.

5 files changed, 57 insertions, 142 deletions

diff --git a/csu/Versions b/csu/Versions
index f0b4f00549..a1321a9df8 100644
--- a/csu/Versions
+++ b/csu/Versions
@@ -5,7 +5,7 @@ libc {
     # helper functions
     __libc_init_first; __libc_start_main;
 
-%if !HAVE___THREAD
+%if !(USE_TLS && HAVE___THREAD)
     # global variables
     _errno;
 
@@ -18,7 +18,7 @@ libc {
     gnu_get_libc_release; gnu_get_libc_version;
   }
   GLIBC_PRIVATE {
-%if HAVE___THREAD
+%if USE_TLS && HAVE___THREAD
     # This version is for the TLS symbol, GLIBC_2.0 is the old object symbol.
     errno;
 %endif
diff --git a/csu/libc-start.c b/csu/libc-start.c
index 634844759d..194db6b1ec 100644
--- a/csu/libc-start.c
+++ b/csu/libc-start.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998-2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -30,7 +30,11 @@ extern int __libc_multiple_libcs;
 #include <tls.h>
 #ifndef SHARED
 # include <dl-osinfo.h>
-extern void __pthread_initialize_minimal (void);
+extern void __pthread_initialize_minimal (void)
+# if !(USE_TLS - 0) && !defined NONTLS_INIT_TP
+     __attribute__ ((weak))
+# endif
+     ;
 # ifndef THREAD_SET_STACK_GUARD
 /* Only exported for architectures that don't store the stack guard canary
    in thread local area.  */
@@ -136,8 +140,13 @@ LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL),
 
   /* Initialize the thread library at least a bit since the libgcc
      functions are using thread functions if these are available and
-     we need to setup errno.  */
-  __pthread_initialize_minimal ();
+     we need to setup errno.  If there is no thread library and we
+     handle TLS the function is defined in the libc to initialized the
+     TLS handling.  */
+# if !(USE_TLS - 0) && !defined NONTLS_INIT_TP
+  if (__pthread_initialize_minimal)
+# endif
+    __pthread_initialize_minimal ();
 #endif
 
 # ifndef SHARED
diff --git a/csu/libc-tls.c b/csu/libc-tls.c
index 0d240ccef9..3544e396da 100644
--- a/csu/libc-tls.c
+++ b/csu/libc-tls.c
@@ -1,5 +1,5 @@
 /* Initialization code for TLS in statically linked application.
-   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -29,6 +29,7 @@
  #error makefile bug, this file is for static only
 #endif
 
+#ifdef USE_TLS
 extern ElfW(Phdr) *_dl_phdr;
 extern size_t _dl_phnum;
 
@@ -142,19 +143,19 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign)
      The initialized value of _dl_tls_static_size is provided by dl-open.c
      to request some surplus that permits dynamic loading of modules with
      IE-model TLS.  */
-#if TLS_TCB_AT_TP
+# if TLS_TCB_AT_TP
   tcb_offset = roundup (memsz + GL(dl_tls_static_size), tcbalign);
   tlsblock = __sbrk (tcb_offset + tcbsize + max_align);
-#elif TLS_DTV_AT_TP
+# elif TLS_DTV_AT_TP
   tcb_offset = roundup (tcbsize, align ?: 1);
   tlsblock = __sbrk (tcb_offset + memsz + max_align
 		     + TLS_PRE_TCB_SIZE + GL(dl_tls_static_size));
   tlsblock += TLS_PRE_TCB_SIZE;
-#else
+# else
   /* In case a model with a different layout for the TCB and DTV
      is defined add another #elif here and in the following #ifs.  */
-# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
-#endif
+#  error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
+# endif
 
   /* Align the TLS block.  */
   tlsblock = (void *) (((uintptr_t) tlsblock + max_align - 1)
@@ -165,16 +166,16 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign)
   // static_dtv[1].counter = 0;		would be needed if not already done
 
