
+inline frame::frame() {
+  _pc = NULL;
+  _sp = NULL;
+  _unextended_sp = NULL;
+  _fp = NULL;
+  _cb = NULL;
+  _deopt_state = unknown;
+}
+
+inline frame:: frame(intptr_t* sp, intptr_t* fp, address pc) {
+  _sp = sp;
+  _unextended_sp = sp;
+  _fp = fp;
+  _pc = pc;
+  assert(pc != NULL, "no pc?");
+  _cb = CodeCache::find_blob(pc);
+  _deopt_state = not_deoptimized;
+  if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) {
+    _pc = (((nmethod*)_cb)->get_original_pc(this));
+    _deopt_state = is_deoptimized;
+  } else {
+    _deopt_state = not_deoptimized;
+  }
+}
+
+inline frame:: frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc) {
+  _sp = sp;
+  _unextended_sp = unextended_sp;
+  _fp = fp;
+  _pc = pc;
+  assert(pc != NULL, "no pc?");
+  _cb = CodeCache::find_blob(pc);
+  _deopt_state = not_deoptimized;
+  if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) {
+    _pc = (((nmethod*)_cb)->get_original_pc(this));
+    _deopt_state = is_deoptimized;
+  } else {
+    _deopt_state = not_deoptimized;
+  }
+}
+
+inline frame::frame(intptr_t* sp, intptr_t* fp) {
+  _sp = sp;
+  _unextended_sp = sp;
+  _fp = fp;
+  _pc = (address)(sp[-1]);
+  assert(_pc != NULL, "no pc?");
+  _cb = CodeCache::find_blob(_pc);
+  // In case of native stubs, the pc retreived here might be
+  // wrong. (the _last_native_pc will have the right value)
+  // So do not put add any asserts on the _pc here.
+
+  // QQQ The above comment is wrong and has been wrong for years. This constructor
+  // should (and MUST) not be called in that situation. In the native situation
+  // the pc should be supplied to the constructor.
+  _deopt_state = not_deoptimized;
+  if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) {
+    _pc = (((nmethod*)_cb)->get_original_pc(this));
+    _deopt_state = is_deoptimized;
+  } else {
+    _deopt_state = not_deoptimized;
+  }
+}
+
+// Accessors
+
+inline bool frame::equal(frame other) const {
+  bool ret =  sp() == other.sp()
+              && unextended_sp() == other.unextended_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 intptr_t* frame::link() const              { return (intptr_t*) *(intptr_t **)addr_at(link_offset); }
+inline void      frame::set_link(intptr_t* addr)  { *(intptr_t **)addr_at(link_offset) = addr; }
+
+
+inline intptr_t* frame::unextended_sp() const     { return _unextended_sp; }
+
+// Return address:
+
+inline address* frame::sender_pc_addr()      const { return (address*) addr_at( return_addr_offset); }
+inline address  frame::sender_pc()           const { return *sender_pc_addr(); }
+
+// return address of param, zero origin index.
+inline address* frame::native_param_addr(int idx) const { return (address*) addr_at( native_frame_initial_param_offset+idx); }
+
+#ifdef CC_INTERP
+
+inline interpreterState frame::get_interpreterState() const {
+  return ((interpreterState)addr_at( -sizeof(BytecodeInterpreter)/wordSize ));
+}
+
+inline intptr_t*    frame::sender_sp()        const {
+  // Hmm this seems awfully expensive QQQ, is this really called with interpreted frames?
