Sync config.sub,config.guess with upstream.
[deliverable/binutils-gdb.git] / gdb / breakpoint.c
index 0b29a8ac55199690bc721fcf5587f269b357b261..3908dabffecdbc375dfdfbeeb298a89e943a838b 100644 (file)
@@ -80,6 +80,7 @@
 
 #include "mi/mi-common.h"
 #include "extension.h"
+#include <algorithm>
 
 /* Enums for exception-handling support.  */
 enum exception_event_kind
@@ -194,15 +195,8 @@ static void commands_command (char *, int);
 
 static void condition_command (char *, int);
 
-typedef enum
-  {
-    mark_inserted,
-    mark_uninserted
-  }
-insertion_state_t;
-
-static int remove_breakpoint (struct bp_location *, insertion_state_t);
-static int remove_breakpoint_1 (struct bp_location *, insertion_state_t);
+static int remove_breakpoint (struct bp_location *);
+static int remove_breakpoint_1 (struct bp_location *, enum remove_bp_reason);
 
 static enum print_stop_action print_bp_stop_message (bpstat bs);
 
@@ -2609,6 +2603,28 @@ build_target_command_list (struct bp_location *bl)
     bl->target_info.persist = 1;
 }
 
+/* Return the kind of breakpoint on address *ADDR.  Get the kind
+   of breakpoint according to ADDR except single-step breakpoint.
+   Get the kind of single-step breakpoint according to the current
+   registers state.  */
+
+static int
+breakpoint_kind (struct bp_location *bl, CORE_ADDR *addr)
+{
+  if (bl->owner->type == bp_single_step)
+    {
+      struct thread_info *thr = find_thread_global_id (bl->owner->thread);
+      struct regcache *regcache;
+
+      regcache = get_thread_regcache (thr->ptid);
+
+      return gdbarch_breakpoint_kind_from_current_state (bl->gdbarch,
+                                                        regcache, addr);
+    }
+  else
+    return gdbarch_breakpoint_kind_from_pc (bl->gdbarch, addr);
+}
+
 /* Insert a low-level "breakpoint" of some type.  BL is the breakpoint
    location.  Any error messages are printed to TMP_ERROR_STREAM; and
    DISABLED_BREAKS, and HW_BREAKPOINT_ERROR are used to report problems.
@@ -2768,6 +2784,9 @@ insert_bp_location (struct bp_location *bl,
                    {
                      int val;
 
+                     bl->overlay_target_info.kind
+                       = breakpoint_kind (bl, &addr);
+                     bl->overlay_target_info.placed_address = addr;
                      val = target_insert_breakpoint (bl->gdbarch,
                                                      &bl->overlay_target_info);
                      if (val)
@@ -3189,7 +3208,7 @@ insert_breakpoint_locations (void)
        {
          for (loc = bpt->loc; loc; loc = loc->next)
            if (loc->inserted)
-             remove_breakpoint (loc, mark_uninserted);
+             remove_breakpoint (loc);
 
          hw_breakpoint_error = 1;
          fprintf_unfiltered (tmp_error_stream,
@@ -3229,7 +3248,7 @@ remove_breakpoints (void)
   ALL_BP_LOCATIONS (bl, blp_tmp)
   {
     if (bl->inserted && !is_tracepoint (bl->owner))
-      val |= remove_breakpoint (bl, mark_uninserted);
+      val |= remove_breakpoint (bl);
   }
   return val;
 }
@@ -3274,7 +3293,7 @@ remove_breakpoints_pid (int pid)
 
     if (bl->inserted && !bl->target_info.persist)
       {
-       val = remove_breakpoint (bl, mark_uninserted);
+       val = remove_breakpoint (bl);
        if (val != 0)
          return val;
       }
@@ -3929,7 +3948,7 @@ detach_breakpoints (ptid_t ptid)
       continue;
 
     if (bl->inserted)
-      val |= remove_breakpoint_1 (bl, mark_inserted);
+      val |= remove_breakpoint_1 (bl, DETACH_BREAKPOINT);
   }
 
   do_cleanups (old_chain);
@@ -3943,7 +3962,7 @@ detach_breakpoints (ptid_t ptid)
    *not* look at bl->pspace->aspace here.  */
 
 static int
-remove_breakpoint_1 (struct bp_location *bl, insertion_state_t is)
+remove_breakpoint_1 (struct bp_location *bl, enum remove_bp_reason reason)
 {
   int val;
 
