1 | /* |
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2 | * COPYRIGHT (c) 2012, 2018 Chris Johns <chrisj@rtems.org> |
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3 | * |
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4 | * The license and distribution terms for this file may be |
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5 | * found in the file LICENSE in this distribution or at |
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6 | * http://www.rtems.org/license/LICENSE. |
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7 | */ |
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8 | /** |
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9 | * @file |
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10 | * |
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11 | * @ingroup rtems_rtld |
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12 | * |
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13 | * @brief RTEMS Run-Time Link Editor Shell Commands |
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14 | * |
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15 | * A simple RTL command to aid using the RTL. |
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16 | */ |
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17 | |
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18 | #if HAVE_CONFIG_H |
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19 | #include "config.h" |
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20 | #endif |
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21 | |
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22 | #include <inttypes.h> |
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23 | #include <rtems/inttypes.h> |
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24 | |
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25 | #include <sys/stat.h> |
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26 | #include <regex.h> |
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27 | #include <string.h> |
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28 | |
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29 | #include <dlfcn.h> |
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30 | |
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31 | #include <rtems/printer.h> |
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32 | #include <rtems/rtl/rtl.h> |
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33 | #include <rtems/rtl/rtl-archive.h> |
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34 | #include <rtems/rtl/rtl-shell.h> |
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35 | #include <rtems/rtl/rtl-trace.h> |
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36 | #include "rtl-chain-iterator.h" |
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37 | |
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38 | /** |
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39 | * The type of the shell handlers we have. |
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40 | */ |
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41 | typedef int (*rtems_rtl_shell_handler) (const rtems_printer* printer, int argc, char *argv[]); |
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42 | |
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43 | /** |
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44 | * Table of handlers we parse to invoke the command. |
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45 | */ |
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46 | typedef struct |
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47 | { |
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48 | const char* name; /**< The sub-command's name. */ |
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49 | rtems_rtl_shell_handler handler; /**< The sub-command's handler. */ |
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50 | const char* help; /**< The sub-command's help. */ |
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51 | } rtems_rtl_shell_cmd; |
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52 | |
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53 | /** |
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54 | * Object summary data. |
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55 | */ |
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56 | typedef struct |
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57 | { |
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58 | int count; /**< The number of object files. */ |
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59 | size_t exec; /**< The amount of executable memory allocated. */ |
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60 | size_t symbols; /**< The amount of symbol memory allocated. */ |
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61 | } rtems_rtl_obj_summary; |
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62 | |
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63 | /** |
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64 | * Object summary iterator. |
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65 | */ |
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66 | static bool |
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67 | rtems_rtl_obj_summary_iterator (rtems_chain_node* node, void* data) |
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68 | { |
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69 | rtems_rtl_obj_summary* summary = data; |
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70 | rtems_rtl_obj* obj = (rtems_rtl_obj*) node; |
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71 | ++summary->count; |
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72 | summary->exec += obj->exec_size; |
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73 | summary->symbols += obj->global_size; |
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74 | return true; |
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75 | } |
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76 | |
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77 | /** |
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78 | * Count the number of symbols. |
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79 | */ |
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80 | static int |
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81 | rtems_rtl_count_symbols (rtems_rtl_data* rtl) |
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82 | { |
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83 | int count; |
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84 | int bucket; |
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85 | for (count = 0, bucket = 0; bucket < rtl->globals.nbuckets; ++bucket) |
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86 | count += rtems_rtl_chain_count (&rtl->globals.buckets[bucket]); |
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87 | return count; |
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88 | } |
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89 | |
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90 | static int |
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91 | rtems_rtl_shell_status (const rtems_printer* printer, |
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92 | int argc, |
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93 | char* argv[]) |
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94 | { |
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95 | rtems_rtl_obj_summary summary; |
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96 | size_t total_memory; |
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97 | rtems_rtl_data* rtl; |
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98 | |
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99 | rtl = rtems_rtl_lock (); |
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100 | if (rtl == NULL) |
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101 | { |
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102 | rtems_printf (printer, "error: cannot lock the linker\n"); |
