linuxthreads: use __UCLIBC_HAS_TLS__ consistently

replace USE_TLS, HAVE___THREAD and USE___THREAD with __UCLIBC_HAS_TLS__

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

23 files changed, 91 insertions, 96 deletions

diff --git a/libpthread/linuxthreads/attr.c b/libpthread/linuxthreads/attr.c
index 52e115c8e..a621c2dcc 100644
--- a/libpthread/linuxthreads/attr.c
+++ b/libpthread/linuxthreads/attr.c
@@ -361,7 +361,7 @@ int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr)
   attr->__scope = PTHREAD_SCOPE_SYSTEM;
 
 #ifdef _STACK_GROWS_DOWN
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
   attr->__stacksize = descr->p_stackaddr - (char *)descr->p_guardaddr
 		      - descr->p_guardsize;
 # else
@@ -369,7 +369,7 @@ int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr)
 		      - descr->p_guardsize;
 # endif
 #else
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
   attr->__stacksize = (char *)descr->p_guardaddr - descr->p_stackaddr;
 # else
   attr->__stacksize = (char *)descr->p_guardaddr - (char *)descr;
@@ -385,7 +385,7 @@ int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr)
      otherwise the range of the stack area cannot be computed.  */
   attr->__stacksize += attr->__guardsize;
 #endif
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   attr->__stackaddr = descr->p_stackaddr;
 #else
 # ifndef _STACK_GROWS_UP
@@ -395,7 +395,7 @@ int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr)
 # endif
 #endif
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   if (attr->__stackaddr == NULL)
 #else
   if (descr == &__pthread_initial_thread)
diff --git a/libpthread/linuxthreads/descr.h b/libpthread/linuxthreads/descr.h
index 47a9acd9b..1c816b225 100644
--- a/libpthread/linuxthreads/descr.h
+++ b/libpthread/linuxthreads/descr.h
@@ -23,7 +23,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 #include <hp-timing.h>
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 #include <tls.h>
 #endif
 #include "uClibc-glue.h"
@@ -112,7 +112,7 @@ union dtv;
 
 struct _pthread_descr_struct
 {
-#if !defined USE_TLS || !TLS_DTV_AT_TP || INCLUDE_TLS_PADDING
+#if !defined __UCLIBC_HAS_TLS__ || !TLS_DTV_AT_TP || INCLUDE_TLS_PADDING
   /* This overlaps tcbhead_t (see tls.h), as used for TLS without threads.  */
   union
   {
@@ -157,7 +157,7 @@ struct _pthread_descr_struct
   char p_sigwaiting;            /* true if a sigwait() is in progress */
   struct pthread_start_args p_start_args; /* arguments for thread creation */
   void ** p_specific[PTHREAD_KEY_1STLEVEL_SIZE]; /* thread-specific data */
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
   void * p_libc_specific[_LIBC_TSD_KEY_N]; /* thread-specific data for libc */
   int * p_errnop;               /* pointer to used errno variable */
   int p_errno;                  /* error returned by last system call */
@@ -185,7 +185,7 @@ struct _pthread_descr_struct
 #if HP_TIMING_AVAIL
   hp_timing_t p_cpuclock_offset; /* Initial CPU clock for thread.  */
 #endif
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   char *p_stackaddr;		/* Stack address.  */
 #endif
   size_t p_alloca_cutoff;	/* Maximum size which should be allocated
diff --git a/libpthread/linuxthreads/errno.c b/libpthread/linuxthreads/errno.c
index 03c23f867..b8d9eb343 100644
--- a/libpthread/linuxthreads/errno.c
+++ b/libpthread/linuxthreads/errno.c
@@ -20,7 +20,7 @@
 #include "pthread.h"
 #include "internals.h"
 
-#if !USE_TLS || !HAVE___THREAD
+#ifndef __UCLIBC_HAS_TLS__
 /* The definition in libc is sufficient if we use TLS.  */
 int *
 __errno_location (void)
diff --git a/libpthread/linuxthreads/libc_pthread_init.c b/libpthread/linuxthreads/libc_pthread_init.c
index afe995ae8..c59f40b85 100644
--- a/libpthread/linuxthreads/libc_pthread_init.c
+++ b/libpthread/linuxthreads/libc_pthread_init.c
@@ -20,7 +20,7 @@
 #include <locale.h>
 #include <stdlib.h>
 #include <string.h>
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 #include <tls.h>
 #endif
 #include "internals.h"
@@ -42,7 +42,7 @@ __libc_pthread_init (functions)
 	  sizeof (__libc_pthread_functions));
 #endif
 
