[uclibc-ng-devel] [PATCH 27/32] nptl threads: Fix bug in using a weak variable.

In case __nptl_nthreads is not defined in the final binary then avoid dereferencing the address since it's null. Anyway this means there is no other thread and so we must exit. * libc/misc/internals/__uClibc_main.c (__uClibc_main): Handle case where &__nptl_nthreads is null. Signed-off-by: Mickaël Guêné <mickael.guene(a)st.com> Signed-off-by: Christophe Lyon <christophe.lyon(a)st.com> diff --git a/libc/misc/internals/__uClibc_main.c b/libc/misc/internals/__uClibc_main.c index d8286f2..849bca8 100644 --- a/libc/misc/internals/__uClibc_main.c +++ b/libc/misc/internals/__uClibc_main.c @@ -544,7 +544,7 @@ void __uClibc_main(int (*main)(int, char **, char **), int argc, result = 0; unsigned int *const ptr = &__nptl_nthreads; - if (! atomic_decrement_and_test (ptr)) + if (ptr && ! atomic_decrement_and_test (ptr)) /* Not much left to do but to exit the thread, not the process. */ __exit_thread_inline (0); } -- 2.6.3