70a0bb6b59
This commit introduces a new function, x86_debug_reg_state, that shared x86 code can use to access the local mirror of a process's debug registers. This function already existed in GDB and was in use by GDB's x86_linux_prepare_to_resume. An equivalent was written for gdbserver and gdbserver's x86_linux_prepare_to_resume was modified to use it. gdb/ChangeLog: * x86-nat.h (x86_debug_reg_state): Move declaration to... * nat/x86-dregs.h (x86_debug_reg_state): New declaration. gdb/gdbserver/ChangeLog: * linux-x86-low.c (x86_debug_reg_state): New function. (x86_linux_prepare_to_resume): Use the above.
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/* Native-dependent code for x86 (i386 and x86-64).
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Low level functions to implement Oeprating System specific
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code to manipulate x86 debug registers.
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Copyright (C) 2009-2015 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef X86_NAT_H
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#define X86_NAT_H 1
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#include "nat/x86-dregs.h"
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/* Hardware-assisted breakpoints and watchpoints. */
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/* Add watchpoint methods to the provided target_ops.
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Targets using x86 family debug registers for watchpoints should call
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this. */
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struct target_ops;
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extern void x86_use_watchpoints (struct target_ops *);
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/* Use this function to set x86_dr_low debug_register_length field
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rather than setting it directly to check that the length is only
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set once. It also enables the 'maint set/show show-debug-regs'
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command. */
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extern void x86_set_debug_register_length (int len);
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/* Use this function to reset the x86-nat.c debug register state. */
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extern void x86_cleanup_dregs (void);
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/* Called whenever GDB is no longer debugging process PID. It deletes
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data structures that keep track of debug register state. */
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extern void x86_forget_process (pid_t pid);
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#endif /* X86_NAT_H */
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