d4437819bd
Fix assert since top deoptimized frame has last_sp == interpreter_frame_monitor_begin if there are no expressions. Reviewed-by: twisti
299 lines
9.5 KiB
C++
299 lines
9.5 KiB
C++
/*
|
|
* Copyright 1997-2010 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);
|
|
|
|
address original_pc = nmethod::get_deopt_original_pc(this);
|
|
if (original_pc != NULL) {
|
|
_pc = original_pc;
|
|
_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);
|
|
|
|
address original_pc = nmethod::get_deopt_original_pc(this);
|
|
if (original_pc != NULL) {
|
|
_pc = original_pc;
|
|
assert(((nmethod*)_cb)->code_contains(_pc), "original PC must be in nmethod");
|
|
_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]);
|
|
|
|
// Here's a sticky one. This constructor can be called via AsyncGetCallTrace
|
|
// when last_Java_sp is non-null but the pc fetched is junk. If we are truly
|
|
// unlucky the junk value could be to a zombied method and we'll die on the
|
|
// find_blob call. This is also why we can have no asserts on the validity
|
|
// of the pc we find here. AsyncGetCallTrace -> pd_get_top_frame_for_signal_handler
|
|
// -> pd_last_frame should use a specialized version of pd_last_frame which could
|
|
// call a specilaized frame constructor instead of this one.
|
|
// Then we could use the assert below. However this assert is of somewhat dubious
|
|
// value.
|
|
// assert(_pc != NULL, "no pc?");
|
|
|
|
_cb = CodeCache::find_blob(_pc);
|
|
|
|
address original_pc = nmethod::get_deopt_original_pc(this);
|
|
if (original_pc != NULL) {
|
|
_pc = original_pc;
|
|
_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( -((int)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 (intptr_t*) &(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 (intptr_t*) &(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 or shrunk by an adapter. At least
|
|
// check that we don't fall behind the legal region.
|
|
// For top deoptimized frame last_sp == interpreter_frame_monitor_end.
|
|
assert(last_sp <= (intptr_t*) interpreter_frame_monitor_end(), "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;
|
|
}
|