void
__libc_static_tls_setup(void)
{
struct tls_tcb *tcb;
if (&rtld_DYNAMIC != NULL) {
#ifdef __powerpc__
/*
* Old powerpc crt0's are going to overwrite r2 so we need to
* restore it but only do so if the saved value isn't NULL (if
* it is NULL, ld.elf_so doesn't have the matching change).
*/
if ((tcb = _lwp_getprivate()) != NULL)
__lwp_settcb(tcb);
#endif
return;
}
dl_iterate_phdr(__libc_static_tls_setup_cb, NULL);
tcb = _rtld_tls_allocate();
#ifdef __HAVE___LWP_SETTCB
__lwp_settcb(tcb);
#else
_lwp_setprivate(tcb);
#endif
}
void
_rtld_tls_initial_allocation(void)
{
struct tls_tcb *tcb;
_rtld_tls_static_space = _rtld_tls_static_offset +
RTLD_STATIC_TLS_RESERVATION;
#ifndef __HAVE_TLS_VARIANT_I
_rtld_tls_static_space = roundup2(_rtld_tls_static_space,
sizeof(void *));
#endif
dbg(("_rtld_tls_static_space %zu", _rtld_tls_static_space));
tcb = _rtld_tls_allocate_locked();
#ifdef __HAVE___LWP_SETTCB
__lwp_settcb(tcb);
#ifdef __powerpc__
/*
* Save the tcb pointer so that libc can retrieve it. Older
* crt0 will obliterate r2 so there is code in libc to restore it.
*/
_lwp_setprivate(tcb);
#endif
#else
_lwp_setprivate(tcb);
#endif
}
