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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] xen: enable stubdom on a per arch basis
On Thu, 2013-01-31 at 10:52 +0000, Samuel Thibault wrote:
> Ian Campbell, le Thu 31 Jan 2013 10:46:31 +0000, a Ãcrit :
> > ... and disable on ARM (for now).
>
> Well, maybe we should rather use an "inclusion" list rather than an
> "exclusion" list, since it essentially depends on which arch mini-os was
> ported to.
Hrm, yes, I was thinking that ARM was the exception but you are right,
it makes more sense to consider x86 the exception (in that it has had
mini-os ported to it).
8<------------------
From 876a991cb2f8efa8076f3089382d0c453c96b68e Mon Sep 17 00:00:00 2001
From: Ian Campbell <ian.campbell@xxxxxxxxxx>
Date: Thu, 31 Jan 2013 10:00:40 +0000
Subject: [PATCH] xen: enable stubdom on a per arch basis
... and disable on ARM (for now).
Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: Roger Pau Monne <roger.pau@xxxxxxxxxx>
Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Cc: Tim (Xen.org) <tim@xxxxxxx>
---
v2: whitelist x86 (which has mini-os ported) instead of blacklisting
ARM
---
configure | 292 ++++++++++++++++++++++++++++++++++++++++++++++++++-----
configure.ac | 15 +++-
m4/subsystem.m4 | 65 ++++++++++---
3 files changed, 333 insertions(+), 39 deletions(-)
diff --git a/configure b/configure
index c2ec87d..69803a7 100755
--- a/configure
+++ b/configure
@@ -568,6 +568,14 @@ tools
kernels
xen
subdirs
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
target_alias
host_alias
build_alias
@@ -1220,6 +1228,10 @@ Fine tuning of the installation directories:
_ACEOF
cat <<\_ACEOF
+
+System types:
+ --build=BUILD configure for building on BUILD [guessed]
+ --host=HOST cross-compile to build programs to run on HOST [BUILD]
_ACEOF
fi
@@ -1236,7 +1248,7 @@ Optional Features:
--disable-xen Disable build and install of xen
--disable-kernels Disable build and install of kernels
--disable-tools Disable build and install of tools
- --disable-stubdom Disable build and install of stubdom
+ --enable-stubdom Enable build and install of stubdom
--disable-docs Disable build and install of docs
Report bugs to <xen-devel@xxxxxxxxxxxxx>.
@@ -1673,20 +1685,6 @@ ac_config_files="$ac_config_files ./config/Toplevel.mk"
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ac_aux_dir=
for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
if test -f "$ac_dir/install-sh"; then
@@ -1716,22 +1714,151 @@ ac_config_sub="$SHELL $ac_aux_dir/config.sub" #
Please don't use this var.
ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+ as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if test "${ac_cv_build+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+ ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+ as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+ as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed"
"$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5 ;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if test "${ac_cv_host+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test "x$host_alias" = x; then
+ ac_cv_host=$ac_cv_build
+else
+ ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+ as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed"
"$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5 ;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+case "$host_cpu" in
+ i[3456]86|x86_64)
+ arch_enable_stubdom=y
+ ;;
+ *)
+ arch_enable_stubdom=n
+ ;;
+esac
+
# Check whether --enable-xen was given.
if test "${enable_xen+set}" = set; then :
enableval=$enable_xen;
+
+if test "x$enableval" = "xyes"; then :
+
+
+xen=y
+SUBSYSTEMS="$SUBSYSTEMS xen"
+
+
+else
+
+if test "x$enableval" = "xno"; then :
+
+
xen=n
+
+fi
+
+fi
+
+
else
+
xen=y
SUBSYSTEMS="$SUBSYSTEMS xen"
-if test -e "xen/configure"; then :
-subdirs="$subdirs xen"
+fi
+
+
+if test -e "xen/configure"; then :
+
+if test "x$xen" = "xy" || test "x$xen" = "x" ; then
+ subdirs="$subdirs xen"
