Prints the /proc tracing flags, the pending and held signals, and other /proc status information for each thread in the specified processes.
procflags [ -r ] [ ProcessID ] ...
The /proc filesystem provides a mechanism to control processes. It also gives access to information about the current state of processes and threads, but in binary form. The proctools commands provide ascii reports based on some of the available information.
Most of the commands take a list of process IDs or /proc/ProcessID strings as input. The shell expansion /proc/* can therefore be used to specify all processes in the system.
Each of the proctools commands gathers information from /proc for the specified processes and displays it to the user. The proctools commands like procrun and procstop start and stop a process using the /proc interface.
The information gathered by the commands from /proc is a snapshot of the current state of processes, and therefore can vary at any instant except for stopped processes.
The procflags command prints the /proc tracing flags, the pending and held signals, and other /proc status information for each thread in the specified processes. The machine register contents are printed when option -r is used and the process is stopped on an event of interest. The events of interest are PR_REQUESTED, PR_FAULTED, PR_SYSENTRY, and PR_SYSEXIT as defined in <sys/procfs.h>.
| -r | Displays the current machine registers state if a process is stopped in an event of interest. |
| ProcessID | Specifies the process id. |
procflags 5046The output of this command might look like this:
5046 : -sh data model = _ILP32 flags = PR_FORK /4289: flags = PR_ASLEEP | PR_NOREGS
procflags -r 5040The output of this command might look like this:
5040 : ls data model = _ILP32 flags = PR_FORK /6999: flags = PR_STOPPED | PR_ISTOP why = PR_FAULTED what = FLTBPT what = kfork gpr0 = 0x0 gpr1 = 0x2ff227b0 gpr2 = 0xf0083bec gpr3 = 0x2ff22cb3 gpr4 = 0x11 gpr5 = 0x65 gpr6 = 0x50 gpr7 = 0x0 gpr8 = 0x41707a7c gpr9 = 0x4c4f47 gpr10 = 0x80000000 gpr11 = 0x34e0 gpr12 = 0x0 gpr13 = 0xdeadbeef gpr14 = 0x1 gpr15 = 0x2ff22c0c gpr16 = 0x2ff22c14 gpr17 = 0x0 gpr18 = 0xdeadbeef gpr19 = 0xdeadbeef gpr20 = 0xdeadbeef gpr21 = 0xdeadbeef gpr22 = 0x10 gpr23 = 0xfd gpr24 = 0x2f gpr25 = 0x2ff227f0 gpr26 = 0x0 gpr27 = 0x2ff22d87 gpr28 = 0x2ff22cb3 gpr29 = 0x0 gpr30 = 0x0 gpr31 = 0xf0048260 iar = 0xd01be900 msr = 0x2d032 cr = 0x28222442 lr = 0xd01d9de0 ctr = 0xec xer = 0x0 fpscr = 0x0 fpscrx = 0x0
| /proc | Contains the /proc filesystem. |
The proccred command, procfiles command, procldd command, procmap command, procrun command, procsig command, procstack command, procstop command, proctree command, procwait command, procwdx command.