gdb/config/i386/nm-linux.h

   1 /* Native support for GNU/Linux, for GDB, the GNU debugger.
   2    Copyright (C) 1986, 1987, 1989, 1992, 1996, 1998
   3    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 2 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, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef NM_LINUX_H
  23 #define NM_LINUX_H
  24
  25 #include "i386/nm-i386v.h"
  26 #include "nm-linux.h"
  27
  28 /* Return sizeof user struct to callers in less machine dependent routines */
  29
  30 #define KERNEL_U_SIZE kernel_u_size()
  31 extern int kernel_u_size PARAMS ((void));
  32
  33 #define U_REGS_OFFSET 0
  34
  35 /* GNU/Linux supports the 386 hardware debugging registers.  */
  36
  37 #define TARGET_HAS_HARDWARE_WATCHPOINTS
  38
  39 #define TARGET_CAN_USE_HARDWARE_WATCHPOINT(type, cnt, ot) 1
  40
  41 /* After a watchpoint trap, the PC points to the instruction after
  42    the one that caused the trap.  Therefore we don't need to step over it.
  43    But we do need to reset the status register to avoid another trap.  */
  44 #define HAVE_CONTINUABLE_WATCHPOINT
  45
  46 #define STOPPED_BY_WATCHPOINT(W)  \
  47   i386_stopped_by_watchpoint (inferior_pid)
  48
  49 /* Use these macros for watchpoint insertion/removal.  */
  50
  51 #define target_insert_watchpoint(addr, len, type)  \
  52   i386_insert_watchpoint (inferior_pid, addr, len, type)
  53
  54 #define target_remove_watchpoint(addr, len, type)  \
  55   i386_remove_watchpoint (inferior_pid, addr, len)
  56
  57 /* We define this if link.h is available, because with ELF we use SVR4 style
  58    shared libraries. */
  59
  60 #ifdef HAVE_LINK_H
  61 #define SVR4_SHARED_LIBS
  62 #include "solib.h"              /* Support for shared libraries. */
  63 #endif
  64
  65 /* Override copies of {fetch,store}_inferior_registers in infptrace.c.  */
  66 #define FETCH_INFERIOR_REGISTERS
  67
  68 extern CORE_ADDR
  69   i386_stopped_by_watchpoint PARAMS ((int));
  70 extern int
  71 i386_insert_watchpoint PARAMS ((int pid, CORE_ADDR addr, int len, int rw));
  72 extern int
  73 i386_remove_watchpoint PARAMS ((int pid, CORE_ADDR addr, int len));
  74
  75 #endif /* #ifndef NM_LINUX_H */