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103 | return 1; |
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104 | } |
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105 | |
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106 | summary.count = 0; |
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107 | summary.exec = 0; |
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108 | summary.symbols = 0; |
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109 | rtems_rtl_chain_iterate (&rtl->objects, |
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110 | rtems_rtl_obj_summary_iterator, |
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111 | &summary); |
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112 | /* |
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113 | * Currently does not include the name strings in the obj struct. |
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114 | */ |
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115 | total_memory = |
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116 | sizeof (*rtl) + (summary.count * sizeof (rtems_rtl_obj)) + |
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117 | summary.exec + summary.symbols; |
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118 | |
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119 | rtems_printf (printer, "Runtime Linker Status:\n"); |
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120 | rtems_printf (printer, " paths: %s\n", rtl->paths); |
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121 | rtems_printf (printer, " objects: %d\n", summary.count); |
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122 | rtems_printf (printer, " total memory: %zi\n", total_memory); |
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123 | rtems_printf (printer, " exec memory: %zi\n", summary.exec); |
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124 | rtems_printf (printer, " sym memory: %zi\n", summary.symbols); |
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125 | rtems_printf (printer, " symbols: %d\n", rtems_rtl_count_symbols (rtl)); |
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126 | |
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127 | rtems_rtl_unlock (); |
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128 | |
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129 | return 0; |
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130 | } |
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131 | |
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132 | /** |
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133 | * Object print data. |
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134 | */ |
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135 | typedef struct |
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136 | { |
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137 | const rtems_printer* printer; /**< The RTEMS printer. */ |
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138 | rtems_rtl_data* rtl; /**< The RTL data. */ |
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139 | int indent; /**< Spaces to indent. */ |
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140 | bool oname; /**< Print object names. */ |
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141 | bool names; /**< Print details of all names. */ |
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142 | bool stats; /**< Print stats. */ |
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143 | bool memory_map; /**< Print the memory map. */ |
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144 | bool symbols; /**< Print the global symbols. */ |
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145 | bool dependencies; /**< Print any dependencies. */ |
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146 | bool base; /**< Include the base object file. */ |
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147 | const char* re_name; /**< Name regx to filter on. */ |
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148 | const char* re_symbol; /**< Symbol regx to filter on. */ |
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149 | } rtems_rtl_obj_print; |
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150 | |
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151 | /** |
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152 | * Parse an argument. |
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153 | */ |
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154 | static bool |
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155 | rtems_rtl_parse_opt (const char opt, int argc, char *argv[]) |
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156 | { |
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157 | size_t arg; |
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158 | for (arg = 1; arg < argc; ++arg) |
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159 | { |
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160 | if (argv[arg][0] == '-') |
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161 | { |
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162 | size_t len = strlen (argv[arg]); |
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163 | size_t i; |
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164 | for (i = 1; i < len; ++i) |
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165 | if (argv[arg][i] == opt) |
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166 | return true; |
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167 | } |
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168 | } |
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169 | return false; |
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170 | } |
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171 | |
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172 | static bool |
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173 | rtems_rtl_check_opts (const rtems_printer* printer, |
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174 | const char* opts, |
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175 | int argc, |
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176 | char* argv[]) |
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177 | { |
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178 | size_t olen = strlen (opts); |
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179 | size_t arg; |
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180 | for (arg = 1; arg < argc; ++arg) |
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181 | { |
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182 | if (argv[arg][0] == '-') |
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183 | { |
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184 | size_t len = strlen (argv[arg]); |
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185 | size_t i; |
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186 | for (i = 1; i < len; ++i) |
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187 | { |
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188 | bool found = false; |
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189 | size_t o; |
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190 | for (o = 0; o < olen; ++o) |
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191 | { |
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192 | if (argv[arg][i] == opts[o]) |
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193 | { |
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194 | found = true; |
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195 | break; |
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196 | } |
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197 | } |
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198 | if (!found) |
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199 | { |
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200 | rtems_printf (printer, "error: invalid option: %c (%s)\n", |
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201 | argv[arg][i], argv[arg]); |
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202 | return false; |
