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products/sources/formale Sprachen/Java/Openjdk/src/hotspot/share/asm/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 2 kB

Quelle codeBuffer.inline.hpp Sprache: C

/*
* Copyright Amazon.com Inc. 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 SHARE_ASM_CODEBUFFER_INLINE_HPP
#define SHARE_ASM_CODEBUFFER_INLINE_HPP

#include "asm/codeBuffer.hpp"
#include "ci/ciEnv.hpp"
#include "code/compiledIC.hpp"

template <typename MacroAssembler, int relocate_format = 0>
bool emit_shared_stubs_to_interp(CodeBuffer* cb, SharedStubToInterpRequests* shared_stub_to_interp_requests) {
  if (shared_stub_to_interp_requests == NULL) {
    return true;
  }
  auto by_shared_method = [](SharedStubToInterpRequest* r1, SharedStubToInterpRequest* r2) {
    if (r1->shared_method() < r2->shared_method()) {
      return -1;
    } else if (r1->shared_method() > r2->shared_method()) {
      return 1;
    } else {
      return 0;
    }
  };
  shared_stub_to_interp_requests->sort(by_shared_method);
  MacroAssembler masm(cb);
  for (int i = 0; i < shared_stub_to_interp_requests->length();) {
    address stub = masm.start_a_stub(CompiledStaticCall::to_interp_stub_size());
    if (stub == NULL) {
      ciEnv::current()->record_failure("CodeCache is full");
      return false;
    }

    ciMethod* method = shared_stub_to_interp_requests->at(i).shared_method();
    do {
      address caller_pc = cb->insts_begin() + shared_stub_to_interp_requests->at(i).call_offset();
      masm.relocate(static_stub_Relocation::spec(caller_pc), relocate_format);
      ++i;
    } while (i < shared_stub_to_interp_requests->length() && shared_stub_to_interp_requests->at(i).shared_method() == method);
    masm.emit_static_call_stub();
    masm.end_a_stub();
  }
  return true;
}

#endif // SHARE_ASM_CODEBUFFER_INLINE_HPP

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