@@ -3991,7 +4010,7 @@ remove_breakpoint_1 (struct bp_location *bl, insertion_state_t is)
              && !memory_validate_breakpoint (bl->gdbarch, &bl->target_info))
            val = 0;
          else
-           val = bl->owner->ops->remove_location (bl);
+           val = bl->owner->ops->remove_location (bl, reason);
        }
       else
        {
@@ -4009,7 +4028,8 @@ remove_breakpoint_1 (struct bp_location *bl, insertion_state_t is)
                                               &bl->overlay_target_info);
                else
                  target_remove_breakpoint (bl->gdbarch,
-                                           &bl->overlay_target_info);
+                                           &bl->overlay_target_info,
+                                           reason);
              }
          /* Did we set a breakpoint at the VMA? 
             If so, we will have marked the breakpoint 'inserted'.  */
@@ -4025,7 +4045,7 @@ remove_breakpoint_1 (struct bp_location *bl, insertion_state_t is)
                 wrong code with the saved shadow contents.  */
              if (bl->loc_type == bp_loc_hardware_breakpoint
                  || section_is_mapped (bl->section))
-               val = bl->owner->ops->remove_location (bl);
+               val = bl->owner->ops->remove_location (bl, reason);
              else
                val = 0;
            }
@@ -4055,18 +4075,18 @@ remove_breakpoint_1 (struct bp_location *bl, insertion_state_t is)
 
       if (val)
        return val;
-      bl->inserted = (is == mark_inserted);
+      bl->inserted = (reason == DETACH_BREAKPOINT);
     }
   else if (bl->loc_type == bp_loc_hardware_watchpoint)
     {
       gdb_assert (bl->owner->ops != NULL
                  && bl->owner->ops->remove_location != NULL);
 
-      bl->inserted = (is == mark_inserted);
-      bl->owner->ops->remove_location (bl);
+      bl->inserted = (reason == DETACH_BREAKPOINT);
+      bl->owner->ops->remove_location (bl, reason);
 
       /* Failure to remove any of the hardware watchpoints comes here.  */
-      if ((is == mark_uninserted) && (bl->inserted))
+      if (reason == REMOVE_BREAKPOINT && bl->inserted)
        warning (_("Could not remove hardware watchpoint %d."),
                 bl->owner->number);
     }
@@ -4077,18 +4097,18 @@ remove_breakpoint_1 (struct bp_location *bl, insertion_state_t is)
       gdb_assert (bl->owner->ops != NULL
                  && bl->owner->ops->remove_location != NULL);
 
-      val = bl->owner->ops->remove_location (bl);
+      val = bl->owner->ops->remove_location (bl, reason);
       if (val)
        return val;
 
-      bl->inserted = (is == mark_inserted);
+      bl->inserted = (reason == DETACH_BREAKPOINT);
     }
 
   return 0;
 }
 
 static int
-remove_breakpoint (struct bp_location *bl, insertion_state_t is)
+remove_breakpoint (struct bp_location *bl)
 {
   int ret;
   struct cleanup *old_chain;
@@ -4104,7 +4124,7 @@ remove_breakpoint (struct bp_location *bl, insertion_state_t is)
 
   switch_to_program_space_and_thread (bl->pspace);
 
-  ret = remove_breakpoint_1 (bl, is);
+  ret = remove_breakpoint_1 (bl, REMOVE_BREAKPOINT);
 
   do_cleanups (old_chain);
   return ret;
@@ -4441,8 +4461,8 @@ hardware_watchpoint_inserted_in_range (struct address_space *aspace,
            CORE_ADDR l, h;
 
            /* Check for intersection.  */
-           l = max (loc->address, addr);
-           h = min (loc->address + loc->length, addr + len);
+           l = std::max<CORE_ADDR> (loc->address, addr);
+           h = std::min<CORE_ADDR> (loc->address + loc->length, addr + len);
            if (l < h)
              return 1;
          }
@@ -5243,8 +5263,6 @@ watchpoint_check (void *p)
     }
   else
     {
-      struct switch_thru_all_uis state;
-
       /* This seems like the only logical thing to do because
          if we temporarily ignored the watchpoint, then when
          we reenter the block in which it is valid it contains
@@ -5259,7 +5277,7 @@ watchpoint_check (void *p)
         already.  So we have no choice but print the information
         here.  */
 