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
   /* Initialize thread-locale current locale to point to the global one.
      With __thread support, the variable's initializer takes care of this.  */
   __uselocale (LC_GLOBAL_LOCALE);
diff --git a/libpthread/linuxthreads/manager.c b/libpthread/linuxthreads/manager.c
index b1482f162..3c5bee876 100644
--- a/libpthread/linuxthreads/manager.c
+++ b/libpthread/linuxthreads/manager.c
@@ -126,7 +126,7 @@ __pthread_manager(void *arg)
 #ifdef INIT_THREAD_SELF
   INIT_THREAD_SELF(self, 1);
 #endif
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
   /* Set the error variable.  */
   self->p_errnop = &self->p_errno;
   self->p_h_errnop = &self->p_h_errno;
@@ -289,7 +289,7 @@ pthread_start_thread(void *arg)
       __sched_setscheduler(THREAD_GETMEM(self, p_pid),
                            SCHED_OTHER, &default_params);
     }
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
   /* Initialize thread-locale current locale to point to the global one.
      With __thread support, the variable's initializer takes care of this.  */
   __uselocale (LC_GLOBAL_LOCALE);
@@ -333,7 +333,7 @@ pthread_start_thread_event(void *arg)
   pthread_start_thread (arg);
 }
 
-#if defined USE_TLS && !FLOATING_STACKS
+#if defined __UCLIBC_HAS_TLS__ && !FLOATING_STACKS
 # error "TLS can only work with floating stacks"
 #endif
 
@@ -351,7 +351,7 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
   char * guardaddr;
   size_t stacksize, guardsize;
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   /* TLS cannot work with fixed thread descriptor addresses.  */
   assert (default_new_thread == NULL);
 #endif
@@ -360,7 +360,7 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
     {
 #ifdef _STACK_GROWS_UP
       /* The user provided a stack. */
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
       /* This value is not needed.  */
       new_thread = (pthread_descr) attr->__stackaddr;
       new_thread_bottom = (char *) new_thread;
@@ -381,7 +381,7 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
 	 addresses, stackaddr would be the lowest address in the stack
 	 segment, so that it is consistently close to the initial sp
 	 value. */
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
       new_thread = (pthread_descr) attr->__stackaddr;
 # else
       new_thread =
@@ -394,7 +394,7 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
 #ifndef THREAD_SELF
       __pthread_nonstandard_stacks = 1;
 #endif
-#ifndef USE_TLS
+#ifndef __UCLIBC_HAS_TLS__
       /* Clear the thread data structure.  */
       memset (new_thread, '\0', sizeof (*new_thread));
 #endif
@@ -438,7 +438,7 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
 	mprotect (guardaddr, guardsize, PROT_NONE);
 
       new_thread_bottom = (char *) map_addr;
-#  ifdef USE_TLS
+#  ifdef __UCLIBC_HAS_TLS__
       new_thread = ((pthread_descr) (new_thread_bottom + stacksize
 				     + guardsize));
 #  else
@@ -451,7 +451,7 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
 	mprotect (guardaddr, guardsize, PROT_NONE);
 
       new_thread_bottom = (char *) map_addr + guardsize;
-#  ifdef USE_TLS
+#  ifdef __UCLIBC_HAS_TLS__
       new_thread = ((pthread_descr) (new_thread_bottom + stacksize));
 #  else
       new_thread = ((pthread_descr) (new_thread_bottom + stacksize)) - 1;
@@ -462,7 +462,7 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
 	mprotect (guardaddr, guardsize, PROT_NONE);
 
