# is compiler binary to execute.
local compiler="$1"
shift
+ if test -n "$BASH_VERSION"; then eval '
+ echo >>config.log "
+funcs: ${FUNCNAME[*]}
+lines: ${BASH_LINENO[*]}"
+ '; fi
echo $compiler "$@" >> config.log
$compiler "$@" >> config.log 2>&1 || return $?
# Test passed. If this is an --enable-werror build, rerun
return 1
}
+supported_hvf_target() {
+ test "$hvf" = "yes" || return 1
+ glob "$1" "*-softmmu" || return 1
+ case "${1%-softmmu}" in
+ x86_64)
+ return 0
+ ;;
+ esac
+ return 1
+}
+
+supported_whpx_target() {
+ test "$whpx" = "yes" || return 1
+ glob "$1" "*-softmmu" || return 1
+ case "${1%-softmmu}" in
+ i386|x86_64)
+ return 0
+ ;;
+ esac
+ return 1
+}
+
supported_target() {
case "$1" in
*-softmmu)
supported_kvm_target "$1" && return 0
supported_xen_target "$1" && return 0
supported_hax_target "$1" && return 0
+ supported_hvf_target "$1" && return 0
+ supported_whpx_target "$1" && return 0
print_error "TCG disabled, but hardware accelerator not available for '$target'"
return 1
}
libattr=""
xfs=""
tcg="yes"
-
+membarrier=""
vhost_net="no"
+vhost_crypto="no"
vhost_scsi="no"
vhost_vsock="no"
vhost_user=""
kvm="no"
hax="no"
+hvf="no"
+whpx="no"
rdma=""
gprof="no"
debug_tcg="no"
debug="no"
+sanitizers="no"
fortify_source=""
strip_opt="yes"
tcg_interpreter="no"
jemalloc="no"
replication="yes"
vxhs=""
+libxml2=""
+docker="no"
supported_cpu="no"
supported_os="no"
--cpu=*) cpu="$optarg"
;;
--extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
- EXTRA_CFLAGS="$optarg"
;;
--extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
- EXTRA_CXXFLAGS="$optarg"
;;
--extra-ldflags=*) LDFLAGS="$LDFLAGS $optarg"
EXTRA_LDFLAGS="$optarg"
QEMU_CFLAGS="-Wall -Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
-QEMU_INCLUDES="-I. -I\$(SRC_PATH) -I\$(SRC_PATH)/accel/tcg -I\$(SRC_PATH)/include"
+QEMU_INCLUDES="-iquote . -iquote \$(SRC_PATH) -iquote \$(SRC_PATH)/accel/tcg -iquote \$(SRC_PATH)/include"
if test "$debug_info" = "yes"; then
CFLAGS="-g $CFLAGS"
LDFLAGS="-g $LDFLAGS"
fi
elif check_define __mips__ ; then
cpu="mips"
-elif check_define __ia64__ ; then
- cpu="ia64"
elif check_define __s390__ ; then
if check_define __s390x__ ; then
cpu="s390x"
audio_drv_list="sdl"
audio_possible_drivers="sdl"
HOST_VARIANT_DIR="openbsd"
+ supported_os="yes"
;;
Darwin)
bsd="yes"
darwin="yes"
hax="yes"
+ hvf="yes"
LDFLAGS_SHARED="-bundle -undefined dynamic_lookup"
if [ "$cpu" = "x86_64" ] ; then
QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
linux_user="yes"
kvm="yes"
vhost_net="yes"
+ vhost_crypto="yes"
vhost_scsi="yes"
vhost_vsock="yes"
QEMU_INCLUDES="-I\$(SRC_PATH)/linux-headers -I$(pwd)/linux-headers $QEMU_INCLUDES"
;;
--firmwarepath=*) firmwarepath="$optarg"
;;
+ --host=*|--build=*|\
+ --disable-dependency-tracking|\
--sbindir=*|--sharedstatedir=*|\
--oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
--htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
strip_opt="no"
fortify_source="no"
;;
+ --enable-sanitizers) sanitizers="yes"
+ ;;
+ --disable-sanitizers) sanitizers="no"
+ ;;
--enable-sparse) sparse="yes"
;;
--disable-sparse) sparse="no"
;;
--enable-hax) hax="yes"
;;
+ --disable-hvf) hvf="no"
+ ;;
+ --enable-hvf) hvf="yes"
+ ;;
+ --disable-whpx) whpx="no"
+ ;;
+ --enable-whpx) whpx="yes"
+ ;;
--disable-tcg-interpreter) tcg_interpreter="no"
;;
--enable-tcg-interpreter) tcg_interpreter="yes"
;;
--enable-attr) attr="yes"
;;
+ --disable-membarrier) membarrier="no"
+ ;;
+ --enable-membarrier) membarrier="yes"
+ ;;
--disable-blobs) blobs="no"
;;
- --with-pkgversion=*) pkgversion=" ($optarg)"
+ --with-pkgversion=*) pkgversion="$optarg"
;;
--with-coroutine=*) coroutine="$optarg"
;;
;;
--enable-vhost-net) vhost_net="yes"
;;
+ --disable-vhost-crypto) vhost_crypto="no"
+ ;;
+ --enable-vhost-crypto)
+ vhost_crypto="yes"
+ if test "$mingw32" = "yes"; then
+ error_exit "vhost-crypto isn't available on win32"
+ fi
+ ;;
--disable-vhost-scsi) vhost_scsi="no"
;;
--enable-vhost-scsi) vhost_scsi="yes"
;;
--enable-numa) numa="yes"
;;
+ --disable-libxml2) libxml2="no"
+ ;;
+ --enable-libxml2) libxml2="yes"
+ ;;
--disable-tcmalloc) tcmalloc="no"
;;
--enable-tcmalloc) tcmalloc="yes"
esac
QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
-EXTRA_CFLAGS="$CPU_CFLAGS $EXTRA_CFLAGS"
