Commit | Line | Data |
---|---|---|
c906108c SS |
1 | /* Variables that describe the inferior process running under GDB: |
2 | Where it is, why it stopped, and how to step it. | |
1bac305b AC |
3 | |
4 | Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, | |
5 | 1996, 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
23 | |
24 | #if !defined (INFERIOR_H) | |
25 | #define INFERIOR_H 1 | |
26 | ||
67a2b77e | 27 | struct gdbarch; |
72cec141 | 28 | struct regcache; |
67a2b77e | 29 | |
c906108c SS |
30 | /* For bpstat. */ |
31 | #include "breakpoint.h" | |
32 | ||
33 | /* For enum target_signal. */ | |
34 | #include "target.h" | |
35 | ||
aa0cd9c1 AC |
36 | /* For struct frame_id. */ |
37 | #include "frame.h" | |
38 | ||
7a292a7a | 39 | /* Structure in which to save the status of the inferior. Create/Save |
c906108c SS |
40 | through "save_inferior_status", restore through |
41 | "restore_inferior_status". | |
7a292a7a | 42 | |
c906108c SS |
43 | This pair of routines should be called around any transfer of |
44 | control to the inferior which you don't want showing up in your | |
45 | control variables. */ | |
46 | ||
7a292a7a | 47 | struct inferior_status; |
7a292a7a | 48 | |
a14ed312 | 49 | extern struct inferior_status *save_inferior_status (int); |
7a292a7a | 50 | |
a14ed312 | 51 | extern void restore_inferior_status (struct inferior_status *); |
7a292a7a | 52 | |
74b7792f AC |
53 | extern struct cleanup *make_cleanup_restore_inferior_status (struct inferior_status *); |
54 | ||
a14ed312 | 55 | extern void discard_inferior_status (struct inferior_status *); |
7a292a7a | 56 | |
a14ed312 KB |
57 | extern void write_inferior_status_register (struct inferior_status |
58 | *inf_status, int regno, | |
59 | LONGEST val); | |
c906108c | 60 | |
ca6724c1 KB |
61 | /* The -1 ptid, often used to indicate either an error condition |
62 | or a "don't care" condition, i.e, "run all threads." */ | |
63 | extern ptid_t minus_one_ptid; | |
64 | ||
65 | /* The null or zero ptid, often used to indicate no process. */ | |
66 | extern ptid_t null_ptid; | |
67 | ||
68 | /* Attempt to find and return an existing ptid with the given PID, LWP, | |
69 | and TID components. If none exists, create a new one and return | |
70 | that. */ | |
71 | ptid_t ptid_build (int pid, long lwp, long tid); | |
72 | ||
73 | /* Find/Create a ptid from just a pid. */ | |
74 | ptid_t pid_to_ptid (int pid); | |
75 | ||
76 | /* Fetch the pid (process id) component from a ptid. */ | |
77 | int ptid_get_pid (ptid_t ptid); | |
78 | ||
79 | /* Fetch the lwp (lightweight process) component from a ptid. */ | |
80 | long ptid_get_lwp (ptid_t ptid); | |
81 | ||
82 | /* Fetch the tid (thread id) component from a ptid. */ | |
83 | long ptid_get_tid (ptid_t ptid); | |
84 | ||
85 | /* Compare two ptids to see if they are equal */ | |
86 | extern int ptid_equal (ptid_t p1, ptid_t p2); | |
87 | ||
ce696e05 KB |
88 | /* Save value of inferior_ptid so that it may be restored by |
89 | a later call to do_cleanups(). Returns the struct cleanup | |
90 | pointer needed for later doing the cleanup. */ | |
91 | extern struct cleanup * save_inferior_ptid (void); | |
92 | ||
a14ed312 | 93 | extern void set_sigint_trap (void); |
c906108c | 94 | |
a14ed312 | 95 | extern void clear_sigint_trap (void); |
c906108c | 96 | |
a14ed312 | 97 | extern void set_sigio_trap (void); |
c906108c | 98 | |
a14ed312 | 99 | extern void clear_sigio_trap (void); |
c906108c SS |
100 | |
101 | /* File name for default use for standard in/out in the inferior. */ | |
102 | ||
103 | extern char *inferior_io_terminal; | |
104 | ||
39f77062 KB |
