/* Multi-process/thread control defs for GDB, the GNU debugger.
- Copyright 1987, 88, 89, 90, 91, 92, 1993, 1998
-
+ Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1997, 1998, 1999,
+ 2000, 2007 Free Software Foundation, Inc.
Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
- Free Software Foundation, Inc.
+
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef GDBTHREAD_H
#define GDBTHREAD_H
+struct breakpoint;
+struct frame_id;
+struct symtab;
+
/* For bpstat */
#include "breakpoint.h"
-extern void init_thread_list PARAMS ((void));
-
-extern void add_thread PARAMS ((int pid));
-
-extern void delete_thread PARAMS ((int));
-
-extern int thread_id_to_pid PARAMS ((int));
-
-extern int in_thread_list PARAMS ((int pid));
+/* For struct frame_id. */
+#include "frame.h"
-extern int pid_to_thread_id PARAMS ((int pid));
-
-extern int valid_thread_id PARAMS ((int thread));
-
-extern void load_infrun_state PARAMS ((int, CORE_ADDR *, CORE_ADDR *, char **,
- int *, struct breakpoint **,
- struct breakpoint **, CORE_ADDR *,
- CORE_ADDR *, CORE_ADDR *, int *, int *,
- int *, bpstat *, int *));
-
-extern void save_infrun_state PARAMS ((int, CORE_ADDR, CORE_ADDR, char *,
- int, struct breakpoint *,
- struct breakpoint *, CORE_ADDR,
- CORE_ADDR, CORE_ADDR, int, int,
- int, bpstat, int));
+struct thread_info
+{
+ struct thread_info *next;
+ ptid_t ptid; /* "Actual process id";
+ In fact, this may be overloaded with
+ kernel thread id, etc. */
+ int num; /* Convenient handle (GDB thread id) */
+ /* State from wait_for_inferior */
+ CORE_ADDR prev_pc;
+ struct breakpoint *step_resume_breakpoint;
+ CORE_ADDR step_range_start;
+ CORE_ADDR step_range_end;
+ struct frame_id step_frame_id;
+ int current_line;
+ struct symtab *current_symtab;
+ int trap_expected;
+ int handling_longjmp;
+ int another_trap;
+
+ /* This is set TRUE when a catchpoint of a shared library event
+ triggers. Since we don't wish to leave the inferior in the
+ solib hook when we report the event, we step the inferior
+ back to user code before stopping and reporting the event. */
+ int stepping_through_solib_after_catch;
+
+ /* When stepping_through_solib_after_catch is TRUE, this is a
+ list of the catchpoints that should be reported as triggering
+ when we finally do stop stepping. */
+ bpstat stepping_through_solib_catchpoints;
+
+ /* Private data used by the target vector implementation. */
+ struct private_thread_info *private;
+};
+
+/* Create an empty thread list, or empty the existing one. */
+extern void init_thread_list (void);
+
+/* Add a thread to the thread list.
