Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"The main changes in this cycle were:
- Add CONFIG_REFCOUNT_FULL=y to allow the disabling of the 'full'
(robustness checked) refcount_t implementation with slightly lower
runtime overhead. (Kees Cook)
The lighter weight variant is the default. The two variants use the
same API. Having this variant was a precondition by some
maintainers to merge refcount_t cleanups.
- Add lockdep support for rtmutexes (Peter Zijlstra)
- liblockdep fixes and improvements (Sasha Levin, Ben Hutchings)
- ... misc fixes and improvements"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
locking/refcount: Remove the half-implemented refcount_sub() API
locking/refcount: Create unchecked atomic_t implementation
locking/rtmutex: Don't initialize lockdep when not required
locking/selftest: Add RT-mutex support
locking/selftest: Remove the bad unlock ordering test
rt_mutex: Add lockdep annotations
MAINTAINERS: Claim atomic*_t maintainership
locking/x86: Remove the unused atomic_inc_short() methd
tools/lib/lockdep: Remove private kernel headers
tools/lib/lockdep: Hide liblockdep output from test results
tools/lib/lockdep: Add dummy current_gfp_context()
tools/include: Add IS_ERR_OR_NULL to err.h
tools/lib/lockdep: Add empty __is_[module,kernel]_percpu_address
tools/lib/lockdep: Include err.h
tools/include: Add (mostly) empty include/linux/sched/mm.h
tools/lib/lockdep: Use LDFLAGS
tools/lib/lockdep: Remove double-quotes from soname
tools/lib/lockdep: Fix object file paths used in an out-of-tree build
tools/lib/lockdep: Fix compilation for 4.11
tools/lib/lockdep: Don't mix fd-based and stream IO
...
diff --git a/MAINTAINERS b/MAINTAINERS
index 503f80a..d357695e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2322,6 +2322,15 @@
F: drivers/input/touchscreen/atmel_mxt_ts.c
F: include/linux/platform_data/atmel_mxt_ts.h
+ATOMIC INFRASTRUCTURE
+M: Will Deacon <will.deacon@arm.com>
+M: Peter Zijlstra <peterz@infradead.org>
+R: Boqun Feng <boqun.feng@gmail.com>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: arch/*/include/asm/atomic*.h
+F: include/*/atomic*.h
+
ATTO EXPRESSSAS SAS/SATA RAID SCSI DRIVER
M: Bradley Grove <linuxdrivers@attotech.com>
L: linux-scsi@vger.kernel.org
@@ -7555,7 +7564,7 @@
F: drivers/ata/sata_promise.*
LIBLOCKDEP
-M: Sasha Levin <sasha.levin@oracle.com>
+M: Sasha Levin <alexander.levin@verizon.com>
S: Maintained
F: tools/lib/lockdep/
diff --git a/arch/Kconfig b/arch/Kconfig
index 6c00e5b..f76b214 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -867,4 +867,13 @@
config ARCH_WANT_RELAX_ORDER
bool
+config REFCOUNT_FULL
+ bool "Perform full reference count validation at the expense of speed"
+ help
+ Enabling this switches the refcounting infrastructure from a fast
+ unchecked atomic_t implementation to a fully state checked
+ implementation, which can be (slightly) slower but provides protections
+ against various use-after-free conditions that can be used in
+ security flaw exploits.
+
source "kernel/gcov/Kconfig"
diff --git a/arch/tile/lib/atomic_asm_32.S b/arch/tile/lib/atomic_asm_32.S
index 1a70e6c..94709ab 100644
--- a/arch/tile/lib/atomic_asm_32.S
+++ b/arch/tile/lib/atomic_asm_32.S
@@ -24,8 +24,7 @@
* has an opportunity to return -EFAULT to the user if needed.
* The 64-bit routines just return a "long long" with the value,
* since they are only used from kernel space and don't expect to fault.
- * Support for 16-bit ops is included in the framework but we don't provide
- * any (x86_64 has an atomic_inc_short(), so we might want to some day).
+ * Support for 16-bit ops is included in the framework but we don't provide any.
*
* Note that the caller is advised to issue a suitable L1 or L2
* prefetch on the address being manipulated to avoid extra stalls.
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index caa5798..33380b8 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -246,19 +246,6 @@ static __always_inline int __atomic_add_unless(atomic_t *v, int a, int u)
return c;
}
-/**
- * atomic_inc_short - increment of a short integer
- * @v: pointer to type int
- *
- * Atomically adds 1 to @v
- * Returns the new value of @u
- */
-static __always_inline short int atomic_inc_short(short int *v)
-{
- asm(LOCK_PREFIX "addw $1, %0" : "+m" (*v));
- return *v;
-}
-
#ifdef CONFIG_X86_32
# include <asm/atomic64_32.h>
#else
diff --git a/include/linux/refcount.h b/include/linux/refcount.h
index b34aa64..591792c 100644
--- a/include/linux/refcount.h
+++ b/include/linux/refcount.h
@@ -41,6 +41,7 @@ static inline unsigned int refcount_read(const refcount_t *r)
return atomic_read(&r->refs);
}
+#ifdef CONFIG_REFCOUNT_FULL
extern __must_check bool refcount_add_not_zero(unsigned int i, refcount_t *r);
extern void refcount_add(unsigned int i, refcount_t *r);
@@ -48,10 +49,45 @@ extern __must_check bool refcount_inc_not_zero(refcount_t *r);
extern void refcount_inc(refcount_t *r);
extern __must_check bool refcount_sub_and_test(unsigned int i, refcount_t *r);
-extern void refcount_sub(unsigned int i, refcount_t *r);
extern __must_check bool refcount_dec_and_test(refcount_t *r);
extern void refcount_dec(refcount_t *r);
+#else
+static inline __must_check bool refcount_add_not_zero(unsigned int i, refcount_t *r)
+{
+ return atomic_add_unless(&r->refs, i, 0);
+}
+
+static inline void refcount_add(unsigned int i, refcount_t *r)
+{
+ atomic_add(i, &r->refs);
+}
+
+static inline __must_check bool refcount_inc_not_zero(refcount_t *r)
+{
+ return atomic_add_unless(&r->refs, 1, 0);
+}
+
+static inline void refcount_inc(refcount_t *r)
+{
+ atomic_inc(&r->refs);
+}
+
+static inline __must_check bool refcount_sub_and_test(unsigned int i, refcount_t *r)
+{
+ return atomic_sub_and_test(i, &r->refs);
+}
+
+static inline __must_check bool refcount_dec_and_test(refcount_t *r)
+{
+ return atomic_dec_and_test(&r->refs);
+}
+
+static inline void refcount_dec(refcount_t *r)
+{
+ atomic_dec(&r->refs);
+}
+#endif /* CONFIG_REFCOUNT_FULL */
extern __must_check bool refcount_dec_if_one(refcount_t *r);
extern __must_check bool refcount_dec_not_one(refcount_t *r);
diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h
index 1abba5c..44fd002 100644
--- a/include/linux/rtmutex.h
+++ b/include/linux/rtmutex.h
@@ -37,6 +37,9 @@ struct rt_mutex {
int line;
void *magic;
#endif
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+ struct lockdep_map dep_map;
+#endif
};
struct rt_mutex_waiter;
@@ -58,19 +61,33 @@ struct hrtimer_sleeper;
#ifdef CONFIG_DEBUG_RT_MUTEXES
# define __DEBUG_RT_MUTEX_INITIALIZER(mutexname) \
, .name = #mutexname, .file = __FILE__, .line = __LINE__
-# define rt_mutex_init(mutex) __rt_mutex_init(mutex, __func__)
+
+# define rt_mutex_init(mutex) \
+do { \
+ static struct lock_class_key __key; \
+ __rt_mutex_init(mutex, __func__, &__key); \
+} while (0)
+
extern void rt_mutex_debug_task_free(struct task_struct *tsk);
#else
# define __DEBUG_RT_MUTEX_INITIALIZER(mutexname)
-# define rt_mutex_init(mutex) __rt_mutex_init(mutex, NULL)
+# define rt_mutex_init(mutex) __rt_mutex_init(mutex, NULL, NULL)
# define rt_mutex_debug_task_free(t) do { } while (0)
#endif
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+#define __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname) \
+ , .dep_map = { .name = #mutexname }
+#else
+#define __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname)
