X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=src%2Fexit%2Fexit.c;h=163d8f1b22a996d55230bcbf86d5c2890404684c;hb=5cc187215681c2fc1563ad5136c389249aa3f70e;hp=03c46ca541e6479f44bcee56fd828f347db615df;hpb=ad5a332c750550adbd45f474e5936cae65b4fd5e;p=musl diff --git a/src/exit/exit.c b/src/exit/exit.c index 03c46ca5..163d8f1b 100644 --- a/src/exit/exit.c +++ b/src/exit/exit.c @@ -1,30 +1,34 @@ #include -#include -#include +#include #include "libc.h" -#include "atomic.h" -#include "syscall.h" static void dummy() { } -/* __towrite.c and atexit.c override these */ +/* atexit.c and __stdio_exit.c override these. the latter is linked + * as a consequence of linking either __toread.c or __towrite.c. */ weak_alias(dummy, __funcs_on_exit); -weak_alias(dummy, __fflush_on_exit); +weak_alias(dummy, __stdio_exit); -void exit(int code) +#ifndef SHARED +weak_alias(dummy, _fini); +extern void (*const __fini_array_start)() __attribute__((weak)); +extern void (*const __fini_array_end)() __attribute__((weak)); +#endif + +_Noreturn void exit(int code) { - static int lock; + __funcs_on_exit(); - /* If more than one thread calls exit, hang until _Exit ends it all */ - while (a_swap(&lock, 1)) __syscall(SYS_pause); +#ifndef SHARED + uintptr_t a = (uintptr_t)&__fini_array_end; + for (; a>(uintptr_t)&__fini_array_start; a-=sizeof(void(*)())) + (*(void (**)())(a-sizeof(void(*)())))(); + _fini(); +#endif - __funcs_on_exit(); - if (libc.fini) libc.fini(); - if (libc.ldso_fini) libc.ldso_fini(); - __fflush_on_exit(); + __stdio_exit(); _Exit(code); - for(;;); }