void
delete_breakpoint(struct process *proc, void *addr)
{
debug(DEBUG_FUNCTION, "delete_breakpoint(pid=%d, addr=%p)", proc->pid, addr);
struct process *leader = proc->leader;
assert(leader != NULL);
struct breakpoint *sbp = dict_find_entry(leader->breakpoints, addr);
assert(sbp != NULL);
/* This should only happen on out-of-memory conditions. */
if (sbp == NULL)
return;
if (breakpoint_turn_off(sbp, proc) < 0) {
fprintf(stderr, "Couldn't turn off the breakpoint %s@%p\n",
breakpoint_name(sbp), sbp->addr);
return;
}
if (sbp->enabled == 0) {
proc_remove_breakpoint(leader, sbp);
breakpoint_destroy(sbp);
free(sbp);
}
}
void
proc_remove_breakpoint(struct Process *proc, struct breakpoint *bp)
{
debug(DEBUG_FUNCTION, "proc_remove_breakpoint(pid=%d, %s@%p)",
proc->pid, breakpoint_name(bp), bp->addr);
check_leader(proc);
struct breakpoint *removed = dict_remove(proc->breakpoints, bp->addr);
assert(removed == bp);
}
int
proc_add_breakpoint(struct Process *proc, struct breakpoint *bp)
{
debug(DEBUG_FUNCTION, "proc_add_breakpoint(pid=%d, %s@%p)",
proc->pid, breakpoint_name(bp), bp->addr);
check_leader(proc);
/* XXX We might merge bp->libsym instead of the following
* assert, but that's not necessary right now. Read the
* comment in breakpoint_for_symbol. */
assert(dict_find_entry(proc->breakpoints, bp->addr) == NULL);
if (dict_enter(proc->breakpoints, bp->addr, bp) < 0) {
fprintf(stderr,
"couldn't enter breakpoint %s@%p to dictionary: %s\n",
breakpoint_name(bp), bp->addr, strerror(errno));
return -1;
}
return 0;
}