-      SWITCH_THRU_ALL_UIS (state)
+      SWITCH_THRU_ALL_UIS ()
         {
          struct ui_out *uiout = current_uiout;
 
@@ -5440,9 +5458,7 @@ bpstat_check_watchpoint (bpstat bs)
            case 0:
              /* Error from catch_errors.  */
              {
-               struct switch_thru_all_uis state;
-
-               SWITCH_THRU_ALL_UIS (state)
+               SWITCH_THRU_ALL_UIS ()
                  {
                    printf_filtered (_("Watchpoint %d deleted.\n"),
                                     b->base.number);
@@ -6002,7 +6018,7 @@ bpstat_what (bpstat bs_head)
                          _("bpstat_what: unhandled bptype %d"), (int) bptype);
        }
 
-      retval.main_action = max (retval.main_action, this_action);
+      retval.main_action = std::max (retval.main_action, this_action);
     }
 
   return retval;
@@ -6815,6 +6831,14 @@ user_breakpoint_p (struct breakpoint *b)
   return b->number > 0;
 }
 
+/* See breakpoint.h.  */
+
+int
+pending_breakpoint_p (struct breakpoint *b)
+{
+  return b->loc == NULL;
+}
+
 /* Print information on user settable breakpoint (watchpoint, etc)
    number BNUM.  If BNUM is -1 print all user-settable breakpoints.
    If ALLFLAG is non-zero, include non-user-settable breakpoints.  If
@@ -8107,7 +8131,7 @@ insert_catch_fork (struct bp_location *bl)
    catchpoints.  */
 
 static int
-remove_catch_fork (struct bp_location *bl)
+remove_catch_fork (struct bp_location *bl, enum remove_bp_reason reason)
 {
   return target_remove_fork_catchpoint (ptid_get_pid (inferior_ptid));
 }
@@ -8225,7 +8249,7 @@ insert_catch_vfork (struct bp_location *bl)
    catchpoints.  */
 
 static int
-remove_catch_vfork (struct bp_location *bl)
+remove_catch_vfork (struct bp_location *bl, enum remove_bp_reason reason)
 {
   return target_remove_vfork_catchpoint (ptid_get_pid (inferior_ptid));
 }
@@ -8368,7 +8392,7 @@ insert_catch_solib (struct bp_location *ignore)
 }
 
 static int
-remove_catch_solib (struct bp_location *ignore)
+remove_catch_solib (struct bp_location *ignore, enum remove_bp_reason reason)
 {
   return 0;
 }
@@ -8698,7 +8722,7 @@ insert_catch_exec (struct bp_location *bl)
 }
 
 static int
-remove_catch_exec (struct bp_location *bl)
+remove_catch_exec (struct bp_location *bl, enum remove_bp_reason reason)
 {
   return target_remove_exec_catchpoint (ptid_get_pid (inferior_ptid));
 }
@@ -10707,7 +10731,7 @@ insert_watchpoint (struct bp_location *bl)
 /* Implement the "remove" breakpoint_ops method for hardware watchpoints.  */
 
 static int
-remove_watchpoint (struct bp_location *bl)
+remove_watchpoint (struct bp_location *bl, enum remove_bp_reason reason)
 {
   struct watchpoint *w = (struct watchpoint *) bl->owner;
   int length = w->exact ? 1 : bl->length;
@@ -10962,7 +10986,7 @@ insert_masked_watchpoint (struct bp_location *bl)
    masked hardware watchpoints.  */
 
 static int
-remove_masked_watchpoint (struct bp_location *bl)
+remove_masked_watchpoint (struct bp_location *bl, enum remove_bp_reason reason)
 {
   struct watchpoint *w = (struct watchpoint *) bl->owner;
 
