[PATCH 07/14] prctl.2: Document removal of Intel MPX prctls
From: Dave Martin <Dave.Martin@arm.com>
Date: 2020-05-12 16:39:43
Also in:
linux-arch, linux-man
Subsystem:
the rest · Maintainer:
Linus Torvalds
The Intel MPX API was removed from Linux 5.4. See Linux
commit f240652b6032 ("x86/mpx: Remove MPX APIs")
Document this change.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Thomas Gleixner <redacted>
---
man2/prctl.2 | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/man2/prctl.2 b/man2/prctl.2
index 7a3fc5c..a84fb1d 100644
--- a/man2/prctl.2
+++ b/man2/prctl.2@@ -784,7 +784,7 @@ option enabled. .RE .\" prctl PR_MPX_ENABLE_MANAGEMENT .TP -.BR PR_MPX_ENABLE_MANAGEMENT ", " PR_MPX_DISABLE_MANAGEMENT " (since Linux 3.19) " +.BR PR_MPX_ENABLE_MANAGEMENT ", " PR_MPX_DISABLE_MANAGEMENT " (since Linux 3.19, removed in Linux 5.4; only on x86) " .\" commit fe3d197f84319d3bce379a9c0dc17b1f48ad358c .\" See also http://lwn.net/Articles/582712/ .\" See also https://gcc.gnu.org/wiki/Intel%20MPX%20support%20in%20the%20GCC%20compiler
@@ -859,6 +859,12 @@ had been called. .IP For further information on Intel MPX, see the kernel source file .IR Documentation/x86/intel_mpx.txt . +.IP +.\" commit f240652b6032b48ad7fa35c5e701cc4c8d697c0b +.\" See also https://lkml.kernel.org/r/20190705175321.DB42F0AD@viggo.jf.intel.com +Due to a lack of toolchain support, +.BR PR_MPX_ENABLE_MANAGEMENT " and " PR_MPX_DISABLE_MANAGEMENT +are not supported by Linux 5.4 or later. .\" prctl PR_SET_NAME .TP .BR PR_SET_NAME " (since Linux 2.6.9)"
--
2.1.4
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