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203 | } |
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204 | } |
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205 | } |
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206 | } |
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207 | return true; |
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208 | } |
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209 | |
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210 | static ssize_t |
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211 | rtems_rtl_parse_arg_index (const char opt, |
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212 | const char* skip_opts, |
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213 | int argc, |
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214 | char* argv[]) |
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215 | { |
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216 | ssize_t arg; |
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217 | for (arg = 1; arg < argc; ++arg) |
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218 | { |
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219 | if (argv[arg][0] == '-') |
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220 | { |
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221 | /* |
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222 | * We can check the next char because there has to be a valid char or a |
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223 | * nul. |
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224 | */ |
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225 | if (argv[arg][1] != '\0') |
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226 | { |
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227 | size_t len = skip_opts != NULL ? strlen (skip_opts) : 0; |
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228 | size_t i; |
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229 | for (i = 0; i < len; ++i) |
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230 | { |
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231 | if (skip_opts[i] == argv[arg][1]) |
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232 | { |
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233 | ++arg; |
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234 | break; |
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235 | } |
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236 | } |
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237 | } |
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238 | } |
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239 | else |
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240 | { |
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241 | if (opt == ' ') |
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242 | return arg; |
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243 | } |
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244 | /* |
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245 | * Is this an option and does it match what we are looking for? |
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246 | */ |
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247 | if (argv[arg][0] == '-' && argv[arg][1] == opt && arg < argc) |
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248 | return arg + 1; |
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249 | } |
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250 | return -1; |
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251 | } |
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252 | |
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253 | static const char* |
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254 | rtems_rtl_parse_arg (const char opt, |
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255 | const char* skip_opts, |
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256 | int argc, |
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257 | char* argv[]) |
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258 | { |
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259 | ssize_t arg = rtems_rtl_parse_arg_index (opt, skip_opts, argc, argv); |
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260 | if (arg < 0) |
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261 | return NULL; |
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262 | return argv[arg]; |
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263 | } |
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264 | |
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265 | /** |
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266 | * Regx matching. |
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267 | */ |
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268 | static bool |
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269 | rtems_rtl_regx_compile (const rtems_printer* printer, |
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270 | const char* label, |
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271 | regex_t* rege, |
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272 | const char* expression) |
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273 | { |
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274 | int r = regcomp (rege, expression, REG_EXTENDED | REG_NOSUB); |
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275 | if (r != 0) |
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276 | { |
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277 | char rerror[128]; |
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278 | regerror (r, rege, rerror, sizeof(rerror)); |
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279 | rtems_printf (printer, "error: %s: %s\n", label, rerror); |
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280 | return false; |
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281 | } |
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282 | return true; |
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283 | } |
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284 | |
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285 | static int |
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286 | rtems_rtl_regx_match (const rtems_printer* printer, |
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287 | const char* label, |
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288 | regex_t* rege, |
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289 | const char* string) |
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290 | { |
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291 | int r = regexec (rege, string, 0, NULL, 0); |
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292 | if (r != 0 && r != REG_NOMATCH) |
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293 | { |
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294 | char rerror[128]; |
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295 | regerror (r, rege, rerror, sizeof(rerror)); |
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296 | rtems_printf (printer, "error: %s: %s\n", label, rerror); |
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297 | regfree (rege); |
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298 | return -1; |
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299 | } |
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300 | return r == 0 ? 1 : 0; |
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301 | } |
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302 | |
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303 | /** |
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304 | * Print the obj name. |
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305 | */ |
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306 | static void |
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307 | rtems_rtl_print_obj_name (const rtems_rtl_obj_print* print, rtems_rtl_obj* obj) |
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308 | { |