+#endif
+
#define __RT_MUTEX_INITIALIZER(mutexname) \
{ .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(mutexname.wait_lock) \
, .waiters = RB_ROOT \
, .owner = NULL \
- __DEBUG_RT_MUTEX_INITIALIZER(mutexname)}
+ __DEBUG_RT_MUTEX_INITIALIZER(mutexname) \
+ __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname)}
#define DEFINE_RT_MUTEX(mutexname) \
struct rt_mutex mutexname = __RT_MUTEX_INITIALIZER(mutexname)
@@ -86,7 +103,7 @@ static inline int rt_mutex_is_locked(struct rt_mutex *lock)
return lock->owner != NULL;
}
-extern void __rt_mutex_init(struct rt_mutex *lock, const char *name);
+extern void __rt_mutex_init(struct rt_mutex *lock, const char *name, struct lock_class_key *key);
extern void rt_mutex_destroy(struct rt_mutex *lock);
extern void rt_mutex_lock(struct rt_mutex *lock);
diff --git a/kernel/locking/rtmutex-debug.c b/kernel/locking/rtmutex-debug.c
index 58e366a..ac35e64 100644
--- a/kernel/locking/rtmutex-debug.c
+++ b/kernel/locking/rtmutex-debug.c
@@ -166,12 +166,16 @@ void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter)
memset(waiter, 0x22, sizeof(*waiter));
}
-void debug_rt_mutex_init(struct rt_mutex *lock, const char *name)
+void debug_rt_mutex_init(struct rt_mutex *lock, const char *name, struct lock_class_key *key)
{
/*
* Make sure we are not reinitializing a held lock:
*/
debug_check_no_locks_freed((void *)lock, sizeof(*lock));
lock->name = name;
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+ lockdep_init_map(&lock->dep_map, name, key, 0);
+#endif
}
diff --git a/kernel/locking/rtmutex-debug.h b/kernel/locking/rtmutex-debug.h
index b585af9..5078c6d 100644
--- a/kernel/locking/rtmutex-debug.h
+++ b/kernel/locking/rtmutex-debug.h
@@ -11,7 +11,7 @@
extern void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter);
extern void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter);
-extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name);
+extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name, struct lock_class_key *key);
extern void debug_rt_mutex_lock(struct rt_mutex *lock);
extern void debug_rt_mutex_unlock(struct rt_mutex *lock);
extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock,
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 28cd09e..780698950 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1481,6 +1481,7 @@ void __sched rt_mutex_lock(struct rt_mutex *lock)
{
might_sleep();
+ mutex_acquire(&lock->dep_map, 0, 0, _RET_IP_);
rt_mutex_fastlock(lock, TASK_UNINTERRUPTIBLE, rt_mutex_slowlock);
}
EXPORT_SYMBOL_GPL(rt_mutex_lock);
@@ -1496,9 +1497,16 @@ EXPORT_SYMBOL_GPL(rt_mutex_lock);
*/
int __sched rt_mutex_lock_interruptible(struct rt_mutex *lock)
{
+ int ret;
+
might_sleep();
- return rt_mutex_fastlock(lock, TASK_INTERRUPTIBLE, rt_mutex_slowlock);
+ mutex_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ ret = rt_mutex_fastlock(lock, TASK_INTERRUPTIBLE, rt_mutex_slowlock);
+ if (ret)
+ mutex_release(&lock->dep_map, 1, _RET_IP_);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(rt_mutex_lock_interruptible);
@@ -1526,11 +1534,18 @@ int __sched rt_mutex_futex_trylock(struct rt_mutex *lock)
int
rt_mutex_timed_lock(struct rt_mutex *lock, struct hrtimer_sleeper *timeout)
{
+ int ret;
+
might_sleep();
- return rt_mutex_timed_fastlock(lock, TASK_INTERRUPTIBLE, timeout,
+ mutex_acquire(&lock->dep_map, 0, 0, _RET_IP_);
+ ret = rt_mutex_timed_fastlock(lock, TASK_INTERRUPTIBLE, timeout,
RT_MUTEX_MIN_CHAINWALK,
rt_mutex_slowlock);
+ if (ret)
+ mutex_release(&lock->dep_map, 1, _RET_IP_);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(rt_mutex_timed_lock);
@@ -1547,10 +1562,16 @@ EXPORT_SYMBOL_GPL(rt_mutex_timed_lock);
*/
int __sched rt_mutex_trylock(struct rt_mutex *lock)
{
+ int ret;
+
if (WARN_ON_ONCE(in_irq() || in_nmi() || in_serving_softirq()))
return 0;
- return rt_mutex_fasttrylock(lock, rt_mutex_slowtrylock);
+ ret = rt_mutex_fasttrylock(lock, rt_mutex_slowtrylock);
+ if (ret)
+ mutex_acquire(&lock->dep_map, 0, 1, _RET_IP_);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(rt_mutex_trylock);
@@ -1561,6 +1582,7 @@ EXPORT_SYMBOL_GPL(rt_mutex_trylock);
*/
void __sched rt_mutex_unlock(struct rt_mutex *lock)
{
+ mutex_release(&lock->dep_map, 1, _RET_IP_);
rt_mutex_fastunlock(lock, rt_mutex_slowunlock);
}
EXPORT_SYMBOL_GPL(rt_mutex_unlock);
@@ -1620,7 +1642,6 @@ void rt_mutex_destroy(struct rt_mutex *lock)
lock->magic = NULL;
#endif
}
-
EXPORT_SYMBOL_GPL(rt_mutex_destroy);
/**
@@ -1632,14 +1653,16 @@ EXPORT_SYMBOL_GPL(rt_mutex_destroy);
*
* Initializing of a locked rt lock is not allowed
*/
-void __rt_mutex_init(struct rt_mutex *lock, const char *name)
+void __rt_mutex_init(struct rt_mutex *lock, const char *name,
+ struct lock_class_key *key)
{
lock->owner = NULL;
raw_spin_lock_init(&lock->wait_lock);
lock->waiters = RB_ROOT;
lock->waiters_leftmost = NULL;
- debug_rt_mutex_init(lock, name);
+ if (name && key)
+ debug_rt_mutex_init(lock, name, key);
}
EXPORT_SYMBOL_GPL(__rt_mutex_init);
@@ -1660,7 +1683,7 @@ EXPORT_SYMBOL_GPL(__rt_mutex_init);
void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
struct task_struct *proxy_owner)
{
- __rt_mutex_init(lock, NULL);
+ __rt_mutex_init(lock, NULL, NULL);
debug_rt_mutex_proxy_lock(lock, proxy_owner);
rt_mutex_set_owner(lock, proxy_owner);
}
diff --git a/kernel/locking/rtmutex.h b/kernel/locking/rtmutex.h
index 6607802..5c253ca 100644
--- a/kernel/locking/rtmutex.h
+++ b/kernel/locking/rtmutex.h
@@ -17,7 +17,7 @@
#define debug_rt_mutex_proxy_lock(l,p) do { } while (0)
#define debug_rt_mutex_proxy_unlock(l) do { } while (0)
#define debug_rt_mutex_unlock(l) do { } while (0)
-#define debug_rt_mutex_init(m, n) do { } while (0)
+#define debug_rt_mutex_init(m, n, k) do { } while (0)
#define debug_rt_mutex_deadlock(d, a ,l) do { } while (0)
#define debug_rt_mutex_print_deadlock(w) do { } while (0)
#define debug_rt_mutex_reset_waiter(w) do { } while (0)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index a7a751a..9c5d40a 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1052,6 +1052,7 @@
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
+ select DEBUG_RT_MUTEXES if RT_MUTEXES
select LOCKDEP
help
This feature will check whether any held lock (spinlock, rwlock,
@@ -1067,6 +1068,7 @@
select LOCKDEP
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
+ select DEBUG_RT_MUTEXES if RT_MUTEXES
select DEBUG_LOCK_ALLOC
select TRACE_IRQFLAGS
default n
@@ -1121,6 +1123,7 @@
select LOCKDEP
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
+ select DEBUG_RT_MUTEXES if RT_MUTEXES
select DEBUG_LOCK_ALLOC
default n
help
diff --git a/lib/locking-selftest-rtmutex.h b/lib/locking-selftest-rtmutex.h
new file mode 100644
index 0000000..e3cb839
--- /dev/null
+++ b/lib/locking-selftest-rtmutex.h
@@ -0,0 +1,11 @@
+#undef LOCK
+#define LOCK RTL
+
+#undef UNLOCK
+#define UNLOCK RTU
+
+#undef RLOCK
+#undef WLOCK
+
+#undef INIT
+#define INIT RTI
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index f3a217e..6f2b135 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -21,6 +21,7 @@
#include <linux/interrupt.h>
#include <linux/debug_locks.h>
#include <linux/irqflags.h>
+#include <linux/rtmutex.h>
/*
* Change this to 1 if you want to see the failure printouts:
@@ -46,6 +47,7 @@ __setup("debug_locks_verbose=", setup_debug_locks_verbose);
#define LOCKTYPE_MUTEX 0x4
#define LOCKTYPE_RWSEM 0x8