       new_thread = (pthread_descr) map_addr;
-#  ifdef USE_TLS
+#  ifdef __UCLIBC_HAS_TLS__
       new_thread_bottom = (char *) new_thread;
 #  else
       new_thread_bottom = (char *) (new_thread + 1);
@@ -597,7 +597,7 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
   int pagesize = __getpagesize();
   int saved_errno = 0;
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   new_thread = _dl_allocate_tls (NULL);
   if (new_thread == NULL)
     return EAGAIN;
@@ -621,7 +621,7 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
     {
       if (sseg >= PTHREAD_THREADS_MAX)
 	{
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 # if defined(TLS_DTV_AT_TP)
 	  new_thread = (pthread_descr) ((char *) new_thread + TLS_PRE_TCB_SIZE);
 # endif
@@ -635,7 +635,7 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
 				 pagesize, &stack_addr, &new_thread_bottom,
                                  &guardaddr, &guardsize, &stksize) == 0)
 	{
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 	  new_thread->p_stackaddr = stack_addr;
 #else
 	  new_thread = (pthread_descr) stack_addr;
@@ -657,18 +657,18 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
   new_thread_id = sseg + pthread_threads_counter;
   /* Initialize the thread descriptor.  Elements which have to be
      initialized to zero already have this value.  */
-#if !defined USE_TLS || !TLS_DTV_AT_TP
+#if !defined __UCLIBC_HAS_TLS__ || !TLS_DTV_AT_TP
   new_thread->p_header.data.tcb = new_thread;
   new_thread->p_header.data.self = new_thread;
 #endif
-#if TLS_MULTIPLE_THREADS_IN_TCB || !defined USE_TLS || !TLS_DTV_AT_TP
+#if TLS_MULTIPLE_THREADS_IN_TCB || !defined __UCLIBC_HAS_TLS__ || !TLS_DTV_AT_TP
   new_thread->p_multiple_threads = 1;
 #endif
   new_thread->p_tid = new_thread_id;
   new_thread->p_lock = &(__pthread_handles[sseg].h_lock);
   new_thread->p_cancelstate = PTHREAD_CANCEL_ENABLE;
   new_thread->p_canceltype = PTHREAD_CANCEL_DEFERRED;
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
   new_thread->p_errnop = &new_thread->p_errno;
   new_thread->p_h_errnop = &new_thread->p_h_errno;
   new_thread->p_resp = &new_thread->p_res;
@@ -807,7 +807,7 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
 	munmap((caddr_t)new_thread_bottom,
 	       2 * stacksize + new_thread->p_guardsize);
 #elif defined _STACK_GROWS_UP
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
 	size_t stacksize = guardaddr - stack_addr;
 	munmap(stack_addr, stacksize + guardsize);
 # else
@@ -815,7 +815,7 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
 	munmap(new_thread, stacksize + guardsize);
 # endif
 #else
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
 	size_t stacksize = stack_addr - new_thread_bottom;
 # else
 	size_t stacksize = (char *)(new_thread+1) - new_thread_bottom;
@@ -823,7 +823,7 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
 	munmap(new_thread_bottom - guardsize, guardsize + stacksize);
 #endif
       }
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 # if defined(TLS_DTV_AT_TP)
     new_thread = (pthread_descr) ((char *) new_thread + TLS_PRE_TCB_SIZE);
 # endif
@@ -890,7 +890,7 @@ static void pthread_free(pthread_descr th)
       /* Free the stack and thread descriptor area */
       char *guardaddr = th->p_guardaddr;
 #ifdef _STACK_GROWS_UP
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
       size_t stacksize = guardaddr - th->p_stackaddr;
       guardaddr = th->p_stackaddr;
 # else
@@ -900,7 +900,7 @@ static void pthread_free(pthread_descr th)
 #else
       /* Guardaddr is always set, even if guardsize is 0.  This allows
 	 us to compute everything else.  */
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
       size_t stacksize = th->p_stackaddr - guardaddr - guardsize;
 # else
       size_t stacksize = (char *)(th+1) - guardaddr - guardsize;
@@ -916,7 +916,7 @@ static void pthread_free(pthread_descr th)
 
     }
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 # if defined(TLS_DTV_AT_TP)
   th = (pthread_descr) ((char *) th + TLS_PRE_TCB_SIZE);
 # endif
diff --git a/libpthread/linuxthreads/pthread.c b/libpthread/linuxthreads/pthread.c
index 941bb6646..043146bfa 100644
--- a/libpthread/linuxthreads/pthread.c
+++ b/libpthread/linuxthreads/pthread.c
@@ -37,7 +37,7 @@
 # error "This must not happen"
 #endif
 
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
 /* These variables are used by the setup code.  */
 extern int _errno;
 extern int _h_errno;
@@ -50,7 +50,7 @@ extern struct __res_state *__resp;
 # endif
 #endif
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 
 /* We need only a few variables.  */
 #define manager_thread __pthread_manager_threadp
@@ -67,7 +67,7 @@ struct _pthread_descr_struct __pthread_initial_thread = {
   .p_tid = PTHREAD_THREADS_MAX,
   .p_lock = &__pthread_handles[0].h_lock,
   .p_start_args = PTHREAD_START_ARGS_INITIALIZER(NULL),
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
   .p_errnop = &_errno,
   .p_h_errnop = &_h_errno,
 #endif
@@ -86,7 +86,7 @@ struct _pthread_descr_struct __pthread_manager_thread = {
   .p_header.data.multiple_threads = 1,
   .p_lock = &__pthread_handles[1].h_lock,
   .p_start_args = PTHREAD_START_ARGS_INITIALIZER(__pthread_manager),
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
   .p_errnop = &__pthread_manager_thread.p_errno,
 #endif
   .p_nr = 1,
@@ -98,7 +98,7 @@ struct _pthread_descr_struct __pthread_manager_thread = {
 /* Pointer to the main thread (the father of the thread manager thread) */
 /* Originally, this is the initial thread, but this changes after fork() */
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 pthread_descr __pthread_main_thread;
 #else
 pthread_descr __pthread_main_thread = &__pthread_initial_thread;
@@ -224,13 +224,13 @@ extern void *__dso_handle __attribute__ ((weak));
 #endif
 
