diff options
| author | Christophe Lyon <christophe.lyon@st.com> | 2018-07-04 17:55:40 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbrodkorb@conet.de> | 2018-08-10 16:02:45 +0200 |
| commit | a7d538fddb21427681704e027e2fdea2bed686c7 (patch) | |
| tree | c4e52cb4ecd677ad0256da6e2c600dbbb9f030cf /libc | |
| parent | 0f4ddec32ebf5796c5ea485f8fdae2f1ad429e1d (diff) | |
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@st.com>
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/misc/internals/__uClibc_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/misc/internals/__uClibc_main.c b/libc/misc/internals/__uClibc_main.c index d8286f20b..849bca8d4 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); } |