# For user-mode emulation the host arch has to be one we explicitly
# support, even if we're using TCI.
--install=INSTALL use specified install [$install]
--python=PYTHON use specified python [$python]
--smbd=SMBD use specified smbd [$smbd]
+ --with-git=GIT use specified git [$git]
--static enable static build [$static]
--mandir=PATH install man pages in PATH
--datadir=PATH install firmware in PATH$confsuffix
--docdir=PATH install documentation in PATH$confsuffix
--bindir=PATH install binaries in PATH
--libdir=PATH install libraries in PATH
+ --libexecdir=PATH install helper binaries in PATH
--sysconfdir=PATH install config in PATH$confsuffix
--localstatedir=PATH install local state in PATH (set at runtime on win32)
--firmwarepath=PATH search PATH for firmware files
--with-confsuffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir [$confsuffix]
+ --with-pkgversion=VERS use specified string as sub-version of the package
--enable-debug enable common debug build options
+ --enable-sanitizers enable default sanitizers
--disable-strip disable stripping binaries
--disable-werror disable compilation abort on warning
--disable-stack-protector disable compiler-provided stack protection
virtfs VirtFS
mpath Multipath persistent reservation passthrough
xen xen backend driver support
- xen-pci-passthrough
+ xen-pci-passthrough PCI passthrough support for Xen
brlapi BrlAPI (Braile)
curl curl connectivity
+ membarrier membarrier system call (for Linux 4.14+ or Windows)
fdt fdt device tree
bluez bluez stack connectivity
kvm KVM acceleration support
hax HAX acceleration support
- rdma RDMA-based migration support
+ hvf Hypervisor.framework acceleration support
+ whpx Windows Hypervisor Platform acceleration support
+ rdma Enable RDMA-based migration and PVRDMA support
vde support for vde network
netmap support for netmap network
linux-aio Linux AIO support
cap-ng libcap-ng support
attr attr and xattr support
vhost-net vhost-net acceleration support
+ vhost-crypto vhost-crypto acceleration support
spice spice
rbd rados block device (rbd)
libiscsi iscsi support
tpm TPM support
libssh2 ssh block device support
numa libnuma support
+ libxml2 for Parallels image format
tcmalloc tcmalloc support
jemalloc jemalloc support
replication replication support
# Note that if the Python conditional here evaluates True we will exit
# with status 1 which is a shell 'false' value.
-if ! $python -c 'import sys; sys.exit(sys.version_info < (2,6) or sys.version_info >= (3,))'; then
- error_exit "Cannot use '$python', Python 2.6 or later is required." \
- "Note that Python 3 or later is not yet supported." \
+if ! $python -c 'import sys; sys.exit(sys.version_info < (2,6))'; then
+ error_exit "Cannot use '$python', Python 2 >= 2.6 or Python 3 is required." \
"Use --python=/path/to/python to specify a supported Python."
fi
gcc_flags="-Wendif-labels -Wno-shift-negative-value $gcc_flags"
gcc_flags="-Wno-initializer-overrides -Wexpansion-to-defined $gcc_flags"
gcc_flags="-Wno-string-plus-int $gcc_flags"
+gcc_flags="-Wno-error=address-of-packed-member $gcc_flags"
# Note that we do not add -Werror to gcc_flags here, because that would
# enable it for all configure tests. If a configure test failed due
# to -Werror this would just silently disable some features,
EOF
if compile_object ; then
- if grep -q BiGeNdIaN $TMPO ; then
+ if strings -a $TMPO | grep -q BiGeNdIaN ; then
bigendian="yes"
- elif grep -q LiTtLeEnDiAn $TMPO ; then
+ elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
bigendian="no"
else
echo big/little test failed
xen=yes
xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
xen_pc="$xen_pc xenevtchn xendevicemodel"
+ if $pkg_config --exists xentoolcore; then
+ xen_pc="$xen_pc xentoolcore"
+ fi
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"
# Xen unstable
elif
cat > $TMPC <<EOF &&
+#undef XC_WANT_COMPAT_DEVICEMODEL_API
+#define __XEN_TOOLS__
+#include <xendevicemodel.h>
+#include <xenforeignmemory.h>
+int main(void) {
+ xendevicemodel_handle *xd;
+ xenforeignmemory_handle *xfmem;
+
+ xd = xendevicemodel_open(0, 0);
+ xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
+
+ xfmem = xenforeignmemory_open(0, 0);
+ xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
+
+ return 0;
+}
+EOF
+ compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
+ then
+ xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
+ xen_ctrl_version=41100
+ xen=yes
+ elif
+ cat > $TMPC <<EOF &&
#undef XC_WANT_COMPAT_MAP_FOREIGN_API
#include <xenforeignmemory.h>
+#include <xentoolcore.h>
int main(void) {
xenforeignmemory_handle *xfmem;
xfmem = xenforeignmemory_open(0, 0);
xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
+ xentoolcore_restrict_all(0);
return 0;
}
EOF
- compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
+ compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
then
- xen_stable_libs="-lxendevicemodel $xen_stable_libs"
+ xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
xen_ctrl_version=41000
xen=yes
elif
"which requires Xen support."
