61 	void			*area;  member
136 	struct kcov_remote_area *area;  in kcov_remote_area_get()  local
140 		area = list_entry(pos, struct kcov_remote_area, list);  in kcov_remote_area_get()
141 		if (area->size == size) {  in kcov_remote_area_get()
142 			list_del(&area->list);  in kcov_remote_area_get()
143 			return area;  in kcov_remote_area_get()
150 static void kcov_remote_area_put(struct kcov_remote_area *area,  in kcov_remote_area_put()  argument
153 	INIT_LIST_HEAD(&area->list);  in kcov_remote_area_put()
154 	area->size = size;  in kcov_remote_area_put()
155 	list_add(&area->list, &kcov_remote_areas);  in kcov_remote_area_put()
161 	kmsan_unpoison_memory(&area->list, sizeof(area->list));  in kcov_remote_area_put()
202 	unsigned long *area;  in __sanitizer_cov_trace_pc()  local
210 	area = t->kcov_area;  in __sanitizer_cov_trace_pc()
212 	pos = READ_ONCE(area[0]) + 1;  in __sanitizer_cov_trace_pc()
221 		WRITE_ONCE(area[0], pos);  in __sanitizer_cov_trace_pc()
223 		area[pos] = ip;  in __sanitizer_cov_trace_pc()
232 	u64 *area;  in write_comp_data()  local
245 	area = (u64 *)t->kcov_area;  in write_comp_data()
248 	count = READ_ONCE(area[0]);  in write_comp_data()
255 		WRITE_ONCE(area[0], count + 1);  in write_comp_data()
257 		area[start_index] = type;  in write_comp_data()
258 		area[start_index + 1] = arg1;  in write_comp_data()
259 		area[start_index + 2] = arg2;  in write_comp_data()
260 		area[start_index + 3] = ip;  in write_comp_data()
346 			unsigned int size, void *area, enum kcov_mode mode,  in kcov_start()  argument
349 	kcov_debug("t = %px, size = %u, area = %px\n", t, size, area);  in kcov_start()
353 	t->kcov_area = area;  in kcov_start()
428 		vfree(kcov->area);  in kcov_put()
486 	if (kcov->area == NULL || vma->vm_pgoff != 0 ||  in kcov_mmap()
494 		page = vmalloc_to_page(kcov->area + off);  in kcov_mmap()
550 	unsigned long *area = kcov->area;  in kcov_fault_in_area()  local
554 		READ_ONCE(area[offset]);  in kcov_fault_in_area()
592 		if (kcov->mode != KCOV_MODE_INIT || !kcov->area)  in kcov_ioctl_locked()
602 		kcov_start(t, kcov, kcov->size, kcov->area, kcov->mode,  in kcov_ioctl_locked()
620 		if (kcov->mode != KCOV_MODE_INIT || !kcov->area)  in kcov_ioctl_locked()
688 	void *area;  in kcov_ioctl()  local
703 		area = vmalloc_user(size * sizeof(unsigned long));  in kcov_ioctl()
704 		if (area == NULL)  in kcov_ioctl()
709 			vfree(area);  in kcov_ioctl()
712 		kcov->area = area;  in kcov_ioctl()
842 	void *area;  in kcov_remote_start()  local
893 		area = kcov_remote_area_get(size);  in kcov_remote_start()
896 		area = this_cpu_ptr(&kcov_percpu_data)->irq_area;  in kcov_remote_start()
901 	if (!area) {  in kcov_remote_start()
903 		area = vmalloc(size * sizeof(unsigned long));  in kcov_remote_start()
904 		if (!area) {  in kcov_remote_start()
912 	*(u64 *)area = 0;  in kcov_remote_start()
918 	kcov_start(t, kcov, size, area, mode, sequence);  in kcov_remote_start()
986 	void *area;  in kcov_remote_stop()  local
1017 	area = t->kcov_area;  in kcov_remote_stop()
1033 		kcov_move_area(kcov->mode, kcov->area, kcov->size, area);  in kcov_remote_stop()
1038 		kcov_remote_area_put(area, size);  in kcov_remote_stop()
1063 		void *area = vmalloc_node(CONFIG_KCOV_IRQ_AREA_SIZE *  in kcov_init()  local
1065 		if (!area)  in kcov_init()
1067 		per_cpu_ptr(&kcov_percpu_data, cpu)->irq_area = area;  in kcov_init()