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309 | rtems_printf (print->printer, "%-*c", print->indent, ' '); |
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310 | if (rtems_rtl_obj_aname (obj) != NULL) |
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311 | rtems_printf (print->printer, "%s:", rtems_rtl_obj_aname (obj)); |
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312 | rtems_printf (print->printer, "%s\n", rtems_rtl_obj_oname (obj)); |
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313 | } |
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314 | |
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315 | /** |
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316 | * Print symbols. |
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317 | */ |
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318 | static bool |
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319 | rtems_rtl_print_symbols (rtems_rtl_obj_print* print, |
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320 | rtems_rtl_obj* obj, |
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321 | int indent, |
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322 | bool show_name) |
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323 | { |
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324 | regex_t rege; |
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325 | int max_len = 0; |
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326 | int s; |
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327 | |
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328 | if (print->re_symbol != NULL && |
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329 | !rtems_rtl_regx_compile (print->printer, |
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330 | "symbol filter", |
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331 | ®e, print->re_symbol)) |
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332 | { |
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333 | return false; |
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334 | } |
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335 | |
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336 | for (s = 0; s < obj->global_syms; ++s) |
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337 | { |
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338 | const char* sym = obj->global_table[s].name; |
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339 | int len; |
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340 | |
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341 | if (print->re_symbol != NULL) |
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342 | { |
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343 | int r = rtems_rtl_regx_match (print->printer, "symbol match", ®e, sym); |
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344 | if (r < 0) |
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345 | return false; |
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346 | if (!r) |
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347 | continue; |
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348 | } |
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349 | |
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350 | len = strlen (obj->global_table[s].name); |
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351 | if (len > max_len) |
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352 | max_len = len; |
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353 | } |
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354 | |
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355 | for (s = 0; s < obj->global_syms; ++s) |
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356 | { |
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357 | const char* sym = obj->global_table[s].name; |
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358 | if (print->re_symbol != NULL) |
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359 | { |
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360 | int r = rtems_rtl_regx_match (print->printer, "symbol match", ®e, sym); |
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361 | if (r < 0) |
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362 | return false; |
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363 | if (r == 0) |
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364 | continue; |
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365 | } |
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366 | if (show_name) |
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367 | { |
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368 | show_name = false; |
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369 | rtems_rtl_print_obj_name (print, obj); |
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370 | } |
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371 | rtems_printf (print->printer, "%-*c%-*s = %p\n", indent + 2, ' ', |
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372 | max_len, sym, obj->global_table[s].value); |
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373 | } |
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374 | |
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375 | regfree (®e); |
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376 | |
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377 | return true; |
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378 | } |
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379 | |
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380 | /** |
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381 | * Dependencies printer. |
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382 | */ |
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383 | typedef struct |
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384 | { |
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385 | const rtems_rtl_obj_print* print; /**< The print data. */ |
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386 | bool first; /**< Is this the first line printed. */ |
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387 | bool show_name; /**< Show the object name. */ |
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388 | size_t indent; /**< The indent. */ |
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389 | } rtems_rtl_dep_data; |
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390 | |
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391 | static bool |
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392 | rtems_rtl_dependencies (rtems_rtl_obj* obj, rtems_rtl_obj* dependent, void* data) |
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393 | { |
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394 | rtems_rtl_dep_data* dd = (rtems_rtl_dep_data*) data; |
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395 | if (dd->first) |
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396 | { |
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397 | dd->first = false; |
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398 | if (dd->show_name) |
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399 | { |
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400 | dd->show_name = false; |
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401 | rtems_rtl_print_obj_name (dd->print, obj); |
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402 | } |
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403 | rtems_printf (dd->print->printer, "%-*cdependencies : ", dd->indent, ' '); |
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404 | dd->indent += strlen ("dependencies :"); |
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405 | } |
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406 | else |
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407 | { |
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408 | rtems_printf (dd->print->printer, "\n%-*c: ", (int) dd->indent, ' '); |
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409 | } |
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410 | rtems_printf (dd->print->printer, "%s", dependent->oname); |