#define LOCKTYPE_WW 0x10
+#define LOCKTYPE_RTMUTEX 0x20
static struct ww_acquire_ctx t, t2;
static struct ww_mutex o, o2, o3;
@@ -74,6 +76,15 @@ static DECLARE_RWSEM(rwsem_B);
static DECLARE_RWSEM(rwsem_C);
static DECLARE_RWSEM(rwsem_D);
+#ifdef CONFIG_RT_MUTEXES
+
+static DEFINE_RT_MUTEX(rtmutex_A);
+static DEFINE_RT_MUTEX(rtmutex_B);
+static DEFINE_RT_MUTEX(rtmutex_C);
+static DEFINE_RT_MUTEX(rtmutex_D);
+
+#endif
+
/*
* Locks that we initialize dynamically as well so that
* e.g. X1 and X2 becomes two instances of the same class,
@@ -108,6 +119,17 @@ static DECLARE_RWSEM(rwsem_Y2);
static DECLARE_RWSEM(rwsem_Z1);
static DECLARE_RWSEM(rwsem_Z2);
+#ifdef CONFIG_RT_MUTEXES
+
+static DEFINE_RT_MUTEX(rtmutex_X1);
+static DEFINE_RT_MUTEX(rtmutex_X2);
+static DEFINE_RT_MUTEX(rtmutex_Y1);
+static DEFINE_RT_MUTEX(rtmutex_Y2);
+static DEFINE_RT_MUTEX(rtmutex_Z1);
+static DEFINE_RT_MUTEX(rtmutex_Z2);
+
+#endif
+
/*
* non-inlined runtime initializers, to let separate locks share
* the same lock-class:
@@ -129,6 +151,17 @@ INIT_CLASS_FUNC(Z)
static void init_shared_classes(void)
{
+#ifdef CONFIG_RT_MUTEXES
+ static struct lock_class_key rt_X, rt_Y, rt_Z;
+
+ __rt_mutex_init(&rtmutex_X1, __func__, &rt_X);
+ __rt_mutex_init(&rtmutex_X2, __func__, &rt_X);
+ __rt_mutex_init(&rtmutex_Y1, __func__, &rt_Y);
+ __rt_mutex_init(&rtmutex_Y2, __func__, &rt_Y);
+ __rt_mutex_init(&rtmutex_Z1, __func__, &rt_Z);
+ __rt_mutex_init(&rtmutex_Z2, __func__, &rt_Z);
+#endif
+
init_class_X(&lock_X1, &rwlock_X1, &mutex_X1, &rwsem_X1);
init_class_X(&lock_X2, &rwlock_X2, &mutex_X2, &rwsem_X2);
@@ -193,6 +226,10 @@ static void init_shared_classes(void)
#define MU(x) mutex_unlock(&mutex_##x)
#define MI(x) mutex_init(&mutex_##x)
+#define RTL(x) rt_mutex_lock(&rtmutex_##x)
+#define RTU(x) rt_mutex_unlock(&rtmutex_##x)
+#define RTI(x) rt_mutex_init(&rtmutex_##x)
+
#define WSL(x) down_write(&rwsem_##x)
#define WSU(x) up_write(&rwsem_##x)
@@ -264,6 +301,11 @@ GENERATE_TESTCASE(AA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(AA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(AA_rtmutex);
+#endif
+
#undef E
/*
@@ -345,6 +387,11 @@ GENERATE_TESTCASE(ABBA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABBA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABBA_rtmutex);
+#endif
+
#undef E
/*
@@ -373,6 +420,11 @@ GENERATE_TESTCASE(ABBCCA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABBCCA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABBCCA_rtmutex);
+#endif
+
#undef E
/*
@@ -401,6 +453,11 @@ GENERATE_TESTCASE(ABCABC_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABCABC_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABCABC_rtmutex);
+#endif
+
#undef E
/*
@@ -430,6 +487,11 @@ GENERATE_TESTCASE(ABBCCDDA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABBCCDDA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABBCCDDA_rtmutex);
+#endif
+
#undef E
/*
@@ -458,6 +520,11 @@ GENERATE_TESTCASE(ABCDBDDA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABCDBDDA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABCDBDDA_rtmutex);
+#endif
+
#undef E
/*
@@ -486,6 +553,11 @@ GENERATE_TESTCASE(ABCDBCDA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABCDBCDA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABCDBCDA_rtmutex);
+#endif
+
#undef E
/*
@@ -513,33 +585,10 @@ GENERATE_TESTCASE(double_unlock_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(double_unlock_rsem)
-#undef E
-
-/*
- * Bad unlock ordering:
- */
-#define E() \
- \
- LOCK(A); \
- LOCK(B); \
- UNLOCK(A); /* fail */ \
- UNLOCK(B);
-
-/*
- * 6 testcases:
- */
-#include "locking-selftest-spin.h"
-GENERATE_TESTCASE(bad_unlock_order_spin)
-#include "locking-selftest-wlock.h"
-GENERATE_TESTCASE(bad_unlock_order_wlock)
-#include "locking-selftest-rlock.h"
-GENERATE_TESTCASE(bad_unlock_order_rlock)
-#include "locking-selftest-mutex.h"
-GENERATE_TESTCASE(bad_unlock_order_mutex)
-#include "locking-selftest-wsem.h"
-GENERATE_TESTCASE(bad_unlock_order_wsem)
-#include "locking-selftest-rsem.h"
-GENERATE_TESTCASE(bad_unlock_order_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(double_unlock_rtmutex);
+#endif
#undef E
@@ -567,6 +616,11 @@ GENERATE_TESTCASE(init_held_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(init_held_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(init_held_rtmutex);
+#endif
+
#undef E
/*
@@ -916,6 +970,9 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion_soft)
# define I_MUTEX(x) lockdep_reset_lock(&mutex_##x.dep_map)
# define I_RWSEM(x) lockdep_reset_lock(&rwsem_##x.dep_map)
# define I_WW(x) lockdep_reset_lock(&x.dep_map)
+#ifdef CONFIG_RT_MUTEXES
+# define I_RTMUTEX(x) lockdep_reset_lock(&rtmutex_##x.dep_map)
+#endif
#else
# define I_SPINLOCK(x)
# define I_RWLOCK(x)
@@ -924,12 +981,23 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion_soft)
# define I_WW(x)
#endif
+#ifndef I_RTMUTEX
+# define I_RTMUTEX(x)
+#endif
+
+#ifdef CONFIG_RT_MUTEXES
+#define I2_RTMUTEX(x) rt_mutex_init(&rtmutex_##x)
+#else
+#define I2_RTMUTEX(x)
+#endif
+
#define I1(x) \
do { \
I_SPINLOCK(x); \
I_RWLOCK(x); \
I_MUTEX(x); \
I_RWSEM(x); \
+ I_RTMUTEX(x); \
} while (0)
#define I2(x) \
@@ -938,6 +1006,7 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion_soft)
rwlock_init(&rwlock_##x); \
mutex_init(&mutex_##x); \
init_rwsem(&rwsem_##x); \
+ I2_RTMUTEX(x); \
} while (0)
static void reset_locks(void)
@@ -1013,6 +1082,12 @@ static void dotest(void (*testcase_fn)(void), int expected, int lockclass_mask)
reset_locks();
}
+#ifdef CONFIG_RT_MUTEXES
+#define dotest_rt(fn, e, m) dotest((fn), (e), (m))
+#else
+#define dotest_rt(fn, e, m)
+#endif
+
static inline void print_testname(const char *testname)
{
printk("%33s:", testname);
@@ -1050,6 +1125,7 @@ static inline void print_testname(const char *testname)
dotest(name##_mutex, FAILURE, LOCKTYPE_MUTEX); \
dotest(name##_wsem, FAILURE, LOCKTYPE_RWSEM); \
dotest(name##_rsem, FAILURE, LOCKTYPE_RWSEM); \
+ dotest_rt(name##_rtmutex, FAILURE, LOCKTYPE_RTMUTEX); \
pr_cont("\n");
#define DO_TESTCASE_6_SUCCESS(desc, name) \
@@ -1060,6 +1136,7 @@ static inline void print_testname(const char *testname)
dotest(name##_mutex, SUCCESS, LOCKTYPE_MUTEX); \
dotest(name##_wsem, SUCCESS, LOCKTYPE_RWSEM); \
dotest(name##_rsem, SUCCESS, LOCKTYPE_RWSEM); \
+ dotest_rt(name##_rtmutex, SUCCESS, LOCKTYPE_RTMUTEX); \
pr_cont("\n");
/*
@@ -1073,6 +1150,7 @@ static inline void print_testname(const char *testname)
dotest(name##_mutex, FAILURE, LOCKTYPE_MUTEX); \
dotest(name##_wsem, FAILURE, LOCKTYPE_RWSEM); \
dotest(name##_rsem, FAILURE, LOCKTYPE_RWSEM); \
+ dotest_rt(name##_rtmutex, FAILURE, LOCKTYPE_RTMUTEX); \
pr_cont("\n");
#define DO_TESTCASE_2I(desc, name, nr) \
@@ -1825,7 +1903,6 @@ void locking_selftest(void)
DO_TESTCASE_6R("A-B-C-D-B-C-D-A deadlock", ABCDBCDA);
DO_TESTCASE_6("double unlock", double_unlock);
DO_TESTCASE_6("initialize held", init_held);
- DO_TESTCASE_6_SUCCESS("bad unlock order", bad_unlock_order);
printk(" --------------------------------------------------------------------------\n");
print_testname("recursive read-lock");
diff --git a/lib/refcount.c b/lib/refcount.c
index 9f90678..5d0582a 100644
--- a/lib/refcount.c
+++ b/lib/refcount.c
@@ -37,6 +37,8 @@
#include <linux/refcount.h>
#include <linux/bug.h>
+#ifdef CONFIG_REFCOUNT_FULL
+
/**
* refcount_add_not_zero - add a value to a refcount unless it is 0
