From: Akira Yokosawa <akiyks@gmail.com>
To: paulmck@linux.vnet.ibm.com, linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, stern@rowland.harvard.edu,
parri.andrea@gmail.com, will.deacon@arm.com,
peterz@infradead.org, boqun.feng@gmail.com, npiggin@gmail.com,
dhowells@redhat.com, j.alglave@ucl.ac.uk, luc.maranget@inria.fr,
Akira Yokosawa <akiyks@gmail.com>,
Patrick Bellasi <patrick.bellasi@arm.com>
Subject: [PATCH] tools/memory-model: Restore compat with herd7 7.47 ("-" -> "_")
Date: Sat, 10 Feb 2018 01:06:53 +0900 [thread overview]
Message-ID: <71d58dec-b76f-8458-1c61-b7d6237634a1@gmail.com> (raw)
In-Reply-To: <df87e89b-7fbe-37a7-42cb-62df74591df4@gmail.com>
>From 9a0de4d75e18ef8e25a1096f88c7a970d9d693f5 Mon Sep 17 00:00:00 2001
From: Akira Yokosawa <akiyks@gmail.com>
Date: Sat, 10 Feb 2018 00:45:25 +0900
Subject: [PATCH] tools/memory-model: Restore compat with herd7 7.47 ("-" -> "_")
As of herd7 7.47, these '-'s are not permitted and end up in
an error:
File "./linux-kernel.def", line 44, characters 29-30:
unexpected '-' (in macros)
Partial revert of commit 2d5fba7782d6 ("linux-kernel*: Make RCU
identifiers match ASPLOS paper") in the repository at
https://github.com/aparri/memory-model can restore the compatibility
with herd7 7.47.
Reported-by: Patrick Bellasi <patrick.bellasi@arm.com>
Suggested-by: Andrea Parri <parri.andrea@gmail.com>
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
---
tools/memory-model/linux-kernel.bell | 20 ++++++++++----------
tools/memory-model/linux-kernel.cat | 8 ++++----
tools/memory-model/linux-kernel.def | 14 +++++++-------
3 files changed, 21 insertions(+), 21 deletions(-)
diff --git a/tools/memory-model/linux-kernel.bell b/tools/memory-model/linux-kernel.bell
index 18885ad..436791b 100644
--- a/tools/memory-model/linux-kernel.bell
+++ b/tools/memory-model/linux-kernel.bell
@@ -25,18 +25,18 @@ enum Barriers = 'wmb (*smp_wmb*) ||
'rmb (*smp_rmb*) ||
'mb (*smp_mb*) ||
'rb_dep (*smp_read_barrier_depends*) ||
- 'rcu-lock (*rcu_read_lock*) ||
- 'rcu-unlock (*rcu_read_unlock*) ||
- 'sync-rcu (*synchronize_rcu*) ||
- 'before-atomic (*smp_mb__before_atomic*) ||
- 'after-atomic (*smp_mb__after_atomic*) ||
- 'after-spinlock (*smp_mb__after_spinlock*)
+ 'rcu_lock (*rcu_read_lock*) ||
+ 'rcu_unlock (*rcu_read_unlock*) ||
+ 'sync_rcu (*synchronize_rcu*) ||
+ 'before_atomic (*smp_mb__before_atomic*) ||
+ 'after_atomic (*smp_mb__after_atomic*) ||
+ 'after_spinlock (*smp_mb__after_spinlock*)
instructions F[Barriers]
(* Compute matching pairs of nested Rcu-lock and Rcu-unlock *)
let matched = let rec
- unmatched-locks = Rcu-lock \ domain(matched)
- and unmatched-unlocks = Rcu-unlock \ range(matched)
+ unmatched-locks = Rcu_lock \ domain(matched)
+ and unmatched-unlocks = Rcu_unlock \ range(matched)
and unmatched = unmatched-locks | unmatched-unlocks
and unmatched-po = [unmatched] ; po ; [unmatched]
and unmatched-locks-to-unlocks =
@@ -46,8 +46,8 @@ let matched = let rec
in matched
(* Validate nesting *)
-flag ~empty Rcu-lock \ domain(matched) as unbalanced-rcu-locking
-flag ~empty Rcu-unlock \ range(matched) as unbalanced-rcu-locking
+flag ~empty Rcu_lock \ domain(matched) as unbalanced-rcu-locking
+flag ~empty Rcu_unlock \ range(matched) as unbalanced-rcu-locking
(* Outermost level of nesting only *)
let crit = matched \ (po^-1 ; matched ; po^-1)
diff --git a/tools/memory-model/linux-kernel.cat b/tools/memory-model/linux-kernel.cat
index f0d27f8..d0085d5 100644
--- a/tools/memory-model/linux-kernel.cat
+++ b/tools/memory-model/linux-kernel.cat
@@ -29,10 +29,10 @@ let rb-dep = [R] ; fencerel(Rb_dep) ; [R]
let rmb = [R \ Noreturn] ; fencerel(Rmb) ; [R \ Noreturn]
let wmb = [W] ; fencerel(Wmb) ; [W]
let mb = ([M] ; fencerel(Mb) ; [M]) |
- ([M] ; fencerel(Before-atomic) ; [RMW] ; po? ; [M]) |
- ([M] ; po? ; [RMW] ; fencerel(After-atomic) ; [M]) |
- ([M] ; po? ; [LKW] ; fencerel(After-spinlock) ; [M])
-let gp = po ; [Sync-rcu] ; po?