   /* Initialize the TLS block.  */
-#if TLS_TCB_AT_TP
+# if TLS_TCB_AT_TP
   static_dtv[2].pointer.val = ((char *) tlsblock + tcb_offset
 			       - roundup (memsz, align ?: 1));
   static_map.l_tls_offset = roundup (memsz, align ?: 1);
-#elif TLS_DTV_AT_TP
+# elif TLS_DTV_AT_TP
   static_dtv[2].pointer.val = (char *) tlsblock + tcb_offset;
   static_map.l_tls_offset = tcb_offset;
-#else
-# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
-#endif
+# else
+#  error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
+# endif
   static_dtv[2].pointer.is_static = true;
   /* sbrk gives us zero'd memory, so we don't need to clear the remainder.  */
   memcpy (static_dtv[2].pointer.val, initimage, filesz);
@@ -182,16 +183,16 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign)
   /* Install the pointer to the dtv.  */
 
   /* Initialize the thread pointer.  */
-#if TLS_TCB_AT_TP
+# if TLS_TCB_AT_TP
   INSTALL_DTV ((char *) tlsblock + tcb_offset, static_dtv);
 
   const char *lossage = TLS_INIT_TP ((char *) tlsblock + tcb_offset, 0);
-#elif TLS_DTV_AT_TP
+# elif TLS_DTV_AT_TP
   INSTALL_DTV (tlsblock, static_dtv);
   const char *lossage = TLS_INIT_TP (tlsblock, 0);
-#else
-# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
-#endif
+# else
+#  error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
+# endif
   if (__builtin_expect (lossage != NULL, 0))
     __libc_fatal (lossage);
 
@@ -211,11 +212,11 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign)
 
   memsz = roundup (memsz, align ?: 1);
 
-#if TLS_TCB_AT_TP
+# if TLS_TCB_AT_TP
   memsz += tcbsize;
-#elif TLS_DTV_AT_TP
+# elif TLS_DTV_AT_TP
   memsz += tcb_offset;
-#endif
+# endif
 
   init_static_tls (memsz, MAX (TLS_TCB_ALIGN, max_align));
 }
@@ -229,11 +230,11 @@ _dl_tls_setup (void)
 {
   init_slotinfo ();
   init_static_tls (
-#if TLS_TCB_AT_TP
+# if TLS_TCB_AT_TP
 		   TLS_TCB_SIZE,
-#else
+# else
 		   0,
-#endif
+# endif
 		   TLS_TCB_ALIGN);
   return 0;
 }
@@ -247,3 +248,16 @@ __pthread_initialize_minimal (void)
 {
   __libc_setup_tls (TLS_INIT_TCB_SIZE, TLS_INIT_TCB_ALIGN);
 }
+
+#elif defined NONTLS_INIT_TP
+
+/* This is the minimal initialization function used when libpthread is
+   not used.  */
+void
+__attribute__ ((weak))
+__pthread_initialize_minimal (void)
+{
+  NONTLS_INIT_TP;
+}
+
+#endif
diff --git a/csu/tst-atomic.c b/csu/tst-atomic.c
index 7c0b022b78..7a2e3d0865 100644
--- a/csu/tst-atomic.c
+++ b/csu/tst-atomic.c
@@ -1,5 +1,5 @@
 /* Tests for atomic.h macros.
-   Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
 