 
-#if defined USE_TLS && !defined SHARED
+#if defined __UCLIBC_HAS_TLS__ && !defined SHARED
 extern void __libc_setup_tls (size_t tcbsize, size_t tcbalign);
 #endif
 
 struct pthread_functions __pthread_functions =
   {
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
     .ptr_pthread_internal_tsd_set = __pthread_internal_tsd_set,
     .ptr_pthread_internal_tsd_get = __pthread_internal_tsd_get,
     .ptr_pthread_internal_tsd_address = __pthread_internal_tsd_address,
@@ -292,7 +292,7 @@ static int *__libc_multiple_threads_ptr;
 void
 __pthread_initialize_minimal(void)
 {
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   pthread_descr self;
 
   /* First of all init __pthread_handles[0] and [1] if needed.  */
@@ -304,7 +304,7 @@ __pthread_initialize_minimal(void)
   /* Unlike in the dynamically linked case the dynamic linker has not
      taken care of initializing the TLS data structures.  */
   __libc_setup_tls (TLS_TCB_SIZE, TLS_TCB_ALIGN);
-# elif !USE___THREAD
+# elif !defined __UCLIBC_HAS_TLS__
   if (__builtin_expect (GL(dl_tls_dtv_slotinfo_list) == NULL, 0))
     {
       tcbhead_t *tcbp;
@@ -360,7 +360,7 @@ cannot allocate TLS data structures for initial thread\n";
   self->p_nextlive = self->p_prevlive = self;
   self->p_tid = PTHREAD_THREADS_MAX;
   self->p_lock = &__pthread_handles[0].h_lock;
-# ifndef HAVE___THREAD
+# ifndef __UCLIBC_HAS_TLS__
   self->p_errnop = &_errno;
   self->p_h_errnop = &_h_errno;
 # endif
@@ -377,7 +377,7 @@ cannot allocate TLS data structures for initial thread\n";
   /* And fill in the pointer the the thread __pthread_handles array.  */
   __pthread_handles[0].h_descr = self;
 
-#else  /* USE_TLS */
+#else  /* __UCLIBC_HAS_TLS__ */
 
   /* First of all init __pthread_handles[0] and [1].  */
 # if __LT_SPINLOCK_INIT != 0
@@ -395,7 +395,7 @@ cannot allocate TLS data structures for initial thread\n";
 #endif
 
 #if HP_TIMING_AVAIL
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
   self->p_cpuclock_offset = GL(dl_cpuclock_offset);
 # else
   __pthread_initial_thread.p_cpuclock_offset = GL(dl_cpuclock_offset);
@@ -439,7 +439,7 @@ __pthread_init_max_stacksize(void)
   __pthread_max_stacksize = max_stack;
   if (max_stack / 4 < __MAX_ALLOCA_CUTOFF)
     {
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
       pthread_descr self = THREAD_SELF;
       self->p_alloca_cutoff = max_stack / 4;
 #else
@@ -448,10 +448,8 @@ __pthread_init_max_stacksize(void)
     }
 }
 
-/* psm: we do not have any ld.so support yet
- *	 remove the USE_TLS guard if nptl is added */
-#if defined SHARED && defined USE_TLS
-# if USE___THREAD
+#if defined SHARED && defined __UCLIBC_HAS_TLS__
+# ifdef __UCLIBC_HAS_TLS__
 /* When using __thread for this, we do it in libc so as not
    to give libpthread its own TLS segment just for this.  */
 extern void **__libc_dl_error_tsd (void) __attribute__ ((const));
@@ -464,7 +462,7 @@ __libc_dl_error_tsd (void)
 # endif
 #endif
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 static __inline__ void __attribute__((always_inline))
 init_one_static_tls (pthread_descr descr, struct link_map *map)
 {
@@ -533,10 +531,10 @@ static void pthread_initialize(void)
     (char *)(((long)CURRENT_STACK_FRAME - 2 * STACK_SIZE) & ~(STACK_SIZE - 1));
 # endif
 #endif
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   /* Update the descriptor for the initial thread. */
   THREAD_SETMEM (((pthread_descr) NULL), p_pid, __getpid());
-# if !defined HAVE___THREAD && defined __UCLIBC_HAS_RESOLVER_SUPPORT__
+# if defined __UCLIBC_HAS_RESOLVER_SUPPORT__
   /* Likewise for the resolver state _res.  */
   THREAD_SETMEM (((pthread_descr) NULL), p_resp, __resp);
 # endif
@@ -587,9 +585,7 @@ static void pthread_initialize(void)
   /* How many processors.  */
   __pthread_smp_kernel = is_smp_system ();
 
