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c906108c SS |
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | ||
22 | #include "defs.h" | |
c906108c SS |
23 | #include <ctype.h> |
24 | #include <signal.h> | |
25 | #include "command.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "symtab.h" | |
28 | #include "gdbtypes.h" | |
29 | #include "demangle.h" | |
30 | #include "gdbcore.h" | |
31 | #include "expression.h" /* For language.h */ | |
32 | #include "language.h" | |
33 | #include "symfile.h" | |
34 | #include "objfiles.h" | |
35 | #include "value.h" | |
36 | ||
37 | #ifdef HAVE_UNISTD_H | |
38 | #include <unistd.h> | |
39 | #endif | |
40 | ||
392a587b JM |
41 | extern void _initialize_maint_cmds PARAMS ((void)); |
42 | ||
c906108c SS |
43 | static void maintenance_command PARAMS ((char *, int)); |
44 | ||
45 | static void maintenance_dump_me PARAMS ((char *, int)); | |
46 | ||
47 | static void maintenance_demangle PARAMS ((char *, int)); | |
48 | ||
49 | static void maintenance_time_display PARAMS ((char *, int)); | |
50 | ||
51 | static void maintenance_space_display PARAMS ((char *, int)); | |
52 | ||
53 | static void maintenance_info_command PARAMS ((char *, int)); | |
54 | ||
55 | static void print_section_table PARAMS ((bfd *, asection *, PTR)); | |
56 | ||
57 | static void maintenance_info_sections PARAMS ((char *, int)); | |
58 | ||
59 | static void maintenance_print_command PARAMS ((char *, int)); | |
60 | ||
61 | /* Set this to the maximum number of seconds to wait instead of waiting forever | |
62 | in target_wait(). If this timer times out, then it generates an error and | |
63 | the command is aborted. This replaces most of the need for timeouts in the | |
64 | GDB test suite, and makes it possible to distinguish between a hung target | |
65 | and one with slow communications. */ | |
66 | ||
67 | int watchdog = 0; | |
68 | ||
69 | /* | |
70 | ||
71 | LOCAL FUNCTION | |
72 | ||
73 | maintenance_command -- access the maintenance subcommands | |
74 | ||
75 | SYNOPSIS | |
76 | ||
77 | void maintenance_command (char *args, int from_tty) | |
78 | ||
79 | DESCRIPTION | |
80 | ||
81 | */ | |
82 | ||
83 | static void | |
84 | maintenance_command (args, from_tty) | |
85 | char *args; | |
86 | int from_tty; | |
87 | { | |
88 | printf_unfiltered ("\"maintenance\" must be followed by the name of a maintenance command.\n"); | |
89 | help_list (maintenancelist, "maintenance ", -1, gdb_stdout); | |
90 | } | |
91 | ||
92 | #ifndef _WIN32 | |
93 | /* ARGSUSED */ | |
94 | static void | |
95 | maintenance_dump_me (args, from_tty) | |
96 | char *args; | |
97 | int from_tty; | |
98 | { | |
99 | if (query ("Should GDB dump core? ")) | |
100 | { | |
101 | signal (SIGQUIT, SIG_DFL); | |
102 | kill (getpid (), SIGQUIT); | |
103 | } | |
104 | } | |
105 | #endif | |
106 | ||
107 | /* Someday we should allow demangling for things other than just | |
108 | explicit strings. For example, we might want to be able to | |
109 | specify the address of a string in either GDB's process space | |
110 | or the debuggee's process space, and have gdb fetch and demangle | |
111 | that string. If we have a char* pointer "ptr" that points to | |
112 | a string, we might want to be able to given just the name and | |
113 | have GDB demangle and print what it points to, etc. (FIXME) */ | |
114 | ||
115 | static void | |
116 | maintenance_demangle (args, from_tty) | |
117 | char *args; | |
118 | int from_tty; | |
119 | { | |
120 | char *demangled; | |
121 | ||
122 | if (args == NULL || *args == '\0') | |
123 | { | |
124 | printf_unfiltered ("\"maintenance demangle\" takes an argument to demangle.\n"); | |
125 | } | |
126 | else | |
127 | { | |
128 | demangled = cplus_demangle (args, DMGL_ANSI | DMGL_PARAMS); | |
129 | if (demangled != NULL) | |
130 | { | |
131 | printf_unfiltered ("%s\n", demangled); | |
132 | free (demangled); | |
133 | } | |
134 | else | |
135 | { | |
