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contrib/plugins: use an independent makefile

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The initial reason to write this patch was to remove the last use of
CONFIG_DEBUG_TCG from the makefiles; the flags to use to build TCG
plugins are unrelated to --enable-debug-tcg, and instead they should
be the same as those used to build emulators (the plugins are not build
via meson for demonstration reasons only).

However, since contrib/plugins/Makefile is also the last case of doing
a compilation job using config-host.mak, go a step further and make it
use a completely separate configuration file, removing all references
to compilers from the toplevel config-host.mak.  Clean up references to
empty variables, and use .SECONDARY so that intermediate object files
are not deleted.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2023-09-07 12:54:42 +02:00
parent 1d558c906e
commit bafe78ad3b
2 changed files with 20 additions and 11 deletions
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15
configure vendored
View File

@ -245,7 +245,7 @@ for opt do
esac
done
default_cflags='-O2 -g'
git_submodules_action="update"
git="git"
docs="auto"
@ -732,6 +732,7 @@ for opt do
meson_option_parse --enable-debug-graph-lock ""
meson_option_parse --enable-debug-mutex ""
meson_option_add -Doptimization=0
default_cflags='-O0 -g'
;;
--disable-tcg) tcg="disabled"
plugins="no"
@ -1731,8 +1732,6 @@ echo "PYTHON=$python" >> $config_host_mak
echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
echo "MESON=$meson" >> $config_host_mak
echo "NINJA=$ninja" >> $config_host_mak
echo "PKG_CONFIG=${pkg_config}" >> $config_host_mak
echo "CC=$cc" >> $config_host_mak
echo "EXESUF=$EXESUF" >> $config_host_mak
# use included Linux headers for KVM architectures
@ -1757,6 +1756,16 @@ if test "$ccache_cpp2" = "yes"; then
echo "export CCACHE_CPP2=y" >> $config_host_mak
fi
# contrib/plugins configuration
echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
if test "$targetos" = darwin; then
echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
fi
# tests/tcg configuration
(config_host_mak=tests/tcg/config-host.mak
mkdir -p tests/tcg

16
contrib/plugins/Makefile
View File

@ -6,11 +6,11 @@
# programs that the main configure has already done for us.
#
BUILD_DIR := $(CURDIR)/../..
include config-host.mak
include $(BUILD_DIR)/config-host.mak
TOP_SRC_PATH = $(SRC_PATH)/../..
VPATH += $(SRC_PATH)/contrib/plugins
VPATH += $(SRC_PATH)
NAMES :=
NAMES += execlog
@ -26,15 +26,14 @@ SONAMES := $(addsuffix .so,$(addprefix lib,$(NAMES)))
# The main QEMU uses Glib extensively so it's perfectly fine to use it
# in plugins (which many example do).
CFLAGS := $(shell $(PKG_CONFIG) --cflags glib-2.0)
CFLAGS += -fPIC -Wall
CFLAGS += $(if $(CONFIG_DEBUG_TCG), -ggdb -O0)
CFLAGS += -I$(SRC_PATH)/include/qemu
PLUGIN_CFLAGS := $(shell $(PKG_CONFIG) --cflags glib-2.0)
PLUGIN_CFLAGS += -fPIC -Wall
PLUGIN_CFLAGS += -I$(TOP_SRC_PATH)/include/qemu
all: $(SONAMES)
%.o: %.c
$(CC) $(CFLAGS) -c -o $@ $<
$(CC) $(CFLAGS) $(PLUGIN_CFLAGS) -c -o $@ $<
lib%.so: %.o
ifeq ($(CONFIG_DARWIN),y)
@ -48,3 +47,4 @@ clean:
rm -Rf .libs
.PHONY: all clean
.SECONDARY: