Commit | Line | Data |
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c906108c SS |
1 | /* Variables that describe the inferior process running under GDB: |
2 | Where it is, why it stopped, and how to step it. | |
3 | Copyright 1986, 1989, 1992, 1996, 1998 Free Software Foundation, Inc. | |
4 | ||
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
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. | |
c906108c | 11 | |
c5aa993b JM |
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. | |
c906108c | 16 | |
c5aa993b JM |
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, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #if !defined (INFERIOR_H) | |
23 | #define INFERIOR_H 1 | |
24 | ||
25 | /* For bpstat. */ | |
26 | #include "breakpoint.h" | |
27 | ||
28 | /* For enum target_signal. */ | |
29 | #include "target.h" | |
30 | ||
7a292a7a | 31 | /* Structure in which to save the status of the inferior. Create/Save |
c906108c SS |
32 | through "save_inferior_status", restore through |
33 | "restore_inferior_status". | |
7a292a7a | 34 | |
c906108c SS |
35 | This pair of routines should be called around any transfer of |
36 | control to the inferior which you don't want showing up in your | |
37 | control variables. */ | |
38 | ||
7a292a7a | 39 | struct inferior_status; |
7a292a7a SS |
40 | |
41 | extern struct inferior_status *save_inferior_status PARAMS ((int)); | |
42 | ||
43 | extern void restore_inferior_status PARAMS ((struct inferior_status *)); | |
44 | ||
45 | extern void discard_inferior_status PARAMS ((struct inferior_status *)); | |
46 | ||
c5aa993b | 47 | extern void write_inferior_status_register PARAMS ((struct inferior_status * inf_status, int regno, LONGEST val)); |
c906108c SS |
48 | |
49 | /* This macro gives the number of registers actually in use by the | |
50 | inferior. This may be less than the total number of registers, | |
51 | perhaps depending on the actual CPU in use or program being run. */ | |
52 | ||
53 | #ifndef ARCH_NUM_REGS | |
54 | #define ARCH_NUM_REGS NUM_REGS | |
55 | #endif | |
56 | ||
c906108c SS |
57 | extern void set_sigint_trap PARAMS ((void)); |
58 | ||
59 | extern void clear_sigint_trap PARAMS ((void)); | |
60 | ||
61 | extern void set_sigio_trap PARAMS ((void)); | |
62 | ||
63 | extern void clear_sigio_trap PARAMS ((void)); | |
64 | ||
65 | /* File name for default use for standard in/out in the inferior. */ | |
66 | ||
67 | extern char *inferior_io_terminal; | |
68 | ||
69 | /* Pid of our debugged inferior, or 0 if no inferior now. */ | |
70 | ||
71 | extern int inferior_pid; | |
72 | ||
43ff13b4 JM |
73 | /* Is the inferior running right now, as a result of a 'run&', |
74 | 'continue&' etc command? This is used in asycn gdb to determine | |
75 | whether a command that the user enters while the target is running | |
76 | is allowed or not. */ | |
77 | extern int target_executing; | |
78 | ||
79 | /* Are we simulating synchronous execution? This is used in async gdb | |
80 | to implement the 'run', 'continue' etc commands, which will not | |
81 | redisplay the prompt until the execution is actually over. */ | |
82 | extern int sync_execution; | |
83 | ||
c906108c SS |
84 | /* This is only valid when inferior_pid is non-zero. |
85 | ||
86 | If this is 0, then exec events should be noticed and responded to | |
87 | by the debugger (i.e., be reported to the user). | |
88 | ||
89 | If this is > 0, then that many subsequent exec events should be | |
90 | ignored (i.e., not be reported to the user). | |
c5aa993b | 91 | */ |
c906108c SS |
92 | extern int inferior_ignoring_startup_exec_events; |
93 | ||
94 | /* This is only valid when inferior_ignoring_startup_exec_events is | |
95 | zero. | |
96 | ||
97 | Some targets (stupidly) report more than one exec event per actual | |
98 | call to an event() system call. If only the last such exec event | |
99 | need actually be noticed and responded to by the debugger (i.e., | |
100 | be reported to the user), then this is the number of "leading" | |
101 | exec events which should be ignored. | |
c5aa993b | 102 | */ |
c906108c SS |
103 | extern int inferior_ignoring_leading_exec_events; |
104 | ||
105 | /* Inferior environment. */ | |
106 | ||
107 | extern struct environ *inferior_environ; | |
108 | ||
7a292a7a SS |
109 | /* Character array containing an image of the inferior programs' |
110 | registers. */ | |
c906108c | 111 | |
7a292a7a | 112 | extern char *registers; |
c906108c | 113 | |
7a292a7a SS |
114 | /* Character array containing the current state of each register |
115 | (unavailable<0, valid=0, invalid>0). */ | |
c906108c | 116 | |
7a292a7a | 117 | extern signed char *register_valid; |
c906108c SS |
118 | |
119 | extern void clear_proceed_status PARAMS ((void)); | |
120 | ||
121 | extern void proceed PARAMS ((CORE_ADDR, enum target_signal, int)); | |
122 | ||
123 | extern void kill_inferior PARAMS ((void)); | |
124 | ||
125 | extern void generic_mourn_inferior PARAMS ((void)); | |
126 | ||
127 | extern void terminal_ours PARAMS ((void)); | |
128 | ||
c5aa993b | 129 | extern int run_stack_dummy PARAMS ((CORE_ADDR, char *)); |
c906108c SS |
130 | |
131 | extern CORE_ADDR read_pc PARAMS ((void)); | |
132 | ||
133 | extern CORE_ADDR read_pc_pid PARAMS ((int)); | |
134 | ||
0f71a2f6 JM |
135 | extern CORE_ADDR generic_target_read_pc PARAMS ((int)); |
136 | ||
c906108c SS |
137 | extern void write_pc PARAMS ((CORE_ADDR)); |
138 | ||
139 | extern void write_pc_pid PARAMS ((CORE_ADDR, int)); | |
140 | ||
0f71a2f6 JM |
141 | extern void generic_target_write_pc PARAMS ((CORE_ADDR, int)); |
142 | ||
c906108c SS |
143 | extern CORE_ADDR read_sp PARAMS ((void)); |
144 | ||
0f71a2f6 JM |
145 | extern CORE_ADDR generic_target_read_sp PARAMS ((void)); |
146 | ||
c906108c SS |
147 | extern void write_sp PARAMS ((CORE_ADDR)); |
148 | ||
0f71a2f6 JM |
149 | extern void generic_target_write_sp PARAMS ((CORE_ADDR)); |
150 | ||
c906108c SS |
151 | extern CORE_ADDR read_fp PARAMS ((void)); |
152 | ||
0f71a2f6 JM |
153 | extern CORE_ADDR generic_target_read_fp PARAMS ((void)); |
154 | ||
c906108c SS |
155 | extern void write_fp PARAMS ((CORE_ADDR)); |
156 | ||
0f71a2f6 JM |
157 | extern void generic_target_write_fp PARAMS ((CORE_ADDR)); |
158 | ||
c906108c SS |
159 | extern void wait_for_inferior PARAMS ((void)); |
160 | ||
c2c6d25f | 161 | extern void fetch_inferior_event PARAMS ((void *)); |
43ff13b4 | 162 | |
c906108c SS |
163 | extern void init_wait_for_inferior PARAMS ((void)); |
164 | ||
165 | extern void close_exec_file PARAMS ((void)); | |
166 | ||
167 | extern void reopen_exec_file PARAMS ((void)); | |
168 | ||
169 | /* The `resume' routine should only be called in special circumstances. | |
170 | Normally, use `proceed', which handles a lot of bookkeeping. */ | |
171 | ||
172 | extern void resume PARAMS ((int, enum target_signal)); | |
173 | ||
174 | /* From misc files */ | |
175 | ||
176 | extern void store_inferior_registers PARAMS ((int)); | |
177 | ||
178 | extern void fetch_inferior_registers PARAMS ((int)); | |
179 | ||
180 | extern void solib_create_inferior_hook PARAMS ((void)); | |
181 | ||
182 | extern void child_terminal_info PARAMS ((char *, int)); | |
183 | ||
184 | extern void term_info PARAMS ((char *, int)); | |
185 | ||
186 | extern void terminal_ours_for_output PARAMS ((void)); | |
