Francois Gouget : configure: Load wine lower in memory on FreeBSD to leave more space for mmap() and malloc().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5f694ddf4c211c1c167a15541c2654175ce42a62
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=5f694ddf4c211c1c167a15541c...

Author: Francois Gouget <fgouget(a)free.fr>
Date:   Fri Nov 26 16:18:32 2010 +0100

configure: Load wine lower in memory on FreeBSD to leave more space for mmap() and malloc().

If not provided an explicit address, FreeBSD won't mmap any memory
below the executable. In particularly this means any memory below that
is unavailable to dlopen() and malloc().  This fixes the bug where
large WineLib binaries, in particular winetest, failed to load because
there was not enough space left for them and the native libraries they
linked to.  The drawback is that we can no longer load very large
Windows executables (between about 1.5 and 2 GB).

---

 configure    |    6 +++++-
 configure.ac |    6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 52d384f..d531667 100755
--- a/configure
+++ b/configure
@@ -6897,7 +6897,11 @@ eval ac_res=\$$as_ac_var
 	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
 if test `eval 'as_val=${'$as_ac_var'};$as_echo "$as_val"'` = yes; then :
-  LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x7bf00400"
+  case $host_os in
+                           freebsd*)  LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x60000400" ;;
+                           *) LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x7bf00400" ;;
+                           esac
+
 fi
           # Extract the first word of "prelink", so it can be a program name with args.
 set dummy prelink; ac_word=$2
diff --git a/configure.ac b/configure.ac
index c72e51b..de1ba7d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -792,7 +792,11 @@ case $host_os in
       case $host_cpu in
         *i[[3456789]]86* | x86_64)
           WINE_TRY_CFLAGS([-Wl,--section-start,.interp=0x7bf00400],
-                          [LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x7bf00400"])
+                          [case $host_os in
+                           freebsd*)  LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x60000400" ;;
+                           *) LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x7bf00400" ;;
+                           esac
+                          ])
           AC_PATH_PROG(PRELINK, prelink, false, [/sbin /usr/sbin $PATH])
           if test "x$PRELINK" = xfalse
           then