/* * lib/locking-selftest.c * * Testsuite for various locking APIs: spinlocks, rwlocks, * mutexes and rw-semaphores. * * It is checking both false positives and false negatives. * * Started by Ingo Molnar: * * Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> */#include <linux/rwsem.h>#include <linux/mutex.h>#include <linux/sched.h>#include <linux/delay.h>#include <linux/module.h>#include <linux/lockdep.h>#include <linux/spinlock.h>#include <linux/kallsyms.h>#include <linux/interrupt.h>#include <linux/debug_locks.h>#include <linux/irqflags.h> /* * Change this to 1 if you want to see the failure printouts: */static unsigned int debug_locks_verbose; static int __init setup_debug_locks_verbose(char *str){ get_option(&str, &debug_locks_verbose); return 1;} __setup("debug_locks_verbose=", setup_debug_locks_verbose); #define FAILURE 0#define SUCCESS 1 #define LOCKTYPE_SPIN 0x1#define LOCKTYPE_RWLOCK 0x2#define LOCKTYPE_MUTEX 0x4#define LOCKTYPE_RWSEM 0x8 /* * Normal standalone locks, for the circular and irq-context * dependency tests: */static DEFINE_SPINLOCK(lock_A);static DEFINE_SPINLOCK(lock_B);static DEFINE_SPINLOCK(lock_C);static DEFINE_SPINLOCK(lock_D); static DEFINE_RWLOCK(rwlock_A);static DEFINE_RWLOCK(rwlock_B);static DEFINE_RWLOCK(rwlock_C);static DEFINE_RWLOCK(rwlock_D); static DEFINE_MUTEX(mutex_A);static DEFINE_MUTEX(mutex_B);static DEFINE_MUTEX(mutex_C);static DEFINE_MUTEX(mutex_D); static DECLARE_RWSEM(rwsem_A);static DECLARE_RWSEM(rwsem_B);static DECLARE_RWSEM(rwsem_C);static DECLARE_RWSEM(rwsem_D); /* * Locks that we initialize dynamically as well so that * e.g. X1 and X2 becomes two instances of the same class, * but X* and Y* are different classes. We do this so that * we do not trigger a real lockup: */static DEFINE_SPINLOCK(lock_X1);static DEFINE_SPINLOCK(lock_X2);static DEFINE_SPINLOCK(lock_Y1);static DEFINE_SPINLOCK(lock_Y2);static DEFINE_SPINLOCK(lock_Z1);static DEFINE_SPINLOCK(lock_Z2); static DEFINE_RWLOCK(rwlock_X1);static DEFINE_RWLOCK(rwlock_X2);static DEFINE_RWLOCK(rwlock_Y1);static DEFINE_RWLOCK(rwlock_Y2);static DEFINE_RWLOCK(rwlock_Z1);static DEFINE_RWLOCK(rwlock_Z2); static DEFINE_MUTEX(mutex_X1);static DEFINE_MUTEX(mutex_X2);static DEFINE_MUTEX(mutex_Y1);static DEFINE_MUTEX(mutex_Y2);static DEFINE_MUTEX(mutex_Z1);static DEFINE_MUTEX(mutex_Z2); static DECLARE_RWSEM(rwsem_X1);static DECLARE_RWSEM(rwsem_X2);static DECLARE_RWSEM(rwsem_Y1);static DECLARE_RWSEM(rwsem_Y2);static DECLARE_RWSEM(rwsem_Z1);static DECLARE_RWSEM(rwsem_Z2); /* * non-inlined runtime initializers, to let separate locks share * the same lock-class: */#define INIT_CLASS_FUNC(class) \static noinline void \init_class_##class(spinlock_t *lock, rwlock_t *rwlock, struct mutex *mutex, \ struct rw_semaphore *rwsem) \{ \ spin_lock_init(lock); \ rwlock_init(rwlock); \ mutex_init(mutex); \ init_rwsem(rwsem); \} INIT_CLASS_FUNC(X)INIT_CLASS_FUNC(Y)INIT_CLASS_FUNC(Z) static void init_shared_classes(void){ init_class_X(&lock_X1, &rwlock_X1, &mutex_X1, &rwsem_X1); init_class_X(&lock_X2, &rwlock_X2, &mutex_X2, &rwsem_X2); init_class_Y(&lock_Y1, &rwlock_Y1, &mutex_Y1, &rwsem_Y1); init_class_Y(&lock_Y2, &rwlock_Y2, &mutex_Y2, &rwsem_Y2); init_class_Z(&lock_Z1, &rwlock_Z1, &mutex_Z1, &rwsem_Z1); init_class_Z(&lock_Z2, &rwlock_Z2, &mutex_Z2, &rwsem_Z2);} /* * For spinlocks and rwlocks we also do hardirq-safe / softirq-safe tests. * The following functions use a lock from a simulated hardirq/softirq * context, causing the locks to be marked as hardirq-safe/softirq-safe: */ #define HARDIRQ_DISABLE local_irq_disable#define HARDIRQ_ENABLE local_irq_enable #define HARDIRQ_ENTER() \ local_irq_disable(); \ irq_enter(); \ WARN_ON(!in_irq()); #define HARDIRQ_EXIT() \ __irq_exit(); \ local_irq_enable(); #define SOFTIRQ_DISABLE local_bh_disable#define SOFTIRQ_ENABLE local_bh_enable #define SOFTIRQ_ENTER() \ local_bh_disable(); \ local_irq_disable(); \ trace_softirq_enter(); \ WARN_ON(!in_softirq()); #define SOFTIRQ_EXIT() \ trace_softirq_exit(); \ local_irq_enable(); \ local_bh_enable(); /* * Shortcuts for lock/unlock API variants, to keep * the testcases compact: */#define L(x) spin_lock(&lock_##x)#define U(x) spin_unlock(&lock_##x)#define LU(x) L(x); U(x)#define SI(x) spin_lock_init(&lock_##x) #define WL(x) write_lock(&rwlock_##x)#define WU(x) write_unlock(&rwlock_##x)#define WLU(x) WL(x); WU(x) #define RL(x) read_lock(&rwlock_##x)#define RU(x) read_unlock(&rwlock_##x)#define RLU(x) RL(x); RU(x)#define RWI(x) rwlock_init(&rwlock_##x) #define ML(x) mutex_lock(&mutex_##x)#define MU(x) mutex_unlock(&mutex_##x)#define MI(x) mutex_init(&mutex_##x) #define WSL(x) down_write(&rwsem_##x)#define WSU(x) up_write(&rwsem_##x) #define RSL(x) down_read(&rwsem_##x)#define RSU(x) up_read(&rwsem_##x)#define RWSI(x) init_rwsem(&rwsem_##x) #define LOCK_UNLOCK_2(x,y) LOCK(x); LOCK(y); UNLOCK(y); UNLOCK(x) /* * Generate different permutations of the same testcase, using * the same basic lock-dependency/state events: */ #define GENERATE_TESTCASE(name) \ \static void name(void) { E(); } #define GENERATE_PERMUTATIONS_2_EVENTS(name) \ \static void name##_12(void) { E1(); E2(); } \static void name##_21(void) { E2(); E1(); } #define GENERATE_PERMUTATIONS_3_EVENTS(name) \ \static void name##_123(void) { E1(); E2(); E3(); } \static void name##_132(void) { E1(); E3(); E2(); } \static void name##_213(void) { E2(); E1(); E3(); } \static void name##_231(void) { E2(); E3(); E1(); } \static void name##_312(void) { E3(); E1(); E2(); } \static void name##_321(void) { E3(); E2(); E1(); } /* * AA deadlock: */ #define E() \ \ LOCK(X1); \ LOCK(X2); /* this one should fail */ /* * 6 testcases: */#include "locking-selftest-spin.h"GENERATE_TESTCASE(AA_spin)#include "locking-selftest-wlock.h"GENERATE_TESTCASE(AA_wlock)#include "locking-selftest-rlock.h"GENERATE_TESTCASE(AA_rlock)#include "locking-selftest-mutex.h"GENERATE_TESTCASE(AA_mutex)#include "locking-selftest-wsem.h"GENERATE_TESTCASE(AA_wsem)#include "locking-selftest-rsem.h"GENERATE_TESTCASE(AA_rsem) #undef E /* * Special-case for read-locking, they are * allowed to recurse on the same lock class: */static void rlock_AA1(void){ RL(X1); RL(X1); // this one should NOT fail} static void rlock_AA1B(void){ RL(X1); RL(X2); // this one should NOT fail} static void rsem_AA1(void){ RSL(X1); RSL(X1); // this one should fail} static void rsem_AA1B(void){ RSL(X1); RSL(X2); // this one should fail}/* * The mixing of read and write locks is not allowed: */static void rlock_AA2(void){ RL(X1); WL(X2); // this one should fail} static void rsem_AA2(void){ RSL(X1); WSL(X2); // this one should fail} static void rlock_AA3(void){ WL(X1); RL(X2); // this one should fail} static void rsem_AA3(void){ WSL(X1); RSL(X2); // this one should fail} /* * ABBA deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(B, A); /* fail */ /* * 6 testcases: */#include "locking-selftest-spin.h"GENERATE_TESTCASE(ABBA_spin)#include "locking-selftest-wlock.h"GENERATE_TESTCASE(ABBA_wlock)#include "locking-selftest-rlock.h"GENERATE_TESTCASE(ABBA_rlock)#include "locking-selftest-mutex.h"GENERATE_TESTCASE(ABBA_mutex)#include "locking-selftest-wsem.h"GENERATE_TESTCASE(ABBA_wsem)#include "locking-selftest-rsem.h"GENERATE_TESTCASE(ABBA_rsem) #undef E /* * AB BC CA deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(B, C); \ LOCK_UNLOCK_2(C, A); /* fail */ /* * 6 testcases: */#include "locking-selftest-spin.h"GENERATE_TESTCASE(ABBCCA_spin)#include "locking-selftest-wlock.h"GENERATE_TESTCASE(ABBCCA_wlock)#include "locking-selftest-rlock.h"GENERATE_TESTCASE(ABBCCA_rlock)#include "locking-selftest-mutex.h"GENERATE_TESTCASE(ABBCCA_mutex)#include "locking-selftest-wsem.h"GENERATE_TESTCASE(ABBCCA_wsem)#include "locking-selftest-rsem.h"GENERATE_TESTCASE(ABBCCA_rsem) #undef E /* * AB CA BC deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(C, A); \ LOCK_UNLOCK_2(B, C); /* fail */ /* * 6 testcases: */#include "locking-selftest-spin.h"GENERATE_TESTCASE(ABCABC_spin)#include "locking-selftest-wlock.h"GENERATE_TESTCASE(ABCABC_wlock)#include "locking-selftest-rlock.h"GENERATE_TESTCASE(ABCABC_rlock)#include "locking-selftest-mutex.h"GENERATE_TESTCASE(ABCABC_mutex)#include "locking-selftest-wsem.h"GENERATE_TESTCASE(ABCABC_wsem)#include "locking-selftest-rsem.h"GENERATE_TESTCASE(ABCABC_rsem) #undef E /* * AB BC CD DA deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(B, C); \ LOCK_UNLOCK_2(C, D); \ LOCK_UNLOCK_2(D, A); /* fail */ /* * 6 testcases: */#include "locking-selftest-spin.h"GENERATE_TESTCASE(ABBCCDDA_spin)#include "locking-selftest-wlock.h"GENERATE_TESTCASE(ABBCCDDA_wlock)#include "locking-selftest-rlock.h"GENERATE_TESTCASE(ABBCCDDA_rlock)#include "locking-selftest-mutex.h"GENERATE_TESTCASE(ABBCCDDA_mutex)#include "locking-selftest-wsem.h"GENERATE_TESTCASE(ABBCCDDA_wsem)#include "locking-selftest-rsem.h"GENERATE_TESTCASE(ABBCCDDA_rsem) #undef E /* * AB CD BD DA deadlock: */#define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(C, D); \ LOCK_UNLOCK_2(B, D); \ LOCK_UNLOCK_2(D, A); /* fail */ /* * 6 testcases: */#include "locking-selftest-spin.h"GENERATE_TESTCASE(ABCDBDDA_spin)#include "locking-selftest-wlock.h"GENERATE_TESTCASE(ABCDBDDA_wlock)#include "locking-selftest-rlock.h"GENERATE_TESTCASE(ABCDBDDA_rlock)#include "locking-selftest-mutex.h"GENERATE_TESTCASE(ABCDBDDA_mutex)#include "locking-selftest-wsem.h"GENERATE_TESTCASE(ABCDBDDA_wsem)#include "locking-selftest-rsem.h"GENERATE_TESTCASE(ABCDBDDA_rsem) #undef E /* * AB CD BC DA deadlock: */#define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(C, D); \ LOCK_UNLOCK_2(B, C); \ LOCK_UNLOCK_2(D, A); /* fail */ /* * 6 testcases: */#include "locking-selftest-spin.h"GENERATE_TESTCASE(ABCDBCDA_spin)#include "locking-selftest-wlock.h"GENERATE_TESTCASE(ABCDBCDA_wlock)#include "locking-selftest-rlock.h"GENERATE_TESTCASE(ABCDBCDA_rlock)#include "locking-selftest-mutex.h"GENERATE_TESTCASE(ABCDBCDA_mutex)#include "locking-selftest-wsem.h"GENERATE_TESTCASE(ABCDBCDA_wsem)#include "locking-selftest-rsem.h"GENERATE_TESTCASE(ABCDBCDA_rsem) #undef E /* * Double unlock: */#define E() \ \ LOCK(A); \ UNLOCK(A); \ UNLOCK(A); /* fail */ /* * 6 testcases: */#include "locking-selftest-spin.h"GENERATE_TESTCASE(double_unlock_spin)#include "locking-selftest-wlock.h"GENERATE_TESTCASE(double_unlock_wlock)#include "locking-selftest-rlock.h"GENERATE_TESTCASE(double_unlock_rlock)#include "locking-selftest-mutex.h"GENERATE_TESTCASE(double_unlock_mutex)#include "locking-selftest-wsem.h"GENERATE_TESTCASE(double_unlock_wsem)#include "locking-selftest-rsem.h"GENERATE_TESTCASE(double_unlock_rsem) #undef E /* * Bad unlock ordering: */Lines 1–500 of 1218. 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/* * lib/locking-selftest.c * * Testsuite for various locking APIs: spinlocks, rwlocks, * mutexes and rw-semaphores. * * It is checking both false positives and false negatives. * * Started by Ingo Molnar: * * Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> */ #include <linux/rwsem.h> #include <linux/mutex.h> #include <linux/sched.h> #include <linux/delay.h> #include <linux/module.h> #include <linux/lockdep.h> #include <linux/spinlock.h> #include <linux/kallsyms.h> #include <linux/interrupt.h> #include <linux/debug_locks.h> #include <linux/irqflags.h> /* * Change this to 1 if you want to see the failure printouts: */ static unsigned int debug_locks_verbose; static int __init setup_debug_locks_verbose(char *str) { get_option(&str, &debug_locks_verbose); return 1; } __setup("debug_locks_verbose=", setup_debug_locks_verbose); #define FAILURE 0 #define SUCCESS 1 #define LOCKTYPE_SPIN 0x1 #define LOCKTYPE_RWLOCK 0x2 #define LOCKTYPE_MUTEX 0x4 #define LOCKTYPE_RWSEM 0x8 /* * Normal standalone locks, for the circular and irq-context * dependency tests: */ static DEFINE_SPINLOCK(lock_A); static DEFINE_SPINLOCK(lock_B); static DEFINE_SPINLOCK(lock_C); static DEFINE_SPINLOCK(lock_D); static DEFINE_RWLOCK(rwlock_A); static DEFINE_RWLOCK(rwlock_B); static DEFINE_RWLOCK(rwlock_C); static DEFINE_RWLOCK(rwlock_D); static DEFINE_MUTEX(mutex_A); static DEFINE_MUTEX(mutex_B); static DEFINE_MUTEX(mutex_C); static DEFINE_MUTEX(mutex_D); static DECLARE_RWSEM(rwsem_A); static DECLARE_RWSEM(rwsem_B); static DECLARE_RWSEM(rwsem_C); static DECLARE_RWSEM(rwsem_D); /* * Locks