use a single libc and deduplicate threading code

Similar to musl libc a single libc has many benefits and solves
some open issues with uClibc-ng.

- no pthread_mutex_* weak symbols exported anymore
- applications no longer failing to link when either
  -lrt or -lpthread are missing for dynamic and static linking mode
- smaller C library
- slightly better runtime performance

1 files changed, 0 insertions, 128 deletions

diff --git a/libpthread/nptl/sysdeps/pthread/pt-initfini.c b/libpthread/nptl/sysdeps/pthread/pt-initfini.c
deleted file mode 100644
index d9881c7a8..000000000
--- a/libpthread/nptl/sysdeps/pthread/pt-initfini.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/* Special .init and .fini section support.  Linuxthread version.
-   Copyright (C) 1995,1996,1997,2000,2001,2002 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 of the License, or (at your option) any later version.
-
-   In addition to the permissions in the GNU Lesser General Public
-   License, the Free Software Foundation gives you unlimited
-   permission to link the compiled version of this file with other
-   programs, and to distribute those programs without any restriction
-   coming from the use of this file.  (The Library General Public
-   License restrictions do apply in other respects; for example, they
-   cover modification of the file, and distribution when not linked
-   into another program.)
-
-   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; see the file COPYING.LIB.  If not,
-   see <http://www.gnu.org/licenses/>.  */
-
-/* This file is compiled into assembly code which is then munged by a sed
-   script into two files: crti.s and crtn.s.
-
-   * crti.s puts a function prologue at the beginning of the
-   .init and .fini sections and defines global symbols for
-   those addresses, so they can be called as functions.
-
-   * crtn.s puts the corresponding function epilogues
-   in the .init and .fini sections. */
-
-#include <stdlib.h>
-
-/* We use embedded asm for .section unconditionally, as this makes it
-   easier to insert the necessary directives into crtn.S. */
-#define SECTION(x) __asm__ (".section " x )
-
-/* Embed an #include to pull in the alignment and .end directives. */
-__asm__ ("\n#include \"defs.h\"");
-__asm__ ("\n#if defined __i686 && defined __ASSEMBLER__");
-__asm__ ("\n#undef __i686");
-__asm__ ("\n#define __i686 __i686");
-__asm__ ("\n#endif");
-
-/* The initial common code ends here. */
-__asm__ ("\n/*@HEADER_ENDS*/");
-
-/* To determine whether we need .end and .align: */
-__asm__ ("\n/*@TESTS_BEGIN*/");
-extern void dummy (void (*foo) (void));
-void
-dummy (void (*foo) (void))
-{
-  if (foo)
-    (*foo) ();
-}
-__asm__ ("\n/*@TESTS_END*/");
-
-/* The beginning of _init:  */
-__asm__ ("\n/*@_init_PROLOG_BEGINS*/");
-
-static void
-call_initialize_minimal (void)
-{
-  extern void __pthread_initialize_minimal_internal (void)
-    __attribute ((visibility ("hidden")));
-
-  __pthread_initialize_minimal_internal ();
-}
-
-SECTION (".init");
-extern void __attribute__ ((section (".init"))) _init (void);
-void
-_init (void)
-{
-  /* The very first thing we must do is to set up the registers.  */
-  call_initialize_minimal ();
-
-  __asm__ ("ALIGN");
-  __asm__("END_INIT");
-  /* Now the epilog. */
-  __asm__ ("\n/*@_init_PROLOG_ENDS*/");
-  __asm__ ("\n/*@_init_EPILOG_BEGINS*/");
-  SECTION(".init");
-}
-__asm__ ("END_INIT");
-
-/* End of the _init epilog, beginning of the _fini prolog. */
-__asm__ ("\n/*@_init_EPILOG_ENDS*/");
-__asm__ ("\n/*@_fini_PROLOG_BEGINS*/");
-
-SECTION (".fini");
-extern void __attribute__ ((section (".fini"))) _fini (void);
-void
-_fini (void)
-{
-
-  /* End of the _fini prolog. */
-  __asm__ ("ALIGN");
-  __asm__ ("END_FINI");
-  __asm__ ("\n/*@_fini_PROLOG_ENDS*/");
-
-  {
-    /* Let GCC know that _fini is not a leaf function by having a dummy
-       function call here.  We arrange for this call to be omitted from
-       either crt file.  */
-    extern void i_am_not_a_leaf (void);
-    i_am_not_a_leaf ();
-  }
-
-  /* Beginning of the _fini epilog. */
-  __asm__ ("\n/*@_fini_EPILOG_BEGINS*/");
-  SECTION (".fini");
-}
-__asm__ ("END_FINI");
-
-/* End of the _fini epilog.  Any further generated assembly (e.g. .ident)
-   is shared between both crt files. */
-__asm__ ("\n/*@_fini_EPILOG_ENDS*/");
-__asm__ ("\n/*@TRAILER_BEGINS*/");
-
-/* End of file. */