diff options
| -rw-r--r-- | gdb/ChangeLog | 10 | ||||
| -rw-r--r-- | gdb/breakpoint.c | 52 | ||||
| -rw-r--r-- | gdb/breakpoint.h | 3 |
3 files changed, 62 insertions, 3 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index d340c55..787caa9 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,15 @@ 2003-11-06 Daniel Jacobowitz <drow@mvista.com> + * breakpoint.h (struct bp_location): Add a chain pointer. + * breakpoint.c (ALL_BP_LOCATIONS, ALL_BP_LOCATIONS_SAFE): New + macros. + (bp_location_chain): New variable. + (allocate_bp_location): New function. + (set_raw_breakpoint): Use it. + (delete_breakpoint): Remove ->loc from the bp_location_chain. + +2003-11-06 Daniel Jacobowitz <drow@mvista.com> + * breakpoint.h (enum bp_loc_type, struct bp_location): New. (struct breakpoint): Remove address, shadow_contents, inserted, and duplicate. Add a struct bp_location. diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c index cebd877..6d80d74 100644 --- a/gdb/breakpoint.c +++ b/gdb/breakpoint.c @@ -235,6 +235,15 @@ static int overlay_events_enabled; B ? (TMP=B->next, 1): 0; \ B = TMP) +/* Similar iterators for the low-level breakpoints. */ + +#define ALL_BP_LOCATIONS(B) for (B = bp_location_chain; B; B = B->next) + +#define ALL_BP_LOCATIONS_SAFE(B,TMP) \ + for (B = bp_location_chain; \ + B ? (TMP=B->next, 1): 0; \ + B = TMP) + /* True if SHIFT_INST_REGS defined, false otherwise. */ int must_shift_inst_regs = @@ -249,10 +258,12 @@ int must_shift_inst_regs = int show_breakpoint_hit_counts = 1; -/* Chain of all breakpoints defined. */ +/* Chains of all breakpoints defined. */ struct breakpoint *breakpoint_chain; +struct bp_location *bp_location_chain; + /* Number of last breakpoint made. */ int breakpoint_count; @@ -3896,6 +3907,31 @@ adjust_breakpoint_address (CORE_ADDR bpaddr) } } +/* Allocate a struct bp_location. */ + +struct bp_location * +allocate_bp_location (void) +{ + struct bp_location *loc, *loc_p; + + loc = xmalloc (sizeof (struct bp_location)); + memset (loc, 0, sizeof (*loc)); + + /* Add this breakpoint to the end of the chain. */ + + loc_p = bp_location_chain; + if (loc_p == 0) + bp_location_chain = loc; + else + { + while (loc_p->next) + loc_p = loc_p->next; + loc_p->next = loc; + } + + return loc; +} + /* set_raw_breakpoint() is a low level routine for allocating and partially initializing a breakpoint of type BPTYPE. The newly created breakpoint's address, section, source file name, and line @@ -3918,8 +3954,7 @@ set_raw_breakpoint (struct symtab_and_line sal, enum bptype bptype) b = (struct breakpoint *) xmalloc (sizeof (struct breakpoint)); memset (b, 0, sizeof (*b)); - b->loc = (struct bp_location *) xmalloc (sizeof (struct bp_location)); - memset (b->loc, 0, sizeof (*b->loc)); + b->loc = allocate_bp_location (); b->loc->requested_address = sal.pc; b->loc->address = adjust_breakpoint_address (b->loc->requested_address); if (sal.symtab == NULL) @@ -6569,6 +6604,7 @@ delete_breakpoint (struct breakpoint *bpt) { struct breakpoint *b; bpstat bs; + struct bp_location *loc; if (bpt == NULL) error ("Internal error (attempted to delete a NULL breakpoint)"); @@ -6600,6 +6636,9 @@ delete_breakpoint (struct breakpoint *bpt) if (breakpoint_chain == bpt) breakpoint_chain = bpt->next; + if (bp_location_chain == bpt->loc) + bp_location_chain = bpt->loc->next; + /* If we have callback-style exception catchpoints, don't go through the adjustments to the C++ runtime library etc. if the inferior isn't actually running. target_enable_exception_callback for a @@ -6629,6 +6668,13 @@ delete_breakpoint (struct breakpoint *bpt) break; } + ALL_BP_LOCATIONS (loc) + if (loc->next == bpt->loc) + { + loc->next = bpt->loc->next; + break; + } + check_duplicates (bpt); /* If this breakpoint was inserted, and there is another breakpoint at the same address, we need to insert the other breakpoint. */ diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h index 0716e9c..2dde3c9 100644 --- a/gdb/breakpoint.h +++ b/gdb/breakpoint.h @@ -207,6 +207,9 @@ enum bp_loc_type struct bp_location { + /* Chain pointer to the next breakpoint location. */ + struct bp_location *next; + /* Type of this breakpoint location. */ enum bp_loc_type loc_type; |