1#include "pthread_impl.h" 2#include "atomic.h" 3#include "syscall.h" 4/* cheat and reuse CRTJMP macro from dynlink code */ 5#include "dynlink.h" 6 7static void *unmap_base; 8static size_t unmap_size; 9static char shared_stack[256]; 10 11static void do_unmap() 12{ 13 __syscall(SYS_munmap, unmap_base, unmap_size); 14 __syscall(SYS_exit); 15} 16 17void __unmapself(void *base, size_t size) 18{ 19 char *stack = shared_stack + sizeof shared_stack; 20 stack -= (uintptr_t)stack % 16; 21 unmap_base = base; 22 unmap_size = size; 23 CRTJMP(do_unmap, stack); 24} 25