main: force enabling of I/O thread

[qemu.git] / configure

diff --git a/configure b/configure
index 1340c33ef827d05914c6b114fd3eb6ea62fcca96..eba6fc611bef1680b3c4046a1602149312eafdf0 100755 (executable)
--- a/configure
+++ b/configure
@@ -165,7 +165,6 @@ darwin_user="no"
 bsd_user="no"
 guest_base=""
 uname_release=""
-io_thread="no"
 mixemu="no"
 aix="no"
 blobs="yes"
@@ -723,8 +722,6 @@ for opt do
   ;;
   --enable-attr) attr="yes"
   ;;
-  --enable-io-thread) io_thread="yes"
-  ;;
   --disable-blobs) blobs="no"
   ;;
   --with-pkgversion=*) pkgversion=" ($optarg)"
@@ -2158,12 +2155,6 @@ EOF
 
 if compile_prog "" "" ; then
   signalfd=yes
-elif test "$kvm" = "yes" -a "$io_thread" != "yes"; then
-  echo
-  echo "ERROR: Host kernel lacks signalfd() support,"
-  echo "but KVM depends on it when the IO thread is disabled."
-  echo
-  exit 1
 fi
 
 # check if eventfd is supported
@@ -2710,7 +2701,6 @@ echo "NPTL support      $nptl"
 echo "GUEST_BASE        $guest_base"
 echo "PIE user targets  $user_pie"
 echo "vde support       $vde"
-echo "IO thread         $io_thread"
 echo "Linux AIO support $linux_aio"
 echo "ATTR/XATTR support $attr"
 echo "Install blobs     $blobs"
@@ -2968,9 +2958,6 @@ if test "$xen" = "yes" ; then
   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
 fi
-if test "$io_thread" = "yes" ; then
-  echo "CONFIG_IOTHREAD=y" >> $config_host_mak
-fi
 if test "$linux_aio" = "yes" ; then
   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
 fi
@@ -3064,18 +3051,35 @@ bsd)
 ;;
 esac
 
+# use default implementation for tracing backend-specific routines
+trace_default=yes
 echo "TRACE_BACKEND=$trace_backend" >> $config_host_mak
-if test "$trace_backend" = "simple"; then
-  echo "CONFIG_SIMPLE_TRACE=y" >> $config_host_mak
+if test "$trace_backend" = "nop"; then
+  echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
 fi
-# Set the appropriate trace file.
 if test "$trace_backend" = "simple"; then
+  echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
+  trace_default=no
+  # Set the appropriate trace file.
   trace_file="\"$trace_file-\" FMT_pid"
 fi
-if test "$trace_backend" = "dtrace" -a "$trace_backend_stap" = "yes" ; then
-  echo "CONFIG_SYSTEMTAP_TRACE=y" >> $config_host_mak
+if test "$trace_backend" = "stderr"; then
+  echo "CONFIG_TRACE_STDERR=y" >> $config_host_mak
+  trace_default=no
+fi
+if test "$trace_backend" = "ust"; then
+  echo "CONFIG_TRACE_UST=y" >> $config_host_mak
+fi
+if test "$trace_backend" = "dtrace"; then
+  echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
+  if test "$trace_backend_stap" = "yes" ; then
+    echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
+  fi
 fi
 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
+if test "$trace_default" = "yes"; then
+  echo "CONFIG_TRACE_DEFAULT=y" >> $config_host_mak
+fi
 
 echo "TOOLS=$tools" >> $config_host_mak
 echo "ROMS=$roms" >> $config_host_mak
@@ -3600,7 +3604,7 @@ DIRS="$DIRS pc-bios/spapr-rtas"
 DIRS="$DIRS roms/seabios roms/vgabios"
 DIRS="$DIRS fsdev ui"
 DIRS="$DIRS qapi"
-DIRS="$DIRS qga"
+DIRS="$DIRS qga trace"
 FILES="Makefile tests/Makefile"
 FILES="$FILES tests/cris/Makefile tests/cris/.gdbinit"
 FILES="$FILES pc-bios/optionrom/Makefile pc-bios/keymaps"