187 | ||
188 | extern void terminal_inferior PARAMS ((void)); | |
189 | ||
190 | extern void terminal_init_inferior PARAMS ((void)); | |
191 | ||
192 | extern void terminal_init_inferior_with_pgrp PARAMS ((int pgrp)); | |
193 | ||
194 | /* From infptrace.c or infttrace.c */ | |
195 | ||
196 | extern int attach PARAMS ((int)); | |
197 | ||
198 | #if !defined(REQUIRE_ATTACH) | |
199 | #define REQUIRE_ATTACH attach | |
200 | #endif | |
201 | ||
202 | #if !defined(REQUIRE_DETACH) | |
203 | #define REQUIRE_DETACH(pid,siggnal) detach (siggnal) | |
204 | #endif | |
205 | ||
206 | extern void detach PARAMS ((int)); | |
207 | ||
7a292a7a | 208 | /* PTRACE method of waiting for inferior process. */ |
c906108c SS |
209 | int ptrace_wait PARAMS ((int, int *)); |
210 | ||
211 | extern void child_resume PARAMS ((int, int, enum target_signal)); | |
212 | ||
213 | #ifndef PTRACE_ARG3_TYPE | |
214 | #define PTRACE_ARG3_TYPE int /* Correct definition for most systems. */ | |
215 | #endif | |
216 | ||
217 | extern int call_ptrace PARAMS ((int, int, PTRACE_ARG3_TYPE, int)); | |
218 | ||
219 | extern void pre_fork_inferior PARAMS ((void)); | |
220 | ||
221 | /* From procfs.c */ | |
222 | ||
223 | extern int proc_iterate_over_mappings PARAMS ((int (*)(int, CORE_ADDR))); | |
224 | ||
225 | extern int procfs_first_available PARAMS ((void)); | |
226 | ||
227 | extern int procfs_get_pid_fd PARAMS ((int)); | |
228 | ||
229 | /* From fork-child.c */ | |
230 | ||
231 | extern void fork_inferior PARAMS ((char *, char *, char **, | |
232 | void (*)(void), | |
233 | void (*)(int), | |
234 | void (*)(void), | |
235 | char *)); | |
236 | ||
237 | ||
238 | extern void | |
239 | clone_and_follow_inferior PARAMS ((int, int *)); | |
240 | ||
241 | extern void startup_inferior PARAMS ((int)); | |
242 | ||
243 | /* From inflow.c */ | |
244 | ||
245 | extern void new_tty_prefork PARAMS ((char *)); | |
246 | ||
247 | extern int gdb_has_a_terminal PARAMS ((void)); | |
248 | ||
249 | /* From infrun.c */ | |
250 | ||
251 | extern void start_remote PARAMS ((void)); | |
252 | ||
253 | extern void normal_stop PARAMS ((void)); | |
254 | ||
255 | extern int signal_stop_state PARAMS ((int)); | |
256 | ||
257 | extern int signal_print_state PARAMS ((int)); | |
258 | ||
259 | extern int signal_pass_state PARAMS ((int)); | |
260 | ||
d4f3574e SS |
261 | extern int signal_stop_update PARAMS ((int, int)); |
262 | ||
263 | extern int signal_print_update PARAMS ((int, int)); | |
264 | ||
265 | extern int signal_pass_update PARAMS ((int, int)); | |
266 | ||
c906108c SS |
267 | /* From infcmd.c */ |
268 | ||
269 | extern void tty_command PARAMS ((char *, int)); | |
270 | ||
271 | extern void attach_command PARAMS ((char *, int)); | |
272 | ||
273 | /* Last signal that the inferior received (why it stopped). */ | |
274 | ||
275 | extern enum target_signal stop_signal; | |
276 | ||
277 | /* Address at which inferior stopped. */ | |
278 | ||
279 | extern CORE_ADDR stop_pc; | |
280 | ||
281 | /* Chain containing status of breakpoint(s) that we have stopped at. */ | |
282 | ||
283 | extern bpstat stop_bpstat; | |
284 | ||
285 | /* Flag indicating that a command has proceeded the inferior past the | |
286 | current breakpoint. */ | |
287 | ||
288 | extern int breakpoint_proceeded; | |
289 | ||
290 | /* Nonzero if stopped due to a step command. */ | |
291 | ||
292 | extern int stop_step; | |
293 | ||
294 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
295 | ||
296 | extern int stop_stack_dummy; | |
297 | ||
298 | /* Nonzero if program stopped due to a random (unexpected) signal in | |
299 | inferior process. */ | |
300 | ||