105 | /* Collected pid, tid, etc. of the debugged inferior. When there's |
106 | no inferior, PIDGET (inferior_ptid) will be 0. */ | |
c906108c | 107 | |
39f77062 | 108 | extern ptid_t inferior_ptid; |
c906108c | 109 | |
43ff13b4 JM |
110 | /* Is the inferior running right now, as a result of a 'run&', |
111 | 'continue&' etc command? This is used in asycn gdb to determine | |
112 | whether a command that the user enters while the target is running | |
113 | is allowed or not. */ | |
114 | extern int target_executing; | |
115 | ||
116 | /* Are we simulating synchronous execution? This is used in async gdb | |
117 | to implement the 'run', 'continue' etc commands, which will not | |
118 | redisplay the prompt until the execution is actually over. */ | |
119 | extern int sync_execution; | |
120 | ||
39f77062 | 121 | /* This is only valid when inferior_ptid is non-zero. |
c906108c SS |
122 | |
123 | If this is 0, then exec events should be noticed and responded to | |
124 | by the debugger (i.e., be reported to the user). | |
125 | ||
126 | If this is > 0, then that many subsequent exec events should be | |
127 | ignored (i.e., not be reported to the user). | |
c5aa993b | 128 | */ |
c906108c SS |
129 | extern int inferior_ignoring_startup_exec_events; |
130 | ||
131 | /* This is only valid when inferior_ignoring_startup_exec_events is | |
132 | zero. | |
133 | ||
134 | Some targets (stupidly) report more than one exec event per actual | |
135 | call to an event() system call. If only the last such exec event | |
136 | need actually be noticed and responded to by the debugger (i.e., | |
137 | be reported to the user), then this is the number of "leading" | |
138 | exec events which should be ignored. | |
c5aa993b | 139 | */ |
c906108c SS |
140 | extern int inferior_ignoring_leading_exec_events; |
141 | ||
142 | /* Inferior environment. */ | |
143 | ||
144 | extern struct environ *inferior_environ; | |
145 | ||
a14ed312 | 146 | extern void clear_proceed_status (void); |
c906108c | 147 | |
a14ed312 | 148 | extern void proceed (CORE_ADDR, enum target_signal, int); |
c906108c | 149 | |
5fbbeb29 CF |
150 | /* When set, stop the 'step' command if we enter a function which has |
151 | no line number information. The normal behavior is that we step | |
152 | over such function. */ | |
153 | extern int step_stop_if_no_debug; | |
154 | ||
a14ed312 | 155 | extern void kill_inferior (void); |
c906108c | 156 | |
a14ed312 | 157 | extern void generic_mourn_inferior (void); |
c906108c | 158 | |
a790ad35 SC |
159 | extern void terminal_save_ours (void); |
160 | ||
a14ed312 | 161 | extern void terminal_ours (void); |
c906108c | 162 | |
36160dc4 | 163 | extern int run_stack_dummy (CORE_ADDR , struct regcache *); |
c906108c | 164 | |
a14ed312 | 165 | extern CORE_ADDR read_pc (void); |
c906108c | 166 | |
39f77062 | 167 | extern CORE_ADDR read_pc_pid (ptid_t); |
c906108c | 168 | |
39f77062 | 169 | extern CORE_ADDR generic_target_read_pc (ptid_t); |
0f71a2f6 | 170 | |
a14ed312 | 171 | extern void write_pc (CORE_ADDR); |
c906108c | 172 | |
39f77062 | 173 | extern void write_pc_pid (CORE_ADDR, ptid_t); |
c906108c | 174 | |
39f77062 | 175 | extern void generic_target_write_pc (CORE_ADDR, ptid_t); |
0f71a2f6 | 176 | |
a14ed312 | 177 | extern CORE_ADDR read_sp (void); |
c906108c | 178 | |
a14ed312 | 179 | extern CORE_ADDR generic_target_read_sp (void); |
0f71a2f6 | 180 | |
a14ed312 | 181 | extern void generic_target_write_sp (CORE_ADDR); |
0f71a2f6 | 182 | |
a14ed312 | 183 | extern CORE_ADDR read_fp (void); |
c906108c | 184 | |
a14ed312 | 185 | extern CORE_ADDR generic_target_read_fp (void); |