136 | printf_unfiltered ("Can't demangle \"%s\"\n", args); | |
137 | } | |
138 | } | |
139 | } | |
140 | ||
141 | static void | |
142 | maintenance_time_display (args, from_tty) | |
143 | char *args; | |
144 | int from_tty; | |
145 | { | |
146 | extern int display_time; | |
147 | ||
148 | if (args == NULL || *args == '\0') | |
149 | printf_unfiltered ("\"maintenance time\" takes a numeric argument.\n"); | |
150 | else | |
151 | display_time = strtol (args, NULL, 10); | |
152 | } | |
153 | ||
154 | static void | |
155 | maintenance_space_display (args, from_tty) | |
156 | char *args; | |
157 | int from_tty; | |
158 | { | |
159 | extern int display_space; | |
160 | ||
161 | if (args == NULL || *args == '\0') | |
162 | printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n"); | |
163 | else | |
164 | display_space = strtol (args, NULL, 10); | |
165 | } | |
166 | ||
167 | /* The "maintenance info" command is defined as a prefix, with allow_unknown 0. | |
168 | Therefore, its own definition is called only for "maintenance info" with | |
169 | no args. */ | |
170 | ||
171 | /* ARGSUSED */ | |
172 | static void | |
173 | maintenance_info_command (arg, from_tty) | |
174 | char *arg; | |
175 | int from_tty; | |
176 | { | |
177 | printf_unfiltered ("\"maintenance info\" must be followed by the name of an info command.\n"); | |
178 | help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout); | |
179 | } | |
180 | ||
181 | static void | |
182 | print_section_table (abfd, asect, ignore) | |
183 | bfd *abfd; | |
184 | asection *asect; | |
185 | PTR ignore; | |
186 | { | |
187 | flagword flags; | |
188 | ||
189 | flags = bfd_get_section_flags (abfd, asect); | |
190 | ||
191 | /* FIXME-32x64: Need print_address_numeric with field width. */ | |
192 | printf_filtered (" %s", | |
193 | local_hex_string_custom | |
194 | ((unsigned long) bfd_section_vma (abfd, asect), "08l")); | |
195 | printf_filtered ("->%s", | |
196 | local_hex_string_custom | |
197 | ((unsigned long) (bfd_section_vma (abfd, asect) | |
198 | + bfd_section_size (abfd, asect)), | |
199 | "08l")); | |
200 | printf_filtered (" at %s", | |
201 | local_hex_string_custom | |
202 | ((unsigned long) asect->filepos, "08l")); | |
203 | printf_filtered (": %s", bfd_section_name (abfd, asect)); | |
204 | ||
205 | if (flags & SEC_ALLOC) | |
206 | printf_filtered (" ALLOC"); | |
207 | if (flags & SEC_LOAD) | |
208 | printf_filtered (" LOAD"); | |
209 | if (flags & SEC_RELOC) | |
210 | printf_filtered (" RELOC"); | |
211 | if (flags & SEC_READONLY) | |
212 | printf_filtered (" READONLY"); | |
213 | if (flags & SEC_CODE) | |
214 | printf_filtered (" CODE"); | |
215 | if (flags & SEC_DATA) | |
216 | printf_filtered (" DATA"); | |
217 | if (flags & SEC_ROM) | |
218 | printf_filtered (" ROM"); | |
219 | if (flags & SEC_CONSTRUCTOR) | |
220 | printf_filtered (" CONSTRUCTOR"); | |
221 | if (flags & SEC_HAS_CONTENTS) | |
222 | printf_filtered (" HAS_CONTENTS"); | |
223 | if (flags & SEC_NEVER_LOAD) | |
224 | printf_filtered (" NEVER_LOAD"); | |
225 | if (flags & SEC_COFF_SHARED_LIBRARY) | |
226 | printf_filtered (" COFF_SHARED_LIBRARY"); | |
227 | if (flags & SEC_IS_COMMON) | |
228 | printf_filtered (" IS_COMMON"); | |
229 | ||
230 | printf_filtered ("\n"); | |
231 | } | |
232 | ||
233 | /* ARGSUSED */ | |
234 | static void | |
235 | maintenance_info_sections (arg, from_tty) | |
236 | char *arg; | |
237 | int from_tty; | |
238 | { | |
239 | if (exec_bfd) | |
240 | { | |
241 | printf_filtered ("Exec file:\n"); | |
242 | printf_filtered (" `%s', ", bfd_get_filename(exec_bfd)); | |
243 | wrap_here (" "); | |
244 | printf_filtered ("file type %s.\n", bfd_get_target(exec_bfd)); | |
245 | bfd_map_over_sections(exec_bfd, print_section_table, 0); | |
246 | } | |
247 | ||
248 | if (core_bfd) | |
249 | { | |
250 | printf_filtered ("Core file:\n"); | |
251 | printf_filtered (" `%s', ", bfd_get_filename(core_bfd)); | |
252 | wrap_here (" "); | |
