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author | Pierre Muller <muller@sourceware.org> | 2009-05-14 09:37:00 +0000 |
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committer | Pierre Muller <muller@sourceware.org> | 2009-05-14 09:37:00 +0000 |
commit | 9bb9e8ade770027f5cced2856574e2d317b15254 (patch) | |
tree | f003486763df1c1d30ac87826befffa182dad837 /gdb/i386-nat.h | |
parent | 7a893eb8c1c037df38184beb7d993222a68d7c3d (diff) | |
download | gdb-9bb9e8ade770027f5cced2856574e2d317b15254.zip gdb-9bb9e8ade770027f5cced2856574e2d317b15254.tar.gz gdb-9bb9e8ade770027f5cced2856574e2d317b15254.tar.bz2 |
Remove all i386 debug register low level macros in config nm files.
(I386_DR_LOW_SET_ADDR, I386_DR_LOW_RESET_ADDR): Remove.
(I386_DR_LOW_GET_STATUS, I386_DR_LOW_SET_CONTROL): Remove.
(I386_USE_GENERIC_WATCHPOIINTS): Remove.
* i386-nat.h: New file (adapted from config/i386/nm-i386.h).
(struct i386_dr_low_type): New type.
(i386_dr_low): New global variable.
* i386-nat.c (TARGET_HAS_DR_LEN_8): Update macro.
(i386_insert_aligned_watchpoint): Replace i386 dr low macros by
i386_dr_low struct variable fields.
(i386_remove_aligned_watchpoint): Likewise.
(i386_stopped_data_address): Likewise.
(i386_stopped_by_hwbp): Likewise.
(show_debug_regs_command_added): New static variable.
(add_show_debug_regs_command): New static function.
(i386_use_watchpoints): Call add_show_debug_regs_command if not done.
(i386_set_debug_register_length): New function.
(_initialize_i386_nat): Delete.
* amd64-linux-nat.c: Include "i386-nat.h".
(amd64_linux_dr_set_control): Change to static.
(amd64_linux_dr_get_status): Change to static.
(amd64_linux_dr_set_addr,amd64_linux_dr_reset_addr): Likewise.
(_initialize_amd64_linux_nat): Set i386_dr_low variable fields.
* go32-nat.c: Include "i386-nat.h".
(go32_set_addr): Change to static.
(go32_set_dr7): Change to static. Change arg type to unisgned long.
(go32_get_dr6): Change to static. Change return type to unisnged long.
(init_go32_ops): Set i386_dr_low variable fields.
* i386-linux-nat.c: Include "i386-nat.h".
(i386_linux_dr_set_control, i386_linux_dr_get_status): Change to static.
(i386_linux_dr_set_addr, i386_linux_dr_reset_addr): Idem.
(_initialize_i386_linux_nat): Set i386_dr_low variable fields.
* i386bsd-nat.h: Declare functions used for
i386_dr_low fields in i386fbsd-nat.c.
* i386fbsd-nat.c: Include "i386-nat.h".
(_initialize_i386fbsd_nat): Set i386_dr_low variable fields.
* windows-nat.c: Include "i386-nat.h".
(cygwin_set_dr, cygwin_get_dr6, cygwin_set_dr7): Add prototypes.
Change to static.
(cygwin_get_dr6): Change return type to unisnged long.
(cygwin_set_dr7): Change arg type to unisgned long.
(init_windows_ops): Set i386_dr_low function fields.
* amd64-windows-nat.c (_initialize_amd64_windows_nat): Call
i386_set_debug_register_length.
* i386-windows-nat.c (_initialize_i386_windows_nat): Likewise.
* config/i386/nm-cygwin.h: Remove all I386_* macros.
* config/i386/nm-cygwin64.h: Likewise.
* config/i386/nm-fbsd.h: Likewise.
* config/i386/nm-linux.h: Likewise.
* config/i386/nm-i386.h: Remove completely.
* config/i386/nm-go32.h: Remove completely.
* config/i386/nm-linux64.h: Remove completely.
* config/i386/go32.mh (NAT_FILE): Remove entry.
* config/i386/linux64.h (NAT_FILE): Change to config/nm-linux.h.
Diffstat (limited to 'gdb/i386-nat.h')
-rw-r--r-- | gdb/i386-nat.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/gdb/i386-nat.h b/gdb/i386-nat.h new file mode 100644 index 0000000..f49b9f6 --- /dev/null +++ b/gdb/i386-nat.h @@ -0,0 +1,89 @@ +/* Native-dependent code for the i386. + + Low level functions to implement Oeprating System specific + code to manipulate I386 debug registers. + + Copyright (C) 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/>. */ + +#include "defs.h" + +#ifndef I386_NAT_H +#define I386_NAT_H 1 + +/* Hardware-assisted breakpoints and watchpoints. */ + +/* Add watchpoint methods to the provided target_ops. + Targets using i386 family debug registers for watchpoints should call + this. */ +struct target_ops; +extern void i386_use_watchpoints (struct target_ops *); + +/* Support for hardware watchpoints and breakpoints using the i386 + debug registers. + + This provides several functions for inserting and removing + hardware-assisted breakpoints and watchpoints, testing if one or + more of the watchpoints triggered and at what address, checking + whether a given region can be watched, etc. + + In addition, each target should provide several low-level functions + regrouped into i386_dr_low_type struct below. These functions + that will be called to insert watchpoints and hardware breakpoints + into the inferior, remove them, and check their status. These + functions are: + + set_control -- set the debug control (DR7) + register to a given value + + set_addr -- put an address into one debug + register + + reset_addr -- reset the address stored in + one debug register + + get_status -- return the value of the debug + status (DR6) register. + + Additionally, the native file should set the debug_register_length + field to 4 or 8 depending on the number of bytes used for + deubg registers. */ + +struct i386_dr_low_type + { + void (*set_control) (unsigned long); + void (*set_addr) (int, CORE_ADDR); + void (*reset_addr) (int); + unsigned long (*get_status) (void); + int debug_register_length; + }; + +extern struct i386_dr_low_type i386_dr_low; + +/* Use this function to set i386_dr_low debug_register_length field + rather than setting it directly to check that the length is only + set once. It also enables the 'maint set/show show-debug-regs' + command. */ + +extern void i386_set_debug_register_length (int len); + +/* Use this function to reset the i386-nat.c debug register state. */ + +extern void i386_cleanup_dregs (void); + +#endif /* I386_NAT_H */ |