+  if (is_interpreted_frame()) {
+    assert(false, "should never happen");
+    return get_interpreterState()->sender_sp();
+  } else {
+    return            addr_at(sender_sp_offset);
+  }
+}
+
+inline intptr_t** frame::interpreter_frame_locals_addr() const {
+  assert(is_interpreted_frame(), "must be interpreted");
+  return &(get_interpreterState()->_locals);
+}
+
+inline intptr_t* frame::interpreter_frame_bcx_addr() const {
+  assert(is_interpreted_frame(), "must be interpreted");
+  return (jint*) &(get_interpreterState()->_bcp);
+}
+
+
+// Constant pool cache
+
+inline constantPoolCacheOop* frame::interpreter_frame_cache_addr() const {
+  assert(is_interpreted_frame(), "must be interpreted");
+  return &(get_interpreterState()->_constants);
+}
+
+// Method
+
+inline methodOop* frame::interpreter_frame_method_addr() const {
+  assert(is_interpreted_frame(), "must be interpreted");
+  return &(get_interpreterState()->_method);
+}
+
+inline intptr_t* frame::interpreter_frame_mdx_addr() const {
+  assert(is_interpreted_frame(), "must be interpreted");
+  return (jint*) &(get_interpreterState()->_mdx);
+}
+
+// top of expression stack
+inline intptr_t* frame::interpreter_frame_tos_address() const {
+  assert(is_interpreted_frame(), "wrong frame type");
+  return get_interpreterState()->_stack + 1;
+}
+
+#else /* asm interpreter */
+inline intptr_t*    frame::sender_sp()        const { return            addr_at(   sender_sp_offset); }
+
+inline intptr_t** frame::interpreter_frame_locals_addr() const {
+  return (intptr_t**)addr_at(interpreter_frame_locals_offset);
+}
+
+inline intptr_t* frame::interpreter_frame_last_sp() const {
+  return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset);
+}
+
+inline intptr_t* frame::interpreter_frame_bcx_addr() const {
+  return (intptr_t*)addr_at(interpreter_frame_bcx_offset);
+}
+
+
+inline intptr_t* frame::interpreter_frame_mdx_addr() const {
+  return (intptr_t*)addr_at(interpreter_frame_mdx_offset);
+}
+
+
+
+// Constant pool cache
+
+inline constantPoolCacheOop* frame::interpreter_frame_cache_addr() const {
+  return (constantPoolCacheOop*)addr_at(interpreter_frame_cache_offset);
+}
+
+// Method
+
+inline methodOop* frame::interpreter_frame_method_addr() const {
+  return (methodOop*)addr_at(interpreter_frame_method_offset);
+}
+
+// top of expression stack
+inline intptr_t* frame::interpreter_frame_tos_address() const {
+  intptr_t* last_sp = interpreter_frame_last_sp();
+  if (last_sp == NULL ) {
+    return sp();
+  } else {
+    // sp() may have been extended by an adapter
+    assert(last_sp < fp() && last_sp >= sp(), "bad tos");
+    return last_sp;
+  }
+}
+
+#endif /* CC_INTERP */
+
+inline int frame::pd_oop_map_offset_adjustment() const {
+  return 0;
+}
+
+inline int frame::interpreter_frame_monitor_size() {
+  return BasicObjectLock::size();
+}
+
+
+// expression stack
+// (the max_stack arguments are used by the GC; see class FrameClosure)
+
+inline intptr_t* frame::interpreter_frame_expression_stack() const {
+  intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end();
+  return monitor_end-1;
+}
+
+
+inline jint frame::interpreter_frame_expression_stack_direction() { return -1; }
+
+
+// Entry frames
+
+inline JavaCallWrapper* frame::entry_frame_call_wrapper() const {
+ return (JavaCallWrapper*)at(entry_frame_call_wrapper_offset);
+}
+
+
+// Compiled frames
+
+inline int frame::local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) {
+  return (nof_args - local_index + (local_index < nof_args ? 1: -1));
+}
+
+inline int frame::monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) {
+  return local_offset_for_compiler(local_index, nof_args, max_nof_locals, max_nof_monitors);
+}
+
+inline int frame::min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors) {
+  return (nof_args - (max_nof_locals + max_nof_monitors*2) - 1);
+}
+
+inline bool frame::volatile_across_calls(Register reg) {
+  return true;
+}
+
+
+
+inline oop frame::saved_oop_result(RegisterMap* map) const       {
+  return *((oop*) map->location(rax->as_VMReg()));
+}
+
+inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
+  *((oop*) map->location(rax->as_VMReg())) = obj;
+}