-/* psm: we do not have any ld.so support yet
- *	 remove the USE_TLS guard if nptl is added */
-#if defined SHARED && defined USE_TLS
+#if defined SHARED && defined __UCLIBC_HAS_TLS__
   /* Transfer the old value from the dynamic linker's internal location.  */
   *__libc_dl_error_tsd () = *(*GL(dl_error_catch_tsd)) ();
   GL(dl_error_catch_tsd) = &__libc_dl_error_tsd;
@@ -604,7 +600,7 @@ static void pthread_initialize(void)
     __pthread_mutex_lock (&GL(dl_load_lock).mutex);
 #endif
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   GL(dl_init_static_tls) = &__pthread_init_static_tls;
 #endif
 
@@ -632,12 +628,12 @@ int __pthread_initialize_manager(void)
   struct pthread_request request;
   int report_events;
   pthread_descr mgr;
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   tcbhead_t *tcbp;
 #endif
 
   __pthread_multiple_threads = 1;
-#if TLS_MULTIPLE_THREADS_IN_TCB || !defined USE_TLS || !TLS_DTV_AT_TP
+#if TLS_MULTIPLE_THREADS_IN_TCB || !defined __UCLIBC_HAS_TLS__ || !TLS_DTV_AT_TP
   __pthread_main_thread->p_multiple_threads = 1;
 #endif
   *__libc_multiple_threads_ptr = 1;
@@ -664,7 +660,7 @@ int __pthread_initialize_manager(void)
     return -1;
   }
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   /* Allocate memory for the thread descriptor and the dtv.  */
   tcbp = _dl_allocate_tls (NULL);
   if (tcbp == NULL) {
@@ -684,7 +680,7 @@ int __pthread_initialize_manager(void)
   __pthread_handles[1].h_descr = manager_thread = mgr;
 
   /* Initialize the descriptor.  */
-#if !defined USE_TLS || !TLS_DTV_AT_TP
+#if !defined __UCLIBC_HAS_TLS__ || !TLS_DTV_AT_TP
   mgr->p_header.data.tcb = tcbp;
   mgr->p_header.data.self = mgr;
   mgr->p_header.data.multiple_threads = 1;
@@ -692,7 +688,7 @@ int __pthread_initialize_manager(void)
   mgr->p_multiple_threads = 1;
 #endif
   mgr->p_lock = &__pthread_handles[1].h_lock;
-# ifndef HAVE___THREAD
+# ifndef __UCLIBC_HAS_TLS__
   mgr->p_errnop = &mgr->p_errno;
 # endif
   mgr->p_start_args = (struct pthread_start_args) PTHREAD_START_ARGS_INITIALIZER(__pthread_manager);
@@ -710,7 +706,7 @@ int __pthread_initialize_manager(void)
 
   /* Start the thread manager */
   pid = 0;
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   if (__linuxthreads_initial_report_events != 0)
     THREAD_SETMEM (((pthread_descr) NULL), p_report_events,
 		   __linuxthreads_initial_report_events);
@@ -729,7 +725,7 @@ int __pthread_initialize_manager(void)
       uint32_t mask = __td_eventmask (TD_CREATE);
       uint32_t event_bits;
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
       event_bits = THREAD_GETMEM_NC (((pthread_descr) NULL),
 				     p_eventbuf.eventmask.event_bits[idx]);
 #else
@@ -795,7 +791,7 @@ int __pthread_initialize_manager(void)
 #endif
     }
   if (__builtin_expect (pid, 0) == -1) {
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
     _dl_deallocate_tls (tcbp, true);
 #endif
     free(__pthread_manager_thread_bos);
@@ -897,7 +893,7 @@ pthread_descr __pthread_self_stack(void)
   if (sp >= __pthread_manager_thread_bos && sp < __pthread_manager_thread_tos)
     return manager_thread;
   h = __pthread_handles + 2;
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
 #  ifdef _STACK_GROWS_UP
   while (h->h_descr == NULL
 	 || ! (sp >= h->h_descr->p_stackaddr && sp < h->h_descr->p_guardaddr))
@@ -991,7 +987,7 @@ static void pthread_onexit_process(int retcode, void *arg)
        children, so that timings for main thread account for all threads. */
     if (self == __pthread_main_thread)
       {
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 	waitpid(manager_thread->p_pid, NULL, __WCLONE);
 #else
 	waitpid(__pthread_manager_thread.p_pid, NULL, __WCLONE);
@@ -999,7 +995,7 @@ static void pthread_onexit_process(int retcode, void *arg)
 	/* Since all threads have been asynchronously terminated
            (possibly holding locks), free cannot be used any more.
            For mtrace, we'd like to print something though.  */
-	/* #ifdef USE_TLS
+	/* #ifdef __UCLIBC_HAS_TLS__
 	   tcbhead_t *tcbp = (tcbhead_t *) manager_thread;
 	   # if defined(TLS_DTV_AT_TP)
 	   tcbp = (tcbhead_t) ((char *) tcbp + TLS_PRE_TCB_SIZE);
@@ -1057,7 +1053,7 @@ static void pthread_handle_sigcancel(int sig)
     /* Main thread should accumulate times for thread manager and its
        children, so that timings for main thread account for all threads. */
     if (self == __pthread_main_thread) {
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
       waitpid(manager_thread->p_pid, NULL, __WCLONE);
 #else
       waitpid(__pthread_manager_thread.p_pid, NULL, __WCLONE);
@@ -1118,7 +1114,7 @@ void __pthread_reset_main_thread(void)
   __pthread_main_thread = self;
   THREAD_SETMEM(self, p_nextlive, self);
   THREAD_SETMEM(self, p_prevlive, self);
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
   /* Now this thread modifies the global variables.  */
   THREAD_SETMEM(self, p_errnop, &_errno);
   THREAD_SETMEM(self, p_h_errnop, &_h_errno);
diff --git a/libpthread/linuxthreads/specific.c b/libpthread/linuxthreads/specific.c
index 764bf1e95..4a6dad308 100644
--- a/libpthread/linuxthreads/specific.c
+++ b/libpthread/linuxthreads/specific.c
@@ -212,7 +212,7 @@ void __pthread_destroy_specifics()
   __pthread_unlock(THREAD_GETMEM(self, p_lock));
 }
 