that we initialize dynamically as well so that * e.g. X1 and X2 becomes two instances of the same class, * but X* and Y* are different classes. We do this so that * we do not trigger a real lockup: */ static DEFINE_SPINLOCK(lock_X1); static DEFINE_SPINLOCK(lock_X2); static DEFINE_SPINLOCK(lock_Y1); static DEFINE_SPINLOCK(lock_Y2); static DEFINE_SPINLOCK(lock_Z1); static DEFINE_SPINLOCK(lock_Z2); static DEFINE_RWLOCK(rwlock_X1); static DEFINE_RWLOCK(rwlock_X2); static DEFINE_RWLOCK(rwlock_Y1); static DEFINE_RWLOCK(rwlock_Y2); static DEFINE_RWLOCK(rwlock_Z1); static DEFINE_RWLOCK(rwlock_Z2); static DEFINE_MUTEX(mutex_X1); static DEFINE_MUTEX(mutex_X2); static DEFINE_MUTEX(mutex_Y1); static DEFINE_MUTEX(mutex_Y2); static DEFINE_MUTEX(mutex_Z1); static DEFINE_MUTEX(mutex_Z2); static DECLARE_RWSEM(rwsem_X1); static DECLARE_RWSEM(rwsem_X2); static DECLARE_RWSEM(rwsem_Y1); static DECLARE_RWSEM(rwsem_Y2); static DECLARE_RWSEM(rwsem_Z1); static DECLARE_RWSEM(rwsem_Z2); /* * non-inlined runtime initializers, to let separate locks share * the same lock-class: */ #define INIT_CLASS_FUNC(class) \ static noinline void \ init_class_##class(spinlock_t *lock, rwlock_t *rwlock, struct mutex *mutex, \ struct rw_semaphore *rwsem) \ { \ spin_lock_init(lock); \ rwlock_init(rwlock); \ mutex_init(mutex); \ init_rwsem(rwsem); \ } INIT_CLASS_FUNC(X) INIT_CLASS_FUNC(Y) INIT_CLASS_FUNC(Z) static void init_shared_classes(void) { init_class_X(&lock_X1, &rwlock_X1, &mutex_X1, &rwsem_X1); init_class_X(&lock_X2, &rwlock_X2, &mutex_X2, &rwsem_X2); init_class_Y(&lock_Y1, &rwlock_Y1, &mutex_Y1, &rwsem_Y1); init_class_Y(&lock_Y2, &rwlock_Y2, &mutex_Y2, &rwsem_Y2); init_class_Z(&lock_Z1, &rwlock_Z1, &mutex_Z1, &rwsem_Z1); init_class_Z(&lock_Z2, &rwlock_Z2, &mutex_Z2, &rwsem_Z2); } /* * For spinlocks and rwlocks we also do hardirq-safe / softirq-safe tests. * The following functions use a lock from a simulated hardirq/softirq * context, causing the locks to be marked as hardirq-safe/softirq-safe: */ #define HARDIRQ_DISABLE local_irq_disable #define HARDIRQ_ENABLE local_irq_enable #define HARDIRQ_ENTER() \ local_irq_disable(); \ irq_enter(); \ WARN_ON(!in_irq()); #define HARDIRQ_EXIT() \ __irq_exit(); \ local_irq_enable(); #define SOFTIRQ_DISABLE local_bh_disable #define SOFTIRQ_ENABLE local_bh_enable #define SOFTIRQ_ENTER() \ local_bh_disable(); \ local_irq_disable(); \ trace_softirq_enter(); \ WARN_ON(!in_softirq()); #define SOFTIRQ_EXIT() \ trace_softirq_exit(); \ local_irq_enable(); \ local_bh_enable(); /* * Shortcuts for lock/unlock API variants, to keep * the testcases compact: */ #define L(x) spin_lock(&lock_##x) #define U(x) spin_unlock(&lock_##x) #define LU(x) L(x); U(x) #define SI(x) spin_lock_init(&lock_##x) #define WL(x) write_lock(&rwlock_##x) #define WU(x) write_unlock(&rwlock_##x) #define WLU(x) WL(x); WU(x) #define RL(x) read_lock(&rwlock_##x) #define RU(x) read_unlock(&rwlock_##x) #define RLU(x) RL(x); RU(x) #define RWI(x) rwlock_init(&rwlock_##x) #define ML(x) mutex_lock(&mutex_##x) #define MU(x) mutex_unlock(&mutex_##x) #define