+ ([M] ; fencerel(Before_atomic) ; [RMW] ; po? ; [M]) |
+ ([M] ; po? ; [RMW] ; fencerel(After_atomic) ; [M]) |
+ ([M] ; po? ; [LKW] ; fencerel(After_spinlock) ; [M])
+let gp = po ; [Sync_rcu] ; po?
let strong-fence = mb | gp
diff --git a/tools/memory-model/linux-kernel.def b/tools/memory-model/linux-kernel.def
index f5a1eb0..fc08371 100644
--- a/tools/memory-model/linux-kernel.def
+++ b/tools/memory-model/linux-kernel.def
@@ -21,9 +21,9 @@ smp_mb() { __fence{mb} ; }
smp_rmb() { __fence{rmb} ; }
smp_wmb() { __fence{wmb} ; }
smp_read_barrier_depends() { __fence{rb_dep}; }
-smp_mb__before_atomic() { __fence{before-atomic} ; }
-smp_mb__after_atomic() { __fence{after-atomic} ; }
-smp_mb__after_spinlock() { __fence{after-spinlock} ; }
+smp_mb__before_atomic() { __fence{before_atomic} ; }
+smp_mb__after_atomic() { __fence{after_atomic} ; }
+smp_mb__after_spinlock() { __fence{after_spinlock} ; }
// Exchange
xchg(X,V) __xchg{mb}(X,V)
@@ -41,10 +41,10 @@ spin_unlock(X) { __unlock(X) ; }
spin_trylock(X) __trylock(X)
// RCU
-rcu_read_lock() { __fence{rcu-lock}; }
-rcu_read_unlock() { __fence{rcu-unlock};}
-synchronize_rcu() { __fence{sync-rcu}; }
-synchronize_rcu_expedited() { __fence{sync-rcu}; }
+rcu_read_lock() { __fence{rcu_lock}; }
+rcu_read_unlock() { __fence{rcu_unlock};}
+synchronize_rcu() { __fence{sync_rcu}; }
+synchronize_rcu_expedited() { __fence{sync_rcu}; }
// Atomic
atomic_read(X) READ_ONCE(*X)
--
2.7.4
next prev parent reply other threads:[~2018-02-09 16:07 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-09 14:18 [PATCH RFC tools/lkmm] Miscellaneous fixes Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 01/10] tools/memory-model: Clarify the origin/scope of the tool name Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 02/10] MAINTAINERS: Add the Memory Consistency Model subsystem Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 03/10] MAINTAINERS: List file memory-barriers.txt within the LKMM entry Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 04/10] EXP litmus_tests: Add comments explaining tests' purposes Paul E. McKenney
2018-02-09 18:46 ` Alan Stern
2018-02-10 1:05 ` Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 05/10] README: Fix a couple of punctuation errors Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 06/10] EXP MAINTAINERS: Add the "LKMM" acronym Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 07/10] MAINTAINERS: Add Akira Yokosawa as an LKMM reviewer Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 08/10] EXP Remove understore from smp_mb__before_atomic() workings Paul E. McKenney
2018-02-15 22:30 ` Andrea Parri
2018-02-15 22:49 ` Paul E. McKenney
2018-02-15 23:19 ` Andrea Parri
