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}