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-rw-r--r--gdb/thread.c721
1 files changed, 0 insertions, 721 deletions
diff --git a/gdb/thread.c b/gdb/thread.c
deleted file mode 100644
index 6a7ab09..0000000
--- a/gdb/thread.c
+++ /dev/null
@@ -1,721 +0,0 @@
-/* Multi-process/thread control for GDB, the GNU debugger.
- Copyright 1986, 1987, 1988, 1993, 1998
-
- Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
- Free Software Foundation, Inc.
-
-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 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. */
-
-#include "defs.h"
-#include "symtab.h"
-#include "frame.h"
-#include "inferior.h"
-#include "environ.h"
-#include "value.h"
-#include "target.h"
-#include "gdbthread.h"
-#include "command.h"
-#include "gdbcmd.h"
-
-#include <ctype.h>
-#include <sys/types.h>
-#include <signal.h>
-
-/*#include "lynxos-core.h"*/
-
-struct thread_info
-{
- struct thread_info *next;
- int pid; /* Actual process id */
- int num; /* Convenient handle */
- CORE_ADDR prev_pc; /* State from wait_for_inferior */
- 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;
-
-};
-
-/* Prototypes for exported functions. */
-
-void _initialize_thread PARAMS ((void));
-
-/* Prototypes for local functions. */
-
-#if !defined(FIND_NEW_THREADS)
-#define FIND_NEW_THREADS target_find_new_threads
-#endif
-
-static struct thread_info *thread_list = NULL;
-static int highest_thread_num;
-
-static struct thread_info * find_thread_id PARAMS ((int num));
-
-static void thread_command PARAMS ((char * tidstr, int from_tty));
-static void thread_apply_all_command PARAMS ((char *, int));
-static int thread_alive PARAMS ((struct thread_info *));
-static void info_threads_command PARAMS ((char *, int));
-static void thread_apply_command PARAMS ((char *, int));
-static void restore_current_thread PARAMS ((int));
-static void switch_to_thread PARAMS ((int pid));
-static void prune_threads PARAMS ((void));
-
-/* If the host has threads, the host machine definition may set this
- macro. But, for remote thread debugging, it gets more complex and
- setting macros does not bind to the various target dependent
- methods well. So, we use the vector target_thread_functions */
-
-static struct target_thread_vector *target_thread_functions;
-
-int
-target_find_new_threads ()
-{
- int retval = 0;
- if (target_thread_functions &&
- target_thread_functions->find_new_threads)
- retval = (*(target_thread_functions->find_new_threads)) ();
- return retval; /* no support */
-}
-
-
-int
-target_get_thread_info PARAMS ((gdb_threadref * ref,
- int selection, /* FIXME: Selection */
- struct gdb_ext_thread_info * info));
-
-int
-target_get_thread_info (ref, selection, info)
-
- gdb_threadref *ref;
- int selection;
- /* FIXME: Selection */
- struct gdb_ext_thread_info *info;
-
-{
- int retval = 0;
- if (target_thread_functions
- && target_thread_functions->get_thread_info)
- retval = (*(target_thread_functions->get_thread_info)) (ref, selection, info);
- return retval;
-}
-
-
-/* It is possible that these bind and unbinf functions implement a
- stack the interface allows it, but its not implemented that way
- */
-
-
-void
-bind_target_thread_vector (vec)
- struct target_thread_vector *vec;
-{
- target_thread_functions = vec;
-}
-
-struct target_thread_vector *
-unbind_target_thread_vector ()
-{
- struct target_thread_vector *retval;
- retval = target_thread_functions;
- target_thread_functions = 0;
- return retval;
-} /* unbind_target_thread-vector */
-
-void
-init_thread_list ()
-{
- struct thread_info *tp, *tpnext;
-
- if (!thread_list)
- return;
-
- for (tp = thread_list; tp; tp = tpnext)
- {
- tpnext = tp->next;
- free (tp);
- }
-
- thread_list = NULL;
- highest_thread_num = 0;
-}
-
-void
-add_thread (pid)
- int pid;
-{
- struct thread_info *tp;
-
- tp = (struct thread_info *) xmalloc (sizeof (struct thread_info));
-
- tp->pid = pid;
- tp->num = ++highest_thread_num;
- tp->prev_pc = 0;
- tp->prev_func_start = 0;
- tp->prev_func_name = NULL;
- tp->step_range_start = 0;
- tp->step_range_end = 0;
- tp->step_frame_address =0;
- tp->step_resume_breakpoint = 0;
- tp->through_sigtramp_breakpoint = 0;
- tp->handling_longjmp = 0;
- tp->trap_expected = 0;
- tp->another_trap = 0;
- tp->stepping_through_solib_after_catch = 0;
- tp->stepping_through_solib_catchpoints = NULL;
- tp->stepping_through_sigtramp = 0;
- tp->next = thread_list;
- thread_list = tp;
-}
-
-void
-delete_thread (pid)
- int pid;
-{
- struct thread_info *tp, *tpprev;
-
- tpprev = NULL;
-
- for (tp = thread_list; tp; tpprev = tp, tp = tp->next)
