pmap.1 (2011 09)

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pmap(1) pmap(1)

NAME

pmap, pﬁles - displays process address information and open ﬁle descriptors

SYNOPSIS

pmap [-o options ] pid1 [pid2 ...]

pfiles pid1 [pid2...]

DESCRIPTION

pmap prints the address space information of a process.

pfiles prints information about all open ﬁle descriptors of a process. If ﬁle descriptor corresponds to a

ﬁle, then pfiles prints the fstat(2) and fcntl(2) information. If the ﬁle descriptor corresponds to a

socket, then

pfiles prints socket related info, such as the socket type, socket family, and protocol fam-

ily. In the case of AF_INET and AF_INET6 family of sockets, information about the peer host is also

printed.

pmap Options

The information printed by

pmap can be controlled by the

-o option. The argument to -o can be a

comma-separated set of arguments given below:

mlck Display the size data locked in memory for each mapped object.

name Display the map name. This ﬁeld can contain the following data.

anonymous if the object is mapped as MAP_ANONYMOUS

stack, rsestack if the object mapped is the stack segment of the process.

text The object mapped is the text segment of the program.

data The object mapped is the data segment of the program.

filename The object is mapped from a ﬁle. If the ﬁle name cannot be resolved,

then the inode number and the device ID of the ﬁle is displayed. Also

see the WARNINGS section below.

shared_memory The object mapped is mapped to shared memory.

Other map names include:

nulldref, uarea, graphics, dma_graphics, and io.

offset Display the offset of each mapped object.

perm Specify access permission for each mapped object.

rsz Display the resident size of each mapped object.

space Display the space ID of each mapped object.

swap Display the swap allocated for each mapped object.

szhint Display the maximum size of a page that can be allocated for the object.

type Indicate the type of data managed by each mapped object. The values include,

SC(n) Shared code, with n indicating the number of processes sharing the mapped object.

PC Private code.

SD(n) Shared data, with n indicating the number of processes sharing the mapped object.

PD Private data.

vsz Display the virtual size of each mapped object.

Since the name of the ﬁle can be of variable length, use the name argument as the last argument to the

-o option to ensure proper indentation of other ﬁelds. If no -o option is speciﬁed, pmap prints the fol-

lowing ﬁelds by default: offset, rsz, type, perm, and name.

EXTERNAL INFLUENCES

Environment Variables

LANG is not speciﬁed or is null, it defaults to C (see lang(5)).

When the

PMAP_SHMID variable is set to 1, the System V shared memory mapping is reported with the

shared memory identiﬁer as [shmid=<shmid_value>].

HP-UX 11i Version 3: September 2011 − 1 − Hewlett-Packard Company 1

Summary of content (2 pages)

PAGE 1
pmap(1) pmap(1) NAME pmap, pfiles - displays process address information and open file descriptors SYNOPSIS pmap [-o options ] pid1 [pid2 ...] pfiles pid1 [pid2 ...] DESCRIPTION pmap prints the address space information of a process. pfiles prints information about all open file descriptors of a process. If file descriptor corresponds to a file, then pfiles prints the fstat(2) and fcntl(2) information.
PAGE 2
pmap(1) pmap(1) EXAMPLES This pmap command prints the virtual address, the resident memory size, and the name of each object mapped for processes with process ID 100 and 200: pmap -ooffset,rsz,name 100 200 This pfiles command prints information on open file descriptors of processes with process ID 100 and 200: pfiles 100 200 WARNINGS pmap and pfiles depend on DNLC to resolve the file names.