summaryrefslogtreecommitdiffstats
path: root/lib/libc/sys/mmap.2
diff options
context:
space:
mode:
authorru <ru@FreeBSD.org>2002-12-19 09:40:28 +0000
committerru <ru@FreeBSD.org>2002-12-19 09:40:28 +0000
commit51fe7c1a888747c57136cc34ec54a93a0487b745 (patch)
treef0781cb8e5be3a35234a6d0c123d6ae11ba70e40 /lib/libc/sys/mmap.2
parent3424a53ebeadf7ab320c37cf93702953cee94efe (diff)
downloadFreeBSD-src-51fe7c1a888747c57136cc34ec54a93a0487b745.zip
FreeBSD-src-51fe7c1a888747c57136cc34ec54a93a0487b745.tar.gz
mdoc(7) police: "The .Fa argument.".
Diffstat (limited to 'lib/libc/sys/mmap.2')
-rw-r--r--lib/libc/sys/mmap.228
1 files changed, 19 insertions, 9 deletions
diff --git a/lib/libc/sys/mmap.2 b/lib/libc/sys/mmap.2
index 05f5b4f..5407968 100644
--- a/lib/libc/sys/mmap.2
+++ b/lib/libc/sys/mmap.2
@@ -93,7 +93,7 @@ Pages may be executed.
.Pp
The
.Fa flags
-parameter specifies the type of the mapped object, mapping options and
+argument specifies the type of the mapped object, mapping options and
whether modifications made to the mapped copy of the page are private
to the process or are to be shared with other references.
Sharing, mapping type and options are specified in the
@@ -109,7 +109,7 @@ The file descriptor used for creating
must be \-1.
The
.Fa offset
-parameter is ignored.
+argument is ignored.
.\".It Dv MAP_FILE
.\"Mapped from a regular file or character-special device memory.
.It Dv MAP_FIXED
@@ -212,7 +212,9 @@ implies
and
.Fa offset
of 0.
+The
.Fa fd
+argument
must be -1 and
.Fa prot
must include at least
@@ -264,7 +266,7 @@ The flag
.Dv PROT_READ
was specified as part of the
.Fa prot
-parameter and
+argument and
.Fa fd
was not open for reading.
The flags
@@ -275,33 +277,39 @@ were specified as part of the
.Fa flags
and
.Fa prot
-parameters and
+argument and
.Fa fd
was not open for writing.
.It Bq Er EBADF
+The
.Fa fd
+argument
is not a valid open file descriptor.
.It Bq Er EINVAL
.Dv MAP_FIXED
was specified and the
.Fa addr
-parameter was not page aligned, or part of the desired address space
+argument was not page aligned, or part of the desired address space
resides out of the valid address space for a user process.
.It Bq Er EINVAL
-.Fa Len
+The
+.Fa len
+argument
was negative.
.It Bq Er EINVAL
.Dv MAP_ANON
was specified and the
.Fa fd
-parameter was not -1.
+argument was not -1.
.It Bq Er EINVAL
.Dv MAP_ANON
has not been specified and
.Fa fd
did not reference a regular or character special file.
.It Bq Er EINVAL
-.Fa Offset
+The
+.Fa offset
+argument
was not page-aligned.
(See
.Sx BUGS
@@ -310,7 +318,7 @@ below.)
.Dv MAP_FIXED
was specified and the
.Fa addr
-parameter was not available.
+argument was not available.
.Dv MAP_ANON
was specified and insufficient memory was available.
The system has reached the per-process mmap limit specified in the
@@ -329,7 +337,9 @@ sysctl.
.Xr getpagesize 3 ,
.Xr make.conf 5
.Sh BUGS
+The
.Fa len
+argument
is limited to 2GB.
Mmapping slightly more than 2GB does not work, but
it is possible to map a window of size (filesize % 2GB) for file sizes
OpenPOWER on IntegriCloud