- if (tp->pid == pid)
- break;
-
- if (!tp)
- return;
-
- if (tpprev)
- tpprev->next = tp->next;
- else
- thread_list = tp->next;
-
- free (tp);
-
- return;
-}
-
-static struct thread_info *
-find_thread_id (num)
- int num;
-{
- struct thread_info *tp;
-
- for (tp = thread_list; tp; tp = tp->next)
- if (tp->num == num)
- return tp;
-
- return NULL;
-}
-
-int
-valid_thread_id (num)
- int num;
-{
- struct thread_info *tp;
-
- for (tp = thread_list; tp; tp = tp->next)
- if (tp->num == num)
- return 1;
-
- return 0;
-}
-
-int
-pid_to_thread_id (pid)
- int pid;
-{
- struct thread_info *tp;
-
- for (tp = thread_list; tp; tp = tp->next)
- if (tp->pid == pid)
- return tp->num;
-
- return 0;
-}
-
-int
-thread_id_to_pid (num)
- int num;
-{
- struct thread_info *thread = find_thread_id (num);
- if (thread)
- return thread->pid;
- else
- return -1;
-}
-
-int
-in_thread_list (pid)
- int pid;
-{
- struct thread_info *tp;
-
- for (tp = thread_list; tp; tp = tp->next)
- if (tp->pid == pid)
- return 1;
-
- return 0; /* Never heard of 'im */
-}
-
-/* Load infrun state for the thread PID. */
-
-void load_infrun_state (pid, prev_pc, prev_func_start, prev_func_name,
- trap_expected, step_resume_breakpoint,
- through_sigtramp_breakpoint, step_range_start,
- step_range_end, step_frame_address,
- handling_longjmp, another_trap,
- stepping_through_solib_after_catch,
- stepping_through_solib_catchpoints,
- stepping_through_sigtramp)
- 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;
-{
- struct thread_info *tp;
-
- /* If we can't find the thread, then we're debugging a single threaded
- process. No need to do anything in that case. */
- tp = find_thread_id (pid_to_thread_id (pid));
- if (tp == NULL)
- return;
-
- *prev_pc = tp->prev_pc;
- *prev_func_start = tp->prev_func_start;
- *prev_func_name = tp->prev_func_name;
- *step_resume_breakpoint = tp->step_resume_breakpoint;
- *step_range_start = tp->step_range_start;
- *step_range_end = tp->step_range_end;
- *step_frame_address = tp->step_frame_address;
- *through_sigtramp_breakpoint = tp->through_sigtramp_breakpoint;
- *handling_longjmp = tp->handling_longjmp;
- *trap_expected = tp->trap_expected;
- *another_trap = tp->another_trap;
- *stepping_through_solib_after_catch = tp->stepping_through_solib_after_catch;
- *stepping_through_solib_catchpoints = tp->stepping_through_solib_catchpoints;
- *stepping_through_sigtramp = tp->stepping_through_sigtramp;
-}
-
-/* Save infrun state for the thread PID. */
-
-void save_infrun_state (pid, prev_pc, prev_func_start, prev_func_name,
- trap_expected, step_resume_breakpoint,
- through_sigtramp_breakpoint, step_range_start,
- step_range_end, step_frame_address,
- handling_longjmp, another_trap,
- stepping_through_solib_after_catch,
- stepping_through_solib_catchpoints,
- stepping_through_sigtramp)
- 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;
-{
- struct thread_info *tp;
-
- /* If we can't find the thread, then we're debugging a single-threaded
- process. Nothing to do in that case. */
- tp = find_thread_id (pid_to_thread_id (pid));
- if (tp == NULL)
- return;
-
- tp->prev_pc = prev_pc;
- tp->prev_func_start = prev_func_start;
- tp->prev_func_name = prev_func_name;
- tp->step_resume_breakpoint = step_resume_breakpoint;
- tp->step_range_start = step_range_start;
- tp->step_range_end = step_range_end;
- tp->step_frame_address = step_frame_address;
- tp->through_sigtramp_breakpoint = through_sigtramp_breakpoint;
- tp->handling_longjmp = handling_longjmp;
- tp->trap_expected = trap_expected;
- tp->another_trap = another_trap;
- tp->stepping_through_solib_after_catch = stepping_through_solib_after_catch;
- tp->stepping_through_solib_catchpoints = stepping_through_solib_catchpoints;
- tp->stepping_through_sigtramp = stepping_through_sigtramp;
-}
-
-/* Return true if TP is an active thread. */
-static int
-thread_alive (tp)
- struct thread_info *tp;
-{
- if (tp->pid == -1)
- return 0;
- if (! target_thread_alive (tp->pid))
- {
- tp->pid = -1; /* Mark it as dead */
- return 0;
- }
- return 1;
-}
-
-static void
-prune_threads ()
-{
- struct thread_info *tp, *tpprev, *next;
-
- tpprev = 0;
- for (tp = thread_list; tp; tp = next)
- {
- next = tp->next;
- if (!thread_alive (tp))
- {
- if (tpprev)
- tpprev->next = next;
- else
- thread_list = next;
- free (tp);
- }
- else
- tpprev = tp;
- }
-}
-
-/* Print information about currently known threads
- *
- * Note: this has the drawback that it _really_ switches
- * threads, which frees the frame cache. A no-side
- * effects info-threads command would be nicer.