-#if !(USE_TLS && HAVE___THREAD)
+#ifndef __UCLIBC_HAS_TLS__
 
 /* Thread-specific data for libc. */
 
diff --git a/libpthread/linuxthreads/sysdeps/i386/useldt.h b/libpthread/linuxthreads/sysdeps/i386/useldt.h
index fa9a2a528..c72a7c8f7 100644
--- a/libpthread/linuxthreads/sysdeps/i386/useldt.h
+++ b/libpthread/linuxthreads/sysdeps/i386/useldt.h
@@ -87,7 +87,7 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
    because we inherited the value set up in the main thread by TLS setup.
    We need to extract that value and set up the same segment in this
    thread.  */
-#if defined (USE_TLS) && USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 # define DO_SET_THREAD_AREA_REUSE(nr)	1
 #else
 /* Without TLS, we do the initialization of the main thread, where NR == 0.  */
diff --git a/libpthread/linuxthreads/sysdeps/ia64/tcb-offsets.sym b/libpthread/linuxthreads/sysdeps/ia64/tcb-offsets.sym
index f7793f766..1000ad0a9 100644
--- a/libpthread/linuxthreads/sysdeps/ia64/tcb-offsets.sym
+++ b/libpthread/linuxthreads/sysdeps/ia64/tcb-offsets.sym
@@ -2,7 +2,7 @@
 #include <tls.h>
 
 --
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 MULTIPLE_THREADS_OFFSET offsetof (struct _pthread_descr_struct, p_multiple_threads) - sizeof (struct _pthread_descr_struct)
 #else
 MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads)
diff --git a/libpthread/linuxthreads/sysdeps/powerpc/tcb-offsets.sym b/libpthread/linuxthreads/sysdeps/powerpc/tcb-offsets.sym
index 7c5cca01e..7940cf620 100644
--- a/libpthread/linuxthreads/sysdeps/powerpc/tcb-offsets.sym
+++ b/libpthread/linuxthreads/sysdeps/powerpc/tcb-offsets.sym
@@ -3,7 +3,7 @@
 
 -- This line separates the #include lines from conditionals.
 
-# ifdef USE_TLS
+# ifdef __UCLIBC_HAS_TLS__
 
 -- Abuse tls.h macros to derive offsets relative to the thread register.
 #  undef __thread_register
diff --git a/libpthread/linuxthreads/sysdeps/pthread/bits/libc-tsd.h b/libpthread/linuxthreads/sysdeps/pthread/bits/libc-tsd.h
index fa6eb4be2..6155280b1 100644
--- a/libpthread/linuxthreads/sysdeps/pthread/bits/libc-tsd.h
+++ b/libpthread/linuxthreads/sysdeps/pthread/bits/libc-tsd.h
@@ -21,10 +21,9 @@
 #define _BITS_LIBC_TSD_H 1
 
 #include <linuxthreads/descr.h>
+#ifdef __UCLIBC_HAS_TLS__
 #include <tls.h>
 
-#if USE_TLS && HAVE___THREAD
-
 /* When __thread works, the generic definition is what we want.  */
 # include <sysdeps/generic/bits/libc-tsd.h>
 
diff --git a/libpthread/linuxthreads/sysdeps/pthread/errno-loc.c b/libpthread/linuxthreads/sysdeps/pthread/errno-loc.c
index c3b3087e4..69352ea32 100644
--- a/libpthread/linuxthreads/sysdeps/pthread/errno-loc.c
+++ b/libpthread/linuxthreads/sysdeps/pthread/errno-loc.c
@@ -22,18 +22,18 @@
 #include <linuxthreads/internals.h>
 #include <sysdep-cancel.h>
 