+ Note that add_thread now returns the handle of the new thread,
+ so that the caller may initialize the private thread data. */
+extern struct thread_info *add_thread (ptid_t ptid);
+
+/* Delete an existing thread list entry. */
+extern void delete_thread (ptid_t);
+
+/* Delete a step_resume_breakpoint from the thread database. */
+extern void delete_step_resume_breakpoint (void *);
+
+/* Translate the integer thread id (GDB's homegrown id, not the system's)
+ into a "pid" (which may be overloaded with extra thread information). */
+extern ptid_t thread_id_to_pid (int);
+
+/* Translate a 'pid' (which may be overloaded with extra thread information)
+ into the integer thread id (GDB's homegrown id, not the system's). */
+extern int pid_to_thread_id (ptid_t ptid);
+
+/* Boolean test for an already-known pid (which may be overloaded with
+ extra thread information). */
+extern int in_thread_list (ptid_t ptid);
+
+/* Boolean test for an already-known thread id (GDB's homegrown id,
+ not the system's). */
+extern int valid_thread_id (int thread);
+
+/* Search function to lookup a thread by 'pid'. */
+extern struct thread_info *find_thread_pid (ptid_t ptid);
+
+/* Iterator function to call a user-provided callback function
+ once for each known thread. */
+typedef int (*thread_callback_func) (struct thread_info *, void *);
+extern struct thread_info *iterate_over_threads (thread_callback_func, void *);
+
+/* infrun context switch: save the debugger state for the given thread. */
+extern void save_infrun_state (ptid_t ptid,
+ CORE_ADDR prev_pc,
+ int trap_expected,
+ struct breakpoint *step_resume_breakpoint,
+ CORE_ADDR step_range_start,
+ CORE_ADDR step_range_end,
+ const struct frame_id *step_frame_id,
+ int handling_longjmp,
+ int another_trap,
+ int stepping_through_solib_after_catch,
+ bpstat stepping_through_solib_catchpoints,
+ int current_line,
+ struct symtab *current_symtab);
+
+/* infrun context switch: load the debugger state previously saved
+ for the given thread. */
+extern void load_infrun_state (ptid_t ptid,
+ CORE_ADDR *prev_pc,
+ int *trap_expected,
+ struct breakpoint **step_resume_breakpoint,
+ CORE_ADDR *step_range_start,
+ CORE_ADDR *step_range_end,
+ struct frame_id *step_frame_id,
+ int *handling_longjmp,
+ int *another_trap,
+ int *stepping_through_solib_affter_catch,
+ bpstat *stepping_through_solib_catchpoints,
+ int *current_line,
+ struct symtab **current_symtab);
/* Commands with a prefix of `thread'. */
extern struct cmd_list_element *thread_cmd_list;
-/* Support for external (remote) systems with threads (processes) */
-/* For example real time operating systems */
-
-#define OPAQUETHREADBYTES 8
-/* a 64 bit opaque identifier */
-typedef unsigned char threadref[OPAQUETHREADBYTES] ;
-/* WARNING: This threadref data structure comes from the remote O.S., libstub
- protocol encoding, and remote.c. it is not particularly changable */
-
-/* Right now, the internal structure is int. We want it to be bigger.
- Plan to fix this.
- */
-typedef int gdb_threadref ; /* internal GDB thread reference */
-
-/* gdb_ext_thread_info is an internal GDB data structure which is
- equivalint to the reply of the remote threadinfo packet */
-
-struct gdb_ext_thread_info
-{
- threadref threadid ; /* External form of thread reference */
- int active ; /* Has state interesting to GDB? , regs, stack */
- char display[256] ; /* Brief state display, name, blocked/syspended */
- char shortname[32] ; /* To be used to name threads */
- char more_display[256] ; /* Long info, statistics, queue depth, whatever */
-} ;
-
-/* The volume of remote transfers can be limited by submitting
- a mask containing bits specifying the desired information.
- Use a union of these values as the 'selection' parameter to
- get_thread_info. FIXME: Make these TAG names more thread specific.
- */
-#define TAG_THREADID 1
-#define TAG_EXISTS 2
-#define TAG_DISPLAY 4
-#define TAG_THREADNAME 8
-#define TAG_MOREDISPLAY 16
-
-/* Always initialize an instance of this structure using run time assignments */
-/* Because we are likely to add entrtries to it. */
-/* Alternatly, WE COULD ADD THESE TO THE TARGET VECTOR */
-
-struct target_thread_vector
-{
- int (*find_new_threads)PARAMS((void)) ;
- int (*get_thread_info) PARAMS((
- gdb_threadref * ref,
- int selection,
- struct gdb_ext_thread_info * info
- )) ;
- /* to_thread_alive - Already in the target vector */
- /* to_switch_thread - Done via select frame */
-} ;
-
-extern void bind_target_thread_vector PARAMS((struct target_thread_vector * vec)) ;
-
-extern struct target_thread_vector * unbind_target_thread_vector PARAMS ((void)) ;
-
-extern int target_get_thread_info PARAMS((
- gdb_threadref * ref,
- int selection,
- struct gdb_ext_thread_info * info)) ;
-
-
-#endif /* GDBTHREAD_H */
+#endif /* GDBTHREAD_H */
projects / thirdparty / binutils-gdb.git / blobdiff