gnu/dist/gdb6/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,
   4    1998, 1999, 2000, 2001, 2002, 2003, 2005
   5    Free Software Foundation, Inc.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330,
  22    Boston, MA 02111-1307, USA.  */
  23
  24 #ifndef NM_LINUX_H
  25 #define NM_LINUX_H
  26
  27 /* GNU/Linux supports the i386 hardware debugging registers.  */
  28 #define I386_USE_GENERIC_WATCHPOINTS
  29
  30 #include "i386/nm-i386.h"
  31 #include "config/nm-linux.h"
  32
  33 /* Support for the user area.  */
  34
  35 /* Return the size of the user struct.  */
  36 extern int kernel_u_size (void);
  37 #define KERNEL_U_SIZE kernel_u_size()
  38
  39 /* This is the amount to substract from u.u_ar0 to get the offset in
  40    the core file of the register values.  */
  41 #define KERNEL_U_ADDR 0
  42
  43 extern CORE_ADDR register_u_addr (CORE_ADDR blockend, int regnum);
  44 #define REGISTER_U_ADDR(addr, blockend, regnum) \
  45   (addr) = register_u_addr (blockend, regnum)
  46 \f
  47 /* Provide access to the i386 hardware debugging registers.  */
  48
  49 extern void i386_linux_dr_set_control (unsigned long control);
  50 #define I386_DR_LOW_SET_CONTROL(control) \
  51   i386_linux_dr_set_control (control)
  52
  53 extern void i386_linux_dr_set_addr (int regnum, CORE_ADDR addr);
  54 #define I386_DR_LOW_SET_ADDR(regnum, addr) \
  55   i386_linux_dr_set_addr (regnum, addr)
  56
  57 extern void i386_linux_dr_reset_addr (int regnum);
  58 #define I386_DR_LOW_RESET_ADDR(regnum) \
  59   i386_linux_dr_reset_addr (regnum)
  60
  61 extern unsigned long i386_linux_dr_get_status (void);
  62 #define I386_DR_LOW_GET_STATUS() \
  63   i386_linux_dr_get_status ()
  64 \f
  65
  66 /* Override copies of {fetch,store}_inferior_registers in `infptrace.c'.  */
  67 #define FETCH_INFERIOR_REGISTERS
  68
  69 /* Nevertheless, define CANNOT_{FETCH,STORE}_REGISTER, because we
  70    might fall back on the code `infptrace.c' (well a copy of that code
  71    in `i386-linux-nat.c' for now) and we can access only the
  72    general-purpose registers in that way.  */
  73 extern int cannot_fetch_register (int regno);
  74 extern int cannot_store_register (int regno);
  75 #define CANNOT_FETCH_REGISTER(regno) cannot_fetch_register (regno)
  76 #define CANNOT_STORE_REGISTER(regno) cannot_store_register (regno)
  77
  78 #ifdef HAVE_PTRACE_GETFPXREGS
  79 /* Include register set support for the SSE registers.  */
  80 #define FILL_FPXREGSET
  81 #endif
  82
  83 #endif /* nm-linux.h */