fi
+##########################################
+# Windows Hypervisor Platform accelerator (WHPX) check
+if test "$whpx" != "no" ; then
+ if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h"; then
+ whpx="yes"
+ else
+ if test "$whpx" = "yes"; then
+ feature_not_found "WinHvPlatform" "WinHvEmulation is not installed"
+ fi
+ whpx="no"
+ fi
+fi
+
##########################################
# Sparse probe
if test "$sparse" != "no" ; then
##########################################
# X11 probe
-x11_cflags=
-x11_libs=-lX11
if $pkg_config --exists "x11"; then
+ have_x11=yes
x11_cflags=$($pkg_config --cflags x11)
x11_libs=$($pkg_config --libs x11)
fi
##########################################
# GTK probe
-if test "$gtkabi" = ""; then
- # The GTK ABI was not specified explicitly, so try whether 3.0 is available.
- # Use 2.0 as a fallback if that is available.
- if $pkg_config --exists "gtk+-3.0 >= 3.0.0"; then
- gtkabi=3.0
- elif $pkg_config --exists "gtk+-2.0 >= 2.18.0"; then
- gtkabi=2.0
- else
- gtkabi=3.0
- fi
-fi
-
if test "$gtk" != "no"; then
+ if test "$gtkabi" = ""; then
+ # The GTK ABI was not specified explicitly, so try whether 3.0 is available.
+ # Use 2.0 as a fallback if that is available.
+ if $pkg_config --exists "gtk+-3.0 >= 3.0.0"; then
+ gtkabi=3.0
+ elif $pkg_config --exists "gtk+-2.0 >= 2.18.0"; then
+ gtkabi=2.0
+ else
+ gtkabi=3.0
+ fi
+ fi
gtkpackage="gtk+-$gtkabi"
gtkx11package="gtk+-x11-$gtkabi"
if test "$gtkabi" = "3.0" ; then
gtk_libs=$($pkg_config --libs $gtkpackage)
gtk_version=$($pkg_config --modversion $gtkpackage)
if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
+ need_x11=yes
gtk_cflags="$gtk_cflags $x11_cflags"
gtk_libs="$gtk_libs $x11_libs"
fi
- libs_softmmu="$gtk_libs $libs_softmmu"
gtk="yes"
elif test "$gtk" = "yes"; then
feature_not_found "gtk" "Install gtk3-devel"
vte_cflags=$($pkg_config --cflags $vtepackage)
vte_libs=$($pkg_config --libs $vtepackage)
vteversion=$($pkg_config --modversion $vtepackage)
- libs_softmmu="$vte_libs $libs_softmmu"
vte="yes"
elif test "$vte" = "yes"; then
if test "$gtkabi" = "3.0"; then
# Look for sdl configuration program (pkg-config or sdl-config). Try
# sdl-config even without cross prefix, and favour pkg-config over sdl-config.
-if test "$sdlabi" = ""; then
- if $pkg_config --exists "sdl2"; then
- sdlabi=2.0
- elif $pkg_config --exists "sdl"; then
- sdlabi=1.2
- else
- sdlabi=2.0
- fi
-fi
+sdl_probe ()
+{
+ sdl_too_old=no
+ if test "$sdlabi" = ""; then
+ if $pkg_config --exists "sdl2"; then
+ sdlabi=2.0
+ elif $pkg_config --exists "sdl"; then
+ sdlabi=1.2
+ else
+ sdlabi=2.0
+ fi
+ fi
-if test $sdlabi = "2.0"; then
- sdl_config=$sdl2_config
- sdlname=sdl2
- sdlconfigname=sdl2_config
-elif test $sdlabi = "1.2"; then
- sdlname=sdl
- sdlconfigname=sdl_config
-else
- error_exit "Unknown sdlabi $sdlabi, must be 1.2 or 2.0"
-fi
+ if test $sdlabi = "2.0"; then
+ sdl_config=$sdl2_config
+ sdlname=sdl2
+ sdlconfigname=sdl2_config
+ elif test $sdlabi = "1.2"; then
+ sdlname=sdl
+ sdlconfigname=sdl_config
+ else
+ error_exit "Unknown sdlabi $sdlabi, must be 1.2 or 2.0"
+ fi
-if test "$(basename $sdl_config)" != $sdlconfigname && ! has ${sdl_config}; then
- sdl_config=$sdlconfigname
-fi
+ if test "$(basename $sdl_config)" != $sdlconfigname && ! has ${sdl_config}; then
+ sdl_config=$sdlconfigname
+ fi
-if $pkg_config $sdlname --exists; then
- sdlconfig="$pkg_config $sdlname"
- sdlversion=$($sdlconfig --modversion 2>/dev/null)
-elif has ${sdl_config}; then
- sdlconfig="$sdl_config"
- sdlversion=$($sdlconfig --version)
-else
- if test "$sdl" = "yes" ; then
- feature_not_found "sdl" "Install SDL2-devel"
+ if $pkg_config $sdlname --exists; then
+ sdlconfig="$pkg_config $sdlname"
+ sdlversion=$($sdlconfig --modversion 2>/dev/null)
+ elif has ${sdl_config}; then
+ sdlconfig="$sdl_config"
+ sdlversion=$($sdlconfig --version)
+ else
+ if test "$sdl" = "yes" ; then
+ feature_not_found "sdl" "Install SDL2-devel"
+ fi
+ sdl=no
+ # no need to do the rest
+ return
+ fi
+ if test -n "$cross_prefix" && test "$(basename "$sdlconfig")" = sdl-config; then
+ echo warning: using "\"$sdlconfig\"" to detect cross-compiled sdl >&2
fi
- sdl=no
-fi