301 | extern int stopped_by_random_signal; | |
302 | ||
303 | /* Range to single step within. | |
304 | If this is nonzero, respond to a single-step signal | |
305 | by continuing to step if the pc is in this range. | |
306 | ||
307 | If step_range_start and step_range_end are both 1, it means to step for | |
308 | a single instruction (FIXME: it might clean up wait_for_inferior in a | |
309 | minor way if this were changed to the address of the instruction and | |
310 | that address plus one. But maybe not.). */ | |
311 | ||
312 | extern CORE_ADDR step_range_start; /* Inclusive */ | |
c5aa993b | 313 | extern CORE_ADDR step_range_end; /* Exclusive */ |
c906108c SS |
314 | |
315 | /* Stack frame address as of when stepping command was issued. | |
316 | This is how we know when we step into a subroutine call, | |
317 | and how to set the frame for the breakpoint used to step out. */ | |
318 | ||
319 | extern CORE_ADDR step_frame_address; | |
320 | ||
321 | /* Our notion of the current stack pointer. */ | |
322 | ||
323 | extern CORE_ADDR step_sp; | |
324 | ||
325 | /* 1 means step over all subroutine calls. | |
326 | -1 means step over calls to undebuggable functions. */ | |
327 | ||
328 | extern int step_over_calls; | |
329 | ||
330 | /* If stepping, nonzero means step count is > 1 | |
331 | so don't print frame next time inferior stops | |
332 | if it stops due to stepping. */ | |
333 | ||
334 | extern int step_multi; | |
335 | ||
336 | /* Nonzero means expecting a trap and caller will handle it themselves. | |
337 | It is used after attach, due to attaching to a process; | |
338 | when running in the shell before the child program has been exec'd; | |
339 | and when running some kinds of remote stuff (FIXME?). */ | |
340 | ||
341 | extern int stop_soon_quietly; | |
342 | ||
343 | /* Nonzero if proceed is being used for a "finish" command or a similar | |
344 | situation when stop_registers should be saved. */ | |
345 | ||
346 | extern int proceed_to_finish; | |
347 | ||
348 | /* Save register contents here when about to pop a stack dummy frame, | |
349 | if-and-only-if proceed_to_finish is set. | |
350 | Thus this contains the return value from the called function (assuming | |
351 | values are returned in a register). */ | |
352 | ||
7a292a7a | 353 | extern char *stop_registers; |
c906108c SS |
354 | |
355 | /* Nonzero if the child process in inferior_pid was attached rather | |
356 | than forked. */ | |
357 | ||
358 | extern int attach_flag; | |
359 | \f | |
360 | /* Sigtramp is a routine that the kernel calls (which then calls the | |
361 | signal handler). On most machines it is a library routine that | |
362 | is linked into the executable. | |
363 | ||
364 | This macro, given a program counter value and the name of the | |
365 | function in which that PC resides (which can be null if the | |
366 | name is not known), returns nonzero if the PC and name show | |
367 | that we are in sigtramp. | |
368 | ||
369 | On most machines just see if the name is sigtramp (and if we have | |
370 | no name, assume we are not in sigtramp). */ | |
371 | #if !defined (IN_SIGTRAMP) | |
372 | #if defined (SIGTRAMP_START) | |
373 | #define IN_SIGTRAMP(pc, name) \ | |
374 | ((pc) >= SIGTRAMP_START(pc) \ | |
375 | && (pc) < SIGTRAMP_END(pc) \ | |
376 | ) | |
377 | #else | |
378 | #define IN_SIGTRAMP(pc, name) \ | |
379 | (name && STREQ ("_sigtramp", name)) | |
380 | #endif | |
381 | #endif | |
382 | \f | |
383 | /* Possible values for CALL_DUMMY_LOCATION. */ | |
384 | #define ON_STACK 1 | |
385 | #define BEFORE_TEXT_END 2 | |
386 | #define AFTER_TEXT_END 3 | |
387 | #define AT_ENTRY_POINT 4 | |
388 | ||
7a292a7a SS |
