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[Qemu-devel] [PULL 09/21] configure: use pkg-config for obtaining xen ve
From: |
Stefano Stabellini |
Subject: |
[Qemu-devel] [PULL 09/21] configure: use pkg-config for obtaining xen version |
Date: |
Fri, 21 Apr 2017 13:14:50 -0700 |
From: Juergen Gross <address@hidden>
Instead of trying to guess the Xen version to use by compiling various
test programs first just ask the system via pkg-config. Only if it
can't return the version fall back to the test program scheme.
If configure is being called with dedicated flags for the Xen libraries
use those instead of the pkg-config output. This will avoid breaking
an in-tree Xen build of an old Xen version while a new Xen version is
installed on the build machine: pkg-config would pick up the installed
Xen config files as the Xen tree wouldn't contain any of them.
Signed-off-by: Juergen Gross <address@hidden>
Signed-off-by: Stefano Stabellini <address@hidden>
Tested-by: Paul Durrant <address@hidden>
Reviewed-by: Stefano Stabellini <address@hidden>
---
configure | 159 ++++++++++++++++++++++++++++++++++----------------------------
1 file changed, 88 insertions(+), 71 deletions(-)
diff --git a/configure b/configure
index 271bea8..3133ef8 100755
--- a/configure
+++ b/configure
@@ -1975,30 +1975,46 @@ fi
# xen probe
if test "$xen" != "no" ; then
- xen_libs="-lxenstore -lxenctrl -lxenguest"
- xen_stable_libs="-lxencall -lxenforeignmemory -lxengnttab -lxenevtchn"
+ # Check whether Xen library path is specified via --extra-ldflags to avoid
+ # overriding this setting with pkg-config output. If not, try pkg-config
+ # to obtain all needed flags.
+
+ if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
+ $pkg_config --exists xencontrol ; then
+ xen_ctrl_version="$(printf '%d%02d%02d' \
+ $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
+ xen=yes
+ xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
+ xen_pc="$xen_pc xenevtchn xendevicemodel"
+ QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags $xen_pc)"
+ libs_softmmu="$($pkg_config --libs $xen_pc) $libs_softmmu"
+ LDFLAGS="$($pkg_config --libs $xen_pc) $LDFLAGS"
+ else
- # First we test whether Xen headers and libraries are available.
- # If no, we are done and there is no Xen support.
- # If yes, more tests are run to detect the Xen version.
+ xen_libs="-lxenstore -lxenctrl -lxenguest"
+ xen_stable_libs="-lxencall -lxenforeignmemory -lxengnttab -lxenevtchn"
- # Xen (any)
- cat > $TMPC <<EOF
+ # First we test whether Xen headers and libraries are available.
+ # If no, we are done and there is no Xen support.
+ # If yes, more tests are run to detect the Xen version.
+
+ # Xen (any)
+ cat > $TMPC <<EOF
#include <xenctrl.h>
int main(void) {
return 0;
}
EOF
- if ! compile_prog "" "$xen_libs" ; then
- # Xen not found
- if test "$xen" = "yes" ; then
- feature_not_found "xen" "Install xen devel"
- fi
- xen=no
+ if ! compile_prog "" "$xen_libs" ; then
+ # Xen not found
+ if test "$xen" = "yes" ; then
+ feature_not_found "xen" "Install xen devel"
+ fi
+ xen=no
- # Xen unstable
- elif
- cat > $TMPC <<EOF &&
+ # Xen unstable
+ elif
+ cat > $TMPC <<EOF &&
#undef XC_WANT_COMPAT_DEVICEMODEL_API
#define __XEN_TOOLS__
#include <xendevicemodel.h>
@@ -2011,13 +2027,13 @@ int main(void) {
return 0;
}
EOF
- compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
- then
- xen_stable_libs="-lxendevicemodel $xen_stable_libs"
- xen_ctrl_version=40900
- xen=yes
- elif
- cat > $TMPC <<EOF &&
+ compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
+ then
+ xen_stable_libs="-lxendevicemodel $xen_stable_libs"
+ xen_ctrl_version=40900
+ xen=yes
+ elif
+ cat > $TMPC <<EOF &&
/*
* If we have stable libs the we don't want the libxc compat
* layers, regardless of what CFLAGS we may have been given.
@@ -2067,12 +2083,12 @@ int main(void) {
return 0;
}
EOF
- compile_prog "" "$xen_libs $xen_stable_libs"
- then
- xen_ctrl_version=40800
- xen=yes
- elif
- cat > $TMPC <<EOF &&
+ compile_prog "" "$xen_libs $xen_stable_libs"
+ then
+ xen_ctrl_version=40800
+ xen=yes
+ elif
+ cat > $TMPC <<EOF &&
/*
* If we have stable libs the we don't want the libxc compat
* layers, regardless of what CFLAGS we may have been given.
