memory layout in C on linux

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LEARN ABOUT MINIX

ipcmk

IPCMK(1)							   User Commands							  IPCMK(1)

NAME

       ipcmk - make various IPC resources

SYNOPSIS

       ipcmk [options]

DESCRIPTION

       ipcmk allows you to create shared memory segments, message queues, and semaphore arrays.

OPTIONS

       Resources can be specified with these options:

       -M, --shmem size
	      Create  a  shared  memory  segment of size bytes.  The size argument may be followed by the multiplicative suffixes KiB (=1024), MiB
	      (=1024*1024), and so on for GiB, etc. (the "iB" is optional, e.g., "K" has the same meaning as "KiB") or the suffixes KB (=1000), MB
	      (=1000*1000), and so on for GB, etc.

       -Q, --queue
	      Create a message queue.

       -S, --semaphore number
	      Create a semaphore array with number of elements.

       Other options are:

       -p, --mode mode
	      Access permissions for the resource.  Default is 0644.

       -V, --version
	      Display version information and exit.

       -h, --help
	      Display help text and exit.

SEE ALSO

       ipcrm(1), ipcs(1)

AUTHOR

       Hayden A. James <hayden.james@gmail.com>

AVAILABILITY

       The  ipcmk  command  is	part  of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils
       /util-linux/>.

util-linux							     July 2014								  IPCMK(1)

Programming