lib/csu/arch/mips/crtbegin.h

   1 /*-
   2  * Copyright (c) 2013 The NetBSD Foundation, Inc.
   3  * All rights reserved.
   4  *
   5  * This code is derived from software contributed to The NetBSD Foundation
   6  * by Matt Thomas of 3am Software Foundry.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27  * POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 __asm(  "\n\t"
  31         ".pushsection .init, \"ax\", @progbits"                 "\n\t"
  32 #ifdef __mips_o32
  33         ".set noreorder"                                        "\n\t"
  34         ".set nomacro"                                          "\n\t"
  35         "move   $28,$16"                                        "\n\t"
  36         "lw     $25,%got(__do_global_ctors_aux)($28)"           "\n\t"
  37         "nop"                                                   "\n\t"
  38         "addiu   $25,$25,%lo(__do_global_ctors_aux)"            "\n\t"
  39         ".reloc 1f,R_MIPS_JALR,__do_global_ctors_aux"           "\n\t"
  40         "1:     jalr    $25"                                    "\n\t"
  41         "nop"                                                   "\n\t"
  42         ".set macro"                                            "\n\t"
  43         ".set reorder"                                          "\n\t"
  44 #else
  45         "jal    __do_global_ctors_aux"                          "\n\t"
  46 #endif
  47         ".popsection");
  48
  49 __asm(  "\n\t"
  50         ".pushsection .fini, \"ax\", @progbits" "\n\t"
  51 #ifdef __mips_o32
  52         ".set noreorder"                                        "\n\t"
  53         ".set nomacro"                                          "\n\t"
  54         "move   $28,$16"                                        "\n\t"
  55         "lw     $25,%got(__do_global_dtors_aux)($28)"           "\n\t"
  56         "nop"                                                   "\n\t"
  57         "addiu   $25,$25,%lo(__do_global_dtors_aux)"            "\n\t"
  58         ".reloc 1f,R_MIPS_JALR,__do_global_dtors_aux"           "\n\t"
  59         "1:     jalr    $25"                                    "\n\t"
  60         "nop"                                                   "\n\t"
  61         ".set macro"                                            "\n\t"
  62         ".set reorder"                                          "\n\t"
  63 #else
  64         "jal    __do_global_dtors_aux"                          "\n\t"
  65 #endif
  66         ".popsection");