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configure/Make: Build libfdt from submodule DTC 

Configure to use the DTC submodule to build libfdt when no system libfdt
is found. Prompt to install the DTC submodule if --enable-fdt is set but
no DTC can be found.

DTC has no out-of-tree build capability, so the configure will symlink
the Makefile and scripts directory in the out of tree build directory
and pass in all the needed DTC arguments to make out of tree build happen.
Ideally we fix the DTC make to support out of tree, but did it this way to
avoid commits to DTC.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Peter Crosthwaite 2013-04-18 14:47:31 +10:00 committed by Edgar E. Iglesias
parent 98f6360569
commit a540f158db
2 changed files with 36 additions and 5 deletions
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10
Makefile
View File

@ -145,6 +145,15 @@ pixman/Makefile: $(SRC_PATH)/pixman/configure
$(SRC_PATH)/pixman/configure:
(cd $(SRC_PATH)/pixman; autoreconf -v --install)
DTC_MAKE_ARGS=-I$(SRC_PATH)/dtc VPATH=$(SRC_PATH)/dtc -C dtc V="$(V)" LIBFDT_srcdir=$(SRC_PATH)/dtc/libfdt
DTC_CFLAGS=$(CFLAGS) $(extra_cflags) -I$(BUILD_DIR)/dtc -I$(SRC_PATH)/dtc -I$(SRC_PATH)/dtc/libfdt
subdir-dtc:dtc/libfdt dtc/tests
$(call quiet-command,$(MAKE) $(DTC_MAKE_ARGS) CPPFLAGS="$(DTC_CFLAGS)" LDFLAGS="$(LDFLAGS)" ARFLAGS="$(ARFLAGS)" CC="$(CC)" AR="$(AR)" LD="$(LD)" $(SUBDIR_MAKEFLAGS) libfdt,)
dtc/%:
mkdir -p $@
$(SUBDIR_RULES): libqemuutil.a libqemustub.a $(common-obj-y)
ROMSUBDIR_RULES=$(patsubst %,romsubdir-%, $(ROMS))
@ -262,6 +271,7 @@ distclean: clean
rm -rf $$d || exit 1 ; \
done
if test -f pixman/config.log; then make -C pixman distclean; fi
if test -f dtc/version_gen.h; then make $(DTC_MAKE_ARGS) clean; fi
KEYMAPS=da en-gb et fr fr-ch is lt modifiers no pt-br sv \
ar de en-us fi fr-be hr it lv nl pl ru th \

31
configure vendored
View File

@ -2496,17 +2496,34 @@ if test "$fdt" != "no" ; then
int main(void) { return 0; }
EOF
if compile_prog "" "$fdt_libs" ; then
# system DTC is good - use it
fdt=yes
libs_softmmu="$libs_softmmu $fdt_libs"
else
if test "$fdt" = "yes" ; then
feature_not_found "fdt"
elif test -d ${source_path}/dtc/libfdt ; then
# have submodule DTC - use it
fdt=yes
dtc_internal="yes"
mkdir -p dtc
if [ "$source_path" != `pwd` ] ; 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 $fdt_libs"
elif test "$fdt" = "yes" ; then
# have neither and want - prompt for system/submodule install
error_exit "ERROR: DTC not present. Your options:" \
" (1) Preferred: Install the DTC devel package" \
" (2) Fetch the DTC submodule, using:" \
" git submodule update --init dtc"
else
# don't have and don't want
fdt_libs=
fdt=no
fi
fi
libs_softmmu="$libs_softmmu $fdt_libs"
##########################################
# GLX probe, used by milkymist-tmu2
if test "$glx" != "no" ; then
@ -3452,7 +3469,7 @@ if test "$cpu" = "ppc64" -a "$targetos" != "Darwin" ; then
fi
# add pixman flags after all config tests are done
QEMU_CFLAGS="$QEMU_CFLAGS $pixman_cflags"
QEMU_CFLAGS="$QEMU_CFLAGS $pixman_cflags $fdt_cflags"
libs_softmmu="$libs_softmmu $pixman_libs"
echo "Install prefix $prefix"
@ -4515,6 +4532,10 @@ if [ "$pixman" = "internal" ]; then
echo "config-host.h: subdir-pixman" >> $config_host_mak
fi
if [ "$dtc_internal" = "yes" ]; then
echo "config-host.h: subdir-dtc" >> $config_host_mak
fi
# build tree in object directory in case the source is not in the current directory
DIRS="tests tests/tcg tests/tcg/cris tests/tcg/lm32 tests/libqos"
DIRS="$DIRS pc-bios/optionrom pc-bios/spapr-rtas"