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authorRuslan Ermilov <ru@FreeBSD.org>2006-10-16 12:30:51 +0000
committerRuslan Ermilov <ru@FreeBSD.org>2006-10-16 12:30:51 +0000
commit349bb8fd723bb32fb7a0770d3c79d2a526663c9b (patch)
tree7aae6894f2355ff26f462956094d156ed372b770 /lib
parentfe920eb96d47a12671b44d79997c6e36db2d441a (diff)
Notes
Diffstat (limited to 'lib')
-rw-r--r--lib/libc/i386/sys/i386_get_ldt.230
1 files changed, 15 insertions, 15 deletions
diff --git a/lib/libc/i386/sys/i386_get_ldt.2 b/lib/libc/i386/sys/i386_get_ldt.2
index 135d8b8d4c53..9a971e4ce184 100644
--- a/lib/libc/i386/sys/i386_get_ldt.2
+++ b/lib/libc/i386/sys/i386_get_ldt.2
@@ -32,7 +32,7 @@
.\" from: @(#)fork.2 6.5 (Berkeley) 3/10/91
.\" $FreeBSD$
.\"
-.Dd September 20, 1993
+.Dd October 14, 2006
.Dt I386_GET_LDT 2
.Os
.Sh NAME
@@ -52,24 +52,24 @@
The
.Fn i386_get_ldt
system call
-will return the list of i386 descriptors that the process has in its
+returns a list of the i386 descriptors in the current process'
LDT.
The
.Fn i386_set_ldt
system call
-will set a list of i386 descriptors for the current process in its
+sets a list of i386 descriptors in the current process'
LDT.
-Both routines accept a starting selector number
-.Fa start_sel ,
-an array of memory that
-will contain the descriptors to be set or returned
-.Fa descs ,
-and the number of entries to set or return
-.Fa num_sels .
+For both routines,
+.Fa start_sel
+specifies the index of the selector in the LDT at which to begin and
+.Fa descs
+points to an array of
+.Fa num_sels
+descriptors to be set or returned.
.Pp
-The argument
+Each entry in the
.Fa descs
-can be either segment_descriptor or gate_descriptor and are defined in
+array can be either a segment_descriptor or gate_descriptor and are defined in
.In i386/segments.h .
These structures are defined by the architecture
as disjoint bit-fields, so care must be taken in constructing them.
@@ -113,9 +113,9 @@ returns the number of descriptors currently in the LDT.
The
.Fn i386_set_ldt
system call
-returns the first selector set.
-In the case when a descriptor is allocated by the kernel, its number will
-be returned.
+returns the first selector set on success.
+If the kernel allocated a descriptor in the LDT,
+the allocated index is returned.
Otherwise, a value of -1 is returned and the global
variable
.Va errno