2018-02-15 23:32 ` Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 09/10] EXP Remove underscore from smp_mb__after_atomic() workings Paul E. McKenney
2018-02-09 14:20 ` [PATCH RFC tip/lkmm 10/10] EXP Remove underscores from smp_mb__after_spinlock() workings Paul E. McKenney
2018-02-09 16:02 ` [PATCH RFC tools/lkmm] Miscellaneous fixes Akira Yokosawa
2018-02-09 16:06 ` Akira Yokosawa [this message]
2018-02-09 23:46 ` [PATCH v2] tools/memory-model: Make compat with herd7 7.47 ("-" -> "_") Akira Yokosawa
2018-02-10 1:07 ` Paul E. McKenney
2018-02-10 3:03 ` Akira Yokosawa
2018-02-11 11:51 ` Ingo Molnar
2018-02-13 1:38 ` Paul E. McKenney
2018-02-13 8:32 ` Ingo Molnar
2018-02-14 22:20 ` Akira Yokosawa
2018-02-14 22:52 ` Paul E. McKenney
2018-02-15 15:10 ` Alan Stern
2018-02-15 15:58 ` Trial of conflict resolution of Alan's patch Akira Yokosawa
2018-02-15 17:51 ` Alan Stern
2018-02-15 19:29 ` Paul E. McKenney
2018-02-15 21:51 ` Akira Yokosawa
2018-02-16 15:18 ` Alan Stern
2018-02-16 15:47 ` Andrea Parri
2018-02-16 16:53 ` Paul E. McKenney
2018-02-16 22:22 ` [PATCH] tools/memory-model: remove rb-dep, smp_read_barrier_depends, and lockless_dereference Alan Stern
2018-02-16 23:22 ` Akira Yokosawa
2018-02-17 0:39 ` Paul E. McKenney
2018-02-21 15:00 ` Alan Stern
2018-02-21 16:06 ` Paul E. McKenney
2018-02-21 16:51 ` Ingo Molnar
2018-02-21 17:53 ` Paul E. McKenney
2018-02-21 17:15 ` [PATCH] tools/memory-model: update: " Alan Stern
2018-02-21 17:58 ` Andrea Parri
2018-02-21 18:14 ` Paul E. McKenney
2018-02-21 18:00 ` Paul E. McKenney
2018-02-21 22:29 ` Akira Yokosawa
2018-02-24 3:22 ` Akira Yokosawa
2018-02-24 3:30 ` Paul E. McKenney
2018-02-24 14:36 ` Andrea Parri
2018-02-24 16:49 ` Alan Stern
2018-02-24 18:08 ` Paul E. McKenney
2018-02-24 22:47 ` Akira Yokosawa
2018-02-25 22:33 ` Paul E. McKenney
2018-02-17 3:25 ` [PATCH] tools/memory-model: " Andrea Parri
2018-02-17 15:14 ` Andrea Parri
2018-02-19 17:14 ` Alan Stern
2018-02-19 17:43 ` Peter Zijlstra
2018-02-19 17:44 ` Peter Zijlstra
2018-02-20 14:48 ` Paul E. McKenney
2018-02-20 15:17 ` Andrea Parri
2018-02-20 16:11 ` Paul E. McKenney
2018-02-19 19:41 ` Paul E. McKenney
2018-02-19 20:28 ` Peter Zijlstra
2018-02-20 14:49 ` Paul E. McKenney
2018-02-20 15:11 ` Alan Stern
2018-02-20 16:10 ` Paul E. McKenney
2018-02-20 9:33 ` Andrea Parri
2018-02-20 9:51 ` Peter Zijlstra
2018-02-20 15:38 ` Alan Stern
2018-02-15 22:05 ` Trial of conflict resolution of Alan's patch Andrea Parri
2018-02-15 22:41 ` Paul E. McKenney
2018-02-18 15:46 ` [PATCH v2] tools/memory-model: Make compat with herd7 7.47 ("-" -> "_") Akira Yokosawa
2018-02-20 14:57 ` Paul E. McKenney
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