Decode and print process signal masks, given a process id on Linux.
Decodes signal masks (SigCgt, SigIgn, SigBlk, ShdPnd, SigPnd) in /proc/PID/status
To install/build and run.
$ go install -v github.com/r4um/sigmask
$ ${GOPATH:=~/go}/bin/sigmask
Usage
$ sigmask
missing process id or path to status file
Usage: sigmask [flags] pid
Usage: sigmask [flags] proc_status_path
Usage: sigmask [-noname] -mask=MASK
-blocked
Show blocked
-caught
Show caught
-ignored
Show ignored
-mask string
Decode mask
-noname
Do not print signal name
-pending
Show pending
-shpending
Show shared pending
Examples
$ sigmask $$
SigPnd 0000000000000000
ShdPnd 0000000000000000
SigBlk 0000000000010000 SIGCHLD
SigIgn 0000000000384004 SIGQUIT,SIGTERM,SIGTSTP,SIGTTIN,SIGTTOU
SigCgt 000000004b813efb SIGHUP,SIGINT,SIGILL,SIGTRAP,SIGABRT,SIGBUS,SIGFPE,SIGUSR1,SIGSEGV,SIGUSR2,SIGPIPE,SIGALRM,SIGCHLD,SIGXCPU,SIGXFSZ,SIGVTALRM,SIGWINCH,SIGSYS
$ sigmask 1
SigPnd 0000000000000000
ShdPnd 0000000000000000
SigBlk 7fefc1fe28014a03 SIGHUP,SIGINT,SIGUSR1,SIGUSR2,SIGTERM,SIGCHLD,SIGWINCH,SIGPWR,SIGRTMIN,SIGRTMIN+1,SIGRTMIN+2,SIGRTMIN+3,SIGRTMIN+4,SIGRTMIN+5,SIGRTMIN+6,SIGRTMIN+7,SIGRTMIN+13,SIGRTMIN+14,SIGRTMIN+15,SIGRTMAX-14,SIGRTMAX-13,SIGRTMAX-12,SIGRTMAX-10,SIGRTMAX-9,SIGRTMAX-8,SIGRTMAX-7,SIGRTMAX-6,SIGRTMAX-5,SIGRTMAX-4,SIGRTMAX-3,SIGRTMAX-2,SIGRTMAX-1
SigIgn 0000000000001000 SIGPIPE
SigCgt 00000000000004ec SIGQUIT,SIGILL,SIGABRT,SIGBUS,SIGFPE,SIGSEGV
$ sigmask /proc/25/status
SigPnd 0000000000000000
ShdPnd 0000000000000000
SigBlk 0000000000000000
SigIgn ffffffffffffffff SIGHUP,SIGINT,SIGQUIT,SIGILL,SIGTRAP,SIGABRT,SIGBUS,SIGFPE,SIGKILL,SIGUSR1,SIGSEGV,SIGUSR2,SIGPIPE,SIGALRM,SIGTERM,SIGSTKFLT,SIGCHLD,SIGCONT,SIGSTOP,SIGTSTP,SIGTTIN,SIGTTOU,SIGURG,SIGXCPU,SIGXFSZ,SIGVTALRM,SIGPROF,SIGWINCH,SIGIO,SIGPWR,SIGSYS,SIGRTMIN-2,SIGRTMIN-1,SIGRTMIN,SIGRTMIN+1,SIGRTMIN+2,SIGRTMIN+3,SIGRTMIN+4,SIGRTMIN+5,SIGRTMIN+6,SIGRTMIN+7,SIGRTMIN+8,SIGRTMIN+9,SIGRTMIN+10,SIGRTMIN+11,SIGRTMIN+12,SIGRTMIN+13,SIGRTMIN+14,SIGRTMIN+15,SIGRTMAX-14,SIGRTMAX-13,SIGRTMAX-12,SIGRTMAX-11,SIGRTMAX-10,SIGRTMAX-9,SIGRTMAX-8,SIGRTMAX-7,SIGRTMAX-6,SIGRTMAX-5,SIGRTMAX-4,SIGRTMAX-3,SIGRTMAX-2,SIGRTMAX-1,SIGRTMAX
SigCgt 0000000000000000