| 1 | /* Support for GDB maintenance commands. |
| 2 | Copyright 1992, 1993, 1994 Free Software Foundation, Inc. |
| 3 | Written by Fred Fish at Cygnus Support. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | |
| 22 | #include "defs.h" |
| 23 | |
| 24 | #if MAINTENANCE_CMDS /* Entire file goes away if not including maint cmds */ |
| 25 | |
| 26 | #include <signal.h> |
| 27 | #include "command.h" |
| 28 | #include "gdbcmd.h" |
| 29 | #include "symtab.h" |
| 30 | #include "gdbtypes.h" |
| 31 | #include "demangle.h" |
| 32 | #include "gdbcore.h" |
| 33 | #include "expression.h" /* For language.h */ |
| 34 | #include "language.h" |
| 35 | |
| 36 | static void maintenance_command PARAMS ((char *, int)); |
| 37 | |
| 38 | static void maintenance_dump_me PARAMS ((char *, int)); |
| 39 | |
| 40 | static void maintenance_demangle PARAMS ((char *, int)); |
| 41 | |
| 42 | static void maintenance_time_display PARAMS ((char *, int)); |
| 43 | |
| 44 | static void maintenance_space_display PARAMS ((char *, int)); |
| 45 | |
| 46 | /* Set this to the maximum number of seconds to wait instead of waiting forever |
| 47 | in target_wait(). If this timer times out, then it generates an error and |
| 48 | the command is aborted. This replaces most of the need for timeouts in the |
| 49 | GDB test suite, and makes it possible to distinguish between a hung target |
| 50 | and one with slow communications. */ |
| 51 | |
| 52 | int watchdog = 0; |
| 53 | |
| 54 | /* |
| 55 | |
| 56 | LOCAL FUNCTION |
| 57 | |
| 58 | maintenance_command -- access the maintenance subcommands |
| 59 | |
| 60 | SYNOPSIS |
| 61 | |
| 62 | void maintenance_command (char *args, int from_tty) |
| 63 | |
| 64 | DESCRIPTION |
| 65 | |
| 66 | */ |
| 67 | |
| 68 | static void |
| 69 | maintenance_command (args, from_tty) |
| 70 | char *args; |
| 71 | int from_tty; |
| 72 | { |
| 73 | printf_unfiltered ("\"maintenance\" must be followed by the name of a maintenance command.\n"); |
| 74 | help_list (maintenancelist, "maintenance ", -1, gdb_stdout); |
| 75 | } |
| 76 | |
| 77 | |
| 78 | /* ARGSUSED */ |
| 79 | static void |
| 80 | maintenance_dump_me (args, from_tty) |
| 81 | char *args; |
| 82 | int from_tty; |
| 83 | { |
| 84 | if (query ("Should GDB dump core? ")) |
| 85 | { |
| 86 | signal (SIGQUIT, SIG_DFL); |
| 87 | kill (getpid (), SIGQUIT); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | /* Someday we should allow demangling for things other than just |
| 92 | explicit strings. For example, we might want to be able to |
| 93 | specify the address of a string in either GDB's process space |
| 94 | or the debuggee's process space, and have gdb fetch and demangle |
| 95 | that string. If we have a char* pointer "ptr" that points to |
| 96 | a string, we might want to be able to given just the name and |
| 97 | have GDB demangle and print what it points to, etc. (FIXME) */ |
| 98 | |
| 99 | static void |
| 100 | maintenance_demangle (args, from_tty) |
| 101 | char *args; |
| 102 | int from_tty; |
| 103 | { |
| 104 | char *demangled; |
| 105 | |
| 106 | if (args == NULL || *args == '\0') |
| 107 | { |
| 108 | printf_unfiltered ("\"maintenance demangle\" takes an argument to demangle.\n"); |
| 109 | } |
| 110 | else |
| 111 | { |
| 112 | demangled = cplus_demangle (args, DMGL_ANSI | DMGL_PARAMS); |
| 113 | if (demangled != NULL) |
| 114 | { |
| 115 | printf_unfiltered ("%s\n", demangled); |
| 116 | free (demangled); |
| 117 | } |
| 118 | else |
| 119 | { |
| 120 | printf_unfiltered ("Can't demangle \"%s\"\n", args); |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | static void |
| 126 | maintenance_time_display (args, from_tty) |
| 127 | char *args; |
| 128 | int from_tty; |
| 129 | { |
| 130 | extern int display_time; |
| 131 | |
| 132 | if (args == NULL || *args == '\0') |
| 133 | printf_unfiltered ("\"maintenance time\" takes a numeric argument.\n"); |
| 134 | else |
| 135 | display_time = strtol (args, NULL, 10); |
| 136 | } |
| 137 | |
| 138 | static void |
| 139 | maintenance_space_display (args, from_tty) |
| 140 | char *args; |
| 141 | int from_tty; |
| 142 | { |
| 143 | extern int display_space; |
| 144 | |
| 145 | if (args == NULL || *args == '\0') |
| 146 | printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n"); |
| 147 | else |
