void
db_task_trap(
int type,
int code,
boolean_t user_space)
{
jmp_buf_t db_jmpbuf;
jmp_buf_t *prev;
boolean_t bkpt;
boolean_t watchpt;
task_t task;
task_t task_space;
task = db_current_task();
task_space = db_target_space(current_act(), user_space);
bkpt = IS_BREAKPOINT_TRAP(type, code);
watchpt = IS_WATCHPOINT_TRAP(type, code);
/*
* Note: we look up PC values in an address space (task_space),
* but print symbols using a (task-specific) symbol table, found
* using task.
*/
db_init_default_act();
db_check_breakpoint_valid();
if (db_stop_at_pc(&bkpt, task, task_space)) {
if (db_inst_count) {
db_printf("After %d instructions (%d loads, %d stores),\n",
db_inst_count, db_load_count, db_store_count);
}
if (bkpt)
db_printf("Breakpoint at ");
else if (watchpt)
db_printf("Watchpoint at ");
else
db_printf("Stopped at ");
db_dot = PC_REGS(DDB_REGS);
prev = db_recover;
if (_setjmp(db_recover = &db_jmpbuf) == 0) {
#if defined(__alpha)
db_print_loc(db_dot, task_space);
db_printf("\n\t");
db_print_inst(db_dot, task_space);
#else /* !defined(__alpha) */
#if defined(__powerpc__)
db_print_loc_and_inst(db_dot, task_space);
#else /* __powerpc__ */
db_print_loc_and_inst(db_dot, task);
#endif /* __powerpc__ */
#endif /* defined(__alpha) */
} else
db_printf("Trouble printing location %#X.\n", db_dot);
db_recover = prev;
db_command_loop();
}
db_restart_at_pc(watchpt, task_space);
}
void
db_trap(int type, int code)
{
boolean_t bkpt;
boolean_t watchpt;
bkpt = IS_BREAKPOINT_TRAP(type, code);
watchpt = IS_WATCHPOINT_TRAP(type, code);
if (db_stop_at_pc(&bkpt)) {
if (db_inst_count) {
db_printf("After %d instructions (%d loads, %d stores),\n",
db_inst_count, db_load_count, db_store_count);
}
if (bkpt)
db_printf("Breakpoint at\t");
else if (watchpt)
db_printf("Watchpoint at\t");
else
db_printf("Stopped at\t");
db_dot = PC_REGS(DDB_REGS);
if (setjmp(db_jmpbuf) == 0)
db_print_loc_and_inst(db_dot, DDB_REGS);
db_command_loop();
}
db_restart_at_pc(watchpt);
}