0f71a2f6 | 186 | |
66140c26 | 187 | extern CORE_ADDR unsigned_pointer_to_address (struct type *type, const void *buf); |
4478b372 | 188 | |
ac2e2ef7 AC |
189 | extern void unsigned_address_to_pointer (struct type *type, void *buf, |
190 | CORE_ADDR addr); | |
66140c26 AC |
191 | extern CORE_ADDR signed_pointer_to_address (struct type *type, |
192 | const void *buf); | |
ac2e2ef7 AC |
193 | extern void address_to_signed_pointer (struct type *type, void *buf, |
194 | CORE_ADDR addr); | |
4478b372 | 195 | |
a14ed312 | 196 | extern void wait_for_inferior (void); |
c906108c | 197 | |
a14ed312 | 198 | extern void fetch_inferior_event (void *); |
43ff13b4 | 199 | |
a14ed312 | 200 | extern void init_wait_for_inferior (void); |
c906108c | 201 | |
a14ed312 | 202 | extern void close_exec_file (void); |
c906108c | 203 | |
a14ed312 | 204 | extern void reopen_exec_file (void); |
c906108c SS |
205 | |
206 | /* The `resume' routine should only be called in special circumstances. | |
207 | Normally, use `proceed', which handles a lot of bookkeeping. */ | |
208 | ||
a14ed312 | 209 | extern void resume (int, enum target_signal); |
c906108c SS |
210 | |
211 | /* From misc files */ | |
212 | ||
0ab7a791 AC |
213 | extern void default_print_registers_info (struct gdbarch *gdbarch, |
214 | struct ui_file *file, | |
215 | struct frame_info *frame, | |
216 | int regnum, int all); | |
666e11c5 | 217 | |
a14ed312 | 218 | extern void store_inferior_registers (int); |
c906108c | 219 | |
a14ed312 | 220 | extern void fetch_inferior_registers (int); |
c906108c | 221 | |
a14ed312 | 222 | extern void solib_create_inferior_hook (void); |
c906108c | 223 | |
a14ed312 | 224 | extern void child_terminal_info (char *, int); |
c906108c | 225 | |
a14ed312 | 226 | extern void term_info (char *, int); |
c906108c | 227 | |
a14ed312 | 228 | extern void terminal_ours_for_output (void); |
c906108c | 229 | |
a14ed312 | 230 | extern void terminal_inferior (void); |
c906108c | 231 | |
a14ed312 | 232 | extern void terminal_init_inferior (void); |
c906108c | 233 | |
a14ed312 | 234 | extern void terminal_init_inferior_with_pgrp (int pgrp); |
c906108c SS |
235 | |
236 | /* From infptrace.c or infttrace.c */ | |
237 | ||
a14ed312 | 238 | extern int attach (int); |
c906108c | 239 | |
a14ed312 | 240 | extern void detach (int); |
c906108c | 241 | |
7a292a7a | 242 | /* PTRACE method of waiting for inferior process. */ |
39f77062 | 243 | int ptrace_wait (ptid_t, int *); |
c906108c | 244 | |
39f77062 | 245 | extern void child_resume (ptid_t, int, enum target_signal); |
c906108c SS |
246 | |
247 | #ifndef PTRACE_ARG3_TYPE | |
248 | #define PTRACE_ARG3_TYPE int /* Correct definition for most systems. */ | |
249 | #endif | |
250 | ||
a14ed312 | 251 | extern int call_ptrace (int, int, PTRACE_ARG3_TYPE, int); |
c906108c | 252 | |
a14ed312 | 253 | extern void pre_fork_inferior (void); |
c906108c SS |
254 | |
255 | /* From procfs.c */ | |
256 | ||
a14ed312 | 257 | extern int proc_iterate_over_mappings (int (*)(int, CORE_ADDR)); |
c906108c | 258 | |
39f77062 | 259 | extern ptid_t procfs_first_available (void); |
c906108c | 260 | |
c906108c SS |
261 | /* From fork-child.c */ |
262 | ||
a14ed312 KB |
263 | extern void fork_inferior (char *, char *, char **, |
264 | void (*)(void), | |
265 | void (*)(int), void (*)(void), char *); | |
c906108c SS |
266 | |
267 | ||
a14ed312 | 268 | extern void startup_inferior (int); |
c906108c | 269 | |
552c04a7 TT |
270 | extern char *construct_inferior_arguments (struct gdbarch *, int, char **); |
271 | ||
c906108c SS |
272 | /* From inflow.c */ |
273 | ||
