49 static int os_reason_alloc_buffer_internal(os_reason_t cur_reason, uint32_t osr_bufsize,
77 os_reason_dealloc_buffer(os_reason_t cur_reason)  in os_reason_dealloc_buffer()  argument
79 	assert(cur_reason != OS_REASON_NULL);  in os_reason_dealloc_buffer()
80 	LCK_MTX_ASSERT(&cur_reason->osr_lock, LCK_MTX_ASSERT_OWNED);  in os_reason_dealloc_buffer()
82 	if (cur_reason->osr_kcd_buf != NULL && cur_reason->osr_bufsize != 0) {  in os_reason_dealloc_buffer()
83 		kfree_data(cur_reason->osr_kcd_buf, cur_reason->osr_bufsize);  in os_reason_dealloc_buffer()
86 	cur_reason->osr_bufsize = 0;  in os_reason_dealloc_buffer()
87 	cur_reason->osr_kcd_buf = NULL;  in os_reason_dealloc_buffer()
88 	bzero(&cur_reason->osr_kcd_descriptor, sizeof(cur_reason->osr_kcd_descriptor));  in os_reason_dealloc_buffer()
106 os_reason_alloc_buffer(os_reason_t cur_reason, uint32_t osr_bufsize)  in os_reason_alloc_buffer()  argument
108 	return os_reason_alloc_buffer_internal(cur_reason, osr_bufsize, Z_WAITOK);  in os_reason_alloc_buffer()
126 os_reason_alloc_buffer_noblock(os_reason_t cur_reason, uint32_t osr_bufsize)  in os_reason_alloc_buffer_noblock()  argument
128 	return os_reason_alloc_buffer_internal(cur_reason, osr_bufsize, Z_NOWAIT);  in os_reason_alloc_buffer_noblock()
132 os_reason_alloc_buffer_internal(os_reason_t cur_reason, uint32_t osr_bufsize,  in os_reason_alloc_buffer_internal()  argument
135 	if (cur_reason == OS_REASON_NULL) {  in os_reason_alloc_buffer_internal()
143 	lck_mtx_lock(&cur_reason->osr_lock);  in os_reason_alloc_buffer_internal()
145 	os_reason_dealloc_buffer(cur_reason);  in os_reason_alloc_buffer_internal()
148 		lck_mtx_unlock(&cur_reason->osr_lock);  in os_reason_alloc_buffer_internal()
152 	cur_reason->osr_kcd_buf = kalloc_data_tag(osr_bufsize, flags | Z_ZERO,  in os_reason_alloc_buffer_internal()
155 	if (cur_reason->osr_kcd_buf == NULL) {  in os_reason_alloc_buffer_internal()
156 		lck_mtx_unlock(&cur_reason->osr_lock);  in os_reason_alloc_buffer_internal()
160 	cur_reason->osr_bufsize = osr_bufsize;  in os_reason_alloc_buffer_internal()
162 	if (kcdata_memory_static_init(&cur_reason->osr_kcd_descriptor,  in os_reason_alloc_buffer_internal()
163 	    (mach_vm_address_t)cur_reason->osr_kcd_buf,  in os_reason_alloc_buffer_internal()
166 		os_reason_dealloc_buffer(cur_reason);  in os_reason_alloc_buffer_internal()
168 		lck_mtx_unlock(&cur_reason->osr_lock);  in os_reason_alloc_buffer_internal()
172 	lck_mtx_unlock(&cur_reason->osr_lock);  in os_reason_alloc_buffer_internal()
182 os_reason_get_kcdata_descriptor(os_reason_t cur_reason)  in os_reason_get_kcdata_descriptor()  argument
184 	if (cur_reason == OS_REASON_NULL) {  in os_reason_get_kcdata_descriptor()
188 	if (cur_reason->osr_kcd_buf == NULL) {  in os_reason_get_kcdata_descriptor()
192 	assert(cur_reason->osr_kcd_descriptor.kcd_addr_begin ==  in os_reason_get_kcdata_descriptor()
193 	    (mach_vm_address_t)cur_reason->osr_kcd_buf);  in os_reason_get_kcdata_descriptor()
194 	if (cur_reason->osr_kcd_descriptor.kcd_addr_begin !=  in os_reason_get_kcdata_descriptor()
195 	    (mach_vm_address_t)cur_reason->osr_kcd_buf) {  in os_reason_get_kcdata_descriptor()
199 	return &cur_reason->osr_kcd_descriptor;  in os_reason_get_kcdata_descriptor()
206 os_reason_ref(os_reason_t cur_reason)  in os_reason_ref()  argument
208 	if (cur_reason == OS_REASON_NULL) {  in os_reason_ref()
212 	lck_mtx_lock(&cur_reason->osr_lock);  in os_reason_ref()
213 	os_ref_retain_locked(&cur_reason->osr_refcount);  in os_reason_ref()
214 	lck_mtx_unlock(&cur_reason->osr_lock);  in os_reason_ref()
223 os_reason_free(os_reason_t cur_reason)  in os_reason_free()  argument
225 	if (cur_reason == OS_REASON_NULL) {  in os_reason_free()
229 	lck_mtx_lock(&cur_reason->osr_lock);  in os_reason_free()
231 	if (os_ref_release_locked(&cur_reason->osr_refcount) > 0) {  in os_reason_free()
232 		lck_mtx_unlock(&cur_reason->osr_lock);  in os_reason_free()
236 	os_reason_dealloc_buffer(cur_reason);  in os_reason_free()
238 	lck_mtx_unlock(&cur_reason->osr_lock);  in os_reason_free()
239 	lck_mtx_destroy(&cur_reason->osr_lock, &os_reason_lock_grp);  in os_reason_free()
241 	zfree(os_reason_zone, cur_reason);  in os_reason_free()
248 os_reason_set_flags(os_reason_t cur_reason, uint64_t flags)  in os_reason_set_flags()  argument
250 	if (cur_reason == OS_REASON_NULL) {  in os_reason_set_flags()
254 	lck_mtx_lock(&cur_reason->osr_lock);  in os_reason_set_flags()
255 	cur_reason->osr_flags = flags;  in os_reason_set_flags()
256 	lck_mtx_unlock(&cur_reason->osr_lock);  in os_reason_set_flags()
263 os_reason_set_description_data(os_reason_t cur_reason, uint32_t type, void *reason_data, uint32_t r…  in os_reason_set_description_data()  argument
267 	if (cur_reason == OS_REASON_NULL) {  in os_reason_set_description_data()
271 …if (0 != os_reason_alloc_buffer(cur_reason, kcdata_estimate_required_buffer_size(1, reason_data_le…  in os_reason_set_description_data()
275 	lck_mtx_lock(&cur_reason->osr_lock);  in os_reason_set_description_data()
276 …if (KERN_SUCCESS != kcdata_get_memory_addr(&cur_reason->osr_kcd_descriptor, type, reason_data_len,…  in os_reason_set_description_data()
279 …if (KERN_SUCCESS != kcdata_memcpy(&cur_reason->osr_kcd_descriptor, osr_data_addr, reason_data, rea…  in os_reason_set_description_data()
282 	lck_mtx_unlock(&cur_reason->osr_lock);  in os_reason_set_description_data()