fi
@@ -1743,16 +1870,41 @@ fi
# Check whether --enable-kernels was given.
if test "${enable_kernels+set}" = set; then :
enableval=$enable_kernels;
+
+if test "x$enableval" = "xyes"; then :
+
+
+kernels=y
+SUBSYSTEMS="$SUBSYSTEMS kernels"
+
+
+else
+
+if test "x$enableval" = "xno"; then :
+
+
kernels=n
+
+fi
+
+fi
+
+
else
+
kernels=y
SUBSYSTEMS="$SUBSYSTEMS kernels"
-if test -e "kernels/configure"; then :
-subdirs="$subdirs kernels"
+fi
+
+
+if test -e "kernels/configure"; then :
+
+if test "x$kernels" = "xy" || test "x$kernels" = "x" ; then
+ subdirs="$subdirs kernels"
fi
@@ -1764,16 +1916,41 @@ fi
# Check whether --enable-tools was given.
if test "${enable_tools+set}" = set; then :
enableval=$enable_tools;
+
+if test "x$enableval" = "xyes"; then :
+
+
+tools=y
+SUBSYSTEMS="$SUBSYSTEMS tools"
+
+
+else
+
+if test "x$enableval" = "xno"; then :
+
+
tools=n
+
+fi
+
+fi
+
+
else
+
tools=y
SUBSYSTEMS="$SUBSYSTEMS tools"
-if test -e "tools/configure"; then :
-subdirs="$subdirs tools"
+fi
+
+
+if test -e "tools/configure"; then :
+
+if test "x$tools" = "xy" || test "x$tools" = "x" ; then
+ subdirs="$subdirs tools"
fi
@@ -1785,38 +1962,98 @@ fi
# Check whether --enable-stubdom was given.
if test "${enable_stubdom+set}" = set; then :
enableval=$enable_stubdom;
+
+if test "x$enableval" = "xyes"; then :
+
+
+stubdom=y
+SUBSYSTEMS="$SUBSYSTEMS stubdom"
+
+
+else
+
+if test "x$enableval" = "xno"; then :
+
+
stubdom=n
+
+fi
+
+fi
+
+
else
+if test "x$arch_enable_stubdom" = "xy"; then :
+
+
stubdom=y
SUBSYSTEMS="$SUBSYSTEMS stubdom"
-if test -e "stubdom/configure"; then :
-subdirs="$subdirs stubdom"
+
+else
+
+
+stubdom=n
fi
+if test -e "stubdom/configure"; then :
+
+if test "x$stubdom" = "xy" || test "x$stubdom" = "x" ; then
+ subdirs="$subdirs stubdom"
+
+fi
+
fi
+fi
+
+
# Check whether --enable-docs was given.
if test "${enable_docs+set}" = set; then :
enableval=$enable_docs;
+
+if test "x$enableval" = "xyes"; then :
+
+
+docs=y
+SUBSYSTEMS="$SUBSYSTEMS docs"
+
+
+else
+
+if test "x$enableval" = "xno"; then :
+
+
docs=n
+
+fi
+
+fi
+
+
else
+
docs=y
SUBSYSTEMS="$SUBSYSTEMS docs"
-if test -e "docs/configure"; then :
-subdirs="$subdirs docs"
+
+fi
+if test -e "docs/configure"; then :
+
+if test "x$docs" = "xy" || test "x$docs" = "x" ; then
+ subdirs="$subdirs docs"
+
fi
fi
@@ -1826,6 +2063,11 @@ fi
+echo "Will build the following subsystems:"
+for x in $SUBSYSTEMS; do
+ echo " $x"
+done
+
cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
diff --git a/configure.ac b/configure.ac
