[libvirt] [PATCH 2/2] Addition of XenAPI support to libvirt

Matthias Bolte matthias.bolte at googlemail.com
Thu Mar 4 20:01:19 UTC 2010


2010/2/26 Sharadha Prabhakar (3P) <sharadha.prabhakar at citrix.com>:
> This is the last patch in this series. It contains changes made to the following files.
> ~/libvirt/configure.ac
> ~/libvirt/src/Makefile.am
> ~/libvirt/src/util/virterror.c
> ~/libvirt/src/driver.h
> ~/libvirt/include/libvirt/virterror.h
> ~/libvirt/virterror.c
>
>
> --- ./libvirt_org/configure.ac  2010-02-17 17:39:21.000000000 +0000
> +++ ./libvirt/configure.ac      2010-02-26 11:18:47.000000000 +0000
> @@ -219,6 +219,8 @@
>   AC_HELP_STRING([--with-libssh2=@<:@PFX@:>@], [libssh2 location @<:@default=/usr/local/lib@:>@]),[],[with_libssh2=yes])
>  AC_ARG_WITH([phyp],
>   AC_HELP_STRING([--with-phyp], [add PHYP support @<:@default=check@:>@]),[],[with_phyp=check])
> +AC_ARG_WITH([xenapi],
> +  AC_HELP_STRING([--with-xenapi], [add XenAPI support @<:@default=yes@:>@]),[],[with_xenapi=check])

The actual default and the printed one mismatch. change default=yes to
default=check

>  AC_ARG_WITH([vbox],
>   AC_HELP_STRING([--with-vbox], [add VirtualBox support @<:@default=yes@:>@]),[],[with_vbox=yes])
>  AC_ARG_WITH([lxc],
> @@ -307,6 +309,7 @@
>  fi
>  AM_CONDITIONAL([WITH_VBOX], [test "$with_vbox" = "yes"])
>
> +
>  if test "$with_libvirtd" = "no" ; then
>   with_qemu=no
>  fi
> @@ -335,6 +338,49 @@
>  fi
>  AM_CONDITIONAL([WITH_LIBVIRTD], [test "$with_libvirtd" = "yes"])
>
> +
> +old_LIBS="$LIBS"
> +old_CFLAGS="$CFLAGS"
> +LIBXENSERVER_LIBS=""
> +LIBXENSERVER_CFLAGS=""
> +LIBXENSERVER_LDFLAGS=""
> +dnl search for the XenServer library
> +if test "$with_xenapi" != "no" ; then
> +    if test "$with_xenapi" != "yes" -a "$with_xenapi" != "check" ; then
> +        LIBXENSERVER_CFLAGS="-I$with_xenapi/include"
> +        LIBXENSERVER_LDFLAGS="$with_xenapi/libxenserver.so"

Why do you add the path to an .so file to the LDFLAGS?

> +        LIBXENSERVER_LIBS="-L$with_xenapi -lxenserver"
> +    fi
> +    fail=0
> +    CFLAGS="$CFLAGS $LIBXENSERVER_CFLAGS"
> +    LIBS="$LIBS $LIBXENSERVER_LIBS"
> +    AC_CHECK_LIB([xen_vm_start], [xs_read], [

I'm not sure that I understand what you're doing here. You're checking
for a xs_read function in a xen_vm_start library.

> +           with_xenapi=yes
> +           LIBXENSERVER_LIBS="$LIBXENSERVER_LIBS -lxenstore"

Do you really need xenstore?

> +       ],[
> +           if test "$with_xenapi" = "yes"; then
> +               fail=1
> +           fi
> +           with_xenapi=no
> +       ])
> +fi
> +
> +LIBS="$old_LIBS"
> +CFLAGS="$old_CFLAGS"
> +
> +if test $fail = 1; then
> +    AC_MSG_ERROR([You must install the XenServer Library to compile XenAPI driver with -lxenserver])
> +fi
> +
> +if test "$with_xenapi" = "yes"; then
> +    AC_DEFINE_UNQUOTED([WITH_XENAPI], 1, [whether Xen driver is enabled])

'XenAPI driver' instead of 'Xen driver'

> +fi
> +
> +AC_SUBST([LIBXENSERVER_CFLAGS])
> +AC_SUBST([LIBXENSERVER_LIBS])
> +AC_SUBST([LIBXENSERVER_LDFLAGS])
> +
> +



>  old_LIBS="$LIBS"
>  old_CFLAGS="$CFLAGS"
>  XEN_LIBS=""
> @@ -1447,23 +1493,31 @@
>  LIBCURL_LIBS=""
>  LIBCURL_FOUND="no"
>
> -if test "$with_esx" = "yes" -o "$with_esx" = "check"; then
> +if test "$with_esx" = "yes" -o "$with_esx" = "check" -o "$with_xenapi" = "yes" -o "$with_xenapi" = "check"; then
>     PKG_CHECK_MODULES(LIBCURL, libcurl >= $LIBCURL_REQUIRED, [
>         LIBCURL_FOUND=yes
>         with_esx="yes"
> +        with_xenapi="yes"

This part should be split into an ESX and XenAPI part. Otherwise you
may change with_esx="no" to with_esx="yes" just because libcurl was
found.

>     ], [
> -        if test "$with_esx" = "check"; then
> +        if test "$with_esx" = "check" -o "$with_xenapi" = "check"; then
>             with_esx=no
> -            AC_MSG_NOTICE([libcurl is required for ESX driver, disabling it])
> +            with_xenapi=no
> +            AC_MSG_NOTICE([libcurl is required for ESX/XENAPI driver, disabling it])
>         else
> -            AC_MSG_ERROR([libcurl >= $LIBCURL_REQUIRED is required for the ESX driver])
> +            AC_MSG_ERROR([libcurl >= $LIBCURL_REQUIRED is required for the ESX/XENAPI driver])
>         fi

Also this part should be split into an ESX and XenAPI part.

