(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 0 insertions, 263 deletions

diff --git a/csu/libc-tls.c b/csu/libc-tls.c
deleted file mode 100644
index 3544e396da..0000000000
--- a/csu/libc-tls.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/* Initialization code for TLS in statically linked application.
-   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
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <errno.h>
-#include <ldsodefs.h>
-#include <tls.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <sys/param.h>
-
-
-#ifdef SHARED
- #error makefile bug, this file is for static only
-#endif
-
-#ifdef USE_TLS
-extern ElfW(Phdr) *_dl_phdr;
-extern size_t _dl_phnum;
-
-
-static dtv_t static_dtv[2 + TLS_SLOTINFO_SURPLUS];
-
-
-static struct
-{
-  struct dtv_slotinfo_list si;
-  /* The dtv_slotinfo_list data structure does not include the actual
-     information since it is defined as an array of size zero.  We define
-     here the necessary entries.  Note that it is not important whether
-     there is padding or not since we will always access the information
-     through the 'si' element.  */
-  struct dtv_slotinfo info[2 + TLS_SLOTINFO_SURPLUS];
-} static_slotinfo;
-
-/* Fake link map for the application.  */
-static struct link_map static_map;
-
-
-/* Highest dtv index currently needed.  */
-size_t _dl_tls_max_dtv_idx;
-/* Flag signalling whether there are gaps in the module ID allocation.  */
-bool _dl_tls_dtv_gaps;
-/* Information about the dtv slots.  */
-struct dtv_slotinfo_list *_dl_tls_dtv_slotinfo_list;
-/* Number of modules in the static TLS block.  */
-size_t _dl_tls_static_nelem;
-/* Size of the static TLS block.  Giving this initialized value
-   preallocates some surplus bytes in the static TLS area.  */
-size_t _dl_tls_static_size = 2048;
-/* Size actually allocated in the static TLS block.  */
-size_t _dl_tls_static_used;
-/* Alignment requirement of the static TLS block.  */
-size_t _dl_tls_static_align;
-
-/* Generation counter for the dtv.  */
-size_t _dl_tls_generation;
-
-
-/* Additional definitions needed by TLS initialization.  */
-#ifdef TLS_INIT_HELPER
-TLS_INIT_HELPER
-#endif
-
-static inline void
-init_slotinfo (void)
-{
-  /* Create the slotinfo list.  */
-  static_slotinfo.si.len = (((char *) (&static_slotinfo + 1)
-			     - (char *) &static_slotinfo.si.slotinfo[0])
-			    / sizeof static_slotinfo.si.slotinfo[0]);
-  // static_slotinfo.si.next = NULL;	already zero
-
-  /* The slotinfo list.  Will be extended by the code doing dynamic
-     linking.  */
-  GL(dl_tls_max_dtv_idx) = 1;
-  GL(dl_tls_dtv_slotinfo_list) = &static_slotinfo.si;
-}
-
-static inline void
-init_static_tls (size_t memsz, size_t align)
-{
-  /* That is the size of the TLS memory for this object.  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.  */
-  GL(dl_tls_static_size) = roundup (memsz + GL(dl_tls_static_size),
-				    TLS_TCB_ALIGN);
-  GL(dl_tls_static_used) = memsz;
-  /* The alignment requirement for the static TLS block.  */
-  GL(dl_tls_static_align) = align;
-  /* Number of elements in the static TLS block.  */
-  GL(dl_tls_static_nelem) = GL(dl_tls_max_dtv_idx);
-}
-
-void
-__libc_setup_tls (size_t tcbsize, size_t tcbalign)
-{
-  void *tlsblock;
-  size_t memsz = 0;
-  size_t filesz = 0;
-  void *initimage = NULL;
-  size_t align = 0;
-  size_t max_align = tcbalign;
-  size_t tcb_offset;
-  ElfW(Phdr) *phdr;
-
-  /* Look through the TLS segment if there is any.  */
-  if (_dl_phdr != NULL)
-    for (phdr = _dl_phdr; phdr < &_dl_phdr[_dl_phnum]; ++phdr)
-      if (phdr->p_type == PT_TLS)
-	{
-	  /* Remember the values we need.  */
-	  memsz = phdr->p_memsz;
-	  filesz = phdr->p_filesz;
-	  initimage = (void *) phdr->p_vaddr;
-	  align = phdr->p_align;
-	  if (phdr->p_align > max_align)
-	    max_align = phdr->p_align;
-	  break;
-	}
-
-  /* We have to set up the TCB block which also (possibly) contains
-     'errno'.  Therefore we avoid 'malloc' which might touch 'errno'.
-     Instead we use 'sbrk' which would only uses 'errno' if it fails.
-     In this case we are right away out of memory and the user gets
-     what she/he deserves.
-
-     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
-  tcb_offset = roundup (memsz + GL(dl_tls_static_size), tcbalign);
-  tlsblock = __sbrk (tcb_offset + tcbsize + max_align);
-# 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
-  /* 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
-
-  /* Align the TLS block.  */
-  tlsblock = (void *) (((uintptr_t) tlsblock + max_align - 1)
-		       & ~(max_align - 1));
-
-  /* Initialize the dtv.  [0] is the length, [1] the generation counter.  */
-  static_dtv[0].counter = (sizeof (static_dtv) / sizeof (static_dtv[0])) - 2;
-  // static_dtv[1].counter = 0;		would be needed if not already done
-
-  /* Initialize the TLS block.  */
-# 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
-  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
-  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);
-
-  /* Install the pointer to the dtv.  */
-
-  /* Initialize the thread pointer.  */
-# 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
-  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
-  if (__builtin_expect (lossage != NULL, 0))
-    __libc_fatal (lossage);
-
-  /* We have to create a fake link map which normally would be created
-     by the dynamic linker.  It just has to have enough information to
-     make the TLS routines happy.  */
-  static_map.l_tls_align = align;
-  static_map.l_tls_blocksize = memsz;
-  static_map.l_tls_initimage = initimage;
-  static_map.l_tls_initimage_size = filesz;
-  static_map.l_type = lt_executable;
-  static_map.l_tls_modid = 1;
-
-  init_slotinfo ();
-  // static_slotinfo.si.slotinfo[1].gen = 0; already zero
-  static_slotinfo.si.slotinfo[1].map = &static_map;
-
-  memsz = roundup (memsz, align ?: 1);
-
-# if TLS_TCB_AT_TP
-  memsz += tcbsize;
-# elif TLS_DTV_AT_TP
-  memsz += tcb_offset;
-# endif
-
-  init_static_tls (memsz, MAX (TLS_TCB_ALIGN, max_align));
-}
-
-/* This is called only when the data structure setup was skipped at startup,
-   when there was no need for it then.  Now we have dynamically loaded
-   something needing TLS, or libpthread needs it.  */
-int
-internal_function
-_dl_tls_setup (void)
-{
-  init_slotinfo ();
-  init_static_tls (
-# if TLS_TCB_AT_TP
-		   TLS_TCB_SIZE,
-# else
-		   0,
-# endif
-		   TLS_TCB_ALIGN);
-  return 0;
-}
-
-
-/* This is the minimal initialization function used when libpthread is
-   not used.  */
-void
-__attribute__ ((weak))
-__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