MI(x) mutex_init(&mutex_##x) #define WSL(x) down_write(&rwsem_##x) #define WSU(x) up_write(&rwsem_##x) #define RSL(x) down_read(&rwsem_##x) #define RSU(x) up_read(&rwsem_##x) #define RWSI(x) init_rwsem(&rwsem_##x) #define LOCK_UNLOCK_2(x,y) LOCK(x); LOCK(y); UNLOCK(y); UNLOCK(x) /* * Generate different permutations of the same testcase, using * the same basic lock-dependency/state events: */ #define GENERATE_TESTCASE(name) \ \ static void name(void) { E(); } #define GENERATE_PERMUTATIONS_2_EVENTS(name) \ \ static void name##_12(void) { E1(); E2(); } \ static void name##_21(void) { E2(); E1(); } #define GENERATE_PERMUTATIONS_3_EVENTS(name) \ \ static void name##_123(void) { E1(); E2(); E3(); } \ static void name##_132(void) { E1(); E3(); E2(); } \ static void name##_213(void) { E2(); E1(); E3(); } \ static void name##_231(void) { E2(); E3(); E1(); } \ static void name##_312(void) { E3(); E1(); E2(); } \ static void name##_321(void) { E3(); E2(); E1(); } /* * AA deadlock: */ #define E() \ \ LOCK(X1); \ LOCK(X2); /* this one should fail */ /* * 6 testcases: */ #include "locking-selftest-spin.h" GENERATE_TESTCASE(AA_spin) #include "locking-selftest-wlock.h" GENERATE_TESTCASE(AA_wlock) #include "locking-selftest-rlock.h" GENERATE_TESTCASE(AA_rlock) #include "locking-selftest-mutex.h" GENERATE_TESTCASE(AA_mutex) #include "locking-selftest-wsem.h" GENERATE_TESTCASE(AA_wsem) #include "locking-selftest-rsem.h" GENERATE_TESTCASE(AA_rsem) #undef E /* * Special-case for read-locking, they are * allowed to recurse on the same lock class: */ static void rlock_AA1(void) { RL(X1); RL(X1); // this one should NOT fail } static void rlock_AA1B(void) { RL(X1); RL(X2); // this one should NOT fail } static void rsem_AA1(void) { RSL(X1); RSL(X1); // this one should fail } static void rsem_AA1B(void) { RSL(X1); RSL(X2); // this one should fail } /* * The mixing of read and write locks is not allowed: */ static void rlock_AA2(void) { RL(X1); WL(X2); // this one should fail } static void rsem_AA2(void) { RSL(X1); WSL(X2); // this one should fail } static void rlock_AA3(void) { WL(X1); RL(X2); // this one should fail } static void rsem_AA3(void) { WSL(X1); RSL(X2); // this one should fail } /* * ABBA deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(B, A); /* fail */ /* * 6 testcases: */ #include "locking-selftest-spin.h" GENERATE_TESTCASE(ABBA_spin) #include "locking-selftest-wlock.h" GENERATE_TESTCASE(ABBA_wlock) #include "locking-selftest-rlock.h" GENERATE_TESTCASE(ABBA_rlock) #include "locking-selftest-mutex.h" GENERATE_TESTCASE(ABBA_mutex) #include "locking-selftest-wsem.h" GENERATE_TESTCASE(ABBA_wsem) #include "locking-selftest-rsem.h" GENERATE_TESTCASE(ABBA_rsem) #undef E /* * AB BC CA deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(B, C); \ LOCK_UNLOCK_2(C, A); /* fail */ /* * 6 testcases: */ #include "locking-selftest-spin.h" GENERATE_TESTCASE(ABBCCA_spin) #include "locking-selftest-wlock.h" GENERATE_TESTCASE(ABBCCA_wlock) #include "locking-selftest-rlock.h" GENERATE_TESTCASE(ABBCCA_rlock) #include "locking-selftest-mutex.h" GENERATE_TESTCASE(ABBCCA_mutex) #include "locking-selftest-wsem.h" GENERATE_TESTCASE(ABBCCA_wsem) #include "locking-selftest-rsem.h" GENERATE_TESTCASE(ABBCCA_rsem) #undef E /* * AB CA BC deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(C, A); \ LOCK_UNLOCK_2(B, C); /* fail */ /* * 6 testcases: */ #include "locking-selftest-spin.h" GENERATE_TESTCASE(ABCABC_spin) #include "locking-selftest-wlock.h" GENERATE_TESTCASE(ABCABC_wlock) #include "locking-selftest-rlock.h" GENERATE_TESTCASE(ABCABC_rlock) #include "locking-selftest-mutex.h" GENERATE_TESTCASE(ABCABC_mutex) #include "locking-selftest-wsem.h" GENERATE_TESTCASE(ABCABC_wsem) #include "locking-selftest-rsem.h" GENERATE_TESTCASE(ABCABC_rsem) #undef E /* * AB BC CD DA deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(B, C); \ LOCK_UNLOCK_2(C, D); \ LOCK_UNLOCK_2(D, A); /* fail */ /* * 6 testcases: */ #include "locking-selftest-spin.h" GENERATE_TESTCASE(ABBCCDDA_spin) #include "locking-selftest-wlock.h" GENERATE_TESTCASE(ABBCCDDA_wlock) #include "locking-selftest-rlock.h" GENERATE_TESTCASE(ABBCCDDA_rlock) #include "locking-selftest-mutex.h" GENERATE_TESTCASE(ABBCCDDA_mutex) #include "locking-selftest-wsem.h" GENERATE_TESTCASE(ABBCCDDA_wsem) #include "locking-selftest-rsem.h" GENERATE_TESTCASE(ABBCCDDA_rsem) #undef E /* * AB CD BD DA deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(C, D); \ LOCK_UNLOCK_2(B, D); \ LOCK_UNLOCK_2(D, A); /* fail */ /* * 6 testcases: */ #include "locking-selftest-spin.h" GENERATE_TESTCASE(ABCDBDDA_spin) #include "locking-selftest-wlock.h" GENERATE_TESTCASE(ABCDBDDA_wlock) #include "locking-selftest-rlock.h" GENERATE_TESTCASE(ABCDBDDA_rlock) #include "locking-selftest-mutex.h" GENERATE_TESTCASE(ABCDBDDA_mutex) #include "locking-selftest-wsem.h" GENERATE_TESTCASE(ABCDBDDA_wsem) #include "locking-selftest-rsem.h" GENERATE_TESTCASE(ABCDBDDA_rsem) #undef E /* * AB CD BC DA deadlock: */ #define E() \ \ LOCK_UNLOCK_2(A, B); \ LOCK_UNLOCK_2(C, D); \ LOCK_UNLOCK_2(B, C); \ LOCK_UNLOCK_2(D, A); /* fail */ /* * 6 testcases: */ #include "locking-selftest-spin.h" GENERATE_TESTCASE(ABCDBCDA_spin) #include "locking-selftest-wlock.h" GENERATE_TESTCASE(ABCDBCDA_wlock) #include "locking-selftest-rlock.h" GENERATE_TESTCASE(ABCDBCDA_rlock) #include "locking-selftest-mutex.h" GENERATE_TESTCASE(ABCDBCDA_mutex) #include "locking-selftest-wsem.h" GENERATE_TESTCASE(ABCDBCDA_wsem) #include "locking-selftest-rsem.h" GENERATE_TESTCASE(ABCDBCDA_rsem) #undef E /* * Double unlock: */ #define E() \ \ LOCK(A); \ UNLOCK(A); \ UNLOCK(A); /* fail */ /* * 6 testcases: */ #include "locking-selftest-spin.h" GENERATE_TESTCASE(double_unlock_spin) #include "locking-selftest-wlock.h" GENERATE_TESTCASE(double_unlock_wlock) #include "locking-selftest-rlock.h" GENERATE_TESTCASE(double_unlock_rlock) #include "locking-selftest-mutex.h" GENERATE_TESTCASE(double_unlock_mutex) #include "locking-selftest-wsem.h" GENERATE_TESTCASE(double_unlock_wsem) #include "locking-selftest-rsem.h" GENERATE_TESTCASE(double_unlock_rsem) #undef E /* * Bad unlock ordering: */