nptl/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c

   1 /* Special .init and .fini section support for 64 bit S/390.
   2    Copyright (C) 2003, 2009 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it
   6    and/or modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    In addition to the permissions in the GNU Lesser General Public
  11    License, the Free Software Foundation gives you unlimited
  12    permission to link the compiled version of this file with other
  13    programs, and to distribute those programs without any restriction
  14    coming from the use of this file.  (The Lesser General Public
  15    License restrictions do apply in other respects; for example, they
  16    cover modification of the file, and distribution when not linked
  17    into another program.)
  18
  19    The GNU C Library is distributed in the hope that it will be
  20    useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  21    of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22    GNU Lesser General Public License for more details.
  23
  24    You should have received a copy of the GNU Lesser General Public
  25    License along with the GNU C Library; see the file COPYING.LIB.  If
  26    not, see <http://www.gnu.org/licenses/>.  */
  27
  28 /* This file is compiled into assembly code which is then munged by a sed
  29    script into two files: crti.s and crtn.s.
  30
  31    * crti.s puts a function prologue at the beginning of the
  32    .init and .fini sections and defines global symbols for
  33    those addresses, so they can be called as functions.
  34
  35    * crtn.s puts the corresponding function epilogues
  36    in the .init and .fini sections. */
  37
  38 __asm__ ("\
  39 \n\
  40 #include \"defs.h\"\n\
  41 \n\
  42 /*@HEADER_ENDS*/\n\
  43 \n\
  44 /*@TESTS_BEGIN*/\n\
  45 \n\
  46 /*@TESTS_END*/\n\
  47 \n\
  48 /*@_init_PROLOG_BEGINS*/\n\
  49 \n\
  50         .section .init\n\
  51 #NO_APP\n\
  52         .align 4\n\
  53 .globl _init\n\
  54         .type    _init,@function\n\
  55 _init:\n\
  56 #       leaf function           0\n\
  57 #       automatics              0\n\
  58 #       outgoing args           0\n\
  59 #       need frame pointer      0\n\
  60 #       call alloca             0\n\
  61 #       has varargs             0\n\
  62 #       incoming args (stack)   0\n\
  63 #       function length         36\n\
  64         STMG    6,15,48(15)\n\
  65         LGR     1,15\n\
  66         AGHI    15,-160\n\
  67         STG     1,0(15)\n\
  68         LARL    12,_GLOBAL_OFFSET_TABLE_\n\
  69         BRASL   14,__pthread_initialize_minimal_internal\n\
  70 #APP\n\
  71         .align 4,0x07\n\
  72         END_INIT\n\
  73 \n\
  74 /*@_init_PROLOG_ENDS*/\n\
  75 \n\
  76 /*@_init_EPILOG_BEGINS*/\n\
  77         .align 4\n\
  78         .section .init\n\
  79 #NO_APP\n\
  80         .align 4\n\
  81         LG      4,272(15)\n\
  82         LMG     6,15,208(15)\n\
  83         BR      4\n\
  84 #APP\n\
  85         END_INIT\n\
  86 \n\
  87 /*@_init_EPILOG_ENDS*/\n\
  88 \n\
  89 /*@_fini_PROLOG_BEGINS*/\n\
  90         .section .fini\n\
  91 #NO_APP\n\
  92         .align 4\n\
  93 .globl _fini\n\
  94         .type    _fini,@function\n\
  95 _fini:\n\
  96 #       leaf function           0\n\
  97 #       automatics              0\n\
  98 #       outgoing args           0\n\
  99 #       need frame pointer      0\n\
 100 #       call alloca             0\n\
 101 #       has varargs             0\n\
 102 #       incoming args (stack)   0\n\
 103 #       function length         30\n\
 104         STMG    6,15,48(15)\n\
 105         LGR     1,15\n\
 106         AGHI    15,-160\n\
 107         STG     1,0(15)\n\
 108         LARL    12,_GLOBAL_OFFSET_TABLE_\n\
 109 #APP\n\
 110         .align 4,0x07\n\
 111         END_FINI\n\
 112 \n\
 113 /*@_fini_PROLOG_ENDS*/\n\
 114 \n\
 115 /*@_fini_EPILOG_BEGINS*/\n\
 116         .align 4\n\
 117         .section .fini\n\
 118 #NO_APP\n\
 119         .align 4\n\
 120         LG      4,272(15)\n\
 121         LMG     6,15,208(15)\n\
 122         BR      4\n\
 123 #APP\n\
 124         END_FINI\n\
 125 \n\
 126 /*@_fini_EPILOG_ENDS*/\n\
 127 \n\
 128 /*@TRAILER_BEGINS*/\n\
 129         ");