siginfo_t & SignalfdSiginfo comparison

/x/sys/unix SignalfdSiginfo struct vs C siginfo_t struct

GO:		C:
Signo		si_signo	/* Signal number */
Errno		si_errno	/* An errno value */
Code		si_code		/* Signal code */
Trapno		si_trapno	/* Trap number that caused
                	           hardware-generated signal
                		   (unused on most architectures) */
Pid		si_pid		/* Sending process ID */
Uid		si_uid		/* Real user ID of sending process */
Status		si_status	/* Exit value or signal */
Utime		si_utime	/* User time consumed */
Stime		si_stime	/* System time consumed */
_____		si_sigval	/* Signal value */ <-- needed value
Int		si_int		/* POSIX.1B signal */
Ptr		si_ptr		/* POSIX.1B signal */
Overrun		si_overrun	/* Timer overrun count;
			   POSIX.1b timers */
Tid		si_timerid	/* Timer IDl POSIX.1b timers */
Addr		si_adder	/* memory location that caused fault */
Band		si_band		/* band event (was int in glibc 2.3.2 and earlier | now long */
Fd		si_fd		/* file descripter */
Addr_lsb	si_addr_lsb	/* least significant bit of adress (since Linux 2.6.32) */
_____		si_lower	/* lower bound when adress violation occured (since linux 3.19) */
_____		si_upper	/* upper bound when adress violation occured (since linux 3.19) */
_____		si_pkey		/* protection key on PTE that cauded fault (since Linux 4.6 */
Call_addr	si_call_addr	/* Adress of system call instruction (since linux 3.5) */
Syscall		si_syscall	/* number of attempted system call (since linux 3.5) */
Arch		si_arch		/* architecture of attempted system call (since linux 3.5) */