Date: Wed, 27 Jul 2005 23:19:57 +0200 From: "jean-marc DETREZ" <jm.detrez@cegetel.net> To: <wine-patches@winehq.com>, <emulation@freebsd.org> Cc: barner@FreeBSD.org Subject: patch for libs/wine/mmap.c making wine running on FreeBSD 5.x Message-ID: <20050727212000.161C91A4282@smtp.cegetel.net>
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[-- Attachment #1 --]
Hi,
I'm currently testing a patch I've made for unbreaking wine (20050725) on
FreeBSD.I'ts seems that like other OS a call to mmap() return not always the
desired address range.
For NetBSD it appears that a special function was compiled "try_mmap_fixed"
who call mmap with MAP_FIXED after verifying that the memory address is
free.
I'm use this function to Create Heap System at base address 0x80000000 , I
didn't always use that function for all calls to mmap because it seems that
cause performance issues.
I made a little correction of "try_mmap_fixed" because it's seems to me
that the function didn't really test the result (vec).
I've some feedbacks from users who could run wine on BSD with that patch.
Jean-marc.
[-- Attachment #2 --]
--- mmap.orig Mon Jun 20 13:43:47 2005
+++ mmap.c Wed Jul 27 22:26:53 2005
@@ -59,7 +59,7 @@ static inline int munmap( void *ptr, siz
#endif
-#if (defined(__svr4__) || defined(__NetBSD__)) && !defined(MAP_TRYFIXED)
+#if (defined(__svr4__) || defined(__NetBSD__) || defined (__FreeBSD__)) && !defined(MAP_TRYFIXED)
/***********************************************************************
* try_mmap_fixed
*
@@ -116,7 +116,7 @@ static int try_mmap_fixed (void *addr, s
If any of these calls succeeds, the page is already
mapped and we must fail. */
for ( i = 0; i < len; i += pagesize )
- if ( mincore( (caddr_t)addr + i, pagesize, &vec ) != -1 )
+ if ( mincore( (caddr_t)addr + i, pagesize, &vec ) != -1 && (vec&1))
_exit(1);
/* Perform the mapping with MAP_FIXED set. This is safe
@@ -159,7 +159,7 @@ static int try_mmap_fixed (void *addr, s
}
}
-#endif /* (__svr4__ || __NetBSD__) && !MAP_TRYFIXED */
+#endif /* (__svr4__ || __NetBSD__ || __FreeBSD__ ) && !MAP_TRYFIXED */
/***********************************************************************
@@ -207,6 +207,13 @@ void *wine_anon_mmap( void *start, size_
#elif defined(__svr4__) || defined(__NetBSD__) || defined(__APPLE__)
if ( try_mmap_fixed( start, size, prot, flags, fdzero, 0 ) )
return start;
+#elif defined(__FreeBSD__)
+ /*for FreeBSD assure system heap adress of 0x80000000*/
+ if (start == (void *)0x80000000)
+ {
+ if (try_mmap_fixed( start, size, prot, flags, fdzero, 0 ) )
+ return start;
+ }
#endif
}
return mmap( start, size, prot, flags, fdzero, 0 );
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