@@ -379,117 +379,6 @@ do_test (void)
     }
 #endif
 
-#ifdef catomic_compare_and_exchange_val_acq
-  mem = 24;
-  if (catomic_compare_and_exchange_val_acq (&mem, 35, 24) != 24
-      || mem != 35)
-    {
-      puts ("catomic_compare_and_exchange_val_acq test 1 failed");
-      ret = 1;
-    }
-
-  mem = 12;
-  if (catomic_compare_and_exchange_val_acq (&mem, 10, 15) != 12
-      || mem != 12)
-    {
-      puts ("catomic_compare_and_exchange_val_acq test 2 failed");
-      ret = 1;
-    }
-
-  mem = -15;
-  if (catomic_compare_and_exchange_val_acq (&mem, -56, -15) != -15
-      || mem != -56)
-    {
-      puts ("catomic_compare_and_exchange_val_acq test 3 failed");
-      ret = 1;
-    }
-
-  mem = -1;
-  if (catomic_compare_and_exchange_val_acq (&mem, 17, 0) != -1
-      || mem != -1)
-    {
-      puts ("catomic_compare_and_exchange_val_acq test 4 failed");
-      ret = 1;
-    }
-#endif
-
-  mem = 24;
-  if (catomic_compare_and_exchange_bool_acq (&mem, 35, 24)
-      || mem != 35)
-    {
-      puts ("catomic_compare_and_exchange_bool_acq test 1 failed");
-      ret = 1;
-    }
-
-  mem = 12;
-  if (! catomic_compare_and_exchange_bool_acq (&mem, 10, 15)
-      || mem != 12)
-    {
-      puts ("catomic_compare_and_exchange_bool_acq test 2 failed");
-      ret = 1;
-    }
-
-  mem = -15;
-  if (catomic_compare_and_exchange_bool_acq (&mem, -56, -15)
-      || mem != -56)
-    {
-      puts ("catomic_compare_and_exchange_bool_acq test 3 failed");
-      ret = 1;
-    }
-
-  mem = -1;
-  if (! catomic_compare_and_exchange_bool_acq (&mem, 17, 0)
-      || mem != -1)
-    {
-      puts ("catomic_compare_and_exchange_bool_acq test 4 failed");
-      ret = 1;
-    }
-
-  mem = 2;
-  if (catomic_exchange_and_add (&mem, 11) != 2
-      || mem != 13)
-    {
-      puts ("catomic_exchange_and_add test failed");
-      ret = 1;
-    }
-
-  mem = -21;
-  catomic_add (&mem, 22);
-  if (mem != 1)
-    {
-      puts ("catomic_add test failed");
-      ret = 1;
-    }
-
-  mem = -1;
-  catomic_increment (&mem);
-  if (mem != 0)
-    {
-      puts ("catomic_increment test failed");
-      ret = 1;
-    }
-
-  mem = 2;
-  if (catomic_increment_val (&mem) != 3)
-    {
-      puts ("catomic_increment_val test failed");
-      ret = 1;
-    }
-
-  mem = 17;
-  catomic_decrement (&mem);
-  if (mem != 16)
-    {
-      puts ("catomic_decrement test failed");
-      ret = 1;
-    }
-
-  if (catomic_decrement_val (&mem) != 15)
-    {
-      puts ("catomic_decrement_val test failed");
-      ret = 1;
-    }
-
   return ret;
 }
 
diff --git a/csu/version.c b/csu/version.c
index f7a8fb35e9..2196d20432 100644
--- a/csu/version.c
+++ b/csu/version.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2006, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2002, 2003, 2004, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -25,7 +25,7 @@ static const char __libc_version[] = VERSION;
 
 static const char banner[] =
 "GNU C Library "RELEASE" release version "VERSION", by Roland McGrath et al.\n\
-Copyright (C) 2007 Free Software Foundation, Inc.\n\
+Copyright (C) 2006 Free Software Foundation, Inc.\n\
 This is free software; see the source for copying conditions.\n\
 There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
 PARTICULAR PURPOSE.\n\
@@ -34,6 +34,9 @@ Compiled by GNU CC version "__VERSION__".\n"
 #ifdef GLIBC_OLDEST_ABI
 "The oldest ABI supported: " GLIBC_OLDEST_ABI ".\n"
 #endif
+#ifdef USE_TLS
+"Thread-local storage support included.\n"
+#endif
 "For bug reporting instructions, please see:\n\
 <http://www.gnu.org/software/libc/bugs.html>.\n";