index df1d5da..83342f7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,14 +8,27 @@ AC_CONFIG_SRCDIR([./xen/common/kernel.c])
AC_CONFIG_FILES([./config/Toplevel.mk])
AC_PREFIX_DEFAULT([/usr])
+AC_CANONICAL_HOST
+
m4_include([m4/features.m4])
m4_include([m4/subsystem.m4])
+dnl mini-os is only ported to certain platforms
+case "$host_cpu" in
+ i[[3456]]86|x86_64)
+ arch_enable_stubdom=y
+ ;;
+ *)
+ arch_enable_stubdom=n
+ ;;
+esac
+
AX_SUBSYSTEM_DEFAULT_ENABLE([xen])
AX_SUBSYSTEM_DEFAULT_ENABLE([kernels])
AX_SUBSYSTEM_DEFAULT_ENABLE([tools])
-AX_SUBSYSTEM_DEFAULT_ENABLE([stubdom])
+AX_SUBSYSTEM_CONDITIONAL([stubdom], $arch_enable_stubdom)
AX_SUBSYSTEM_DEFAULT_ENABLE([docs])
+
AX_SUBSYSTEM_FINISH
AC_OUTPUT()
diff --git a/m4/subsystem.m4 b/m4/subsystem.m4
index d3eb8c9..9e1e61f 100644
--- a/m4/subsystem.m4
+++ b/m4/subsystem.m4
@@ -1,32 +1,71 @@
+AC_DEFUN([AX_ENABLE_SUBSYSTEM], [
+$1=y
+SUBSYSTEMS="$SUBSYSTEMS $1"
+])
+
+AC_DEFUN([AX_DISABLE_SUBSYSTEM], [
+$1=n
+])
+
AC_DEFUN([AX_SUBSYSTEM_DEFAULT_ENABLE], [
AC_ARG_ENABLE([$1],
AS_HELP_STRING([--disable-$1], [Disable build and install of $1]),[
-$1=n
+AX_SUBSYSTEM_INTERNAL([$1])
],[
-$1=y
-SUBSYSTEMS="$SUBSYSTEMS $1"
-AS_IF([test -e "$1/configure"], [
-AC_CONFIG_SUBDIRS([$1])
+AX_ENABLE_SUBSYSTEM([$1])
])
-])
-AC_SUBST($1)
+AX_SUBSYSTEM_CONFIGURE([$1])
+AC_SUBST([$1])
])
AC_DEFUN([AX_SUBSYSTEM_DEFAULT_DISABLE], [
AC_ARG_ENABLE([$1],
AS_HELP_STRING([--enable-$1], [Enable build and install of $1]),[
-$1=y
-SUBSYSTEMS="$SUBSYSTEMS $1"
-AS_IF([test -e "$1/configure"], [
-AC_CONFIG_SUBDIRS([$1])
+AX_SUBSYSTEM_INTERNAL([$1])
+],[
+AX_DISABLE_SUBSYSTEM([$1])
])
+AX_SUBSYSTEM_CONFIGURE([$1])
+AC_SUBST([$1])
+])
+
+AC_DEFUN([AX_SUBSYSTEM_CONDITIONAL], [
+AC_ARG_ENABLE([$1],
+AS_HELP_STRING([--enable-$1], [Enable build and install of $1]),[
+AX_SUBSYSTEM_INTERNAL([$1])
],[
-$1=n
+AS_IF([test "x$2" = "xy"],[
+AX_ENABLE_SUBSYSTEM([$1])
+],[
+AX_DISABLE_SUBSYSTEM([$1])
])
+AX_SUBSYSTEM_CONFIGURE([$1])
AC_SUBST($1)
])
-
+])
AC_DEFUN([AX_SUBSYSTEM_FINISH], [
AC_SUBST(SUBSYSTEMS)
+echo "Will build the following subsystems:"
+for x in $SUBSYSTEMS; do
+ echo " $x"
+done
+])
+
+AC_DEFUN([AX_SUBSYSTEM_INTERNAL], [
+AS_IF([test "x$enableval" = "xyes"], [
+AX_ENABLE_SUBSYSTEM([$1])
+],[
+AS_IF([test "x$enableval" = "xno"],[
+AX_DISABLE_SUBSYSTEM([$1])
+])
+])
+])
+
+AC_DEFUN([AX_SUBSYSTEM_CONFIGURE], [
+AS_IF([test -e "$1/configure"], [
+if test "x$$1" = "xy" || test "x$$1" = "x" ; then
+ AC_CONFIG_SUBDIRS([$1])
+fi
+])
])
--
1.7.2.5
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