qemu-char: correct return value from chr_read functions

[qemu.git] / configure

diff --git a/configure b/configure
index 20ef50dc32e5a4aea95aa3eb3810ec95a9ed08b5..51a6c5621c99f7f3623767f2b903143f99efee5f 100755 (executable)
--- a/configure
+++ b/configure
@@ -179,6 +179,7 @@ libattr=""
 xfs=""
 
 vhost_net="no"
+vhost_scsi="no"
 kvm="no"
 gprof="no"
 debug_tcg="no"
@@ -543,6 +544,7 @@ Haiku)
   usb="linux"
   kvm="yes"
   vhost_net="yes"
+  vhost_scsi="yes"
   if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
     audio_possible_drivers="$audio_possible_drivers fmod"
   fi
@@ -574,11 +576,6 @@ if test "$mingw32" = "yes" ; then
   QEMU_CFLAGS="-DWIN32_LEAN_AND_MEAN -DWINVER=0x501 $QEMU_CFLAGS"
   # enable C99/POSIX format strings (needs mingw32-runtime 3.15 or later)
   QEMU_CFLAGS="-D__USE_MINGW_ANSI_STDIO=1 $QEMU_CFLAGS"
-  if test "$cpu" = "i386"; then
-    # We need something better than i386 for __sync_val_compare_and_swap
-    # and can expect that QEMU will only run on i686 or later.
-    QEMU_CFLAGS="-march=i686 $QEMU_CFLAGS"
-  fi
   LIBS="-lwinmm -lws2_32 -liphlpapi $LIBS"
 cat > $TMPC << EOF
 int main(void) { return 0; }
@@ -875,6 +872,10 @@ for opt do
   ;;
   --enable-vhost-net) vhost_net="yes"
   ;;
+  --disable-vhost-scsi) vhost_scsi="no"
+  ;;
+  --enable-vhost-scsi) vhost_scsi="yes"
+  ;;
   --disable-glx) glx="no"
   ;;
   --enable-glx) glx="yes"
@@ -1326,9 +1327,33 @@ EOF
   fi
 fi
 
-#
+##########################################
+# __sync_fetch_and_and requires at least -march=i486. Many toolchains
+# use i686 as default anyway, but for those that don't, an explicit
+# specification is necessary
+
+if test "$cpu" = "i386"; then
+  cat > $TMPC << EOF
+static int sfaa(int *ptr)
+{
+  return __sync_fetch_and_and(ptr, 0);
+}
+
+int main(void)
+{
+  int val = 42;
+  sfaa(&val);
+  return val;
+}
+EOF
+  if ! compile_prog "" "" ; then
+    QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
+  fi
+fi
+
+#########################################
 # Solaris specific configure tool chain decisions
-#
+
 if test "$solaris" = "yes" ; then
   if has $install; then
     :
@@ -1467,6 +1492,7 @@ EOF
             "Make sure to have the zlib libs and headers installed."
     fi
 fi
+libs_softmmu="$libs_softmmu -lz"
 
 ##########################################
 # libseccomp check
@@ -3167,29 +3193,6 @@ if test "$trace_backend" = "dtrace"; then
   fi
 fi
 
-##########################################
-# __sync_fetch_and_and requires at least -march=i486. Many toolchains
-# use i686 as default anyway, but for those that don't, an explicit
-# specification is necessary
-if test "$vhost_net" = "yes" && test "$cpu" = "i386"; then
-  cat > $TMPC << EOF
-static int sfaa(int *ptr)
-{
-  return __sync_fetch_and_and(ptr, 0);
-}
-
-int main(void)
-{
-  int val = 42;
-  sfaa(&val);
-  return val;
-}
-EOF
-  if ! compile_prog "" "" ; then
-    QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
-  fi
-fi
-
 ##########################################
 # check and set a backend for coroutine
 
@@ -3556,6 +3559,7 @@ echo "sigev_thread_id   $sigev_thread_id"
 echo "uuid support      $uuid"
 echo "libcap-ng support $cap_ng"
 echo "vhost-net support $vhost_net"
+echo "vhost-scsi support $vhost_scsi"
 echo "Trace backend     $trace_backend"
 echo "Trace output file $trace_file-<pid>"
 echo "spice support     $spice ($spice_protocol_version/$spice_server_version)"
@@ -3607,8 +3611,18 @@ echo "qemu_helperdir=$libexecdir" >> $config_host_mak
 echo "extra_cflags=$EXTRA_CFLAGS" >> $config_host_mak
 echo "extra_ldflags=$EXTRA_LDFLAGS" >> $config_host_mak
 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
+echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
 