a14ed312 | 274 | extern void new_tty_prefork (char *); |
c906108c | 275 | |
a14ed312 | 276 | extern int gdb_has_a_terminal (void); |
c906108c SS |
277 | |
278 | /* From infrun.c */ | |
279 | ||
a14ed312 | 280 | extern void start_remote (void); |
c906108c | 281 | |
a14ed312 | 282 | extern void normal_stop (void); |
c906108c | 283 | |
a14ed312 | 284 | extern int signal_stop_state (int); |
c906108c | 285 | |
a14ed312 | 286 | extern int signal_print_state (int); |
c906108c | 287 | |
a14ed312 | 288 | extern int signal_pass_state (int); |
c906108c | 289 | |
a14ed312 | 290 | extern int signal_stop_update (int, int); |
d4f3574e | 291 | |
a14ed312 | 292 | extern int signal_print_update (int, int); |
d4f3574e | 293 | |
a14ed312 | 294 | extern int signal_pass_update (int, int); |
d4f3574e | 295 | |
39f77062 KB |
296 | extern void get_last_target_status(ptid_t *ptid, |
297 | struct target_waitstatus *status); | |
e02bc4cc | 298 | |
6604731b DJ |
299 | extern void follow_inferior_reset_breakpoints (void); |
300 | ||
c906108c SS |
301 | /* From infcmd.c */ |
302 | ||
a14ed312 | 303 | extern void tty_command (char *, int); |
c906108c | 304 | |
a14ed312 | 305 | extern void attach_command (char *, int); |
c906108c | 306 | |
a250df2e | 307 | extern char *get_inferior_args (void); |
07091751 | 308 | |
a250df2e | 309 | extern char *set_inferior_args (char *); |
07091751 | 310 | |
552c04a7 TT |
311 | extern void set_inferior_args_vector (int, char **); |
312 | ||
36dc181b EZ |
313 | extern void registers_info (char *, int); |
314 | ||
315 | extern void nexti_command (char *, int); | |
316 | ||
317 | extern void stepi_command (char *, int); | |
318 | ||
319 | extern void continue_command (char *, int); | |
320 | ||
321 | extern void interrupt_target_command (char *args, int from_tty); | |
322 | ||
c906108c SS |
323 | /* Last signal that the inferior received (why it stopped). */ |
324 | ||
325 | extern enum target_signal stop_signal; | |
326 | ||
327 | /* Address at which inferior stopped. */ | |
328 | ||
329 | extern CORE_ADDR stop_pc; | |
330 | ||
331 | /* Chain containing status of breakpoint(s) that we have stopped at. */ | |
332 | ||
333 | extern bpstat stop_bpstat; | |
334 | ||
335 | /* Flag indicating that a command has proceeded the inferior past the | |
336 | current breakpoint. */ | |
337 | ||
338 | extern int breakpoint_proceeded; | |
339 | ||
340 | /* Nonzero if stopped due to a step command. */ | |
341 | ||
342 | extern int stop_step; | |
343 | ||
344 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
345 | ||
346 | extern int stop_stack_dummy; | |
347 | ||
348 | /* Nonzero if program stopped due to a random (unexpected) signal in | |
349 | inferior process. */ | |
350 | ||
351 | extern int stopped_by_random_signal; | |
352 | ||
353 | /* Range to single step within. | |
354 | If this is nonzero, respond to a single-step signal | |
355 | by continuing to step if the pc is in this range. | |
356 | ||
357 | If step_range_start and step_range_end are both 1, it means to step for | |
358 | a single instruction (FIXME: it might clean up wait_for_inferior in a | |
359 | minor way if this were changed to the address of the instruction and | |
360 | that address plus one. But maybe not.). */ | |
361 | ||
362 | extern CORE_ADDR step_range_start; /* Inclusive */ | |
c5aa993b | 363 | extern CORE_ADDR step_range_end; /* Exclusive */ |
c906108c SS |
364 | |
365 | /* Stack frame address as of when stepping command was issued. | |
366 | This is how we know when we step into a subroutine call, | |
367 | and how to set the frame for the breakpoint used to step out. */ | |
368 | ||
