diff options
| author | Christophe Lyon <christophe.lyon@st.com> | 2018-07-04 17:55:32 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbrodkorb@conet.de> | 2018-08-10 16:02:45 +0200 |
| commit | eae96c1e2b02af0554bbae189af2c8091cb581bf (patch) | |
| tree | 392822d624567e125fabac3074ab8b7317d3846c /libpthread/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c | |
| parent | 5b9a9801a4867af70c9ed55379b3eaa3dba59ef3 (diff) | |
nptl: Disable fork and atfork on MMU-less systems.
They do not work on MMU-less systems.
For atfork, implement a hidden function that always returns EPERM.
* libpthread/nptl/sysdeps/unix/sysv/linux/fork.c: Disable if
__ARCH_USE_MMU__ is not defined.
* libpthread/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c
(__libc_pthread_init): Handle __ARCH_USE_MMU__.
* libpthread/nptl/sysdeps/unix/sysv/linux/register-atfork.c: Likewise.
* libpthread/nptl/sysdeps/unix/sysv/linux/unregister-atfork.c: Likewise.
Signed-off-by: Mickaël Guêné <mickael.guene@st.com>
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c')
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c b/libpthread/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c index 0df9951a8..0cdbcfece 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c @@ -40,10 +40,14 @@ __libc_pthread_init ( void (*reclaim) (void)) { /* Remember the pointer to the generation counter in libpthread. */ +#ifdef __ARCH_USE_MMU__ __fork_generation_pointer = ptr; +#endif /* Called by a child after fork. */ +#ifdef __ARCH_USE_MMU__ __register_atfork (NULL, NULL, reclaim, NULL); +#endif #ifndef TLS_MULTIPLE_THREADS_IN_TCB return &__libc_multiple_threads; |