/* Multi-process/thread control defs for GDB, the GNU debugger.
- Copyright 1987, 88, 89, 90, 91, 92, 1993, 1998
+ Copyright 1987, 88, 89, 90, 91, 92, 1993, 1998, 1999, 2000
Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
Free Software Foundation, Inc.
/* 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));
-
-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;
+ int pid; /* "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;
+ CORE_ADDR prev_func_start;
+ char *prev_func_name;
+ struct breakpoint *step_resume_breakpoint;
+ struct breakpoint *through_sigtramp_breakpoint;
+ CORE_ADDR step_range_start;
+ CORE_ADDR step_range_end;
+ CORE_ADDR step_frame_address;
+ 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;
+
+ /* This is set to TRUE when this thread is in a signal handler
+ trampoline and we're single-stepping through it. */
+ int stepping_through_sigtramp;
+
+ /* 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 (int pid);
+
+/* Delete an existing thread list entry. */
+extern void delete_thread (int);
+
+/* 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 int 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 (int pid);
+
+/* Boolean test for an already-known pid (which may be overloaded with
+ extra thread information). */
+extern int in_thread_list (int pid);
+
+/* 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 (int pid);
+
+/* 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 (int pid,
+ CORE_ADDR prev_pc,
+ CORE_ADDR prev_func_start,
+ char *prev_func_name,
+ int trap_expected,
+ struct breakpoint *step_resume_breakpoint,
+ struct breakpoint *through_sigtramp_breakpoint,
+ CORE_ADDR step_range_start,
+ CORE_ADDR step_range_end,
+ CORE_ADDR step_frame_address,
+ int handling_longjmp,
+ int another_trap,
+ int stepping_through_solib_after_catch,
+ bpstat stepping_through_solib_catchpoints,
+ int stepping_through_sigtramp);
+
+/* infrun context switch: load the debugger state previously saved
+ for the given thread. */
+extern void load_infrun_state (int pid,
+ CORE_ADDR *prev_pc,
+ CORE_ADDR *prev_func_start,
+ char **prev_func_name,
+ int *trap_expected,
+ struct breakpoint **step_resume_breakpoint,
+ struct breakpoint **through_sigtramp_breakpoint,
+ CORE_ADDR *step_range_start,
+ CORE_ADDR *step_range_end,
+ CORE_ADDR *step_frame_address,
+ int *handling_longjmp,
+ int *another_trap,
+ int *stepping_through_solib_affter_catch,
+ bpstat *stepping_through_solib_catchpoints,
+ int *stepping_through_sigtramp);
/* Commands with a prefix of `thread'. */
extern struct cmd_list_element *thread_cmd_list;
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