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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
rodzic ca7c8d2c1e
commit 442464a500
3 zmienionych plików z 37 dodań i 64 usunięć
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38
include/asm-sparc64/spinlock.h
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@@ -132,12 +132,15 @@ do { \
membar("#LoadLoad"); \
} while((__lock)->lock)
extern void _do_spin_lock (spinlock_t *lock, char *str);
extern void _do_spin_unlock (spinlock_t *lock);
extern int _do_spin_trylock (spinlock_t *lock);
extern void _do_spin_lock(spinlock_t *lock, char *str, unsigned long caller);
extern void _do_spin_unlock(spinlock_t *lock);
extern int _do_spin_trylock(spinlock_t *lock, unsigned long caller);
#define _raw_spin_trylock(lp) _do_spin_trylock(lp)
#define _raw_spin_lock(lock) _do_spin_lock(lock, "spin_lock")
#define _raw_spin_trylock(lp) \
_do_spin_trylock(lp, (unsigned long) __builtin_return_address(0))
#define _raw_spin_lock(lock) \
_do_spin_lock(lock, "spin_lock", \
(unsigned long) __builtin_return_address(0))
#define _raw_spin_unlock(lock) _do_spin_unlock(lock)
#define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock)
@@ -279,37 +282,41 @@ typedef struct {
#define RW_LOCK_UNLOCKED (rwlock_t) { 0, 0, 0xff, { } }
#define rwlock_init(lp) do { *(lp) = RW_LOCK_UNLOCKED; } while(0)
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);
extern void _do_read_lock(rwlock_t *rw, char *str, unsigned long caller);
extern void _do_read_unlock(rwlock_t *rw, char *str, unsigned long caller);
extern void _do_write_lock(rwlock_t *rw, char *str, unsigned long caller);
extern void _do_write_unlock(rwlock_t *rw, unsigned long caller);
extern int _do_write_trylock(rwlock_t *rw, char *str, unsigned long caller);
#define _raw_read_lock(lock) \
do { unsigned long flags; \
local_irq_save(flags); \
_do_read_lock(lock, "read_lock"); \
_do_read_lock(lock, "read_lock", \
(unsigned long) __builtin_return_address(0)); \
local_irq_restore(flags); \
} while(0)
#define _raw_read_unlock(lock) \
do { unsigned long flags; \
local_irq_save(flags); \
_do_read_unlock(lock, "read_unlock"); \
_do_read_unlock(lock, "read_unlock", \
(unsigned long) __builtin_return_address(0)); \
local_irq_restore(flags); \
} while(0)
#define _raw_write_lock(lock) \
do { unsigned long flags; \
local_irq_save(flags); \
_do_write_lock(lock, "write_lock"); \
_do_write_lock(lock, "write_lock", \
(unsigned long) __builtin_return_address(0)); \
local_irq_restore(flags); \
} while(0)
#define _raw_write_unlock(lock) \
do { unsigned long flags; \
local_irq_save(flags); \
_do_write_unlock(lock); \
_do_write_unlock(lock, \
(unsigned long) __builtin_return_address(0)); \
local_irq_restore(flags); \
} while(0)
@@ -317,7 +324,8 @@ do { unsigned long flags; \
({ unsigned long flags; \
int val; \
local_irq_save(flags); \
val = _do_write_trylock(lock, "write_trylock"); \
val = _do_write_trylock(lock, "write_trylock", \
(unsigned long) __builtin_return_address(0)); \
local_irq_restore(flags); \
val; \
})