gdb/x86-linux-nat.h

   1 /* Native-dependent code for GNU/Linux x86 (i386 and x86-64).
   2
   3    Copyright (C) 1999-2022 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 #ifndef X86_LINUX_NAT_H
  21 #define X86_LINUX_NAT_H 1
  22
  23 #include "gdb_proc_service.h"  /* For ps_err_e.  */
  24 #include "linux-nat.h"
  25 #include "x86-nat.h"
  26 #include "nat/x86-linux.h"
  27
  28 struct x86_linux_nat_target : public x86_nat_target<linux_nat_target>
  29 {
  30   virtual ~x86_linux_nat_target () override = 0;
  31
  32   /* Add the description reader.  */
  33   const struct target_desc *read_description () override;
  34
  35   struct btrace_target_info *enable_btrace (thread_info *tp,
  36                                             const struct btrace_config *conf) override;
  37   void disable_btrace (struct btrace_target_info *tinfo) override;
  38   void teardown_btrace (struct btrace_target_info *tinfo) override;
  39   enum btrace_error read_btrace (struct btrace_data *data,
  40                                  struct btrace_target_info *btinfo,
  41                                  enum btrace_read_type type) override;
  42   const struct btrace_config *btrace_conf (const struct btrace_target_info *) override;
  43
  44   /* These two are rewired to low_ versions.  linux-nat.c queries
  45      stopped-by-watchpoint info as soon as an lwp stops (via the low_
  46      methods) and caches the result, to be returned via the normal
  47      non-low methods.  */
  48   bool stopped_by_watchpoint () override
  49   { return linux_nat_target::stopped_by_watchpoint (); }
  50
  51   bool stopped_data_address (CORE_ADDR *addr_p) override
  52   { return linux_nat_target::stopped_data_address (addr_p); }
  53
  54   bool low_stopped_by_watchpoint () override
  55   { return x86_nat_target::stopped_by_watchpoint (); }
  56
  57   bool low_stopped_data_address (CORE_ADDR *addr_p) override
  58   { return x86_nat_target::stopped_data_address (addr_p); }
  59
  60   void low_new_fork (struct lwp_info *parent, pid_t child_pid) override;
  61
  62   void low_forget_process (pid_t pid) override
  63   { x86_forget_process (pid); }
  64
  65   void low_prepare_to_resume (struct lwp_info *lwp) override
  66   { x86_linux_prepare_to_resume (lwp); }
  67
  68   void low_new_thread (struct lwp_info *lwp) override
  69   { x86_linux_new_thread (lwp); }
  70
  71   void low_delete_thread (struct arch_lwp_info *lwp) override
  72   { x86_linux_delete_thread (lwp); }
  73
  74 protected:
  75   /* Override the GNU/Linux inferior startup hook.  */
  76   void post_startup_inferior (ptid_t) override;
  77 };
  78
  79 \f
  80
  81 /* Helper for ps_get_thread_area.  Sets BASE_ADDR to a pointer to
  82    the thread local storage (or its descriptor) and returns PS_OK
  83    on success.  Returns PS_ERR on failure.  */
  84
  85 extern ps_err_e x86_linux_get_thread_area (pid_t pid, void *addr,
  86                                            unsigned int *base_addr);
  87
  88 #endif