Re: Hack to make postgres compile on Dec 4.0f with GCC

Can someone make a suggestion here?

Hi.

Here is a patch I hacked together. I didn't understand the TAS thing, and
it appeared to be the cause of the problem. I hacked the code up by
commenting out the assembly TAS provided and inserting the semaphore
macros for the non-gcc alpha version. Perhaps someone with expertise in
this area could assist in fixing the provided TAS.

Here is the patch:

-Michael

*** include/storage/s_lock.h    Tue Mar 14 23:01:08 2000
--- include/storage/s_lock.h.bak        Sat Mar 11 19:21:30 2000
***************
*** 79,85 ****
*/

#if defined(__alpha__)
! /*#define TAS(lock) tas(lock)
#define S_UNLOCK(lock) { __asm__("mb"); *(lock) = 0; }

static __inline__ int
--- 79,85 ----
*/

#if defined(__alpha__)
! #define TAS(lock) tas(lock)
#define S_UNLOCK(lock) { __asm__("mb"); *(lock) = 0; }

static __inline__ int
***************
*** 102,118 ****
4: nop ": "=m"(*lock), "=r"(_res): :"0");

return (int) _res;
! }*/
! /*
! * OSF/1 (Alpha AXP)
! *
! * Note that slock_t on the Alpha AXP is msemaphore instead of char
! * (see storage/ipc.h).
! */
! #define TAS(lock) (msem_lock((lock), MSEM_IF_NOWAIT) < 0)
! #define S_UNLOCK(lock) msem_unlock((lock), 0)
! #define S_INIT_LOCK(lock) msem_init((lock), MSEM_UNLOCKED)
! #define S_LOCK_FREE(lock) (!(lock)->msem_state)

#endif /* __alpha__ */

--- 102,108 ----
4: nop      ": "=m"(*lock), "=r"(_res): :"0");

return (int) _res;
! }

#endif /* __alpha__ */

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