struct point_cond_list *next;
};
+struct point_command_list
+{
+ /* Pointer to the agent expression that is the breakpoint's
+ commands. */
+ struct agent_expr *cmd;
+
+ /* Flag that is true if this command should run even while GDB is
+ disconnected. */
+ int persistence;
+
+ /* Pointer to the next command. */
+ struct point_command_list *next;
+};
+
/* A high level (in gdbserver's perspective) breakpoint. */
struct breakpoint
{
target's side. */
struct point_cond_list *cond_list;
+ /* Point to the list of commands to run when this is hit. */
+ struct point_command_list *command_list;
+
/* Link to this breakpoint's raw breakpoint. This is always
non-NULL. */
struct raw_breakpoint *raw;
int (*handler) (CORE_ADDR);
};
+int
+any_persistent_commands ()
+{
+ struct process_info *proc = current_process ();
+ struct breakpoint *bp;
+ struct point_command_list *cl;
+
+ for (bp = proc->breakpoints; bp != NULL; bp = bp->next)
+ {
+ for (cl = bp->command_list; cl != NULL; cl = cl->next)
+ if (cl->persistence)
+ return 1;
+ }
+
+ return 0;
+}
+
static struct raw_breakpoint *
find_raw_breakpoint_at (CORE_ADDR where)
{
return (value != 0);
}
+/* Add commands COMMANDS to GDBserver's breakpoint BP. */
+
+void
+add_commands_to_breakpoint (struct breakpoint *bp,
+ struct agent_expr *commands, int persist)
+{
+ struct point_command_list *new_cmd;
+
+ /* Create new command. */
+ new_cmd = xcalloc (1, sizeof (*new_cmd));
+ new_cmd->cmd = commands;
+ new_cmd->persistence = persist;
+
+ /* Add commands to the list. */
+ new_cmd->next = bp->command_list;
+ bp->command_list = new_cmd;
+}
+
+/* Add a target-side command COMMAND to the breakpoint at ADDR. */
+
+int
+add_breakpoint_commands (CORE_ADDR addr, char **command, int persist)
+{
+ struct breakpoint *bp = find_gdb_breakpoint_at (addr);
+ char *actparm = *command;
+ struct agent_expr *cmd;
+
+ if (bp == NULL)
+ return 1;
+
+ if (command == NULL)
+ return 1;
+
+ cmd = gdb_parse_agent_expr (&actparm);
+
+ if (cmd == NULL)
+ {
+ fprintf (stderr, "Command evaluation failed. "
+ "Disabling.\n");
+ return 0;
+ }
+
+ add_commands_to_breakpoint (bp, cmd, persist);
+
+ *command = actparm;
+
+ return 0;
+}
+
+/* Return true if there are no commands to run at this location,
+ which likely means we want to report back to GDB. */
+int
+gdb_no_commands_at_breakpoint (CORE_ADDR where)
+{
+ struct breakpoint *bp = find_gdb_breakpoint_at (where);
+
+ if (bp == NULL)
+ return 0;
+
+ if (debug_threads)
+ fprintf (stderr, "at 0x%s, bp command_list is 0x%x\n",
+ paddress (where), (int) bp->command_list);
+ return (bp->command_list == NULL);
+}
+
+void
+run_breakpoint_commands (CORE_ADDR where)
+{
+ /* Fetch registers for the current inferior. */
+ struct breakpoint *bp = find_gdb_breakpoint_at (where);
+ ULONGEST value = 0;
+ struct point_command_list *cl;
+ int err = 0;
+
+ struct regcache *regcache = get_thread_regcache (current_inferior, 1);
+
+ if (bp == NULL)
+ return;
+
+ for (cl = bp->command_list;
+ cl && !value && !err; cl = cl->next)
+ {
+ /* Run the command. */
+ err = gdb_eval_agent_expr (regcache, NULL, cl->cmd, &value);
+
+ /* If one command has a problem, stop digging the hole deeper. */
+ if (err)
+ break;
+ }
+}
+
/* Return 1 if there is a breakpoint inserted in address WHERE
and if its condition, if it exists, is true. */