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/*
* Copyright 1997-2008 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.
*
*/
#include "incls/_precompiled.incl"
#include "incls/_stubCodeGenerator.cpp.incl"
// Implementation of StubCodeDesc
StubCodeDesc* StubCodeDesc::_list = NULL;
int StubCodeDesc::_count = 0;
StubCodeDesc* StubCodeDesc::desc_for(address pc) {
StubCodeDesc* p = _list;
while (p != NULL && !p->contains(pc)) p = p->_next;
// p == NULL || p->contains(pc)
return p;
}
StubCodeDesc* StubCodeDesc::desc_for_index(int index) {
StubCodeDesc* p = _list;
while (p != NULL && p->index() != index) p = p->_next;
return p;
}
const char* StubCodeDesc::name_for(address pc) {
StubCodeDesc* p = desc_for(pc);
return p == NULL ? NULL : p->name();
}
void StubCodeDesc::print() {
tty->print(group());
tty->print("::");
tty->print(name());
tty->print(" [" INTPTR_FORMAT ", " INTPTR_FORMAT "[ (%d bytes)", begin(), end(), size_in_bytes());
}
// Implementation of StubCodeGenerator
StubCodeGenerator::StubCodeGenerator(CodeBuffer* code) {
_masm = new MacroAssembler(code);
_first_stub = _last_stub = NULL;
}
extern "C" {
static int compare_cdesc(const void* void_a, const void* void_b) {
int ai = (*((StubCodeDesc**) void_a))->index();
int bi = (*((StubCodeDesc**) void_b))->index();
return ai - bi;
}
}
StubCodeGenerator::~StubCodeGenerator() {
if (PrintStubCode) {
CodeBuffer* cbuf = _masm->code();
CodeBlob* blob = CodeCache::find_blob_unsafe(cbuf->insts()->start());
if (blob != NULL) {
blob->set_comments(cbuf->comments());
}
bool saw_first = false;
StubCodeDesc* toprint[1000];
int toprint_len = 0;
for (StubCodeDesc* cdesc = _last_stub; cdesc != NULL; cdesc = cdesc->_next) {
toprint[toprint_len++] = cdesc;
if (cdesc == _first_stub) { saw_first = true; break; }
}
assert(saw_first, "must get both first & last");
// Print in reverse order:
qsort(toprint, toprint_len, sizeof(toprint[0]), compare_cdesc);
for (int i = 0; i < toprint_len; i++) {
StubCodeDesc* cdesc = toprint[i];
cdesc->print();
tty->cr();
Disassembler::decode(cdesc->begin(), cdesc->end());
tty->cr();
}
}
}
void StubCodeGenerator::stub_prolog(StubCodeDesc* cdesc) {
// default implementation - do nothing
}
void StubCodeGenerator::stub_epilog(StubCodeDesc* cdesc) {
// default implementation - record the cdesc
if (_first_stub == NULL) _first_stub = cdesc;
_last_stub = cdesc;
}
// Implementation of CodeMark
StubCodeMark::StubCodeMark(StubCodeGenerator* cgen, const char* group, const char* name) {
_cgen = cgen;
_cdesc = new StubCodeDesc(group, name, _cgen->assembler()->pc());
_cgen->stub_prolog(_cdesc);
// define the stub's beginning (= entry point) to be after the prolog:
_cdesc->set_begin(_cgen->assembler()->pc());
}
StubCodeMark::~StubCodeMark() {
_cgen->assembler()->flush();
_cdesc->set_end(_cgen->assembler()->pc());
assert(StubCodeDesc::_list == _cdesc, "expected order on list");
_cgen->stub_epilog(_cdesc);
VTune::register_stub(_cdesc->name(), _cdesc->begin(), _cdesc->end());
Forte::register_stub(_cdesc->name(), _cdesc->begin(), _cdesc->end());
if (JvmtiExport::should_post_dynamic_code_generated()) {
JvmtiExport::post_dynamic_code_generated(_cdesc->name(), _cdesc->begin(), _cdesc->end());
}
}
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