* @i: the value to add to the refcount
@@ -225,6 +227,7 @@ void refcount_dec(refcount_t *r)
WARN_ONCE(refcount_dec_and_test(r), "refcount_t: decrement hit 0; leaking memory.\n");
}
EXPORT_SYMBOL(refcount_dec);
+#endif /* CONFIG_REFCOUNT_FULL */
/**
* refcount_dec_if_one - decrement a refcount if it is 1
diff --git a/tools/Makefile b/tools/Makefile
index c8a90d0..221e1ce 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -19,6 +19,7 @@
@echo ' kvm_stat - top-like utility for displaying kvm statistics'
@echo ' leds - LEDs tools'
@echo ' lguest - a minimal 32-bit x86 hypervisor'
+ @echo ' liblockdep - user-space wrapper for kernel locking-validator'
@echo ' net - misc networking tools'
@echo ' perf - Linux performance measurement and analysis tool'
@echo ' selftests - various kernel selftests'
@@ -89,7 +90,7 @@
kvm_stat: FORCE
$(call descend,kvm/$@)
-all: acpi cgroup cpupower gpio hv firewire lguest \
+all: acpi cgroup cpupower gpio hv firewire lguest liblockdep \
perf selftests turbostat usb \
virtio vm net x86_energy_perf_policy \
tmon freefall objtool kvm_stat
@@ -103,6 +104,9 @@
cgroup_install firewire_install gpio_install hv_install lguest_install perf_install usb_install virtio_install vm_install net_install objtool_install:
$(call descend,$(@:_install=),install)
+liblockdep_install:
+ $(call descend,lib/lockdep,install)
+
selftests_install:
$(call descend,testing/$(@:_install=),install)
@@ -119,7 +123,7 @@
$(call descend,kvm/$(@:_install=),install)
install: acpi_install cgroup_install cpupower_install gpio_install \
- hv_install firewire_install lguest_install \
+ hv_install firewire_install lguest_install liblockdep_install \
perf_install selftests_install turbostat_install usb_install \
virtio_install vm_install net_install x86_energy_perf_policy_install \
tmon_install freefall_install objtool_install kvm_stat_install
diff --git a/tools/include/asm/sections.h b/tools/include/asm/sections.h
new file mode 100644
index 0000000..a80643d
--- /dev/null
+++ b/tools/include/asm/sections.h
@@ -0,0 +1,4 @@
+#ifndef __TOOLS_INCLUDE_LINUX_ASM_SECTIONS_H
+#define __TOOLS_INCLUDE_LINUX_ASM_SECTIONS_H
+
+#endif /* __TOOLS_INCLUDE_LINUX_ASM_SECTIONS_H */
diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h
index 1aecad3..969db19 100644
--- a/tools/include/linux/bitops.h
+++ b/tools/include/linux/bitops.h
@@ -61,4 +61,14 @@ static inline unsigned fls_long(unsigned long l)
return fls64(l);
}
+/**
+ * rol32 - rotate a 32-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u32 rol32(__u32 word, unsigned int shift)
+{
+ return (word << shift) | (word >> ((-shift) & 31));
+}
+
#endif
diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h
index 23299d7..ef6ab90 100644
--- a/tools/include/linux/compiler.h
+++ b/tools/include/linux/compiler.h
@@ -45,6 +45,10 @@
# define __maybe_unused __attribute__((unused))
#endif
+#ifndef __used
+# define __used __attribute__((__unused__))
+#endif
+
#ifndef __packed
# define __packed __attribute__((__packed__))
#endif
@@ -65,6 +69,14 @@
# define unlikely(x) __builtin_expect(!!(x), 0)
#endif
+#ifndef __init
+# define __init
+#endif
+
+#ifndef noinline
+# define noinline
+#endif
+
#define uninitialized_var(x) x = *(&(x))
#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
diff --git a/tools/lib/lockdep/uinclude/linux/debug_locks.h b/tools/include/linux/debug_locks.h
similarity index 74%
rename from tools/lib/lockdep/uinclude/linux/debug_locks.h
rename to tools/include/linux/debug_locks.h
index f38eb64..61cc7f5 100644
--- a/tools/lib/lockdep/uinclude/linux/debug_locks.h
+++ b/tools/include/linux/debug_locks.h
@@ -3,8 +3,9 @@
#include <stddef.h>
#include <linux/compiler.h>
+#include <asm/bug.h>
-#define DEBUG_LOCKS_WARN_ON(x) (x)
+#define DEBUG_LOCKS_WARN_ON(x) WARN_ON(x)
extern bool debug_locks;
extern bool debug_locks_silent;
diff --git a/tools/include/linux/delay.h b/tools/include/linux/delay.h
new file mode 100644
index 0000000..55aa417
--- /dev/null
+++ b/tools/include/linux/delay.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_INCLUDE_LINUX_DELAY_H
+#define _TOOLS_INCLUDE_LINUX_DELAY_H
+
+#endif /* _TOOLS_INCLUDE_LINUX_DELAY_H */
diff --git a/tools/include/linux/err.h b/tools/include/linux/err.h
index bdc3dd8..abf0478 100644
--- a/tools/include/linux/err.h
+++ b/tools/include/linux/err.h
@@ -46,4 +46,9 @@ static inline bool __must_check IS_ERR(__force const void *ptr)
return IS_ERR_VALUE((unsigned long)ptr);
}
+static inline bool __must_check IS_ERR_OR_NULL(__force const void *ptr)
+{
+ return unlikely(!ptr) || IS_ERR_VALUE((unsigned long)ptr);
+}
+
#endif /* _LINUX_ERR_H */
diff --git a/tools/include/linux/ftrace.h b/tools/include/linux/ftrace.h
new file mode 100644
index 0000000..949f541
--- /dev/null
+++ b/tools/include/linux/ftrace.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_INCLUDE_LINUX_FTRACE_H
+#define _TOOLS_INCLUDE_LINUX_FTRACE_H
+
+#endif /* _TOOLS_INCLUDE_LINUX_FTRACE_H */
diff --git a/tools/include/linux/gfp.h b/tools/include/linux/gfp.h
new file mode 100644
index 0000000..2203075
--- /dev/null
+++ b/tools/include/linux/gfp.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_INCLUDE_LINUX_GFP_H
+#define _TOOLS_INCLUDE_LINUX_GFP_H
+
+#endif /* _TOOLS_INCLUDE_LINUX_GFP_H */
diff --git a/tools/lib/lockdep/uinclude/linux/hardirq.h b/tools/include/linux/hardirq.h
similarity index 100%
rename from tools/lib/lockdep/uinclude/linux/hardirq.h
rename to tools/include/linux/hardirq.h
diff --git a/tools/include/linux/interrupt.h b/tools/include/linux/interrupt.h
new file mode 100644
index 0000000..6be25bb
--- /dev/null
+++ b/tools/include/linux/interrupt.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_INCLUDE_LINUX_INTERRUPT_H
+#define _TOOLS_INCLUDE_LINUX_INTERRUPT_H
+
+#endif /* _TOOLS_INCLUDE_LINUX_INTERRUPT_H */
diff --git a/tools/lib/lockdep/uinclude/linux/irqflags.h b/tools/include/linux/irqflags.h
similarity index 84%
rename from tools/lib/lockdep/uinclude/linux/irqflags.h
rename to tools/include/linux/irqflags.h
index 6cc296f..df77669 100644
--- a/tools/lib/lockdep/uinclude/linux/irqflags.h
+++ b/tools/include/linux/irqflags.h
@@ -17,19 +17,19 @@
#define raw_local_irq_disable() do { } while (0)
#define raw_local_irq_enable() do { } while (0)
#define raw_local_irq_save(flags) ((flags) = 0)
-#define raw_local_irq_restore(flags) do { } while (0)
+#define raw_local_irq_restore(flags) ((void)(flags))
#define raw_local_save_flags(flags) ((flags) = 0)
-#define raw_irqs_disabled_flags(flags) do { } while (0)
+#define raw_irqs_disabled_flags(flags) ((void)(flags))
#define raw_irqs_disabled() 0
#define raw_safe_halt()
#define local_irq_enable() do { } while (0)
#define local_irq_disable() do { } while (0)
#define local_irq_save(flags) ((flags) = 0)
-#define local_irq_restore(flags) do { } while (0)
+#define local_irq_restore(flags) ((void)(flags))
#define local_save_flags(flags) ((flags) = 0)
#define irqs_disabled() (1)
-#define irqs_disabled_flags(flags) (0)
+#define irqs_disabled_flags(flags) ((void)(flags), 0)
#define safe_halt() do { } while (0)
#define trace_lock_release(x, y)
diff --git a/tools/include/linux/jhash.h b/tools/include/linux/jhash.h
new file mode 100644
index 0000000..348c6f4
--- /dev/null
+++ b/tools/include/linux/jhash.h
@@ -0,0 +1,175 @@
+#ifndef _LINUX_JHASH_H
+#define _LINUX_JHASH_H
+
+/* jhash.h: Jenkins hash support.
