- while (1) {
- if (addr > end_addr) {
- if (looped) {
- return (abi_ulong)-1;
- }
- end_addr = reserved_va;
- addr = end_addr - qemu_host_page_size;
- looped = 1;
- continue;
- }
- prot = page_get_flags(addr);
- if (prot) {
- end_addr = addr;
- }
- if (end_addr - addr >= size) {
- break;
- }
- addr -= qemu_host_page_size;
- }
-
- if (start == mmap_next_start) {
- mmap_next_start = addr;
- }
- /* addr is sufficiently low to align it up */
- if (alignment != 0) {
- addr = (addr + alignment) & ~(alignment - 1);
- }
- return addr;