Linux cli command proc_pid_syscall

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command proc_pid_syscall and provides detailed information about the command proc_pid_syscall, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the proc_pid_syscall.

  less than a minute  

NAME 🖥️ proc_pid_syscall 🖥️

currently executed system call

DESCRIPTION

/proc/pid/syscall (since Linux 2.6.27)
This file exposes the system call number and argument registers for the system call currently being executed by the process, followed by the values of the stack pointer and program counter registers. The values of all six argument registers are exposed, although most system calls use fewer registers.

If the process is blocked, but not in a system call, then the file displays -1 in place of the system call number, followed by just the values of the stack pointer and program counter. If process is not blocked, then the file contains just the string “running”.

This file is present only if the kernel was configured with CONFIG_HAVE_ARCH_TRACEHOOK.

Permission to access this file is governed by a ptrace access mode PTRACE_MODE_ATTACH_FSCREDS check; see ptrace(2).

SEE ALSO

proc(5)

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