+ *
+ * Copyright (C) 2006. Bob Jenkins (bob_jenkins@burtleburtle.net)
+ *
+ * http://burtleburtle.net/bob/hash/
+ *
+ * These are the credits from Bob's sources:
+ *
+ * lookup3.c, by Bob Jenkins, May 2006, Public Domain.
+ *
+ * These are functions for producing 32-bit hashes for hash table lookup.
+ * hashword(), hashlittle(), hashlittle2(), hashbig(), mix(), and final()
+ * are externally useful functions. Routines to test the hash are included
+ * if SELF_TEST is defined. You can use this free for any purpose. It's in
+ * the public domain. It has no warranty.
+ *
+ * Copyright (C) 2009-2010 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
+ *
+ * I've modified Bob's hash to be useful in the Linux kernel, and
+ * any bugs present are my fault.
+ * Jozsef
+ */
+#include <linux/bitops.h>
+#include <linux/unaligned/packed_struct.h>
+
+/* Best hash sizes are of power of two */
+#define jhash_size(n) ((u32)1<<(n))
+/* Mask the hash value, i.e (value & jhash_mask(n)) instead of (value % n) */
+#define jhash_mask(n) (jhash_size(n)-1)
+
+/* __jhash_mix -- mix 3 32-bit values reversibly. */
+#define __jhash_mix(a, b, c) \
+{ \
+ a -= c; a ^= rol32(c, 4); c += b; \
+ b -= a; b ^= rol32(a, 6); a += c; \
+ c -= b; c ^= rol32(b, 8); b += a; \
+ a -= c; a ^= rol32(c, 16); c += b; \
+ b -= a; b ^= rol32(a, 19); a += c; \
+ c -= b; c ^= rol32(b, 4); b += a; \
+}
+
+/* __jhash_final - final mixing of 3 32-bit values (a,b,c) into c */
+#define __jhash_final(a, b, c) \
+{ \
+ c ^= b; c -= rol32(b, 14); \
+ a ^= c; a -= rol32(c, 11); \
+ b ^= a; b -= rol32(a, 25); \
+ c ^= b; c -= rol32(b, 16); \
+ a ^= c; a -= rol32(c, 4); \
+ b ^= a; b -= rol32(a, 14); \
+ c ^= b; c -= rol32(b, 24); \
+}
+
+/* An arbitrary initial parameter */
+#define JHASH_INITVAL 0xdeadbeef
+
+/* jhash - hash an arbitrary key
+ * @k: sequence of bytes as key
+ * @length: the length of the key
+ * @initval: the previous hash, or an arbitray value
+ *
+ * The generic version, hashes an arbitrary sequence of bytes.
+ * No alignment or length assumptions are made about the input key.
+ *
+ * Returns the hash value of the key. The result depends on endianness.
+ */
+static inline u32 jhash(const void *key, u32 length, u32 initval)
+{
+ u32 a, b, c;
+ const u8 *k = key;
+
+ /* Set up the internal state */
+ a = b = c = JHASH_INITVAL + length + initval;
+
+ /* All but the last block: affect some 32 bits of (a,b,c) */
+ while (length > 12) {
+ a += __get_unaligned_cpu32(k);
+ b += __get_unaligned_cpu32(k + 4);
+ c += __get_unaligned_cpu32(k + 8);
+ __jhash_mix(a, b, c);
+ length -= 12;
+ k += 12;
+ }
+ /* Last block: affect all 32 bits of (c) */
+ /* All the case statements fall through */
+ switch (length) {
+ case 12: c += (u32)k[11]<<24;
+ case 11: c += (u32)k[10]<<16;
+ case 10: c += (u32)k[9]<<8;
+ case 9: c += k[8];
+ case 8: b += (u32)k[7]<<24;
+ case 7: b += (u32)k[6]<<16;
+ case 6: b += (u32)k[5]<<8;
+ case 5: b += k[4];
+ case 4: a += (u32)k[3]<<24;
+ case 3: a += (u32)k[2]<<16;
+ case 2: a += (u32)k[1]<<8;
+ case 1: a += k[0];
+ __jhash_final(a, b, c);
+ case 0: /* Nothing left to add */
+ break;
+ }
+
+ return c;
+}
+
+/* jhash2 - hash an array of u32's
+ * @k: the key which must be an array of u32's
+ * @length: the number of u32's in the key
+ * @initval: the previous hash, or an arbitray value
+ *
+ * Returns the hash value of the key.
