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* target.h (struct target_ops): Add

Browse Source 
to_watchpoint_addr_within_range.
(target_watchpoint_addr_within_range): New function.
* target.c (update_current_target): Inherit
to_watchpoint_addr_within_range, defaulting to
default_watchpoint_addr_within_range.
(default_watchpoint_addr_within_range): New function.
(debug_to_watchpoint_addr_within_range): New function.
(setup_target_debug): Set to_watchpoint_addr_within_range.
* ppc-linux-nat.c (ppc_linux_watchpoint_addr_within_range):
New function.
(_initialize_ppc_linux_nat): Set to_watchpoint_addr_within_range.
* breakpoint.c (watchpoints_triggered): Use
target_watchpoint_addr_within_range.

* gdbint.texinfo (Algorithms): Describe
target_watchpoint_addr_within_range.
This commit is contained in:
Andreas Schwab
2008-05-02 11:07:25 +00:00
parent a99f88dcfc
commit 5009afc5ba
7 changed files with 89 additions and 6 deletions
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37
gdb/target.c
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@@ -49,6 +49,9 @@ static void kill_or_be_killed (int);
static void default_terminal_info (char *, int);
static int default_watchpoint_addr_within_range (struct target_ops *,
CORE_ADDR, CORE_ADDR, int);
static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int);
static int nosymbol (char *, CORE_ADDR *);
@@ -131,6 +134,9 @@ static int debug_to_stopped_by_watchpoint (void);
static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *);
static int debug_to_watchpoint_addr_within_range (struct target_ops *,
CORE_ADDR, CORE_ADDR, int);
static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int);
static void debug_to_terminal_init (void);
@@ -416,9 +422,10 @@ update_current_target (void)
INHERIT (to_insert_watchpoint, t);
INHERIT (to_remove_watchpoint, t);
INHERIT (to_stopped_data_address, t);
INHERIT (to_stopped_by_watchpoint, t);
INHERIT (to_have_steppable_watchpoint, t);
INHERIT (to_have_continuable_watchpoint, t);
INHERIT (to_stopped_by_watchpoint, t);
INHERIT (to_watchpoint_addr_within_range, t);
INHERIT (to_region_ok_for_hw_watchpoint, t);
INHERIT (to_terminal_init, t);
INHERIT (to_terminal_inferior, t);
@@ -544,6 +551,8 @@ update_current_target (void)
de_fault (to_stopped_data_address,
(int (*) (struct target_ops *, CORE_ADDR *))
return_zero);
de_fault (to_watchpoint_addr_within_range,
default_watchpoint_addr_within_range);
de_fault (to_region_ok_for_hw_watchpoint,
default_region_ok_for_hw_watchpoint);
de_fault (to_terminal_init,
@@ -1880,6 +1889,14 @@ default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
return (len <= TYPE_LENGTH (builtin_type_void_data_ptr));
}
static int
default_watchpoint_addr_within_range (struct target_ops *target,
CORE_ADDR addr,
CORE_ADDR start, int length)
{
return addr >= start && addr < start + length;
}
static int
return_zero (void)
{
@@ -2447,6 +2464,23 @@ debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr)
return retval;
}
static int
debug_to_watchpoint_addr_within_range (struct target_ops *target,
CORE_ADDR addr,
CORE_ADDR start, int length)
{
int retval;
retval = debug_target.to_watchpoint_addr_within_range (target, addr,
start, length);
fprintf_filtered (gdb_stdlog,
"target_watchpoint_addr_within_range (0x%lx, 0x%lx, %d) = %d\n",
(unsigned long) addr, (unsigned long) start, length,
retval);
return retval;
}
static int
debug_to_insert_hw_breakpoint (struct bp_target_info *bp_tgt)
{
@@ -2790,6 +2824,7 @@ setup_target_debug (void)
current_target.to_remove_watchpoint = debug_to_remove_watchpoint;
current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint;
current_target.to_stopped_data_address = debug_to_stopped_data_address;
current_target.to_watchpoint_addr_within_range = debug_to_watchpoint_addr_within_range;
current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint;
current_target.to_terminal_init = debug_to_terminal_init;
current_target.to_terminal_inferior = debug_to_terminal_inferior;