>     ])
>  fi
>  if test "$with_esx" = "yes" ; then
>     AC_DEFINE_UNQUOTED([WITH_ESX], 1, [whether ESX driver is enabled])
>  fi
> +
> +if test "$with_xenapi" = "yes" ; then
> +    AC_DEFINE_UNQUOTED([WITH_XENAPI], 1, [whether XenAPI driver is enabled])
> +fi
> +
>  AM_CONDITIONAL([WITH_ESX], [test "$with_esx" = "yes"])
> +AM_CONDITIONAL([WITH_XENAPI], [test "$with_xenapi" = "yes"])
>  AC_SUBST([LIBCURL_CFLAGS])
>  AC_SUBST([LIBCURL_LIBS])

I suggest to restructure this tests like this:




dnl
dnl check for libcurl (ESX/XenAPI)
dnl

LIBCURL_CFLAGS=""
LIBCURL_LIBS=""

if test "$with_esx" = "yes" -o "$with_esx" = "check" -o "$with_xenapi"
= "yes" -o "$with_xenapi" = "check"; then
    PKG_CHECK_MODULES(LIBCURL, libcurl >= $LIBCURL_REQUIRED, [
        if test "$with_esx" = "check"; then
            with_esx=yes
        fi

        if test "$with_xenapi" = "check"; then
            with_xenapi=yes
        fi
    ], [
        if test "$with_esx" = "check"; then
            with_esx=no
            AC_MSG_NOTICE([libcurl is required for the ESX driver,
disabling it])
        elif test "$with_esx" = "yes"; then
            AC_MSG_ERROR([libcurl >= $LIBCURL_REQUIRED is required for
the ESX driver])
        fi

        if test "$with_xenapi" = "check"; then
            with_xenapi=no
            AC_MSG_NOTICE([libcurl is required for the XenAPI driver,
disabling it])
        elif test "$with_xenapi" = "yes"; then
            AC_MSG_ERROR([libcurl >= $LIBCURL_REQUIRED is required for
the XenAPI driver])
        fi
    ])
fi


if test "$with_esx" = "yes" ; then
    AC_DEFINE_UNQUOTED([WITH_ESX], 1, [whether ESX driver is enabled])
fi
AM_CONDITIONAL([WITH_ESX], [test "$with_esx" = "yes"])


if test "$with_xenapi" = "yes" ; then
    AC_DEFINE_UNQUOTED([WITH_XENAPI], 1, [whether XenAPI driver is enabled])
fi
AM_CONDITIONAL([WITH_XENAPI], [test "$with_xenapi" = "yes"])


AC_SUBST([LIBCURL_CFLAGS])
AC_SUBST([LIBCURL_LIBS])




> @@ -1894,6 +1948,7 @@
>  AC_MSG_NOTICE([     UML: $with_uml])
>  AC_MSG_NOTICE([  OpenVZ: $with_openvz])
>  AC_MSG_NOTICE([    VBox: $with_vbox])
> +AC_MSG_NOTICE([  XenAPI: $with_xenapi])
>  AC_MSG_NOTICE([     LXC: $with_lxc])
>  AC_MSG_NOTICE([    PHYP: $with_phyp])
>  AC_MSG_NOTICE([     ONE: $with_one])
> @@ -1992,6 +2047,12 @@
>  else
>  AC_MSG_NOTICE([     xen: no])
>  fi
> +if test "$with_xenapi" = "yes" ; then
> +AC_MSG_NOTICE([     xenapi:  $LIBXENSERVER_CFLAGS  $LIBXENSERVER_LIBS  $LIBXENSERVER_LDFLAGS])
> +else
> +AC_MSG_NOTICE([     xen: no])

'xenapi: no' instead of 'xen: no'.

> +fi
>  if test "$with_hal" = "yes" ; then
>  AC_MSG_NOTICE([     hal: $HAL_CFLAGS $HAL_LIBS])
>  else
> --- ./libvirt_org/src/Makefile.am       2010-02-17 17:38:13.000000000 +0000
> +++ ./libvirt/src/Makefile.am   2010-02-26 13:13:59.000000000 +0000
> @@ -205,6 +207,11 @@
>                qemu/qemu_security_dac.h                        \
>                qemu/qemu_security_dac.c
>
> +XENAPI_DRIVER_SOURCES =                                         \
> +                xenapi/xenapi_driver.c xenapi/xenapi_driver.h   \
> +                xenapi_driver_private.h                         \
> +                xenapi/xenapi_utils.c xenapi/xenapi_utils.h
> +
>  UML_DRIVER_SOURCES =                                           \
>                uml/uml_conf.c uml/uml_conf.h                   \
>                uml/uml_driver.c uml/uml_driver.h
> @@ -466,6 +473,30 @@
>  libvirt_driver_vbox_la_SOURCES = $(VBOX_DRIVER_SOURCES)
>  endif
>
> +if WITH_XENAPI
> +if WITH_DRIVER_MODULES
> +mod_LTLIBRARIES += libvirt_driver_xenapi.la
> +else
> +noinst_LTLIBRARIES += libvirt_driver_xenapi.la
> +
> +libvirt_la_LIBADD += libvirt_driver_xenapi.la   \
> +                     $(LIBXENSERVER_LDFLAGS)

LIBXENSERVER_LDFLAGS is not necessary here. Adding LIBXENSERVER_LIBS
to libvirt_driver_xenapi_la_LDFLAGS some lines below should be enough.

Matthias




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