-#if ! USE___THREAD && !RTLD_PRIVATE_ERRNO
+#if !defined __UCLIBC_HAS_TLS__ && !RTLD_PRIVATE_ERRNO
 #undef errno
 extern int errno;
 #endif
 
 int *
-#if ! USE___THREAD
+#ifndef __UCLIBC_HAS_TLS__
 weak_const_function
 #endif
 __errno_location (void)
 {
-#if ! USE___THREAD && !defined NOT_IN_libc
+#if !defined __UCLIBC_HAS_TLS__ && !defined NOT_IN_libc
   if (! SINGLE_THREAD_P)
     {
       pthread_descr self = thread_self();
diff --git a/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c b/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c
index fbc557616..5a2657639 100644
--- a/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c
+++ b/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c
@@ -21,7 +21,7 @@
 #include <linuxthreads/internals.h>
 #include <sysdep-cancel.h>
 
-#if ! USE___THREAD
+#ifndef __UCLIBC_HAS_TLS__
 # undef h_errno
 extern int h_errno;
 #endif
@@ -31,7 +31,7 @@ int *
 weak_const_function
 __h_errno_location (void)
 {
-#if ! USE___THREAD
+#ifndef __UCLIBC_HAS_TLS__
   if (! SINGLE_THREAD_P)
     {
       pthread_descr self = thread_self();
diff --git a/libpthread/linuxthreads/sysdeps/pthread/res-state.c b/libpthread/linuxthreads/sysdeps/pthread/res-state.c
index 016e20b4e..6eb77637b 100644
--- a/libpthread/linuxthreads/sysdeps/pthread/res-state.c
+++ b/libpthread/linuxthreads/sysdeps/pthread/res-state.c
@@ -21,19 +21,19 @@
 #include <linuxthreads/internals.h>
 #include <sysdep-cancel.h>
 
-#if ! USE___THREAD
+#ifndef __UCLIBC_HAS_TLS__
 # undef _res
 extern struct __res_state _res;
 #endif
 
 /* When threaded, _res may be a per-thread variable.  */
 struct __res_state *
-#if ! USE___THREAD
+#ifndef __UCLIBC_HAS_TLS__
 weak_const_function
 #endif
 __res_state (void)
 {
-#if ! USE___THREAD
+#ifndef __UCLIBC_HAS_TLS__
   if (! SINGLE_THREAD_P)
     {
       pthread_descr self = thread_self();
diff --git a/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h b/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h
index d52d600ad..685d688ae 100644
--- a/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h
+++ b/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h
@@ -58,7 +58,7 @@ testandset (int *spinlock)
 #define CURRENT_STACK_FRAME  stack_pointer
 register char * stack_pointer __asm__ ("15");
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 /* Return the thread descriptor for the current thread.  */
 # define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ())
 
diff --git a/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h b/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h
index 187e1f872..366482c0f 100644
--- a/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h
+++ b/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h
@@ -58,7 +58,7 @@ testandset (int *spinlock)
 #define CURRENT_STACK_FRAME  stack_pointer
 register char * stack_pointer __asm__ ("15");
 
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 /* Return the thread descriptor for the current thread.  */
 # define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ())
 
diff --git a/libpthread/linuxthreads/sysdeps/sh/tcb-offsets.sym b/libpthread/linuxthreads/sysdeps/sh/tcb-offsets.sym
index 328eb0573..6324a016c 100644
--- a/libpthread/linuxthreads/sysdeps/sh/tcb-offsets.sym
+++ b/libpthread/linuxthreads/sysdeps/sh/tcb-offsets.sym
@@ -2,7 +2,7 @@
 #include <tls.h>
 
 --
-#ifdef USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
 MULTIPLE_THREADS_OFFSET offsetof (struct _pthread_descr_struct, p_multiple_threads)
 TLS_PRE_TCB_SIZE	sizeof (struct _pthread_descr_struct)
 #else
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
index 0bb16e453..220a925e6 100644
--- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
@@ -139,7 +139,7 @@
 #endif
 