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411 | return false; |
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412 | } |
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413 | |
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414 | /** |
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415 | * Object printer. |
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416 | */ |
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417 | static bool |
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418 | rtems_rtl_obj_printer (rtems_rtl_obj_print* print, rtems_rtl_obj* obj) |
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419 | { |
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420 | char flags_str[33]; |
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421 | int indent = print->indent + 1; |
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422 | bool show_name = true; |
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423 | |
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424 | /* |
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425 | * Skip the base module unless asked to show it. |
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426 | */ |
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427 | if (!print->base && (obj == print->rtl->base)) |
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428 | return true; |
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429 | |
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430 | if (print->re_name != NULL) |
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431 | { |
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432 | regex_t rege; |
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433 | int r = 0; |
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434 | |
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435 | if (!rtems_rtl_regx_compile (print->printer, |
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436 | "name filter", |
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437 | ®e, print->re_name)) |
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438 | { |
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439 | return false; |
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440 | } |
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441 | |
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442 | if (rtems_rtl_obj_aname (obj) != NULL) |
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443 | { |
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444 | r = rtems_rtl_regx_match (print->printer, |
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445 | "aname match", |
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446 | ®e, |
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447 | rtems_rtl_obj_aname (obj)); |
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448 | if (r < 0) |
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449 | return false; |
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450 | } |
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451 | |
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452 | if (r == 0) |
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453 | { |
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454 | r = rtems_rtl_regx_match (print->printer, |
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455 | "oname match", |
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456 | ®e, |
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457 | rtems_rtl_obj_oname (obj)); |
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458 | if (r < 0) |
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459 | return false; |
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460 | } |
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461 | |
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462 | regfree (®e); |
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463 | |
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464 | if (r == 0) |
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465 | return true; |
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466 | } |
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467 | |
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468 | if (print->names || print->memory_map || print->stats || |
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469 | (!print->names && !print->memory_map && !print->stats && |
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470 | !print->symbols && !print->dependencies)) |
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471 | { |
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472 | show_name = false; |
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473 | rtems_rtl_print_obj_name (print, obj); |
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474 | } |
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475 | |
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476 | if (print->names) |
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477 | { |
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478 | rtems_printf (print->printer, |
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479 | "%-*cfile name : %s\n", |
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480 | indent, ' ', rtems_rtl_obj_fname (obj)); |
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481 | rtems_printf (print->printer, |
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482 | "%-*carchive name : %s\n", |
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483 | indent, ' ', rtems_rtl_obj_aname (obj)); |
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484 | strcpy (flags_str, "--"); |
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485 | if (obj->flags & RTEMS_RTL_OBJ_LOCKED) |
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486 | flags_str[0] = 'L'; |
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487 | if (obj->flags & RTEMS_RTL_OBJ_UNRESOLVED) |
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488 | flags_str[1] = 'U'; |
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489 | rtems_printf (print->printer, |
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490 | "%-*cflags : %s\n", indent, ' ', flags_str); |
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491 | rtems_printf (print->printer, |
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492 | "%-*cfile offset : %" PRIdoff_t "\n", indent, ' ', obj->ooffset); |
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493 | rtems_printf (print->printer, |
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494 | "%-*cfile size : %zi\n", indent, ' ', obj->fsize); |
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495 | } |
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496 | if (print->memory_map) |
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497 | { |
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498 | rtems_printf (print->printer, |
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499 | "%-*cexec size : %zi\n", indent, ' ', obj->exec_size); |
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500 | rtems_printf (print->printer, |
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501 | "%-*ctext base : %p (%zi)\n", indent, ' ', |
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502 | obj->text_base, obj->text_size); |
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503 | rtems_printf (print->printer, |
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504 | "%-*cconst base : %p (%zi)\n", indent, ' ', |
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505 | obj->const_base, obj->const_size); |
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506 | rtems_printf (print->printer, |
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507 | "%-*cdata base : %p (%zi)\n", indent, ' ', |
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508 | obj->data_base, obj->data_size); |
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509 | rtems_printf (print->printer, |
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510 | "%-*cbss base : %p (%zi)\n", indent, ' ', |
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511 | obj->bss_base, obj->bss_size); |
