FreeCalypso > hg > freecalypso-reveng

annotate leo-obj/tool/profile.c @ 193:37f78f986a0a

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grokdsn: tree dump implemented
author Michael Spacefalcon <falcon@ivan.Harhan.ORG>
date Wed, 07 Jan 2015 08:09:30 +0000
parents 87b82398a08b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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119
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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1 /*
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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2 * It is handy to have a "profile" of what functions and variables
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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3 * a given module defines (presents to the rest of the fw) and what
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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4 * it references. This profile is constructed from the symbol table.
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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5 *
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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6 * Experience indicates that the order of these symbols in the
fb1e47bebe00 tiobjd: sorted profile output
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7 * artifact symtab is often "random", and an alphabetic sort is
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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8 * expected to improve readability. This module contains the
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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9 * messy code.
fb1e47bebe00 tiobjd: sorted profile output
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10 */
fb1e47bebe00 tiobjd: sorted profile output
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11
fb1e47bebe00 tiobjd: sorted profile output
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12 #include <sys/types.h>
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13 #include <stdio.h>
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14 #include <stdlib.h>
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15 #include <string.h>
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16 #include <strings.h>
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17 #include "intstruct.h"
fb1e47bebe00 tiobjd: sorted profile output
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18 #include "coffconst.h"
fb1e47bebe00 tiobjd: sorted profile output
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19 #include "globals.h"
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20
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21 static int
fb1e47bebe00 tiobjd: sorted profile output
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22 is_symbol_text_def(sym)
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23 struct internal_syment *sym;
fb1e47bebe00 tiobjd: sorted profile output
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24 {
fb1e47bebe00 tiobjd: sorted profile output
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25 if (!sym->section)
fb1e47bebe00 tiobjd: sorted profile output
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26 return(0);
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27 if (!strncmp(sym->section->name, ".text", 5))
fb1e47bebe00 tiobjd: sorted profile output
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28 return(1);
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29 else
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30 return(0);
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31 }
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32
fb1e47bebe00 tiobjd: sorted profile output
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33 static int
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34 is_symbol_nontext_def(sym)
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35 struct internal_syment *sym;
fb1e47bebe00 tiobjd: sorted profile output
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36 {
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37 if (!sym->section)
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38 return(0);
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39 if (!strncmp(sym->section->name, ".text", 5))
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40 return(0);
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41 else
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42 return(1);
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43 }
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44
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45 static int
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46 is_symbol_extref(sym)
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47 struct internal_syment *sym;
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48 {
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49 if (sym->section)
fb1e47bebe00 tiobjd: sorted profile output
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50 return(0);
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51 else
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52 return(1);
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53 }
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54
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55 static int
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56 compare_for_sort(p1, p2)
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57 struct internal_syment **p1, **p2;
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58 {
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59 return strcmp((*p1)->name, (*p2)->name);
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60 }
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61
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62 static void
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63 list_class(firstidx, lastidx, total, checkfunc, printsec)
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64 unsigned firstidx, lastidx, total;
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65 int (*checkfunc)();
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66 {
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67 struct internal_syment **array, *sym;
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68 unsigned n, m;
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69
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70 array = malloc(sizeof(void *) * total);
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71 if (!array) {
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72 perror("malloc");
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73 exit(1);
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74 }
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75 m = 0;
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76 for (n = firstidx; n <= lastidx; n++) {
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77 sym = symtab[n];
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78 if (!sym)
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79 continue;
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80 if (sym->class != C_EXT)
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81 continue;
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82 if (!checkfunc(sym))
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83 continue;
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84 array[m++] = sym;
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85 }
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86 if (m != total) {
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87 fprintf(stderr, "BUG: symbol class miscount in profile gen\n");
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88 exit(1);
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89 }
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90 qsort(array, total, sizeof(void *), compare_for_sort);
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91 for (n = 0; n < total; n++) {
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92 sym = array[n];
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93 if (printsec)
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94 printf("%s (%s)\n", sym->name, sym->section->name);
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95 else
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96 printf("%s\n", sym->name);
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97 }
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98 free(array);
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99 putchar('\n');
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100 }
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101
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102 extern_profile_report(heading)
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103 char *heading;
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104 {
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105 unsigned n;
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106 int first_extern = -1, last_extern;
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107 struct internal_syment *sym;
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108 unsigned defs_text = 0, defs_nontext = 0, extrefs = 0;
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109
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110 for (n = 0; n < nsymtab; n++) {
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111 sym = symtab[n];
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112 if (!sym)
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113 continue;
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114 if (sym->class != C_EXT)
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115 continue;
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116 if (first_extern < 0)
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117 first_extern = n;
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118 last_extern = n;
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119 if (sym->scnum < 0) {
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120 fprintf(stderr,
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121 "symbol entry #%u: unexpected negative scnum for C_EXT\n", n);
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122 exit(1);
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123 }
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124 if (sym->scnum == 0)
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125 extrefs++;
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126 else if (!strncmp(sym->section->name, ".text", 5))
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127 defs_text++;
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128 else
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129 defs_nontext++;
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130 }
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131 if (first_extern < 0) {
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132 printf("%s has no external symbols!\n", heading);
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133 return(1);
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134 }
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135 if (defs_text || defs_nontext) {
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136 printf("%s defines:\n\n", heading);
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137 if (defs_text)
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138 list_class(first_extern, last_extern, defs_text,
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139 is_symbol_text_def, 1);
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140 if (defs_nontext)
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141 list_class(first_extern, last_extern, defs_nontext,
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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142 is_symbol_nontext_def, 1);
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143 }
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144 if (extrefs) {
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145 printf("%s references:\n\n", heading);
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146 list_class(first_extern, last_extern, extrefs,
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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diff changeset
147 is_symbol_extref, 0);
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
148 }
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
149 return(0);
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
150 }
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
151
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
152 cmd_profile()
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
153 {
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
154 get_int_section_table();
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
155 get_int_symbol_table();
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
156 extern_profile_report(objfilename);
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
157 exit(0);
fb1e47bebe00 tiobjd: sorted profile output
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
158 }