2002-05-02 Pierre Muller <muller@ics.u-strasbg.fr>

[deliverable/binutils-gdb.git] / gdb / breakpoint.h

diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h
index 0909c3a89935f4a6e14b80dc6585c4500f59b81f..3a58aad24876d890f6570534f2ee37b9ff41521d 100644 (file)
--- a/gdb/breakpoint.h
+++ b/gdb/breakpoint.h
@@ -27,6 +27,8 @@
 
 #include "gdb-events.h"
 
+struct value;
+
 /* This is the maximum number of bytes a breakpoint instruction can take.
    Feel free to increase it.  It's just used in a few places to size
    arrays that should be independent of the target architecture.  */
@@ -105,6 +107,14 @@ enum bptype
 
     bp_thread_event,
 
+    /* On the same principal, an overlay manager can arrange to call a
+       magic location in the inferior whenever there is an interesting
+       change in overlay status.  GDB can update its overlay tables
+       and fiddle with breakpoints in overlays when this breakpoint 
+       is hit.  */
+
+    bp_overlay_event, 
+
     /* These breakpoints are used to implement the "catch load" command
        on platforms whose dynamic linkers support such functionality.  */
     bp_catch_load,
@@ -249,10 +259,10 @@ struct breakpoint
        valid anywhere (e.g. consists just of global symbols).  */
     struct block *exp_valid_block;
     /* Value of the watchpoint the last time we checked it.  */
-    value_ptr val;
+    struct value *val;
 
     /* Holds the value chain for a hardware watchpoint expression.  */
-    value_ptr val_chain;
+    struct value *val_chain;
 
     /* Holds the address of the related watchpoint_scope breakpoint
        when using watchpoints on local variables (might the concept
@@ -479,7 +489,7 @@ struct bpstats
     /* Commands left to be done.  */
     struct command_line *commands;
     /* Old value associated with a watchpoint.  */
-    value_ptr old_val;
+    struct value *old_val;
 
     /* Nonzero if this breakpoint tells us to print the frame.  */
     char print;
@@ -601,8 +611,9 @@ extern void update_breakpoints_after_exec (void);
 extern int detach_breakpoints (int);
 
 extern void enable_longjmp_breakpoint (void);
-
 extern void disable_longjmp_breakpoint (void);
+extern void enable_overlay_breakpoints (void);
+extern void disable_overlay_breakpoints (void);
 
 extern void set_longjmp_resume_breakpoint (CORE_ADDR, struct frame_info *);
 /* These functions respectively disable or reenable all currently