-if test -n "$cross_prefix" && test "$(basename "$sdlconfig")" = sdl-config; then
- echo warning: using "\"$sdlconfig\"" to detect cross-compiled sdl >&2
-fi
-sdl_too_old=no
-if test "$sdl" != "no" ; then
cat > $TMPC << EOF
#include <SDL.h>
#undef main /* We don't want SDL to override our main() */
int main( void ) { return SDL_Init (SDL_INIT_VIDEO); }
EOF
sdl_cflags=$($sdlconfig --cflags 2>/dev/null)
+ sdl_cflags="$sdl_cflags -Wno-undef" # workaround 2.0.8 bug
if test "$static" = "yes" ; then
if $pkg_config $sdlname --exists; then
sdl_libs=$($pkg_config $sdlname --static --libs 2>/dev/null)
fi
sdl=no
fi # sdl compile test
+}
+
+if test "$sdl" != "no" ; then
+ sdl_probe
fi
if test "$sdl" = "yes" ; then
int main(void) { return 0; }
EOF
if compile_prog "$sdl_cflags $x11_cflags" "$sdl_libs $x11_libs" ; then
+ need_x11=yes
sdl_cflags="$sdl_cflags $x11_cflags"
sdl_libs="$sdl_libs $x11_libs"
fi
#include <rdma/rdma_cma.h>
int main(void) { return 0; }
EOF
- rdma_libs="-lrdmacm -libverbs"
+ rdma_libs="-lrdmacm -libverbs -libumad"
if compile_prog "" "$rdma_libs" ; then
rdma="yes"
+ libs_softmmu="$libs_softmmu $rdma_libs"
else
if test "$rdma" = "yes" ; then
error_exit \
- " OpenFabrics librdmacm/libibverbs not present." \
+ " OpenFabrics librdmacm/libibverbs/libibumad not present." \
" Your options:" \
- " (1) Fast: Install infiniband packages from your distro." \
+ " (1) Fast: Install infiniband packages (devel) from your distro." \
" (2) Cleanest: Install libraries from www.openfabrics.org" \
" (3) Also: Install softiwarp if you don't have RDMA hardware"
fi
unset IFS
if compile_prog "$curses_inc" "$curses_lib" ; then
curses_found=yes
- QEMU_CFLAGS="$curses_inc $QEMU_CFLAGS"
- libs_softmmu="$curses_lib $libs_softmmu"
break
fi
done
fi
glib_modules=gthread-2.0
if test "$modules" = yes; then
- glib_modules="$glib_modules gmodule-2.0"
+ glib_modules="$glib_modules gmodule-export-2.0"
fi
# This workaround is required due to a bug in pkg-config file for glib as it
done
if test "$found" = "no"; then
LIBS="$pthread_lib $LIBS"
+ libs_qga="$pthread_lib $libs_qga"
fi
PTHREAD_LIB="$pthread_lib"
break
fdt_required=no
for target in $target_list; do
case $target in
- aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu)
+ aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu|riscv*-softmmu)
fdt_required=yes
;;
esac
EOF
if compile_prog "" "$fdt_libs" ; then
# system DTC is good - use it
- fdt=yes
+ fdt=system
else
# have GIT checkout, so activate dtc submodule
if test -e "${source_path}/.git" ; then
git_submodules="${git_submodules} dtc"
fi
if test -d "${source_path}/dtc/libfdt" || test -e "${source_path}/.git" ; then
- fdt=yes
- dtc_internal="yes"
+ fdt=git
mkdir -p dtc
if [ "$pwd_is_source_path" != "y" ] ; then
symlink "$source_path/dtc/Makefile" "dtc/Makefile"
symlink "$source_path/dtc/scripts" "dtc/scripts"
fi
fdt_cflags="-I\$(SRC_PATH)/dtc/libfdt"
- fdt_libs="-L\$(BUILD_DIR)/dtc/libfdt $fdt_libs"
+ fdt_ldflags="-L\$(BUILD_DIR)/dtc/libfdt"
+ fdt_libs="$fdt_libs"
elif test "$fdt" = "yes" ; then
# Not a git build & no libfdt found, prompt for system install
error_exit "DTC (libfdt) version >= 1.4.2 not present." \
if test "$opengl" != "no" ; then
opengl_pkgs="epoxy libdrm gbm"
- if $pkg_config $opengl_pkgs x11; then
- opengl_cflags="$($pkg_config --cflags $opengl_pkgs) $x11_cflags"
- opengl_libs="$($pkg_config --libs $opengl_pkgs) $x11_libs"
+ if $pkg_config $opengl_pkgs; then
+ opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
+ opengl_libs="$($pkg_config --libs $opengl_pkgs)"
opengl=yes
if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
gtk_gl="yes"
fi
fi
+##########################################
+# libxml2 probe
+if test "$libxml2" != "no" ; then
+ if $pkg_config --exists libxml-2.0; then
+ libxml2="yes"
+ libxml2_cflags=$($pkg_config --cflags libxml-2.0)
+ libxml2_libs=$($pkg_config --libs libxml-2.0)
+ else
+ if test "$libxml2" = "yes"; then
+ feature_not_found "libxml2" "Install libxml2 devel"
+ fi
+ libxml2="no"
+ fi
+fi
##########################################
# glusterfs probe
# check for smartcard support
if test "$smartcard" != "no"; then
- if $pkg_config libcacard; then
+ if $pkg_config --atleast-version=2.5.1 libcacard; then
