#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)

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)

UCONTEXT_REGSPACE		ucontext (uc_regspace)

MCONTEXT_TRAP_NO		mcontext (trap_no)
MCONTEXT_ERROR_CODE		mcontext (error_code)
MCONTEXT_OLDMASK		mcontext (oldmask)
MCONTEXT_ARM_R0		mcontext (arm_r0)
MCONTEXT_ARM_R4		mcontext (arm_r4)
MCONTEXT_ARM_SP		mcontext (arm_sp)
MCONTEXT_ARM_LR		mcontext (arm_lr)
MCONTEXT_ARM_PC		mcontext (arm_pc)
MCONTEXT_ARM_CPSR		mcontext (arm_cpsr)
MCONTEXT_FAULT_ADDRESS		mcontext (fault_address)