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512 | } |
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513 | if (print->stats) |
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514 | { |
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515 | rtems_printf (print->printer, "%-*cunresolved : %zu\n", indent, ' ', obj->unresolved); |
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516 | rtems_printf (print->printer, "%-*cusers : %zu\n", indent, ' ', obj->users); |
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517 | rtems_printf (print->printer, "%-*creferences : %zu\n", indent, ' ', obj->refs); |
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518 | rtems_printf (print->printer, "%-*csymbols : %zi\n", indent, ' ', obj->global_syms); |
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519 | rtems_printf (print->printer, "%-*csymbol memory : %zi\n", indent, ' ', obj->global_size); |
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520 | } |
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521 | if (print->symbols) |
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522 | { |
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523 | if (!rtems_rtl_print_symbols (print, obj, indent, show_name)) |
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524 | return false; |
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525 | } |
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526 | if (print->dependencies) |
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527 | { |
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528 | rtems_rtl_dep_data dd = { |
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529 | .print = print, |
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530 | .first = true, |
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531 | .show_name = show_name, |
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532 | .indent = indent |
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533 | }; |
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534 | rtems_rtl_obj_iterate_dependents (obj, rtems_rtl_dependencies, &dd); |
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535 | if (!dd.first) |
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536 | rtems_printf (print->printer, "\n"); |
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537 | } |
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538 | return true; |
---|
539 | } |
---|
540 | |
---|
541 | /** |
---|
542 | * Object unresolved symbols printer. |
---|
543 | */ |
---|
544 | static bool |
---|
545 | rtems_rtl_unresolved_printer (rtems_rtl_unresolv_rec* rec, |
---|
546 | void* data) |
---|
547 | { |
---|
548 | rtems_rtl_obj_print* print = (rtems_rtl_obj_print*) data; |
---|
549 | if (rec->type == rtems_rtl_unresolved_symbol) |
---|
550 | rtems_printf (print->printer, |
---|
551 | "%-*c%s\n", print->indent + 2, ' ', rec->rec.name.name); |
---|
552 | return false; |
---|
553 | } |
---|
554 | |
---|
555 | /** |
---|
556 | * Object print iterator. |
---|
557 | */ |
---|
558 | static bool |
---|
559 | rtems_rtl_obj_print_iterator (rtems_chain_node* node, void* data) |
---|
560 | { |
---|
561 | rtems_rtl_obj_print* print = data; |
---|
562 | rtems_rtl_obj* obj = (rtems_rtl_obj*) node; |
---|
563 | return rtems_rtl_obj_printer (print, obj); |
---|
564 | } |
---|
565 | |
---|
566 | int |
---|
567 | rtems_rtl_shell_list (const rtems_printer* printer, int argc, char* argv[]) |
---|
568 | { |
---|
569 | rtems_rtl_obj_print print = { 0 }; |
---|
570 | if (!rtems_rtl_check_opts (printer, "nlmsdb", argc, argv)) |
---|
571 | return 1; |
---|
572 | print.printer = printer; |
---|
573 | print.indent = 1; |
---|
574 | print.oname = true; |
---|
575 | print.names = rtems_rtl_parse_opt ('n', argc, argv); |
---|
576 | print.stats = rtems_rtl_parse_opt ('l', argc, argv);; |
---|
577 | print.memory_map = rtems_rtl_parse_opt ('m', argc, argv);; |
---|
578 | print.symbols = rtems_rtl_parse_opt ('s', argc, argv); |
---|
579 | print.dependencies = rtems_rtl_parse_opt ('d', argc, argv);; |
---|
580 | print.base = rtems_rtl_parse_opt ('b', argc, argv);; |
---|
581 | print.re_name = rtems_rtl_parse_arg (' ', NULL, argc, argv); |
---|
582 | print.re_symbol = NULL; |
---|
583 | print.rtl = rtems_rtl_lock (); |
---|
584 | if (print.rtl == NULL) |
---|
585 | { |
---|
586 | rtems_printf (print.printer, "error: cannot lock the linker\n"); |
---|
587 | return 1; |
---|
588 | } |
---|
589 | rtems_rtl_chain_iterate (&print.rtl->objects, |
---|
590 | rtems_rtl_obj_print_iterator, |
---|
591 | &print); |
---|
592 | rtems_rtl_unlock (); |
---|
593 | return 0; |
---|
594 | } |
---|
595 | |
---|
596 | int |
---|
597 | rtems_rtl_shell_sym (const rtems_printer* printer, int argc, char* argv[]) |
---|
598 | { |
---|
599 | rtems_rtl_obj_print print = { 0 }; |
---|
600 | if (!rtems_rtl_check_opts (printer, "buo", argc, argv)) |
---|
601 | return 1; |
---|
602 | print.printer = printer; |
---|
603 | print.indent = 1; |
---|
604 | print.oname = true; |
---|
605 | print.names = false; |
---|
606 | print.stats = false; |
---|
607 | print.memory_map = false; |
---|
608 | print.symbols = !rtems_rtl_parse_opt ('u', argc, argv);; |
---|
609 | print.dependencies = false; |
---|
610 | print.base = rtems_rtl_parse_opt ('b', argc, argv); |
---|
611 | print.re_name = rtems_rtl_parse_arg ('o', NULL, argc, argv);; |
---|
612 | print.re_symbol = rtems_rtl_parse_arg (' ', "ou", argc, argv); |
---|
613 | print.rtl = rtems_rtl_lock (); |
---|
614 | if (print.rtl == NULL) |
---|
615 | { |
---|
616 | rtems_printf (print.printer, "error: cannot lock the linker\n"); |
---|
617 | return 1; |
---|
618 | } |
---|
619 | if (print.symbols) |
---|
620 | { |
---|
621 | rtems_rtl_chain_iterate (&print.rtl->objects, |
---|
622 | rtems_rtl_obj_print_iterator, |
---|
623 | &print); |
---|
624 | } |
---|
625 | if (rtems_rtl_parse_opt ('u', argc, argv)) |
---|
626 | { |
---|
627 | rtems_printf (printer, "Unresolved:\n"); |
---|
628 | rtems_rtl_unresolved_iterate (rtems_rtl_unresolved_printer, &print); |
---|
629 | } |
---|
630 | rtems_rtl_unlock (); |
---|
631 | return 0; |
---|
632 | } |
---|
633 | |
---|
634 | int |
---|
635 | rtems_rtl_shell_object (const rtems_printer* printer, int argc, char* argv[]) |
---|
636 | { |
---|
637 | size_t arg; |
---|
638 | |
---|
639 | --argc; |
---|
640 | ++argv; |
---|
641 | |
---|
642 | for (arg = 0; arg < argc; ++arg) |
---|
643 | { |
---|
644 | if (argv[arg][0] == '-') |
---|
645 | { |
---|
646 | switch (argv[arg][1]) |
---|
647 | { |
---|
648 | case 'h': |
---|
649 | case '?': |
---|
650 | rtems_printf (printer, "obj commands:\n"); |
---|
651 | rtems_printf (printer, " load <file>\n"); |
---|
652 | rtems_printf (printer, " unload <file>\n"); |
---|
653 | break; |
---|
654 | default: |
---|
655 | rtems_printf (printer, "error: invalid option: %s\n", argv[arg]); |
---|
656 | return 1; |
---|
657 | } |
---|
658 | } |
---|
659 | else |
---|
660 | { |
---|
661 | break; |
---|
662 | } |
---|
663 | } |
---|
664 | |
---|
665 | if (arg >= argc) |
---|
666 | { |
---|
667 | rtems_printf (printer, "error: no obj command\n"); |
---|
668 | return 1; |
---|
669 | } |
---|
670 | |
---|
671 | if (strcmp (argv[arg], "load") == 0) |
---|
672 | { |
---|
673 | void* handle; |
---|
674 | int unresolved; |
---|
675 | |
---|
676 | ++arg; |
---|
677 | if (arg >= argc) |
---|
678 | { |
---|
679 | rtems_printf (printer, "error: no object file to load\n"); |
---|
680 | return 1; |
---|
681 | } |
---|
682 | |
---|
683 | handle = dlopen (argv[arg], RTLD_NOW | RTLD_GLOBAL); |
---|
684 | if (handle == NULL) |
---|
685 | { |
---|
686 | rtems_printf (printer, "error: load: %s: %s\n", argv[arg], dlerror ()); |
---|
687 | return 1; |
---|
688 | } |
---|
689 | |
---|
690 | if (dlinfo (RTLD_SELF, RTLD_DI_UNRESOLVED, &unresolved) < 0) |
---|
691 | { |
---|
692 | rtems_printf (printer, "error: %s: %s\n", argv[arg], dlerror ()); |
---|
693 | return 1; |
---|
694 | } |
---|
695 | |
---|
696 | if (unresolved != 0) |
---|
697 | { |
---|
698 | rtems_printf (printer, "warning: unresolved symbols present\n"); |
---|
699 | return 1; |
---|
700 | } |
---|
701 | } |
---|
702 | else if (strcmp (argv[arg], "unload") == 0) |
---|
703 | { |
---|
704 | rtems_rtl_data* rtl; |
