PR_MEMCNTL(3PROC) Process Control Library Functions PR_MEMCNTL(3PROC)

pr_memcntl
inject memcntl system call into victim process

Process Control Library (libproc, -lproc)
#include <libproc.h>

int
pr_memcntl(struct ps_prochandle *P, caddr_t addr, size_t len, int cmd, caddr_t arg, int attr, int mask);

The pr_memcntl() function injects the memcntl(2) system call into the target process P by means of the agent LWP. If the process handle P is the value NULL then this will be equivalent to calling memcntl(2) on the currently running process.

The arguments addr, len, cmd, arg, attr, and mask have the same meaning as in memcntl(2). See memcntl(2) for the full description and purpose of the memcntl system call and its arguments.

The pr_memcntl() function only works on active processes. Process handles that correspond to core files, zombie processes, or ELF objects do not support system call injection.

Upon successful completion, the pr_memcntl() function's return value is that described in memcntl(2). Otherwise, -1 is returned and errno is set to ENOSYS to indicate that the system call could not be injected.

For the full list of errors see the ERRORS section in memcntl(2).

The pr_memcntl() function will fail if:

An error occurred while trying to invoke the agent LWP and inject a system call in the process handle P or the process handle P does not support system call injection.

Uncommitted

See LOCKING in libproc(3LIB).

memcntl(2), libproc(3LIB), proc(5)
May 11, 2016 OmniOS