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  1. /*
  2.  * Copyright (c) 2008 Jiri Svoboda
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup rtld
  30.  * @brief   Test dynamic linking capabilities.
  31.  * @{
  32.  */
  33. /**
  34.  * @file
  35.  */
  36.  
  37. void __io_init(void);
  38. void __main(void);
  39. void __exit(void);
  40.  
  41. static void kputint(unsigned i)
  42. {
  43.     unsigned dummy;
  44.     asm volatile (
  45.         "movl $30, %%eax;"
  46.         "int $0x30"
  47.         : "=d" (dummy) /* output - %edx clobbered */
  48.         : "d" (i) /* input */
  49.         : "%eax","%ecx" /* all scratch registers clobbered */
  50.     );
  51. }
  52.  
  53.  
  54. static void test(void)
  55. {
  56.     kputint(-1);
  57.     kputint(42);
  58.     while(1);
  59. }
  60.  
  61. int main(int argc, char *argv[])
  62. {
  63.     test();
  64.     return 0;
  65. }
  66.  
  67. void __io_init(void)
  68. {
  69. }
  70.  
  71. void __main(void)
  72. {
  73.     main(0, 0);
  74. }
  75.  
  76. void __exit(void)
  77. {
  78. }
  79.  
  80.  
  81. /** @}
  82.  */
  83.  
  84.