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/* Native macro definitions for GDB on an Intel i[3456]86.
Copyright 2001, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef NM_I386_H
#define NM_I386_H 1
/* Hardware-assisted breakpoints and watchpoints. */
/* Targets should define this to use the generic x86 watchpoint support. */
#ifdef I386_USE_GENERIC_WATCHPOINTS
/* Add watchpoint methods to the provided target_ops.
Targets which define I386_USE_GENERIC_WATCHPOINTS must
call this function. */
struct target_ops;
void i386_use_watchpoints (struct target_ops *);
/* Clear the reference counts and forget everything we knew about DRi. */
extern void i386_cleanup_dregs (void);
/* Insert a watchpoint to watch a memory region which starts at
address ADDR and whose length is LEN bytes. Watch memory accesses
of the type TYPE. Return 0 on success, -1 on failure. */
extern int i386_insert_watchpoint (CORE_ADDR addr, int len, int type);
/* Remove a watchpoint that watched the memory region which starts at
address ADDR, whose length is LEN bytes, and for accesses of the
type TYPE. Return 0 on success, -1 on failure. */
extern int i386_remove_watchpoint (CORE_ADDR addr, int len, int type);
/* Return non-zero if we can watch a memory region that starts at
address ADDR and whose length is LEN bytes. */
extern int i386_region_ok_for_watchpoint (CORE_ADDR addr, int len);
/* Return non-zero if the inferior has some break/watchpoint that
triggered. */
extern int i386_stopped_by_hwbp (void);
/* If the inferior has some break/watchpoint that triggered, set
the address associated with that break/watchpoint and return
true. Otherwise, return false. */
extern int i386_stopped_data_address (struct target_ops *, CORE_ADDR *);
/* Insert a hardware-assisted breakpoint at BP_TGT->placed_address.
Return 0 on success, EBUSY on failure. */
struct bp_target_info;
extern int i386_insert_hw_breakpoint (struct bp_target_info *bp_tgt);
/* Remove a hardware-assisted breakpoint at BP_TGT->placed_address.
Return 0 on success, -1 on failure. */
extern int i386_remove_hw_breakpoint (struct bp_target_info *bp_tgt);
extern int i386_stopped_by_watchpoint (void);
#endif /* I386_USE_GENERIC_WATCHPOINTS */
#endif /* NM_I386_H */
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