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[deliverable/binutils-gdb.git] / gdb / i386-nat.h

diff --git a/gdb/i386-nat.h b/gdb/i386-nat.h
index f49b9f60bfd87f45c7f64c2207a59e79d5d719b2..819c6b8e656630433c51a2e9e452f01e1a043a34 100644 (file)
--- a/gdb/i386-nat.h
+++ b/gdb/i386-nat.h
@@ -3,8 +3,7 @@
    Low level functions to implement Oeprating System specific
    code to manipulate I386 debug registers.
 
-   Copyright (C) 2009
-   Free Software Foundation, Inc.
+   Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -43,22 +42,25 @@ extern void i386_use_watchpoints (struct target_ops *);
    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
+   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
+                                 register to a given value for all LWPs
 
       set_addr                 -- put an address into one debug
-                                 register
+                                 register for all LWPs
 
       reset_addr               -- reset the address stored in
-                                 one debug register
+                                 one debug register for all LWPs
 
       get_status               -- return the value of the debug
-                                 status (DR6) register.
+                                 status (DR6) register for current LWP
+
+      unset_status             -- unset the specified bits of the debug
+                                 status (DR6) register for all LWPs
 
    Additionally, the native file should set the debug_register_length
    field to 4 or 8 depending on the number of bytes used for
@@ -70,6 +72,7 @@ struct i386_dr_low_type
     void (*set_addr) (int, CORE_ADDR);
     void (*reset_addr) (int);
     unsigned long (*get_status) (void);
+    void (*unset_status) (unsigned long);
     int debug_register_length;
   };