| 384 | } |
| 385 | |
| 386 | rt_base_t lwp_brk(void *addr) |
| 387 | { |
| 388 | rt_base_t ret = -1; |
| 389 | rt_varea_t varea = RT_NULL; |
| 390 | struct rt_lwp *lwp = RT_NULL; |
| 391 | size_t size = 0; |
| 392 | |
| 393 | lwp = lwp_self(); |
| 394 | |
| 395 | if ((size_t)addr == RT_NULL) |
| 396 | { |
| 397 | addr = (char *)lwp->end_heap + 1; |
| 398 | } |
| 399 | |
| 400 | if ((size_t)addr <= lwp->end_heap && (size_t)addr > USER_HEAP_VADDR) |
| 401 | { |
| 402 | ret = (size_t)addr; |
| 403 | } |
| 404 | else if ((size_t)addr <= USER_HEAP_VEND) |
| 405 | { |
| 406 | size = RT_ALIGN((size_t)addr - lwp->end_heap, ARCH_PAGE_SIZE); |
| 407 | varea = lwp_map_user_varea_ext(lwp, (void *)lwp->end_heap, size, LWP_MAP_FLAG_PREFETCH); |
| 408 | if (varea) |
| 409 | { |
| 410 | lwp->end_heap = (long)(varea->start + varea->size); |
| 411 | ret = lwp->end_heap; |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | return ret; |
| 416 | } |
| 417 | |
| 418 | rt_inline rt_mem_obj_t _get_mmap_obj(struct rt_lwp *lwp) |
| 419 | { |
no test coverage detected