libcacard_cflags=$($pkg_config --cflags libcacard)
libcacard_libs=$($pkg_config --libs libcacard)
smartcard="yes"
"" | yes)
if $pkg_config capstone; then
capstone=system
- elif test -e "${source_path}/.git" ; then
+ elif test -e "${source_path}/.git" -a $git_update = 'yes' ; then
capstone=git
elif test -e "${source_path}/capstone/Makefile" ; then
capstone=internal
posix_madvise=yes
fi
+##########################################
+# check if we have posix_memalign()
+
+posix_memalign=no
+cat > $TMPC << EOF
+#include <stdlib.h>
+int main(void) {
+ void *p;
+ return posix_memalign(&p, 8, 8);
+}
+EOF
+if compile_prog "" "" ; then
+ posix_memalign=yes
+fi
+
##########################################
# check if we have posix_syslog
fi
if test "$debug_stack_usage" = "yes"; then
- if test "$cpu" = "ia64" -o "$cpu" = "hppa"; then
- error_exit "stack usage debugging is not supported for $cpu"
- fi
if test "$coroutine_pool" = "yes"; then
echo "WARN: disabling coroutine pool for stack usage debugging"
coroutine_pool=no
pragma_disable_unused_but_set=no
cat > $TMPC << EOF
#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
#pragma GCC diagnostic ignored "-Wstrict-prototypes"
#pragma GCC diagnostic pop
atomic64=yes
fi
+########################################
+# See if 16-byte vector operations are supported.
+# Even without a vector unit the compiler may expand these.
+# There is a bug in old GCC for PPC that crashes here.
+# Unfortunately it's the system compiler for Centos 7.
+
+cat > $TMPC << EOF
+typedef unsigned char U1 __attribute__((vector_size(16)));
+typedef unsigned short U2 __attribute__((vector_size(16)));
+typedef unsigned int U4 __attribute__((vector_size(16)));
+typedef unsigned long long U8 __attribute__((vector_size(16)));
+typedef signed char S1 __attribute__((vector_size(16)));
+typedef signed short S2 __attribute__((vector_size(16)));
+typedef signed int S4 __attribute__((vector_size(16)));
+typedef signed long long S8 __attribute__((vector_size(16)));
+static U1 a1, b1;
+static U2 a2, b2;
+static U4 a4, b4;
+static U8 a8, b8;
+static S1 c1;
+static S2 c2;
+static S4 c4;
+static S8 c8;
+static int i;
+void helper(void *d, void *a, int shift, int i);
+void helper(void *d, void *a, int shift, int i)
+{
+ *(U1 *)(d + i) = *(U1 *)(a + i) << shift;
+ *(U2 *)(d + i) = *(U2 *)(a + i) << shift;
+ *(U4 *)(d + i) = *(U4 *)(a + i) << shift;
+ *(U8 *)(d + i) = *(U8 *)(a + i) << shift;
+}
+int main(void)
+{
+ a1 += b1; a2 += b2; a4 += b4; a8 += b8;
+ a1 -= b1; a2 -= b2; a4 -= b4; a8 -= b8;
+ a1 *= b1; a2 *= b2; a4 *= b4; a8 *= b8;
+ a1 &= b1; a2 &= b2; a4 &= b4; a8 &= b8;
+ a1 |= b1; a2 |= b2; a4 |= b4; a8 |= b8;
+ a1 ^= b1; a2 ^= b2; a4 ^= b4; a8 ^= b8;
+ a1 <<= i; a2 <<= i; a4 <<= i; a8 <<= i;
+ a1 >>= i; a2 >>= i; a4 >>= i; a8 >>= i;
+ c1 >>= i; c2 >>= i; c4 >>= i; c8 >>= i;
+ return 0;
+}
+EOF
+
+vector16=no
+if compile_prog "" "" ; then
+ vector16=yes
+fi
+
########################################
# check if getauxval is available.
fi
fi
+###############################################
+# Check if copy_file_range is provided by glibc
+have_copy_file_range=no
+cat > $TMPC << EOF
+#include <unistd.h>
+int main(void) {
+ copy_file_range(0, NULL, 0, NULL, 0, 0);
+ return 0;
+}
+EOF
+if compile_prog "" "" ; then
+ have_copy_file_range=yes
+fi
+
##########################################
# check if struct fsxattr is available via linux/fs.h
have_fsxattr=yes
fi
+##########################################
+# check for usable membarrier system call
+if test "$membarrier" = "yes"; then
+ have_membarrier=no
+ if test "$mingw32" = "yes" ; then
+ have_membarrier=yes
+ elif test "$linux" = "yes" ; then
+ cat > $TMPC << EOF
+ #include <linux/membarrier.h>
+ #include <sys/syscall.h>
+ #include <unistd.h>
+ #include <stdlib.h>
+ int main(void) {
+ syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
+ syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
+ exit(0);
+ }
+EOF
+ if compile_prog "" "" ; then
+ have_membarrier=yes
+ fi
+ fi
+ if test "$have_membarrier" = "no"; then
+ feature_not_found "membarrier" "membarrier system call not available"
+ fi
+else
+ # Do not enable it by default even for Mingw32, because it doesn't
+ # work on Wine.
