gdb/x86-linux-nat.h

   1 /* Native-dependent code for GNU/Linux x86 (i386 and x86-64).
   2
   3    Copyright (C) 1999-2018 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
  27 struct x86_linux_nat_target : public x86_nat_target<linux_nat_target>
  28 {
  29   virtual ~x86_linux_nat_target () override = 0;
  30
  31   /* Override the GNU/Linux inferior startup hook.  */
  32   void post_startup_inferior (ptid_t) override;
  33
  34   /* Add the description reader.  */
  35   const struct target_desc *read_description () override;
  36
  37   struct btrace_target_info *enable_btrace (ptid_t ptid,
  38                                             const struct btrace_config *conf) override;
  39   void disable_btrace (struct btrace_target_info *tinfo) override;
  40   void teardown_btrace (struct btrace_target_info *tinfo) override;
  41   enum btrace_error read_btrace (struct btrace_data *data,
  42                                  struct btrace_target_info *btinfo,
  43                                  enum btrace_read_type type) override;
  44   const struct btrace_config *btrace_conf (const struct btrace_target_info *) override;
  45
  46   /* These two are rewired to low_ versions.  linux-nat.c queries
  47      stopped-by-watchpoint info as soon as an lwp stops (via the low_
  48      methods) and caches the result, to be returned via the normal
  49      non-low methods.  */
  50   bool stopped_by_watchpoint () override
  51   { return linux_nat_target::stopped_by_watchpoint (); }
  52
  53   bool stopped_data_address (CORE_ADDR *addr_p) override
  54   { return linux_nat_target::stopped_data_address (addr_p); }
  55
  56   bool low_stopped_by_watchpoint () override
  57   { return x86_nat_target::stopped_by_watchpoint (); }
  58
  59   bool low_stopped_data_address (CORE_ADDR *addr_p) override
  60   { return x86_nat_target::stopped_data_address (addr_p); }
  61 };
  62
  63 \f
  64
  65 /* Helper for ps_get_thread_area.  Sets BASE_ADDR to a pointer to
  66    the thread local storage (or its descriptor) and returns PS_OK
  67    on success.  Returns PS_ERR on failure.  */
  68
  69 extern ps_err_e x86_linux_get_thread_area (pid_t pid, void *addr,
  70                                            unsigned int *base_addr);
  71 \f
  72
  73 /* Add an x86 GNU/Linux target.  */
  74
  75 extern void x86_linux_add_target (linux_nat_target *t);
  76
  77 #endif