| #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); | |
| } |