signal.h 3.4 KB

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