+ membarrier=no
+fi
+
##########################################
# check if rtnetlink.h exists and is useful
have_rtnetlink=no
fi
+#################################################
+# Check to see if we have the Hypervisor framework
+if [ "$darwin" = "yes" ] ; then
+ cat > $TMPC << EOF
+#include <Hypervisor/hv.h>
+int main() { return 0;}
+EOF
+ if ! compile_object ""; then
+ hvf='no'
+ else
+ hvf='yes'
+ LDFLAGS="-framework Hypervisor $LDFLAGS"
+ fi
+fi
+
#################################################
# Sparc implicitly links with --relax, which is
# incompatible with -r, so --no-relax should be
have_utmpx=yes
fi
+##########################################
+# checks for sanitizers
+
+have_asan=no
+have_ubsan=no
+have_asan_iface_h=no
+have_asan_iface_fiber=no
+
+if test "$sanitizers" = "yes" ; then
+ write_c_skeleton
+ if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
+ have_asan=yes
+ fi
+
+ # we could use a simple skeleton for flags checks, but this also
+ # detect the static linking issue of ubsan, see also:
+ # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
+ cat > $TMPC << EOF
+#include <stdlib.h>
+int main(void) {
+ void *tmp = malloc(10);
+ return *(int *)(tmp + 2);
+}
+EOF
+ if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
+ have_ubsan=yes
+ fi
+
+ if check_include "sanitizer/asan_interface.h" ; then
+ have_asan_iface_h=yes
+ fi
+
+ cat > $TMPC << EOF
+#include <sanitizer/asan_interface.h>
+int main(void) {
+ __sanitizer_start_switch_fiber(0, 0, 0);
+ return 0;
+}
+EOF
+ if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
+ have_asan_iface_fiber=yes
+ fi
+fi
+
+##########################################
+# Docker and cross-compiler support
+#
+# This is specifically for building test
+# cases for foreign architectures, not
+# cross-compiling QEMU itself.
+
+if has "docker"; then
+ docker=$($python $source_path/tests/docker/docker.py probe)
+fi
+
##########################################
# End of CC checks
# After here, no more $cc or $ld runs
+write_c_skeleton
+
if test "$gcov" = "yes" ; then
CFLAGS="-fprofile-arcs -ftest-coverage -g $CFLAGS"
LDFLAGS="-fprofile-arcs -ftest-coverage $LDFLAGS"
CFLAGS="-O2 $CFLAGS"
fi
+if test "$have_asan" = "yes"; then
+ CFLAGS="-fsanitize=address $CFLAGS"
+ if test "$have_asan_iface_h" = "no" ; then
+ echo "ASAN build enabled, but ASAN header missing." \
+ "Without code annotation, the report may be inferior."
+ elif test "$have_asan_iface_fiber" = "no" ; then
+ echo "ASAN build enabled, but ASAN header is too old." \
+ "Without code annotation, the report may be inferior."
+ fi
+fi
+if test "$have_ubsan" = "yes"; then
+ CFLAGS="-fsanitize=undefined $CFLAGS"
+fi
+
##########################################
# Do we have libnfs
if test "$libnfs" != "no" ; then
# prepend pixman and ftd flags after all config tests are done
QEMU_CFLAGS="$pixman_cflags $fdt_cflags $QEMU_CFLAGS"
+QEMU_LDFLAGS="$fdt_ldflags $QEMU_LDFLAGS"
libs_softmmu="$pixman_libs $libs_softmmu"
echo "Install prefix $prefix"
echo "CFLAGS $CFLAGS"
echo "QEMU_CFLAGS $QEMU_CFLAGS"
echo "LDFLAGS $LDFLAGS"
+echo "QEMU_LDFLAGS $QEMU_LDFLAGS"
echo "make $make"
echo "install $install"
echo "python $python"
echo "Install blobs $blobs"
echo "KVM support $kvm"
echo "HAX support $hax"
+echo "HVF support $hvf"
+echo "WHPX support $whpx"
echo "TCG support $tcg"
if test "$tcg" = "yes" ; then
echo "TCG debug enabled $debug_tcg"
echo "malloc trim support $malloc_trim"
echo "RDMA support $rdma"
echo "fdt support $fdt"
+echo "membarrier $membarrier"
echo "preadv support $preadv"
echo "fdatasync $fdatasync"
echo "madvise $madvise"
echo "posix_madvise $posix_madvise"
+echo "posix_memalign $posix_memalign"
echo "libcap-ng support $cap_ng"
echo "vhost-net support $vhost_net"
+echo "vhost-crypto support $vhost_crypto"
echo "vhost-scsi support $vhost_scsi"
echo "vhost-vsock support $vhost_vsock"
echo "vhost-user support $vhost_user"
echo "snappy support $snappy"
echo "bzip2 support $bzip2"
echo "NUMA host support $numa"
+echo "libxml2 $libxml2"
echo "tcmalloc support $tcmalloc"
echo "jemalloc support $jemalloc"
echo "avx2 optimization $avx2_opt"
echo "replication support $replication"
echo "VxHS block device $vxhs"
echo "capstone $capstone"
+echo "docker $docker"
if test "$sdl_too_old" = "yes"; then
echo "-> Your SDL version is too old - please upgrade to have SDL support"
fi
+if test "$gtkabi" = "2.0"; then
+ echo
+ echo "WARNING: Use of GTK 2.0 is deprecated and will be removed in"
+ echo "WARNING: future releases. Please switch to using GTK 3.0"
+fi
+
+if test "$sdlabi" = "1.2"; then
+ echo
+ echo "WARNING: Use of SDL 1.2 is deprecated and will be removed in"
+ echo "WARNING: future releases. Please switch to using SDL 2.0"
+fi
+
if test "$supported_cpu" = "no"; then
echo
echo "WARNING: SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!"
echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
fi
echo "qemu_helperdir=$libexecdir" >> $config_host_mak
-echo "extra_cflags=$EXTRA_CFLAGS" >> $config_host_mak
-echo "extra_cxxflags=$EXTRA_CXXFLAGS" >> $config_host_mak
-echo "extra_ldflags=$EXTRA_LDFLAGS" >> $config_host_mak
echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
echo "GIT=$git" >> $config_host_mak
echo "CONFIG_QGA_NTDDDISK=y" >> $config_host_mak
fi
if test "$guest_agent_msi" = "yes"; then
- echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak
+ echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak
echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
fi
echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
for drv in $audio_drv_list; do
- def=CONFIG_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
- echo "$def=y" >> $config_host_mak
+ def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
+ case "$drv" in
+ alsa | oss | pa | sdl)
+ echo "$def=m" >> $config_host_mak ;;
+ *)
+ echo "$def=y" >> $config_host_mak ;;
+ esac
done
echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
echo "VERSION=$qemu_version" >>$config_host_mak
echo "PKGVERSION=$pkgversion" >>$config_host_mak
echo "SRC_PATH=$source_path" >> $config_host_mak
-echo "TARGET_DIRS=$target_list" >> $config_host_mak
+echo "TARGET_LIST=$target_list" >> $config_host_mak
if [ "$docs" = "yes" ] ; then
echo "BUILD_DOCS=yes" >> $config_host_mak
fi
echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
echo "CONFIG_MODULES=y" >> $config_host_mak
fi
+if test "$have_x11" = "yes" -a "$need_x11" = "yes"; then
+ echo "CONFIG_X11=y" >> $config_host_mak
+ echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
+ echo "X11_LIBS=$x11_libs" >> $config_host_mak
+fi
if test "$sdl" = "yes" ; then
- echo "CONFIG_SDL=y" >> $config_host_mak
+ echo "CONFIG_SDL=m" >> $config_host_mak
echo "CONFIG_SDLABI=$sdlabi" >> $config_host_mak
echo "SDL_CFLAGS=$sdl_cflags" >> $config_host_mak
echo "SDL_LIBS=$sdl_libs" >> $config_host_mak
echo "CONFIG_COCOA=y" >> $config_host_mak
fi
if test "$curses" = "yes" ; then
- echo "CONFIG_CURSES=y" >> $config_host_mak
+ echo "CONFIG_CURSES=m" >> $config_host_mak
+ echo "CURSES_CFLAGS=$curses_inc" >> $config_host_mak
+ echo "CURSES_LIBS=$curses_lib" >> $config_host_mak
fi
if test "$pipe2" = "yes" ; then
echo "CONFIG_PIPE2=y" >> $config_host_mak
echo "CONFIG_HAS_GLIB_SUBPROCESS_TESTS=y" >> $config_host_mak
fi
if test "$gtk" = "yes" ; then
- echo "CONFIG_GTK=y" >> $config_host_mak
+ echo "CONFIG_GTK=m" >> $config_host_mak
echo "CONFIG_GTKABI=$gtkabi" >> $config_host_mak
echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
if test "$have_fsxattr" = "yes" ; then
echo "HAVE_FSXATTR=y" >> $config_host_mak
fi
+if test "$have_copy_file_range" = "yes" ; then
+ echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
+fi
if test "$vte" = "yes" ; then
echo "CONFIG_VTE=y" >> $config_host_mak
echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
+ echo "VTE_LIBS=$vte_libs" >> $config_host_mak
fi
if test "$virglrenderer" = "yes" ; then
echo "CONFIG_VIRGL=y" >> $config_host_mak
if test "$vhost_net" = "yes" -a "$vhost_user" = "yes"; then
echo "CONFIG_VHOST_NET_USED=y" >> $config_host_mak
fi
+if test "$vhost_crypto" = "yes" ; then
+ echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
+fi
if test "$vhost_vsock" = "yes" ; then
echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
fi
if test "$preadv" = "yes" ; then
echo "CONFIG_PREADV=y" >> $config_host_mak
fi
-if test "$fdt" = "yes" ; then
+if test "$fdt" != "no" ; then
echo "CONFIG_FDT=y" >> $config_host_mak
fi
+if test "$membarrier" = "yes" ; then
+ echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
+fi
if test "$signalfd" = "yes" ; then
echo "CONFIG_SIGNALFD=y" >> $config_host_mak
fi
if test "$posix_madvise" = "yes" ; then
echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
fi
+if test "$posix_memalign" = "yes" ; then
+ echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
+fi
if test "$spice" = "yes" ; then
echo "CONFIG_SPICE=y" >> $config_host_mak
echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
fi
+if test "$have_asan_iface_fiber" = "yes" ; then
+ echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
+fi
+
if test "$has_environ" = "yes" ; then
echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
fi
echo "CONFIG_ATOMIC64=y" >> $config_host_mak
fi
+if test "$vector16" = "yes" ; then
+ echo "CONFIG_VECTOR16=y" >> $config_host_mak
+fi
+
if test "$getauxval" = "yes" ; then
echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
