Lines Matching refs:utask
1638 if (!tsk->mm || !tsk->mm->uprobes_state.xol_area || !tsk->utask) in xol_free_insn_slot()
1641 slot_addr = tsk->utask->xol_vaddr; in xol_free_insn_slot()
1662 tsk->utask->xol_vaddr = 0; in xol_free_insn_slot()
1694 struct uprobe_task *utask = current->utask; in uprobe_get_trap_addr() local
1696 if (unlikely(utask && utask->active_uprobe)) in uprobe_get_trap_addr()
1697 return utask->vaddr; in uprobe_get_trap_addr()
1716 struct uprobe_task *utask = t->utask; in uprobe_free_utask() local
1719 if (!utask) in uprobe_free_utask()
1722 if (utask->active_uprobe) in uprobe_free_utask()
1723 put_uprobe(utask->active_uprobe); in uprobe_free_utask()
1725 ri = utask->return_instances; in uprobe_free_utask()
1730 kfree(utask); in uprobe_free_utask()
1731 t->utask = NULL; in uprobe_free_utask()
1744 if (!current->utask) in get_utask()
1745 current->utask = kzalloc(sizeof(struct uprobe_task), GFP_KERNEL); in get_utask()
1746 return current->utask; in get_utask()
1757 t->utask = n_utask; in dup_utask()
1788 if (!__create_xol_area(current->utask->dup_xol_addr) && in dup_xol_work()
1798 struct uprobe_task *utask = current->utask; in uprobe_copy_process() local
1802 t->utask = NULL; in uprobe_copy_process()
1804 if (!utask || !utask->return_instances) in uprobe_copy_process()
1810 if (dup_utask(t, utask)) in uprobe_copy_process()
1821 t->utask->dup_xol_addr = area->vaddr; in uprobe_copy_process()
1822 init_task_work(&t->utask->dup_xol_work, dup_xol_work); in uprobe_copy_process()
1823 task_work_add(t, &t->utask->dup_xol_work, TWA_RESUME); in uprobe_copy_process()
1845 static void cleanup_return_instances(struct uprobe_task *utask, bool chained, in cleanup_return_instances() argument
1848 struct return_instance *ri = utask->return_instances; in cleanup_return_instances()
1853 utask->depth--; in cleanup_return_instances()
1855 utask->return_instances = ri; in cleanup_return_instances()
1861 struct uprobe_task *utask; in prepare_uretprobe() local
1868 utask = get_utask(); in prepare_uretprobe()
1869 if (!utask) in prepare_uretprobe()
1872 if (utask->depth >= MAX_URETPROBE_DEPTH) { in prepare_uretprobe()
1890 cleanup_return_instances(utask, chained, regs); in prepare_uretprobe()
1898 if (!utask->return_instances) { in prepare_uretprobe()
1906 orig_ret_vaddr = utask->return_instances->orig_ret_vaddr; in prepare_uretprobe()
1915 utask->depth++; in prepare_uretprobe()
1916 ri->next = utask->return_instances; in prepare_uretprobe()
1917 utask->return_instances = ri; in prepare_uretprobe()
1928 struct uprobe_task *utask; in pre_ssout() local
1932 utask = get_utask(); in pre_ssout()
1933 if (!utask) in pre_ssout()
1940 utask->xol_vaddr = xol_vaddr; in pre_ssout()
1941 utask->vaddr = bp_vaddr; in pre_ssout()
1949 utask->active_uprobe = uprobe; in pre_ssout()
1950 utask->state = UTASK_SSTEP; in pre_ssout()
1966 struct uprobe_task *utask = t->utask; in uprobe_deny_signal() local
1968 if (likely(!utask || !utask->active_uprobe)) in uprobe_deny_signal()
1971 WARN_ON_ONCE(utask->state != UTASK_SSTEP); in uprobe_deny_signal()
1979 utask->state = UTASK_SSTEP_TRAPPED; in uprobe_deny_signal()
2131 struct uprobe_task *utask; in handle_trampoline() local
2135 utask = current->utask; in handle_trampoline()
2136 if (!utask) in handle_trampoline()
2139 ri = utask->return_instances; in handle_trampoline()
2158 utask->depth--; in handle_trampoline()
2162 utask->return_instances = ri; in handle_trampoline()
2259 static void handle_singlestep(struct uprobe_task *utask, struct pt_regs *regs) in handle_singlestep() argument
2264 uprobe = utask->active_uprobe; in handle_singlestep()
2265 if (utask->state == UTASK_SSTEP_ACK) in handle_singlestep()
2267 else if (utask->state == UTASK_SSTEP_TRAPPED) in handle_singlestep()
2273 utask->active_uprobe = NULL; in handle_singlestep()
2274 utask->state = UTASK_RUNNING; in handle_singlestep()
2300 struct uprobe_task *utask; in uprobe_notify_resume() local
2304 utask = current->utask; in uprobe_notify_resume()
2305 if (utask && utask->active_uprobe) in uprobe_notify_resume()
2306 handle_singlestep(utask, regs); in uprobe_notify_resume()
2321 (!current->utask || !current->utask->return_instances)) in uprobe_pre_sstep_notifier()
2334 struct uprobe_task *utask = current->utask; in uprobe_post_sstep_notifier() local
2336 if (!current->mm || !utask || !utask->active_uprobe) in uprobe_post_sstep_notifier()
2340 utask->state = UTASK_SSTEP_ACK; in uprobe_post_sstep_notifier()