| 148 | display_space = strtol (args, NULL, 10); |
| 149 | } |
| 150 | |
| 151 | /* The "maintenance info" command is defined as a prefix, with allow_unknown 0. |
| 152 | Therefore, its own definition is called only for "maintenance info" with |
| 153 | no args. */ |
| 154 | |
| 155 | /* ARGSUSED */ |
| 156 | static void |
| 157 | maintenance_info_command (arg, from_tty) |
| 158 | char *arg; |
| 159 | int from_tty; |
| 160 | { |
| 161 | printf_unfiltered ("\"maintenance info\" must be followed by the name of an info command.\n"); |
| 162 | help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout); |
| 163 | } |
| 164 | |
| 165 | static void |
| 166 | print_section_table (abfd, asect, ignore) |
| 167 | bfd *abfd; |
| 168 | asection *asect; |
| 169 | PTR ignore; |
| 170 | { |
| 171 | flagword flags; |
| 172 | |
| 173 | flags = bfd_get_section_flags (abfd, asect); |
| 174 | |
| 175 | /* FIXME-32x64: Need print_address_numeric with field width. */ |
| 176 | printf_filtered (" %s", |
| 177 | local_hex_string_custom |
| 178 | ((unsigned long) bfd_section_vma (abfd, asect), "08l")); |
| 179 | printf_filtered ("->%s", |
| 180 | local_hex_string_custom |
| 181 | ((unsigned long) (bfd_section_vma (abfd, asect) |
| 182 | + bfd_section_size (abfd, asect)), |
| 183 | "08l")); |
| 184 | printf_filtered (" at %s", |
| 185 | local_hex_string_custom |
| 186 | ((unsigned long) asect->filepos, "08l")); |
| 187 | printf_filtered (": %s", bfd_section_name (abfd, asect)); |
| 188 | |
| 189 | if (flags & SEC_ALLOC) |
| 190 | printf_filtered (" ALLOC"); |
| 191 | if (flags & SEC_LOAD) |
| 192 | printf_filtered (" LOAD"); |
| 193 | if (flags & SEC_RELOC) |
| 194 | printf_filtered (" RELOC"); |
| 195 | if (flags & SEC_READONLY) |
| 196 | printf_filtered (" READONLY"); |
| 197 | if (flags & SEC_CODE) |
| 198 | printf_filtered (" CODE"); |
| 199 | if (flags & SEC_DATA) |
| 200 | printf_filtered (" DATA"); |
| 201 | if (flags & SEC_ROM) |
| 202 | printf_filtered (" ROM"); |
| 203 | if (flags & SEC_CONSTRUCTOR) |
| 204 | printf_filtered (" CONSTRUCTOR"); |
| 205 | if (flags & SEC_HAS_CONTENTS) |
| 206 | printf_filtered (" HAS_CONTENTS"); |
| 207 | if (flags & SEC_NEVER_LOAD) |
| 208 | printf_filtered (" NEVER_LOAD"); |
| 209 | if (flags & SEC_COFF_SHARED_LIBRARY) |
| 210 | printf_filtered (" COFF_SHARED_LIBRARY"); |
| 211 | if (flags & SEC_IS_COMMON) |
| 212 | printf_filtered (" IS_COMMON"); |
| 213 | |
| 214 | printf_filtered ("\n"); |
| 215 | } |
| 216 | |
| 217 | /* ARGSUSED */ |
| 218 | static void |
| 219 | maintenance_info_sections (arg, from_tty) |
| 220 | char *arg; |
| 221 | int from_tty; |
| 222 | { |
| 223 | if (exec_bfd) |
| 224 | { |
| 225 | printf_filtered ("Exec file:\n"); |
| 226 | printf_filtered (" `%s', ", bfd_get_filename(exec_bfd)); |
| 227 | wrap_here (" "); |
| 228 | printf_filtered ("file type %s.\n", bfd_get_target(exec_bfd)); |
| 229 | bfd_map_over_sections(exec_bfd, print_section_table, 0); |
| 230 | } |
| 231 | |
| 232 | if (core_bfd) |
| 233 | { |
| 234 | printf_filtered ("Core file:\n"); |
| 235 | printf_filtered (" `%s', ", bfd_get_filename(core_bfd)); |
| 236 | wrap_here (" "); |
| 237 | printf_filtered ("file type %s.\n", bfd_get_target(core_bfd)); |
| 238 | bfd_map_over_sections(core_bfd, print_section_table, 0); |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | /* The "maintenance print" command is defined as a prefix, with allow_unknown |
| 243 | 0. Therefore, its own definition is called only for "maintenance print" |
| 244 | with no args. */ |
| 245 | |
| 246 | /* ARGSUSED */ |
| 247 | static void |
| 248 | maintenance_print_command (arg, from_tty) |
| 249 | char *arg; |
| 250 | int from_tty; |
| 251 | { |
| 252 | printf_unfiltered ("\"maintenance print\" must be followed by the name of a print command.\n"); |
| 253 | help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout); |
| 254 | } |
| 255 | |
| 256 | #endif /* MAINTENANCE_CMDS */ |
| 257 | |
| 258 | void |
| 259 | _initialize_maint_cmds () |
| 260 | { |
| 261 | #if MAINTENANCE_CMDS /* Entire file goes away if not including maint cmds */ |
| 262 | add_prefix_cmd ("maintenance", class_maintenance, maintenance_command, |
| 263 | "Commands for use by GDB maintainers.\n\ |
| 264 | Includes commands to dump specific internal GDB structures in\n\ |
