gdb/process-stratum-target.c

   1 /* Abstract base class inherited by all process_stratum targets
   2
   3    Copyright (C) 2018-2021 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "process-stratum-target.h"
  22 #include "inferior.h"
  23
  24 process_stratum_target::~process_stratum_target ()
  25 {
  26 }
  27
  28 struct address_space *
  29 process_stratum_target::thread_address_space (ptid_t ptid)
  30 {
  31   /* Fall-back to the "main" address space of the inferior.  */
  32   inferior *inf = find_inferior_ptid (this, ptid);
  33
  34   if (inf == NULL || inf->aspace == NULL)
  35     internal_error (__FILE__, __LINE__,
  36                     _("Can't determine the current "
  37                       "address space of thread %s\n"),
  38                     target_pid_to_str (ptid).c_str ());
  39
  40   return inf->aspace;
  41 }
  42
  43 struct gdbarch *
  44 process_stratum_target::thread_architecture (ptid_t ptid)
  45 {
  46   inferior *inf = find_inferior_ptid (this, ptid);
  47   gdb_assert (inf != NULL);
  48   return inf->gdbarch;
  49 }
  50
  51 bool
  52 process_stratum_target::has_all_memory ()
  53 {
  54   /* If no inferior selected, then we can't read memory here.  */
  55   return inferior_ptid != null_ptid;
  56 }
  57
  58 bool
  59 process_stratum_target::has_memory ()
  60 {
  61   /* If no inferior selected, then we can't read memory here.  */
  62   return inferior_ptid != null_ptid;
  63 }
  64
  65 bool
  66 process_stratum_target::has_stack ()
  67 {
  68   /* If no inferior selected, there's no stack.  */
  69   return inferior_ptid != null_ptid;
  70 }
  71
  72 bool
  73 process_stratum_target::has_registers ()
  74 {
  75   /* Can't read registers from no inferior.  */
  76   return inferior_ptid != null_ptid;
  77 }
  78
  79 bool
  80 process_stratum_target::has_execution (inferior *inf)
  81 {
  82   /* If there's a process running already, we can't make it run
  83      through hoops.  */
  84   return inf->pid != 0;
  85 }
  86
  87 /* See process-stratum-target.h.  */
  88
  89 std::set<process_stratum_target *>
  90 all_non_exited_process_targets ()
  91 {
  92   /* Inferiors may share targets.  To eliminate duplicates, use a set.  */
  93   std::set<process_stratum_target *> targets;
  94   for (inferior *inf : all_non_exited_inferiors ())
  95     targets.insert (inf->process_target ());
  96
  97   return targets;
  98 }
  99
 100 /* See process-stratum-target.h.  */
 101
 102 void
 103 switch_to_target_no_thread (process_stratum_target *target)
 104 {
 105   for (inferior *inf : all_inferiors (target))
 106     {
 107       switch_to_inferior_no_thread (inf);
 108       break;
 109     }
 110 }