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This patch should enable 6.5 to build on Motorola 68000 architecture. 

It comes from Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>.
This commit is contained in:
Bruce Momjian 1999-06-10 22:59:22 +00:00
parent 70dfc8c11e
commit d852d31ea3
2 changed files with 35 additions and 2 deletions
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16
src/include/postgres.h
View File

@ -6,7 +6,7 @@
*
* Copyright (c) 1995, Regents of the University of California
*
* $Id: postgres.h,v 1.22 1999/05/03 19:10:14 momjian Exp $
* $Id: postgres.h,v 1.23 1999/06/10 22:59:22 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -63,7 +63,21 @@ typedef Oid regproc;
typedef Oid RegProcedure;
/* ptr to func returning (char *) */
#if defined(__mc68000__) && defined(__ELF__)
/* The m68k SVR4 ABI defines that pointers are returned in %a0 instead of
* %d0. So if a function pointer is declared to return a pointer, the
* compiler may look only into %a0, but if the called function was declared
* to return return an integer type, it puts its value only into %d0. So the
* caller doesn't pink up the correct return value. The solution is to
* declare the function pointer to return int, so the compiler picks up the
* return value from %d0. (Functions returning pointers put their value
* *additionally* into %d0 for compability.) The price is that there are
* some warnings about int->pointer conversions...
*/
typedef int32 ((*func_ptr) ());
#else
typedef char *((*func_ptr) ());
#endif
#define RegProcedureIsValid(p) OidIsValid(p)

21
src/include/storage/s_lock.h
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.59 1999/04/13 17:42:26 momjian Exp $
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.60 1999/06/10 22:59:22 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -157,6 +157,24 @@ tas(volatile slock_t *lock)
#endif /* sparc */
#if defined(__mc68000__)
#define TAS(lock) tas(lock)
static __inline__ int
tas(volatile slock_t *lock)
{
register int rv;
__asm__ __volatile__ (
"tas %1; sne %0"
: "=d" (rv), "=m"(*lock)
: "1" (*lock)
: "cc" );
return rv;
}
#endif /* defined(__mc68000__) */
#if defined(NEED_VAX_TAS_ASM)
/*
@ -372,3 +390,4 @@ int tas(volatile slock_t *lock); /* port/.../tas.s, or
#endif /* HAS_TEST_AND_SET */
#endif /* S_LOCK_H */