proc_pid_syscall(5) — Linux manual page

NAME | DESCRIPTION | SEE ALSO | COLOPHON

proc_pid_syscall(5)        File Formats Manual       proc_pid_syscall(5)

NAME         top

       /proc/pid/syscall - currently executed system call

DESCRIPTION         top

       /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         top

       proc(5)

COLOPHON         top

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Linux man-pages 6.9.1          2024-05-02            proc_pid_syscall(5)