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#include <inttypes.h>
#include <signal.h>
#include <stddef.h>
#include <sys/ucontext.h>
SIG_BLOCK
SIG_SETMASK
-- Offsets of the fields in the ucontext_t structure.
#define ucontext(member) offsetof (ucontext_t, member)
#define mcontext(member) ucontext (uc_mcontext.member)
#define greg(member) mcontext (__gregs.member)
#define fpreg(member) mcontext (__fpregs.member)
UCONTEXT_FLAGS ucontext (__uc_flags)
UCONTEXT_LINK ucontext (uc_link)
UCONTEXT_STACK ucontext (uc_stack)
UCONTEXT_MCONTEXT ucontext (uc_mcontext)
UCONTEXT_SIGMASK ucontext (uc_sigmask)
MCONTEXT_CSKY_PC greg (__pc)
MCONTEXT_CSKY_SP greg (__usp)
MCONTEXT_CSKY_LR greg (__lr)
MCONTEXT_CSKY_A0 greg (__a0)
MCONTEXT_CSKY_R8 greg (__regs[2])
MCONTEXT_CSKY_R16 greg (__exregs[0])
MCONTEXT_CSKY_HI greg (__rhi)
MCONTEXT_CSKY_LO greg (__rlo)
MCONTEXT_CSKY_R4 greg (__regs[0])
MCONTEXT_CSKY_FESR fpreg (__fesr)
MCONTEXT_CSKY_FCR fpreg (__fcr)
MCONTEXT_CSKY_FR0 fpreg (__vr[0])
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