gdb/config/i386/nm-linux.h

   1 /* Native support for GNU/Linux x86.
   2
   3    Copyright 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   4    2000, 2001, 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 #ifndef NM_LINUX_H
  24 #define NM_LINUX_H
  25
  26 /* GNU/Linux supports the i386 hardware debugging registers.  */
  27 #define I386_USE_GENERIC_WATCHPOINTS
  28
  29 #include "i386/nm-i386.h"
  30 #include "config/nm-linux.h"
  31
  32 /* Support for the user area.  */
  33
  34 /* Return the size of the user struct.  */
  35 extern int kernel_u_size (void);
  36 #define KERNEL_U_SIZE kernel_u_size()
  37
  38 /* This is the amount to substract from u.u_ar0 to get the offset in
  39    the core file of the register values.  */
  40 #define KERNEL_U_ADDR 0
  41
  42 extern CORE_ADDR register_u_addr (CORE_ADDR blockend, int regnum);
  43 #define REGISTER_U_ADDR(addr, blockend, regnum) \
  44   (addr) = register_u_addr (blockend, regnum)
  45 \f
  46 /* Provide access to the i386 hardware debugging registers.  */
  47
  48 extern void i386_linux_dr_set_control (unsigned long control);
  49 #define I386_DR_LOW_SET_CONTROL(control) \
  50   i386_linux_dr_set_control (control)
  51
  52 extern void i386_linux_dr_set_addr (int regnum, CORE_ADDR addr);
  53 #define I386_DR_LOW_SET_ADDR(regnum, addr) \
  54   i386_linux_dr_set_addr (regnum, addr)
  55
  56 extern void i386_linux_dr_reset_addr (int regnum);
  57 #define I386_DR_LOW_RESET_ADDR(regnum) \
  58   i386_linux_dr_reset_addr (regnum)
  59
  60 extern unsigned long i386_linux_dr_get_status (void);
  61 #define I386_DR_LOW_GET_STATUS() \
  62   i386_linux_dr_get_status ()
  63 \f
  64
  65 /* Override copies of {fetch,store}_inferior_registers in `infptrace.c'.  */
  66 #define FETCH_INFERIOR_REGISTERS
  67
  68 /* Nevertheless, define CANNOT_{FETCH,STORE}_REGISTER, because we
  69    might fall back on the code `infptrace.c' (well a copy of that code
  70    in `i386-linux-nat.c' for now) and we can access only the
  71    general-purpose registers in that way.  */
  72 extern int cannot_fetch_register (int regno);
  73 extern int cannot_store_register (int regno);
  74 #define CANNOT_FETCH_REGISTER(regno) cannot_fetch_register (regno)
  75 #define CANNOT_STORE_REGISTER(regno) cannot_store_register (regno)
  76
  77 #ifdef HAVE_PTRACE_GETFPXREGS
  78 /* Include register set support for the SSE registers.  */
  79 #define FILL_FPXREGSET
  80 #endif
  81
  82 #endif /* nm-linux.h */