xref: /netbsd-src/external/gpl3/gdb.old/dist/gdb/linux-nat-trad.h (revision 2dd295436a0082eb4f8d294f4aa73c223413d0f2)
1 /* Generic GNU/Linux target using traditional ptrace register access.
2 
3    Copyright (C) 2000-2020 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 LINUX_NAT_TRAD_H
21 #define LINUX_NAT_TRAD_H
22 
23 #include "linux-nat.h"
24 
25 /* A prototype GNU/Linux target using traditional ptrace register
26    access.  A concrete type should override REGISTER_U_OFFSET.  */
27 
28 class linux_nat_trad_target : public linux_nat_target
29 {
30 public:
31   void fetch_registers (struct regcache *, int) override;
32   void store_registers (struct regcache *, int) override;
33 
34 protected:
35   /* Return the offset within the user area where a particular
36      register is stored.  */
37   virtual CORE_ADDR register_u_offset (struct gdbarch *gdbarch,
38 				       int regnum, int store) = 0;
39 
40 private:
41   /* Helpers.  See definition.  */
42   void fetch_register (struct regcache *regcache, int regnum);
43   void store_register (const struct regcache *regcache, int regnum);
44 };
45 
46 #endif /* LINUX_NAT_TRAD_H */
47