diff options
| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2013-04-17 07:55:02 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2013-04-17 07:55:02 +0200 |
| commit | 18cdd0aca2c377ff2155df6342f36870bd29a90c (patch) | |
| tree | 06632f24b64ac8bed2029357610806413a1f1789 /man5 | |
| parent | b4f89985b9326f9e20bb0495422088de808b91e7 (diff) | |
proc.5: Minor fixes to Pavel's patch
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man5')
| -rw-r--r-- | man5/proc.5 | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/man5/proc.5 b/man5/proc.5 index 1bfc63cc..43468943 100644 --- a/man5/proc.5 +++ b/man5/proc.5 @@ -59,7 +59,7 @@ .\" to see what information could be imported from that file .\" into this file. .\" -.TH PROC 5 2013-03-15 "Linux" "Linux Programmer's Manual" +.TH PROC 5 2013-04-17 "Linux" "Linux Programmer's Manual" .SH NAME proc \- process information pseudo-file system .SH DESCRIPTION @@ -288,34 +288,41 @@ Thus the example command above could be written as: .in .TP .IR /proc/[pid]/map_files/ " (since kernel 3.3) -This subdirectory contains entries corresponding to memory mapped +.\" commit 640708a2cff7f81e246243b0073c66e6ece7e53e +This subdirectory contains entries corresponding to memory-mapped files (see .BR mmap (2)). -Entries are named by memory region start and end pair, -and are symbolic links to the files themselves. Like this +Entries are named by memory region start and end +address pair (expressed as hexadecimal numbers), +and are symbolic links to the mapped files themselves. +Here is an example, with the output wrapped and reformatted to fit on an 80-column display: .in +4n .nf .RB "$" " ls -l /proc/self/map_files/" -lr--------. 1 root root 64 Apr 16 21:31 3252e00000-3252e20000 -> /usr/lib64/ld-2.15.so +lr\-\-\-\-\-\-\-\-. 1 root root 64 Apr 16 21:31 + 3252e00000\-3252e20000 \-> /usr/lib64/ld-2.15.so \&... .fi .in Although these entries are present for memory regions that were -mapped with +mapped with the .BR MAP_FILE -flag, the way anonymous shared memory (regions created with +flag, the way anonymous shared memory (regions created with the .B MAP_ANON | MAP_SHARED flags) is implemented in Linux -makes such regions also appear on this directory. In that case -the target file would be the deleted /dev/zero one: +means that such regions also appear on this directory. +Here is an example where the target file is the deleted +.I /dev/zero +one: .in +4n .nf .RB -lrw-------. 1 root root 64 Apr 16 21:33 7fc075d2f000-7fc075e6f000 -> /dev/zero (deleted) +lrw\-\-\-\-\-\-\-. 1 root root 64 Apr 16 21:33 + 7fc075d2f000\-7fc075e6f000 \-> /dev/zero (deleted) .fi .in |