- */
-
-static void
-info_threads_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- struct thread_info *tp;
- int current_pid;
- struct frame_info *cur_frame;
- int saved_frame_level = selected_frame_level;
- int counter;
-
- /* Avoid coredumps which would happen if we tried to access a NULL
- selected_frame. */
- if (!target_has_stack) error ("No stack.");
-
- prune_threads ();
-#if defined(FIND_NEW_THREADS)
- FIND_NEW_THREADS ();
-#endif
- current_pid = inferior_pid;
- for (tp = thread_list; tp; tp = tp->next)
- {
- if (tp->pid == current_pid)
- printf_filtered ("* ");
- else
- printf_filtered (" ");
-
-#ifdef HPUXHPPA
- printf_filtered ("%d %s ", tp->num, target_tid_to_str (tp->pid));
-#else
- printf_filtered ("%d %s ", tp->num, target_pid_to_str (tp->pid));
-#endif
- switch_to_thread (tp->pid);
- if (selected_frame)
- print_only_stack_frame (selected_frame, -1, 0);
- else
- printf_filtered ("[No stack.]\n");
- }
-
- switch_to_thread (current_pid);
-
- /* Code below copied from "up_silently_base" in "stack.c".
- * It restores the frame set by the user before the "info threads"
- * command. We have finished the info-threads display by switching
- * back to the current thread. That switch has put us at the top
- * of the stack (leaf frame).
- */
- counter = saved_frame_level;
- cur_frame = find_relative_frame(selected_frame, &counter);
- if (counter != 0)
- {
- /* Ooops, can't restore, tell user where we are. */
- warning ("Couldn't restore frame in current thread, at frame 0");
- print_stack_frame (selected_frame, -1, 0);
- }
- else
- {
- select_frame(cur_frame, saved_frame_level);
- }
-
- /* re-show current frame. */
- show_stack_frame(cur_frame);
-}
-
-/* Switch from one thread to another. */
-
-static void
-switch_to_thread (pid)
- int pid;
-{
- if (pid == inferior_pid)
- return;
-
- inferior_pid = pid;
- flush_cached_frames ();
- registers_changed ();
- stop_pc = read_pc();
- select_frame (get_current_frame (), 0);
-}
-
-static void
-restore_current_thread (pid)
- int pid;
-{
- if (pid != inferior_pid)
- {
- switch_to_thread (pid);
- print_stack_frame( get_current_frame(), 0, -1);
- }
-}
-
-/* Apply a GDB command to a list of threads. List syntax is a whitespace
- seperated list of numbers, or ranges, or the keyword `all'. Ranges consist
- of two numbers seperated by a hyphen. Examples:
-
- thread apply 1 2 7 4 backtrace Apply backtrace cmd to threads 1,2,7,4
- thread apply 2-7 9 p foo(1) Apply p foo(1) cmd to threads 2->7 & 9
- thread apply all p x/i $pc Apply x/i $pc cmd to all threads
-*/
-
-static void
-thread_apply_all_command (cmd, from_tty)
- char *cmd;
- int from_tty;
-{
- struct thread_info *tp;
- struct cleanup *old_chain;
-
- if (cmd == NULL || *cmd == '\000')
- error ("Please specify a command following the thread ID list");
-
- old_chain = make_cleanup ((make_cleanup_func) restore_current_thread,
- (void *) inferior_pid);
-
- for (tp = thread_list; tp; tp = tp->next)
- if (thread_alive (tp))
- {
- switch_to_thread (tp->pid);
-#ifdef HPUXHPPA
- printf_filtered ("\nThread %d (%s):\n",
- tp->num,
- target_tid_to_str (inferior_pid));
-#else
- printf_filtered ("\nThread %d (%s):\n", tp->num,
- target_pid_to_str (inferior_pid));
-#endif
- execute_command (cmd, from_tty);
- }
-}
-
-static void
-thread_apply_command (tidlist, from_tty)
- char *tidlist;
- int from_tty;
-{
- char *cmd;
- char *p;
- struct cleanup *old_chain;
-
- if (tidlist == NULL || *tidlist == '\000')