+ */
+static inline u32 jhash2(const u32 *k, u32 length, u32 initval)
+{
+ u32 a, b, c;
+
+ /* Set up the internal state */
+ a = b = c = JHASH_INITVAL + (length<<2) + initval;
+
+ /* Handle most of the key */
+ while (length > 3) {
+ a += k[0];
+ b += k[1];
+ c += k[2];
+ __jhash_mix(a, b, c);
+ length -= 3;
+ k += 3;
+ }
+
+ /* Handle the last 3 u32's: all the case statements fall through */
+ switch (length) {
+ case 3: c += k[2];
+ case 2: b += k[1];
+ case 1: a += k[0];
+ __jhash_final(a, b, c);
+ case 0: /* Nothing left to add */
+ break;
+ }
+
+ return c;
+}
+
+
+/* __jhash_nwords - hash exactly 3, 2 or 1 word(s) */
+static inline u32 __jhash_nwords(u32 a, u32 b, u32 c, u32 initval)
+{
+ a += initval;
+ b += initval;
+ c += initval;
+
+ __jhash_final(a, b, c);
+
+ return c;
+}
+
+static inline u32 jhash_3words(u32 a, u32 b, u32 c, u32 initval)
+{
+ return __jhash_nwords(a, b, c, initval + JHASH_INITVAL + (3 << 2));
+}
+
+static inline u32 jhash_2words(u32 a, u32 b, u32 initval)
+{
+ return __jhash_nwords(a, b, 0, initval + JHASH_INITVAL + (2 << 2));
+}
+
+static inline u32 jhash_1word(u32 a, u32 initval)
+{
+ return __jhash_nwords(a, 0, 0, initval + JHASH_INITVAL + (1 << 2));
+}
+
+#endif /* _LINUX_JHASH_H */
diff --git a/tools/lib/lockdep/uinclude/linux/kallsyms.h b/tools/include/linux/kallsyms.h
similarity index 89%
rename from tools/lib/lockdep/uinclude/linux/kallsyms.h
rename to tools/include/linux/kallsyms.h
index b0f2dbd..582cc1e 100644
--- a/tools/lib/lockdep/uinclude/linux/kallsyms.h
+++ b/tools/include/linux/kallsyms.h
@@ -3,6 +3,7 @@
#include <linux/kernel.h>
#include <stdio.h>
+#include <unistd.h>
#define KSYM_NAME_LEN 128
@@ -24,7 +25,7 @@ static inline void print_ip_sym(unsigned long ip)
name = backtrace_symbols((void **)&ip, 1);
- printf("%s\n", *name);
+ dprintf(STDOUT_FILENO, "%s\n", *name);
free(name);
}
diff --git a/tools/lib/lockdep/uinclude/linux/kern_levels.h b/tools/include/linux/kern_levels.h
similarity index 100%
rename from tools/lib/lockdep/uinclude/linux/kern_levels.h
rename to tools/include/linux/kern_levels.h
diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h
index 73ccc48..801b927 100644
--- a/tools/include/linux/kernel.h
+++ b/tools/include/linux/kernel.h
@@ -32,6 +32,7 @@
(type *)((char *)__mptr - offsetof(type, member)); })
#endif
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
#ifndef max
@@ -89,4 +90,7 @@ int scnprintf(char * buf, size_t size, const char * fmt, ...);
#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
#define round_down(x, y) ((x) & ~__round_mask(x, y))
+#define current_gfp_context(k) 0
+#define synchronize_sched()
+
#endif
diff --git a/tools/lib/lockdep/uinclude/linux/kmemcheck.h b/tools/include/linux/kmemcheck.h
similarity index 100%
rename from tools/lib/lockdep/uinclude/linux/kmemcheck.h
rename to tools/include/linux/kmemcheck.h
diff --git a/tools/include/linux/linkage.h b/tools/include/linux/linkage.h
new file mode 100644
index 0000000..bc763d5
--- /dev/null
+++ b/tools/include/linux/linkage.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_INCLUDE_LINUX_LINKAGE_H
+#define _TOOLS_INCLUDE_LINUX_LINKAGE_H
+
+#endif /* _TOOLS_INCLUDE_LINUX_LINKAGE_H */
diff --git a/tools/lib/lockdep/uinclude/linux/lockdep.h b/tools/include/linux/lockdep.h
similarity index 63%
rename from tools/lib/lockdep/uinclude/linux/lockdep.h
rename to tools/include/linux/lockdep.h
index c808c7d..8da3e8e 100644
--- a/tools/lib/lockdep/uinclude/linux/lockdep.h
+++ b/tools/include/linux/lockdep.h
@@ -7,8 +7,15 @@
#include <limits.h>
#include <linux/utsname.h>
#include <linux/compiler.h>
+#include <linux/export.h>
+#include <linux/kern_levels.h>
+#include <linux/err.h>
+#include <linux/rcu.h>
+#include <linux/list.h>
+#include <linux/hardirq.h>
+#include <unistd.h>
-#define MAX_LOCK_DEPTH 2000UL
+#define MAX_LOCK_DEPTH 63UL
#define asmlinkage
#define __visible
@@ -29,31 +36,32 @@ extern struct task_struct *__curr(void);
#define current (__curr())
-#define debug_locks_off() 1
+static inline int debug_locks_off(void)
+{
+ return 1;
+}
+
#define task_pid_nr(tsk) ((tsk)->pid)
#define KSYM_NAME_LEN 128
-#define printk printf
+#define printk(...) dprintf(STDOUT_FILENO, __VA_ARGS__)
+#define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
+#define pr_warn pr_err
#define list_del_rcu list_del
#define atomic_t unsigned long
#define atomic_inc(x) ((*(x))++)
-static struct new_utsname *init_utsname(void)
-{
- static struct new_utsname n = (struct new_utsname) {
- .release = "liblockdep",
- .version = LIBLOCKDEP_VERSION,
- };
-
- return &n;
-}
-
#define print_tainted() ""
#define static_obj(x) 1
#define debug_show_all_locks()
extern void debug_check_no_locks_held(void);
+static __used bool __is_kernel_percpu_address(unsigned long addr, void *can_addr)
+{
+ return false;
+}
+
#endif
diff --git a/tools/include/linux/module.h b/tools/include/linux/module.h
new file mode 100644
index 0000000..07055db
--- /dev/null
+++ b/tools/include/linux/module.h
@@ -0,0 +1,11 @@
+#ifndef _LIBLOCKDEP_LINUX_MODULE_H_
+#define _LIBLOCKDEP_LINUX_MODULE_H_
+
+#define module_param(name, type, perm)
+
+static inline bool __is_module_percpu_address(unsigned long addr, unsigned long *can_addr)
+{
+ return false;
+}
+
+#endif
diff --git a/tools/include/linux/mutex.h b/tools/include/linux/mutex.h
new file mode 100644
index 0000000..a8180d2
--- /dev/null
+++ b/tools/include/linux/mutex.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_INCLUDE_LINUX_MUTEX_H
+#define _TOOLS_INCLUDE_LINUX_MUTEX_H
+
+#endif /* _TOOLS_INCLUDE_LINUX_MUTEX_H */
diff --git a/tools/include/linux/proc_fs.h b/tools/include/linux/proc_fs.h
new file mode 100644
index 0000000..8b3b03b
--- /dev/null
+++ b/tools/include/linux/proc_fs.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_INCLUDE_LINUX_PROC_FS_H
+#define _TOOLS_INCLUDE_LINUX_PROC_FS_H
+
+#endif /* _TOOLS_INCLUDE_LINUX_PROC_FS_H */
diff --git a/tools/lib/lockdep/uinclude/linux/rcu.h b/tools/include/linux/rcu.h
similarity index 76%
rename from tools/lib/lockdep/uinclude/linux/rcu.h
rename to tools/include/linux/rcu.h
index 042ee8e..5080649 100644
--- a/tools/lib/lockdep/uinclude/linux/rcu.h
+++ b/tools/include/linux/rcu.h
@@ -18,4 +18,7 @@ static inline bool rcu_is_watching(void)
return false;
}
+#define rcu_assign_pointer(p, v) ((p) = (v))
+#define RCU_INIT_POINTER(p, v) p=(v)
+
#endif
diff --git a/tools/include/linux/sched/clock.h b/tools/include/linux/sched/clock.h
new file mode 100644
index 0000000..5837d17
--- /dev/null
+++ b/tools/include/linux/sched/clock.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_PERF_LINUX_SCHED_CLOCK_H
+#define _TOOLS_PERF_LINUX_SCHED_CLOCK_H
+
+#endif /* _TOOLS_PERF_LINUX_SCHED_CLOCK_H */
diff --git a/tools/include/linux/sched/mm.h b/tools/include/linux/sched/mm.h
new file mode 100644
index 0000000..c8d9f19
--- /dev/null
+++ b/tools/include/linux/sched/mm.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_PERF_LINUX_SCHED_MM_H
+#define _TOOLS_PERF_LINUX_SCHED_MM_H
+
+#endif /* _TOOLS_PERF_LINUX_SCHED_MM_H */
diff --git a/tools/include/linux/sched/task.h b/tools/include/linux/sched/task.h
new file mode 100644
index 0000000..a97890ec
--- /dev/null
+++ b/tools/include/linux/sched/task.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_PERF_LINUX_SCHED_TASK_H