 # ifndef __ASSEMBLER__
-#  if defined FLOATING_STACKS && USE___THREAD && defined __PIC__
+#  if defined FLOATING_STACKS && defined __UCLIBC_HAS_TLS__ && defined __PIC__
 #   define SINGLE_THREAD_P \
   __builtin_expect (THREAD_GETMEM (THREAD_SELF,				      \
 				   p_header.data.multiple_threads) == 0, 1)
@@ -155,7 +155,7 @@ extern int __local_multiple_threads
 # else
 #  if !defined __PIC__
 #   define SINGLE_THREAD_P cmpl $0, __local_multiple_threads
-#  elif defined FLOATING_STACKS && USE___THREAD
+#  elif defined FLOATING_STACKS && defined __UCLIBC_HAS_TLS__
 #   define SINGLE_THREAD_P cmpl $0, %gs:MULTIPLE_THREADS_OFFSET
 #  else
 #   if !defined NOT_IN_libc || defined IS_IN_libpthread
@@ -165,7 +165,7 @@ extern int __local_multiple_threads
   movl __local_multiple_threads@GOT(%ecx), %ecx;\
   cmpl $0, (%ecx)
 #   endif
-#   if !defined HAVE_HIDDEN || !USE___THREAD
+#   if !defined HAVE_HIDDEN || !defined __UCLIBC_HAS_TLS__
 #    define SINGLE_THREAD_P \
   SETUP_PIC_REG (cx);				\
   addl $_GLOBAL_OFFSET_TABLE_, %ecx;		\
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S
index fec902752..fb7596f27 100644
--- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S
@@ -32,7 +32,7 @@ ENTRY (__vfork)
 #ifdef __NR_vfork
 
 # ifdef SHARED
-#  if !defined HAVE_HIDDEN || !USE___THREAD
+#  if !defined HAVE_HIDDEN || !defined __UCLIBC_HAS_TLS__
 	SETUP_PIC_REG (cx)
 #  else
 	call	__i686.get_pc_thunk.cx
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h
index 48b2caadd..224c0e4d8 100644
--- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h
@@ -155,7 +155,7 @@
 # endif
 
 # ifndef __ASSEMBLER__
-#  if defined FLOATING_STACKS && USE___THREAD && defined __PIC__
+#  if defined FLOATING_STACKS && defined __UCLIBC_HAS_TLS__ && defined __PIC__
 #   define SINGLE_THREAD_P \
   __builtin_expect (THREAD_GETMEM (THREAD_SELF, p_multiple_threads) == 0, 1)
 #  else
@@ -172,7 +172,7 @@ extern int __local_multiple_threads attribute_hidden;
 	.align 2; \
      1: .long __local_multiple_threads; \
      2:
-#  elif defined FLOATING_STACKS && USE___THREAD
+#  elif defined FLOATING_STACKS && defined __UCLIBC_HAS_TLS__
 #   define SINGLE_THREAD_P \
 	stc gbr,r0; \
 	mov.w 0f,r1; \
diff --git a/libpthread/linuxthreads_db/td_ta_thr_iter.c b/libpthread/linuxthreads_db/td_ta_thr_iter.c
index 9ab04e14e..72b0ef916 100644
--- a/libpthread/linuxthreads_db/td_ta_thr_iter.c
+++ b/libpthread/linuxthreads_db/td_ta_thr_iter.c
@@ -40,7 +40,7 @@ handle_descr (const td_thragent_t *ta, td_thr_iter_f *callback,
 	  memset (&pds, '\0', sizeof (pds));
 
 	  /* Empty thread descriptor the thread library would create.  */
-#if !defined USE_TLS || !TLS_DTV_AT_TP
+#if !defined __UCLIBC_HAS_TLS__ || !TLS_DTV_AT_TP
 	  pds.p_header.data.self = &pds;
 #endif
 	  pds.p_nextlive = pds.p_prevlive = &pds;
diff --git a/libpthread/linuxthreads_db/td_thr_tls_get_addr.c b/libpthread/linuxthreads_db/td_thr_tls_get_addr.c
index c900cac8e..742cdd8be 100644
--- a/libpthread/linuxthreads_db/td_thr_tls_get_addr.c
+++ b/libpthread/linuxthreads_db/td_thr_tls_get_addr.c
@@ -27,7 +27,7 @@ td_thr_tls_get_addr (const td_thrhandle_t *th __attribute__ ((unused)),
 		     size_t offset __attribute__ ((unused)),
 		     void **address __attribute__ ((unused)))
 {
-#if USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   /* Read the module ID from the link_map.  */
   size_t modid;
   if (ps_pdread (th->th_ta_p->ph,
diff --git a/libpthread/linuxthreads_db/td_thr_tlsbase.c b/libpthread/linuxthreads_db/td_thr_tlsbase.c
index 00c863de2..76fd41900 100644
--- a/libpthread/linuxthreads_db/td_thr_tlsbase.c
+++ b/libpthread/linuxthreads_db/td_thr_tlsbase.c
@@ -30,7 +30,7 @@ td_thr_tlsbase (const td_thrhandle_t *th,
   if (modid < 1)
     return TD_NOTLS;
 
-#if USE_TLS
+#ifdef __UCLIBC_HAS_TLS__
   union dtv pdtv, *dtvp;
 
   LOG ("td_thr_tlsbase");