@@ -12601,7 +12625,7 @@ update_global_location_list (enum ugll_insert_mode insert_mode)
 
          if (!keep_in_target)
            {
-             if (remove_breakpoint (old_loc, mark_uninserted))
+             if (remove_breakpoint (old_loc))
                {
                  /* This is just about all we can do.  We could keep
                     this location on the global list, and try to
@@ -12958,7 +12982,8 @@ base_breakpoint_insert_location (struct bp_location *bl)
 }
 
 static int
-base_breakpoint_remove_location (struct bp_location *bl)
+base_breakpoint_remove_location (struct bp_location *bl,
+                                enum remove_bp_reason reason)
 {
   internal_error_pure_virtual_called ();
 }
@@ -13113,6 +13138,11 @@ bkpt_re_set (struct breakpoint *b)
 static int
 bkpt_insert_location (struct bp_location *bl)
 {
+  CORE_ADDR addr = bl->target_info.reqstd_address;
+
+  bl->target_info.kind = breakpoint_kind (bl, &addr);
+  bl->target_info.placed_address = addr;
+
   if (bl->loc_type == bp_loc_hardware_breakpoint)
     return target_insert_hw_breakpoint (bl->gdbarch, &bl->target_info);
   else
@@ -13120,12 +13150,12 @@ bkpt_insert_location (struct bp_location *bl)
 }
 
 static int
-bkpt_remove_location (struct bp_location *bl)
+bkpt_remove_location (struct bp_location *bl, enum remove_bp_reason reason)
 {
   if (bl->loc_type == bp_loc_hardware_breakpoint)
     return target_remove_hw_breakpoint (bl->gdbarch, &bl->target_info);
   else
-    return target_remove_breakpoint (bl->gdbarch, &bl->target_info);
+    return target_remove_breakpoint (bl->gdbarch, &bl->target_info, reason);
 }
 
 static int
@@ -13468,7 +13498,8 @@ bkpt_probe_insert_location (struct bp_location *bl)
 }
 
 static int
-bkpt_probe_remove_location (struct bp_location *bl)
+bkpt_probe_remove_location (struct bp_location *bl,
+                           enum remove_bp_reason reason)
 {
   /* Let's clear the semaphore before removing the location.  */
   if (bl->probe.probe->pops->clear_semaphore != NULL)
@@ -13476,7 +13507,7 @@ bkpt_probe_remove_location (struct bp_location *bl)
                                            bl->probe.objfile,
                                            bl->gdbarch);
 
-  return bkpt_remove_location (bl);
+  return bkpt_remove_location (bl, reason);
 }
 
 static void
@@ -14770,21 +14801,18 @@ map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *,
 {
   int num;
   struct breakpoint *b, *tmp;
-  int match;
-  struct get_number_or_range_state state;
 
   if (args == 0 || *args == '\0')
     error_no_arg (_("one or more breakpoint numbers"));
 
-  init_number_or_range (&state, args);
+  number_or_range_parser parser (args);
 
-  while (!state.finished)
+  while (!parser.finished ())
     {
-      const char *p = state.string;
-
-      match = 0;
+      const char *p = parser.cur_tok ();
+      bool match = false;
 
-      num = get_number_or_range (&state);
+      num = parser.get_number ();
       if (num == 0)
        {
          warning (_("bad breakpoint number at or near '%s'"), p);
@@ -14794,11 +14822,11 @@ map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *,
          ALL_BREAKPOINTS_SAFE (b, tmp)
            if (b->number == num)
              {
-               match = 1;
+               match = true;
                function (b, data);
                break;
              }
-         if (match == 0)
+         if (!match)
            printf_unfiltered (_("No breakpoint number %d.\n"), num);
        }
     }
@@ -15579,12 +15607,10 @@ trace_pass_command (char *args, int from_tty)
     }
   else
     {
-      struct get_number_or_range_state state;
-
-      init_number_or_range (&state, args);
-      while (!state.finished)
+      number_or_range_parser parser (args);
+      while (!parser.finished ())
        {
-         t1 = get_tracepoint_by_number (&args, &state);
+         t1 = get_tracepoint_by_number (&args, &parser);
          if (t1)
            trace_pass_set_count (t1, count, from_tty);
        }
@@ -15630,16 +15656,16 @@ get_tracepoint_by_number_on_target (int num)
 
 struct tracepoint *
 get_tracepoint_by_number (char **arg,
-                         struct get_number_or_range_state *state)
+                         number_or_range_parser *parser)
 {
   struct breakpoint *t;
   int tpnum;
   char *instring = arg == NULL ? NULL : *arg;
 
-  if (state)
+  if (parser != NULL)
     {
-      gdb_assert (!state->finished);
-      tpnum = get_number_or_range (state);
+      gdb_assert (!parser->finished ());
+      tpnum = parser->get_number ();
     }
   else if (arg == NULL || *arg == NULL || ! **arg)
     tpnum = tracepoint_count;
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