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#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
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|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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typedef int greg_t, gregset_t[19];
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typedef struct _fpstate {
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unsigned long cw, sw, tag, ipoff, cssel, dataoff, datasel;
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unsigned short significand[4], exponent;
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unsigned short gs, __gsh, fs, __fsh, es, __esh, ds, __dsh;
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unsigned long edi, esi, ebp, esp, ebx, edx, ecx, eax;
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unsigned long trapno, err, eip;
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unsigned short cs, __csh;
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unsigned long eflags, esp_at_signal;
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unsigned short ss, __ssh;
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struct _fpstate *fpstate;
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unsigned long oldmask, cr2;
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unsigned long oldmask, cr2;
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typedef struct __ucontext {
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unsigned long uc_flags;
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struct __ucontext *uc_link;
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mcontext_t uc_mcontext;
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unsigned long __fpregs_mem[28];
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#define SA_NOCLDSTOP 1
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#define SA_NOCLDWAIT 2
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#define SA_ONSTACK 0x08000000
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#define SA_RESTART 0x10000000
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#define SA_NODEFER 0x40000000
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#define SA_RESETHAND 0x80000000
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#define SA_RESTORER 0x04000000
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#define SIGIOT SIGABRT
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#define SIGUNUSED SIGSYS