syscall_funclookup.c 4.3 KB

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  1. /****************************************************************************
  2. * syscall/syscall_funclookup.c
  3. *
  4. * Copyright (C) 2011-2014 Gregory Nutt. All rights reserved.
  5. * Author: Gregory Nutt <gnutt@nuttx.org>
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following conditions
  9. * are met:
  10. *
  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
  15. * the documentation and/or other materials provided with the
  16. * distribution.
  17. * 3. Neither the name NuttX nor the names of its contributors may be
  18. * used to endorse or promote products derived from this software
  19. * without specific prior written permission.
  20. *
  21. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24. * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  25. * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27. * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  28. * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29. * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31. * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32. * POSSIBILITY OF SUCH DAMAGE.
  33. *
  34. ****************************************************************************/
  35. /****************************************************************************
  36. * Included Files
  37. ****************************************************************************/
  38. #include <nuttx/config.h>
  39. #include <syscall.h>
  40. /* The content of this file is only meaningful during the kernel phase of
  41. * a kernel build.
  42. */
  43. #if defined(CONFIG_LIB_SYSCALL) && defined(__KERNEL__)
  44. #include <sys/stat.h>
  45. #include <sys/wait.h>
  46. #include <sys/ioctl.h>
  47. #include <sys/time.h>
  48. #include <sys/select.h>
  49. #include <sys/mman.h>
  50. #include <sys/stat.h>
  51. #include <sys/statfs.h>
  52. #include <sys/prctl.h>
  53. #include <sys/socket.h>
  54. #include <sys/mount.h>
  55. #include <sys/boardctl.h>
  56. #include <stdio.h>
  57. #include <stdlib.h>
  58. #include <unistd.h>
  59. #include <fcntl.h>
  60. #include <dirent.h>
  61. #include <poll.h>
  62. #include <time.h>
  63. #include <sched.h>
  64. #include <pthread.h>
  65. #include <semaphore.h>
  66. #include <signal.h>
  67. #include <mqueue.h>
  68. #include <spawn.h>
  69. #include <termios.h>
  70. #include <assert.h>
  71. /* Errno access is awkward. We need to generate get_errno() and set_errno()
  72. * interfaces to support the system calls, even though we don't use them
  73. * ourself.
  74. *
  75. * The "normal" pre-processor defintions for these functions is in errno.h
  76. * but we need the internal function prototypes in nuttx/errno.h.
  77. */
  78. #undef get_errno
  79. #undef set_errno
  80. #include <errno.h>
  81. #include <nuttx/clock.h>
  82. /****************************************************************************
  83. * Pre-processor Definitions
  84. ****************************************************************************/
  85. /****************************************************************************
  86. * Public Data
  87. ****************************************************************************/
  88. /* Function lookup tables. This table is indexed by the system call numbers
  89. * defined above. Given the system call number, this table provides the
  90. * address of the corresponding system function.
  91. *
  92. * This table is only available during the kernel phase of a kernel build.
  93. */
  94. const uintptr_t g_funclookup[SYS_nsyscalls] =
  95. {
  96. # undef SYSCALL_LOOKUP1
  97. # define SYSCALL_LOOKUP1(f,n,p) (uintptr_t)f
  98. # undef SYSCALL_LOOKUP
  99. # define SYSCALL_LOOKUP(f,n,p) , (uintptr_t)f
  100. # include "syscall_lookup.h"
  101. };
  102. /****************************************************************************
  103. * Private Functions
  104. ****************************************************************************/
  105. /****************************************************************************
  106. * Public Functions
  107. ****************************************************************************/
  108. #endif /* CONFIG_LIB_SYSCALL && __KERNEL__ */