prctl.2: Minor fixes to Dave Martin's patch

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man2/prctl.2 b/man2/prctl.2
index 313ff37462450f46513cac8cf87e5d221fb6e54e..534306285b5d751ad99906093a8e0f616a6f1b20 100644 (file)
--- a/man2/prctl.2
+++ b/man2/prctl.2
@@ -2,6 +2,7 @@
 .\" and Copyright (C) 2002, 2006, 2008, 2012, 2013 Michael Kerrisk <mtk.manpages@gmail.com>
 .\" and Copyright Guillem Jover <guillem@hadrons.org>
 .\" and Copyright (C) 2014 Dave Hansen / Intel
+.\" and Copyright (c) 2020 Dave Martin <Dave.Martin@arm.com>
 .\"
 .\" %%%LICENSE_START(VERBATIM)
 .\" Permission is granted to make and distribute verbatim copies of this
@@ -1526,7 +1527,7 @@ before Linux 5.3).
 .\" commit 63f0c60379650d82250f22e4cf4137ef3dc4f43d
 .TP
 .BR PR_SET_TAGGED_ADDR_CTRL " (since Linux 5.4, only on arm64)"
-Controls support for passing tagged userspace addresses to the kernel
+Controls support for passing tagged user-space addresses to the kernel
 (i.e., addresses where bits 56\(em63 are not all zero).
 .IP
 The level of support is selected by
@@ -1546,7 +1547,7 @@ may be tagged, with the exceptions summarized below.
 .RE
 .IP
 The remaining arguments
-.IR arg3 ", " arg4 " and " arg5
+.IR arg3 ", " arg4 ", and " arg5
 must all be zero.
 .\" Enforcement added in
 .\" commit 3e91ec89f527b9870fe42dcbdb74fd389d123a95
@@ -1561,21 +1562,21 @@ is unrecognized,
 or if this feature is unsupported by the kernel
 or disabled via
 .IR /proc/sys/abi/tagged_addr_disabled ,
-the call fails with
+the call fails with the error
 .BR EINVAL .
 .IP
 In particular, if
 .BR prctl ( PR_SET_TAGGED_ADDR_CTRL ,
 0, 0, 0, 0)
 fails with
-.B EINVAL
+.BR EINVAL ,
 then all addresses passed to the kernel must be untagged.
 .IP
 Irrespective of which mode is set,
 addresses passed to certain interfaces
 must always be untagged:
 .RS
-.IP \(em
+.IP \(bu 2
 .BR brk (2),
 .BR mmap (2),
 .BR shmat (2),
@@ -1588,7 +1589,7 @@ argument of
 (Prior to Linux 5.6 these accepted tagged addresses,
 but the behaviour may not be what you expect.
 Don't rely on it.)
-.IP \(em
+.IP \(bu
 \(oqpolymorphic\(cq interfaces
 that accept pointers to arbitrary types cast to a
 .I void *
@@ -1627,7 +1628,7 @@ This call is primarily intended for use by the run-time environment.
 A successful
 .B PR_SET_TAGGED_ADDR_CTRL
 call elsewhere may crash the calling process.
-The conditions for using it safely are complex and system-dependent;
+The conditions for using it safely are complex and system-dependent.
 Don't use it unless you know what you are doing.
 .\" prctl PR_GET_TAGGED_ADDR_CTRL
 .\" commit 63f0c60379650d82250f22e4cf4137ef3dc4f43d
@@ -1637,7 +1638,7 @@ Returns the current tagged address mode
 for the calling thread.
 .IP
 Arguments
-.IR arg2 ", " arg3 ", " arg4 " and " arg5
+.IR arg2 ", " arg3 ", " arg4 ", and " arg5
 must all be zero.
 .IP
 If the arguments are invalid