[uclibc-ng-devel] [PATCH 20/32] [FDPIC] nptl: Do not use madvise

start_thread() uses it, but it is not supported on MMU-less systems. * libpthread/nptl/pthread_create.c (start_thread): Call madvise only if __ARCH_USE_MMU__ is defined. Signed-off-by: Mickaël Guêné &lt;mickael.guene(a)st.com&gt; Signed-off-by: Christophe Lyon &lt;christophe.lyon(a)st.com&gt; diff --git a/libpthread/nptl/pthread_create.c b/libpthread/nptl/pthread_create.c index 3064b40..5a7957d 100644 --- a/libpthread/nptl/pthread_create.c +++ b/libpthread/nptl/pthread_create.c @@ -373,8 +373,12 @@ start_thread (void *arg) size_t freesize = ((char *) pd->stackblock - sp) & ~pagesize_m1; #endif assert (freesize < pd->stackblock_size); + + /* madvise is not supported on MMU-less systems. */ +#ifdef __ARCH_USE_MMU__ if (freesize > PTHREAD_STACK_MIN) madvise (pd->stackblock, freesize - PTHREAD_STACK_MIN, MADV_DONTNEED); +#endif /* If the thread is detached free the TCB. */ if (IS_DETACHED (pd)) -- 2.6.3