- error ("Please specify a thread ID list");
-
- for (cmd = tidlist; *cmd != '\000' && !isalpha(*cmd); cmd++);
-
- if (*cmd == '\000')
- error ("Please specify a command following the thread ID list");
-
- old_chain = make_cleanup ((make_cleanup_func) restore_current_thread,
- (void *) inferior_pid);
-
- while (tidlist < cmd)
- {
- struct thread_info *tp;
- int start, end;
-
- start = strtol (tidlist, &p, 10);
- if (p == tidlist)
- error ("Error parsing %s", tidlist);
- tidlist = p;
-
- while (*tidlist == ' ' || *tidlist == '\t')
- tidlist++;
-
- if (*tidlist == '-') /* Got a range of IDs? */
- {
- tidlist++; /* Skip the - */
- end = strtol (tidlist, &p, 10);
- if (p == tidlist)
- error ("Error parsing %s", tidlist);
- tidlist = p;
-
- while (*tidlist == ' ' || *tidlist == '\t')
- tidlist++;
- }
- else
- end = start;
-
- for (; start <= end; start++)
- {
- tp = find_thread_id (start);
-
- if (!tp)
- warning ("Unknown thread %d.", start);
- else if (!thread_alive (tp))
- warning ("Thread %d has terminated.", start);
- else
- {
- switch_to_thread (tp->pid);
-#ifdef HPUXHPPA
- printf_filtered ("\nThread %d (%s):\n", tp->num,
- target_tid_to_str (inferior_pid));
-#else
- printf_filtered ("\nThread %d (%s):\n", tp->num,
- target_pid_to_str (inferior_pid));
-#endif
- execute_command (cmd, from_tty);
- }
- }
- }
-}
-
-/* Switch to the specified thread. Will dispatch off to thread_apply_command
- if prefix of arg is `apply'. */
-
-static void
-thread_command (tidstr, from_tty)
- char *tidstr;
- int from_tty;
-{
- int num;
- struct thread_info *tp;
-
- if (!tidstr)
- {
- /* Don't generate an error, just say which thread is current. */
- if (target_has_stack)
- printf_filtered ("[Current thread is %d (%s)]\n",
- pid_to_thread_id(inferior_pid),
-#if defined(HPUXHPPA)
- target_tid_to_str(inferior_pid)
-#else
- target_pid_to_str(inferior_pid)
-#endif
- );
- else
- error ("No stack.");
- return;
- }
- num = atoi (tidstr);
-
- tp = find_thread_id (num);
-
- if (!tp)
- error ("Thread ID %d not known. Use the \"info threads\" command to\n\
-see the IDs of currently known threads.", num);
-
- if (!thread_alive (tp))
- error ("Thread ID %d has terminated.\n", num);
-
- switch_to_thread (tp->pid);
-
- if (context_hook)
- context_hook (num);
-
- printf_filtered ("[Switching to thread %d (%s)]\n",
- pid_to_thread_id (inferior_pid),
-#if defined(HPUXHPPA)
- target_tid_to_str (inferior_pid)
-#else
- target_pid_to_str (inferior_pid)
-#endif
- );
- print_stack_frame (selected_frame, selected_frame_level, 1);
-}
-
-/* Commands with a prefix of `thread'. */
-struct cmd_list_element *thread_cmd_list = NULL;
-
-void
-_initialize_thread ()
-{
- static struct cmd_list_element *thread_apply_list = NULL;
- extern struct cmd_list_element *cmdlist;
-
- add_info ("threads", info_threads_command,
- "IDs of currently known threads.");
-
- add_prefix_cmd ("thread", class_run, thread_command,
- "Use this command to switch between threads.\n\
-The new thread ID must be currently known.", &thread_cmd_list, "thread ", 1,
- &cmdlist);
-
- add_prefix_cmd ("apply", class_run, thread_apply_command,
- "Apply a command to a list of threads.",
- &thread_apply_list, "apply ", 1, &thread_cmd_list);
-
- add_cmd ("all", class_run, thread_apply_all_command,
- "Apply a command to all threads.",
- &thread_apply_list);
-
- if (!xdb_commands)
- add_com_alias ("t", "thread", class_run, 1);
-}
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