aa0cd9c1 | 369 | extern struct frame_id step_frame_id; |
c906108c SS |
370 | |
371 | /* Our notion of the current stack pointer. */ | |
372 | ||
373 | extern CORE_ADDR step_sp; | |
374 | ||
375 | /* 1 means step over all subroutine calls. | |
376 | -1 means step over calls to undebuggable functions. */ | |
377 | ||
5fbbeb29 CF |
378 | enum step_over_calls_kind |
379 | { | |
380 | STEP_OVER_NONE, | |
381 | STEP_OVER_ALL, | |
a4acd088 CF |
382 | STEP_OVER_UNDEBUGGABLE |
383 | }; | |
384 | ||
385 | extern enum step_over_calls_kind step_over_calls; | |
c906108c SS |
386 | |
387 | /* If stepping, nonzero means step count is > 1 | |
388 | so don't print frame next time inferior stops | |
389 | if it stops due to stepping. */ | |
390 | ||
391 | extern int step_multi; | |
392 | ||
c54cfec8 EZ |
393 | /* Nonzero means expecting a trap and caller will handle it |
394 | themselves. It is used when running in the shell before the child | |
395 | program has been exec'd; and when running some kinds of remote | |
396 | stuff (FIXME?). */ | |
397 | ||
398 | /* It is also used after attach, due to attaching to a process. This | |
399 | is a bit trickier. When doing an attach, the kernel stops the | |
400 | debuggee with a SIGSTOP. On newer GNU/Linux kernels (>= 2.5.61) | |
401 | the handling of SIGSTOP for a ptraced process has changed. Earlier | |
402 | versions of the kernel would ignore these SIGSTOPs, while now | |
403 | SIGSTOP is treated like any other signal, i.e. it is not muffled. | |
404 | ||
405 | If the gdb user does a 'continue' after the 'attach', gdb passes | |
406 | the global variable stop_signal (which stores the signal from the | |
407 | attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is | |
408 | problematic, because the kernel doesn't ignore such SIGSTOP | |
409 | now. I.e. it is reported back to gdb, which in turn presents it | |
410 | back to the user. | |
411 | ||
412 | To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows | |
413 | gdb to clear the value of stop_signal after the attach, so that it | |
414 | is not passed back down to the kernel. */ | |
415 | ||
416 | enum stop_kind | |
417 | { | |
418 | NO_STOP_QUIETLY = 0, | |
419 | STOP_QUIETLY, | |
420 | STOP_QUIETLY_NO_SIGSTOP | |
421 | }; | |
c906108c | 422 | |
c0236d92 | 423 | extern enum stop_kind stop_soon; |
c906108c SS |
424 | |
425 | /* Nonzero if proceed is being used for a "finish" command or a similar | |
426 | situation when stop_registers should be saved. */ | |
427 | ||
428 | extern int proceed_to_finish; | |
429 | ||
430 | /* Save register contents here when about to pop a stack dummy frame, | |
431 | if-and-only-if proceed_to_finish is set. | |
432 | Thus this contains the return value from the called function (assuming | |
433 | values are returned in a register). */ | |
434 | ||
72cec141 | 435 | extern struct regcache *stop_registers; |
c906108c | 436 | |
39f77062 | 437 | /* Nonzero if the child process in inferior_ptid was attached rather |
c906108c SS |
438 | than forked. */ |
439 | ||
440 | extern int attach_flag; | |
441 | \f | |
c906108c SS |
442 | /* Possible values for CALL_DUMMY_LOCATION. */ |
443 | #define ON_STACK 1 | |
c906108c SS |
444 | #define AT_ENTRY_POINT 4 |
445 | ||
ba886e9d AC |
446 | /* FIXME: cagney/2000-04-17: gdbarch should manage this. The default |
447 | shouldn't be necessary. */ | |
448 | ||
7a292a7a | 449 | #if !defined PUSH_DUMMY_FRAME |
8e65ff28 | 450 | #define PUSH_DUMMY_FRAME (internal_error (__FILE__, __LINE__, "PUSH_DUMMY_FRAME"), 0) |
7a292a7a | 451 | #endif |
7a292a7a SS |
452 | |
453 | #if !defined STORE_STRUCT_RETURN | |
