#include "pthread_impl.h" #include "atomic.h" #include "syscall.h" /* cheat and reuse CRTJMP macro from dynlink code */ #include "dynlink.h" static void *unmap_base; static size_t unmap_size; static char shared_stack[256]; static void do_unmap() { __syscall(SYS_munmap, unmap_base, unmap_size); __syscall(SYS_exit); } void __unmapself(void *base, size_t size) { char *stack = shared_stack + sizeof shared_stack; stack -= (uintptr_t)stack % 16; unmap_base = base; unmap_size = size; CRTJMP(do_unmap, stack); }