---|
705 | rtems_rtl_obj* obj; |
---|
706 | |
---|
707 | ++arg; |
---|
708 | if (arg >= argc) |
---|
709 | { |
---|
710 | rtems_printf (printer, "error: no object file to load\n"); |
---|
711 | return 1; |
---|
712 | } |
---|
713 | |
---|
714 | rtl = rtems_rtl_lock (); |
---|
715 | if (rtl == NULL) |
---|
716 | { |
---|
717 | rtems_printf (printer, "error: cannot lock RTL\n"); |
---|
718 | return 1; |
---|
719 | } |
---|
720 | |
---|
721 | obj = rtems_rtl_find_obj (argv[arg]); |
---|
722 | if (obj == NULL) |
---|
723 | { |
---|
724 | rtems_rtl_unlock (); |
---|
725 | rtems_printf (printer, "error: unload: %s: %s\n", argv[arg], dlerror ()); |
---|
726 | return 1; |
---|
727 | } |
---|
728 | |
---|
729 | if (!rtems_rtl_unload (obj)) |
---|
730 | { |
---|
731 | rtems_rtl_unlock (); |
---|
732 | rtems_printf (printer, "error: unload: %s: %s\n", argv[arg], dlerror ()); |
---|
733 | return 1; |
---|
734 | } |
---|
735 | |
---|
736 | rtems_rtl_unlock (); |
---|
737 | } |
---|
738 | else |
---|
739 | { |
---|
740 | rtems_printf (printer, "error: unknown obj command: %s\n", argv[arg]); |
---|
741 | return 1; |
---|
742 | } |
---|
743 | |
---|
744 | return 0; |
---|
745 | } |
---|
746 | |
---|
747 | int |
---|
748 | rtems_rtl_shell_archive (const rtems_printer* printer, int argc, char* argv[]) |
---|
749 | { |
---|
750 | rtems_rtl_data* rtl; |
---|
751 | rtems_chain_node* node; |
---|
752 | const char* re_name; |
---|
753 | bool details; |
---|
754 | bool symbols; |
---|
755 | bool duplicates; |
---|
756 | regex_t rege; |
---|
757 | |
---|
758 | if (!rtems_rtl_check_opts (printer, "dsl", argc, argv)) |
---|
759 | return 1; |
---|
760 | |
---|
761 | details = rtems_rtl_parse_opt ('l', argc, argv); |
---|
762 | symbols = rtems_rtl_parse_opt ('s', argc, argv); |
---|
763 | duplicates = rtems_rtl_parse_opt ('d', argc, argv); |
---|
764 | |
---|
765 | re_name = rtems_rtl_parse_arg (' ', NULL, argc, argv); |
---|
766 | |
---|
767 | if (re_name != NULL) |
---|
768 | { |
---|
769 | if (!rtems_rtl_regx_compile (printer, |
---|
770 | "name filter", |
---|
771 | ®e, |
---|
772 | re_name)) |
---|
773 | { |
---|
774 | return false; |
---|
775 | } |
---|
776 | } |
---|
777 | |
---|
778 | rtl = rtems_rtl_lock (); |
---|
779 | if (rtl == NULL) |
---|
780 | { |
---|
781 | rtems_printf (printer, "error: cannot lock the linker\n"); |
---|
782 | return 1; |
---|
783 | } |
---|
784 | |
---|
785 | node = rtems_chain_first (&rtl->archives.archives); |
---|
786 | |
---|
787 | while (!rtems_chain_is_tail (&rtl->archives.archives, node)) |
---|
788 | { |
---|
789 | #define SYM_DUPLICATE (1 << ((8 * sizeof (size_t)) - 1)) |
---|
790 | |
---|
791 | rtems_rtl_archive* archive = (rtems_rtl_archive*) node; |
---|
792 | |
---|
793 | if (re_name != NULL) |
---|
794 | { |
---|
795 | int r = rtems_rtl_regx_match (printer, |
---|
796 | "name match", |
---|
797 | ®e, |
---|
798 | archive->name); |
---|
799 | if (r < 0) |
---|
800 | { |
---|
801 | rtems_rtl_unlock (); |
---|
802 | return false; |
---|
803 | } |
---|
804 | |
---|
805 | if (r == 0) |
---|
806 | { |
---|
807 | node = rtems_chain_next (node); |
---|
808 | continue; |
---|
809 | } |
---|
810 | } |
---|
811 | |
---|
812 | rtems_printf (printer, "%s%c\n", |
---|
813 | archive->name, |
---|
814 | details | symbols | duplicates ? ':' : ' '); |
---|
815 | |
---|
816 | if (details) |
---|
817 | { |
---|
818 | rtems_printf (printer, " size : %zu\n", archive->size); |
---|
819 | rtems_printf (printer, " symbols : %zu\n", archive->symbols.entries); |
---|
820 | rtems_printf (printer, " refs : %zu\n", archive->refs); |
---|
821 | rtems_printf (printer, " flags : %" PRIx32 "\n", archive->flags); |
---|
822 | } |
---|
823 | |
---|
824 | if (symbols) |
---|
825 | { |
---|
826 | const char* symbol = archive->symbols.names; |
---|
827 | int indent = 0; |
---|
828 | size_t s; |
---|
829 | |
---|
830 | rtems_printf (printer, " symbols :"); |
---|
831 | |
---|
832 | for (s = 0; s < archive->symbols.entries; ++s) |
---|
833 | { |
---|
834 | if (archive->symbols.symbols != NULL) |
---|
835 | symbol = archive->symbols.symbols[s].label; |
---|
836 | |
---|
837 | rtems_printf (printer, "%-*c%s\n", indent, ' ', symbol); |
---|
838 | indent = 12; |
---|
839 | |
---|
840 | if (archive->symbols.symbols == NULL) |
---|
841 | symbol += strlen (symbol) + 1; |
---|
842 | } |
---|
843 | |
---|
844 | if (indent == 0) |
---|
845 | rtems_printf (printer, "\n"); |
---|
846 | } |
---|
847 | |
---|
848 | if (duplicates) |
---|
849 | { |
---|
850 | rtems_chain_node* match_node; |
---|
851 | int indent = 0; |
---|
852 | bool show_dups = true; |
---|
853 | |
---|
854 | match_node = rtems_chain_first (&rtl->archives.archives); |
---|
855 | |
---|
856 | while (!rtems_chain_is_tail (&rtl->archives.archives, match_node)) |
---|
857 | { |
---|
858 | rtems_rtl_archive* match_archive = (rtems_rtl_archive*) match_node; |
---|
859 | const char* symbol = archive->symbols.names; |
---|
860 | size_t s; |
---|
861 | |
---|
862 | for (s = 0; s < archive->symbols.entries; ++s) |
---|
863 | { |
---|
864 | if (archive->symbols.symbols == NULL || |
---|
865 | (archive->symbols.symbols[s].entry & SYM_DUPLICATE) == 0) |
---|
866 | { |
---|
867 | const char* match_symbol = match_archive->symbols.names; |
---|
868 | size_t ms; |
---|
869 | |
---|
870 | if (archive->symbols.symbols != NULL) |
---|
871 | symbol = archive->symbols.symbols[s].label; |
---|
872 | |
---|
873 | for (ms = 0; ms < match_archive->symbols.entries; ++ms) |
---|
874 | { |
---|
875 | if (match_archive->symbols.symbols != NULL) |
---|
876 | match_symbol = match_archive->symbols.symbols[ms].label; |
---|
877 | |
---|
878 | if (symbol != match_symbol && strcmp (symbol, match_symbol) == 0) |
---|
879 | { |
---|
880 | if (show_dups) |
---|
881 | { |
---|
882 | show_dups = false; |
---|
883 | rtems_printf (printer, " dups :"); |
---|
884 | } |
---|
885 | rtems_printf (printer, "%-*c%s (%s)\n", |
---|
886 | indent, ' ', symbol, archive->name); |
---|
887 | indent = 12; |
---|
888 | |
---|
889 | if (match_archive->symbols.symbols != NULL) |
---|
890 | match_archive->symbols.symbols[ms].entry |= SYM_DUPLICATE; |
---|
891 | } |
---|
892 | |
---|
893 | if (match_archive->symbols.symbols == NULL) |
---|
894 | match_symbol += strlen (match_symbol) + 1; |
---|
895 | } |
---|
896 | } |
---|
897 | |
---|
898 | if (archive->symbols.symbols == NULL) |
---|
899 | symbol += strlen (symbol) + 1; |
---|
900 | } |
---|
901 | |
---|
902 | match_node = rtems_chain_next (match_node); |
---|
903 | } |
---|
904 | |
---|
905 | if (indent == 0) |
---|
906 | rtems_printf (printer, "\n"); |
---|
907 | } |
---|
908 | |
---|
909 | node = rtems_chain_next (node); |
---|
910 | } |
---|
911 | |
---|
912 | regfree (®e); |
---|
913 | |
---|
914 | node = rtems_chain_first (&rtl->archives.archives); |
---|
915 | |
---|
916 | while (!rtems_chain_is_tail (&rtl->archives.archives, node)) |
---|
917 | { |
---|
918 | rtems_rtl_archive* archive = (rtems_rtl_archive*) node; |
---|
919 | if (archive->symbols.symbols != NULL) |
---|
920 | { |
---|
921 | size_t s; |
---|
922 | for (s = 0; s < archive->symbols.entries; ++s) |
---|
923 | archive->symbols.symbols[s].entry &= ~SYM_DUPLICATE; |
---|
924 | } |
---|
925 | node = rtems_chain_next (node); |
---|
926 | } |
---|
927 | |
---|
928 | rtems_rtl_unlock (); |
---|
929 | |
---|
930 | return 0; |
---|
931 | } |
---|
932 | |
---|
933 | int |
---|
934 | rtems_rtl_shell_call (const rtems_printer* printer, int argc, char* argv[]) |
---|
935 | { |
---|
936 | #define CALL_ARG_COUNT (4) |
---|
937 | |
---|
938 | typedef void (*csig_none)(void); |
---|
939 | typedef void (*csig_argv)(int argc, const char* argv[]); |
---|
940 | typedef void (*csig_s)(const char* str); |
---|
941 | typedef void (*csig_u)(unsigned int i1, unsigned int i2, unsigned int i3, unsigned int i4); |
---|
942 | typedef void (*csig_i)(int i1, int i2, int i3, int i4); |
---|
943 | |
---|
944 | union { |
---|
945 | char s[64 + 1]; |
---|
946 | unsigned int u[CALL_ARG_COUNT]; |
---|
947 | int i[CALL_ARG_COUNT]; |
---|
948 | } values = { 0 }; |
---|
949 | bool keep_locked = false; |
---|
950 | bool args_s = false; |
---|
951 | bool args_i = false; |
---|
952 | bool args_u = false; |
---|
953 | ssize_t label; |
---|
954 | rtems_rtl_data* rtl; |
---|
