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Line 60... Line 60...
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 *
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 *
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 * @param sl Pointer to spinlock_t structure.
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 * @param sl Pointer to spinlock_t structure.
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 */
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 */
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void spinlock_lock(spinlock_t *sl)
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void spinlock_lock(spinlock_t *sl)
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{
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{
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    int i = 0;
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    count_t i = 0;
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    __address caller = ((__address *) &sl)[-1];
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    __address caller = ((__address *) &sl)[-1];
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    char *symbol;
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    char *symbol;
- 
 
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    bool deadlock_reported = false;
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    preemption_disable();
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    preemption_disable();
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    while (test_and_set(&sl->val)) {
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    while (test_and_set(&sl->val)) {
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        if (i++ > 300000) {
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        if (i++ > 300000) {
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            printf("cpu%d: looping on spinlock %p:%s, caller=%p",
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            printf("cpu%d: looping on spinlock %p:%s, caller=%p",
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            symbol = get_symtab_entry(caller);
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            symbol = get_symtab_entry(caller);
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            if (symbol)
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            if (symbol)
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                printf("(%s)", symbol);
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                printf("(%s)", symbol);
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            printf("\n");
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            printf("\n");
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            i = 0;
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            i = 0;
- 
 
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            deadlock_reported = true;
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        }
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        }
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    }
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    }
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- 
 
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    if (deadlock_reported)
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        printf("cpu%d: not deadlocked\n", CPU->id);
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    /*
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    /*
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     * Prevent critical section code from bleeding out this way up.
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     * Prevent critical section code from bleeding out this way up.
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     */
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     */
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    CS_ENTER_BARRIER();
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    CS_ENTER_BARRIER();
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