signal.h 3.5 KB

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  1. #ifndef _ASMARM_SIGNAL_H
  2. #define _ASMARM_SIGNAL_H
  3. #include <linux/types.h>
  4. /* Avoid too many header ordering problems. */
  5. struct siginfo;
  6. #ifdef __KERNEL__
  7. /* Most things should be clean enough to redefine this at will, if care
  8. is taken to make libc match. */
  9. #define _NSIG 64
  10. #define _NSIG_BPW 32
  11. #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
  12. typedef unsigned long old_sigset_t; /* at least 32 bits */
  13. typedef struct {
  14. unsigned long sig[_NSIG_WORDS];
  15. } sigset_t;
  16. #else
  17. /* Here we must cater to libcs that poke about in kernel headers. */
  18. #define NSIG 32
  19. typedef unsigned long sigset_t;
  20. #endif /* __KERNEL__ */
  21. #define SIGHUP 1
  22. #define SIGINT 2
  23. #define SIGQUIT 3
  24. #define SIGILL 4
  25. #define SIGTRAP 5
  26. #define SIGABRT 6
  27. #define SIGIOT 6
  28. #define SIGBUS 7
  29. #define SIGFPE 8
  30. #define SIGKILL 9
  31. #define SIGUSR1 10
  32. #define SIGSEGV 11
  33. #define SIGUSR2 12
  34. #define SIGPIPE 13
  35. #define SIGALRM 14
  36. #define SIGTERM 15
  37. #define SIGSTKFLT 16
  38. #define SIGCHLD 17
  39. #define SIGCONT 18
  40. #define SIGSTOP 19
  41. #define SIGTSTP 20
  42. #define SIGTTIN 21
  43. #define SIGTTOU 22
  44. #define SIGURG 23
  45. #define SIGXCPU 24
  46. #define SIGXFSZ 25
  47. #define SIGVTALRM 26
  48. #define SIGPROF 27
  49. #define SIGWINCH 28
  50. #define SIGIO 29
  51. #define SIGPOLL SIGIO
  52. /*
  53. #define SIGLOST 29
  54. */
  55. #define SIGPWR 30
  56. #define SIGSYS 31
  57. #define SIGUNUSED 31
  58. /* These should not be considered constants from userland. */
  59. #define SIGRTMIN 32
  60. #define SIGRTMAX _NSIG
  61. #define SIGSWI 32
  62. /*
  63. * SA_FLAGS values:
  64. *
  65. * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  66. * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  67. * SA_SIGINFO deliver the signal with SIGINFO structs
  68. * SA_THIRTYTWO delivers the signal in 32-bit mode, even if the task
  69. * is running in 26-bit.
  70. * SA_ONSTACK allows alternate signal stacks (see sigaltstack(2)).
  71. * SA_RESTART flag to get restarting signals (which were the default long ago)
  72. * SA_NODEFER prevents the current signal from being masked in the handler.
  73. * SA_RESETHAND clears the handler when the signal is delivered.
  74. *
  75. * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  76. * Unix names RESETHAND and NODEFER respectively.
  77. */
  78. #define SA_NOCLDSTOP 0x00000001
  79. #define SA_NOCLDWAIT 0x00000002
  80. #define SA_SIGINFO 0x00000004
  81. #define SA_THIRTYTWO 0x02000000
  82. #define SA_RESTORER 0x04000000
  83. #define SA_ONSTACK 0x08000000
  84. #define SA_RESTART 0x10000000
  85. #define SA_NODEFER 0x40000000
  86. #define SA_RESETHAND 0x80000000
  87. #define SA_NOMASK SA_NODEFER
  88. #define SA_ONESHOT SA_RESETHAND
  89. /*
  90. * sigaltstack controls
  91. */
  92. #define SS_ONSTACK 1
  93. #define SS_DISABLE 2
  94. #define MINSIGSTKSZ 2048
  95. #define SIGSTKSZ 8192
  96. #include <asm-generic/signal.h>
  97. #ifdef __KERNEL__
  98. struct old_sigaction {
  99. __sighandler_t sa_handler;
  100. old_sigset_t sa_mask;
  101. unsigned long sa_flags;
  102. __sigrestore_t sa_restorer;
  103. };
  104. struct sigaction {
  105. __sighandler_t sa_handler;
  106. unsigned long sa_flags;
  107. __sigrestore_t sa_restorer;
  108. sigset_t sa_mask; /* mask last for extensibility */
  109. };
  110. struct k_sigaction {
  111. struct sigaction sa;
  112. };
  113. #else
  114. /* Here we must cater to libcs that poke about in kernel headers. */
  115. struct sigaction {
  116. union {
  117. __sighandler_t _sa_handler;
  118. void (*_sa_sigaction)(int, struct siginfo *, void *);
  119. } _u;
  120. sigset_t sa_mask;
  121. unsigned long sa_flags;
  122. void (*sa_restorer)(void);
  123. };
  124. #define sa_handler _u._sa_handler
  125. #define sa_sigaction _u._sa_sigaction
  126. #endif /* __KERNEL__ */
  127. typedef struct sigaltstack {
  128. void __user *ss_sp;
  129. int ss_flags;
  130. size_t ss_size;
  131. } stack_t;
  132. #ifdef __KERNEL__
  133. #include <asm/sigcontext.h>
  134. #define ptrace_signal_deliver(regs, cookie) do { } while (0)
  135. #endif
  136. #endif