955 | rtems_rtl_obj_sym* sym; |
---|
956 | rtems_rtl_obj* obj; |
---|
957 | |
---|
958 | |
---|
959 | if (!rtems_rtl_check_opts (printer, "lsui", argc, argv)) |
---|
960 | return 1; |
---|
961 | |
---|
962 | keep_locked = rtems_rtl_parse_opt ('l', argc, argv); |
---|
963 | args_s = rtems_rtl_parse_opt ('s', argc, argv); |
---|
964 | args_u = rtems_rtl_parse_opt ('u', argc, argv); |
---|
965 | args_i = rtems_rtl_parse_opt ('i', argc, argv); |
---|
966 | |
---|
967 | if (args_s || args_u || args_i) |
---|
968 | { |
---|
969 | int c = 0; |
---|
970 | c += args_s ? 1 : 0; |
---|
971 | c += args_u ? 1 : 0; |
---|
972 | c += args_i ? 1 : 0; |
---|
973 | if (c > 1) |
---|
974 | { |
---|
975 | rtems_printf (printer, |
---|
976 | "error: too many options, only one -sul at a time\n"); |
---|
977 | return 1; |
---|
978 | } |
---|
979 | } |
---|
980 | |
---|
981 | label = rtems_rtl_parse_arg_index (' ', NULL, argc, argv); |
---|
982 | if (label < 0) |
---|
983 | { |
---|
984 | rtems_printf (printer, "error: no symbol found on command line\n"); |
---|
985 | return 1; |
---|
986 | } |
---|
987 | |
---|
988 | if ((label + 1) < argc) |
---|
989 | { |
---|
990 | if (args_s) |
---|
991 | { |
---|
992 | size_t arg; |
---|
993 | for (arg = label + 1; arg < argc; ++arg) |
---|
994 | { |
---|
995 | size_t o = strlen (values.s); |
---|
996 | if (strlen (argv[arg]) + 1 >= (sizeof (values.s) - o)) |
---|
997 | { |
---|
998 | rtems_printf (printer, "error: string args too big\n"); |
---|
999 | return 1; |
---|
1000 | } |
---|
1001 | if (o > 0) |
---|
1002 | values.s[o++] = ' '; |
---|
1003 | strcat (values.s, argv[arg]); |
---|
1004 | } |
---|
1005 | } |
---|
1006 | else if (args_u || args_i) |
---|
1007 | { |
---|
1008 | size_t arg; |
---|
1009 | size_t i; |
---|
1010 | if (argc > (label + 1 + CALL_ARG_COUNT)) |
---|
1011 | { |
---|
1012 | rtems_printf (printer, "error: too many args\n"); |
---|
1013 | return 1; |
---|
1014 | } |
---|
1015 | for (i = 0, arg = label + 1; arg < argc; ++arg) |
---|
1016 | { |
---|
1017 | if (args_u) |
---|
1018 | values.u[i] = strtoul (argv[arg], 0, 0); |
---|
1019 | else |
---|
1020 | values.i[i] = strtol (argv[arg], 0, 0); |
---|
1021 | ++i; |
---|
1022 | } |
---|
1023 | } |
---|
1024 | } |
---|
1025 | |
---|
1026 | rtl = rtems_rtl_lock (); |
---|
1027 | if (rtl == NULL) |
---|
1028 | { |
---|
1029 | rtems_printf (printer, "error: cannot lock the linker\n"); |
---|
1030 | return 1; |
---|
1031 | } |
---|
1032 | |
---|
1033 | sym = rtems_rtl_symbol_global_find (argv[label]); |
---|
1034 | if (sym == NULL) |
---|
1035 | { |
---|
1036 | rtems_rtl_unlock (); |
---|
1037 | rtems_printf (printer, "error: symbol not found: %s\n", argv[label]); |
---|
1038 | return 1; |
---|
1039 | } |
---|
1040 | |
---|
1041 | obj = rtems_rtl_find_obj_with_symbol (sym); |
---|
1042 | if (obj == NULL) |
---|
1043 | { |
---|
1044 | rtems_rtl_unlock (); |
---|
1045 | rtems_printf (printer, "error: symbol obj not found: %s\n", argv[label]); |
---|
1046 | return 1; |
---|
1047 | } |
---|
1048 | |
---|
1049 | if (!rtems_rtl_obj_text_inside (obj, (const void*) sym->value)) |
---|
1050 | { |
---|
1051 | rtems_rtl_unlock (); |
---|
1052 | rtems_printf (printer, "error: symbol not in obj text: %s\n", argv[label]); |
---|
1053 | return 1; |
---|
1054 | } |
---|
1055 | |
---|
1056 | /* |
---|
1057 | * Lock the object file while it is being called. |
---|
1058 | */ |
---|
1059 | rtems_rtl_obj_inc_reference (obj); |
---|
1060 | |
---|
1061 | rtems_rtl_unlock (); |
---|
1062 | |
---|
1063 | if (args_s) |
---|
1064 | { |
---|
1065 | csig_s call = (csig_s) sym->value; |
---|
1066 | call (values.s); |
---|
1067 | } |
---|
1068 | else if (args_u) |
---|
1069 | { |
---|
1070 | csig_u call = (csig_u) sym->value; |
---|
1071 | call (values.u[0], values.u[1], values.u[2], values.u[3]); |
---|
1072 | } |
---|
1073 | else if (args_i) |
---|
1074 | { |
---|
1075 | csig_i call = (csig_i) sym->value; |
---|
1076 | call (values.i[0], values.i[1], values.i[2], values.i[3]); |
---|
1077 | } |
---|
1078 | else |
---|
1079 | { |
---|
1080 | int cargc = argc - (label + 1); |
---|
1081 | if (cargc == 0) |
---|
1082 | { |
---|
1083 | csig_none call = (csig_none) sym->value; |
---|
1084 | call (); |
---|
1085 | } |
---|
1086 | else |
---|
1087 | { |
---|
1088 | csig_argv call = (csig_argv) sym->value; |
---|
1089 | const char* cargv = argv[label + 1]; |
---|
1090 | call (cargc, &cargv); |
---|
1091 | } |
---|
1092 | } |
---|
1093 | |
---|
1094 | if (!keep_locked) |
---|
1095 | { |
---|
1096 | rtl = rtems_rtl_lock (); |
---|
1097 | if (rtl == NULL) |
---|
1098 | { |
---|
1099 | rtems_printf (printer, "error: cannot lock the linker\n"); |
---|
1100 | return 1; |
---|
1101 | } |
---|
1102 | |
---|
1103 | obj = rtems_rtl_find_obj_with_symbol (sym); |
---|
1104 | if (obj == NULL) |
---|
1105 | { |
---|
1106 | rtems_rtl_unlock (); |
---|
1107 | rtems_printf (printer, "error: symbol obj not found: %s\n", argv[label]); |
---|
1108 | return 1; |
---|
1109 | } |
---|
1110 | |
---|
1111 | rtems_rtl_obj_dec_reference (obj); |
---|
1112 | |
---|
1113 | rtems_rtl_unlock (); |
---|
1114 | } |
---|
1115 | |
---|
1116 | return 0; |
---|
1117 | } |
---|
1118 | |
---|
1119 | static void |
---|
1120 | rtems_rtl_shell_usage (const rtems_printer* printer, const char* arg) |
---|
1121 | { |
---|
1122 | rtems_printf (printer, "%s: Runtime Linker\n", arg); |
---|
1123 | rtems_printf (printer, " %s [-hl] <command>\n", arg); |
---|
1124 | rtems_printf (printer, " where:\n"); |
---|
1125 | rtems_printf (printer, " command: A n RTL command. See -l for a list plus help.\n"); |
---|
1126 | rtems_printf (printer, " -h: This help\n"); |
---|
1127 | rtems_printf (printer, " -l: The command list.\n"); |
---|
1128 | } |
---|
1129 | |
---|
1130 | int |
---|
1131 | rtems_rtl_shell_command (int argc, char* argv[]) |
---|
1132 | { |
---|
1133 | const rtems_rtl_shell_cmd table[] = |
---|
1134 | { |
---|
1135 | { "status", rtems_rtl_shell_status, |
---|
1136 | "Display the status of the RTL" }, |
---|
1137 | { "list", rtems_rtl_shell_list, |
---|
1138 | "\tList the object files currently loaded" }, |
---|
1139 | { "sym", rtems_rtl_shell_sym, |
---|
1140 | "\tDisplay the symbols, sym [<name>], sym -o <obj> [<name>]" }, |
---|
1141 | { "obj", rtems_rtl_shell_object, |
---|
1142 | "\tDisplay the object details, obj <name>" }, |
---|
1143 | { "call", rtems_rtl_shell_call, |
---|
1144 | "\tCall a symbol" }, |
---|
1145 | { "ar", rtems_rtl_shell_archive, |
---|
1146 | "\tDisplay the archive details, ar [-ls] <name>" }, |
---|
1147 | { "trace", rtems_rtl_trace_shell_command, |
---|
1148 | "\tControl the RTL trace flags, trace [-h]" } |
---|
1149 | }; |
---|
1150 | |
---|
1151 | rtems_printer printer; |
---|
1152 | int arg; |
---|
1153 | int t; |
---|
1154 | |
---|
1155 | rtems_print_printer_printf (&printer); |
---|
1156 | |
---|
1157 | for (arg = 1; arg < argc; arg++) |
---|
1158 | { |
---|
1159 | if (argv[arg][0] != '-') |
---|
1160 | break; |
---|
1161 | |
---|
1162 | switch (argv[arg][1]) |
---|
1163 | { |
---|
1164 | case 'h': |
---|
1165 | rtems_rtl_shell_usage (&printer, argv[0]); |
---|
1166 | return 0; |
---|
1167 | case 'l': |
---|
1168 | rtems_printf (&printer, "%s: commands are:\n", argv[0]); |
---|
1169 | for (t = 0; |
---|
1170 | t < (sizeof (table) / sizeof (const rtems_rtl_shell_cmd)); |
---|
1171 | ++t) |
---|
1172 | rtems_printf (&printer, " %s\t%s\n", table[t].name, table[t].help); |
---|
1173 | return 0; |
---|
1174 | default: |
---|
1175 | rtems_printf (&printer, "error: unknown option: %s\n", argv[arg]); |
---|
1176 | return 1; |
---|
1177 | } |
---|
1178 | } |
---|
1179 | |
---|
1180 | if ((argc - arg) < 1) |
---|
1181 | rtems_printf (&printer, "error: you need to provide a command, try %s -h\n", |
---|
1182 | argv[0]); |
---|
1183 | else |
---|
1184 | { |
---|
1185 | for (t = 0; |
---|
1186 | t < (sizeof (table) / sizeof (const rtems_rtl_shell_cmd)); |
---|
1187 | ++t) |
---|
1188 | { |
---|
1189 | if (strncmp (argv[arg], table[t].name, strlen (argv[arg])) == 0) |
---|
1190 | return table[t].handler (&printer, argc - 1, argv + 1); |
---|
1191 | } |
---|
1192 | rtems_printf (&printer, "error: command not found: %s (try -h)\n", argv[arg]); |
---|
1193 | } |
---|
1194 | |
---|
1195 | return 1; |
---|
1196 | } |
---|