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1 /* |
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2 * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. |
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3 * Copyright 2008 Red Hat, Inc. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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21 * CA 95054 USA or visit www.sun.com if you need additional information or |
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22 * have any questions. |
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23 * |
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24 */ |
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25 |
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26 // | ... | |
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27 // +--------------------+ ------------------ |
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28 // | parameter n-1 | low addresses |
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29 // | ... | |
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30 // | parameter 0 | |
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31 // | call_wrapper | |
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32 // | frame_type | |
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33 // | next_frame | high addresses |
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34 // +--------------------+ ------------------ |
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35 // | ... | |
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36 |
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37 class EntryFrame : public ZeroFrame { |
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38 private: |
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39 EntryFrame() : ZeroFrame() { |
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40 ShouldNotCallThis(); |
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41 } |
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42 |
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43 protected: |
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44 enum Layout { |
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45 call_wrapper_off = jf_header_words, |
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46 header_words |
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47 }; |
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48 |
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49 public: |
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50 static EntryFrame *build(ZeroStack* stack, |
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51 const intptr_t* parameters, |
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52 int parameter_words, |
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53 JavaCallWrapper* call_wrapper); |
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54 public: |
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55 JavaCallWrapper *call_wrapper() const { |
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56 return (JavaCallWrapper *) value_of_word(call_wrapper_off); |
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57 } |
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58 |
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59 public: |
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60 void identify_word(int frame_index, |
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61 int offset, |
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62 char* fieldbuf, |
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63 char* valuebuf, |
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64 int buflen) const; |
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65 }; |