gdb/x86-linux-nat.h

   1 /* Native-dependent code for GNU/Linux x86 (i386 and x86-64).
   2
   3    Copyright (C) 1999-2024 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 GDB_X86_LINUX_NAT_H
  21 #define GDB_X86_LINUX_NAT_H
  22
  23 #include "gdb_proc_service.h"
  24 #include "linux-nat.h"
  25 #include "gdbsupport/x86-xstate.h"
  26 #include "x86-nat.h"
  27 #include "nat/x86-linux.h"
  28
  29 struct x86_linux_nat_target : public x86_nat_target<linux_nat_target>
  30 {
  31   virtual ~x86_linux_nat_target () override = 0;
  32
  33   /* Add the description reader.  */
  34   const struct target_desc *read_description () override;
  35
  36   struct btrace_target_info *enable_btrace (thread_info *tp,
  37                                             const struct btrace_config *conf) override;
  38   void disable_btrace (struct btrace_target_info *tinfo) override;
  39   void teardown_btrace (struct btrace_target_info *tinfo) override;
  40   enum btrace_error read_btrace (struct btrace_data *data,
  41                                  struct btrace_target_info *btinfo,
  42                                  enum btrace_read_type type) override;
  43   const struct btrace_config *btrace_conf (const struct btrace_target_info *) override;
  44
  45   x86_xsave_layout fetch_x86_xsave_layout () override
  46   { return m_xsave_layout; }
  47
  48   /* These two are rewired to low_ versions.  linux-nat.c queries
  49      stopped-by-watchpoint info as soon as an lwp stops (via the low_
  50      methods) and caches the result, to be returned via the normal
  51      non-low methods.  */
  52   bool stopped_by_watchpoint () override
  53   { return linux_nat_target::stopped_by_watchpoint (); }
  54
  55   bool stopped_data_address (CORE_ADDR *addr_p) override
  56   { return linux_nat_target::stopped_data_address (addr_p); }
  57
  58   bool low_stopped_by_watchpoint () override
  59   { return x86_nat_target::stopped_by_watchpoint (); }
  60
  61   bool low_stopped_data_address (CORE_ADDR *addr_p) override
  62   { return x86_nat_target::stopped_data_address (addr_p); }
  63
  64   void low_new_fork (struct lwp_info *parent, pid_t child_pid) override;
  65
  66   void low_forget_process (pid_t pid) override
  67   { x86_forget_process (pid); }
  68
  69   void low_prepare_to_resume (struct lwp_info *lwp) override
  70   { x86_linux_prepare_to_resume (lwp); }
  71
  72   void low_new_thread (struct lwp_info *lwp) override
  73   { x86_linux_new_thread (lwp); }
  74
  75   void low_delete_thread (struct arch_lwp_info *lwp) override
  76   { x86_linux_delete_thread (lwp); }
  77
  78 protected:
  79   /* Override the GNU/Linux inferior startup hook.  */
  80   void post_startup_inferior (ptid_t) override;
  81
  82 private:
  83   x86_xsave_layout m_xsave_layout;
  84 };
  85
  86 \f
  87
  88 /* Helper for ps_get_thread_area.  Sets BASE_ADDR to a pointer to
  89    the thread local storage (or its descriptor) and returns PS_OK
  90    on success.  Returns PS_ERR on failure.  */
  91
  92 extern ps_err_e x86_linux_get_thread_area (pid_t pid, void *addr,
  93                                            unsigned int *base_addr);
  94
  95 #endif /* GDB_X86_LINUX_NAT_H */