253 | printf_filtered ("file type %s.\n", bfd_get_target(core_bfd)); | |
254 | bfd_map_over_sections(core_bfd, print_section_table, 0); | |
255 | } | |
256 | } | |
257 | ||
258 | /* ARGSUSED */ | |
259 | void | |
260 | maintenance_print_statistics (args, from_tty) | |
261 | char *args; | |
262 | int from_tty; | |
263 | { | |
264 | print_objfile_statistics (); | |
265 | print_symbol_bcache_statistics (); | |
266 | } | |
267 | ||
268 | /* The "maintenance print" command is defined as a prefix, with allow_unknown | |
269 | 0. Therefore, its own definition is called only for "maintenance print" | |
270 | with no args. */ | |
271 | ||
272 | /* ARGSUSED */ | |
273 | static void | |
274 | maintenance_print_command (arg, from_tty) | |
275 | char *arg; | |
276 | int from_tty; | |
277 | { | |
278 | printf_unfiltered ("\"maintenance print\" must be followed by the name of a print command.\n"); | |
279 | help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout); | |
280 | } | |
281 | ||
282 | /* The "maintenance translate-address" command converts a section and address | |
283 | to a symbol. This can be called in two ways: | |
284 | maintenance translate-address <secname> <addr> | |
285 | or maintenance translate-address <addr> | |
286 | */ | |
287 | ||
288 | static void | |
289 | maintenance_translate_address (arg, from_tty) | |
290 | char *arg; | |
291 | int from_tty; | |
292 | { | |
293 | CORE_ADDR address; | |
294 | asection *sect; | |
295 | char *p; | |
296 | struct minimal_symbol *sym; | |
297 | struct objfile *objfile; | |
298 | ||
299 | if (arg == NULL || *arg == 0) | |
300 | error ("requires argument (address or section + address)"); | |
301 | ||
302 | sect = NULL; | |
303 | p = arg; | |
304 | ||
305 | if (!isdigit (*p)) | |
306 | { /* See if we have a valid section name */ | |
307 | while (*p && !isspace (*p)) /* Find end of section name */ | |
308 | p++; | |
309 | if (*p == '\000') /* End of command? */ | |
310 | error ("Need to specify <section-name> and <address>"); | |
311 | *p++ = '\000'; | |
312 | while (isspace (*p)) p++; /* Skip whitespace */ | |
313 | ||
314 | ALL_OBJFILES (objfile) | |
315 | { | |
316 | sect = bfd_get_section_by_name (objfile->obfd, arg); | |
317 | if (sect != NULL) | |
318 | break; | |
319 | } | |
320 | ||
321 | if (!sect) | |
322 | error ("Unknown section %s.", arg); | |
323 | } | |
324 | ||
325 | address = parse_and_eval_address (p); | |
326 | ||
327 | if (sect) | |
328 | sym = lookup_minimal_symbol_by_pc_section (address, sect); | |
329 | else | |
330 | sym = lookup_minimal_symbol_by_pc (address); | |
331 | ||
332 | if (sym) | |
333 | printf_filtered ("%s+%u\n", | |
334 | SYMBOL_SOURCE_NAME (sym), | |
335 | address - SYMBOL_VALUE_ADDRESS (sym)); | |
336 | else if (sect) | |
337 | printf_filtered ("no symbol at %s:0x%08x\n", sect->name, address); | |
338 | else | |
339 | printf_filtered ("no symbol at 0x%08x\n", address); | |
340 | ||
341 | return; | |
342 | } | |
343 | ||
c906108c SS |
344 | void |
345 | _initialize_maint_cmds () | |
346 | { | |
c906108c SS |
347 | add_prefix_cmd ("maintenance", class_maintenance, maintenance_command, |
348 | "Commands for use by GDB maintainers.\n\ | |
349 | Includes commands to dump specific internal GDB structures in\n\ | |
350 | a human readable form, to cause GDB to deliberately dump core,\n\ | |
351 | to test internal functions such as the C++ demangler, etc.", | |
352 | &maintenancelist, "maintenance ", 0, | |
353 | &cmdlist); | |
354 | ||
355 | add_com_alias ("mt", "maintenance", class_maintenance, 1); | |
356 | ||
357 | add_prefix_cmd ("info", class_maintenance, maintenance_info_command, | |
358 | "Commands for showing internal info about the program being debugged.", | |
359 | &maintenanceinfolist, "maintenance info ", 0, | |
360 | &maintenancelist); | |
361 | ||
362 | add_cmd ("sections", class_maintenance, maintenance_info_sections, | |
363 | "List the BFD sections of the exec and core files.", | |
