| 1 | typedef void (*func_ptr) (void); |
| 2 | |
| 3 | func_ptr __CTOR_LIST__[2]; |
| 4 | func_ptr __DTOR_LIST__[2]; |
| 5 | |
| 6 | /* Run all the global destructors on exit from the program. */ |
| 7 | |
| 8 | static void |
| 9 | __do_global_dtors () |
| 10 | { |
| 11 | unsigned nptrs = (unsigned long) __DTOR_LIST__[0]; |
| 12 | unsigned i; |
| 13 | |
| 14 | /* Some systems place the number of pointers |
| 15 | in the first word of the table. |
| 16 | On other systems, that word is -1. |
| 17 | In all cases, the table is null-terminated. */ |
| 18 | |
| 19 | /* If the length is not recorded, count up to the null. */ |
| 20 | if (nptrs == -1) |
| 21 | for (nptrs = 0; __DTOR_LIST__[nptrs + 1] != 0; nptrs++); |
| 22 | |
| 23 | /* GNU LD format. */ |
| 24 | for (i = nptrs; i >= 1; i--) |
| 25 | __DTOR_LIST__[i] (); |
| 26 | |
| 27 | } |
| 28 | |
| 29 | static void |
| 30 | __do_global_ctors () |
| 31 | { |
| 32 | func_ptr *p; |
| 33 | |
| 34 | for (p = __CTOR_LIST__ + 1; *p; ) |
| 35 | (*p++)(); |
| 36 | atexit (__do_global_dtors); |
| 37 | } |
| 38 | |
| 39 | __init() |
| 40 | { |
| 41 | static int initialized = 0; |
| 42 | if (! initialized) { |
| 43 | initialized = 1; |
| 44 | __do_global_ctors (); |
| 45 | } |
| 46 | |
| 47 | } |