+#define _TOOLS_PERF_LINUX_SCHED_TASK_H
+
+#endif /* _TOOLS_PERF_LINUX_SCHED_TASK_H */
diff --git a/tools/include/linux/seq_file.h b/tools/include/linux/seq_file.h
new file mode 100644
index 0000000..102fd92
--- /dev/null
+++ b/tools/include/linux/seq_file.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_INCLUDE_LINUX_SEQ_FILE_H
+#define _TOOLS_INCLUDE_LINUX_SEQ_FILE_H
+
+#endif /* _TOOLS_INCLUDE_LINUX_SEQ_FILE_H */
diff --git a/tools/include/linux/spinlock.h b/tools/include/linux/spinlock.h
index 58397dc..417cda4 100644
--- a/tools/include/linux/spinlock.h
+++ b/tools/include/linux/spinlock.h
@@ -1,5 +1,31 @@
+#ifndef __LINUX_SPINLOCK_H_
+#define __LINUX_SPINLOCK_H_
+
+#include <pthread.h>
+#include <stdbool.h>
+
#define spinlock_t pthread_mutex_t
#define DEFINE_SPINLOCK(x) pthread_mutex_t x = PTHREAD_MUTEX_INITIALIZER;
#define spin_lock_irqsave(x, f) (void)f, pthread_mutex_lock(x)
#define spin_unlock_irqrestore(x, f) (void)f, pthread_mutex_unlock(x)
+
+#define arch_spinlock_t pthread_mutex_t
+#define __ARCH_SPIN_LOCK_UNLOCKED PTHREAD_MUTEX_INITIALIZER
+
+static inline void arch_spin_lock(arch_spinlock_t *mutex)
+{
+ pthread_mutex_lock(mutex);
+}
+
+static inline void arch_spin_unlock(arch_spinlock_t *mutex)
+{
+ pthread_mutex_unlock(mutex);
+}
+
+static inline bool arch_spin_is_locked(arch_spinlock_t *mutex)
+{
+ return true;
+}
+
+#endif
diff --git a/tools/lib/lockdep/uinclude/linux/stacktrace.h b/tools/include/linux/stacktrace.h
similarity index 100%
rename from tools/lib/lockdep/uinclude/linux/stacktrace.h
rename to tools/include/linux/stacktrace.h
diff --git a/tools/include/linux/unaligned/packed_struct.h b/tools/include/linux/unaligned/packed_struct.h
new file mode 100644
index 0000000..c0d817d
--- /dev/null
+++ b/tools/include/linux/unaligned/packed_struct.h
@@ -0,0 +1,46 @@
+#ifndef _LINUX_UNALIGNED_PACKED_STRUCT_H
+#define _LINUX_UNALIGNED_PACKED_STRUCT_H
+
+#include <linux/kernel.h>
+
+struct __una_u16 { u16 x; } __packed;
+struct __una_u32 { u32 x; } __packed;
+struct __una_u64 { u64 x; } __packed;
+
+static inline u16 __get_unaligned_cpu16(const void *p)
+{
+ const struct __una_u16 *ptr = (const struct __una_u16 *)p;
+ return ptr->x;
+}
+
+static inline u32 __get_unaligned_cpu32(const void *p)
+{
+ const struct __una_u32 *ptr = (const struct __una_u32 *)p;
+ return ptr->x;
+}
+
+static inline u64 __get_unaligned_cpu64(const void *p)
+{
+ const struct __una_u64 *ptr = (const struct __una_u64 *)p;
+ return ptr->x;
+}
+
+static inline void __put_unaligned_cpu16(u16 val, void *p)
+{
+ struct __una_u16 *ptr = (struct __una_u16 *)p;
+ ptr->x = val;
+}
+
+static inline void __put_unaligned_cpu32(u32 val, void *p)
+{
+ struct __una_u32 *ptr = (struct __una_u32 *)p;
+ ptr->x = val;
+}
+
+static inline void __put_unaligned_cpu64(u64 val, void *p)
+{
+ struct __una_u64 *ptr = (struct __una_u64 *)p;
+ ptr->x = val;
+}
+
+#endif /* _LINUX_UNALIGNED_PACKED_STRUCT_H */
diff --git a/tools/include/trace/events/lock.h b/tools/include/trace/events/lock.h
new file mode 100644
index 0000000..5b15fd5
--- /dev/null
+++ b/tools/include/trace/events/lock.h
@@ -0,0 +1,4 @@
+#ifndef _TOOLS_INCLUDE_TRACE_EVENTS_LOCK_H
+#define _TOOLS_INCLUDE_TRACE_EVENTS_LOCK_H
+
+#endif /* _TOOLS_INCLUDE_TRACE_EVENTS_LOCK_H */
diff --git a/tools/lib/lockdep/Makefile b/tools/lib/lockdep/Makefile
index 3bc0ef9..ed9ace5 100644
--- a/tools/lib/lockdep/Makefile
+++ b/tools/lib/lockdep/Makefile
@@ -79,6 +79,7 @@
# Set compile option CFLAGS if not set elsewhere
CFLAGS ?= -g -DCONFIG_LOCKDEP -DCONFIG_STACKTRACE -DCONFIG_PROVE_LOCKING -DBITS_PER_LONG=__WORDSIZE -DLIBLOCKDEP_VERSION='"$(LIBLOCKDEP_VERSION)"' -rdynamic -O0 -g
CFLAGS += -fPIC
+CFLAGS += -Wall
override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
@@ -100,7 +101,7 @@
do_compile_shared_library = \
($(print_shared_lib_compile) \
- $(CC) --shared $^ -o $@ -lpthread -ldl -Wl,-soname='"$@"';$(shell ln -sf $@ liblockdep.so))
+ $(CC) $(LDFLAGS) --shared $^ -o $@ -lpthread -ldl -Wl,-soname='$(@F)';$(shell ln -sf $(@F) $(@D)/liblockdep.so))
do_build_static_lib = \
($(print_static_lib_build) \
@@ -118,10 +119,10 @@
$(LIB_IN): force
$(Q)$(MAKE) $(build)=liblockdep
-liblockdep.so.$(LIBLOCKDEP_VERSION): $(LIB_IN)
+$(OUTPUT)liblockdep.so.$(LIBLOCKDEP_VERSION): $(LIB_IN)
$(Q)$(do_compile_shared_library)
-liblockdep.a: $(LIB_IN)
+$(OUTPUT)liblockdep.a: $(LIB_IN)
$(Q)$(do_build_static_lib)
tags: force
@@ -149,7 +150,7 @@
install: install_lib
clean:
- $(RM) *.o *~ $(TARGETS) *.a *liblockdep*.so* $(VERSION_FILES) .*.d .*.cmd
+ $(RM) $(OUTPUT)*.o *~ $(TARGETS) $(OUTPUT)*.a $(OUTPUT)*liblockdep*.so* $(VERSION_FILES) $(OUTPUT).*.d $(OUTPUT).*.cmd
$(RM) tags TAGS
PHONY += force
diff --git a/tools/lib/lockdep/lockdep.c b/tools/lib/lockdep/lockdep.c
index a0a2e3a..ced6d74 100644
--- a/tools/lib/lockdep/lockdep.c
+++ b/tools/lib/lockdep/lockdep.c
@@ -1,8 +1,27 @@
#include <linux/lockdep.h>
+#include <stdlib.h>
/* Trivial API wrappers, we don't (yet) have RCU in user-space: */
#define hlist_for_each_entry_rcu hlist_for_each_entry
#define hlist_add_head_rcu hlist_add_head
#define hlist_del_rcu hlist_del
+#define list_for_each_entry_rcu list_for_each_entry
+#define list_add_tail_rcu list_add_tail
+
+u32 prandom_u32(void)
+{
+ /* Used only by lock_pin_lock() which is dead code */
+ abort();
+}
+
+static struct new_utsname *init_utsname(void)
+{
+ static struct new_utsname n = (struct new_utsname) {
+ .release = "liblockdep",
+ .version = LIBLOCKDEP_VERSION,
+ };
+
+ return &n;
+}
#include "../../../kernel/locking/lockdep.c"
diff --git a/tools/lib/lockdep/preload.c b/tools/lib/lockdep/preload.c
index 5284484..6a2d3c5 100644
--- a/tools/lib/lockdep/preload.c
+++ b/tools/lib/lockdep/preload.c
@@ -4,6 +4,7 @@
#include <dlfcn.h>
#include <stdlib.h>
#include <sysexits.h>
+#include <unistd.h>
#include "include/liblockdep/mutex.h"
#include "../../include/linux/rbtree.h"
@@ -122,8 +123,6 @@ static struct rb_node **__get_lock_node(void *lock, struct rb_node **parent)
#define LIBLOCKDEP_STATIC_ENTRIES 1024
#endif
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-
static struct lock_lookup __locks[LIBLOCKDEP_STATIC_ENTRIES];
static int __locks_nr;
@@ -149,7 +148,7 @@ static struct lock_lookup *alloc_lock(void)
int idx = __locks_nr++;
if (idx >= ARRAY_SIZE(__locks)) {
- fprintf(stderr,
+ dprintf(STDERR_FILENO,
"LOCKDEP error: insufficient LIBLOCKDEP_STATIC_ENTRIES\n");
exit(EX_UNAVAILABLE);
}
diff --git a/tools/lib/lockdep/rbtree.c b/tools/lib/lockdep/rbtree.c
index f7f4303..297c304 100644
--- a/tools/lib/lockdep/rbtree.c
+++ b/tools/lib/lockdep/rbtree.c
@@ -1 +1 @@
-#include "../../../lib/rbtree.c"
+#include "../../lib/rbtree.c"
diff --git a/tools/lib/lockdep/run_tests.sh b/tools/lib/lockdep/run_tests.sh
index 1069d96..f9b9409 100755
--- a/tools/lib/lockdep/run_tests.sh
+++ b/tools/lib/lockdep/run_tests.sh
@@ -4,9 +4,9 @@
for i in `ls tests/*.c`; do
testname=$(basename "$i" .c)
- gcc -o tests/$testname -pthread -lpthread $i liblockdep.a -Iinclude -D__USE_LIBLOCKDEP &> /dev/null
+ gcc -o tests/$testname -pthread $i liblockdep.a -Iinclude -D__USE_LIBLOCKDEP &> /dev/null
echo -ne "$testname... "
- if [ $(timeout 1 ./tests/$testname | wc -l) -gt 0 ]; then
+ if [ $(timeout 1 ./tests/$testname 2>&1 | wc -l) -gt 0 ]; then
echo "PASSED!"
else
echo "FAILED!"