| 265 | a human readable form, to cause GDB to deliberately dump core,\n\ |
| 266 | to test internal functions such as the C++ demangler, etc.", |
| 267 | &maintenancelist, "maintenance ", 0, |
| 268 | &cmdlist); |
| 269 | |
| 270 | add_com_alias ("mt", "maintenance", class_maintenance, 1); |
| 271 | |
| 272 | add_prefix_cmd ("info", class_maintenance, maintenance_info_command, |
| 273 | "Commands for showing internal info about the program being debugged.", |
| 274 | &maintenanceinfolist, "maintenance info ", 0, |
| 275 | &maintenancelist); |
| 276 | |
| 277 | add_cmd ("sections", class_maintenance, maintenance_info_sections, |
| 278 | "List the BFD sections of the exec and core files.", |
| 279 | &maintenanceinfolist); |
| 280 | |
| 281 | add_prefix_cmd ("print", class_maintenance, maintenance_print_command, |
| 282 | "Maintenance command for printing GDB internal state.", |
| 283 | &maintenanceprintlist, "maintenance print ", 0, |
| 284 | &maintenancelist); |
| 285 | |
| 286 | add_cmd ("dump-me", class_maintenance, maintenance_dump_me, |
| 287 | "Get fatal error; make debugger dump its core.\n\ |
| 288 | GDB sets it's handling of SIGQUIT back to SIG_DFL and then sends\n\ |
| 289 | itself a SIGQUIT signal.", |
| 290 | &maintenancelist); |
| 291 | |
| 292 | add_cmd ("demangle", class_maintenance, maintenance_demangle, |
| 293 | "Demangle a C++ mangled name.\n\ |
| 294 | Call internal GDB demangler routine to demangle a C++ link name\n\ |
| 295 | and prints the result.", |
| 296 | &maintenancelist); |
| 297 | |
| 298 | add_cmd ("time", class_maintenance, maintenance_time_display, |
| 299 | "Set the display of time usage.\n\ |
| 300 | If nonzero, will cause the execution time for each command to be\n\ |
| 301 | displayed, following the command's output.", |
| 302 | &maintenancelist); |
| 303 | |
| 304 | add_cmd ("space", class_maintenance, maintenance_space_display, |
| 305 | "Set the display of space usage.\n\ |
| 306 | If nonzero, will cause the execution space for each command to be\n\ |
| 307 | displayed, following the command's output.", |
| 308 | &maintenancelist); |
| 309 | |
| 310 | add_cmd ("type", class_maintenance, maintenance_print_type, |
| 311 | "Print a type chain for a given symbol.\n\ |
| 312 | For each node in a type chain, print the raw data for each member of\n\ |
| 313 | the type structure, and the interpretation of the data.", |
| 314 | &maintenanceprintlist); |
| 315 | |
| 316 | add_cmd ("symbols", class_maintenance, maintenance_print_symbols, |
| 317 | "Print dump of current symbol definitions.\n\ |
| 318 | Entries in the full symbol table are dumped to file OUTFILE.\n\ |
| 319 | If a SOURCE file is specified, dump only that file's symbols.", |
| 320 | &maintenanceprintlist); |
| 321 | |
| 322 | add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols, |
| 323 | "Print dump of current minimal symbol definitions.\n\ |
| 324 | Entries in the minimal symbol table are dumped to file OUTFILE.\n\ |
| 325 | If a SOURCE file is specified, dump only that file's minimal symbols.", |
| 326 | &maintenanceprintlist); |
| 327 | |
| 328 | add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols, |
| 329 | "Print dump of current partial symbol definitions.\n\ |
| 330 | Entries in the partial symbol table are dumped to file OUTFILE.\n\ |
| 331 | If a SOURCE file is specified, dump only that file's partial symbols.", |
| 332 | &maintenanceprintlist); |
| 333 | |
| 334 | add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles, |
| 335 | "Print dump of current object file definitions.", |
| 336 | &maintenanceprintlist); |
| 337 | |
| 338 | add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs, |
| 339 | "Check consistency of psymtabs and symtabs.", |
| 340 | &maintenancelist); |
| 341 | |
| 342 | add_show_from_set ( |
| 343 | add_set_cmd ("watchdog", class_maintenance, var_zinteger, (char *)&watchdog, |
| 344 | "Set watchdog timer.\n\ |
| 345 | When non-zero, this timeout is used instead of waiting forever for a target to\n\ |
| 346 | finish a low-level step or continue operation. If the specified amount of time\n\ |
| 347 | passes without a response from the target, an error occurs.", &setlist), |
| 348 | &showlist); |
| 349 | #endif /* MAINTENANCE_CMDS */ |
| 350 | } |