8e65ff28 | 454 | #define STORE_STRUCT_RETURN(a1,a2) (internal_error (__FILE__, __LINE__, "STORE_STRUCT_RETURN"), 0) |
7a292a7a SS |
455 | #endif |
456 | ||
457 | ||
458 | /* Are we in a call dummy? */ | |
459 | ||
b4b88177 AC |
460 | /* NOTE: cagney/2002-11-24: Targets need to both switch to generic |
461 | dummy frames, and use generic_pc_in_call_dummy(). The generic | |
462 | version should be able to handle all cases since that code works by | |
463 | saving the address of the dummy's breakpoint (where ever it is). */ | |
464 | ||
465 | extern int deprecated_pc_in_call_dummy_on_stack (CORE_ADDR pc, | |
466 | CORE_ADDR sp, | |
467 | CORE_ADDR frame_address); | |
7a292a7a | 468 | |
b4b88177 AC |
469 | /* NOTE: cagney/2002-11-24: Targets need to both switch to generic |
470 | dummy frames, and use generic_pc_in_call_dummy(). The generic | |
471 | version should be able to handle all cases since that code works by | |
472 | saving the address of the dummy's breakpoint (where ever it is). */ | |
473 | ||
474 | extern int deprecated_pc_in_call_dummy_at_entry_point (CORE_ADDR pc, | |
475 | CORE_ADDR sp, | |
476 | CORE_ADDR frame_address); | |
c906108c SS |
477 | |
478 | /* It's often not enough for our clients to know whether the PC is merely | |
479 | somewhere within the call dummy. They may need to know whether the | |
480 | call dummy has actually completed. (For example, wait_for_inferior | |
481 | wants to know when it should truly stop because the call dummy has | |
482 | completed. If we're single-stepping because of slow watchpoints, | |
483 | then we may find ourselves stopped at the entry of the call dummy, | |
484 | and want to continue stepping until we reach the end.) | |
485 | ||
486 | Note that this macro is intended for targets (like HP-UX) which | |
487 | require more than a single breakpoint in their call dummies, and | |
488 | therefore cannot use the CALL_DUMMY_BREAKPOINT_OFFSET mechanism. | |
489 | ||
490 | If a target does define CALL_DUMMY_BREAKPOINT_OFFSET, then this | |
491 | default implementation of CALL_DUMMY_HAS_COMPLETED is sufficient. | |
492 | Else, a target may wish to supply an implementation that works in | |
493 | the presense of multiple breakpoints in its call dummy. | |
c5aa993b | 494 | */ |
c906108c SS |
495 | #if !defined(CALL_DUMMY_HAS_COMPLETED) |
496 | #define CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \ | |
ae45cd16 | 497 | DEPRECATED_PC_IN_CALL_DUMMY((pc), (sp), (frame_address)) |
c906108c SS |
498 | #endif |
499 | ||
500 | /* If STARTUP_WITH_SHELL is set, GDB's "run" | |
501 | will attempts to start up the debugee under a shell. | |
502 | This is in order for argument-expansion to occur. E.g., | |
503 | (gdb) run * | |
504 | The "*" gets expanded by the shell into a list of files. | |
505 | While this is a nice feature, it turns out to interact badly | |
506 | with some of the catch-fork/catch-exec features we have added. | |
507 | In particular, if the shell does any fork/exec's before | |
508 | the exec of the target program, that can confuse GDB. | |
509 | To disable this feature, set STARTUP_WITH_SHELL to 0. | |
510 | To enable this feature, set STARTUP_WITH_SHELL to 1. | |
511 | The catch-exec traps expected during start-up will | |
512 | be 1 if target is not started up with a shell, 2 if it is. | |
513 | - RT | |
514 | If you disable this, you need to decrement | |
515 | START_INFERIOR_TRAPS_EXPECTED in tm.h. */ | |
516 | #define STARTUP_WITH_SHELL 1 | |
517 | #if !defined(START_INFERIOR_TRAPS_EXPECTED) | |
518 | #define START_INFERIOR_TRAPS_EXPECTED 2 | |
519 | #endif | |
520 | #endif /* !defined (INFERIOR_H) */ |