| /* 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 */ |