@@ -18,9 +18,9 @@
for i in `ls tests/*.c`; do
testname=$(basename "$i" .c)
- gcc -o tests/$testname -pthread -lpthread -Iinclude $i &> /dev/null
+ gcc -o tests/$testname -pthread -Iinclude $i &> /dev/null
echo -ne "(PRELOAD) $testname... "
- if [ $(timeout 1 ./lockdep ./tests/$testname | wc -l) -gt 0 ]; then
+ if [ $(timeout 1 ./lockdep ./tests/$testname 2>&1 | wc -l) -gt 0 ]; then
echo "PASSED!"
else
echo "FAILED!"
diff --git a/tools/lib/lockdep/uinclude/asm/hash.h b/tools/lib/lockdep/uinclude/asm/hash.h
deleted file mode 100644
index d82b170b..0000000
--- a/tools/lib/lockdep/uinclude/asm/hash.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_GENERIC_HASH_H
-#define __ASM_GENERIC_HASH_H
-
-/* Stub */
-
-#endif /* __ASM_GENERIC_HASH_H */
diff --git a/tools/lib/lockdep/uinclude/asm/hweight.h b/tools/lib/lockdep/uinclude/asm/hweight.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/asm/hweight.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/asm/sections.h b/tools/lib/lockdep/uinclude/asm/sections.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/asm/sections.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/bitops.h b/tools/lib/lockdep/uinclude/linux/bitops.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/bitops.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/compiler.h b/tools/lib/lockdep/uinclude/linux/compiler.h
deleted file mode 100644
index fd3e56a..0000000
--- a/tools/lib/lockdep/uinclude/linux/compiler.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _LIBLOCKDEP_LINUX_COMPILER_H_
-#define _LIBLOCKDEP_LINUX_COMPILER_H_
-
-#define __used __attribute__((__unused__))
-#define unlikely
-#define READ_ONCE(x) (x)
-#define WRITE_ONCE(x, val) x=(val)
-#define RCU_INIT_POINTER(p, v) p=(v)
-
-#endif
diff --git a/tools/lib/lockdep/uinclude/linux/delay.h b/tools/lib/lockdep/uinclude/linux/delay.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/delay.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/ftrace.h b/tools/lib/lockdep/uinclude/linux/ftrace.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/ftrace.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/gfp.h b/tools/lib/lockdep/uinclude/linux/gfp.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/gfp.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/hash.h b/tools/lib/lockdep/uinclude/linux/hash.h
deleted file mode 100644
index 0f84798..0000000
--- a/tools/lib/lockdep/uinclude/linux/hash.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../include/linux/hash.h"
diff --git a/tools/lib/lockdep/uinclude/linux/interrupt.h b/tools/lib/lockdep/uinclude/linux/interrupt.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/interrupt.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/kernel.h b/tools/lib/lockdep/uinclude/linux/kernel.h
deleted file mode 100644
index 276c7a8..0000000
--- a/tools/lib/lockdep/uinclude/linux/kernel.h
+++ /dev/null
@@ -1,47 +0,0 @@
-#ifndef _LIBLOCKDEP_LINUX_KERNEL_H_
-#define _LIBLOCKDEP_LINUX_KERNEL_H_
-
-#include <linux/export.h>
-#include <linux/types.h>
-#include <linux/rcu.h>
-#include <linux/hardirq.h>
-#include <linux/kern_levels.h>
-
-#ifndef container_of
-#define container_of(ptr, type, member) ({ \
- const typeof(((type *)0)->member) * __mptr = (ptr); \
- (type *)((char *)__mptr - offsetof(type, member)); })
-#endif
-
-#define max(x, y) ({ \
- typeof(x) _max1 = (x); \
- typeof(y) _max2 = (y); \
- (void) (&_max1 == &_max2); \
- _max1 > _max2 ? _max1 : _max2; })
-
-#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
-#define WARN_ON(x) (x)
-#define WARN_ON_ONCE(x) (x)
-#define likely(x) (x)
-#define WARN(x, y...) (x)
-#define uninitialized_var(x) x
-#define __init
-#define noinline
-#define list_add_tail_rcu list_add_tail
-#define list_for_each_entry_rcu list_for_each_entry
-#define barrier()
-#define synchronize_sched()
-
-#ifndef CALLER_ADDR0
-#define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
-#endif
-
-#ifndef _RET_IP_
-#define _RET_IP_ CALLER_ADDR0
-#endif
-
-#ifndef _THIS_IP_
-#define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; })
-#endif
-
-#endif
diff --git a/tools/lib/lockdep/uinclude/linux/linkage.h b/tools/lib/lockdep/uinclude/linux/linkage.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/linkage.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/list.h b/tools/lib/lockdep/uinclude/linux/list.h
deleted file mode 100644
index 6e9ef31..0000000
--- a/tools/lib/lockdep/uinclude/linux/list.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../include/linux/list.h"
diff --git a/tools/lib/lockdep/uinclude/linux/module.h b/tools/lib/lockdep/uinclude/linux/module.h
deleted file mode 100644
index 09c7a7b..0000000
--- a/tools/lib/lockdep/uinclude/linux/module.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _LIBLOCKDEP_LINUX_MODULE_H_
-#define _LIBLOCKDEP_LINUX_MODULE_H_
-
-#define module_param(name, type, perm)
-
-#endif
diff --git a/tools/lib/lockdep/uinclude/linux/mutex.h b/tools/lib/lockdep/uinclude/linux/mutex.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/mutex.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/poison.h b/tools/lib/lockdep/uinclude/linux/poison.h
deleted file mode 100644
index 0c27bdf..0000000
--- a/tools/lib/lockdep/uinclude/linux/poison.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../include/linux/poison.h"
diff --git a/tools/lib/lockdep/uinclude/linux/prefetch.h b/tools/lib/lockdep/uinclude/linux/prefetch.h
deleted file mode 100644
index d73fe6f..0000000
--- a/tools/lib/lockdep/uinclude/linux/prefetch.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _LIBLOCKDEP_LINUX_PREFETCH_H_
-#define _LIBLOCKDEP_LINUX_PREFETCH_H
-
-static inline void prefetch(void *a __attribute__((unused))) { }
-
-#endif
diff --git a/tools/lib/lockdep/uinclude/linux/proc_fs.h b/tools/lib/lockdep/uinclude/linux/proc_fs.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/proc_fs.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/rbtree_augmented.h b/tools/lib/lockdep/uinclude/linux/rbtree_augmented.h
deleted file mode 100644
index c375947..0000000
--- a/tools/lib/lockdep/uinclude/linux/rbtree_augmented.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#define __always_inline
-#include "../../../include/linux/rbtree_augmented.h"
diff --git a/tools/lib/lockdep/uinclude/linux/seq_file.h b/tools/lib/lockdep/uinclude/linux/seq_file.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/seq_file.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/spinlock.h b/tools/lib/lockdep/uinclude/linux/spinlock.h
deleted file mode 100644
index 68c1aa2..0000000
--- a/tools/lib/lockdep/uinclude/linux/spinlock.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef _LIBLOCKDEP_SPINLOCK_H_
-#define _LIBLOCKDEP_SPINLOCK_H_
-
-#include <pthread.h>
-#include <stdbool.h>
-
-#define arch_spinlock_t pthread_mutex_t
-#define __ARCH_SPIN_LOCK_UNLOCKED PTHREAD_MUTEX_INITIALIZER
-
-static inline void arch_spin_lock(arch_spinlock_t *mutex)
-{
- pthread_mutex_lock(mutex);
-}
-
-static inline void arch_spin_unlock(arch_spinlock_t *mutex)
-{
- pthread_mutex_unlock(mutex);
-}
-
-static inline bool arch_spin_is_locked(arch_spinlock_t *mutex)
-{
- return true;
-}
-
-#endif
diff --git a/tools/lib/lockdep/uinclude/linux/stringify.h b/tools/lib/lockdep/uinclude/linux/stringify.h
deleted file mode 100644
index 05dfcd1..0000000
--- a/tools/lib/lockdep/uinclude/linux/stringify.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _LIBLOCKDEP_LINUX_STRINGIFY_H_
-#define _LIBLOCKDEP_LINUX_STRINGIFY_H_
-
-#define __stringify_1(x...) #x
-#define __stringify(x...) __stringify_1(x)
-
-#endif
diff --git a/tools/lib/lockdep/uinclude/trace/events/lock.h b/tools/lib/lockdep/uinclude/trace/events/lock.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/trace/events/lock.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-