fi
echo "CONFIG_RTNETLINK=y" >> $config_host_mak
fi
+if test "$libxml2" = "yes" ; then
+ echo "CONFIG_LIBXML2=y" >> $config_host_mak
+ echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
+ echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
+fi
+
if test "$replication" = "yes" ; then
echo "CONFIG_REPLICATION=y" >> $config_host_mak
fi
fi
if test "$tcg_interpreter" = "yes"; then
- QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/tci $QEMU_INCLUDES"
+ QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/tci $QEMU_INCLUDES"
elif test "$ARCH" = "sparc64" ; then
- QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/sparc $QEMU_INCLUDES"
+ QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/sparc $QEMU_INCLUDES"
elif test "$ARCH" = "s390x" ; then
- QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/s390 $QEMU_INCLUDES"
+ QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/s390 $QEMU_INCLUDES"
elif test "$ARCH" = "x86_64" -o "$ARCH" = "x32" ; then
- QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/i386 $QEMU_INCLUDES"
+ QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/i386 $QEMU_INCLUDES"
elif test "$ARCH" = "ppc64" ; then
- QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/ppc $QEMU_INCLUDES"
+ QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/ppc $QEMU_INCLUDES"
else
- QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/\$(ARCH) $QEMU_INCLUDES"
+ QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/\$(ARCH) $QEMU_INCLUDES"
fi
-QEMU_INCLUDES="-I\$(SRC_PATH)/tcg $QEMU_INCLUDES"
+QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg $QEMU_INCLUDES"
echo "TOOLS=$tools" >> $config_host_mak
echo "ROMS=$roms" >> $config_host_mak
fi
echo "LDFLAGS=$LDFLAGS" >> $config_host_mak
echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
+echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
echo "LD_REL_FLAGS=$LD_REL_FLAGS" >> $config_host_mak
echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
echo "LIBS+=$LIBS" >> $config_host_mak
echo "GCOV=$gcov_tool" >> $config_host_mak
fi
+if test "$docker" != "no"; then
+ echo "HAVE_USER_DOCKER=y" >> $config_host_mak
+fi
+
# use included Linux headers
if test "$linux" = "yes" ; then
mkdir -p linux-headers
target_bigendian="no"
case "$target_name" in
- armeb|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppcemb|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
+ armeb|aarch64_be|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppcemb|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
target_bigendian=yes
;;
esac
mttcg="yes"
gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
;;
- aarch64)
+ aarch64|aarch64_be)
+ TARGET_ARCH=aarch64
TARGET_BASE_ARCH=arm
bflt="yes"
mttcg="yes"
cris)
;;
hppa)
+ mttcg="yes"
;;
lm32)
;;
microblaze|microblazeel)
TARGET_ARCH=microblaze
bflt="yes"
+ echo "TARGET_ABI32=y" >> $config_target_mak
;;
mips|mipsel)
TARGET_ARCH=mips
echo "TARGET_ABI32=y" >> $config_target_mak
gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
;;
+ riscv32)
+ TARGET_BASE_ARCH=riscv
+ TARGET_ABI_DIR=riscv
+ mttcg=yes
+ ;;
+ riscv64)
+ TARGET_BASE_ARCH=riscv
+ TARGET_ABI_DIR=riscv
+ mttcg=yes
+ ;;
sh4|sh4eb)
TARGET_ARCH=sh4
bflt="yes"
echo "TARGET_ABI32=y" >> $config_target_mak
;;
s390x)
+ mttcg=yes
gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
;;
tilegx)
;;
xtensa|xtensaeb)
TARGET_ARCH=xtensa
+ mttcg="yes"
;;
*)
error_exit "Unsupported target CPU"
if supported_hax_target $target; then
echo "CONFIG_HAX=y" >> $config_target_mak
fi
+if supported_hvf_target $target; then
+ echo "CONFIG_HVF=y" >> $config_target_mak
+fi
+if supported_whpx_target $target; then
+ echo "CONFIG_WHPX=y" >> $config_target_mak
+fi
if test "$target_bigendian" = "yes" ; then
echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
fi
ppc*)
disas_config "PPC"
;;
+ riscv)
+ disas_config "RISCV"
+ ;;
s390*)
disas_config "S390"
;;
done # for target in $targets
-if [ "$dtc_internal" = "yes" ]; then
+if [ "$fdt" = "git" ]; then
echo "config-host.h: subdir-dtc" >> $config_host_mak
fi
if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
DIRS="$DIRS docs docs/interop fsdev scsi"
DIRS="$DIRS pc-bios/optionrom pc-bios/spapr-rtas pc-bios/s390-ccw"
DIRS="$DIRS roms/seabios roms/vgabios"
-DIRS="$DIRS qapi-generated"
FILES="Makefile tests/tcg/Makefile qdict-test-data.txt"
FILES="$FILES tests/tcg/cris/Makefile tests/tcg/cris/.gdbinit"
FILES="$FILES tests/tcg/lm32/Makefile tests/tcg/xtensa/Makefile po/Makefile"
projects / mirror_qemu.git / blobdiff