 echo "ARCH=$ARCH" >> $config_host_mak
+
+case "$cpu" in
+  i386|x86_64|ppc)
+    # The TCG interpreter currently does not support ld/st optimization.
+    if test "$tcg_interpreter" = "no" ; then
+        echo "CONFIG_QEMU_LDST_OPTIMIZATION=y" >> $config_host_mak
+    fi
+  ;;
+esac
 if test "$debug_tcg" = "yes" ; then
   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
 fi
@@ -3829,6 +3843,9 @@ fi
 if test "$virtfs" = "yes" ; then
   echo "CONFIG_VIRTFS=y" >> $config_host_mak
 fi
+if test "$vhost_scsi" = "yes" ; then
+  echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
+fi
 if test "$blobs" = "yes" ; then
   echo "INSTALL_BLOBS=yes" >> $config_host_mak
 fi
@@ -3880,6 +3897,7 @@ fi
 
 if test "$glx" = "yes" ; then
   echo "CONFIG_GLX=y" >> $config_host_mak
+  echo "GLX_LIBS=$glx_libs" >> $config_host_mak
 fi
 
 if test "$libiscsi" = "yes" ; then
@@ -4153,11 +4171,6 @@ bflt="no"
 target_nptl="no"
 interp_prefix1=`echo "$interp_prefix" | sed "s/%M/$target_arch2/g"`
 gdb_xml_files=""
-target_short_alignment=2
-target_int_alignment=4
-target_long_alignment=4
-target_llong_alignment=8
-target_libs_softmmu=
 
 TARGET_ARCH="$target_arch2"
 TARGET_BASE_ARCH=""
@@ -4168,10 +4181,8 @@ case "$target_arch2" in
   ;;
   x86_64)
     TARGET_BASE_ARCH=i386
-    target_long_alignment=8
   ;;
   alpha)
-    target_long_alignment=8
     target_nptl="yes"
   ;;
   arm|armeb)
@@ -4179,20 +4190,15 @@ case "$target_arch2" in
     bflt="yes"
     target_nptl="yes"
     gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
-    target_llong_alignment=4
   ;;
   cris)
     target_nptl="yes"
   ;;
   lm32)
-    target_libs_softmmu="$glx_libs"
   ;;
   m68k)
     bflt="yes"
     gdb_xml_files="cf-core.xml cf-fp.xml"
-    target_int_alignment=2
-    target_long_alignment=2
-    target_llong_alignment=2
   ;;
   microblaze|microblazeel)
     TARGET_ARCH=microblaze
@@ -4214,7 +4220,6 @@ case "$target_arch2" in
     TARGET_ARCH=mips64
     TARGET_BASE_ARCH=mips
     echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
-    target_long_alignment=8
   ;;
   moxie)
   ;;
@@ -4236,7 +4241,6 @@ case "$target_arch2" in
     TARGET_BASE_ARCH=ppc
     TARGET_ABI_DIR=ppc
     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
-    target_long_alignment=8
   ;;
   ppc64abi32)
     TARGET_ARCH=ppc64
@@ -4254,7 +4258,6 @@ case "$target_arch2" in
   ;;
   sparc64)
     TARGET_BASE_ARCH=sparc
-    target_long_alignment=8
   ;;
   sparc32plus)
     TARGET_ARCH=sparc64
@@ -4264,7 +4267,6 @@ case "$target_arch2" in
   ;;
   s390x)
     target_nptl="yes"
-    target_long_alignment=8
   ;;
   unicore32)
   ;;
@@ -4286,19 +4288,6 @@ upper() {
     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
 }
 
-case "$cpu" in
-  i386|x86_64|ppc)
-    # The TCG interpreter currently does not support ld/st optimization.
-    if test "$tcg_interpreter" = "no" ; then
-        echo "CONFIG_QEMU_LDST_OPTIMIZATION=y" >> $config_target_mak
-    fi
-  ;;
-esac
-
-echo "TARGET_SHORT_ALIGNMENT=$target_short_alignment" >> $config_target_mak
-echo "TARGET_INT_ALIGNMENT=$target_int_alignment" >> $config_target_mak
-echo "TARGET_LONG_ALIGNMENT=$target_long_alignment" >> $config_target_mak
-echo "TARGET_LLONG_ALIGNMENT=$target_llong_alignment" >> $config_target_mak
 echo "TARGET_ARCH=$TARGET_ARCH" >> $config_target_mak
 target_arch_name="`upper $TARGET_ARCH`"
 echo "TARGET_$target_arch_name=y" >> $config_target_mak
@@ -4316,12 +4305,9 @@ case "$target_arch2" in
       if test "$xen_pci_passthrough" = yes; then
         echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
       fi
-    else
-      echo "CONFIG_NO_XEN=y" >> $config_target_mak
     fi
     ;;
   *)
-    echo "CONFIG_NO_XEN=y" >> $config_target_mak
 esac
 case "$target_arch2" in
   arm|i386|x86_64|ppcemb|ppc|ppc64|s390x)
@@ -4349,7 +4335,6 @@ if test "$target_bigendian" = "yes" ; then
 fi
 if test "$target_softmmu" = "yes" ; then
   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
-  echo "LIBS+=$libs_softmmu $target_libs_softmmu" >> $config_target_mak
   case "$target_arch2" in
     i386|x86_64)
       echo "CONFIG_HAVE_CORE_DUMP=y" >> $config_target_mak