389 | #if !defined (USE_GENERIC_DUMMY_FRAMES) |
390 | #define USE_GENERIC_DUMMY_FRAMES 0 | |
391 | #endif | |
392 | ||
c906108c SS |
393 | #if !defined (CALL_DUMMY_LOCATION) |
394 | #define CALL_DUMMY_LOCATION ON_STACK | |
395 | #endif /* No CALL_DUMMY_LOCATION. */ | |
396 | ||
7a292a7a | 397 | #if !defined (CALL_DUMMY_ADDRESS) |
11cf8741 | 398 | #define CALL_DUMMY_ADDRESS() (internal_error ("CALL_DUMMY_ADDRESS"), 0) |
7a292a7a SS |
399 | #endif |
400 | #if !defined (CALL_DUMMY_START_OFFSET) | |
11cf8741 | 401 | #define CALL_DUMMY_START_OFFSET (internal_error ("CALL_DUMMY_START_OFFSET"), 0) |
7a292a7a SS |
402 | #endif |
403 | #if !defined (CALL_DUMMY_BREAKPOINT_OFFSET) | |
404 | #define CALL_DUMMY_BREAKPOINT_OFFSET_P (0) | |
11cf8741 | 405 | #define CALL_DUMMY_BREAKPOINT_OFFSET (internal_error ("CALL_DUMMY_BREAKPOINT_OFFSET"), 0) |
7a292a7a SS |
406 | #endif |
407 | #if !defined CALL_DUMMY_BREAKPOINT_OFFSET_P | |
408 | #define CALL_DUMMY_BREAKPOINT_OFFSET_P (1) | |
409 | #endif | |
410 | #if !defined (CALL_DUMMY_LENGTH) | |
11cf8741 | 411 | #define CALL_DUMMY_LENGTH (internal_error ("CALL_DUMMY_LENGTH"), 0) |
7a292a7a SS |
412 | #endif |
413 | ||
414 | #if defined (CALL_DUMMY_STACK_ADJUST) | |
415 | #if !defined (CALL_DUMMY_STACK_ADJUST_P) | |
416 | #define CALL_DUMMY_STACK_ADJUST_P (1) | |
417 | #endif | |
418 | #endif | |
419 | #if !defined (CALL_DUMMY_STACK_ADJUST) | |
11cf8741 | 420 | #define CALL_DUMMY_STACK_ADJUST (internal_error ("CALL_DUMMY_STACK_ADJUST"), 0) |
7a292a7a SS |
421 | #endif |
422 | #if !defined (CALL_DUMMY_STACK_ADJUST_P) | |
423 | #define CALL_DUMMY_STACK_ADJUST_P (0) | |
424 | #endif | |
425 | ||
426 | #if !defined (CALL_DUMMY_P) | |
427 | #if defined (CALL_DUMMY) | |
428 | #define CALL_DUMMY_P 1 | |
429 | #else | |
430 | #define CALL_DUMMY_P 0 | |
431 | #endif | |
432 | #endif | |
433 | ||
434 | #if !defined (CALL_DUMMY_WORDS) | |
435 | #if defined (CALL_DUMMY) | |
436 | extern LONGEST call_dummy_words[]; | |
437 | #define CALL_DUMMY_WORDS (call_dummy_words) | |
438 | #else | |
11cf8741 | 439 | #define CALL_DUMMY_WORDS (internal_error ("CALL_DUMMY_WORDS"), (void*) 0) |
7a292a7a SS |
440 | #endif |
441 | #endif | |
442 | ||
443 | #if !defined (SIZEOF_CALL_DUMMY_WORDS) | |
444 | #if defined (CALL_DUMMY) | |
445 | extern int sizeof_call_dummy_words; | |
446 | #define SIZEOF_CALL_DUMMY_WORDS (sizeof_call_dummy_words) | |
447 | #else | |
11cf8741 | 448 | #define SIZEOF_CALL_DUMMY_WORDS (internal_error ("SIZEOF_CALL_DUMMY_WORDS"), 0) |
7a292a7a SS |
449 | #endif |
450 | #endif | |
451 | ||
452 | #if !defined PUSH_DUMMY_FRAME | |
11cf8741 | 453 | #define PUSH_DUMMY_FRAME (internal_error ("PUSH_DUMMY_FRAME"), 0) |
7a292a7a SS |
454 | #endif |
455 | ||
456 | #if !defined FIX_CALL_DUMMY | |
11cf8741 | 457 | #define FIX_CALL_DUMMY(a1,a2,a3,a4,a5,a6,a7) (internal_error ("FIX_CALL_DUMMY"), 0) |
7a292a7a SS |
458 | #endif |
459 | ||
460 | #if !defined STORE_STRUCT_RETURN | |
11cf8741 | 461 | #define STORE_STRUCT_RETURN(a1,a2) (internal_error ("STORE_STRUCT_RETURN"), 0) |
7a292a7a SS |
462 | #endif |
463 | ||
464 | ||
465 | /* Are we in a call dummy? */ | |
466 | ||
467 | extern int pc_in_call_dummy_before_text_end PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address)); | |
0f71a2f6 | 468 | #if !GDB_MULTI_ARCH |
7a292a7a SS |
469 | #if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == BEFORE_TEXT_END |
470 | #define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_before_text_end (pc, sp, frame_address) | |
c906108c | 471 | #endif /* Before text_end. */ |
0f71a2f6 | 472 | #endif |
c906108c | 473 | |
