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48 lines
2.4 KiB
48 lines
2.4 KiB
16 years ago
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// Copyright 2009 the V8 project authors. All rights reserved.
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16 years ago
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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16 years ago
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#ifndef V8_X64_SIMULATOR_X64_H_
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#define V8_X64_SIMULATOR_X64_H_
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16 years ago
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// Since there is no simulator for the ia32 architecture the only thing we can
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// do is to call the entry directly.
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#define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
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entry(p0, p1, p2, p3, p4);
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// Calculated the stack limit beyond which we will throw stack overflow errors.
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// This macro must be called from a C++ method. It relies on being able to take
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// the address of "this" to get a value on the current execution stack and then
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// calculates the stack limit based on that value.
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// NOTE: The check for overflow is not safe as there is no guarantee that the
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// running thread has its stack in all memory up to address 0x00000000.
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#define GENERATED_CODE_STACK_LIMIT(limit) \
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(reinterpret_cast<uintptr_t>(this) >= limit ? \
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reinterpret_cast<uintptr_t>(this) - limit : 0)
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16 years ago
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#endif // V8_X64_SIMULATOR_X64_H_
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