@@ -2118,12 +2134,12 @@ int main(void) {
return 0;
}
EOF
- compile_prog "" "$xen_libs $xen_stable_libs"
- then
- xen_ctrl_version=40701
- xen=yes
- elif
- cat > $TMPC <<EOF &&
+ compile_prog "" "$xen_libs $xen_stable_libs"
+ then
+ xen_ctrl_version=40701
+ xen=yes
+ elif
+ cat > $TMPC <<EOF &&
#include <xenctrl.h>
#include <stdint.h>
int main(void) {
@@ -2133,14 +2149,14 @@ int main(void) {
return 0;
}
EOF
- compile_prog "" "$xen_libs"
- then
- xen_ctrl_version=40700
- xen=yes
-
- # Xen 4.6
- elif
- cat > $TMPC <<EOF &&
+ compile_prog "" "$xen_libs"
+ then
+ xen_ctrl_version=40700
+ xen=yes
+
+ # Xen 4.6
+ elif
+ cat > $TMPC <<EOF &&
#include <xenctrl.h>
#include <xenstore.h>
#include <stdint.h>
@@ -2161,14 +2177,14 @@ int main(void) {
return 0;
}
EOF
- compile_prog "" "$xen_libs"
- then
- xen_ctrl_version=40600
- xen=yes
-
- # Xen 4.5
- elif
- cat > $TMPC <<EOF &&
+ compile_prog "" "$xen_libs"
+ then
+ xen_ctrl_version=40600
+ xen=yes
+
+ # Xen 4.5
+ elif
+ cat > $TMPC <<EOF &&
#include <xenctrl.h>
#include <xenstore.h>
#include <stdint.h>
@@ -2188,13 +2204,13 @@ int main(void) {
return 0;
}
EOF
- compile_prog "" "$xen_libs"
- then
- xen_ctrl_version=40500
- xen=yes
+ compile_prog "" "$xen_libs"
+ then
+ xen_ctrl_version=40500
+ xen=yes
- elif
- cat > $TMPC <<EOF &&
+ elif
+ cat > $TMPC <<EOF &&
#include <xenctrl.h>
#include <xenstore.h>
#include <stdint.h>
@@ -2213,24 +2229,25 @@ int main(void) {
return 0;
}
EOF
- compile_prog "" "$xen_libs"
- then
- xen_ctrl_version=40200
- xen=yes
+ compile_prog "" "$xen_libs"
+ then
+ xen_ctrl_version=40200
+ xen=yes
- else
- if test "$xen" = "yes" ; then
- feature_not_found "xen (unsupported version)" \
- "Install a supported xen (xen 4.2 or newer)"
+ else
+ if test "$xen" = "yes" ; then
+ feature_not_found "xen (unsupported version)" \
+ "Install a supported xen (xen 4.2 or newer)"
+ fi
+ xen=no
fi
- xen=no
- fi
- if test "$xen" = yes; then
- if test $xen_ctrl_version -ge 40701 ; then
- libs_softmmu="$xen_stable_libs $libs_softmmu"
+ if test "$xen" = yes; then
+ if test $xen_ctrl_version -ge 40701 ; then
+ libs_softmmu="$xen_stable_libs $libs_softmmu"
+ fi
+ libs_softmmu="$xen_libs $libs_softmmu"
fi
- libs_softmmu="$xen_libs $libs_softmmu"
fi
fi
--
1.9.1
- [Qemu-devel] [PULL 0/21] Please pull xen-20170421-tag for 2.10, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 01/21] xen: make use of xen_xc implicit in xen_common.h inlines, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 02/21] xen: rename xen_modified_memory() to xen_hvm_modified_memory(), Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 04/21] configure: detect presence of libxendevicemodel, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 03/21] xen: create wrappers for all other uses of xc_hvm_XXX() functions, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 05/21] xen: use libxendevicemodel when available, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 06/21] xen: use 5 digit xen versions, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 07/21] xen: use libxendevice model to restrict operations, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 08/21] xen: additionally restrict xenforeignmemory operations, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 09/21] configure: use pkg-config for obtaining xen version,
Stefano Stabellini <=
- [Qemu-devel] [PULL 11/21] 9p: introduce a type for the 9p header, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 10/21] xen: import ring.h from xen, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 12/21] xen/9pfs: introduce Xen 9pfs backend, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 13/21] xen/9pfs: connect to the frontend, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 14/21] xen/9pfs: receive requests from the frontend, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 16/21] xen/9pfs: send responses back to the frontend, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 15/21] xen/9pfs: implement in/out_iov_from_pdu and vmarshal/vunmarshal, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 17/21] xen/9pfs: build and register Xen 9pfs backend, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 18/21] add xen-9p-backend to MAINTAINERS under Xen, Stefano Stabellini, 2017/04/21
- [Qemu-devel] [PULL 19/21] move xen-common.c to hw/xen/, Stefano Stabellini, 2017/04/21