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authorAndrea Parri <andrea.parri@amarulasolutions.com>2019-01-31 08:08:40 -0800
committerPaul E. McKenney <paulmck@linux.ibm.com>2019-02-12 11:20:08 -0800
commit4c4f3c3321a5a13726f721e2c90a80a92589aeb0 (patch)
tree634feaf1d8bfd527714b02ccb56aaeb17b465691 /tools
parent06a45c3380ca50b0241323a476f2546545e230a6 (diff)
tools/memory-model: Avoid duplicating herdtools versions
Currently, herdtools version information appears no fewer than three times in the LKMM source, which is difficult to maintain. This commit therefore places the required version in one place, namely the tools/memory-model/README file. Signed-off-by: Andrea Parri <andrea.parri@amarulasolutions.com> Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com> Acked-by: Alan Stern <stern@rowland.harvard.edu>
Diffstat (limited to 'tools')
-rw-r--r--tools/memory-model/README8
-rw-r--r--tools/memory-model/linux-kernel.cat2
-rw-r--r--tools/memory-model/lock.cat3
3 files changed, 6 insertions, 7 deletions
diff --git a/tools/memory-model/README b/tools/memory-model/README
index 9d7d4f23503f..2b87f3971548 100644
--- a/tools/memory-model/README
+++ b/tools/memory-model/README
@@ -20,13 +20,17 @@ that litmus test to be exercised within the Linux kernel.
REQUIREMENTS
============
-Version 7.49 of the "herd7" and "klitmus7" tools must be downloaded
-separately:
+Version 7.52 or higher of the "herd7" and "klitmus7" tools must be
+downloaded separately:
https://github.com/herd/herdtools7
See "herdtools7/INSTALL.md" for installation instructions.
+Note that although these tools usually provide backwards compatibility,
+this is not absolutely guaranteed. Therefore, if a later version does
+not work, please try using the exact version called out above.
+
==================
BASIC USAGE: HERD7
diff --git a/tools/memory-model/linux-kernel.cat b/tools/memory-model/linux-kernel.cat
index 95bf45f1215f..8dcb37835b61 100644
--- a/tools/memory-model/linux-kernel.cat
+++ b/tools/memory-model/linux-kernel.cat
@@ -1,7 +1,5 @@
// SPDX-License-Identifier: GPL-2.0+
(*
- * Requires herd version 7.51+6 or higher.
- *
* Copyright (C) 2015 Jade Alglave <j.alglave@ucl.ac.uk>,
* Copyright (C) 2016 Luc Maranget <luc.maranget@inria.fr> for Inria
* Copyright (C) 2017 Alan Stern <stern@rowland.harvard.edu>,
diff --git a/tools/memory-model/lock.cat b/tools/memory-model/lock.cat
index 305ded17e741..a059d1a6d8a2 100644
--- a/tools/memory-model/lock.cat
+++ b/tools/memory-model/lock.cat
@@ -6,9 +6,6 @@
(*
* Generate coherence orders and handle lock operations
- *
- * Warning: spin_is_locked() crashes herd7 versions strictly before 7.48.
- * spin_is_locked() is functional from herd7 version 7.49.
*)
include "cross.cat"