7a292a7a | 474 | extern int pc_in_call_dummy_after_text_end PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address)); |
0f71a2f6 | 475 | #if !GDB_MULTI_ARCH |
7a292a7a | 476 | #if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AFTER_TEXT_END |
c5aa993b | 477 | #define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_after_text_end (pc, sp, frame_address) |
7a292a7a | 478 | #endif |
0f71a2f6 | 479 | #endif |
7a292a7a SS |
480 | |
481 | extern int pc_in_call_dummy_on_stack PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address)); | |
0f71a2f6 | 482 | #if !GDB_MULTI_ARCH |
7a292a7a SS |
483 | #if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == ON_STACK |
484 | #define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_on_stack (pc, sp, frame_address) | |
485 | #endif | |
0f71a2f6 | 486 | #endif |
7a292a7a SS |
487 | |
488 | extern int pc_in_call_dummy_at_entry_point PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address)); | |
0f71a2f6 | 489 | #if !GDB_MULTI_ARCH |
7a292a7a SS |
490 | #if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AT_ENTRY_POINT |
491 | #define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_at_entry_point (pc, sp, frame_address) | |
492 | #endif | |
0f71a2f6 | 493 | #endif |
c906108c SS |
494 | |
495 | /* It's often not enough for our clients to know whether the PC is merely | |
496 | somewhere within the call dummy. They may need to know whether the | |
497 | call dummy has actually completed. (For example, wait_for_inferior | |
498 | wants to know when it should truly stop because the call dummy has | |
499 | completed. If we're single-stepping because of slow watchpoints, | |
500 | then we may find ourselves stopped at the entry of the call dummy, | |
501 | and want to continue stepping until we reach the end.) | |
502 | ||
503 | Note that this macro is intended for targets (like HP-UX) which | |
504 | require more than a single breakpoint in their call dummies, and | |
505 | therefore cannot use the CALL_DUMMY_BREAKPOINT_OFFSET mechanism. | |
506 | ||
507 | If a target does define CALL_DUMMY_BREAKPOINT_OFFSET, then this | |
508 | default implementation of CALL_DUMMY_HAS_COMPLETED is sufficient. | |
509 | Else, a target may wish to supply an implementation that works in | |
510 | the presense of multiple breakpoints in its call dummy. | |
c5aa993b | 511 | */ |
c906108c SS |
512 | #if !defined(CALL_DUMMY_HAS_COMPLETED) |
513 | #define CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \ | |
514 | PC_IN_CALL_DUMMY((pc), (sp), (frame_address)) | |
515 | #endif | |
516 | ||
517 | /* If STARTUP_WITH_SHELL is set, GDB's "run" | |
518 | will attempts to start up the debugee under a shell. | |
519 | This is in order for argument-expansion to occur. E.g., | |
520 | (gdb) run * | |
521 | The "*" gets expanded by the shell into a list of files. | |
522 | While this is a nice feature, it turns out to interact badly | |
523 | with some of the catch-fork/catch-exec features we have added. | |
524 | In particular, if the shell does any fork/exec's before | |
525 | the exec of the target program, that can confuse GDB. | |
526 | To disable this feature, set STARTUP_WITH_SHELL to 0. | |
527 | To enable this feature, set STARTUP_WITH_SHELL to 1. | |
528 | The catch-exec traps expected during start-up will | |
529 | be 1 if target is not started up with a shell, 2 if it is. | |
530 | - RT | |
531 | If you disable this, you need to decrement | |
532 | START_INFERIOR_TRAPS_EXPECTED in tm.h. */ | |
533 | #define STARTUP_WITH_SHELL 1 | |
534 | #if !defined(START_INFERIOR_TRAPS_EXPECTED) | |
535 | #define START_INFERIOR_TRAPS_EXPECTED 2 | |
536 | #endif | |
537 | #endif /* !defined (INFERIOR_H) */ |