Mercurial > hg > CbC > CbC_llvm

annotate lib/DebugInfo/DWARFAbbreviationDeclaration.cpp @ 21:fc4a6333556f

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change error message when tail call elimination is failed.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 14 Oct 2013 19:09:00 +0900
parents 9ad51c7bc036
children
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1 //===-- DWARFAbbreviationDeclaration.cpp ----------------------------------===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #include "DWARFAbbreviationDeclaration.h"
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11 #include "llvm/Support/Dwarf.h"
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12 #include "llvm/Support/Format.h"
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13 #include "llvm/Support/raw_ostream.h"
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14 using namespace llvm;
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15 using namespace dwarf;
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16
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17 bool
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18 DWARFAbbreviationDeclaration::extract(DataExtractor data, uint32_t* offset_ptr){
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19 return extract(data, offset_ptr, data.getULEB128(offset_ptr));
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20 }
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21
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22 bool
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23 DWARFAbbreviationDeclaration::extract(DataExtractor data, uint32_t* offset_ptr,
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24 uint32_t code) {
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25 Code = code;
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26 Attribute.clear();
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27 if (Code) {
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28 Tag = data.getULEB128(offset_ptr);
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29 HasChildren = data.getU8(offset_ptr);
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30
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31 while (data.isValidOffset(*offset_ptr)) {
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32 uint16_t attr = data.getULEB128(offset_ptr);
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33 uint16_t form = data.getULEB128(offset_ptr);
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34
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35 if (attr && form)
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36 Attribute.push_back(DWARFAttribute(attr, form));
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37 else
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38 break;
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39 }
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40
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41 return Tag != 0;
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42 } else {
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43 Tag = 0;
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44 HasChildren = false;
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45 }
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46
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47 return false;
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48 }
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49
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50 void DWARFAbbreviationDeclaration::dump(raw_ostream &OS) const {
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51 const char *tagString = TagString(getTag());
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52 OS << '[' << getCode() << "] ";
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53 if (tagString)
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54 OS << tagString;
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55 else
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56 OS << format("DW_TAG_Unknown_%x", getTag());
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57 OS << "\tDW_CHILDREN_" << (hasChildren() ? "yes" : "no") << '\n';
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58 for (unsigned i = 0, e = Attribute.size(); i != e; ++i) {
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59 OS << '\t';
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60 const char *attrString = AttributeString(Attribute[i].getAttribute());
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61 if (attrString)
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62 OS << attrString;
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63 else
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64 OS << format("DW_AT_Unknown_%x", Attribute[i].getAttribute());
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65 OS << '\t';
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66 const char *formString = FormEncodingString(Attribute[i].getForm());
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67 if (formString)
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68 OS << formString;
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69 else
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70 OS << format("DW_FORM_Unknown_%x", Attribute[i].getForm());
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71 OS << '\n';
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72 }
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73 OS << '\n';
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74 }
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75
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76 uint32_t
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77 DWARFAbbreviationDeclaration::findAttributeIndex(uint16_t attr) const {
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78 for (uint32_t i = 0, e = Attribute.size(); i != e; ++i) {
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79 if (Attribute[i].getAttribute() == attr)
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80 return i;
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81 }
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82 return -1U;
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83 }