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[SPARC64]: Make debugging spinlocks usable again.

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When the spinlock routines were moved out of line into
kernel/spinlock.c this made it so that the debugging
spinlocks record lock acquisition program counts in the
kernel/spinlock.c functions not in their callers.
This makes the debugging info kind of useless.

So record the correct caller's program counter and
now this feature is useful once more.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2005-08-29 12:46:07 -07:00
parent ca7c8d2c1e
commit 442464a500
3 changed files with 37 additions and 64 deletions
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23
arch/sparc64/kernel/sparc64_ksyms.c
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@ -99,17 +99,6 @@ extern int __ashrdi3(int, int);
extern void dump_thread(struct pt_regs *, struct user *);
extern int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs);
#if defined(CONFIG_SMP) && defined(CONFIG_DEBUG_SPINLOCK)
extern void _do_spin_lock (spinlock_t *lock, char *str);
extern void _do_spin_unlock (spinlock_t *lock);
extern int _spin_trylock (spinlock_t *lock);
extern void _do_read_lock(rwlock_t *rw, char *str);
extern void _do_read_unlock(rwlock_t *rw, char *str);
extern void _do_write_lock(rwlock_t *rw, char *str);
extern void _do_write_unlock(rwlock_t *rw);
extern int _do_write_trylock(rwlock_t *rw, char *str);
#endif
extern unsigned long phys_base;
extern unsigned long pfn_base;
@ -152,18 +141,6 @@ EXPORT_SYMBOL(_mcount);
EXPORT_SYMBOL(cpu_online_map);
EXPORT_SYMBOL(phys_cpu_present_map);
/* Spinlock debugging library, optional. */
#ifdef CONFIG_DEBUG_SPINLOCK
EXPORT_SYMBOL(_do_spin_lock);
EXPORT_SYMBOL(_do_spin_unlock);
EXPORT_SYMBOL(_spin_trylock);
EXPORT_SYMBOL(_do_read_lock);
EXPORT_SYMBOL(_do_read_unlock);
EXPORT_SYMBOL(_do_write_lock);
EXPORT_SYMBOL(_do_write_unlock);
EXPORT_SYMBOL(_do_write_trylock);
#endif
EXPORT_SYMBOL(smp_call_function);
#endif /* CONFIG_SMP */