Initial creation of sourceware repository

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);
-}