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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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.
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filename="mmap.patch"
--- mmap.orig Mon Jun 20 13:43:47 2005=0A=
+++ mmap.c Wed Jul 27 22:26:53 2005=0A=
@@ -59,7 +59,7 @@ static inline int munmap( void *ptr, siz=0A=
#endif=0A=
=0A=
=0A=
-#if (defined(__svr4__) || defined(__NetBSD__)) && !defined(MAP_TRYFIXED)=0A=
+#if (defined(__svr4__) || defined(__NetBSD__) || defined (__FreeBSD__)) =
&& !defined(MAP_TRYFIXED)=0A=
/***********************************************************************=0A=
* try_mmap_fixed=0A=
*=0A=
@@ -116,7 +116,7 @@ static int try_mmap_fixed (void *addr, s=0A=
If any of these calls succeeds, the page is already=0A=
mapped and we must fail. */=0A=
for ( i =3D 0; i < len; i +=3D pagesize )=0A=
- if ( mincore( (caddr_t)addr + i, pagesize, &vec ) !=3D -1 )=0A=
+ if ( mincore( (caddr_t)addr + i, pagesize, &vec ) !=3D -1 =
&& (vec&1))=0A=
_exit(1);=0A=
=0A=
/* Perform the mapping with MAP_FIXED set. This is safe=0A=
@@ -159,7 +159,7 @@ static int try_mmap_fixed (void *addr, s=0A=
}=0A=
}=0A=
=0A=
-#endif /* (__svr4__ || __NetBSD__) && !MAP_TRYFIXED */=0A=
+#endif /* (__svr4__ || __NetBSD__ || __FreeBSD__ ) && !MAP_TRYFIXED */=0A=
=0A=
=0A=
/***********************************************************************=0A=
@@ -207,6 +207,13 @@ void *wine_anon_mmap( void *start, size_=0A=
#elif defined(__svr4__) || defined(__NetBSD__) || defined(__APPLE__)=0A=
if ( try_mmap_fixed( start, size, prot, flags, fdzero, 0 ) )=0A=
return start;=0A=
+#elif defined(__FreeBSD__)=0A=
+ /*for FreeBSD assure system heap adress of 0x80000000*/=0A=
+ if (start =3D=3D (void *)0x80000000)=0A=
+ {=0A=
+ if (try_mmap_fixed( start, size, prot, flags, fdzero, 0 ) )=0A=
+ return start;=0A=
+ }=0A=
#endif=0A=
}=0A=
return mmap( start, size, prot, flags, fdzero, 0 );=0A=
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