FreeCalypso > hg > freecalypso-reveng
annotate objgrep/dumpmatch.c @ 197:cf3b4cb3d212
bootrom.notes typo fix (courtesy of pfalcon <pmiscml@gmail.com>)
author | Michael Spacefalcon <falcon@ivan.Harhan.ORG> |
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date | Thu, 16 Apr 2015 04:12:48 +0000 |
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1 /* |
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2 * objgrep: output on matches |
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3 */ |
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4 |
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5 #include <sys/types.h> |
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6 #include <stdio.h> |
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7 #include <stdint.h> |
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8 #include <stdlib.h> |
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9 #include <string.h> |
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10 #include <strings.h> |
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11 #include "intstruct.h" |
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12 #include "coffconst.h" |
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13 #include "globals.h" |
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14 |
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15 extern unsigned get_u16(), get_u32(); |
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16 |
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17 dump_symtab_on_match() |
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18 { |
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19 unsigned n; |
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20 struct internal_syment *sym; |
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21 |
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22 printf("\nThis source section's symbols:\n\n"); |
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23 for (n = 0; n < nsymtab; n++) { |
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24 sym = symtab[n]; |
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25 if (!sym) |
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26 continue; |
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27 if (sym->section != grep_section) |
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28 continue; |
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29 switch (sym->class) { |
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30 case C_EXT: |
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31 printf("%s = %08X\n", sym->name, |
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32 sym->value + match_offset); |
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33 continue; |
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34 case C_STAT: |
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35 printf("%s:%s = %08X\n", objfilename, sym->name, |
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36 sym->value + match_offset); |
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37 continue; |
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38 } |
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39 } |
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40 } |
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41 |
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42 static unsigned |
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43 arm_branch_reloc(location) |
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44 unsigned location; |
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45 { |
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46 unsigned word, dest; |
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47 |
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48 word = get_u32(binfilemap + location); |
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49 dest = (word & 0x00FFFFFF) << 2; |
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50 if (dest & 0x02000000) |
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51 dest |= 0xFC000000; |
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52 dest += location + 8; |
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53 return(dest); |
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54 } |
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55 |
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56 static unsigned |
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57 thumb_bl_reloc(location) |
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58 unsigned location; |
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59 { |
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60 unsigned ins1, ins2; |
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61 unsigned dest; |
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62 |
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63 ins1 = get_u16(binfilemap + location); |
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64 ins2 = get_u16(binfilemap + location + 2); |
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65 dest = ((ins1 & 0x7FF) << 12) | ((ins2 & 0x7FF) << 1); |
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66 if (dest & 0x00400000) |
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67 dest |= 0xFF800000; |
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68 dest += location + 4; |
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69 return(dest); |
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70 } |
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71 |
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72 process_relocs_on_match() |
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73 { |
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74 unsigned n, value; |
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75 struct internal_reloc *rel; |
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76 |
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77 for (n = 0, rel = relocs; n < grep_section->nreloc; n++, rel++) { |
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78 switch (rel->type) { |
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79 case RTYPE_LONG: |
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80 value = get_u32(binfilemap + match_offset + |
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81 rel->location); |
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82 break; |
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83 case RTYPE_ARM_B: |
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84 value = arm_branch_reloc(match_offset + rel->location); |
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85 break; |
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86 case RTYPE_THUMB_BL: |
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87 value = thumb_bl_reloc(match_offset + rel->location); |
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88 break; |
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89 default: |
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90 fprintf(stderr, |
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91 "BUG in dump_relocs_on_match(): bad reloc type\n"); |
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92 abort(); |
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93 } |
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94 value -= rel->addend; |
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95 rel->symvalue = value; |
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96 if (rel->secbase) { |
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97 if (!rel->secbase->recov_flag) { |
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98 rel->secbase->recov_flag = 1; |
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99 rel->secbase->recov_addr = value; |
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100 } else if (rel->secbase->recov_addr != value) |
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101 printf("Multiple addresses for %s:%s: %08X, %08X\n", |
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102 objfilename, rel->secbase->name, |
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103 rel->secbase->recov_addr, value); |
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104 } |
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105 } |
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106 } |
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107 |
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108 dump_ext_relocs_on_match() |
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109 { |
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110 unsigned n; |
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111 struct internal_reloc *rel; |
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112 |
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113 printf("\nExternals deduced from relocs:\n\n"); |
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114 for (n = 0, rel = relocs; n < grep_section->nreloc; n++, rel++) |
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115 if (rel->extsym) |
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116 printf("%s = %08X\n", rel->extsym->name, rel->symvalue); |
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117 } |
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118 |
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119 dump_reloc_symtab_on_match() |
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120 { |
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121 unsigned n; |
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122 struct internal_syment *sym; |
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123 |
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124 printf("\nThis module's symbols deduced from section relocs:\n\n"); |
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125 for (n = 0; n < nsymtab; n++) { |
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126 sym = symtab[n]; |
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127 if (!sym || !sym->section) |
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128 continue; |
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129 if (!sym->section->recov_flag) |
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130 continue; |
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131 switch (sym->class) { |
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132 case C_EXT: |
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133 printf("%s = %08X\n", sym->name, |
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134 sym->value + sym->section->recov_addr); |
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135 continue; |
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136 case C_STAT: |
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137 printf("%s:%s = %08X\n", objfilename, sym->name, |
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138 sym->value + sym->section->recov_addr); |
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139 continue; |
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140 } |
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141 } |
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142 } |