gdb/config/i386/nm-linux.h

   1 /* Native support for Linux/x86.
   2    Copyright 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   3    1999, 2000, 2001
   4    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 "nm-linux.h"
  31
  32 /* Return sizeof user struct to callers in less machine dependent
  33    routines.  */
  34
  35 extern int kernel_u_size (void);
  36 #define KERNEL_U_SIZE kernel_u_size()
  37
  38 #define U_REGS_OFFSET 0
  39
  40 extern CORE_ADDR register_u_addr (CORE_ADDR blockend, int regnum);
  41 #define REGISTER_U_ADDR(addr, blockend, regnum) \
  42   (addr) = register_u_addr (blockend, regnum)
  43
  44 /* Provide access to the i386 hardware debugging registers.  */
  45
  46 extern void i386_linux_dr_set_control (unsigned long control);
  47 #define I386_DR_LOW_SET_CONTROL(control) \
  48   i386_linux_dr_set_control (control)
  49
  50 extern void i386_linux_dr_set_addr (int regnum, CORE_ADDR addr);
  51 #define I386_DR_LOW_SET_ADDR(regnum, addr) \
  52   i386_linux_dr_set_addr (regnum, addr)
  53
  54 extern void i386_linux_dr_reset_addr (int regnum);
  55 #define I386_DR_LOW_RESET_ADDR(regnum) \
  56   i386_linux_dr_reset_addr (regnum)
  57
  58 extern unsigned long i386_linux_dr_get_status (void);
  59 #define I386_DR_LOW_GET_STATUS() \
  60   i386_linux_dr_get_status ()
  61
  62 /* We define this if link.h is available, because with ELF we use SVR4
  63    style shared libraries.  */
  64
  65 #ifdef HAVE_LINK_H
  66 #define SVR4_SHARED_LIBS
  67 #include "solib.h"              /* Support for shared libraries.  */
  68 #endif
  69
  70 /* Override copies of {fetch,store}_inferior_registers in `infptrace.c'.  */
  71 #define FETCH_INFERIOR_REGISTERS
  72
  73 /* Nevertheless, define CANNOT_{FETCH,STORE}_REGISTER, because we
  74    might fall back on the code `infptrace.c' (well a copy of that code
  75    in `i386-linux-nat.c' for now) and we can access only the
  76    general-purpose registers in that way.  */
  77 extern int cannot_fetch_register (int regno);
  78 extern int cannot_store_register (int regno);
  79 #define CANNOT_FETCH_REGISTER(regno) cannot_store_register (regno)
  80 #define CANNOT_STORE_REGISTER(regno) cannot_fetch_register (regno)
  81
  82 /* Override child_resume in `infptrace.c'.  */
  83 #define CHILD_RESUME
  84
  85 /* FIXME: kettenis/2000-09-03: This should be moved to ../nm-linux.h
  86    once we have converted all Linux targets to use the new threads
  87    stuff (without the #undef of course).  */
  88
  89 extern int lin_lwp_prepare_to_proceed (void);
  90 #undef PREPARE_TO_PROCEED
  91 #define PREPARE_TO_PROCEED(select_it) lin_lwp_prepare_to_proceed ()
  92
  93 extern void lin_lwp_attach_lwp (ptid_t ptid, int verbose);
  94 #define ATTACH_LWP(ptid, verbose) lin_lwp_attach_lwp ((ptid), (verbose))
  95
  96 #include <signal.h>
  97
  98 extern void lin_thread_get_thread_signals (sigset_t *mask);
  99 #define GET_THREAD_SIGNALS(mask) lin_thread_get_thread_signals (mask)
 100
 101 #endif /* nm_linux.h */