364 | &maintenanceinfolist); | |
365 | ||
366 | add_prefix_cmd ("print", class_maintenance, maintenance_print_command, | |
367 | "Maintenance command for printing GDB internal state.", | |
368 | &maintenanceprintlist, "maintenance print ", 0, | |
369 | &maintenancelist); | |
370 | ||
371 | #ifndef _WIN32 | |
372 | add_cmd ("dump-me", class_maintenance, maintenance_dump_me, | |
373 | "Get fatal error; make debugger dump its core.\n\ | |
374 | GDB sets it's handling of SIGQUIT back to SIG_DFL and then sends\n\ | |
375 | itself a SIGQUIT signal.", | |
376 | &maintenancelist); | |
377 | #endif | |
378 | ||
379 | add_cmd ("demangle", class_maintenance, maintenance_demangle, | |
380 | "Demangle a C++ mangled name.\n\ | |
381 | Call internal GDB demangler routine to demangle a C++ link name\n\ | |
382 | and prints the result.", | |
383 | &maintenancelist); | |
384 | ||
385 | add_cmd ("time", class_maintenance, maintenance_time_display, | |
386 | "Set the display of time usage.\n\ | |
387 | If nonzero, will cause the execution time for each command to be\n\ | |
388 | displayed, following the command's output.", | |
389 | &maintenancelist); | |
390 | ||
391 | add_cmd ("space", class_maintenance, maintenance_space_display, | |
392 | "Set the display of space usage.\n\ | |
393 | If nonzero, will cause the execution space for each command to be\n\ | |
394 | displayed, following the command's output.", | |
395 | &maintenancelist); | |
396 | ||
397 | add_cmd ("type", class_maintenance, maintenance_print_type, | |
398 | "Print a type chain for a given symbol.\n\ | |
399 | For each node in a type chain, print the raw data for each member of\n\ | |
400 | the type structure, and the interpretation of the data.", | |
401 | &maintenanceprintlist); | |
402 | ||
403 | add_cmd ("symbols", class_maintenance, maintenance_print_symbols, | |
404 | "Print dump of current symbol definitions.\n\ | |
405 | Entries in the full symbol table are dumped to file OUTFILE.\n\ | |
406 | If a SOURCE file is specified, dump only that file's symbols.", | |
407 | &maintenanceprintlist); | |
408 | ||
409 | add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols, | |
410 | "Print dump of current minimal symbol definitions.\n\ | |
411 | Entries in the minimal symbol table are dumped to file OUTFILE.\n\ | |
412 | If a SOURCE file is specified, dump only that file's minimal symbols.", | |
413 | &maintenanceprintlist); | |
414 | ||
415 | add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols, | |
416 | "Print dump of current partial symbol definitions.\n\ | |
417 | Entries in the partial symbol table are dumped to file OUTFILE.\n\ | |
418 | If a SOURCE file is specified, dump only that file's partial symbols.", | |
419 | &maintenanceprintlist); | |
420 | ||
421 | add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles, | |
422 | "Print dump of current object file definitions.", | |
423 | &maintenanceprintlist); | |
424 | ||
425 | add_cmd ("statistics", class_maintenance, maintenance_print_statistics, | |
426 | "Print statistics about internal gdb state.", | |
427 | &maintenanceprintlist); | |
428 | ||
429 | add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs, | |
430 | "Check consistency of psymtabs and symtabs.", | |
431 | &maintenancelist); | |
432 | ||
433 | add_cmd ("translate-address", class_maintenance, maintenance_translate_address, | |
434 | "Translate a section name and address to a symbol.", | |
435 | &maintenancelist); | |
436 | ||
437 | add_show_from_set ( | |
438 | add_set_cmd ("watchdog", class_maintenance, var_zinteger, (char *)&watchdog, | |
439 | "Set watchdog timer.\n\ | |
440 | When non-zero, this timeout is used instead of waiting forever for a target to\n\ | |
441 | finish a low-level step or continue operation. If the specified amount of time\n\ | |
442 | passes without a response from the target, an error occurs.", &setlist), | |
443 | &showlist); | |
c906108c | 444 | } |